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authorH.J. Lu <hjl.tools@gmail.com>2018-07-15 08:48:40 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-07-15 08:48:54 -0700
commit31e422ca9680bbe412aa56b23f058c10eaee7be8 (patch)
treea607224f4d7b43381ae58b4de26a1d2a03cab3cc
parentfaaee1f07ed25b2779bfd935ffb29f431b80d6d3 (diff)
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x86_64: Undef SHADOW_STACK_POINTER_OFFSET last
Since SHADOW_STACK_POINTER_OFFSET is defined in jmp_buf-ssp.h, we must
undef SHADOW_STACK_POINTER_OFFSET after including <jmp_buf-ssp.h>.

	* sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S: Undef
	SHADOW_STACK_POINTER_OFFSET after including <jmp_buf-ssp.h>.
-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S5
2 files changed, 7 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index c9844826b0..89052e6a9f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-07-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S: Undef
+	SHADOW_STACK_POINTER_OFFSET after including <jmp_buf-ssp.h>.
+
 2018-07-14  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
 	    H.J. Lu  <hongjiu.lu@intel.com>
 
diff --git a/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S b/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
index 7eb26fafca..5d2d275721 100644
--- a/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
+++ b/sysdeps/unix/sysv/linux/x86_64/____longjmp_chk.S
@@ -19,15 +19,14 @@
 #include <jmpbuf-offsets.h>
 #include <asm-syntax.h>
 #include <stap-probe.h>
+#include <sigaltstack-offsets.h>
+#include <jmp_buf-ssp.h>
 
 /* Don't restore shadow stack register if shadow stack isn't enabled.  */
 #if !SHSTK_ENABLED
 # undef SHADOW_STACK_POINTER_OFFSET
 #endif
 
-#include <sigaltstack-offsets.h>
-#include <jmp_buf-ssp.h>
-
 	.section .rodata.str1.1,"aMS",@progbits,1
 	.type	longjmp_msg,@object
 longjmp_msg: