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Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S')
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
index aa1f05211c..268f36e713 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
@@ -58,6 +58,9 @@ ENTRY(__setcontext)
ld %f13,SC_FPRS+104(%r5)
ld %f14,SC_FPRS+112(%r5)
ld %f15,SC_FPRS+120(%r5)
+
+ /* Don't touch %a0 and %a1, used for thread purposes. */
+ lam %a2,%a15,SC_ACRS+8(%r5)
/* Load general purpose registers. */
lmg %r0,%r15,SC_GPRS(%r5)