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Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S')
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index 7d4fee258c..7ad360a3a0 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -59,6 +59,9 @@ ENTRY(__setcontext)
 	ld      %f14,SC_FPRS+112(%r5)
 	ld      %f15,SC_FPRS+120(%r5)
  
+	/* Don't touch %a0, used for thread purposes.  */
+	lam	%a1,%a15,SC_ACRS+4(%r5)
+
 	/* Load general purpose registers.  */
 	lm	%r0,%r15,SC_GPRS(%r5)