diff options
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/Makefile.am | 6 | ||||
| -rw-r--r-- | bfd/Makefile.in | 8 | ||||
| -rw-r--r-- | bfd/archures.c | 6 | ||||
| -rw-r--r-- | bfd/bfd-in2.h | 58 | ||||
| -rw-r--r-- | bfd/config.bfd | 16 | ||||
| -rwxr-xr-x | bfd/configure | 2 | ||||
| -rw-r--r-- | bfd/configure.ac | 2 | ||||
| -rw-r--r-- | bfd/cpu-nios2.c | 75 | ||||
| -rw-r--r-- | bfd/elf-bfd.h | 1 | ||||
| -rw-r--r-- | bfd/elf-eh-frame.c | 1 | ||||
| -rw-r--r-- | bfd/elf32-nios2.c | 6086 | ||||
| -rw-r--r-- | bfd/elf32-nios2.h | 38 | ||||
| -rw-r--r-- | bfd/libbfd.h | 52 | ||||
| -rw-r--r-- | bfd/reloc.c | 107 | ||||
| -rw-r--r-- | bfd/targets.c | 5 |
15 files changed, 2 insertions, 6461 deletions
diff --git a/bfd/Makefile.am b/bfd/Makefile.am index 0dc733eaba9..dadbd0f7882 100644 --- a/bfd/Makefile.am +++ b/bfd/Makefile.am @@ -144,7 +144,6 @@ ALL_MACHINES = \ cpu-mt.lo \ cpu-nds32.lo \ cpu-nfp.lo \ - cpu-nios2.lo \ cpu-ns32k.lo \ cpu-or1k.lo \ cpu-pdp11.lo \ @@ -228,7 +227,6 @@ ALL_MACHINES_CFILES = \ cpu-mt.c \ cpu-nds32.c \ cpu-nfp.c \ - cpu-nios2.c \ cpu-ns32k.c \ cpu-or1k.c \ cpu-pdp11.c \ @@ -333,7 +331,6 @@ BFD32_BACKENDS = \ elf32-msp430.lo \ elf32-mt.lo \ elf32-nds32.lo \ - elf32-nios2.lo \ elf32-or1k.lo \ elf32-pj.lo \ elf32-ppc.lo \ @@ -468,7 +465,6 @@ BFD32_BACKENDS_CFILES = \ elf32-msp430.c \ elf32-mt.c \ elf32-nds32.c \ - elf32-nios2.c \ elf32-or1k.c \ elf32-pj.c \ elf32-ppc.c \ @@ -708,7 +704,7 @@ SOURCE_HFILES = \ ecoff-bfd.h ecoffswap.h \ elf32-arm.h elf32-avr.h elf32-bfin.h elf32-cr16.h elf32-csky.h \ elf32-dlx.h elf32-hppa.h elf32-m68hc1x.h elf32-m68k.h \ - elf32-metag.h elf32-nds32.h elf32-nios2.h elf32-ppc.h \ + elf32-metag.h elf32-nds32.h elf32-ppc.h \ elf32-rx.h elf32-score.h elf32-sh-relocs.h elf32-spu.h \ elf32-tic6x.h elf32-tilegx.h elf32-tilepro.h elf32-v850.h \ elf64-hppa.h elf64-ppc.h elf64-tilegx.h \ diff --git a/bfd/Makefile.in b/bfd/Makefile.in index 38364f4b2ba..a781e2b8959 100644 --- a/bfd/Makefile.in +++ b/bfd/Makefile.in @@ -610,7 +610,6 @@ ALL_MACHINES = \ cpu-mt.lo \ cpu-nds32.lo \ cpu-nfp.lo \ - cpu-nios2.lo \ cpu-ns32k.lo \ cpu-or1k.lo \ cpu-pdp11.lo \ @@ -694,7 +693,6 @@ ALL_MACHINES_CFILES = \ cpu-mt.c \ cpu-nds32.c \ cpu-nfp.c \ - cpu-nios2.c \ cpu-ns32k.c \ cpu-or1k.c \ cpu-pdp11.c \ @@ -800,7 +798,6 @@ BFD32_BACKENDS = \ elf32-msp430.lo \ elf32-mt.lo \ elf32-nds32.lo \ - elf32-nios2.lo \ elf32-or1k.lo \ elf32-pj.lo \ elf32-ppc.lo \ @@ -935,7 +932,6 @@ BFD32_BACKENDS_CFILES = \ elf32-msp430.c \ elf32-mt.c \ elf32-nds32.c \ - elf32-nios2.c \ elf32-or1k.c \ elf32-pj.c \ elf32-ppc.c \ @@ -1172,7 +1168,7 @@ SOURCE_HFILES = \ ecoff-bfd.h ecoffswap.h \ elf32-arm.h elf32-avr.h elf32-bfin.h elf32-cr16.h elf32-csky.h \ elf32-dlx.h elf32-hppa.h elf32-m68hc1x.h elf32-m68k.h \ - elf32-metag.h elf32-nds32.h elf32-nios2.h elf32-ppc.h \ + elf32-metag.h elf32-nds32.h elf32-ppc.h \ elf32-rx.h elf32-score.h elf32-sh-relocs.h elf32-spu.h \ elf32-tic6x.h elf32-tilegx.h elf32-tilepro.h elf32-v850.h \ elf64-hppa.h elf64-ppc.h elf64-tilegx.h \ @@ -1524,7 +1520,6 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-mt.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-nds32.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-nfp.Plo@am__quote@ -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-nios2.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-ns32k.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-or1k.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-pdp11.Plo@am__quote@ @@ -1614,7 +1609,6 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-msp430.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-mt.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-nds32.Plo@am__quote@ -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-nios2.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-or1k.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-pj.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-ppc.Plo@am__quote@ diff --git a/bfd/archures.c b/bfd/archures.c index c4decc59e4a..5c104af6ef3 100644 --- a/bfd/archures.c +++ b/bfd/archures.c @@ -536,10 +536,6 @@ DESCRIPTION .#define bfd_mach_aarch64_8R 1 .#define bfd_mach_aarch64_ilp32 32 .#define bfd_mach_aarch64_llp64 64 -. bfd_arch_nios2, {* Nios II. *} -.#define bfd_mach_nios2 0 -.#define bfd_mach_nios2r1 1 -.#define bfd_mach_nios2r2 2 . bfd_arch_visium, {* Visium. *} .#define bfd_mach_visium 1 . bfd_arch_wasm32, {* WebAssembly. *} @@ -681,7 +677,6 @@ extern const bfd_arch_info_type bfd_msp430_arch; extern const bfd_arch_info_type bfd_mt_arch; extern const bfd_arch_info_type bfd_nds32_arch; extern const bfd_arch_info_type bfd_nfp_arch; -extern const bfd_arch_info_type bfd_nios2_arch; extern const bfd_arch_info_type bfd_ns32k_arch; extern const bfd_arch_info_type bfd_or1k_arch; extern const bfd_arch_info_type bfd_pdp11_arch; @@ -770,7 +765,6 @@ static const bfd_arch_info_type * const bfd_archures_list[] = &bfd_mt_arch, &bfd_nds32_arch, &bfd_nfp_arch, - &bfd_nios2_arch, &bfd_ns32k_arch, &bfd_or1k_arch, &bfd_pdp11_arch, diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index 3b047d922f3..092a6587c1c 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -1802,10 +1802,6 @@ enum bfd_architecture #define bfd_mach_aarch64_8R 1 #define bfd_mach_aarch64_ilp32 32 #define bfd_mach_aarch64_llp64 64 - bfd_arch_nios2, /* Nios II. */ -#define bfd_mach_nios2 0 -#define bfd_mach_nios2r1 1 -#define bfd_mach_nios2r2 2 bfd_arch_visium, /* Visium. */ #define bfd_mach_visium 1 bfd_arch_wasm32, /* WebAssembly. */ @@ -6164,60 +6160,6 @@ enum bfd_reloc_code_real BFD_RELOC_MSP430_SET_ULEB128, BFD_RELOC_MSP430_SUB_ULEB128, - /* Relocations used by the Altera Nios II core. */ - BFD_RELOC_NIOS2_S16, - BFD_RELOC_NIOS2_U16, - BFD_RELOC_NIOS2_CALL26, - BFD_RELOC_NIOS2_IMM5, - BFD_RELOC_NIOS2_CACHE_OPX, - BFD_RELOC_NIOS2_IMM6, - BFD_RELOC_NIOS2_IMM8, - BFD_RELOC_NIOS2_HI16, - BFD_RELOC_NIOS2_LO16, - BFD_RELOC_NIOS2_HIADJ16, - BFD_RELOC_NIOS2_GPREL, - BFD_RELOC_NIOS2_UJMP, - BFD_RELOC_NIOS2_CJMP, - BFD_RELOC_NIOS2_CALLR, - BFD_RELOC_NIOS2_ALIGN, - BFD_RELOC_NIOS2_GOT16, - BFD_RELOC_NIOS2_CALL16, - BFD_RELOC_NIOS2_GOTOFF_LO, - BFD_RELOC_NIOS2_GOTOFF_HA, - BFD_RELOC_NIOS2_PCREL_LO, - BFD_RELOC_NIOS2_PCREL_HA, - BFD_RELOC_NIOS2_TLS_GD16, - BFD_RELOC_NIOS2_TLS_LDM16, - BFD_RELOC_NIOS2_TLS_LDO16, - BFD_RELOC_NIOS2_TLS_IE16, - BFD_RELOC_NIOS2_TLS_LE16, - BFD_RELOC_NIOS2_TLS_DTPMOD, - BFD_RELOC_NIOS2_TLS_DTPREL, - BFD_RELOC_NIOS2_TLS_TPREL, - BFD_RELOC_NIOS2_COPY, - BFD_RELOC_NIOS2_GLOB_DAT, - BFD_RELOC_NIOS2_JUMP_SLOT, - BFD_RELOC_NIOS2_RELATIVE, - BFD_RELOC_NIOS2_GOTOFF, - BFD_RELOC_NIOS2_CALL26_NOAT, - BFD_RELOC_NIOS2_GOT_LO, - BFD_RELOC_NIOS2_GOT_HA, - BFD_RELOC_NIOS2_CALL_LO, - BFD_RELOC_NIOS2_CALL_HA, - BFD_RELOC_NIOS2_R2_S12, - BFD_RELOC_NIOS2_R2_I10_1_PCREL, - BFD_RELOC_NIOS2_R2_T1I7_1_PCREL, - BFD_RELOC_NIOS2_R2_T1I7_2, - BFD_RELOC_NIOS2_R2_T2I4, - BFD_RELOC_NIOS2_R2_T2I4_1, - BFD_RELOC_NIOS2_R2_T2I4_2, - BFD_RELOC_NIOS2_R2_X1I7_2, - BFD_RELOC_NIOS2_R2_X2L5, - BFD_RELOC_NIOS2_R2_F1I5_2, - BFD_RELOC_NIOS2_R2_L5I4X1, - BFD_RELOC_NIOS2_R2_T1X1I6, - BFD_RELOC_NIOS2_R2_T1X1I6_2, - /* PRU LDI 16-bit unsigned data-memory relocation. */ BFD_RELOC_PRU_U16, diff --git a/bfd/config.bfd b/bfd/config.bfd index 6553aac1e99..e2b09a2a92e 100644 --- a/bfd/config.bfd +++ b/bfd/config.bfd @@ -204,7 +204,6 @@ m68*) targ_archs=bfd_m68k_arch ;; microblaze*) targ_archs=bfd_microblaze_arch ;; mips*) targ_archs=bfd_mips_arch ;; nds32*) targ_archs=bfd_nds32_arch ;; -nios2*) targ_archs=bfd_nios2_arch ;; or1k*|or1knd*) targ_archs=bfd_or1k_arch ;; pdp11*) targ_archs=bfd_pdp11_arch ;; pj*) targ_archs="bfd_pj_arch bfd_i386_arch";; @@ -1070,21 +1069,6 @@ case "${targ}" in targ_underscore=yes ;; - nios2eb-*-*) - targ_defvec=nios2_elf32_be_vec - targ_selvecs=nios2_elf32_le_vec - ;; - - nios2el-*-*) - targ_defvec=nios2_elf32_le_vec - targ_selvecs=nios2_elf32_be_vec - ;; - - nios2-*-*) - targ_defvec=nios2_elf32_le_vec - targ_selvecs=nios2_elf32_be_vec - ;; - or1k-*-elf | or1k-*-linux* | or1k-*-rtems*) targ_defvec=or1k_elf32_vec ;; diff --git a/bfd/configure b/bfd/configure index b50cb7571d8..2db9f76b9eb 100755 --- a/bfd/configure +++ b/bfd/configure @@ -15977,8 +15977,6 @@ do nds32_elf32_linux_be_vec) tb="$tb elf32-nds32.lo elf32.lo $elf" ;; nds32_elf32_linux_le_vec) tb="$tb elf32-nds32.lo elf32.lo $elf" ;; nfp_elf64_vec) tb="$tb elf64-nfp.lo elf64.lo $elf" ;; - nios2_elf32_be_vec) tb="$tb elf32-nios2.lo elf32.lo $elf" ;; - nios2_elf32_le_vec) tb="$tb elf32-nios2.lo elf32.lo $elf" ;; ns32k_aout_pc532mach_vec) tb="$tb pc532-mach.lo aout-ns32k.lo" ;; ns32k_aout_pc532nbsd_vec) tb="$tb ns32knetbsd.lo aout-ns32k.lo" ;; or1k_elf32_vec) tb="$tb elf32-or1k.lo elf32.lo $elf" ;; diff --git a/bfd/configure.ac b/bfd/configure.ac index 6bcfd1b7368..465a7463d48 100644 --- a/bfd/configure.ac +++ b/bfd/configure.ac @@ -563,8 +563,6 @@ do nds32_elf32_linux_be_vec) tb="$tb elf32-nds32.lo elf32.lo $elf" ;; nds32_elf32_linux_le_vec) tb="$tb elf32-nds32.lo elf32.lo $elf" ;; nfp_elf64_vec) tb="$tb elf64-nfp.lo elf64.lo $elf" ;; - nios2_elf32_be_vec) tb="$tb elf32-nios2.lo elf32.lo $elf" ;; - nios2_elf32_le_vec) tb="$tb elf32-nios2.lo elf32.lo $elf" ;; ns32k_aout_pc532mach_vec) tb="$tb pc532-mach.lo aout-ns32k.lo" ;; ns32k_aout_pc532nbsd_vec) tb="$tb ns32knetbsd.lo aout-ns32k.lo" ;; or1k_elf32_vec) tb="$tb elf32-or1k.lo elf32.lo $elf" ;; diff --git a/bfd/cpu-nios2.c b/bfd/cpu-nios2.c deleted file mode 100644 index 4b81b3ec9f5..00000000000 --- a/bfd/cpu-nios2.c +++ /dev/null @@ -1,75 +0,0 @@ -/* BFD support for the Altera Nios II processor. - Copyright (C) 2012-2024 Free Software Foundation, Inc. - Contributed by Nigel Gray (ngray@altera.com). - Contributed by Mentor Graphics, Inc. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" - -static const bfd_arch_info_type * -nios2_compatible (const bfd_arch_info_type *a, - const bfd_arch_info_type *b) -{ - if (a->arch != b->arch) - return NULL; - - if (a->bits_per_word != b->bits_per_word) - return NULL; - - if (a->mach == bfd_mach_nios2) - return a; - else if (b->mach == bfd_mach_nios2) - return b; - else if (a->mach != b->mach) - return NULL; - - return a; -} - -#define N(NUMBER, PRINT, DEFAULT, NEXT) \ - { \ - 32, /* Bits in a word. */ \ - 32, /* Bits in an address. */ \ - 8, /* Bits in a byte. */ \ - bfd_arch_nios2, \ - NUMBER, \ - "nios2", \ - PRINT, \ - 3, \ - DEFAULT, \ - nios2_compatible, \ - bfd_default_scan, \ - bfd_arch_default_fill, \ - NEXT, \ - 0 /* Maximum offset of a reloc from the start of an insn. */ \ - } - -#define NIOS2R1_NEXT &arch_info_struct[0] -#define NIOS2R2_NEXT &arch_info_struct[1] - -static const bfd_arch_info_type arch_info_struct[2] = -{ - N (bfd_mach_nios2r1, "nios2:r1", false, NIOS2R2_NEXT), - N (bfd_mach_nios2r2, "nios2:r2", false, NULL), -}; - -const bfd_arch_info_type bfd_nios2_arch = - N (bfd_mach_nios2, "nios2", true, NIOS2R1_NEXT); diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 96cf11936ae..b756e73736e 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -558,7 +558,6 @@ enum elf_target_id MIPS_ELF_DATA, MN10300_ELF_DATA, NDS32_ELF_DATA, - NIOS2_ELF_DATA, OR1K_ELF_DATA, PPC32_ELF_DATA, PPC64_ELF_DATA, diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c index ebe162f2e5f..6e0da8c4dd8 100644 --- a/bfd/elf-eh-frame.c +++ b/bfd/elf-eh-frame.c @@ -2145,7 +2145,6 @@ _bfd_elf_write_section_eh_frame (bfd *abfd, /* Fall thru */ case bfd_arch_frv: case bfd_arch_i386: - case bfd_arch_nios2: BFD_ASSERT (htab->hgot != NULL && ((htab->hgot->root.type == bfd_link_hash_defined) diff --git a/bfd/elf32-nios2.c b/bfd/elf32-nios2.c deleted file mode 100644 index f6580af9519..00000000000 --- a/bfd/elf32-nios2.c +++ /dev/null @@ -1,6086 +0,0 @@ -/* 32-bit ELF support for Nios II. - Copyright (C) 2012-2024 Free Software Foundation, Inc. - Contributed by Nigel Gray (ngray@altera.com). - Contributed by Mentor Graphics, Inc. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -/* This file handles Altera Nios II ELF targets. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" -#include "bfdlink.h" -#include "genlink.h" -#include "elf-bfd.h" -#include "elf/nios2.h" -#include "opcode/nios2.h" -#include "elf32-nios2.h" -#include "libiberty.h" - -/* Use RELA relocations. */ -#ifndef USE_RELA -#define USE_RELA -#endif - -#ifdef USE_REL -#undef USE_REL -#endif - -/* Forward declarations. */ -static bfd_reloc_status_type nios2_elf32_ignore_reloc - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_hi16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_lo16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_hiadj16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_pcrel_lo16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_pcrel_hiadj16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_pcrel16_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_call26_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_gprel_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_ujmp_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_cjmp_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); -static bfd_reloc_status_type nios2_elf32_callr_relocate - (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); - -/* Target vector. */ -extern const bfd_target nios2_elf32_le_vec; -extern const bfd_target nios2_elf32_be_vec; - -/* Offset of tp and dtp pointers from start of TLS block. */ -#define TP_OFFSET 0x7000 -#define DTP_OFFSET 0x8000 - -/* The relocation tables used for SHT_REL sections. There are separate - tables for R1 and R2 encodings. */ -static reloc_howto_type elf_nios2_r1_howto_table_rel[] = { - /* No relocation. */ - HOWTO (R_NIOS2_NONE, /* type */ - 0, /* rightshift */ - 0, /* size */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_NIOS2_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16-bit signed immediate relocation. */ - HOWTO (R_NIOS2_S16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_signed, /* complain on overflow */ - bfd_elf_generic_reloc, /* special function */ - "R_NIOS2_S16", /* name */ - false, /* partial_inplace */ - 0x003fffc0, /* src_mask */ - 0x003fffc0, /* dest_mask */ - false), /* pcrel_offset */ - - /* 16-bit unsigned immediate relocation. */ - HOWTO (R_NIOS2_U16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_unsigned, /* complain on overflow */ - bfd_elf_generic_reloc, /* special function */ - "R_NIOS2_U16", /* name */ - false, /* partial_inplace */ - 0x003fffc0, /* src_mask */ - 0x003fffc0, /* dest_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_PCREL16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - true, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_signed, /* complain on overflow */ - nios2_elf32_pcrel16_relocate, /* special function */ - "R_NIOS2_PCREL16", /* name */ - false, /* partial_inplace */ - 0x003fffc0, /* src_mask */ - 0x003fffc0, /* dest_mask */ - true), /* pcrel_offset */ - - HOWTO (R_NIOS2_CALL26, /* type */ - 2, /* rightshift */ - 4, /* size */ - 26, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_dont, /* complain on overflow */ - nios2_elf32_call26_relocate, /* special function */ - "R_NIOS2_CALL26", /* name */ - false, /* partial_inplace */ - 0xffffffc0, /* src_mask */ - 0xffffffc0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_IMM5, - 0, - 4, - 5, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM5", - false, - 0x000007c0, - 0x000007c0, - false), - - HOWTO (R_NIOS2_CACHE_OPX, - 0, - 4, - 5, - false, - 22, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_CACHE_OPX", - false, - 0x07c00000, - 0x07c00000, - false), - - HOWTO (R_NIOS2_IMM6, - 0, - 4, - 6, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM6", - false, - 0x00000fc0, - 0x00000fc0, - false), - - HOWTO (R_NIOS2_IMM8, - 0, - 4, - 8, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM8", - false, - 0x00003fc0, - 0x00003fc0, - false), - - HOWTO (R_NIOS2_HI16, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_hi16_relocate, - "R_NIOS2_HI16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_LO16, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_lo16_relocate, - "R_NIOS2_LO16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_HIADJ16, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_hiadj16_relocate, - "R_NIOS2_HIADJ16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_BFD_RELOC_32, - 0, - 4, /* long */ - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC32", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_BFD_RELOC_16, - 0, - 2, /* short */ - 16, - false, - 0, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC16", - false, - 0x0000ffff, - 0x0000ffff, - false), - - HOWTO (R_NIOS2_BFD_RELOC_8, - 0, - 1, /* byte */ - 8, - false, - 0, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC8", - false, - 0x000000ff, - 0x000000ff, - false), - - HOWTO (R_NIOS2_GPREL, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_gprel_relocate, - "R_NIOS2_GPREL", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_GNU_VTINHERIT, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - NULL, - "R_NIOS2_GNU_VTINHERIT", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_GNU_VTENTRY, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - _bfd_elf_rel_vtable_reloc_fn, - "R_NIOS2_GNU_VTENTRY", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_UJMP, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_ujmp_relocate, - "R_NIOS2_UJMP", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_CJMP, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_cjmp_relocate, - "R_NIOS2_CJMP", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_CALLR, - 0, - 4, - 32, - false, - 6, - complain_overflow_dont, - nios2_elf32_callr_relocate, - "R_NIOS2_CALLR", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_ALIGN, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - nios2_elf32_ignore_reloc, - "R_NIOS2_ALIGN", - false, - 0, - 0, - true), - - - HOWTO (R_NIOS2_GOT16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_GOT16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_CALL16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_CALL16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_GOTOFF_LO, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF_LO", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_GOTOFF_HA, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF_HA", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_PCREL_LO, - 0, - 4, - 16, - true, - 6, - complain_overflow_dont, - nios2_elf32_pcrel_lo16_relocate, - "R_NIOS2_PCREL_LO", - false, - 0x003fffc0, - 0x003fffc0, - true), - - HOWTO (R_NIOS2_PCREL_HA, - 0, - 4, - 16, - false, /* This is a PC-relative relocation, but we need to subtract - PC ourselves before the HIADJ. */ - 6, - complain_overflow_dont, - nios2_elf32_pcrel_hiadj16_relocate, - "R_NIOS2_PCREL_HA", - false, - 0x003fffc0, - 0x003fffc0, - true), - - HOWTO (R_NIOS2_TLS_GD16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_GD16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_TLS_LDM16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LDM16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_TLS_LDO16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LDO16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_TLS_IE16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_IE16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_TLS_LE16, - 0, - 4, - 16, - false, - 6, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LE16", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_TLS_DTPMOD, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_DTPMOD", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_TLS_DTPREL, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_DTPREL", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_TLS_TPREL, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_TPREL", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_COPY, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_COPY", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_GLOB_DAT, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GLOB_DAT", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_JUMP_SLOT, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_JUMP_SLOT", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_RELATIVE, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_RELATIVE", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_GOTOFF, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_CALL26_NOAT, /* type */ - 2, /* rightshift */ - 4, /* size */ - 26, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_dont, /* complain on overflow */ - nios2_elf32_call26_relocate, /* special function */ - "R_NIOS2_CALL26_NOAT", /* name */ - false, /* partial_inplace */ - 0xffffffc0, /* src_mask */ - 0xffffffc0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_GOT_LO, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOT_LO", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_GOT_HA, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOT_HA", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_CALL_LO, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_CALL_LO", - false, - 0x003fffc0, - 0x003fffc0, - false), - - HOWTO (R_NIOS2_CALL_HA, - 0, - 4, - 16, - false, - 6, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_CALL_HA", - false, - 0x003fffc0, - 0x003fffc0, - false), - -/* Add other relocations here. */ -}; - -static reloc_howto_type elf_nios2_r2_howto_table_rel[] = { - /* No relocation. */ - HOWTO (R_NIOS2_NONE, /* type */ - 0, /* rightshift */ - 0, /* size */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_NIOS2_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16-bit signed immediate relocation. */ - HOWTO (R_NIOS2_S16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - false, /* pc_relative */ - 16, /* bitpos */ - complain_overflow_signed, /* complain on overflow */ - bfd_elf_generic_reloc, /* special function */ - "R_NIOS2_S16", /* name */ - false, /* partial_inplace */ - 0xffff0000, /* src_mask */ - 0xffff0000, /* dest_mask */ - false), /* pcrel_offset */ - - /* 16-bit unsigned immediate relocation. */ - HOWTO (R_NIOS2_U16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - false, /* pc_relative */ - 16, /* bitpos */ - complain_overflow_unsigned, /* complain on overflow */ - bfd_elf_generic_reloc, /* special function */ - "R_NIOS2_U16", /* name */ - false, /* partial_inplace */ - 0xffff0000, /* src_mask */ - 0xffff0000, /* dest_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_PCREL16, /* type */ - 0, /* rightshift */ - 4, /* size */ - 16, /* bitsize */ - true, /* pc_relative */ - 16, /* bitpos */ - complain_overflow_signed, /* complain on overflow */ - nios2_elf32_pcrel16_relocate, /* special function */ - "R_NIOS2_PCREL16", /* name */ - false, /* partial_inplace */ - 0xffff0000, /* src_mask */ - 0xffff0000, /* dest_mask */ - true), /* pcrel_offset */ - - HOWTO (R_NIOS2_CALL26, /* type */ - 2, /* rightshift */ - 4, /* size */ - 26, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_dont, /* complain on overflow */ - nios2_elf32_call26_relocate, /* special function */ - "R_NIOS2_CALL26", /* name */ - false, /* partial_inplace */ - 0xffffffc0, /* src_mask */ - 0xffffffc0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_IMM5, - 0, - 4, - 5, - false, - 21, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM5", - false, - 0x03e00000, - 0x03e00000, - false), - - HOWTO (R_NIOS2_CACHE_OPX, - 0, - 4, - 5, - false, - 11, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_CACHE_OPX", - false, - 0x0000f800, - 0x0000f800, - false), - - HOWTO (R_NIOS2_IMM6, - 0, - 4, - 6, - false, - 26, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM6", - false, - 0xfc000000, - 0xfc000000, - false), - - HOWTO (R_NIOS2_IMM8, - 0, - 4, - 8, - false, - 24, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_IMM8", - false, - 0xff000000, - 0xff000000, - false), - - HOWTO (R_NIOS2_HI16, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_hi16_relocate, - "R_NIOS2_HI16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_LO16, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_lo16_relocate, - "R_NIOS2_LO16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_HIADJ16, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_hiadj16_relocate, - "R_NIOS2_HIADJ16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_BFD_RELOC_32, - 0, - 4, /* long */ - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC32", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_BFD_RELOC_16, - 0, - 2, /* short */ - 16, - false, - 0, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC16", - false, - 0x0000ffff, - 0x0000ffff, - false), - - HOWTO (R_NIOS2_BFD_RELOC_8, - 0, - 1, /* byte */ - 8, - false, - 0, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_BFD_RELOC8", - false, - 0x000000ff, - 0x000000ff, - false), - - HOWTO (R_NIOS2_GPREL, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_gprel_relocate, - "R_NIOS2_GPREL", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_GNU_VTINHERIT, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - NULL, - "R_NIOS2_GNU_VTINHERIT", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_GNU_VTENTRY, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - _bfd_elf_rel_vtable_reloc_fn, - "R_NIOS2_GNU_VTENTRY", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_UJMP, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_ujmp_relocate, - "R_NIOS2_UJMP", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_CJMP, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_cjmp_relocate, - "R_NIOS2_CJMP", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_CALLR, - 0, - 4, - 32, - false, - 16, - complain_overflow_dont, - nios2_elf32_callr_relocate, - "R_NIOS2_CALLR", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_ALIGN, - 0, - 4, - 0, - false, - 0, - complain_overflow_dont, - nios2_elf32_ignore_reloc, - "R_NIOS2_ALIGN", - false, - 0, - 0, - true), - - HOWTO (R_NIOS2_GOT16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_GOT16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_CALL16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_CALL16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_GOTOFF_LO, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF_LO", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_GOTOFF_HA, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF_HA", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_PCREL_LO, - 0, - 4, - 16, - true, - 16, - complain_overflow_dont, - nios2_elf32_pcrel_lo16_relocate, - "R_NIOS2_PCREL_LO", - false, - 0xffff0000, - 0xffff0000, - true), - - HOWTO (R_NIOS2_PCREL_HA, - 0, - 4, - 16, - false, /* This is a PC-relative relocation, but we need to subtract - PC ourselves before the HIADJ. */ - 16, - complain_overflow_dont, - nios2_elf32_pcrel_hiadj16_relocate, - "R_NIOS2_PCREL_HA", - false, - 0xffff0000, - 0xffff0000, - true), - - HOWTO (R_NIOS2_TLS_GD16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_GD16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_TLS_LDM16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LDM16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_TLS_LDO16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LDO16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_TLS_IE16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_IE16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_TLS_LE16, - 0, - 4, - 16, - false, - 16, - complain_overflow_bitfield, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_LE16", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_TLS_DTPMOD, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_DTPMOD", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_TLS_DTPREL, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_DTPREL", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_TLS_TPREL, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_TLS_TPREL", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_COPY, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_COPY", - false, - 0, - 0, - false), - - HOWTO (R_NIOS2_GLOB_DAT, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GLOB_DAT", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_JUMP_SLOT, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_JUMP_SLOT", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_RELATIVE, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_RELATIVE", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_GOTOFF, - 0, - 4, - 32, - false, - 0, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOTOFF", - false, - 0xffffffff, - 0xffffffff, - false), - - HOWTO (R_NIOS2_CALL26_NOAT, /* type */ - 2, /* rightshift */ - 4, /* size */ - 26, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_dont, /* complain on overflow */ - nios2_elf32_call26_relocate, /* special function */ - "R_NIOS2_CALL26_NOAT", /* name */ - false, /* partial_inplace */ - 0xffffffc0, /* src_mask */ - 0xffffffc0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_NIOS2_GOT_LO, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOT_LO", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_GOT_HA, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_GOT_HA", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_CALL_LO, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_CALL_LO", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_CALL_HA, - 0, - 4, - 16, - false, - 16, - complain_overflow_dont, - bfd_elf_generic_reloc, - "R_NIOS2_CALL_HA", - false, - 0xffff0000, - 0xffff0000, - false), - - HOWTO (R_NIOS2_R2_S12, - 0, - 4, - 12, - false, - 16, - complain_overflow_signed, - bfd_elf_generic_reloc, - "R_NIOS2_R2_S12", - false, - 0x0fff0000, - 0x0fff0000, - false), - - HOWTO (R_NIOS2_R2_I10_1_PCREL, - 1, - 2, - 10, - true, - 6, - complain_overflow_signed, - bfd_elf_generic_reloc, /* FIXME? */ - "R_NIOS2_R2_I10_1_PCREL", - false, - 0xffc0, - 0xffc0, - true), - - HOWTO (R_NIOS2_R2_T1I7_1_PCREL, - 1, - 2, - 7, - true, - 9, - complain_overflow_signed, - bfd_elf_generic_reloc, /* FIXME? */ - "R_NIOS2_R2_T1I7_1_PCREL", - false, - 0xfe00, - 0xfe00, - true), - - HOWTO (R_NIOS2_R2_T1I7_2, - 2, - 2, - 7, - false, - 9, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T1I7_2", - false, - 0xfe00, - 0xfe00, - false), - - HOWTO (R_NIOS2_R2_T2I4, - 0, - 2, - 4, - false, - 12, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T2I4", - false, - 0xf000, - 0xf000, - false), - - HOWTO (R_NIOS2_R2_T2I4_1, - 1, - 2, - 4, - false, - 12, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T2I4_1", - false, - 0xf000, - 0xf000, - false), - - HOWTO (R_NIOS2_R2_T2I4_2, - 2, - 2, - 4, - false, - 12, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T2I4_2", - false, - 0xf000, - 0xf000, - false), - - HOWTO (R_NIOS2_R2_X1I7_2, - 2, - 2, - 7, - false, - 6, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_X1I7_2", - false, - 0x1fc0, - 0x1fc0, - false), - - HOWTO (R_NIOS2_R2_X2L5, - 0, - 2, - 5, - false, - 6, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_X2L5", - false, - 0x07c0, - 0x07c0, - false), - - HOWTO (R_NIOS2_R2_F1I5_2, - 2, - 2, - 5, - false, - 6, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_F1L5_2", - false, - 0x07c0, - 0x07c0, - false), - - HOWTO (R_NIOS2_R2_L5I4X1, - 2, - 2, - 4, - false, - 6, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_L5I4X1", - false, - 0x03c0, - 0x03c0, - false), - - HOWTO (R_NIOS2_R2_T1X1I6, - 0, - 2, - 6, - false, - 9, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T1X1I6", - false, - 0x7e00, - 0x7e00, - false), - - HOWTO (R_NIOS2_R2_T1X1I6_2, - 2, - 4, - 6, - false, - 9, - complain_overflow_unsigned, - bfd_elf_generic_reloc, - "R_NIOS2_R2_T1I1X6_2", - false, - 0x7e00, - 0x7e00, - false), - -/* Add other relocations here. */ -}; - -static unsigned char elf_code_to_howto_index[R_NIOS2_ILLEGAL + 1]; - - -/* Return true if producing output for a R2 BFD. */ -#define BFD_IS_R2(abfd) (bfd_get_mach (abfd) == bfd_mach_nios2r2) - -/* Return the howto for relocation RTYPE. */ -static reloc_howto_type * -lookup_howto (unsigned int rtype, bfd *abfd) -{ - static int initialized = 0; - int i; - /* R2 relocations are a superset of R1, so use that for the lookup - table. */ - int r1_howto_tbl_size = (int) ARRAY_SIZE (elf_nios2_r1_howto_table_rel); - int r2_howto_tbl_size = (int) ARRAY_SIZE (elf_nios2_r2_howto_table_rel); - - if (!initialized) - { - initialized = 1; - memset (elf_code_to_howto_index, 0xff, - sizeof (elf_code_to_howto_index)); - for (i = 0; i < r2_howto_tbl_size; i++) - { - elf_code_to_howto_index[elf_nios2_r2_howto_table_rel[i].type] = i; - if (i < r1_howto_tbl_size) - BFD_ASSERT (elf_nios2_r2_howto_table_rel[i].type - == elf_nios2_r1_howto_table_rel[i].type); - } - } - - if (rtype > R_NIOS2_ILLEGAL) - return NULL; - i = elf_code_to_howto_index[rtype]; - if (BFD_IS_R2 (abfd)) - { - if (i >= r2_howto_tbl_size) - return NULL; - return elf_nios2_r2_howto_table_rel + i; - } - else - { - if (i >= r1_howto_tbl_size) - return NULL; - return elf_nios2_r1_howto_table_rel + i; - } -} - -/* Map for converting BFD reloc types to Nios II reloc types. */ -struct elf_reloc_map -{ - bfd_reloc_code_real_type bfd_val; - enum elf_nios2_reloc_type elf_val; -}; - -static const struct elf_reloc_map nios2_reloc_map[] = -{ - {BFD_RELOC_NONE, R_NIOS2_NONE}, - {BFD_RELOC_NIOS2_S16, R_NIOS2_S16}, - {BFD_RELOC_NIOS2_U16, R_NIOS2_U16}, - {BFD_RELOC_16_PCREL, R_NIOS2_PCREL16}, - {BFD_RELOC_NIOS2_CALL26, R_NIOS2_CALL26}, - {BFD_RELOC_NIOS2_IMM5, R_NIOS2_IMM5}, - {BFD_RELOC_NIOS2_CACHE_OPX, R_NIOS2_CACHE_OPX}, - {BFD_RELOC_NIOS2_IMM6, R_NIOS2_IMM6}, - {BFD_RELOC_NIOS2_IMM8, R_NIOS2_IMM8}, - {BFD_RELOC_NIOS2_HI16, R_NIOS2_HI16}, - {BFD_RELOC_NIOS2_LO16, R_NIOS2_LO16}, - {BFD_RELOC_NIOS2_HIADJ16, R_NIOS2_HIADJ16}, - {BFD_RELOC_32, R_NIOS2_BFD_RELOC_32}, - {BFD_RELOC_16, R_NIOS2_BFD_RELOC_16}, - {BFD_RELOC_8, R_NIOS2_BFD_RELOC_8}, - {BFD_RELOC_NIOS2_GPREL, R_NIOS2_GPREL}, - {BFD_RELOC_VTABLE_INHERIT, R_NIOS2_GNU_VTINHERIT}, - {BFD_RELOC_VTABLE_ENTRY, R_NIOS2_GNU_VTENTRY}, - {BFD_RELOC_NIOS2_UJMP, R_NIOS2_UJMP}, - {BFD_RELOC_NIOS2_CJMP, R_NIOS2_CJMP}, - {BFD_RELOC_NIOS2_CALLR, R_NIOS2_CALLR}, - {BFD_RELOC_NIOS2_ALIGN, R_NIOS2_ALIGN}, - {BFD_RELOC_NIOS2_GOT16, R_NIOS2_GOT16}, - {BFD_RELOC_NIOS2_CALL16, R_NIOS2_CALL16}, - {BFD_RELOC_NIOS2_GOTOFF_LO, R_NIOS2_GOTOFF_LO}, - {BFD_RELOC_NIOS2_GOTOFF_HA, R_NIOS2_GOTOFF_HA}, - {BFD_RELOC_NIOS2_PCREL_LO, R_NIOS2_PCREL_LO}, - {BFD_RELOC_NIOS2_PCREL_HA, R_NIOS2_PCREL_HA}, - {BFD_RELOC_NIOS2_TLS_GD16, R_NIOS2_TLS_GD16}, - {BFD_RELOC_NIOS2_TLS_LDM16, R_NIOS2_TLS_LDM16}, - {BFD_RELOC_NIOS2_TLS_LDO16, R_NIOS2_TLS_LDO16}, - {BFD_RELOC_NIOS2_TLS_IE16, R_NIOS2_TLS_IE16}, - {BFD_RELOC_NIOS2_TLS_LE16, R_NIOS2_TLS_LE16}, - {BFD_RELOC_NIOS2_TLS_DTPMOD, R_NIOS2_TLS_DTPMOD}, - {BFD_RELOC_NIOS2_TLS_DTPREL, R_NIOS2_TLS_DTPREL}, - {BFD_RELOC_NIOS2_TLS_TPREL, R_NIOS2_TLS_TPREL}, - {BFD_RELOC_NIOS2_COPY, R_NIOS2_COPY}, - {BFD_RELOC_NIOS2_GLOB_DAT, R_NIOS2_GLOB_DAT}, - {BFD_RELOC_NIOS2_JUMP_SLOT, R_NIOS2_JUMP_SLOT}, - {BFD_RELOC_NIOS2_RELATIVE, R_NIOS2_RELATIVE}, - {BFD_RELOC_NIOS2_GOTOFF, R_NIOS2_GOTOFF}, - {BFD_RELOC_NIOS2_CALL26_NOAT, R_NIOS2_CALL26_NOAT}, - {BFD_RELOC_NIOS2_GOT_LO, R_NIOS2_GOT_LO}, - {BFD_RELOC_NIOS2_GOT_HA, R_NIOS2_GOT_HA}, - {BFD_RELOC_NIOS2_CALL_LO, R_NIOS2_CALL_LO}, - {BFD_RELOC_NIOS2_CALL_HA, R_NIOS2_CALL_HA}, - {BFD_RELOC_NIOS2_R2_S12, R_NIOS2_R2_S12}, - {BFD_RELOC_NIOS2_R2_I10_1_PCREL, R_NIOS2_R2_I10_1_PCREL}, - {BFD_RELOC_NIOS2_R2_T1I7_1_PCREL, R_NIOS2_R2_T1I7_1_PCREL}, - {BFD_RELOC_NIOS2_R2_T1I7_2, R_NIOS2_R2_T1I7_2}, - {BFD_RELOC_NIOS2_R2_T2I4, R_NIOS2_R2_T2I4}, - {BFD_RELOC_NIOS2_R2_T2I4_1, R_NIOS2_R2_T2I4_1}, - {BFD_RELOC_NIOS2_R2_T2I4_2, R_NIOS2_R2_T2I4_2}, - {BFD_RELOC_NIOS2_R2_X1I7_2, R_NIOS2_R2_X1I7_2}, - {BFD_RELOC_NIOS2_R2_X2L5, R_NIOS2_R2_X2L5}, - {BFD_RELOC_NIOS2_R2_F1I5_2, R_NIOS2_R2_F1I5_2}, - {BFD_RELOC_NIOS2_R2_L5I4X1, R_NIOS2_R2_L5I4X1}, - {BFD_RELOC_NIOS2_R2_T1X1I6, R_NIOS2_R2_T1X1I6}, - {BFD_RELOC_NIOS2_R2_T1X1I6_2, R_NIOS2_R2_T1X1I6_2}, -}; - -enum elf32_nios2_stub_type -{ - nios2_stub_call26_before, - nios2_stub_call26_after, - nios2_stub_none -}; - -struct elf32_nios2_stub_hash_entry -{ - /* Base hash table entry structure. */ - struct bfd_hash_entry bh_root; - - /* The stub section. */ - asection *stub_sec; - - /* Offset within stub_sec of the beginning of this stub. */ - bfd_vma stub_offset; - - /* Given the symbol's value and its section we can determine its final - value when building the stubs (so the stub knows where to jump. */ - bfd_vma target_value; - asection *target_section; - - enum elf32_nios2_stub_type stub_type; - - /* The symbol table entry, if any, that this was derived from. */ - struct elf32_nios2_link_hash_entry *hh; - - /* And the reloc addend that this was derived from. */ - bfd_vma addend; - - /* Where this stub is being called from, or, in the case of combined - stub sections, the first input section in the group. */ - asection *id_sec; -}; - -#define nios2_stub_hash_entry(ent) \ - ((struct elf32_nios2_stub_hash_entry *)(ent)) - -#define nios2_stub_hash_lookup(table, string, create, copy) \ - ((struct elf32_nios2_stub_hash_entry *) \ - bfd_hash_lookup ((table), (string), (create), (copy))) - - -/* Nios II ELF linker hash entry. */ - -struct elf32_nios2_link_hash_entry -{ - struct elf_link_hash_entry root; - - /* A pointer to the most recently used stub hash entry against this - symbol. */ - struct elf32_nios2_stub_hash_entry *hsh_cache; - -#define GOT_UNKNOWN 0 -#define GOT_NORMAL 1 -#define GOT_TLS_GD 2 -#define GOT_TLS_IE 4 - unsigned char tls_type; - - /* We need to detect and take special action for symbols which are only - referenced with %call() and not with %got(). Such symbols do not need - a dynamic GOT reloc in shared objects, only a dynamic PLT reloc. Lazy - linking will not work if the dynamic GOT reloc exists. - To check for this condition efficiently, we compare got_types_used against - CALL_USED, meaning - (got_types_used & (GOT_USED | CALL_USED)) == CALL_USED. - */ -#define GOT_USED 1 -#define CALL_USED 2 - unsigned char got_types_used; -}; - -#define elf32_nios2_hash_entry(ent) \ - ((struct elf32_nios2_link_hash_entry *) (ent)) - -/* Get the Nios II elf linker hash table from a link_info structure. */ -#define elf32_nios2_hash_table(info) \ - ((struct elf32_nios2_link_hash_table *) ((info)->hash)) - -/* Nios II ELF linker hash table. */ -struct elf32_nios2_link_hash_table - { - /* The main hash table. */ - struct elf_link_hash_table root; - - /* The stub hash table. */ - struct bfd_hash_table bstab; - - /* Linker stub bfd. */ - bfd *stub_bfd; - - /* Linker call-backs. */ - asection * (*add_stub_section) (const char *, asection *, bool); - void (*layout_sections_again) (void); - - /* Array to keep track of which stub sections have been created, and - information on stub grouping. */ - struct map_stub - { - /* These are the section to which stubs in the group will be - attached. */ - asection *first_sec, *last_sec; - /* The stub sections. There might be stubs inserted either before - or after the real section.