diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2008-04-28 11:13:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 17:58:27 +0200 |
| commit | ed6b9b97f42c091630335bfb71a2931e6f86388b (patch) | |
| tree | 1c003a652308955da0677f8d05b6ad110f5dee48 /include/asm-alpha/bug.h | |
| parent | arch/alpha/kernel/traps.c: use time_* macros (diff) | |
| download | linux-ed6b9b97f42c091630335bfb71a2931e6f86388b.tar.xz linux-ed6b9b97f42c091630335bfb71a2931e6f86388b.zip | |
alpha: teach the compiler that BUG doesn't return
Fix things like this:
security/selinux/netnode.c: In function 'sel_netnode_find':
security/selinux/netnode.c:126: warning: 'idx' may be used uninitialized in this function
security/selinux/netnode.c: In function 'sel_netnode_sid':
security/selinux/netnode.c:225: warning: 'ret' may be used uninitialized in this function
security/selinux/netnode.c:168: warning: 'idx' may be used uninitialized in this function
due to code correctly not expecting BUG() to return.
For some reason this reduces the object code size for that particular file.
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-alpha/bug.h')
| -rw-r--r-- | include/asm-alpha/bug.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/asm-alpha/bug.h b/include/asm-alpha/bug.h index 39a3e2a5017d..695a5ee4b5d3 100644 --- a/include/asm-alpha/bug.h +++ b/include/asm-alpha/bug.h @@ -1,14 +1,24 @@ #ifndef _ALPHA_BUG_H #define _ALPHA_BUG_H +#include <linux/linkage.h> + #ifdef CONFIG_BUG #include <asm/pal.h> /* ??? Would be nice to use .gprel32 here, but we can't be sure that the function loaded the GP, so this could fail in modules. */ -#define BUG() \ - __asm__ __volatile__("call_pal %0 # bugchk\n\t"".long %1\n\t.8byte %2" \ - : : "i" (PAL_bugchk), "i"(__LINE__), "i"(__FILE__)) +static inline void ATTRIB_NORET __BUG(const char *file, int line) +{ + __asm__ __volatile__( + "call_pal %0 # bugchk\n\t" + ".long %1\n\t.8byte %2" + : : "i" (PAL_bugchk), "i"(line), "i"(file)); + for ( ; ; ) + ; +} + +#define BUG() __BUG(__FILE__, __LINE__) #define HAVE_ARCH_BUG #endif |