[PATCH] Fix ____longjmp_chk for s390/s390x

[Andreas Schwab]

The logic was backwards, causing the test to fail.

Andreas.

2010-01-20  Andreas Schwab  <schwab@redhat.com>

	* sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
	(CHECK_SP): Fix check for alternate stack.
	* sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
	(CHECK_SP): Likewise.

diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
index b28e587..f2c1518 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
@@ -46,7 +46,7 @@
 	    {								\
 	      if ((oss.ss_flags & SS_ONSTACK) == 0			\
 		  || ((uintptr_t) (oss.ss_sp + oss.ss_size) - new_sp	\
-		      >= oss.ss_size))					\
+		      < oss.ss_size))					\
 		__fortify_fail ("longjmp causes uninitialized stack frame");\
 	    }								\
 	}								\
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
index dcf58fb..261be25 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
@@ -46,7 +46,7 @@
 	    {								\
 	      if ((oss.ss_flags & SS_ONSTACK) == 0			\
 		  || ((uintptr_t) (oss.ss_sp + oss.ss_size) - new_sp	\
-		      >= oss.ss_size))					\
+		      < oss.ss_size))					\
 		__fortify_fail ("longjmp causes uninitialized stack frame");\
 	    }								\
 	}								\

-- 
Andreas Schwab, schwab@redhat.com
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