*/ - asection *first_stub_sec, *last_stub_sec; - } *stub_group; - - /* Assorted information used by nios2_elf32_size_stubs. */ - unsigned int bfd_count; - unsigned int top_index; - asection **input_list; - Elf_Internal_Sym **all_local_syms; - - /* Short-cuts to get to dynamic linker sections. */ - asection *sbss; - - /* GOT pointer symbol _gp_got. */ - struct elf_link_hash_entry *h_gp_got; - - union { - bfd_signed_vma refcount; - bfd_vma offset; - } tls_ldm_got; - - bfd_vma res_n_size; - }; - -struct nios2_elf32_obj_tdata -{ - struct elf_obj_tdata root; - - /* tls_type for each local got entry. */ - char *local_got_tls_type; - - /* TRUE if TLS GD relocs have been seen for this object. */ - bool has_tlsgd; -}; - -#define elf32_nios2_tdata(abfd) \ - ((struct nios2_elf32_obj_tdata *) (abfd)->tdata.any) - -#define elf32_nios2_local_got_tls_type(abfd) \ - (elf32_nios2_tdata (abfd)->local_got_tls_type) - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ -#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" - -/* PLT implementation for position-dependent code. */ -static const bfd_vma nios2_plt_entry[] = { /* .PLTn: */ - 0x03c00034, /* movhi r15, %hiadj(plt_got_slot_address) */ - 0x7bc00017, /* ldw r15, %lo(plt_got_slot_address)(r15) */ - 0x7800683a /* jmp r15 */ -}; - -static const bfd_vma nios2_plt0_entry[] = { /* .PLTresolve */ - 0x03800034, /* movhi r14, %hiadj(res_0) */ - 0x73800004, /* addi r14, r14, %lo(res_0) */ - 0x7b9fc83a, /* sub r15, r15, r14 */ - 0x03400034, /* movhi r13, %hiadj(_GLOBAL_OFFSET_TABLE_) */ - 0x6b800017, /* ldw r14, %lo(_GLOBAL_OFFSET_TABLE_+4)(r13) */ - 0x6b400017, /* ldw r13, %lo(_GLOBAL_OFFSET_TABLE_+8)(r13) */ - 0x6800683a /* jmp r13 */ -}; - -/* PLT implementation for position-independent code. */ -static const bfd_vma nios2_so_plt_entry[] = { /* .PLTn */ - 0x03c00034, /* movhi r15, %hiadj(index * 4) */ - 0x7bc00004, /* addi r15, r15, %lo(index * 4) */ - 0x00000006 /* br .PLTresolve */ -}; - -static const bfd_vma nios2_so_plt0_entry[] = { /* .PLTresolve */ - 0x001ce03a, /* nextpc r14 */ - 0x03400034, /* movhi r13, %hiadj(_GLOBAL_OFFSET_TABLE_) */ - 0x6b9b883a, /* add r13, r13, r14 */ - 0x6b800017, /* ldw r14, %lo(_GLOBAL_OFFSET_TABLE_+4)(r13) */ - 0x6b400017, /* ldw r13, %lo(_GLOBAL_OFFSET_TABLE_+8)(r13) */ - 0x6800683a /* jmp r13 */ -}; - -/* CALL26 stub. */ -static const bfd_vma nios2_call26_stub_entry[] = { - 0x00400034, /* orhi at, r0, %hiadj(dest) */ - 0x08400004, /* addi at, at, %lo(dest) */ - 0x0800683a /* jmp at */ -}; - -/* Install 16-bit immediate value VALUE at offset OFFSET into section SEC. */ -static void -nios2_elf32_install_imm16 (asection *sec, bfd_vma offset, bfd_vma value) -{ - bfd_vma word = bfd_get_32 (sec->owner, sec->contents + offset); - - bfd_put_32 (sec->owner, word | ((value & 0xffff) << 6), - sec->contents + offset); -} - -/* Install COUNT 32-bit values DATA starting at offset OFFSET into - section SEC. */ -static void -nios2_elf32_install_data (asection *sec, const bfd_vma *data, bfd_vma offset, - int count) -{ - while (count--) - { - bfd_put_32 (sec->owner, *data, sec->contents + offset); - offset += 4; - ++data; - } -} - -/* The usual way of loading a 32-bit constant into a Nios II register is to - load the high 16 bits in one instruction and then add the low 16 bits with - a signed add. This means that the high halfword needs to be adjusted to - compensate for the sign bit of the low halfword. This function returns the - adjusted high halfword for a given 32-bit constant. */ -static -bfd_vma hiadj (bfd_vma symbol_value) -{ - return ((symbol_value + 0x8000) >> 16) & 0xffff; -} - -/* Implement elf_backend_grok_prstatus: - Support for core dump NOTE sections. */ -static bool -nios2_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) -{ - int offset; - size_t size; - - switch (note->descsz) - { - default: - return false; - - case 212: /* Linux/Nios II */ - /* pr_cursig */ - elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); - - /* pr_pid */ - elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); - - /* pr_reg */ - offset = 72; - size = 136; - - break; - } - - /* Make a ".reg/999" section. */ - return _bfd_elfcore_make_pseudosection (abfd, ".reg", - size, note->descpos + offset); -} - -/* Implement elf_backend_grok_psinfo. */ -static bool -nios2_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) -{ - switch (note->descsz) - { - default: - return false; - - case 124: /* Linux/Nios II elf_prpsinfo */ - elf_tdata (abfd)->core->program - = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); - elf_tdata (abfd)->core->command - = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); - } - - /* Note that for some reason, a spurious space is tacked - onto the end of the args in some (at least one anyway) - implementations, so strip it off if it exists. */ - - { - char *command = elf_tdata (abfd)->core->command; - int n = strlen (command); - - if (0 < n && command[n - 1] == ' ') - command[n - 1] = '\0'; - } - - return true; -} - -/* Assorted hash table functions. */ - -/* Initialize an entry in the stub hash table. */ -static struct bfd_hash_entry * -stub_hash_newfunc (struct bfd_hash_entry *entry, - struct bfd_hash_table *table, - const char *string) -{ - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (entry == NULL) - { - entry = bfd_hash_allocate (table, - sizeof (struct elf32_nios2_stub_hash_entry)); - if (entry == NULL) - return entry; - } - - /* Call the allocation method of the superclass. */ - entry = bfd_hash_newfunc (entry, table, string); - if (entry != NULL) - { - struct elf32_nios2_stub_hash_entry *hsh; - - /* Initialize the local fields. */ - hsh = (struct elf32_nios2_stub_hash_entry *) entry; - hsh->stub_sec = NULL; - hsh->stub_offset = 0; - hsh->target_value = 0; - hsh->target_section = NULL; - hsh->stub_type = nios2_stub_none; - hsh->hh = NULL; - hsh->id_sec = NULL; - } - - return entry; -} - -/* Create an entry in a Nios II ELF linker hash table. */ -static struct bfd_hash_entry * -link_hash_newfunc (struct bfd_hash_entry *entry, - struct bfd_hash_table *table, const char *string) -{ - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (entry == NULL) - { - entry = bfd_hash_allocate (table, - sizeof (struct elf32_nios2_link_hash_entry)); - if (entry == NULL) - return entry; - } - - /* Call the allocation method of the superclass. */ - entry = _bfd_elf_link_hash_newfunc (entry, table, string); - if (entry) - { - struct elf32_nios2_link_hash_entry *eh; - - eh = (struct elf32_nios2_link_hash_entry *) entry; - eh->hsh_cache = NULL; - eh->tls_type = GOT_UNKNOWN; - eh->got_types_used = 0; - } - - return entry; -} - -/* Section name for stubs is the associated section name plus this - string. */ -#define STUB_SUFFIX ".stub" - -/* Build a name for an entry in the stub hash table. */ -static char * -nios2_stub_name (const asection *input_section, - const asection *sym_sec, - const struct elf32_nios2_link_hash_entry *hh, - const Elf_Internal_Rela *rel, - enum elf32_nios2_stub_type stub_type) -{ - char *stub_name; - bfd_size_type len; - char stubpos = (stub_type == nios2_stub_call26_before) ? 'b' : 'a'; - - if (hh) - { - len = 8 + 1 + 1 + 1+ strlen (hh->root.root.root.string) + 1 + 8 + 1; - stub_name = bfd_malloc (len); - if (stub_name != NULL) - { - sprintf (stub_name, "%08x_%c_%s+%x", - input_section->id & 0xffffffff, - stubpos, - hh->root.root.root.string, - (int) rel->r_addend & 0xffffffff); - } - } - else - { - len = 8 + 1 + 1 + 1+ 8 + 1 + 8 + 1 + 8 + 1; - stub_name = bfd_malloc (len); - if (stub_name != NULL) - { - sprintf (stub_name, "%08x_%c_%x:%x+%x", - input_section->id & 0xffffffff, - stubpos, - sym_sec->id & 0xffffffff, - (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, - (int) rel->r_addend & 0xffffffff); - } - } - return stub_name; -} - -/* Look up an entry in the stub hash. Stub entries are cached because - creating the stub name takes a bit of time. */ -static struct elf32_nios2_stub_hash_entry * -nios2_get_stub_entry (const asection *input_section, - const asection *sym_sec, - struct elf32_nios2_link_hash_entry *hh, - const Elf_Internal_Rela *rel, - struct elf32_nios2_link_hash_table *htab, - enum elf32_nios2_stub_type stub_type) -{ - struct elf32_nios2_stub_hash_entry *hsh; - const asection *id_sec; - - /* If this input section is part of a group of sections sharing one - stub section, then use the id of the first/last section in the group, - depending on the stub section placement relative to the group. - Stub names need to include a section id, as there may well be - more than one stub used to reach say, printf, and we need to - distinguish between them. */ - if (stub_type == nios2_stub_call26_before) - id_sec = htab->stub_group[input_section->id].first_sec; - else - id_sec = htab->stub_group[input_section->id].last_sec; - - if (hh != NULL && hh->hsh_cache != NULL - && hh->hsh_cache->hh == hh - && hh->hsh_cache->id_sec == id_sec - && hh->hsh_cache->stub_type == stub_type) - { - hsh = hh->hsh_cache; - } - else - { - char *stub_name; - - stub_name = nios2_stub_name (id_sec, sym_sec, hh, rel, stub_type); - if (stub_name == NULL) - return NULL; - - hsh = nios2_stub_hash_lookup (&htab->bstab, - stub_name, false, false); - - if (hh != NULL) - hh->hsh_cache = hsh; - - free (stub_name); - } - - return hsh; -} - -/* Add a new stub entry to the stub hash. Not all fields of the new - stub entry are initialised. */ -static struct elf32_nios2_stub_hash_entry * -nios2_add_stub (const char *stub_name, - asection *section, - struct elf32_nios2_link_hash_table *htab, - enum elf32_nios2_stub_type stub_type) -{ - asection *link_sec; - asection *stub_sec; - asection **secptr, **linkptr; - struct elf32_nios2_stub_hash_entry *hsh; - bool afterp; - - if (stub_type == nios2_stub_call26_before) - { - link_sec = htab->stub_group[section->id].first_sec; - secptr = &(htab->stub_group[section->id].first_stub_sec); - linkptr = &(htab->stub_group[link_sec->id].first_stub_sec); - afterp = false; - } - else - { - link_sec = htab->stub_group[section->id].last_sec; - secptr = &(htab->stub_group[section->id].last_stub_sec); - linkptr = &(htab->stub_group[link_sec->id].last_stub_sec); - afterp = true; - } - stub_sec = *secptr; - if (stub_sec == NULL) - { - stub_sec = *linkptr; - if (stub_sec == NULL) - { - size_t namelen; - bfd_size_type len; - char *s_name; - - namelen = strlen (link_sec->name); - len = namelen + sizeof (STUB_SUFFIX); - s_name = bfd_alloc (htab->stub_bfd, len); - if (s_name == NULL) - return NULL; - - memcpy (s_name, link_sec->name, namelen); - memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); - - stub_sec = (*htab->add_stub_section) (s_name, link_sec, afterp); - if (stub_sec == NULL) - return NULL; - *linkptr = stub_sec; - } - *secptr = stub_sec; - } - - /* Enter this entry into the linker stub hash table. */ - hsh = nios2_stub_hash_lookup (&htab->bstab, stub_name, - true, false); - if (hsh == NULL) - { - /* xgettext:c-format */ - _bfd_error_handler (_("%pB: cannot create stub entry %s"), - section->owner, - stub_name); - return NULL; - } - - hsh->stub_sec = stub_sec; - hsh->stub_offset = 0; - hsh->id_sec = link_sec; - return hsh; -} - -/* Set up various things so that we can make a list of input sections - for each output section included in the link. Returns -1 on error, - 0 when no stubs will be needed, and 1 on success. */ -int -nios2_elf32_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) -{ - bfd *input_bfd; - unsigned int bfd_count; - unsigned int top_id, top_index; - asection *section; - asection **input_list, **list; - size_t amt; - struct elf32_nios2_link_hash_table *htab = elf32_nios2_hash_table (info); - - /* Count the number of input BFDs and find the top input section id. */ - for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; - input_bfd != NULL; - input_bfd = input_bfd->link.next) - { - bfd_count += 1; - for (section = input_bfd->sections; - section != NULL; - section = section->next) - { - if (top_id < section->id) - top_id = section->id; - } - } - - htab->bfd_count = bfd_count; - - amt = sizeof (struct map_stub) * (top_id + 1); - htab->stub_group = bfd_zmalloc (amt); - if (htab->stub_group == NULL) - return -1; - - /* We can't use output_bfd->section_count here to find the top output - section index as some sections may have been removed, and - strip_excluded_output_sections doesn't renumber the indices. */ - for (section = output_bfd->sections, top_index = 0; - section != NULL; - section = section->next) - { - if (top_index < section->index) - top_index = section->index; - } - - htab->top_index = top_index; - amt = sizeof (asection *) * (top_index + 1); - input_list = bfd_malloc (amt); - htab->input_list = input_list; - if (input_list == NULL) - return -1; - - /* For sections we aren't interested in, mark their entries with a - value we can check later. */ - list = input_list + top_index; - do - *list = bfd_abs_section_ptr; - while (list-- != input_list); - - for (section = output_bfd->sections; - section != NULL; - section = section->next) - { - /* FIXME: This is a bit of hack. Currently our .ctors and .dtors - * have PC relative relocs in them but no code flag set. */ - if (((section->flags & SEC_CODE) != 0) || - strcmp(".ctors", section->name) || - strcmp(".dtors", section->name)) - input_list[section->index] = NULL; - } - - return 1; -} - -/* The linker repeatedly calls this function for each input section, - in the order that input sections are linked into output sections. - Build lists of input sections to determine groupings between which - we may insert linker stubs. */ -void -nios2_elf32_next_input_section (struct bfd_link_info *info, asection *isec) -{ - struct elf32_nios2_link_hash_table *htab = elf32_nios2_hash_table (info); - - if (isec->output_section->index <= htab->top_index) - { - asection **list = htab->input_list + isec->output_section->index; - if (*list != bfd_abs_section_ptr) - { - /* Steal the last_sec pointer for our list. - This happens to make the list in reverse order, - which is what we want. */ - htab->stub_group[isec->id].last_sec = *list; - *list = isec; - } - } -} - -/* Segment mask for CALL26 relocation relaxation. */ -#define CALL26_SEGMENT(x) ((x) & 0xf0000000) - -/* Fudge factor for approximate maximum size of all stubs that might - be inserted by the linker. This does not actually limit the number - of stubs that might be inserted, and only affects strategy for grouping - and placement of stubs. Perhaps this should be computed based on number - of relocations seen, or be specifiable on the command line. */ -#define MAX_STUB_SECTION_SIZE 0xffff - -/* See whether we can group stub sections together. Grouping stub - sections may result in fewer stubs. More importantly, we need to - put all .init* and .fini* stubs at the end of the .init or - .fini output sections respectively, because glibc splits the - _init and _fini functions into multiple parts. Putting a stub in - the middle of a function is not a good idea. - Rather than computing groups of a maximum fixed size, for Nios II - CALL26 relaxation it makes more sense to compute the groups based on - sections that fit within a 256MB address segment. Also do not allow - a group to span more than one output section, since different output - sections might correspond to different memory banks on a bare-metal - target, etc. */ -static void -group_sections (struct elf32_nios2_link_hash_table *htab) -{ - asection **list = htab->input_list + htab->top_index; - do - { - /* The list is in reverse order so we'll search backwards looking - for the first section that begins in the same memory segment, - marking sections along the way to point at the tail for this - group. */ - asection *tail = *list; - if (tail == bfd_abs_section_ptr) - continue; - while (tail != NULL) - { - bfd_vma start = tail->output_section->vma + tail->output_offset; - bfd_vma end = start + tail->size; - bfd_vma segment = CALL26_SEGMENT (end); - asection *prev; - - if (segment != CALL26_SEGMENT (start) - || segment != CALL26_SEGMENT (end + MAX_STUB_SECTION_SIZE)) - /* This section spans more than one memory segment, or is - close enough to the end of the segment that adding stub - sections before it might cause it to move so that it - spans memory segments, or that stubs added at the end of - this group might overflow into the next memory segment. - Put it in a group by itself to localize the effects. */ - { - prev = htab->stub_group[tail->id].last_sec; - htab->stub_group[tail->id].last_sec = tail; - htab->stub_group[tail->id].first_sec = tail; - } - else - /* Collect more sections for this group. */ - { - asection *curr, *first; - for (curr = tail; ; curr = prev) - { - prev = htab->stub_group[curr->id].last_sec; - if (!prev - || tail->output_section != prev->output_section - || (CALL26_SEGMENT (prev->output_section->vma - + prev->output_offset) - != segment)) - break; - } - first = curr; - for (curr = tail; ; curr = prev) - { - prev = htab->stub_group[curr->id].last_sec; - htab->stub_group[curr->id].last_sec = tail; - htab->stub_group[curr->id].first_sec = first; - if (curr == first) - break; - } - } - - /* Reset tail for the next group. */ - tail = prev; - } - } - while (list-- != htab->input_list); - free (htab->input_list); -} - -/* Determine the type of stub needed, if any, for a call. */ -static enum elf32_nios2_stub_type -nios2_type_of_stub (asection *input_sec, - const Elf_Internal_Rela *rel, - struct elf32_nios2_link_hash_entry *hh, - struct elf32_nios2_link_hash_table *htab, - bfd_vma destination, - struct bfd_link_info *info ATTRIBUTE_UNUSED) -{ - bfd_vma location, segment, start, end; - asection *s0, *s1, *s; - - if (hh != NULL && - !