diff options
Diffstat (limited to 'sysdeps/i386/memchr.S')
| -rw-r--r-- | sysdeps/i386/memchr.S | 33 |
1 files changed, 8 insertions, 25 deletions
diff --git a/sysdeps/i386/memchr.S b/sysdeps/i386/memchr.S index 53cba10097..67995002ed 100644 --- a/sysdeps/i386/memchr.S +++ b/sysdeps/i386/memchr.S @@ -28,18 +28,15 @@ #include <sysdep.h> #include "asm-syntax.h" -#include "bp-sym.h" -#include "bp-asm.h" -#define PARMS LINKAGE+8 /* space for 2 saved regs */ +#define PARMS 4+8 /* space for 2 saved regs */ #define RTN PARMS -#define STR RTN+RTN_SIZE -#define CHR STR+PTR_SIZE +#define STR RTN +#define CHR STR+4 #define LEN CHR+4 .text -ENTRY (BP_SYM (__memchr)) - ENTER +ENTRY (__memchr) /* Save callee-safe registers used in this function. */ pushl %esi @@ -53,7 +50,6 @@ ENTRY (BP_SYM (__memchr)) movl CHR(%esp), %edx /* c: byte we are looking for. */ movl LEN(%esp), %esi /* len: length of memory block. */ cfi_rel_offset (esi, 4) - CHECK_BOUNDS_LOW (%eax, STR(%esp)) /* If my must not test more than three characters test them one by one. This is especially true for 0. */ @@ -312,28 +308,15 @@ L(8): testb %cl, %cl /* test first byte in dword */ incl %eax /* increment source pointer */ /* No further test needed we we know it is one of the four bytes. */ -L(9): -#if __BOUNDED_POINTERS__ - CHECK_BOUNDS_HIGH (%eax, STR(%esp), jb) - /* If RTN pointer is phony, don't copy return value into it. */ - movl RTN(%esp), %ecx - testl %ecx, %ecx - jz L(pop) - RETURN_BOUNDED_POINTER (STR(%esp)) -#endif -L(pop): popl %edi /* pop saved registers */ +L(9): popl %edi /* pop saved registers */ cfi_adjust_cfa_offset (-4) cfi_restore (edi) popl %esi cfi_adjust_cfa_offset (-4) cfi_restore (esi) - LEAVE - RET_PTR -END (BP_SYM (__memchr)) + ret +END (__memchr) -weak_alias (BP_SYM (__memchr), BP_SYM (memchr)) -#if !__BOUNDED_POINTERS__ -weak_alias (__memchr, __ubp_memchr) -#endif +weak_alias (__memchr, memchr) libc_hidden_builtin_def (memchr) |