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authorHeiko Carstens <heiko.carstens@de.ibm.com>2006-07-03 11:24:06 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-04 02:26:58 +0400
commitb02454f43578b24bc8b8ab54a239156841f56f6d (patch)
treea3d41cde84512360c70916ceb75d0fc89db0df22 /include/linux/kallsyms.h
parentdada0769b95602ae791b9c4cd1cbecfc367f00a9 (diff)
downloadlinux-b02454f43578b24bc8b8ab54a239156841f56f6d.tar.xz
[PATCH] lockdep: special s390 print_symbol() version
Have a special version of print_symbol() for s390 which clears the most significant bit of addr before calling __print_symbol(). This seems to be better than checking/changing each place in the kernel that saves an instruction pointer. Without this the output would look like: hardirqs last enabled at (30907): [<80018c6a>] 0x80018c6a hardirqs last disabled at (30908): [<8001e48c>] 0x8001e48c softirqs last enabled at (30904): [<8001dc96>] 0x8001dc96 softirqs last disabled at (30897): [<8001dc50>] 0x8001dc50 instead of this: hardirqs last enabled at (19421): [<80018c72>] cpu_idle+0x176/0x1c4 hardirqs last disabled at (19422): [<8001e494>] io_no_vtime+0xa/0x1a softirqs last enabled at (19418): [<8001dc9e>] do_softirq+0xa6/0xe8 softirqs last disabled at (19411): [<8001dc58>] do_softirq+0x60/0xe8 Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/kallsyms.h')
-rw-r--r--include/linux/kallsyms.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 54e2549f96ba..ad71ac053d6e 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -57,10 +57,11 @@ do { \
#define print_fn_descriptor_symbol(fmt, addr) print_symbol(fmt, addr)
#endif
-#define print_symbol(fmt, addr) \
-do { \
- __check_printsym_format(fmt, ""); \
- __print_symbol(fmt, addr); \
-} while(0)
+static inline void print_symbol(const char *fmt, unsigned long addr)
+{
+ __check_printsym_format(fmt, "");
+ __print_symbol(fmt, (unsigned long)
+ __builtin_extract_return_addr((void *)addr));
+}
#endif /*_LINUX_KALLSYMS_H*/