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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-03-31 01:27:39 +0400
committerIngo Molnar <mingo@elte.hu>2010-05-13 09:55:29 +0400
commit46db2c3205ca6e24adbb9b038441bc8f65360535 (patch)
tree28a70cdb69e82795b699d3184f51faf7903d1088
parent829e92458532b1dbfeb972435d45bb060cdbf5a3 (diff)
downloadlinux-46db2c3205ca6e24adbb9b038441bc8f65360535.tar.xz
perf record: Add a fallback to the reference relocation symbol
Usually "_text" is enough, but I received reports that its not always available, so fallback to "_stext" for the symbol we use to check if we need to apply any relocation to all the symbols in the kernel symtab, for when, for instance, kexec is being used. Reported-by: Darren Hart <dvhltc@us.ibm.com> Reported-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--tools/perf/builtin-record.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 3b8b6387c47c..f1411e9cdf47 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -563,6 +563,9 @@ static int __cmd_record(int argc, const char **argv)
err = event__synthesize_kernel_mmap(process_synthesized_event,
session, "_text");
+ if (err < 0)
+ err = event__synthesize_kernel_mmap(process_synthesized_event,
+ session, "_stext");
if (err < 0) {
pr_err("Couldn't record kernel reference relocation symbol.\n");
return err;