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authorHeiko Carstens <heiko.carstens@de.ibm.com>2008-04-11 13:46:54 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-11 08:29:13 -0700
commitb0fac02370cffad956ff3de5e8ed4df7e7b875d7 (patch)
treef7db1d196a065398bfa3376a15ced67cda3f6a8c /include/linux/linkage.h
parent099ce8f4712dcff975ed7619f831b4df95aac773 (diff)
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Fix "$(AS) -traditional" compile breakage caused by asmlinkage_protect
git commit 54a015104136974262afa4b8ddd943ea70dec8a2 ("asmlinkage_protect replaces prevent_tail_call") causes this build failure on s390: AS arch/s390/kernel/entry64.o In file included from arch/s390/kernel/entry64.S:14: include/linux/linkage.h:34: error: syntax error in macro parameter list make[1]: *** [arch/s390/kernel/entry64.o] Error 1 make: *** [arch/s390/kernel] Error 2 and some other architectures. The reason is that some architectures add the "-traditional" flag to the invocation of $(AS), which disables variadic macro argument support. So just surround the new define with an #ifndef __ASSEMBLY__ to prevent any side effects on asm code. Cc: Roland McGrath <roland@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/linkage.h')
-rw-r--r--include/linux/linkage.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index b163c5c..2119610 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -30,9 +30,12 @@
* protection to work (ie no more work that the compiler might
* end up needing stack temporaries for).
*/
+/* Assembly files may be compiled with -traditional .. */
+#ifndef __ASSEMBLY__
#ifndef asmlinkage_protect
# define asmlinkage_protect(n, ret, args...) do { } while (0)
#endif
+#endif
#ifndef __ALIGN
#define __ALIGN .align 4,0x90
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