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|
As part of fixing the TEXTRELs, we must remove this file seperately because
applying a move of .s -> .S on a case-insensitive file-system will cause patch
to break.
diff -urN a/strings/strings-x86.s b/strings/strings-x86.s
--- a/strings/strings-x86.s 2010-11-09 21:29:32.192000076 +0100
+++ b/strings/strings-x86.s 1970-01-01 01:00:00.000000000 +0100
@@ -1,416 +0,0 @@
-# Copyright (c) 2000, 2002-2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
-
-# Optimized string functions Intel 80x86 (gcc/gas syntax)
-
- .file "strings.s"
- .version "1.00"
-
-.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
- pushl 12(%ebp) # search
- pushl 8(%ebp) # str
- call strstr
- 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: 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
|