(hh->root.root.type == bfd_link_hash_defined - || hh->root.root.type == bfd_link_hash_defweak)) - return nios2_stub_none; - - /* Determine where the call point is. */ - location = (input_sec->output_section->vma - + input_sec->output_offset + rel->r_offset); - segment = CALL26_SEGMENT (location); - - /* Nios II CALL and JMPI instructions can transfer control to addresses - within the same 256MB segment as the PC. */ - if (segment == CALL26_SEGMENT (destination)) - return nios2_stub_none; - - /* Find the start and end addresses of the stub group. Also account for - any already-created stub sections for this group. Note that for stubs - in the end section, only the first instruction of the last stub - (12 bytes long) needs to be within range. */ - s0 = htab->stub_group[input_sec->id].first_sec; - s = htab->stub_group[s0->id].first_stub_sec; - if (s != NULL && s->size > 0) - start = s->output_section->vma + s->output_offset; - else - start = s0->output_section->vma + s0->output_offset; - - s1 = htab->stub_group[input_sec->id].last_sec; - s = htab->stub_group[s1->id].last_stub_sec; - if (s != NULL && s->size > 0) - end = s->output_section->vma + s->output_offset + s->size - 8; - else - end = s1->output_section->vma + s1->output_offset + s1->size; - - BFD_ASSERT (start < end); - BFD_ASSERT (start <= location); - BFD_ASSERT (location < end); - - /* Put stubs at the end of the group unless that is not a valid - location and the beginning of the group is. It might be that - neither the beginning nor end works if we have an input section - so large that it spans multiple segment boundaries. In that - case, punt; the end result will be a relocation overflow error no - matter what we do here. - - Note that adding stubs pushes up the addresses of all subsequent - sections, so that stubs allocated on one pass through the - relaxation loop may not be valid on the next pass. (E.g., we may - allocate a stub at the beginning of the section on one pass and - find that the call site has been bumped into the next memory - segment on the next pass.) The important thing to note is that - we never try to reclaim the space allocated to such unused stubs, - so code size and section addresses can only increase with each - iteration. Accounting for the start and end addresses of the - already-created stub sections ensures that when the algorithm - converges, it converges accurately, with the entire appropriate - stub section accessible from the call site and not just the - address at the start or end of the stub group proper. */ - - if (segment == CALL26_SEGMENT (end)) - return nios2_stub_call26_after; - else if (segment == CALL26_SEGMENT (start)) - return nios2_stub_call26_before; - else - /* Perhaps this should be a dedicated error code. */ - return nios2_stub_none; -} - -static bool -nios2_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg ATTRIBUTE_UNUSED) -{ - struct elf32_nios2_stub_hash_entry *hsh - = (struct elf32_nios2_stub_hash_entry *) gen_entry; - asection *stub_sec = hsh->stub_sec; - bfd_vma sym_value; - struct bfd_link_info *info; - - info = (struct bfd_link_info *) in_arg; - - /* Fail if the target section could not be assigned to an output - section. The user should fix his linker script. */ - if (hsh->target_section->output_section == NULL - && info->non_contiguous_regions) - info->callbacks->einfo (_("%F%P: Could not assign `%pA' to an output section. " - "Retry without --enable-non-contiguous-regions.\n"), - hsh->target_section); - - /* Make a note of the offset within the stubs for this entry. */ - hsh->stub_offset = stub_sec->size; - - switch (hsh->stub_type) - { - case nios2_stub_call26_before: - case nios2_stub_call26_after: - /* A call26 stub looks like: - orhi at, %hiadj(dest) - addi at, at, %lo(dest) - jmp at - Note that call/jmpi instructions can't be used in PIC code - so there is no reason for the stub to be PIC, either. */ - sym_value = (hsh->target_value - + hsh->target_section->output_offset - + hsh->target_section->output_section->vma - + hsh->addend); - - nios2_elf32_install_data (stub_sec, nios2_call26_stub_entry, - hsh->stub_offset, 3); - nios2_elf32_install_imm16 (stub_sec, hsh->stub_offset, - hiadj (sym_value)); - nios2_elf32_install_imm16 (stub_sec, hsh->stub_offset + 4, - sym_value); - stub_sec->size += 12; - break; - default: - BFD_FAIL (); - return false; - } - - return true; -} - -/* As above, but don't actually build the stub. Just bump offset so - we know stub section sizes. */ -static bool -nios2_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg ATTRIBUTE_UNUSED) -{ - struct elf32_nios2_stub_hash_entry *hsh - = (struct elf32_nios2_stub_hash_entry *) gen_entry; - - switch (hsh->stub_type) - { - case nios2_stub_call26_before: - case nios2_stub_call26_after: - hsh->stub_sec->size += 12; - break; - default: - BFD_FAIL (); - return false; - } - return true; -} - -/* Read in all local syms for all input bfds. - Returns -1 on error, 0 otherwise. */ - -static int -get_local_syms (bfd *output_bfd ATTRIBUTE_UNUSED, bfd *input_bfd, - struct bfd_link_info *info) -{ - unsigned int bfd_indx; - Elf_Internal_Sym *local_syms, **all_local_syms; - struct elf32_nios2_link_hash_table *htab = elf32_nios2_hash_table (info); - - /* We want to read in symbol extension records only once. To do this - we need to read in the local symbols in parallel and save them for - later use; so hold pointers to the local symbols in an array. */ - size_t amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; - all_local_syms = bfd_zmalloc (amt); - htab->all_local_syms = all_local_syms; - if (all_local_syms == NULL) - return -1; - - /* Walk over all the input BFDs, swapping in local symbols. */ - for (bfd_indx = 0; - input_bfd != NULL; - input_bfd = input_bfd->link.next, bfd_indx++) - { - Elf_Internal_Shdr *symtab_hdr; - - /* We'll need the symbol table in a second. */ - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - if (symtab_hdr->sh_info == 0) - continue; - - /* We need an array of the local symbols attached to the input bfd. */ - local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; - if (local_syms == NULL) - { - local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, - symtab_hdr->sh_info, 0, - NULL, NULL, NULL); - /* Cache them for elf_link_input_bfd. */ - symtab_hdr->contents = (unsigned char *) local_syms; - } - if (local_syms == NULL) - return -1; - - all_local_syms[bfd_indx] = local_syms; - } - - return 0; -} - -/* Determine and set the size of the stub section for a final link. */ -bool -nios2_elf32_size_stubs (bfd *output_bfd, bfd *stub_bfd, - struct bfd_link_info *info, - asection *(*add_stub_section) (const char *, - asection *, bool), - void (*layout_sections_again) (void)) -{ - bool stub_changed = false; - struct elf32_nios2_link_hash_table *htab = elf32_nios2_hash_table (info); - - /* Stash our params away. */ - htab->stub_bfd = stub_bfd; - htab->add_stub_section = add_stub_section; - htab->layout_sections_again = layout_sections_again; - - /* FIXME: We only compute the section groups once. This could cause - problems if adding a large stub section causes following sections, - or parts of them, to move into another segment. However, this seems - to be consistent with the way other back ends handle this.... */ - group_sections (htab); - - if (get_local_syms (output_bfd, info->input_bfds, info)) - { - if (htab->all_local_syms) - goto error_ret_free_local; - return false; - } - - while (1) - { - bfd *input_bfd; - unsigned int bfd_indx; - asection *stub_sec; - - for (input_bfd = info->input_bfds, bfd_indx = 0; - input_bfd != NULL; - input_bfd = input_bfd->link.next, bfd_indx++) - { - Elf_Internal_Shdr *symtab_hdr; - asection *section; - Elf_Internal_Sym *local_syms; - - /* We'll need the symbol table in a second. */ - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - if (symtab_hdr->sh_info == 0) - continue; - - local_syms = htab->all_local_syms[bfd_indx]; - - /* Walk over each section attached to the input bfd. */ - for (section = input_bfd->sections; - section != NULL; - section = section->next) - { - Elf_Internal_Rela *internal_relocs, *irelaend, *irela; - - /* If there aren't any relocs, then there's nothing more - to do. */ - if ((section->flags & SEC_RELOC) == 0 - || section->reloc_count == 0) - continue; - - /* If this section is a link-once section that will be - discarded, then don't create any stubs. */ - if (section->output_section == NULL - || section->output_section->owner != output_bfd) - continue; - - /* Get the relocs. */ - internal_relocs - = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, - info->keep_memory); - if (internal_relocs == NULL) - goto error_ret_free_local; - - /* Now examine each relocation. */ - irela = internal_relocs; - irelaend = irela + section->reloc_count; - for (; irela < irelaend; irela++) - { - unsigned int r_type, r_indx; - enum elf32_nios2_stub_type stub_type; - struct elf32_nios2_stub_hash_entry *hsh; - asection *sym_sec; - bfd_vma sym_value; - bfd_vma destination; - struct elf32_nios2_link_hash_entry *hh; - char *stub_name; - const asection *id_sec; - - r_type = ELF32_R_TYPE (irela->r_info); - r_indx = ELF32_R_SYM (irela->r_info); - - if (r_type >= (unsigned int) R_NIOS2_ILLEGAL) - { - bfd_set_error (bfd_error_bad_value); - error_ret_free_internal: - if (elf_section_data (section)->relocs == NULL) - free (internal_relocs); - goto error_ret_free_local; - } - - /* Only look for stubs on CALL and JMPI instructions. */ - if (r_type != (unsigned int) R_NIOS2_CALL26) - continue; - - /* Now determine the call target, its name, value, - section. */ - sym_sec = NULL; - sym_value = 0; - destination = 0; - hh = NULL; - if (r_indx < symtab_hdr->sh_info) - { - /* It's a local symbol. */ - Elf_Internal_Sym *sym; - Elf_Internal_Shdr *hdr; - unsigned int shndx; - - sym = local_syms + r_indx; - if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) - sym_value = sym->st_value; - shndx = sym->st_shndx; - if (shndx < elf_numsections (input_bfd)) - { - hdr = elf_elfsections (input_bfd)[shndx]; - sym_sec = hdr->bfd_section; - destination = (sym_value + irela->r_addend - + sym_sec->output_offset - + sym_sec->output_section->vma); - } - } - else - { - /* It's an external symbol. */ - int e_indx; - - e_indx = r_indx - symtab_hdr->sh_info; - hh = ((struct elf32_nios2_link_hash_entry *) - elf_sym_hashes (input_bfd)[e_indx]); - - while (hh->root.root.type == bfd_link_hash_indirect - || hh->root.root.type == bfd_link_hash_warning) - hh = ((struct elf32_nios2_link_hash_entry *) - hh->root.root.u.i.link); - - if (hh->root.root.type == bfd_link_hash_defined - || hh->root.root.type == bfd_link_hash_defweak) - { - sym_sec = hh->root.root.u.def.section; - sym_value = hh->root.root.u.def.value; - - if (sym_sec->output_section != NULL) - destination = (sym_value + irela->r_addend - + sym_sec->output_offset - + sym_sec->output_section->vma); - else - continue; - } - else if (hh->root.root.type == bfd_link_hash_undefweak) - { - if (! bfd_link_pic (info)) - continue; - } - else if (hh->root.root.type == bfd_link_hash_undefined) - { - if (! (info->unresolved_syms_in_objects == RM_IGNORE - && (ELF_ST_VISIBILITY (hh->root.other) - == STV_DEFAULT))) - continue; - } - else - { - bfd_set_error (bfd_error_bad_value); - goto error_ret_free_internal; - } - } - - /* Determine what (if any) linker stub is needed. */ - stub_type = nios2_type_of_stub (section, irela, hh, htab, - destination, info); - if (stub_type == nios2_stub_none) - continue; - - /* Support for grouping stub sections. */ - if (stub_type == nios2_stub_call26_before) - id_sec = htab->stub_group[section->id].first_sec; - else - id_sec = htab->stub_group[section->id].last_sec; - - /* Get the name of this stub. */ - stub_name = nios2_stub_name (id_sec, sym_sec, hh, irela, - stub_type); - if (!stub_name) - goto error_ret_free_internal; - - hsh = nios2_stub_hash_lookup (&htab->bstab, - stub_name, - false, false); - if (hsh != NULL) - { - /* The proper stub has already been created. */ - free (stub_name); - continue; - } - - hsh = nios2_add_stub (stub_name, section, htab, stub_type); - if (hsh == NULL) - { - free (stub_name); - goto error_ret_free_internal; - } - hsh->target_value = sym_value; - hsh->target_section = sym_sec; - hsh->stub_type = stub_type; - hsh->hh = hh; - hsh->addend = irela->r_addend; - stub_changed = true; - } - - /* We're done with the internal relocs, free them. */ - if (elf_section_data (section)->relocs == NULL) - free (internal_relocs); - } - } - - if (!stub_changed) - break; - - /* OK, we've added some stubs. Find out the new size of the - stub sections. */ - for (stub_sec = htab->stub_bfd->sections; - stub_sec != NULL; - stub_sec = stub_sec->next) - stub_sec->size = 0; - - bfd_hash_traverse (&htab->bstab, nios2_size_one_stub, htab); - - /* Ask the linker to do its stuff. */ - (*htab->layout_sections_again) (); - stub_changed = false; - } - - free (htab->all_local_syms); - return true; - - error_ret_free_local: - free (htab->all_local_syms); - return false; -} - -/* Build all the stubs associated with the current output file. The - stubs are kept in a hash table attached to the main linker hash - table. This function is called via nios2elf_finish in the linker. */ -bool -nios2_elf32_build_stubs (struct bfd_link_info *info) -{ - asection *stub_sec; - struct bfd_hash_table *table; - struct elf32_nios2_link_hash_table *htab; - - htab = elf32_nios2_hash_table (info); - - for (stub_sec = htab->stub_bfd->sections; - stub_sec != NULL; - stub_sec = stub_sec->next) - /* The stub_bfd may contain non-stub sections if it is also the - dynobj. Any such non-stub sections are created with the - SEC_LINKER_CREATED flag set, while stub sections do not - have that flag. Ignore any non-stub sections here. */ - if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) - { - bfd_size_type size; - - /* Allocate memory to hold the linker stubs. */ - size = stub_sec->size; - stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); - if (stub_sec->contents == NULL && size != 0) - return false; - stub_sec->size = 0; - } - - /* Build the stubs as directed by the stub hash table. */ - table = &htab->bstab; - bfd_hash_traverse (table, nios2_build_one_stub, info); - - return true; -} - - -#define is_nios2_elf(bfd) \ - (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ - && elf_object_id (bfd) == NIOS2_ELF_DATA) - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -static bool -nios2_elf32_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) -{ - bfd *obfd = info->output_bfd; - flagword old_flags; - flagword new_flags; - - if (!is_nios2_elf (ibfd) || !is_nios2_elf (obfd)) - return true; - - /* Check if we have the same endianness. */ - if (! _bfd_generic_verify_endian_match (ibfd, info)) - return false; - - new_flags = elf_elfheader (ibfd)->e_flags; - old_flags = elf_elfheader (obfd)->e_flags; - if (!elf_flags_init (obfd)) - { - /* First call, no flags set. */ - elf_flags_init (obfd) = true; - elf_elfheader (obfd)->e_flags = new_flags; - - switch (new_flags) - { - default: - case EF_NIOS2_ARCH_R1: - bfd_default_set_arch_mach (obfd, bfd_arch_nios2, bfd_mach_nios2r1); - break; - case EF_NIOS2_ARCH_R2: - if (bfd_big_endian (ibfd)) - { - _bfd_error_handler - (_("error: %pB: big-endian R2 is not supported"), ibfd); - bfd_set_error (bfd_error_bad_value); - return false; - } - bfd_default_set_arch_mach (obfd, bfd_arch_nios2, bfd_mach_nios2r2); - break; - } - } - - /* Incompatible flags. */ - else if (new_flags != old_flags) - { - /* So far, the only incompatible flags denote incompatible - architectures. */ - _bfd_error_handler - /* xgettext:c-format */ - (_("error: %pB: conflicting CPU architectures %d/%d"), - ibfd, new_flags, old_flags); - bfd_set_error (bfd_error_bad_value); - return false; - } - - /* Merge Tag_compatibility attributes and any common GNU ones. */ - _bfd_elf_merge_object_attributes (ibfd, info); - - return true; -} - -/* Implement bfd_elf32_bfd_reloc_type_lookup: - Given a BFD reloc type, return a howto structure. */ - -static reloc_howto_type * -nios2_elf32_bfd_reloc_type_lookup (bfd *abfd, - bfd_reloc_code_real_type code) -{ - int i; - - for (i = 0; i < (int) ARRAY_SIZE (nios2_reloc_map); ++i) - if (nios2_reloc_map[i].bfd_val == code) - return lookup_howto (nios2_reloc_map[i].elf_val, abfd); - return NULL; -} - -/* Implement bfd_elf32_bfd_reloc_name_lookup: - Given a reloc name, return a howto structure. */ - -static reloc_howto_type * -nios2_elf32_bfd_reloc_name_lookup (bfd *abfd, - const char *r_name) -{ - int i; - reloc_howto_type *howto_tbl; - int howto_tbl_size; - - if (BFD_IS_R2 (abfd)) - { - howto_tbl = elf_nios2_r2_howto_table_rel; - howto_tbl_size = (int) ARRAY_SIZE (elf_nios2_r2_howto_table_rel); - } - else - { - howto_tbl = elf_nios2_r1_howto_table_rel; - howto_tbl_size = (int) ARRAY_SIZE (elf_nios2_r1_howto_table_rel); - } - - for (i = 0; i < howto_tbl_size; i++) - if (howto_tbl[i].name && strcasecmp (howto_tbl[i].name, r_name) == 0) - return howto_tbl + i; - - return NULL; -} - -/* Implement elf_info_to_howto: - Given a ELF32 relocation, fill in a arelent structure. */ - -static bool -nios2_elf32_info_to_howto (bfd *abfd, arelent *cache_ptr, - Elf_Internal_Rela *dst) -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - if ((cache_ptr->howto = lookup_howto (r_type, abfd)) == NULL) - { - /* xgettext:c-format */ - _bfd_error_handler (_("%pB: unsupported relocation type %#x"), - abfd, r_type); - bfd_set_error (bfd_error_bad_value); - return false; - } - return true; -} - -/* Return the base VMA address which should be subtracted from real addresses - when resolving @dtpoff relocation. - This is PT_TLS segment p_vaddr. */ -static bfd_vma -dtpoff_base (struct bfd_link_info *info) -{ - /* If tls_sec is NULL, we should have signalled an error already. */ - if (elf_hash_table (info)->tls_sec == NULL) - return 0; - return elf_hash_table (info)->tls_sec->vma; -} - -/* Return the relocation value for @tpoff relocation - if STT_TLS virtual address is ADDRESS. */ -static bfd_vma -tpoff (struct bfd_link_info *info, bfd_vma address) -{ - struct elf_link_hash_table *htab = elf_hash_table (info); - - /* If tls_sec is NULL, we should have signalled an error already. */ - if (htab->tls_sec == NULL) - return 0; - return address - htab->tls_sec->vma; -} - -/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a - dangerous relocation. */ -static bool -nios2_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp, struct bfd_link_info *info) -{ - - bool gp_found; - struct bfd_hash_entry *h; - struct bfd_link_hash_entry *lh; - - /* If we've already figured out what GP will be, just return it. */ - *pgp = _bfd_get_gp_value (output_bfd); - if (*pgp) - return true; - - h = bfd_hash_lookup (&info->hash->table, "_gp", false, false); - lh = (struct bfd_link_hash_entry *) h; - lookup: - if (lh) - { - switch (lh->type) - { - case bfd_link_hash_undefined: - case bfd_link_hash_undefweak: - case bfd_link_hash_common: - gp_found = false; - break; - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - gp_found = true; - { - asection *sym_sec = lh->u.def.section; - bfd_vma sym_value = lh->u.def.value; - - if (sym_sec->output_section) - sym_value = (sym_value + sym_sec->output_offset - + sym_sec->output_section->vma); - *pgp = sym_value; - } - break; - case bfd_link_hash_indirect: - case bfd_link_hash_warning: - lh = lh->u.i.link; - /* @@FIXME ignoring warning for now */ - goto lookup; - case bfd_link_hash_new: - default: - abort (); - } - } - else - gp_found = false; - - if (!gp_found) - { - /* Only get the error once. */ - *pgp = 4; - _bfd_set_gp_value (output_bfd, *pgp); - return false; - } - - _bfd_set_gp_value (output_bfd, *pgp); - - return true; -} - -/* Retrieve the previously cached _gp pointer, returning bfd_reloc_dangerous - if it's not available as we don't have a link_info pointer available here - to look it up in the output symbol table. We don't need to adjust the - symbol value for an external symbol if we are producing relocatable - output. */ -static bfd_reloc_status_type -nios2_elf_final_gp (bfd *output_bfd, asymbol *symbol, bool relocatable, - char **error_message, bfd_vma *pgp) -{ - if (bfd_is_und_section (symbol->section) && !relocatable) - { - *pgp = 0; - return bfd_reloc_undefined; - } - - *pgp = _bfd_get_gp_value (output_bfd); - if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0)) - { - if (relocatable) - { - /* Make up a value. */ - *pgp = symbol->section->output_section->vma + 0x4000; - _bfd_set_gp_value (output_bfd, *pgp); - } - else - { - *error_message - = (char *) _("global pointer relative relocation when _gp not defined"); - return bfd_reloc_dangerous; - } - } - - return bfd_reloc_ok; -} - -/* Do the relocations that require special handling. */ -static bfd_reloc_status_type -nios2_elf32_do_hi16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - symbol_value = symbol_value + addend; - addend = 0; - symbol_value = (symbol_value >> 16) & 0xffff; - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_lo16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - symbol_value = symbol_value + addend; - addend = 0; - symbol_value = symbol_value & 0xffff; - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_hiadj16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - symbol_value = symbol_value + addend; - addend = 0; - symbol_value = hiadj(symbol_value); - return _bfd_final_link_relocate (howto, abfd, input_section, data, offset, - symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_pcrel_lo16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - symbol_value = symbol_value + addend; - addend = 0; - symbol_value = symbol_value & 0xffff; - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_pcrel_hiadj16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - symbol_value = symbol_value + addend; - symbol_value -= (input_section->output_section->vma - + input_section->output_offset); - symbol_value -= offset; - addend = 0; - symbol_value = hiadj(symbol_value); - return _bfd_final_link_relocate (howto, abfd, input_section, data, offset, - symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_pcrel16_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - /* NIOS2 pc relative relocations are relative to the next 32-bit instruction - so we need to subtract 4 before doing a final_link_relocate. */ - symbol_value = symbol_value + addend - 4; - addend = 0; - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_call26_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - /* Check that the relocation is in the same page as the current address. */ - if (CALL26_SEGMENT (symbol_value + addend) - != CALL26_SEGMENT (input_section->output_section->vma - + input_section->output_offset - + offset)) - return bfd_reloc_overflow; - - /* Check that the target address is correctly aligned on a 4-byte - boundary. */ - if ((symbol_value + addend) & 0x3) - return bfd_reloc_overflow; - - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_gprel_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - /* Because we need the output_bfd, the special handling is done - in nios2_elf32_relocate_section or in nios2_elf32_gprel_relocate. */ - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_value, addend); -} - -static bfd_reloc_status_type -nios2_elf32_do_ujmp_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - bfd_vma symbol_lo16, symbol_hi16; - bfd_reloc_status_type r; - symbol_value = symbol_value + addend; - addend = 0; - symbol_hi16 = (symbol_value >> 16) & 0xffff; - symbol_lo16 = symbol_value & 0xffff; - - r = _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_hi16, addend); - - if (r == bfd_reloc_ok) - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset + 4, symbol_lo16, addend); - - return r; -} - -static bfd_reloc_status_type -nios2_elf32_do_cjmp_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - bfd_vma symbol_lo16, symbol_hi16; - bfd_reloc_status_type r; - symbol_value = symbol_value + addend; - addend = 0; - symbol_hi16 = (symbol_value >> 16) & 0xffff; - symbol_lo16 = symbol_value & 0xffff; - - r = _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_hi16, addend); - - if (r == bfd_reloc_ok) - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset + 4, symbol_lo16, addend); - - return r; -} - -static bfd_reloc_status_type -nios2_elf32_do_callr_relocate (bfd *abfd, reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, bfd_vma offset, - bfd_vma symbol_value, bfd_vma addend) -{ - bfd_vma symbol_lo16, symbol_hi16; - bfd_reloc_status_type r; - symbol_value = symbol_value + addend; - addend = 0; - symbol_hi16 = (symbol_value >> 16) & 0xffff; - symbol_lo16 = symbol_value & 0xffff; - - r = _bfd_final_link_relocate (howto, abfd, input_section, - data, offset, symbol_hi16, addend); - - if (r == bfd_reloc_ok) - return _bfd_final_link_relocate (howto, abfd, input_section, - data, offset + 4, symbol_lo16, addend); - - return r; -} - -/* HOWTO handlers for relocations that require special handling. */ - -/* This is for relocations used only when relaxing to ensure - changes in size of section don't screw up .align. */ -static bfd_reloc_status_type -nios2_elf32_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, - asymbol *symbol ATTRIBUTE_UNUSED, - void *data ATTRIBUTE_UNUSED, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - if (output_bfd != NULL) - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; -} - -static bfd_reloc_status_type -nios2_elf32_hi16_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_hi16_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_lo16_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_lo16_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_hiadj16_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_hiadj16_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_pcrel_lo16_relocate (bfd *abfd, arelent *reloc_entry, - asymbol *symbol, void *data, - asection *input_section, bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_pcrel_lo16_relocate ( - abfd, reloc_entry->howto, input_section, data, reloc_entry->address, - (symbol->value + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_pcrel_hiadj16_relocate (bfd *abfd, arelent *reloc_entry, - asymbol *symbol, void *data, - asection *input_section, bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_pcrel_hiadj16_relocate ( - abfd, reloc_entry->howto, input_section, data, reloc_entry->address, - (symbol->value + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_pcrel16_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_pcrel16_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_call26_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_call26_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_gprel_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, char **msg) -{ - bfd_vma relocation; - bfd_vma gp; - bfd_reloc_status_type r; - - - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - relocation = (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset); - - /* This assumes we've already cached the _gp symbol. */ - r = nios2_elf_final_gp (abfd, symbol, false, msg, &gp); - if (r == bfd_reloc_ok) - { - relocation = relocation + reloc_entry->addend - gp; - reloc_entry->addend = 0; - if ((signed) relocation < -32768 || (signed) relocation > 32767) - { - *msg = _("global pointer relative address out of range"); - r = bfd_reloc_outofrange; - } - else - r = nios2_elf32_do_gprel_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - relocation, reloc_entry->addend); - } - - return r; -} - -static bfd_reloc_status_type -nios2_elf32_ujmp_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, char **msg ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_ujmp_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_cjmp_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, char **msg ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_cjmp_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -static bfd_reloc_status_type -nios2_elf32_callr_relocate (bfd *abfd, arelent *reloc_entry, asymbol *symbol, - void *data, asection *input_section, - bfd *output_bfd, char **msg ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return nios2_elf32_do_callr_relocate (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - - -/* Implement elf_backend_relocate_section. */ -static int -nios2_elf32_relocate_section (bfd *output_bfd, - struct bfd_link_info *info, - bfd *input_bfd, - asection *input_section, - bfd_byte *contents, - Elf_Internal_Rela *relocs, - Elf_Internal_Sym *local_syms, - asection **local_sections) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; - struct elf32_nios2_link_hash_table *htab; - asection *sgot; - asection *splt; - asection *sreloc = NULL; - bfd_vma *local_got_offsets; - bfd_vma got_base; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - relend = relocs + input_section->reloc_count; - - htab = elf32_nios2_hash_table (info); - sgot = htab->root.sgot; - splt = htab->root.splt; - local_got_offsets = elf_local_got_offsets (input_bfd); - - if (htab->h_gp_got == NULL) - got_base = 0; - else - got_base = htab->h_gp_got->root.u.def.value; - - for (rel = relocs; rel < relend; rel++) - { - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - struct elf32_nios2_link_hash_entry *eh; - bfd_vma relocation; - bfd_vma gp; - bfd_reloc_status_type r = bfd_reloc_ok; - const char *name = NULL; - int r_type; - const char *format; - char *msg = NULL; - bool unresolved_reloc; - bfd_vma off; - int use_plt; - - r_type = ELF32_R_TYPE (rel->r_info); - r_symndx = ELF32_R_SYM (rel->r_info); - - howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info), output_bfd); - h = NULL; - sym = NULL; - sec = NULL; - - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); - } - else - { - bool warned, ignored; - - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, relocation, - unresolved_reloc, warned, ignored); - } - - if (sec && discarded_section (sec)) - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - - /* Nothing more to do unless this is a final link. */ - if (bfd_link_relocatable (info)) - continue; - - if (howto) - { - bool resolved_to_zero; - - resolved_to_zero = (h != NULL - && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); - switch (howto->type) - { - case R_NIOS2_HI16: - r = nios2_elf32_do_hi16_relocate (input_bfd, howto, - input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - case R_NIOS2_LO16: - r = nios2_elf32_do_lo16_relocate (input_bfd, howto, - input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - case R_NIOS2_PCREL_LO: - r = nios2_elf32_do_pcrel_lo16_relocate (input_bfd, howto, - input_section, - contents, - rel->r_offset, - relocation, - rel->r_addend); - break; - case R_NIOS2_HIADJ16: - r = nios2_elf32_do_hiadj16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_PCREL_HA: - r = nios2_elf32_do_pcrel_hiadj16_relocate (input_bfd, howto, - input_section, - contents, - rel->r_offset, - relocation, - rel->r_addend); - break; - case R_NIOS2_PCREL16: - r = nios2_elf32_do_pcrel16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_GPREL: - /* Turns an absolute address into a gp-relative address. */ - if (!nios2_elf_assign_gp (output_bfd, &gp, info)) - { - bfd_vma reloc_address; - - if (sec && sec->output_section) - reloc_address = (sec->output_section->vma - + sec->output_offset - + rel->r_offset); - else - reloc_address = 0; - - format = _("global pointer relative relocation at address " - "%#" PRIx64 " when _gp not defined\n"); - msg = bfd_asprintf (format, (uint64_t) reloc_address); - r = bfd_reloc_dangerous; - } - else - { - bfd_vma symbol_address = rel->r_addend + relocation; - relocation = symbol_address - gp; - rel->r_addend = 0; - if (((signed) relocation < -32768 - || (signed) relocation > 32767) - && (!h - || h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)) - { - if (h) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, - sym->st_name)); - if (name == NULL || *name == '\0') - name = bfd_section_name (sec); - } - /* xgettext:c-format */ - format = _("unable to reach %s (at %#" PRIx64 ") from " - "the global pointer (at %#" PRIx64 ") " - "because the offset (%" PRId64 ") is out of " - "the allowed range, -32678 to 32767\n" ); - msg = bfd_asprintf (format, name, - (uint64_t) symbol_address, - (uint64_t) gp, - (int64_t) relocation); - r = bfd_reloc_outofrange; - } - else - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - } - break; - case R_NIOS2_UJMP: - r = nios2_elf32_do_ujmp_relocate (input_bfd, howto, - input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - case R_NIOS2_CJMP: - r = nios2_elf32_do_cjmp_relocate (input_bfd, howto, - input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - case R_NIOS2_CALLR: - r = nios2_elf32_do_callr_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_CALL26: - case R_NIOS2_CALL26_NOAT: - /* If we have a call to an undefined weak symbol, we just want - to stuff a zero in the bits of the call instruction and - bypass the normal call26 relocation handling, because it'll - diagnose an overflow error if address 0 isn't in the same - 256MB segment as the call site. Presumably the call - should be guarded by a null check anyway. */ - if (h != NULL && h->root.type == bfd_link_hash_undefweak) - { - BFD_ASSERT (relocation == 0 && rel->r_addend == 0); - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - } - /* Handle relocations which should use the PLT entry. - NIOS2_BFD_RELOC_32 relocations will use the symbol's value, - which may point to a PLT entry, but we don't need to handle - that here. If we created a PLT entry, all branches in this - object should go to it. */ - if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1) - { - /* If we've created a .plt section, and assigned a PLT entry - to this function, it should not be known to bind locally. - If it were, we would have cleared the PLT entry. */ - BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h)); - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt.offset); - - unresolved_reloc = false; - } - /* Detect R_NIOS2_CALL26 relocations that would overflow the - 256MB segment. Replace the target with a reference to a - trampoline instead. - Note that htab->stub_group is null if relaxation has been - disabled by the --no-relax linker command-line option, so - we can use that to skip this processing entirely. */ - if (howto->type == R_NIOS2_CALL26 && htab->stub_group) - { - bfd_vma dest = relocation + rel->r_addend; - enum elf32_nios2_stub_type stub_type; - - eh = (struct elf32_nios2_link_hash_entry *)h; - stub_type = nios2_type_of_stub (input_section, rel, eh, - htab, dest, NULL); - - if (stub_type != nios2_stub_none) - { - struct elf32_nios2_stub_hash_entry *hsh; - - hsh = nios2_get_stub_entry (input_section, sec, - eh, rel, htab, stub_type); - if (hsh == NULL) - { - r = bfd_reloc_undefined; - break; - } - - dest = (hsh->stub_offset - + hsh->stub_sec->output_offset - + hsh->stub_sec->output_section->vma); - r = nios2_elf32_do_call26_relocate (input_bfd, howto, - input_section, - contents, - rel->r_offset, - dest, 0); - break; - } - } - - /* Normal case. */ - r = nios2_elf32_do_call26_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_ALIGN: - r = bfd_reloc_ok; - /* For symmetry this would be - r = nios2_elf32_do_ignore_reloc (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - but do_ignore_reloc would do no more than return - bfd_reloc_ok. */ - break; - - case R_NIOS2_GOT16: - case R_NIOS2_CALL16: - case R_NIOS2_GOT_LO: - case R_NIOS2_GOT_HA: - case R_NIOS2_CALL_LO: - case R_NIOS2_CALL_HA: - /* Relocation is to the entry for this symbol in the - global offset table. */ - if (sgot == NULL) - { - r = bfd_reloc_notsupported; - break; - } - - use_plt = 0; - - if (h != NULL) - { - bool dyn; - - eh = (struct elf32_nios2_link_hash_entry *)h; - use_plt = (eh->got_types_used == CALL_USED - && h->plt.offset != (bfd_vma) -1); - - off = h->got.offset; - BFD_ASSERT (off != (bfd_vma) -1); - dyn = htab->root.dynamic_sections_created; - if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, - bfd_link_pic (info), - h) - || (bfd_link_pic (info) - && SYMBOL_REFERENCES_LOCAL (info, h)) - || ((ELF_ST_VISIBILITY (h->other) - || resolved_to_zero) - && h->root.type == bfd_link_hash_undefweak)) - { - /* This is actually a static link, or it is a -Bsymbolic - link and the symbol is defined locally. We must - initialize this entry in the global offset table. - Since the offset must always be a multiple of 4, we - use the least significant bit to record whether we - have initialized it already. - - When doing a dynamic link, we create a .rela.got - relocation entry to initialize the value. This is - done in the finish_dynamic_symbol routine. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, - sgot->contents + off); - h->got.offset |= 1; - } - } - else - unresolved_reloc = false; - } - else - { - BFD_ASSERT (local_got_offsets != NULL - && local_got_offsets[r_symndx] != (bfd_vma) -1); - - off = local_got_offsets[r_symndx]; - - /* The offset must always be a multiple of 4. We use the - least significant bit to record whether we have already - generated the necessary reloc. