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/* Copyright (C) 1999-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/*
* Powerpc Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP).
* This entry is copied to _dl_hwcap or rtld_global._dl_hwcap during startup.
*/
#define _SYSDEPS_SYSDEP_H 1
#include <bits/hwcap.h>
#ifdef ENABLE_LOCK_ELISION
#include <tls.h>
#include <htm.h>
#endif
#define PPC_FEATURE_970 (PPC_FEATURE_POWER4 + PPC_FEATURE_HAS_ALTIVEC)
#ifdef __ASSEMBLER__
/* Symbolic names for the registers. The only portable way to write asm
code is to use number but this produces really unreadable code.
Therefore these symbolic names. */
/* Integer registers. */
#define r0 0
#define r1 1
#define r2 2
#define r3 3
#define r4 4
#define r5 5
#define r6 6
#define r7 7
#define r8 8
#define r9 9
#define r10 10
#define r11 11
#define r12 12
#define r13 13
#define r14 14
#define r15 15
#define r16 16
#define r17 17
#define r18 18
#define r19 19
#define r20 20
#define r21 21
#define r22 22
#define r23 23
#define r24 24
#define r25 25
#define r26 26
#define r27 27
#define r28 28
#define r29 29
#define r30 30
#define r31 31
/* Floating-point registers. */
#define fp0 0
#define fp1 1
#define fp2 2
#define fp3 3
#define fp4 4
#define fp5 5
#define fp6 6
#define fp7 7
#define fp8 8
#define fp9 9
#define fp10 10
#define fp11 11
#define fp12 12
#define fp13 13
#define fp14 14
#define fp15 15
#define fp16 16
#define fp17 17
#define fp18 18
#define fp19 19
#define fp20 20
#define fp21 21
#define fp22 22
#define fp23 23
#define fp24 24
#define fp25 25
#define fp26 26
#define fp27 27
#define fp28 28
#define fp29 29
#define fp30 30
#define fp31 31
/* Condition code registers. */
#define cr0 0
#define cr1 1
#define cr2 2
#define cr3 3
#define cr4 4
#define cr5 5
#define cr6 6
#define cr7 7
/* Vector registers. */
#define v0 0
#define v1 1
#define v2 2
#define v3 3
#define v4 4
#define v5 5
#define v6 6
#define v7 7
#define v8 8
#define v9 9
#define v10 10
#define v11 11
#define v12 12
#define v13 13
#define v14 14
#define v15 15
#define v16 16
#define v17 17
#define v18 18
#define v19 19
#define v20 20
#define v21 21
#define v22 22
#define v23 23
#define v24 24
#define v25 25
#define v26 26
#define v27 27
#define v28 28
#define v29 29
#define v30 30
#define v31 31
#define VRSAVE 256
/* The 32-bit words of a 64-bit dword are at these offsets in memory. */
#if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
# define LOWORD 0
# define HIWORD 4
#else
# define LOWORD 4
# define HIWORD 0
#endif
/* The high 16-bit word of a 64-bit dword is at this offset in memory. */
#if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
# define HISHORT 6
#else
# define HISHORT 0
#endif
/* This seems to always be the case on PPC. */
#define ALIGNARG(log2) log2
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
#else
/* Linux kernel powerpc documentation [1] states issuing a syscall inside a
transaction is not recommended and may lead to undefined behavior. It
also states syscalls do not abort transactions. To avoid such traps,
we abort transaction just before syscalls.
[1] Documentation/powerpc/transactional_memory.txt [Syscalls] */
#if !IS_IN(rtld) && defined (ENABLE_LOCK_ELISION)
# define ABORT_TRANSACTION \
({ \
if (THREAD_GET_TM_CAPABLE ()) \
__builtin_tabort (_ABORT_SYSCALL); \
})
#else
# define ABORT_TRANSACTION
#endif
#endif /* __ASSEMBLER__ */
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