Messages in this thread Patch in this message | | | Subject | [PATCH][GIT PULL][v3.4] tracing: Fix build breakage without CONFIG_PERF_EVENTS (again) | From | Steven Rostedt <> | Date | Thu, 12 Apr 2012 16:25:00 -0400 |
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Ingo,
Linux mainline compile is broken for archs that can disable CONFIG_PERF_EVENTS. Without this patch, arm fails to build, but with it, it works fine.
The breakage went in during the 3.4 merge window.
-- Steve
Please pull the latest tip/perf/urgent tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git tip/perf/urgent
Head SHA1: 12524b1bcf06b86bba3869772084a5fd7a0db61d
Mark Brown (1): tracing: Fix build breakage without CONFIG_PERF_EVENTS (again)
---- kernel/trace/trace.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) --------------------------- commit 12524b1bcf06b86bba3869772084a5fd7a0db61d Author: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Wed Apr 11 09:20:29 2012 +0100
tracing: Fix build breakage without CONFIG_PERF_EVENTS (again) Today's -next fails to link for me: kernel/built-in.o:(.data+0x178e50): undefined reference to `perf_ftrace_event_register' It looks like multiple fixes have been merged for the issue fixed by commit fa73dc9 (tracing: Fix build breakage without CONFIG_PERF_EVENTS) though I can't identify the other changes that have gone in at the minute, it's possible that the changes which caused the breakage fixed by the previous commit got dropped but the fix made it in. Link: http://lkml.kernel.org/r/1334132429-6091-1-git-send-email-broonie@opensource.wolfsonmicro.com Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 95059f0..ff639ca 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -836,11 +836,15 @@ extern const char *__stop___trace_bprintk_fmt[]; filter) #include "trace_entries.h" +#ifdef CONFIG_PERF_EVENTS #ifdef CONFIG_FUNCTION_TRACER int perf_ftrace_event_register(struct ftrace_event_call *call, enum trace_reg type, void *data); #else #define perf_ftrace_event_register NULL #endif /* CONFIG_FUNCTION_TRACER */ +#else +#define perf_ftrace_event_register NULL +#endif /* CONFIG_PERF_EVENTS */ #endif /* _LINUX_KERNEL_TRACE_H */
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