diff options
Diffstat (limited to 'sysdeps/i386/strpbrk.S')
| -rw-r--r-- | sysdeps/i386/strpbrk.S | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/sysdeps/i386/strpbrk.S b/sysdeps/i386/strpbrk.S index 59d65540ab..dab1700f15 100644 --- a/sysdeps/i386/strpbrk.S +++ b/sysdeps/i386/strpbrk.S @@ -23,6 +23,7 @@ #include <sysdep.h> #include "asm-syntax.h" +#include "bp-sym.h" #include "bp-asm.h" #define PARMS LINKAGE /* no space for saved regs */ @@ -31,11 +32,12 @@ #define STOP STR+PTR_SIZE .text -ENTRY (strpbrk) +ENTRY (BP_SYM (strpbrk)) ENTER movl STR(%esp), %edx movl STOP(%esp), %eax + CHECK_BOUNDS_LOW (%edx, STR(%esp)) /* First we create a table with flags for all possible characters. For the ASCII (7bit/8bit) or ISO-8859-X character sets which are @@ -172,10 +174,17 @@ L(5): incl %eax L(4): addl $256, %esp /* remove stopset */ + CHECK_BOUNDS_HIGH (%eax, STR(%esp), jb) orb %cl, %cl /* was last character NUL? */ - jnz L(7) /* no => return pointer */ - xorl %eax, %eax /* return NULL */ + jnz L(7) /* no => return pointer */ + xorl %eax, %eax + RETURN_NULL_BOUNDED_POINTER -L(7): LEAVE + LEAVE RET_PTR -END (strpbrk) + +L(7): RETURN_BOUNDED_POINTER (STR(%esp)) + + LEAVE + RET_PTR +END (BP_SYM (strpbrk)) |