diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2005-05-04 06:22:30 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-05-04 06:22:30 +0000 |
| commit | 1ad9da69c607236f70689dab39a7d937398d2f10 (patch) | |
| tree | c6f6a3a9f909389ced37fa6d3e5b229bc98b001a /sysdeps/i386/strrchr.S | |
| parent | 5085cd1fa10472c6e484e0cb6cb06417ca69de1d (diff) | |
* sysdeps/i386/add_n.S: Add call frame information.cvs/fedora-glibc-20050504T0728
* sysdeps/i386/addmul_1.S: Likewise.
* sysdeps/i386/bsd-setjmp.S: Likewise.
* sysdeps/i386/lshift.S: Likewise.
* sysdeps/i386/memchr.S: Likewise.
* sysdeps/i386/memcmp.S: Likewise.
* sysdeps/i386/mul_1.S: Likewise.
* sysdeps/i386/rawmemchr.S: Likewise.
* sysdeps/i386/rshift.S: Likewise.
* sysdeps/i386/stpncpy.S: Likewise.
* sysdeps/i386/strchr.S: Likewise.
* sysdeps/i386/strchrnul.S: Likewise.
* sysdeps/i386/strcspn.S: Likewise.
* sysdeps/i386/strpbrk.S: Likewise.
* sysdeps/i386/strrchr.S: Likewise.
* sysdeps/i386/strspn.S: Likewise.
* sysdeps/i386/strtok.S: Likewise.
* sysdeps/i386/sub_n.S: Likewise.
* sysdeps/i386/submul_1.S: Likewise.
* sysdeps/i386/elf/bsd-setjmp.S: Likewise.
* sysdeps/i386/i486/strcat.S: Likewise.
* sysdeps/i386/i586/add_n.S: Likewise.
* sysdeps/i386/i586/addmul_1.S: Likewise.
* sysdeps/i386/i586/lshift.S: Likewise.
* sysdeps/i386/i586/memcpy.S: Likewise.
* sysdeps/i386/i586/memset.S: Likewise.
* sysdeps/i386/i586/mul_1.S: Likewise.
* sysdeps/i386/i586/rshift.S: Likewise.
* sysdeps/i386/i586/strchr.S: Likewise.
* sysdeps/i386/i586/strcpy.S: Likewise.
* sysdeps/i386/i586/sub_n.S: Likewise.
* sysdeps/i386/i586/submul_1.S: Likewise.
* sysdeps/i386/i686/add_n.S: Likewise.
* sysdeps/i386/i686/memcmp.S: Likewise.
* sysdeps/i386/i686/memmove.S: Likewise.
* sysdeps/i386/i686/mempcpy.S: Likewise.
* sysdeps/i386/i686/memset.S: Likewise.
* sysdeps/i386/i686/strtok.S: Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/semtimedop.S: Likewise.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Adjust for gcc 4.
Diffstat (limited to 'sysdeps/i386/strrchr.S')
| -rw-r--r-- | sysdeps/i386/strrchr.S | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sysdeps/i386/strrchr.S b/sysdeps/i386/strrchr.S index 0fd95b54f5..98c0c08bd0 100644 --- a/sysdeps/i386/strrchr.S +++ b/sysdeps/i386/strrchr.S @@ -1,6 +1,6 @@ /* strrchr (str, ch) -- Return pointer to last occurrence of CH in STR. For Intel 80x86, x>=3. - Copyright (C) 1994-1997, 2000, 2003 Free Software Foundation, Inc. + Copyright (C) 1994-1997, 2000, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu> Some optimisations by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au> @@ -35,10 +35,14 @@ ENTRY (BP_SYM (strrchr)) ENTER pushl %edi /* Save callee-safe registers used here. */ + cfi_adjust_cfa_offset (4) + cfi_rel_offset (edi, 0) pushl %esi + cfi_adjust_cfa_offset (4) xorl %eax, %eax movl STR(%esp), %esi + cfi_rel_offset (esi, 0) movl CHR(%esp), %ecx CHECK_BOUNDS_LOW (%esi, STR(%esp)) @@ -299,20 +303,20 @@ L(21): addl $4, %esi returned. */ L(20): cmpb %cl, %dl /* is first byte == C? */ - jne L(24) /* no => skip */ + jne L(24) /* no => skip */ movl %esi, %eax /* store address as result */ L(24): testb %dl, %dl /* is first byte == NUL? */ jz L(2) /* yes => return */ cmpb %cl, %dh /* is second byte == C? */ - jne L(25) /* no => skip */ + jne L(25) /* no => skip */ leal 1(%esi), %eax /* store address as result */ L(25): testb %dh, %dh /* is second byte == NUL? */ jz L(2) /* yes => return */ shrl $16,%edx /* make upper bytes accessible */ cmpb %cl, %dl /* is third byte == C */ - jne L(26) /* no => skip */ + jne L(26) /* no => skip */ leal 2(%esi), %eax /* store address as result */ L(26): testb %dl, %dl /* is third byte == NUL */ jz L(2) /* yes => return */ @@ -324,7 +328,11 @@ L(26): testb %dl, %dl /* is third byte == NUL */ L(2): CHECK_BOUNDS_HIGH (%eax, STR(%esp), jb) RETURN_BOUNDED_POINTER (STR(%esp)) popl %esi /* restore saved register content */ + cfi_adjust_cfa_offset (-4) + cfi_restore (esi) popl %edi + cfi_adjust_cfa_offset (-4) + cfi_restore (edi) LEAVE RET_PTR |