2010-11-10 Magnus Granberg <zorry@gento.org>, Francisco Blas Izquierdo Riera <franxisco1988@mixmail.com> #344031 * configure.in: Rename strings-x86.s to strings-x86.S * strings/Makefile.am Likewise. * strings/Makefile.in Likewise. * strings/strings-x86.S Copy of strings-x86.s to support -fPIC diff -urN a/configure.in b/configure.in --- a/configure.in 2010-11-10 00:23:45.287000082 +0100 +++ b/configure.in 2010-11-10 00:30:47.681000059 +0100 @@ -698,7 +698,7 @@ AC_MSG_CHECKING(if we should use assembler functions) # For now we only support assembler on i386 and sparc systems -AM_CONDITIONAL(ASSEMBLER_x86, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "i386" && $CCAS $CCASFLAGS -c strings/strings-x86.s -o checkassembler >/dev/null 2>&1 && test -f checkassembler && (rm -f checkassembler; exit 0;)) +AM_CONDITIONAL(ASSEMBLER_x86, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "i386" && $CCAS $CCASFLAGS -c strings/strings-x86.S -o checkassembler >/dev/null 2>&1 && test -f checkassembler && (rm -f checkassembler; exit 0;)) AM_CONDITIONAL(ASSEMBLER_sparc32, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "sparc") AM_CONDITIONAL(ASSEMBLER_sparc64, test "$ENABLE_ASSEMBLER" = "yes" -a "$BASE_MACHINE_TYPE" = "sparcv9") AM_CONDITIONAL(ASSEMBLER, test "$ASSEMBLER_x86_TRUE" = "" -o "$ASSEMBLER_sparc32_TRUE" = "") diff -urN a/strings/Makefile.am b/strings/Makefile.am --- a/strings/Makefile.am 2010-11-10 00:23:45.421000083 +0100 +++ b/strings/Makefile.am 2010-11-10 00:31:23.489000090 +0100 @@ -20,7 +20,7 @@ # Exact one of ASSEMBLER_X if ASSEMBLER_x86 -ASRCS = strings-x86.s longlong2str-x86.s my_strtoll10-x86.s +ASRCS = strings-x86.S longlong2str-x86.s my_strtoll10-x86.s CSRCS = bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c str_alloc.c longlong2str_asm.c my_strchr.c strmov.c strmov_overlapp.c else if ASSEMBLER_sparc32 @@ -44,7 +44,7 @@ EXTRA_DIST = ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-win1250ch.c \ ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-utf8.c \ ctype-ucs2.c ctype-uca.c ctype-tis620.c ctype-ujis.c \ - xml.c decimal.c strto.c strings-x86.s \ + xml.c decimal.c strto.c strings-x86.S \ longlong2str.c longlong2str-x86.s longlong2str_asm.c \ my_strtoll10.c my_strtoll10-x86.s \ strxmov.c bmove_upp.c strappend.c strcont.c strend.c \ diff -urN a/strings/Makefile.in b/strings/Makefile.in --- a/strings/Makefile.in 2010-11-10 00:23:45.423000082 +0100 +++ b/strings/Makefile.in 2010-11-10 00:29:17.547000090 +0100 @@ -104,7 +104,7 @@ libmystrings_la_DEPENDENCIES = am__libmystrings_la_SOURCES_DIST = bmove_upp-sparc.s strappend-sparc.s \ strend-sparc.s strinstr-sparc.s strmake-sparc.s strmov-sparc.s \ - strnmov-sparc.s strstr-sparc.s strings-x86.s \ + strnmov-sparc.s strstr-sparc.s strings-x86.S \ longlong2str-x86.s my_strtoll10-x86.s strxmov.c bmove_upp.c \ strappend.c strcont.c strend.c strfill.c strcend.c is_prefix.c \ strstr.c strinstr.c strmake.c strnmov.c strmov.c \ @@ -637,7 +637,7 @@ @ASSEMBLER_sparc32_TRUE@@ASSEMBLER_x86_FALSE@ASRCS = bmove_upp-sparc.s strappend-sparc.s strend-sparc.s strinstr-sparc.s strmake-sparc.s strmov-sparc.s strnmov-sparc.s strstr-sparc.s # Exact one of ASSEMBLER_X -@ASSEMBLER_x86_TRUE@ASRCS = strings-x86.s longlong2str-x86.s my_strtoll10-x86.s +@ASSEMBLER_x86_TRUE@ASRCS = strings-x86.S longlong2str-x86.s my_strtoll10-x86.s # These file MUST all be on the same line!! Otherwise automake # generats a very broken makefile @ASSEMBLER_sparc32_FALSE@@ASSEMBLER_x86_FALSE@CSRCS = strxmov.c bmove_upp.c