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, - sgot->contents + off); - - if (bfd_link_pic (info)) - { - asection *srelgot; - Elf_Internal_Rela outrel; - bfd_byte *loc; - - srelgot = htab->root.srelgot; - BFD_ASSERT (srelgot != NULL); - - outrel.r_addend = relocation; - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_NIOS2_RELATIVE); - loc = srelgot->contents; - loc += (srelgot->reloc_count++ * - sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - - local_got_offsets[r_symndx] |= 1; - } - } - - if (use_plt && bfd_link_pic (info)) - { - off = ((h->plt.offset - 24) / 12 + 3) * 4; - relocation = (htab->root.sgotplt->output_offset + off - - got_base); - } - else - relocation = sgot->output_offset + off - got_base; - - /* This relocation does not use the addend. */ - rel->r_addend = 0; - - switch (howto->type) - { - case R_NIOS2_GOT_LO: - case R_NIOS2_CALL_LO: - r = nios2_elf32_do_lo16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_GOT_HA: - case R_NIOS2_CALL_HA: - r = nios2_elf32_do_hiadj16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, - relocation, - rel->r_addend); - break; - default: - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - } - break; - - case R_NIOS2_GOTOFF_LO: - case R_NIOS2_GOTOFF_HA: - case R_NIOS2_GOTOFF: - /* Relocation is relative to the global offset table pointer. */ - - BFD_ASSERT (sgot != NULL); - if (sgot == NULL) - { - r = bfd_reloc_notsupported; - break; - } - - /* Note that sgot->output_offset is not involved in this - calculation. We always want the start of .got. */ - relocation -= sgot->output_section->vma; - - /* Now we adjust the relocation to be relative to the GOT pointer - (the _gp_got symbol), which possibly contains the 0x8000 bias. */ - relocation -= got_base; - - switch (howto->type) - { - case R_NIOS2_GOTOFF_LO: - r = nios2_elf32_do_lo16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - case R_NIOS2_GOTOFF_HA: - r = nios2_elf32_do_hiadj16_relocate (input_bfd, howto, - input_section, contents, - rel->r_offset, - relocation, - rel->r_addend); - break; - default: - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - } - break; - - case R_NIOS2_TLS_LDO16: - relocation -= dtpoff_base (info) + DTP_OFFSET; - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - case R_NIOS2_TLS_LDM16: - if (htab->root.sgot == NULL) - abort (); - - off = htab->tls_ldm_got.offset; - - if ((off & 1) != 0) - off &= ~1; - else - { - /* If we don't know the module number, create a relocation - for it. */ - if (bfd_link_pic (info)) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - - if (htab->root.srelgot == NULL) - abort (); - - outrel.r_addend = 0; - outrel.r_offset = (htab->root.sgot->output_section->vma - + htab->root.sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_NIOS2_TLS_DTPMOD); - - loc = htab->root.srelgot->contents; - loc += (htab->root.srelgot->reloc_count++ - * sizeof (Elf32_External_Rela)); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - } - else - bfd_put_32 (output_bfd, 1, - htab->root.sgot->contents + off); - - htab->tls_ldm_got.offset |= 1; - } - - relocation = htab->root.sgot->output_offset + off - got_base; - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - - break; - case R_NIOS2_TLS_GD16: - case R_NIOS2_TLS_IE16: - { - int indx; - char tls_type; - - if (htab->root.sgot == NULL) - abort (); - - indx = 0; - if (h != NULL) - { - bool dyn; - dyn = htab->root.dynamic_sections_created; - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, - bfd_link_pic (info), - h) - && (!bfd_link_pic (info) - || !SYMBOL_REFERENCES_LOCAL (info, h))) - { - unresolved_reloc = false; - indx = h->dynindx; - } - off = h->got.offset; - tls_type = (((struct elf32_nios2_link_hash_entry *) h) - ->tls_type); - } - else - { - if (local_got_offsets == NULL) - abort (); - off = local_got_offsets[r_symndx]; - tls_type = (elf32_nios2_local_got_tls_type (input_bfd) - [r_symndx]); - } - - if (tls_type == GOT_UNKNOWN) - abort (); - - if ((off & 1) != 0) - off &= ~1; - else - { - bool need_relocs = false; - Elf_Internal_Rela outrel; - bfd_byte *loc = NULL; - int cur_off = off; - - /* The GOT entries have not been initialized yet. Do it - now, and emit any relocations. If both an IE GOT and a - GD GOT are necessary, we emit the GD first. */ - - if ((bfd_link_pic (info) || indx != 0) - && (h == NULL - || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && !resolved_to_zero) - || h->root.type != bfd_link_hash_undefweak)) - { - need_relocs = true; - if (htab->root.srelgot == NULL) - abort (); - loc = htab->root.srelgot->contents; - loc += (htab->root.srelgot->reloc_count * - sizeof (Elf32_External_Rela)); - } - - if (tls_type & GOT_TLS_GD) - { - if (need_relocs) - { - outrel.r_addend = 0; - outrel.r_offset = (htab->root.sgot->output_section->vma - + htab->root.sgot->output_offset - + cur_off); - outrel.r_info = ELF32_R_INFO (indx, - R_NIOS2_TLS_DTPMOD); - - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - loc); - htab->root.srelgot->reloc_count++; - loc += sizeof (Elf32_External_Rela); - - if (indx == 0) - bfd_put_32 (output_bfd, - (relocation - dtpoff_base (info) - - DTP_OFFSET), - htab->root.sgot->contents + cur_off + 4); - else - { - outrel.r_addend = 0; - outrel.r_info = ELF32_R_INFO (indx, - R_NIOS2_TLS_DTPREL); - outrel.r_offset += 4; - - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - loc); - htab->root.srelgot->reloc_count++; - loc += sizeof (Elf32_External_Rela); - } - } - else - { - /* If we are not emitting relocations for a - general dynamic reference, then we must be in a - static link or an executable link with the - symbol binding locally. Mark it as belonging - to module 1, the executable. */ - bfd_put_32 (output_bfd, 1, - htab->root.sgot->contents + cur_off); - bfd_put_32 (output_bfd, (relocation - - dtpoff_base (info) - - DTP_OFFSET), - htab->root.sgot->contents + cur_off + 4); - } - - cur_off += 8; - } - - if (tls_type & GOT_TLS_IE) - { - if (need_relocs) - { - if (indx == 0) - outrel.r_addend = (relocation - - dtpoff_base (info)); - else - outrel.r_addend = 0; - outrel.r_offset = (htab->root.sgot->output_section->vma - + htab->root.sgot->output_offset - + cur_off); - outrel.r_info = ELF32_R_INFO (indx, - R_NIOS2_TLS_TPREL); - - bfd_elf32_swap_reloca_out (output_bfd, &outrel, - loc); - htab->root.srelgot->reloc_count++; - loc += sizeof (Elf32_External_Rela); - } - else - bfd_put_32 (output_bfd, (tpoff (info, relocation) - - TP_OFFSET), - htab->root.sgot->contents + cur_off); - cur_off += 4; - } - - if (h != NULL) - h->got.offset |= 1; - else - local_got_offsets[r_symndx] |= 1; - } - - if ((tls_type & GOT_TLS_GD) && r_type != R_NIOS2_TLS_GD16) - off += 8; - relocation = htab->root.sgot->output_offset + off - got_base; - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - } - - break; - case R_NIOS2_TLS_LE16: - if (bfd_link_dll (info)) - { - _bfd_error_handler - /* xgettext:c-format */ - (_("%pB(%pA+%#" PRIx64 "): %s relocation not " - "permitted in shared object"), - input_bfd, input_section, - (uint64_t) rel->r_offset, howto->name); - return false; - } - else - relocation = tpoff (info, relocation) - TP_OFFSET; - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - break; - - case R_NIOS2_BFD_RELOC_32: - if (bfd_link_pic (info) - && (input_section->flags & SEC_ALLOC) != 0 - && (h == NULL - || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && !resolved_to_zero) - || h->root.type != bfd_link_hash_undefweak)) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - bool skip, relocate; - - /* When generating a shared object, these relocations - are copied into the output file to be resolved at run - time. */ - - skip = false; - relocate = false; - - outrel.r_offset - = _bfd_elf_section_offset (output_bfd, info, - input_section, rel->r_offset); - if (outrel.r_offset == (bfd_vma) -1) - skip = true; - else if (outrel.r_offset == (bfd_vma) -2) - skip = true, relocate = true; - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - - if (skip) - memset (&outrel, 0, sizeof outrel); - else if (h != NULL - && h->dynindx != -1 - && (!bfd_link_pic (info) - || !SYMBOLIC_BIND (info, h) - || !h->def_regular)) - { - outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); - outrel.r_addend = rel->r_addend; - } - else - { - /* This symbol is local, or marked to become local. */ - outrel.r_addend = relocation + rel->r_addend; - relocate = true; - outrel.r_info = ELF32_R_INFO (0, R_NIOS2_RELATIVE); - } - - sreloc = elf_section_data (input_section)->sreloc; - if (sreloc == NULL) - abort (); - - loc = sreloc->contents; - loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); - - /* This reloc will be computed at runtime, so there's no - need to do anything now, except for R_NIOS2_BFD_RELOC_32 - relocations that have been turned into - R_NIOS2_RELATIVE. */ - if (!relocate) - break; - } - - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - - case R_NIOS2_TLS_DTPREL: - relocation -= dtpoff_base (info); - /* Fall through. */ - - default: - r = _bfd_final_link_relocate (howto, input_bfd, - input_section, contents, - rel->r_offset, relocation, - rel->r_addend); - break; - } - } - else - r = bfd_reloc_notsupported; - - if (r != bfd_reloc_ok) - { - if (h != NULL) - name = h->root.root.string; - else - { - name = bfd_elf_string_from_elf_section (input_bfd, - symtab_hdr->sh_link, - sym->st_name); - if (name == NULL || *name == '\0') - name = bfd_section_name (sec); - } - - switch (r) - { - case bfd_reloc_overflow: - (*info->callbacks->reloc_overflow) (info, NULL, name, - howto->name, (bfd_vma) 0, - input_bfd, input_section, - rel->r_offset); - break; - - case bfd_reloc_undefined: - (*info->callbacks->undefined_symbol) (info, name, input_bfd, - input_section, - rel->r_offset, true); - break; - - case bfd_reloc_outofrange: - if (msg == NULL) - msg = _("relocation out of range"); - break; - - case bfd_reloc_notsupported: - if (msg == NULL) - msg = _("unsupported relocation"); - break; - - case bfd_reloc_dangerous: - if (msg == NULL) - msg = _("dangerous relocation"); - break; - - default: - if (msg == NULL) - msg = _("unknown error"); - break; - } - - if (msg) - { - (*info->callbacks->warning) (info, msg, name, input_bfd, - input_section, rel->r_offset); - return false; - } - } - } - return true; -} - -/* Implement elf-backend_section_flags: - Convert NIOS2 specific section flags to bfd internal section flags. */ -static bool -nios2_elf32_section_flags (const Elf_Internal_Shdr *hdr) -{ - if (hdr->sh_flags & SHF_NIOS2_GPREL) - hdr->bfd_section->flags |= SEC_SMALL_DATA; - - return true; -} - -/* Implement elf_backend_fake_sections: - Set the correct type for an NIOS2 ELF section. We do this by the - section name, which is a hack, but ought to work. */ -static bool -nios2_elf32_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, - Elf_Internal_Shdr *hdr, asection *sec) -{ - const char *name = bfd_section_name (sec); - - if ((sec->flags & SEC_SMALL_DATA) - || strcmp (name, ".sdata") == 0 - || strcmp (name, ".sbss") == 0 - || strcmp (name, ".lit4") == 0 || strcmp (name, ".lit8") == 0) - hdr->sh_flags |= SHF_NIOS2_GPREL; - - return true; -} - -/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up - shortcuts to them in our hash table. */ -static bool -create_got_section (bfd *dynobj, struct bfd_link_info *info) -{ - struct elf32_nios2_link_hash_table *htab; - struct elf_link_hash_entry *h; - - htab = elf32_nios2_hash_table (info); - - if (! _bfd_elf_create_got_section (dynobj, info)) - return false; - - /* In order for the two loads in .PLTresolve to share the same %hiadj, - _GLOBAL_OFFSET_TABLE_ must be aligned to a 16-byte boundary. */ - if (!bfd_set_section_alignment (htab->root.sgotplt, 4)) - return false; - - /* The Nios II ABI specifies that GOT-relative relocations are relative - to the linker-created symbol _gp_got, rather than using - _GLOBAL_OFFSET_TABLE_ directly. In particular, the latter always - points to the base of the GOT while _gp_got may include a bias. */ - h = _bfd_elf_define_linkage_sym (dynobj, info, htab->root.sgotplt, - "_gp_got"); - htab->h_gp_got = h; - if (h == NULL) - return false; - - return true; -} - -/* Implement elf_backend_create_dynamic_sections: - Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and - .rela.bss sections in DYNOBJ, and set up shortcuts to them in our - hash table. */ -static bool -nios2_elf32_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) -{ - struct elf32_nios2_link_hash_table *htab; - - htab = elf32_nios2_hash_table (info); - if (!htab->root.sgot && !create_got_section (dynobj, info)) - return false; - - if (!_bfd_elf_create_dynamic_sections (dynobj, info)) - return false; - - /* In order for the two loads in a shared object .PLTresolve to share the - same %hiadj, the start of the PLT (as well as the GOT) must be aligned - to a 16-byte boundary. This is because the addresses for these loads - include the -(.plt+4) PIC correction. */ - return bfd_set_section_alignment (htab->root.splt, 4); -} - -/* Implement elf_backend_copy_indirect_symbol: - Copy the extra info we tack onto an elf_link_hash_entry. */ -static void -nios2_elf32_copy_indirect_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *dir, - struct elf_link_hash_entry *ind) -{ - struct elf32_nios2_link_hash_entry *edir, *eind; - - edir = (struct elf32_nios2_link_hash_entry *) dir; - eind = (struct elf32_nios2_link_hash_entry *) ind; - - if (ind->root.type == bfd_link_hash_indirect - && dir->got.refcount <= 0) - { - edir->tls_type = eind->tls_type; - eind->tls_type = GOT_UNKNOWN; - } - - edir->got_types_used |= eind->got_types_used; - - _bfd_elf_link_hash_copy_indirect (info, dir, ind); -} - -/* Set the right machine number for a NIOS2 ELF file. */ - -static bool -nios2_elf32_object_p (bfd *abfd) -{ - unsigned long mach; - - mach = elf_elfheader (abfd)->e_flags; - - switch (mach) - { - default: - case EF_NIOS2_ARCH_R1: - bfd_default_set_arch_mach (abfd, bfd_arch_nios2, bfd_mach_nios2r1); - break; - case EF_NIOS2_ARCH_R2: - bfd_default_set_arch_mach (abfd, bfd_arch_nios2, bfd_mach_nios2r2); - break; - } - - return true; -} - -/* Implement elf_backend_check_relocs: - Look through the relocs for a section during the first phase. */ -static bool -nios2_elf32_check_relocs (bfd *abfd, struct bfd_link_info *info, - asection *sec, const Elf_Internal_Rela *relocs) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - struct elf32_nios2_link_hash_table *htab; - asection *sreloc = NULL; - bfd_signed_vma *local_got_refcounts; - - if (bfd_link_relocatable (info)) - return true; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - - htab = elf32_nios2_hash_table (info); - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - unsigned int r_type; - struct elf_link_hash_entry *h; - unsigned long r_symndx; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - - r_type = ELF32_R_TYPE (rel->r_info); - - switch (r_type) - { - case R_NIOS2_GOT16: - case R_NIOS2_GOT_LO: - case R_NIOS2_GOT_HA: - case R_NIOS2_CALL16: - case R_NIOS2_CALL_LO: - case R_NIOS2_CALL_HA: - case R_NIOS2_TLS_GD16: - case R_NIOS2_TLS_IE16: - /* This symbol requires a global offset table entry. */ - { - int tls_type, old_tls_type; - - switch (r_type) - { - default: - case R_NIOS2_GOT16: - case R_NIOS2_GOT_LO: - case R_NIOS2_GOT_HA: - case R_NIOS2_CALL16: - case R_NIOS2_CALL_LO: - case R_NIOS2_CALL_HA: - tls_type = GOT_NORMAL; - break; - case R_NIOS2_TLS_GD16: - tls_type = GOT_TLS_GD; - break; - case R_NIOS2_TLS_IE16: - tls_type = GOT_TLS_IE; - break; - } - - if (h != NULL) - { - struct elf32_nios2_link_hash_entry *eh - = (struct elf32_nios2_link_hash_entry *)h; - h->got.refcount++; - old_tls_type = elf32_nios2_hash_entry(h)->tls_type; - if (r_type == R_NIOS2_CALL16 - || r_type == R_NIOS2_CALL_LO - || r_type == R_NIOS2_CALL_HA) - { - /* Make sure a plt entry is created for this symbol if - it turns out to be a function defined by a dynamic - object. */ - h->plt.refcount++; - h->needs_plt = 1; - h->type = STT_FUNC; - eh->got_types_used |= CALL_USED; - } - else - eh->got_types_used |= GOT_USED; - } - else - { - /* This is a global offset table entry for a local symbol. */ - if (local_got_refcounts == NULL) - { - bfd_size_type size; - - size = symtab_hdr->sh_info; - size *= (sizeof (bfd_signed_vma) + sizeof (char)); - local_got_refcounts - = ((bfd_signed_vma *) bfd_zalloc (abfd, size)); - if (local_got_refcounts == NULL) - return false; - elf_local_got_refcounts (abfd) = local_got_refcounts; - elf32_nios2_local_got_tls_type (abfd) - = (char *) (local_got_refcounts + symtab_hdr->sh_info); - } - local_got_refcounts[r_symndx]++; - old_tls_type = elf32_nios2_local_got_tls_type (abfd) [r_symndx]; - } - - /* We will already have issued an error message if there is a - TLS / non-TLS mismatch, based on the symbol type. We don't - support any linker relaxations. So just combine any TLS - types needed. */ - if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL - && tls_type != GOT_NORMAL) - tls_type |= old_tls_type; - - if (old_tls_type != tls_type) - { - if (h != NULL) - elf32_nios2_hash_entry (h)->tls_type = tls_type; - else - elf32_nios2_local_got_tls_type (abfd) [r_symndx] = tls_type; - } - } - make_got: - if (htab->root.sgot == NULL) - { - if (htab->root.dynobj == NULL) - htab->root.dynobj = abfd; - if (!create_got_section (htab->root.dynobj, info)) - return false; - } - break; - - case R_NIOS2_TLS_LDM16: - htab->tls_ldm_got.refcount++; - goto make_got; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_NIOS2_GNU_VTINHERIT: - if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return false; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_NIOS2_GNU_VTENTRY: - if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) - return false; - break; - - case R_NIOS2_BFD_RELOC_32: - case R_NIOS2_CALL26: - case R_NIOS2_CALL26_NOAT: - case R_NIOS2_HIADJ16: - case R_NIOS2_LO16: - - if (h != NULL) - { - /* If this reloc is in a read-only section, we might - need a copy reloc. We can't check reliably at this - stage whether the section is read-only, as input - sections have not yet been mapped to output sections. - Tentatively set the flag for now, and correct in - adjust_dynamic_symbol. */ - if (!bfd_link_pic (info)) - h->non_got_ref = 1; - - /* Make sure a plt entry is created for this symbol if it - turns out to be a function defined by a dynamic object. */ - h->plt.refcount++; - - if (r_type == R_NIOS2_CALL26 || r_type == R_NIOS2_CALL26_NOAT) - h->needs_plt = 1; - } - - /* If we are creating a shared library, we need to copy the - reloc into the shared library. */ - if (bfd_link_pic (info) - && (sec->flags & SEC_ALLOC) != 0 - && (r_type == R_NIOS2_BFD_RELOC_32 - || (h != NULL && ! h->needs_plt - && (! SYMBOLIC_BIND (info, h) || ! h->def_regular)))) - { - struct elf_dyn_relocs *p; - struct elf_dyn_relocs **head; - - /* When creating a shared object, we must copy these - reloc types into the output file. We create a reloc - section in dynobj and make room for this reloc. */ - if (sreloc == NULL) - { - if (htab->root.dynobj == NULL) - htab->root.dynobj = abfd; - - sreloc = _bfd_elf_make_dynamic_reloc_section - (sec, htab->root.dynobj, 2, abfd, true); - if (sreloc == NULL) - return false; - } - - /* If this is a global symbol, we count the number of - relocations we need for this symbol. */ - if (h != NULL) - head = &h->dyn_relocs; - else - { - /* Track dynamic relocs needed for local syms too. - We really need local syms available to do