aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/i386/stpncpy.S
diff options
context:
space:
mode:
authorGreg McGary <greg@mcgary.org>2000-06-26 22:15:00 +0000
committerGreg McGary <greg@mcgary.org>2000-06-26 22:15:00 +0000
commit2fc0882697f83d4ef8fe7090c66a27d9396095ba (patch)
tree3c5fbeca60aec00a55bdd6443735e2cd241f9c98 /sysdeps/i386/stpncpy.S
parentc2eee429d3cbb5e81b84bca109db19b119dbedc2 (diff)
downloadglibc-2fc0882697f83d4ef8fe7090c66a27d9396095ba.zip
glibc-2fc0882697f83d4ef8fe7090c66a27d9396095ba.tar.gz
glibc-2fc0882697f83d4ef8fe7090c66a27d9396095ba.tar.bz2
* sysdeps/i386/add_n.S: Wrap entry-point symbol in BP_SYM ().
Check bounds of arguments. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.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/rshift.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i686/add_n.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memcmp.S: Likewise. * sysdeps/i386/rawmemchr.S: Likewise. * sysdeps/i386/i586/bzero.S: Likewise. * sysdeps/i386/i586/memcpy.S: Likewise. * sysdeps/i386/i586/mempcpy.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i686/bzero.S: Likewise. * sysdeps/i386/i686/memcpy.S: Likewise. * sysdeps/i386/i686/mempcpy.S: Likewise. * sysdeps/i386/i686/memset.S: Likewise. * sysdeps/i386/stpcpy.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/strtok_r.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strcpy.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i686/strcmp.S: Likewise. * sysdeps/i386/i686/strtok.S: Likewise. * sysdeps/i386/i686/strtok_r.S: Likewise. * sysdeps/i386/fpu/fegetenv.c: Wrap symbol names with BP_SYM (). * sysdeps/i386/fpu/fesetenv.c: Likewise. * sysdeps/i386/fpu/feupdateenv.c: Likewise. * sysdeps/i386/fpu/fgetexcptflg.c: Likewise. * sysdeps/i386/fpu/fsetexcptflg.c: Likewise. * sysdeps/i386/add_n.S: Wrap entry-point symbol in BP_SYM (). Check bounds of arguments. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.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/rshift.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i686/add_n.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memcmp.S: Likewise. * sysdeps/i386/rawmemchr.S: Likewise. * sysdeps/i386/i586/bzero.S: Likewise. * sysdeps/i386/i586/memcpy.S: Likewise. * sysdeps/i386/i586/mempcpy.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i686/bzero.S: Likewise. * sysdeps/i386/i686/memcpy.S: Likewise. * sysdeps/i386/i686/mempcpy.S: Likewise. * sysdeps/i386/i686/memset.S: Likewise. * sysdeps/i386/stpcpy.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/strtok_r.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strcpy.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i686/strcmp.S: Likewise. * sysdeps/i386/i686/strtok.S: Likewise. * sysdeps/i386/i686/strtok_r.S: Likewise. * sysdeps/i386/fpu/fegetenv.c: Wrap symbol names with BP_SYM (). * sysdeps/i386/fpu/fesetenv.c: Likewise. * sysdeps/i386/fpu/feupdateenv.c: Likewise. * sysdeps/i386/fpu/fgetexcptflg.c: Likewise. * sysdeps/i386/fpu/fsetexcptflg.c: Likewise.
Diffstat (limited to 'sysdeps/i386/stpncpy.S')
-rw-r--r--sysdeps/i386/stpncpy.S18
1 files changed, 14 insertions, 4 deletions
diff --git a/sysdeps/i386/stpncpy.S b/sysdeps/i386/stpncpy.S
index cd1a845..8ca2c9d 100644
--- a/sysdeps/i386/stpncpy.S
+++ b/sysdeps/i386/stpncpy.S
@@ -26,6 +26,7 @@
#include <sysdep.h>
#include "asm-syntax.h"
+#include "bp-sym.h"
#include "bp-asm.h"
#define PARMS LINKAGE+4 /* space for 1 saved reg */
@@ -35,7 +36,7 @@
#define LEN SRC+PTR_SIZE
.text
-ENTRY (__stpncpy)
+ENTRY (BP_SYM (__stpncpy))
ENTER
pushl %esi
@@ -43,6 +44,8 @@ ENTRY (__stpncpy)
movl DEST(%esp), %eax
movl SRC(%esp), %esi
movl LEN(%esp), %ecx
+ CHECK_BOUNDS_LOW (%eax, DEST(%esp))
+ CHECK_BOUNDS_LOW (%esi, SRC(%esp))
subl %eax, %esi /* magic: reduce number of loop variants
to one using addressing mode */
@@ -137,10 +140,17 @@ L(8):
L(3): decl %ecx /* all bytes written? */
jnz L(8) /* no, then again */
-L(9): popl %esi /* restore saved register content */
+L(9):
+#if __BOUNDED_POINTERS__
+ addl %eax, %esi /* undo magic: %esi now points beyond end of SRC */
+ CHECK_BOUNDS_HIGH (%esi, SRC(%esp), jb)
+ CHECK_BOUNDS_HIGH (%eax, DEST(%esp), jb)
+ RETURN_BOUNDED_POINTER (DEST(%esp))
+#endif
+ popl %esi /* restore saved register content */
LEAVE
RET_PTR
-END (__stpncpy)
+END (BP_SYM (__stpncpy))
-weak_alias (__stpncpy, stpncpy)
+weak_alias (BP_SYM (__stpncpy), BP_SYM (stpncpy))