strappend.c strcont.c strend.c strfill.c strcend.c is_prefix.c strstr.c strinstr.c strmake.c strnmov.c strmov.c longlong2str.c bfill.c bmove.c bmove512.c bchange.c strxnmov.c int2str.c str2int.c r_strinstr.c strtod.c bcmp.c strtol.c strtoul.c strtoll.c strtoull.c llstr.c strnlen.c ctype.c ctype-simple.c ctype-mb.c ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-tis620.c ctype-ujis.c ctype-utf8.c ctype-ucs2.c ctype-uca.c ctype-win1250ch.c ctype-bin.c ctype-latin1.c my_vsnprintf.c xml.c decimal.c ctype-extra.c my_strtoll10.c str_alloc.c my_strchr.c strmov_overlapp.c @@ -649,7 +649,7 @@ EXTRA_DIST = ctype-big5.c ctype-cp932.c ctype-czech.c ctype-eucjpms.c ctype-euc_kr.c ctype-win1250ch.c \ ctype-gb2312.c ctype-gbk.c ctype-sjis.c ctype-utf8.c \ ctype-ucs2.c ctype-uca.c ctype-tis620.c ctype-ujis.c \ - xml.c decimal.c strto.c strings-x86.s \ + xml.c decimal.c strto.c strings-x86.S \ longlong2str.c longlong2str-x86.s longlong2str_asm.c \ my_strtoll10.c my_strtoll10-x86.s \ strxmov.c bmove_upp.c strappend.c strcont.c strend.c \ diff -urN a/strings/strings-x86.S b/strings/strings-x86.S --- a/strings/strings-x86.S 1970-01-01 01:00:00.000000000 +0100 +++ b/strings/strings-x86.S 2010-11-10 00:29:17.547000090 +0100 @@ -0,0 +1,442 @@ +# Copyright (C) 2000 MySQL AB +# 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; version 2 of the License. +# +# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +# Optimized string functions Intel 80x86 (gcc/gas syntax) + + .file "strings.S" + .version "1.01" + +.text + +# Move a alligned, not overlapped, by (long) divided memory area +# Args: to,from,length + +.globl bmove_align + .type bmove_align,@function +bmove_align: + movl %edi,%edx + push %esi + movl 4(%esp),%edi # to + movl 8(%esp),%esi # from + movl 12(%esp),%ecx # length + addw $3,%cx # fix if not divisible with long + shrw $2,%cx + jz .ba_20 + .p2align 4,,7 +.ba_10: + movl -4(%esi,%ecx),%eax + movl %eax,-4(%edi,%ecx) + decl %ecx + jnz .ba_10 +.ba_20: pop %esi + movl %edx,%edi + ret + +.bmove_align_end: + .size bmove_align,.bmove_align_end-bmove_align + + # Move a string from higher to lower + # Arg from_end+1,to_end+1,length + +.globl bmove_upp + .type bmove_upp,@function +bmove_upp: + movl %edi,%edx # Remember %edi + push %esi + movl 8(%esp),%edi # dst + movl 16(%esp),%ecx # length + movl 12(%esp),%esi # source + test %ecx,%ecx + jz .bu_20 + subl %ecx,%esi # To start of strings + subl %ecx,%edi + + .p2align 4,,7 +.bu_10: movb -1(%esi,%ecx),%al + movb %al,-1(%edi,%ecx) + decl %ecx + jnz .bu_10 +.bu_20: pop %esi + movl %edx,%edi + ret + +.bmove_upp_end: + .size bmove_upp,.bmove_upp_end-bmove_upp + + # Append fillchars to string + # Args: dest,len,fill + +.globl strappend + .type strappend,@function +strappend: + pushl %edi + movl 8(%esp),%edi # Memory pointer + movl 12(%esp),%ecx # Length + clrl %eax # Find end of string + repne + scasb + jnz sa_99 # String to long, shorten it + movzb 16(%esp),%eax # Fillchar + decl %edi # Point at end null + incl %ecx # rep made one dec for null-char + + movb %al,%ah # (2) Set up a 32 bit pattern. + movw %ax,%dx # (2) + shll $16,%eax # (3) + movw %dx,%ax # (2) %eax has the 32 bit pattern. + + movl %ecx,%edx # (2) Save the count of bytes. + shrl $2,%ecx # (2) Number of dwords. + rep + stosl # (5 + 5n) + movb $3,%cl # (2) + and %edx,%ecx # (2) Fill in the odd bytes + rep + stosb # Move last bytes if any + +sa_99: movb $0,(%edi) # End of string + popl %edi + ret +.strappend_end: + .size strappend,.strappend_end-strappend + + # Find