summaryrefslogtreecommitdiff
path: root/tools/include/asm/alternative.h
diff options
context:
space:
mode:
Diffstat (limited to 'tools/include/asm/alternative.h')
-rw-r--r--tools/include/asm/alternative.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/asm/alternative.h b/tools/include/asm/alternative.h
index 7ce02a223732..8e548ac8f740 100644
--- a/tools/include/asm/alternative.h
+++ b/tools/include/asm/alternative.h
@@ -2,8 +2,18 @@
#ifndef _TOOLS_ASM_ALTERNATIVE_ASM_H
#define _TOOLS_ASM_ALTERNATIVE_ASM_H
+#if defined(__s390x__)
+#ifdef __ASSEMBLY__
+.macro ALTERNATIVE oldinstr, newinstr, feature
+ \oldinstr
+.endm
+#endif
+#else
+
/* Just disable it so we can build arch/x86/lib/memcpy_64.S for perf bench: */
#define ALTERNATIVE #
#endif
+
+#endif