diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-06-30 11:43:17 -0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-30 17:09:30 +0200 |
| commit | f5812a7a336fb952d819e4427b9a2dce02368e82 (patch) | |
| tree | 584b8581f68325c8e98a32df51c5155234e0e362 /tools/perf/util/symbol.h | |
| parent | 57e7986ed142417498155ebcd5eaf617ac37136d (diff) | |
| download | op-kernel-dev-f5812a7a336fb952d819e4427b9a2dce02368e82.zip op-kernel-dev-f5812a7a336fb952d819e4427b9a2dce02368e82.tar.gz | |
perf_counter tools: Adjust only prelinked symbol's addresses
I.e. we can't handle these two kinds of files in the same way:
1) prelinked system library:
[acme@doppio pahole]$ readelf -s /usr/lib64/libdw-0.141.so | egrep 'FUNC.+GLOBAL.+dwfl_report_elf'
278: 00000030450105a0 261 FUNC GLOBAL DEFAULT 12 dwfl_report_elf@@ELFUTILS_0.122
2) not prelinked library with debug information from a -debuginfo package:
[acme@doppio pahole]$ readelf -s /usr/lib/debug/usr/lib64/libdw-0.141.so.debug | egrep 'FUNC.+GLOBAL.+dwfl_report_elf'
629: 00000000000105a0 261 FUNC GLOBAL DEFAULT 12 dwfl_report_elf
[acme@doppio pahole]$
Now the numbers I got for a pahole perf run are in line with
the numbers I get from oprofile.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20090630144317.GB12663@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/symbol.h')
| -rw-r--r-- | tools/perf/util/symbol.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 940b432..2c48ace 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -20,8 +20,9 @@ struct symbol { struct dso { struct list_head node; struct rb_root syms; - unsigned int sym_priv_size; struct symbol *(*find_symbol)(struct dso *, u64 ip); + unsigned int sym_priv_size; + unsigned char prelinked; char name[0]; }; |