if string contains any char in another string + # Arg: str,set + # Ret: Pointer to first found char in str + +.globl strcont + .type strcont,@function +strcont: + movl %edi,%edx + pushl %esi + movl 8(%esp),%esi # str + movl 12(%esp),%ecx # set + clrb %ah # For endtest + jmp sc_60 + +sc_10: scasb + jz sc_fo # Found char +sc_20: cmp (%edi),%ah # Test if null + jnz sc_10 # Not end of set yet + incl %esi # Next char in str +sc_60: movl %ecx,%edi # %edi = Set + movb (%esi),%al # Test if this char exist + andb %al,%al + jnz sc_20 # Not end of string + clrl %esi # Return Null +sc_fo: movl %esi,%eax # Char found here + movl %edx,%edi # Restore + popl %esi + ret +.strcont_end: + .size strcont,.strcont_end-strcont + + # Find end of string + # Arg: str + # ret: Pointer to end null + +.globl strend + .type strend,@function +strend: + movl %edi,%edx # Save + movl 4(%esp),%edi # str + clrl %eax # Find end of string + movl %eax,%ecx + decl %ecx # ECX = -1 + repne + scasb + movl %edi,%eax + decl %eax # End of string + movl %edx,%edi # Restore + ret +.strend_end: + .size strend,.strend_end-strend + + # Make a string with len fill-chars and endnull + # Args: dest,len,fill + # Ret: dest+len + +.globl strfill + .type strfill,@function +strfill: + pushl %edi + movl 8(%esp),%edi # Memory pointer + movl 12(%esp),%ecx # Length + movzb 16(%esp),%eax # Fill + + movb %al,%ah # (2) Set up a 32 bit pattern + movw %ax,%dx # (2) + shll $16,%eax # (3) + movw %dx,%ax # (2) %eax has the 32 bit pattern. + + movl %ecx,%edx # (2) Save the count of bytes. + shrl $2,%ecx # (2) Number of dwords. + rep + stosl # (5 + 5n) + movb $3,%cl # (2) + and %edx,%ecx # (2) Fill in the odd bytes + rep + stosb # Move last bytes if any + + movb %cl,(%edi) # End NULL + movl %edi,%eax # End i %eax + popl %edi + ret +.strfill_end: + .size strfill,.strfill_end-strfill + + + # Find a char in or end of a string + # Arg: str,char + # Ret: pointer to found char or NullS + +.globl strcend + .type strcend,@function +strcend: + movl %edi,%edx + movl 4(%esp),%edi # str + movb 8(%esp),%ah # search + clrb %al # for scasb to find end + +se_10: cmpb (%edi),%ah + jz se_20 # Found char + scasb + jnz se_10 # Not end + dec %edi # Not found, point at end of string +se_20: movl %edi,%eax + movl %edx,%edi # Restore + ret +.strcend_end: + .size strcend,.strcend_end-strcend + + # Test if string has a given suffix + +.globl is_prefix + .type is_prefix,@function +is_prefix: + movl %edi,%edx # Save %edi + pushl %esi # and %esi + movl 12(%esp),%esi # get suffix + movl 8(%esp),%edi # s1 + movl $1,%eax # Ok and zero-test +ip_10: cmpb (%esi),%ah + jz suf_ok # End of string/ found suffix + cmpsb # Compare strings + jz ip_10 # Same, possible prefix + xor %eax,%eax # Not suffix +suf_ok: popl %esi + movl %edx,%edi + ret +.is_prefix_end: + .size is_prefix,.is_prefix_end-is_prefix + + # Find a substring in string + # Arg: str,search + +.globl strstr + .type strstr,@function + +strstr: + pushl %edi + pushl %esi + movl 12(%esp),%esi # str + movl 16(%esp),%edi # search + movl %edi,%ecx + incl %ecx # %ecx = search+1 + movb (%edi),%ah # %ah = First char in search + jmp sf_10 + +sf_00: movl %edx,%esi # si = Current str-pos +sf_10: movb (%esi),%al # Test if this char exist + andb %al,%al + jz sf_90 # End of string, didn't find search + incl %esi + cmpb %al,%ah + jnz sf_10 # Didn't find first char, continue + movl %esi,%edx # Save str-pos in %edx + movl %ecx,%edi +sf_20: cmpb $0,(%edi) + jz sf_fo # Found substring + cmpsb + jz sf_20 # Char ok + jmp