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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)
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* 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 cd1a84558f..8ca2c9dccc 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))