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authorArnaldo Carvalho de Melo <[email protected]>2010-03-30 18:27:39 -0300
committerIngo Molnar <[email protected]>2010-05-13 07:55:29 +0200
commit46db2c3205ca6e24adbb9b038441bc8f65360535 (patch)
tree28a70cdb69e82795b699d3184f51faf7903d1088
parent829e92458532b1dbfeb972435d45bb060cdbf5a3 (diff)
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 <[email protected]> Reported-by: Steven Rostedt <[email protected]> Cc: Frédéric Weisbecker <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
-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;