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authorUlrich Drepper <drepper@redhat.com>2007-09-15 22:24:03 +0000
committerUlrich Drepper <drepper@redhat.com>2007-09-15 22:24:03 +0000
commit9bdfff60008403ff693ccc71da5957a4e57bfc25 (patch)
treecb7de7f1f3466c4ecd822ac3dc8e59b9fbff7d38 /sysdeps/i386
parentab905672b7afba3f862ca6b84921b497269b26ab (diff)
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* sysdeps/i386/i586/memcpy.S (__memcpy_chk): New definition.
* sysdeps/i386/i586/mempcpy.S (__memcpy_chk): New definition. * sysdeps/i386/i586/memset.S (__memset_chk): New definition.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/i586/memcpy.S7
-rw-r--r--sysdeps/i386/i586/mempcpy.S1
-rw-r--r--sysdeps/i386/i586/memset.S7
3 files changed, 15 insertions, 0 deletions
diff --git a/sysdeps/i386/i586/memcpy.S b/sysdeps/i386/i586/memcpy.S
index 6ab457fc55..677a7e6204 100644
--- a/sysdeps/i386/i586/memcpy.S
+++ b/sysdeps/i386/i586/memcpy.S
@@ -35,6 +35,13 @@
#define LEN SRC+PTR_SIZE
.text
+#if defined PIC && !defined NOT_IN_libc
+ENTRY (__memcpy_chk)
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (__memcpy_chk)
+#endif
ENTRY (BP_SYM (memcpy))
ENTER
diff --git a/sysdeps/i386/i586/mempcpy.S b/sysdeps/i386/i586/mempcpy.S
index 0c9520e3b4..f492be7ca0 100644
--- a/sysdeps/i386/i586/mempcpy.S
+++ b/sysdeps/i386/i586/mempcpy.S
@@ -1,4 +1,5 @@
#define memcpy __mempcpy
+#define __memcpy_chk __mempcpy_chk
#include <sysdeps/i386/i586/memcpy.S>
libc_hidden_def (BP_SYM (__mempcpy))
diff --git a/sysdeps/i386/i586/memset.S b/sysdeps/i386/i586/memset.S
index c21e9f7a71..3295b48e71 100644
--- a/sysdeps/i386/i586/memset.S
+++ b/sysdeps/i386/i586/memset.S
@@ -38,6 +38,13 @@
#endif
.text
+#if defined PIC && !defined NOT_IN_libc && !BZERO_P
+ENTRY (__memset_chk)
+ movl 12(%esp), %eax
+ cmpl %eax, 16(%esp)
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (__memset_chk)
+#endif
ENTRY (BP_SYM (memset))
ENTER