this - easily. Oh well. */ - - asection *s; - void *vpp; - Elf_Internal_Sym *isym; - - isym = bfd_sym_from_r_symndx (&htab->root.sym_cache, - abfd, r_symndx); - if (isym == NULL) - return false; - - s = bfd_section_from_elf_index (abfd, isym->st_shndx); - if (s == NULL) - s = sec; - - vpp = &elf_section_data (s)->local_dynrel; - head = (struct elf_dyn_relocs **) vpp; - } - - p = *head; - if (p == NULL || p->sec != sec) - { - size_t amt = sizeof *p; - p = ((struct elf_dyn_relocs *) - bfd_alloc (htab->root.dynobj, amt)); - if (p == NULL) - return false; - p->next = *head; - *head = p; - p->sec = sec; - p->count = 0; - p->pc_count = 0; - } - - p->count += 1; - - } - break; - } - } - - return true; -} - - -/* Implement elf_backend_gc_mark_hook: - Return the section that should be marked against GC for a given - relocation. */ -static asection * -nios2_elf32_gc_mark_hook (asection *sec, - struct bfd_link_info *info, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - if (h != NULL) - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_NIOS2_GNU_VTINHERIT: - case R_NIOS2_GNU_VTENTRY: - return NULL; - } - return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); -} - -/* Implement elf_backend_finish_dynamic_symbols: - Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ -static bool -nios2_elf32_finish_dynamic_symbol (bfd *output_bfd, - struct bfd_link_info *info, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - struct elf32_nios2_link_hash_table *htab; - struct elf32_nios2_link_hash_entry *eh - = (struct elf32_nios2_link_hash_entry *)h; - int use_plt; - - htab = elf32_nios2_hash_table (info); - - if (h->plt.offset != (bfd_vma) -1) - { - asection *splt; - asection *sgotplt; - asection *srela; - bfd_vma plt_index; - bfd_vma got_offset; - Elf_Internal_Rela rela; - bfd_byte *loc; - bfd_vma got_address; - - /* This symbol has an entry in the procedure linkage table. Set - it up. */ - BFD_ASSERT (h->dynindx != -1); - splt = htab->root.splt; - sgotplt = htab->root.sgotplt; - srela = htab->root.srelplt; - BFD_ASSERT (splt != NULL && sgotplt != NULL && srela != NULL); - - /* Emit the PLT entry. */ - if (bfd_link_pic (info)) - { - bfd_vma br_offset; - - nios2_elf32_install_data (splt, nios2_so_plt_entry, h->plt.offset, - 3); - plt_index = (h->plt.offset - 24) / 12; - got_offset = (plt_index + 3) * 4; - nios2_elf32_install_imm16 (splt, h->plt.offset, - hiadj (plt_index * 4)); - nios2_elf32_install_imm16 (splt, h->plt.offset + 4, - plt_index * 4); - br_offset = -(h->plt.offset + 12); - /* If this plt entry is too far away from the start of .plt - for the "br" to reach .PLTresolve, bounce through one or - more of the previous "br" instructions. */ - if (br_offset < (bfd_vma) -32768) - { - br_offset += 32768 / 12 * 12 - 4; - while (br_offset < (bfd_vma) -32768) - br_offset += 32768 / 12 * 12; - } - nios2_elf32_install_imm16 (splt, h->plt.offset + 8, br_offset); - - got_address = (sgotplt->output_section->vma + sgotplt->output_offset - + got_offset); - - /* Fill in the entry in the global offset table. There are no - res_n slots for a shared object PLT, instead the .got.plt entries - point to the PLT entries. */ - bfd_put_32 (output_bfd, - splt->output_section->vma + splt->output_offset - + h->plt.offset, sgotplt->contents + got_offset); - } - else - { - plt_index = (h->plt.offset - 28 - htab->res_n_size) / 12; - got_offset = (plt_index + 3) * 4; - - nios2_elf32_install_data (splt, nios2_plt_entry, h->plt.offset, 3); - got_address = (sgotplt->output_section->vma + sgotplt->output_offset - + got_offset); - nios2_elf32_install_imm16 (splt, h->plt.offset, hiadj (got_address)); - nios2_elf32_install_imm16 (splt, h->plt.offset + 4, got_address); - - /* Fill in the entry in the global offset table. */ - bfd_put_32 (output_bfd, - splt->output_section->vma + splt->output_offset - + plt_index * 4, sgotplt->contents + got_offset); - } - - /* Fill in the entry in the .rela.plt section. */ - rela.r_offset = got_address; - rela.r_info = ELF32_R_INFO (h->dynindx, R_NIOS2_JUMP_SLOT); - rela.r_addend = 0; - loc = srela->contents + plt_index * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - - if (!h->def_regular) - { - /* Mark the symbol as undefined, rather than as defined in - the .plt section. Leave the value alone. */ - sym->st_shndx = SHN_UNDEF; - /* If the symbol is weak, we do need to clear the value. - Otherwise, the PLT entry would provide a definition for - the symbol even if the symbol wasn't defined anywhere, - and so the symbol would never be NULL. */ - if (!h->ref_regular_nonweak) - sym->st_value = 0; - } - } - - use_plt = (eh->got_types_used == CALL_USED - && h->plt.offset != (bfd_vma) -1); - - if (!use_plt && h->got.offset != (bfd_vma) -1 - && (elf32_nios2_hash_entry (h)->tls_type & GOT_TLS_GD) == 0 - && (elf32_nios2_hash_entry (h)->tls_type & GOT_TLS_IE) == 0) - { - asection *sgot; - asection *srela; - Elf_Internal_Rela rela; - bfd_byte *loc; - bfd_vma offset; - - /* This symbol has an entry in the global offset table. Set it - up. */ - sgot = htab->root.sgot; - srela = htab->root.srelgot; - BFD_ASSERT (sgot != NULL && srela != NULL); - - offset = (h->got.offset & ~(bfd_vma) 1); - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset + offset); - - /* If this is a -Bsymbolic link, and the symbol is defined - locally, we just want to emit a RELATIVE reloc. Likewise if - the symbol was forced to be local because of a version file. - The entry in the global offset table will already have been - initialized in the relocate_section function. */ - - if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) - { - rela.r_info = ELF32_R_INFO (0, R_NIOS2_RELATIVE); - rela.r_addend = bfd_get_signed_32 (output_bfd, - (sgot->contents + offset)); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + offset); - } - else - { - bfd_put_32 (output_bfd, (bfd_vma) 0, - sgot->contents + offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_NIOS2_GLOB_DAT); - rela.r_addend = 0; - } - - loc = srela->contents; - loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - - if (use_plt && h->got.offset != (bfd_vma) -1) - { - bfd_vma offset = (h->got.offset & ~(bfd_vma) 1); - asection *sgot = htab->root.sgot; - asection *splt = htab->root.splt; - bfd_put_32 (output_bfd, (splt->output_section->vma + splt->output_offset - + h->plt.offset), - sgot->contents + offset); - } - - if (h->needs_copy) - { - asection *s; - Elf_Internal_Rela rela; - bfd_byte *loc; - - /* This symbol needs a copy reloc. Set it up. */ - BFD_ASSERT (h->dynindx != -1 - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)); - - rela.r_offset = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_NIOS2_COPY); - rela.r_addend = 0; - if (h->root.u.def.section == htab->root.sdynrelro) - s = htab->root.sreldynrelro; - else - s = htab->root.srelbss; - BFD_ASSERT (s != NULL); - loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - } - - /* Mark _DYNAMIC, _GLOBAL_OFFSET_TABLE_, and _gp_got as absolute. */ - if (strcmp (h->root.root.string, "_DYNAMIC") == 0 - || h == htab->root.hgot - || h == htab->h_gp_got) - sym->st_shndx = SHN_ABS; - - return true; -} - -/* Implement elf_backend_finish_dynamic_sections. */ -static bool -nios2_elf32_finish_dynamic_sections (bfd *output_bfd, - struct bfd_link_info *info) -{ - asection *sgotplt; - asection *sdyn; - struct elf32_nios2_link_hash_table *htab; - - htab = elf32_nios2_hash_table (info); - sgotplt = htab->root.sgotplt; - sdyn = NULL; - - if (htab->root.dynamic_sections_created) - { - asection *splt; - Elf32_External_Dyn *dyncon, *dynconend; - - splt = htab->root.splt; - sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic"); - BFD_ASSERT (splt != NULL && sdyn != NULL && sgotplt != NULL); - - dyncon = (Elf32_External_Dyn *) sdyn->contents; - dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); - for (; dyncon < dynconend; dyncon++) - { - Elf_Internal_Dyn dyn; - asection *s; - - bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn); - - switch (dyn.d_tag) - { - default: - break; - - case DT_PLTGOT: - s = htab->root.sgotplt; - dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_JMPREL: - s = htab->root.srelplt; - dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_PLTRELSZ: - s = htab->root.srelplt; - dyn.d_un.d_val = s->size; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_NIOS2_GP: - s = htab->root.sgotplt; - dyn.d_un.d_ptr - = s->output_section->vma + s->output_offset + 0x7ff0; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - } - } - - /* Fill in the first entry in the procedure linkage table. */ - if (splt->size > 0) - { - bfd_vma got_address = (sgotplt->output_section->vma - + sgotplt->output_offset); - if (bfd_link_pic (info)) - { - bfd_vma got_pcrel = got_address - (splt->output_section->vma - + splt->output_offset); - /* Both GOT and PLT must be aligned to a 16-byte boundary - for the two loads to share the %hiadj part. The 4-byte - offset for nextpc is accounted for in the %lo offsets - on the loads. */ - BFD_ASSERT ((got_pcrel & 0xf) == 0); - nios2_elf32_install_data (splt, nios2_so_plt0_entry, 0, 6); - nios2_elf32_install_imm16 (splt, 4, hiadj (got_pcrel)); - nios2_elf32_install_imm16 (splt, 12, got_pcrel); - nios2_elf32_install_imm16 (splt, 16, got_pcrel + 4); - } - else - { - /* Divide by 4 here, not 3 because we already corrected for the - res_N branches. */ - bfd_vma res_size = (splt->size - 28) / 4; - bfd_vma res_start = (splt->output_section->vma - + splt->output_offset); - bfd_vma res_offset; - - for (res_offset = 0; res_offset < res_size; res_offset += 4) - bfd_put_32 (output_bfd, - 6 | ((res_size - (res_offset + 4)) << 6), - splt->contents + res_offset); - - /* The GOT must be aligned to a 16-byte boundary for the - two loads to share the same %hiadj part. */ - BFD_ASSERT ((got_address & 0xf) == 0); - - nios2_elf32_install_data (splt, nios2_plt0_entry, res_size, 7); - nios2_elf32_install_imm16 (splt, res_size, hiadj (res_start)); - nios2_elf32_install_imm16 (splt, res_size + 4, res_start); - nios2_elf32_install_imm16 (splt, res_size + 12, - hiadj (got_address)); - nios2_elf32_install_imm16 (splt, res_size + 16, - got_address + 4); - nios2_elf32_install_imm16 (splt, res_size + 20, - got_address + 8); - } - } - } - - /* Fill in the first three entries in the global offset table. */ - if (sgotplt != NULL && sgotplt->size > 0) - { - if (sdyn == NULL) - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); - else - bfd_put_32 (output_bfd, - sdyn->output_section->vma + sdyn->output_offset, - sgotplt->contents); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); - - if (sgotplt->output_section != bfd_abs_section_ptr) - elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; - } - - return true; -} - -/* Implement elf_backend_adjust_dynamic_symbol: - Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ -static bool -nios2_elf32_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct elf32_nios2_link_hash_table *htab; - bfd *dynobj; - asection *s, *srel; - unsigned align2; - - htab = elf32_nios2_hash_table (info); - dynobj = htab->root.dynobj; - - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && (h->needs_plt - || h->is_weakalias - || (h->def_dynamic - && h->ref_regular - && !h->def_regular))); - - /* If this is a function, put it in the procedure linkage table. We - will fill in the contents of the procedure linkage table later, - when we know the address of the .got section. */ - if (h->type == STT_FUNC || h->needs_plt) - { - if (h->plt.refcount <= 0 - || SYMBOL_CALLS_LOCAL (info, h) - || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - && h->root.type == bfd_link_hash_undefweak)) - { - /* This case can occur if we saw a PLT reloc in an input - file, but the symbol was never referred to by a dynamic - object, or if all references were garbage collected. In - such a case, we don't actually need to build a procedure - linkage table, and we can just do a PCREL reloc instead. */ - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - return true; - } - - /* Reinitialize the plt offset now that it is not used as a reference - count any more. */ - h->plt.offset = (bfd_vma) -1; - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->is_weakalias) - { - struct elf_link_hash_entry *def = weakdef (h); - BFD_ASSERT (def->root.type == bfd_link_hash_defined); - h->root.u.def.section = def->root.u.def.section; - h->root.u.def.value = def->root.u.def.value; - return true; - } - - /* If there are no non-GOT references, we do not need a copy - relocation. */ - if (!h->non_got_ref) - return true; - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. - If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (bfd_link_pic (info)) - return true; - - if (h->size == 0) - { - _bfd_error_handler (_("dynamic variable `%s' is zero size"), - h->root.root.string); - return true; - } - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - both the dynamic object and the regular object will refer to the - same memory location for the variable. */ - /* We must generate a R_NIOS2_COPY reloc to tell the dynamic linker to - copy the initial value out of the dynamic object and into the - runtime process image. We need to remember the offset into the - .rela.bss section we are going to use. */ - if ((h->root.u.def.section->flags & SEC_READONLY) != 0) - { - s = htab->root.sdynrelro; - srel = htab->root.sreldynrelro; - } - else - { - s = htab->root.sdynbss; - srel = htab->root.srelbss; - } - if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) - { - srel->size += sizeof (Elf32_External_Rela); - h->needs_copy = 1; - } - - align2 = bfd_log2 (h->size); - if (align2 > h->root.u.def.section->alignment_power) - align2 = h->root.u.def.section->alignment_power; - - /* Align dynbss. */ - s->size = BFD_ALIGN (s->size, (bfd_size_type)1 << align2); - if (align2 > bfd_section_alignment (s) - && !bfd_set_section_alignment (s, align2)) - return false; - - /* Define the symbol as being at this point in the section. */ - h->root.u.def.section = s; - h->root.u.def.value = s->size; - - /* Increment the section size to make room for the symbol. */ - s->size += h->size; - - return true; -} - -/* Worker function for nios2_elf32_late_size_sections. */ -static bool -adjust_dynrelocs (struct elf_link_hash_entry *h, void *inf) -{ - struct bfd_link_info *info; - struct elf32_nios2_link_hash_table *htab; - - if (h->root.type == bfd_link_hash_indirect) - return true; - - if (h->root.type == bfd_link_hash_warning) - /* When warning symbols are created, they **replace** the "real" - entry in the hash table, thus we never get to see the real - symbol in a hash traversal. So look at it now. */ - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - info = (struct bfd_link_info *) inf; - htab = elf32_nios2_hash_table (info); - - if (h->plt.offset != (bfd_vma)-1) - h->plt.offset += htab->res_n_size; - if (htab->root.splt == h->root.u.def.section) - h->root.u.def.value += htab->res_n_size; - - return true; -} - -/* Another worker function for nios2_elf32_late_size_sections. - Allocate space in .plt, .got and associated reloc sections for - dynamic relocs. */ -static bool -allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) -{ - struct bfd_link_info *info; - struct elf32_nios2_link_hash_table *htab; - struct elf32_nios2_link_hash_entry *eh; - struct elf_dyn_relocs *p; - int use_plt; - - if (h->root.type == bfd_link_hash_indirect) - return true; - - if (h->root.type == bfd_link_hash_warning) - /* When warning symbols are created, they **replace** the "real" - entry in the hash table, thus we never get to see the real - symbol in a hash traversal. So look at it now. */ - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - info = (struct bfd_link_info *) inf; - htab = elf32_nios2_hash_table (info); - - if (htab->root.dynamic_sections_created - && h->plt.refcount > 0) - { - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local - && !bfd_elf_link_record_dynamic_symbol (info, h)) - return false; - - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) - { - asection *s = htab->root.splt; - - /* Allocate room for the header. */ - if (s->size == 0) - { - if (bfd_link_pic (info)) - s->size = 24; - else - s->size = 28; - } - - h->plt.offset = s->size; - - /* If this symbol is not defined in a regular file, and we are - not generating a shared library, then set the symbol to this - location in the .plt. This is required to make function - pointers compare as equal between the normal executable and - the shared library. */ - if (! bfd_link_pic (info) - && !h->def_regular) - { - h->root.u.def.section = s; - h->root.u.def.value = h->plt.offset; - } - - /* Make room for this entry. */ - s->size += 12; - - /* We also need to make an entry in the .rela.plt section. */ - htab->root.srelplt->size += sizeof (Elf32_External_Rela); - - /* And the .got.plt section. */ - htab->root.sgotplt->size += 4; - } - else - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - } - else - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - eh = (struct elf32_nios2_link_hash_entry *) h; - use_plt = (eh->got_types_used == CALL_USED - && h->plt.offset != (bfd_vma) -1); - - if (h->got.refcount > 0) - { - asection *s; - bool dyn; - int tls_type = eh->tls_type; - int indx; - - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local - && !bfd_elf_link_record_dynamic_symbol (info, h)) - return false; - - s = htab->root.sgot; - h->got.offset = s->size; - - if (tls_type == GOT_UNKNOWN) - abort (); - - if (tls_type == GOT_NORMAL) - /* Non-TLS symbols need one GOT slot. */ - s->size += 4; - else - { - if (tls_type & GOT_TLS_GD) - /* R_NIOS2_TLS_GD16 needs 2 consecutive GOT slots. */ - s->size += 8; - if (tls_type & GOT_TLS_IE) - /* R_NIOS2_TLS_IE16 needs one GOT slot. */ - s->size += 4; - } - - dyn = htab->root.dynamic_sections_created; - - indx = 0; - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) - && (!bfd_link_pic (info) - || !SYMBOL_REFERENCES_LOCAL (info, h))) - indx = h->dynindx; - - if (tls_type != GOT_NORMAL - && (bfd_link_pic (info) || indx != 0) - && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - || h->root.type != bfd_link_hash_undefweak)) - { - if (tls_type & GOT_TLS_IE) - htab->root.srelgot->size += sizeof (Elf32_External_Rela); - - if (tls_type & GOT_TLS_GD) - htab->root.srelgot->size += sizeof (Elf32_External_Rela); - - if ((tls_type & GOT_TLS_GD) && indx != 0) - htab->root.srelgot->size += sizeof (Elf32_External_Rela); - } - else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - || h->root.type != bfd_link_hash_undefweak) - && !use_plt - && (bfd_link_pic (info) - || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) - htab->root.srelgot->size += sizeof (Elf32_External_Rela); - } - else - h->got.offset = (bfd_vma) -1; - - if (h->dyn_relocs == NULL) - return true; - - /* In the shared -Bsymbolic case, discard space allocated for - dynamic pc-relative