sf_00 # Next str-pos + +sf_90: movl $1,%edx # Return Null +sf_fo: movl %edx,%eax # Char found here + decl %eax # Pointed one after + popl %esi + popl %edi + ret +.strstr_end: + .size strstr,.strstr_end-strstr + + + # Find a substring in string, return index + # Arg: str,search + +.globl strinstr + .type strinstr,@function + +strinstr: + pushl %ebp + movl %esp,%ebp +#ifdef __PIC__ +# undef __i686 /* gcc define gets in our way */ + pushl %ebx + call __i686.get_pc_thunk.bx + addl $_GLOBAL_OFFSET_TABLE_, %ebx +#endif + pushl 12(%ebp) # search + pushl 8(%ebp) # str +#ifdef __PIC__ + call strstr@PLT /*We need to be sure that ebx point to the got*/ +#else + call strstr +#endif + add $8,%esp + or %eax,%eax + jz si_99 # Not found, return NULL + sub 8(%ebp),%eax # Pos from start + inc %eax # And first pos = 1 +si_99: +#ifdef __PIC__ + popl %ebx +#endif + popl %ebp + ret +.strinstr_end: + .size strinstr,.strinstr_end-strinstr + + # Make a string of len length from another string + # Arg: dst,src,length + # ret: end of dst + +.globl strmake + .type strmake,@function + +strmake: + pushl %edi + pushl %esi + mov 12(%esp),%edi # dst + movl $0,%edx + movl 20(%esp),%ecx # length + movl 16(%esp),%esi # src + cmpl %edx,%ecx + jz sm_90 +sm_00: movb (%esi,%edx),%al + cmpb $0,%al + jz sm_90 + movb %al,(%edi,%edx) + incl %edx + cmpl %edx,%ecx + jnz sm_00 +sm_90: movb $0,(%edi,%edx) +sm_99: lea (%edi,%edx),%eax # Return pointer to end null + pop %esi + pop %edi + ret +.strmake_end: + .size strmake,.strmake_end-strmake + + # Move a string with max len chars + # arg: dst,src,len + # ret: pos to first null or dst+len + +.globl strnmov + .type strnmov,@function +strnmov: + pushl %edi + pushl %esi + movl 12(%esp),%edi # dst + movl 16(%esp),%esi # src + movl 20(%esp),%ecx # Length of memory-area + jecxz snm_99 # Nothing to do + clrb %al # For test of end-null + +snm_10: cmpb (%esi),%al # Next char to move + movsb # move arg + jz snm_20 # last char, fill with null + loop snm_10 # Continue moving + incl %edi # Point two after last +snm_20: decl %edi # Point at first null (or last+1) +snm_99: movl %edi,%eax # Pointer at last char + popl %esi + popl %edi + ret +.strnmov_end: + .size strnmov,.strnmov_end-strnmov + + +.globl strmov + .type strmov,@function +strmov: + movl %esi,%ecx # Save old %esi and %edi + movl %edi,%edx + movl 8(%esp),%esi # get source pointer (s2) + movl 4(%esp),%edi # %edi -> s1 +smo_10: movb (%esi),%al + movsb # move arg + andb %al,%al + jnz smo_10 # Not last + movl %edi,%eax + dec %eax + movl %ecx,%esi # Restore + movl %edx,%edi + ret +.strmov_end: + .size strmov,.strmov_end-strmov + +.globl strxmov + .type strxmov,@function +strxmov: + movl %ebx,%edx # Save %ebx, %esi and %edi + mov %esi,%ecx + push %edi + leal 8(%esp),%ebx # Get destination + movl (%ebx),%edi + xorb %al,%al + jmp next_str # Handle source ebx+4 + +start_str: + movsb + cmpb -1(%edi),%al + jne start_str + decl %edi # Don't copy last null + +next_str: + addl $4,%ebx + movl (%ebx),%esi + orl %esi,%esi + jne start_str + movb %al,0(%edi) # Force last to ASCII 0 + + movl %edi,%eax # Return ptr to ASCII 0 + pop %edi # Restore registers + movl %ecx,%esi + movl %edx,%ebx + ret +.strxmov_end: + .size strxmov,.strxmov_end-strxmov + +#ifdef __PIC__ + .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits + .globl __i686.get_pc_thunk.bx + .hidden __i686.get_pc_thunk.bx + .type __i686.get_pc_thunk.bx,@function +__i686.get_pc_thunk.bx: + movl (%esp), %ebx + ret +#endif + .section .note.GNU-stack,"",@progbits +