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| author | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2013-03-03 17:10:55 +0000 |
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| committer | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2013-03-03 17:10:55 +0000 |
| commit | d15f124ff59606604c0243ee19cd67bc99ecd09f (patch) | |
| tree | f0b18e431b15b797d5f5dc980928cd1a26b8f74a /libc/sysdeps/i386/strchr.S | |
| parent | c1078e9067234e88d5c1ca8af18ae67b64141d66 (diff) | |
| download | eglibc2-d15f124ff59606604c0243ee19cd67bc99ecd09f.tar.gz | |
Merge changes between r22241 and r22552 from /fsf/trunk.
git-svn-id: svn://svn.eglibc.org/trunk@22553 7b3dc134-2b1b-0410-93df-9e9f96275f8d
Diffstat (limited to 'libc/sysdeps/i386/strchr.S')
| -rw-r--r-- | libc/sysdeps/i386/strchr.S | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/libc/sysdeps/i386/strchr.S b/libc/sysdeps/i386/strchr.S index b0ba99b42..666c7498f 100644 --- a/libc/sysdeps/i386/strchr.S +++ b/libc/sysdeps/i386/strchr.S @@ -21,24 +21,20 @@ #include <sysdep.h> #include "asm-syntax.h" -#include "bp-sym.h" -#include "bp-asm.h" -#define PARMS LINKAGE+4 /* space for 1 saved reg */ +#define PARMS 4+4 /* space for 1 saved reg */ #define RTN PARMS -#define STR RTN+RTN_SIZE -#define CHR STR+PTR_SIZE +#define STR RTN +#define CHR STR+4 .text -ENTRY (BP_SYM (strchr)) - ENTER +ENTRY (strchr) pushl %edi /* Save callee-safe registers used here. */ cfi_adjust_cfa_offset (4) cfi_rel_offset (edi, 0) movl STR(%esp), %eax movl CHR(%esp), %edx - CHECK_BOUNDS_LOW (%eax, STR(%esp)) /* At the moment %edx contains C. What we need for the algorithm is C in all bytes of the dword. Avoid @@ -243,13 +239,11 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */ L(2): /* Return NULL. */ xorl %eax, %eax - RETURN_NULL_BOUNDED_POINTER popl %edi /* restore saved register content */ cfi_adjust_cfa_offset (-4) cfi_restore (edi) - LEAVE - RET_PTR + ret cfi_adjust_cfa_offset (4) cfi_rel_offset (edi, 0) @@ -285,15 +279,12 @@ L(7): testb %cl, %cl /* is first byte C? */ incl %eax L(6): - CHECK_BOUNDS_HIGH (%eax, STR(%esp), jb) - RETURN_BOUNDED_POINTER (STR(%esp)) popl %edi /* restore saved register content */ cfi_adjust_cfa_offset (-4) cfi_restore (edi) - LEAVE - RET_PTR -END (BP_SYM (strchr)) + ret +END (strchr) -weak_alias (BP_SYM (strchr), BP_SYM (index)) +weak_alias (strchr, index) libc_hidden_builtin_def (strchr) |