relocs against symbols which turn out to be - defined in regular objects. For the normal shared case, discard - space for pc-relative relocs that have become local due to symbol - visibility changes. */ - - if (bfd_link_pic (info)) - { - if (h->def_regular - && (h->forced_local || SYMBOLIC_BIND (info, h))) - { - struct elf_dyn_relocs **pp; - - for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) - { - p->count -= p->pc_count; - p->pc_count = 0; - if (p->count == 0) - *pp = p->next; - else - pp = &p->next; - } - } - - /* Also discard relocs on undefined weak syms with non-default - visibility. */ - if (h->dyn_relocs != NULL - && h->root.type == bfd_link_hash_undefweak) - { - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT - || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) - h->dyn_relocs = NULL; - - /* Make sure undefined weak symbols are output as a dynamic - symbol in PIEs. */ - else if (h->dynindx == -1 - && !h->forced_local - && !bfd_elf_link_record_dynamic_symbol (info, h)) - return false; - } - } - else - { - /* For the non-shared case, discard space for relocs against - symbols which turn out to need copy relocs or are not - dynamic. */ - - if (!h->non_got_ref - && ((h->def_dynamic && !h->def_regular) - || (htab->root.dynamic_sections_created - && (h->root.type == bfd_link_hash_undefweak - || h->root.type == bfd_link_hash_undefined)))) - { - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local - && !bfd_elf_link_record_dynamic_symbol (info, h)) - return false; - - /* If that succeeded, we know we'll be keeping all the - relocs. */ - if (h->dynindx != -1) - goto keep; - } - - h->dyn_relocs = NULL; - - keep: ; - } - - /* Finally, allocate space. */ - for (p = h->dyn_relocs; p != NULL; p = p->next) - { - asection *sreloc = elf_section_data (p->sec)->sreloc; - sreloc->size += p->count * sizeof (Elf32_External_Rela); - } - - return true; -} - -/* Implement elf_backend_late_size_sections: - Set the sizes of the dynamic sections. */ -static bool -nios2_elf32_late_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) -{ - bfd *dynobj; - asection *s; - bool relocs; - bfd *ibfd; - struct elf32_nios2_link_hash_table *htab; - - htab = elf32_nios2_hash_table (info); - dynobj = htab->root.dynobj; - if (dynobj == NULL) - return true; - - htab->res_n_size = 0; - if (htab->root.dynamic_sections_created) - { - /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info) && !info->nointerp) - { - s = bfd_get_linker_section (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - } - else - { - /* We may have created entries in the .rela.got section. - However, if we are not creating the dynamic sections, we will - not actually use these entries. Reset the size of .rela.got, - which will cause it to get stripped from the output file - below. */ - s = htab->root.srelgot; - if (s != NULL) - s->size = 0; - } - - /* Set up .got offsets for local syms, and space for local dynamic - relocs. */ - for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) - { - bfd_signed_vma *local_got; - bfd_signed_vma *end_local_got; - char *local_tls_type; - bfd_size_type locsymcount; - Elf_Internal_Shdr *symtab_hdr; - asection *srel; - - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) - continue; - - for (s = ibfd->sections; s != NULL; s = s->next) - { - struct elf_dyn_relocs *p; - - for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) - { - if (!bfd_is_abs_section (p->sec) - && bfd_is_abs_section (p->sec->output_section)) - { - /* Input section has been discarded, either because - it is a copy of a linkonce section or due to - linker script /DISCARD/, so we'll be discarding - the relocs too. */ - } - else if (p->count != 0) - { - srel = elf_section_data (p->sec)->sreloc; - srel->size += p->count * sizeof (Elf32_External_Rela); - } - } - } - - local_got = elf_local_got_refcounts (ibfd); - if (!local_got) - continue; - - symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; - locsymcount = symtab_hdr->sh_info; - end_local_got = local_got + locsymcount; - local_tls_type = elf32_nios2_local_got_tls_type (ibfd); - s = htab->root.sgot; - srel = htab->root.srelgot; - for (; local_got < end_local_got; ++local_got, ++local_tls_type) - { - if (*local_got > 0) - { - *local_got = s->size; - if (*local_tls_type & GOT_TLS_GD) - /* TLS_GD relocs need an 8-byte structure in the GOT. */ - s->size += 8; - if (*local_tls_type & GOT_TLS_IE) - s->size += 4; - if (*local_tls_type == GOT_NORMAL) - s->size += 4; - - if (bfd_link_pic (info) || *local_tls_type == GOT_TLS_GD) - srel->size += sizeof (Elf32_External_Rela); - } - else - *local_got = (bfd_vma) -1; - } - } - - if (htab->tls_ldm_got.refcount > 0) - { - /* Allocate two GOT entries and one dynamic relocation (if necessary) - for R_NIOS2_TLS_LDM16 relocations. */ - htab->tls_ldm_got.offset = htab->root.sgot->size; - htab->root.sgot->size += 8; - if (bfd_link_pic (info)) - htab->root.srelgot->size += sizeof (Elf32_External_Rela); - } - else - htab->tls_ldm_got.offset = -1; - - /* Allocate global sym .plt and .got entries, and space for global - sym dynamic relocs. */ - elf_link_hash_traverse (& htab->root, allocate_dynrelocs, info); - - if (htab->root.dynamic_sections_created) - { - /* If the .got section is more than 0x8000 bytes, we add - 0x8000 to the value of _gp_got, so that 16-bit relocations - have a greater chance of working. */ - if (htab->root.sgot->size >= 0x8000 - && htab->h_gp_got->root.u.def.value == 0) - htab->h_gp_got->root.u.def.value = 0x8000; - } - - /* The check_relocs and adjust_dynamic_symbol entry points have - determined the sizes of the various dynamic sections. Allocate - memory for them. */ - relocs = false; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - /* It's OK to base decisions on the section name, because none - of the dynobj section names depend upon the input files. */ - name = bfd_section_name (s); - - if (startswith (name, ".rela")) - { - if (s->size != 0) - { - if (s != htab->root.srelplt) - relocs = true; - - /* We use the reloc_count field as a counter if we need - to copy relocs into the output file. */ - s->reloc_count = 0; - } - } - else if (s == htab->root.splt) - { - /* Correct for the number of res_N branches. */ - if (s->size != 0 && !bfd_link_pic (info)) - { - htab->res_n_size = (s->size - 28) / 3; - s->size += htab->res_n_size; - } - } - else if (s != htab->sbss - && s != htab->root.sgot - && s != htab->root.sgotplt - && s != htab->root.sdynbss - && s != htab->root.sdynrelro) - /* It's not one of our sections, so don't allocate space. */ - continue; - - if (s->size == 0) - { - s->flags |= SEC_EXCLUDE; - continue; - } - - if ((s->flags & SEC_HAS_CONTENTS) == 0) - continue; - - /* Allocate memory for the section contents. */ - s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); - if (s->contents == NULL) - return false; - } - - /* Adjust dynamic symbols that point to the plt to account for the - now-known number of resN slots. */ - if (htab->res_n_size) - elf_link_hash_traverse (& htab->root, adjust_dynrelocs, info); - - return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); -} - -/* Free the derived linker hash table. */ -static void -nios2_elf32_link_hash_table_free (bfd *obfd) -{ - struct elf32_nios2_link_hash_table *htab - = (struct elf32_nios2_link_hash_table *) obfd->link.hash; - - bfd_hash_table_free (&htab->bstab); - _bfd_elf_link_hash_table_free (obfd); -} - -/* Implement bfd_elf32_bfd_link_hash_table_create. */ -static struct bfd_link_hash_table * -nios2_elf32_link_hash_table_create (bfd *abfd) -{ - struct elf32_nios2_link_hash_table *ret; - size_t amt = sizeof (struct elf32_nios2_link_hash_table); - - ret = bfd_zmalloc (amt); - if (ret == NULL) - return NULL; - - if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, - link_hash_newfunc, - sizeof (struct - elf32_nios2_link_hash_entry), - NIOS2_ELF_DATA)) - { - free (ret); - return NULL; - } - - /* Init the stub hash table too. */ - if (!bfd_hash_table_init (&ret->bstab, stub_hash_newfunc, - sizeof (struct elf32_nios2_stub_hash_entry))) - { - _bfd_elf_link_hash_table_free (abfd); - return NULL; - } - ret->root.root.hash_table_free = nios2_elf32_link_hash_table_free; - - return &ret->root.root; -} - -/* Implement elf_backend_reloc_type_class. */ -static enum elf_reloc_type_class -nios2_elf32_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, - const asection *rel_sec ATTRIBUTE_UNUSED, - const Elf_Internal_Rela *rela) -{ - switch ((int) ELF32_R_TYPE (rela->r_info)) - { - case R_NIOS2_RELATIVE: - return reloc_class_relative; - case R_NIOS2_JUMP_SLOT: - return reloc_class_plt; - case R_NIOS2_COPY: - return reloc_class_copy; - default: - return reloc_class_normal; - } -} - -/* Return 1 if target is one of ours. */ -static bool -is_nios2_elf_target (const struct bfd_target *targ) -{ - return (targ == &nios2_elf32_le_vec - || targ == &nios2_elf32_be_vec); -} - -/* Implement elf_backend_add_symbol_hook. - This hook is called by the linker when adding symbols from an object - file. We use it to put .comm items in .sbss, and not .bss. */ -static bool -nios2_elf_add_symbol_hook (bfd *abfd, - struct bfd_link_info *info, - Elf_Internal_Sym *sym, - const char **namep ATTRIBUTE_UNUSED, - flagword *flagsp ATTRIBUTE_UNUSED, - asection **secp, - bfd_vma *valp) -{ - if (sym->st_shndx == SHN_COMMON - && !bfd_link_relocatable (info) - && sym->st_size <= elf_gp_size (abfd) - && is_nios2_elf_target (info->output_bfd->xvec)) - { - /* Common symbols less than or equal to -G nn bytes are automatically - put into .sbss. */ - struct elf32_nios2_link_hash_table *htab; - - htab = elf32_nios2_hash_table (info); - if (htab->sbss == NULL) - { - flagword flags = SEC_IS_COMMON | SEC_SMALL_DATA | SEC_LINKER_CREATED; - - if (htab->root.dynobj == NULL) - htab->root.dynobj = abfd; - - htab->sbss = bfd_make_section_anyway_with_flags (htab->root.dynobj, - ".sbss", flags); - if (htab->sbss == NULL) - return false; - } - - *secp = htab->sbss; - *valp = sym->st_size; - } - - return true; -} - -/* Implement elf_backend_can_make_relative_eh_frame: - Decide whether to attempt to turn absptr or lsda encodings in - shared libraries into pcrel within the given input section. */ -static bool -nios2_elf32_can_make_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info - ATTRIBUTE_UNUSED, - asection *eh_frame_section - ATTRIBUTE_UNUSED) -{ - /* We can't use PC-relative encodings in the .eh_frame section. */ - return false; -} - -/* Implement elf_backend_special_sections. */ -const struct bfd_elf_special_section elf32_nios2_special_sections[] = -{ - { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, - SHF_ALLOC + SHF_WRITE + SHF_NIOS2_GPREL }, - { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, - SHF_ALLOC + SHF_WRITE + SHF_NIOS2_GPREL }, - { NULL, 0, 0, 0, 0 } -}; - -#define ELF_ARCH bfd_arch_nios2 -#define ELF_TARGET_ID NIOS2_ELF_DATA -#define ELF_MACHINE_CODE EM_ALTERA_NIOS2 - -/* The Nios II MMU uses a 4K page size. */ - -#define ELF_MAXPAGESIZE 0x1000 - -#define bfd_elf32_bfd_link_hash_table_create \ - nios2_elf32_link_hash_table_create - -#define bfd_elf32_bfd_merge_private_bfd_data \ - nios2_elf32_merge_private_bfd_data - -/* Relocation table lookup macros. */ - -#define bfd_elf32_bfd_reloc_type_lookup nios2_elf32_bfd_reloc_type_lookup -#define bfd_elf32_bfd_reloc_name_lookup nios2_elf32_bfd_reloc_name_lookup - -/* JUMP_TABLE_LINK macros. */ - -/* elf_info_to_howto (using RELA relocations). */ - -#define elf_info_to_howto nios2_elf32_info_to_howto - -/* elf backend functions. */ - -#define elf_backend_can_gc_sections 1 -#define elf_backend_can_refcount 1 -#define elf_backend_plt_readonly 1 -#define elf_backend_want_got_plt 1 -#define elf_backend_want_dynrelro 1 -#define elf_backend_rela_normal 1 -#define elf_backend_dtrel_excludes_plt 1 - -#define elf_backend_relocate_section nios2_elf32_relocate_section -#define elf_backend_section_flags nios2_elf32_section_flags -#define elf_backend_fake_sections nios2_elf32_fake_sections -#define elf_backend_check_relocs nios2_elf32_check_relocs - -#define elf_backend_gc_mark_hook nios2_elf32_gc_mark_hook -#define elf_backend_create_dynamic_sections \ - nios2_elf32_create_dynamic_sections -#define elf_backend_finish_dynamic_symbol nios2_elf32_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections \ - nios2_elf32_finish_dynamic_sections -#define elf_backend_adjust_dynamic_symbol nios2_elf32_adjust_dynamic_symbol -#define elf_backend_reloc_type_class nios2_elf32_reloc_type_class -#define elf_backend_late_size_sections nios2_elf32_late_size_sections -#define elf_backend_add_symbol_hook nios2_elf_add_symbol_hook -#define elf_backend_copy_indirect_symbol nios2_elf32_copy_indirect_symbol -#define elf_backend_object_p nios2_elf32_object_p - -#define elf_backend_grok_prstatus nios2_grok_prstatus -#define elf_backend_grok_psinfo nios2_grok_psinfo - -#undef elf_backend_can_make_relative_eh_frame -#define elf_backend_can_make_relative_eh_frame \ - nios2_elf32_can_make_relative_eh_frame - -#define elf_backend_special_sections elf32_nios2_special_sections - -#define TARGET_LITTLE_SYM nios2_elf32_le_vec -#define TARGET_LITTLE_NAME "elf32-littlenios2" -#define TARGET_BIG_SYM nios2_elf32_be_vec -#define TARGET_BIG_NAME "elf32-bignios2" - -#define elf_backend_got_header_size 12 -#define elf_backend_default_execstack 0 - -#include "elf32-target.h" diff --git a/bfd/elf32-nios2.h b/bfd/elf32-nios2.h deleted file mode 100644 index 2f5e484b569..00000000000 --- a/bfd/elf32-nios2.h +++ /dev/null @@ -1,38 +0,0 @@ -/* Nios II support for 32-bit ELF - Copyright (C) 2013-2024 Free Software Foundation, Inc. - Contributed by Mentor Graphics - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#ifndef _ELF32_NIOS2_H -#define _ELF32_NIOS2_H - -extern int nios2_elf32_setup_section_lists - (bfd *, struct bfd_link_info *); - -extern void nios2_elf32_next_input_section - (struct bfd_link_info *, asection *); - -extern bool nios2_elf32_size_stubs - (bfd *, bfd *, struct bfd_link_info *, - asection * (*) (const char *, asection *, bool), void (*) (void)); - -extern bool nios2_elf32_build_stubs - (struct bfd_link_info *); - -#endif /* _ELF32_NIOS2_H */ diff --git a/bfd/libbfd.h b/bfd/libbfd.h index 5da7541e06e..7d7ae1eaec9 100644 --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -2895,58 +2895,6 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "BFD_RELOC_MSP430_SYM_DIFF", "BFD_RELOC_MSP430_SET_ULEB128", "BFD_RELOC_MSP430_SUB_ULEB128", - "BFD_RELOC_NIOS2_S16", - "BFD_RELOC_NIOS2_U16", - "BFD_RELOC_NIOS2_CALL26", - "BFD_RELOC_NIOS2_IMM5", - "BFD_RELOC_NIOS2_CACHE_OPX", - "BFD_RELOC_NIOS2_IMM6", - "BFD_RELOC_NIOS2_IMM8", - "BFD_RELOC_NIOS2_HI16", - "BFD_RELOC_NIOS2_LO16", - "BFD_RELOC_NIOS2_HIADJ16", - "BFD_RELOC_NIOS2_GPREL", - "BFD_RELOC_NIOS2_UJMP", - "BFD_RELOC_NIOS2_CJMP", - "BFD_RELOC_NIOS2_CALLR", - "BFD_RELOC_NIOS2_ALIGN", - "BFD_RELOC_NIOS2_GOT16", - "BFD_RELOC_NIOS2_CALL16", - "BFD_RELOC_NIOS2_GOTOFF_LO", - "BFD_RELOC_NIOS2_GOTOFF_HA", - "BFD_RELOC_NIOS2_PCREL_LO", - "BFD_RELOC_NIOS2_PCREL_HA", - "BFD_RELOC_NIOS2_TLS_GD16", - "BFD_RELOC_NIOS2_TLS_LDM16", - "BFD_RELOC_NIOS2_TLS_LDO16", - "BFD_RELOC_NIOS2_TLS_IE16", - "BFD_RELOC_NIOS2_TLS_LE16", - "BFD_RELOC_NIOS2_TLS_DTPMOD", - "BFD_RELOC_NIOS2_TLS_DTPREL", - "BFD_RELOC_NIOS2_TLS_TPREL", - "BFD_RELOC_NIOS2_COPY", - "BFD_RELOC_NIOS2_GLOB_DAT", - "BFD_RELOC_NIOS2_JUMP_SLOT", - "BFD_RELOC_NIOS2_RELATIVE", - "BFD_RELOC_NIOS2_GOTOFF", - "BFD_RELOC_NIOS2_CALL26_NOAT", - "BFD_RELOC_NIOS2_GOT_LO", - "BFD_RELOC_NIOS2_GOT_HA", - "BFD_RELOC_NIOS2_CALL_LO", - "BFD_RELOC_NIOS2_CALL_HA", - "BFD_RELOC_NIOS2_R2_S12", - "BFD_RELOC_NIOS2_R2_I10_1_PCREL", - "BFD_RELOC_NIOS2_R2_T1I7_1_PCREL", - "BFD_RELOC_NIOS2_R2_T1I7_2", - "BFD_RELOC_NIOS2_R2_T2I4", - "BFD_RELOC_NIOS2_R2_T2I4_1", - "BFD_RELOC_NIOS2_R2_T2I4_2", - "BFD_RELOC_NIOS2_R2_X1I7_2", - "BFD_RELOC_NIOS2_R2_X2L5", - "BFD_RELOC_NIOS2_R2_F1I5_2", - "BFD_RELOC_NIOS2_R2_L5I4X1", - "BFD_RELOC_NIOS2_R2_T1X1I6", - "BFD_RELOC_NIOS2_R2_T1X1I6_2", "BFD_RELOC_PRU_U16", "BFD_RELOC_PRU_U16_PMEMIMM", "BFD_RELOC_PRU_LDI32", diff --git a/bfd/reloc.c b/bfd/reloc.c index a187afe9b56..f60776299c8 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -6187,113 +6187,6 @@ ENUMDOC msp430 specific relocation codes. ENUM - BFD_RELOC_NIOS2_S16 -ENUMX - BFD_RELOC_NIOS2_U16 -ENUMX - BFD_RELOC_NIOS2_CALL26 -ENUMX - BFD_RELOC_NIOS2_IMM5 -ENUMX - BFD_RELOC_NIOS2_CACHE_OPX -ENUMX - BFD_RELOC_NIOS2_IMM6 -ENUMX - BFD_RELOC_NIOS2_IMM8 -ENUMX - BFD_RELOC_NIOS2_HI16 -ENUMX - BFD_RELOC_NIOS2_LO16 -ENUMX - BFD_RELOC_NIOS2_HIADJ16 -ENUMX - BFD_RELOC_NIOS2_GPREL -ENUMX - BFD_RELOC_NIOS2_UJMP -ENUMX - BFD_RELOC_NIOS2_CJMP -ENUMX - BFD_RELOC_NIOS2_CALLR -ENUMX - BFD_RELOC_NIOS2_ALIGN -ENUMX - BFD_RELOC_NIOS2_GOT16 -ENUMX - BFD_RELOC_NIOS2_CALL16 -ENUMX - BFD_RELOC_NIOS2_GOTOFF_LO -ENUMX - BFD_RELOC_NIOS2_GOTOFF_HA -ENUMX - BFD_RELOC_NIOS2_PCREL_LO -ENUMX - BFD_RELOC_NIOS2_PCREL_HA -ENUMX - BFD_RELOC_NIOS2_TLS_GD16 -ENUMX - BFD_RELOC_NIOS2_TLS_LDM16 -ENUMX - BFD_RELOC_NIOS2_TLS_LDO16 -ENUMX - BFD_RELOC_NIOS2_TLS_IE16 -ENUMX - BFD_RELOC_NIOS2_TLS_LE16 -ENUMX - BFD_RELOC_NIOS2_TLS_DTPMOD -ENUMX - BFD_RELOC_NIOS2_TLS_DTPREL -ENUMX - BFD_RELOC_NIOS2_TLS_TPREL -ENUMX - BFD_RELOC_NIOS2_COPY -ENUMX - BFD_RELOC_NIOS2_GLOB_DAT -ENUMX - BFD_RELOC_NIOS2_JUMP_SLOT -ENUMX - BFD_RELOC_NIOS2_RELATIVE -ENUMX - BFD_RELOC_NIOS2_GOTOFF -ENUMX - BFD_RELOC_NIOS2_CALL26_NOAT -ENUMX - BFD_RELOC_NIOS2_GOT_LO -ENUMX - BFD_RELOC_NIOS2_GOT_HA -ENUMX - BFD_RELOC_NIOS2_CALL_LO -ENUMX - BFD_RELOC_NIOS2_CALL_HA -ENUMX - BFD_RELOC_NIOS2_R2_S12 -ENUMX - BFD_RELOC_NIOS2_R2_I10_1_PCREL -ENUMX - BFD_RELOC_NIOS2_R2_T1I7_1_PCREL -ENUMX - BFD_RELOC_NIOS2_R2_T1I7_2 -ENUMX - BFD_RELOC_NIOS2_R2_T2I4 -ENUMX - BFD_RELOC_NIOS2_R2_T2I4_1 -ENUMX - BFD_RELOC_NIOS2_R2_T2I4_2 -ENUMX - BFD_RELOC_NIOS2_R2_X1I7_2 -ENUMX - BFD_RELOC_NIOS2_R2_X2L5 -ENUMX - BFD_RELOC_NIOS2_R2_F1I5_2 -ENUMX - BFD_RELOC_NIOS2_R2_L5I4X1 -ENUMX - BFD_RELOC_NIOS2_R2_T1X1I6 -ENUMX - BFD_RELOC_NIOS2_R2_T1X1I6_2 -ENUMDOC - Relocations used by the Altera Nios II core. - -ENUM BFD_RELOC_PRU_U16 ENUMDOC PRU LDI 16-bit unsigned data-memory relocation. diff --git a/bfd/targets.c b/bfd/targets.c index 0d5d73ba462..178e9d30a2b 100644 --- a/bfd/targets.c +++ b/bfd/targets.c @@ -833,8 +833,6 @@ extern const bfd_target nds32_elf32_le_vec; extern const bfd_target nds32_elf32_linux_be_vec; extern const bfd_target nds32_elf32_linux_le_vec; extern const bfd_target nfp_elf64_vec; -extern const bfd_target nios2_elf32_be_vec; -extern const bfd_target nios2_elf32_le_vec; extern const bfd_target ns32k_aout_pc532mach_vec; extern const bfd_target ns32k_aout_pc532nbsd_vec; extern const bfd_target or1k_elf32_vec; @@ -1217,9 +1215,6 @@ static const bfd_target * const _bfd_target_vector[] = &nfp_elf64_vec, #endif - &nios2_elf32_be_vec, - &nios2_elf32_le_vec, - &ns32k_aout_pc532mach_vec, &ns32k_aout_pc532nbsd_vec, |