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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-11 13:46:54 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-11 08:29:13 -0700 |
| commit | b0fac02370cffad956ff3de5e8ed4df7e7b875d7 (patch) | |
| tree | f7db1d196a065398bfa3376a15ced67cda3f6a8c | |
| parent | 099ce8f4712dcff975ed7619f831b4df95aac773 (diff) | |
| download | linux-stable-b0fac02370cffad956ff3de5e8ed4df7e7b875d7.tar.gz linux-stable-b0fac02370cffad956ff3de5e8ed4df7e7b875d7.tar.bz2 linux-stable-b0fac02370cffad956ff3de5e8ed4df7e7b875d7.zip | |
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>
| -rw-r--r-- | include/linux/linkage.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/linkage.h b/include/linux/linkage.h index b163c5c40dbc..2119610b24f8 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 |