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perf tools: add NO_BACKTRACE for application self-debugging

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perf has support for self-debugging by defining dump_stack function.
This function uses backtrace and backtrace_symbols functions defined as
GNU extensions.

In Android, bionic does not offer support for these functions and
compilation will fail with the following error:

target  C: libperf <= tools/perf/util/util.c
tools/perf/util/util.c:4:22: fatal error: execinfo.h: No such file or directory
compilation terminated.

Add a compile-time option (NO_BACKTRACE) to enable or disable
self-debugging functionality in perf. This can also help in debugging
since it offers the possibility to turn on/off printing the backtrace.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347065004-15306-12-git-send-email-irina.tirdea@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Irina Tirdea
2012-09-08 03:43:23 +03:00
committed by Arnaldo Carvalho de Melo
parent 9612ef6716
commit c9f08bee50
3 changed files with 28 additions and 0 deletions
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14
tools/perf/config/feature-tests.mak
View File

@@ -179,3 +179,17 @@ int main(void)
}
endef
endif
ifndef NO_BACKTRACE
define SOURCE_BACKTRACE
#include <execinfo.h>
#include <stdio.h>
int main(void)
{
backtrace(NULL, 0);
backtrace_symbols(NULL, 0);
return 0;
}
endef
endif