Messages in this thread Patch in this message | | | Date | Tue, 21 Aug 2012 09:00:35 -0700 | From | tip-bot for Cody P Schafer <> | Subject | [tip:perf/core] perf symbols: Correct comment wrt kallsyms loading |
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Commit-ID: 72f86204419e1b83f18b9bc2c97141a52dc534d2 Gitweb: http://git.kernel.org/tip/72f86204419e1b83f18b9bc2c97141a52dc534d2 Author: Cody P Schafer <cody@linux.vnet.ibm.com> AuthorDate: Fri, 10 Aug 2012 15:22:47 -0700 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Mon, 13 Aug 2012 14:10:10 -0300
perf symbols: Correct comment wrt kallsyms loading
In kallsyms_parse() when calling process_symbol() (a callback argument to kallsyms_parse()), we pass start as both start & end (ie: start=start, end=start).
In map__process_kallsym_symbol(), the length is calculated as 'end - start + 1', making the length 1, not 0.
Essentially, start & end define an inclusive range.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Cc: David Hansen <dave@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Matt Hellsley <matthltc@us.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1344637382-22789-2-git-send-email-cody@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/symbol.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 42c0d94..9f181a8 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -605,7 +605,7 @@ int kallsyms__parse(const char *filename, void *arg, /* * module symbols are not sorted so we add all - * symbols with zero length and rely on + * symbols, setting length to 1, and rely on * symbols__fixup_end() to fix it up. */ err = process_symbol(arg, symbol_name,
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