diff options
Diffstat (limited to 'sysdeps/i386/i486/strcat.S')
| -rw-r--r-- | sysdeps/i386/i486/strcat.S | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sysdeps/i386/i486/strcat.S b/sysdeps/i386/i486/strcat.S index c4ab170389..a37511f1c8 100644 --- a/sysdeps/i386/i486/strcat.S +++ b/sysdeps/i386/i486/strcat.S @@ -22,6 +22,7 @@ #include <sysdep.h> #include "asm-syntax.h" +#include "bp-sym.h" #include "bp-asm.h" #define PARMS LINKAGE+4 /* space for 1 saved reg */ @@ -30,13 +31,15 @@ #define SRC DEST+PTR_SIZE .text -ENTRY (strcat) +ENTRY (BP_SYM (strcat)) ENTER pushl %edi /* Save callee-safe register. */ movl DEST(%esp), %edx movl SRC(%esp), %ecx + CHECK_BOUNDS_LOW (%edx, DEST(%esp)) + CHECK_BOUNDS_LOW (%ecx, SRC(%esp)) testb $0xff, (%ecx) /* Is source string empty? */ jz L(8) /* yes => return */ @@ -256,9 +259,11 @@ L(9): movb %al, (%ecx,%edx) /* store first byte of last word */ movb %ah, 3(%ecx,%edx) /* store fourth byte of last word */ -L(8): movl DEST(%esp), %eax /* start address of destination is result */ +L(8): /* GKM FIXME: check high bounds */ + movl DEST(%esp), %eax /* start address of destination is result */ + RETURN_BOUNDED_POINTER (DEST(%esp)) popl %edi /* restore saved register */ LEAVE RET_PTR -END (strcat) +END (BP_SYM (strcat)) |