Namhyung Kim 208e760745 perf report: Fix a bug on "--call-graph none" option ... The patch f9db0d0f1b ("perf callchain: Allow disabling call graphs per event") added an ability to enable/disable callchain recording per event. But it had a problem when the enablement setting is changed at 'perf report' time using -g/--call-graph option. For example, the following scenario will get a segfault. $ perf record -ag sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.500 MB perf.data (2555 samples) ] $ perf report -g none perf: Segmentation fault -------- backtrace -------- perf[0x53a98a] /usr/lib/libc.so.6(+0x335af)[0x7f4e91df95af] This is because callchain_param.sort() callback was not set but it tried to call the function as it had the PERF_SAMPLE_CALLCHAIN bit. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Fixes: f9db0d0f1b ("perf callchain: Allow disabling call graphs per event") Link: http://lkml.kernel.org/r/1443587640-24242-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2015-10-01 09:54:33 -03:00
..
arch	perf tools: Introduce regs_query_register_offset() for x86	2015-09-15 09:48:33 -03:00
bench	perf bench futex: Add lock_pi stresser	2015-07-20 17:49:51 -03:00
config	Merge branch 'perf/urgent' into perf/core, to pick up fixes before applying new changes	2015-09-18 09:24:01 +02:00
Documentation	perf report: Amend documentation about max_stack and synthesized callchains	2015-09-30 18:34:26 -03:00
python	perf python: Make twatch.py use soft dummy event, freq=0	2015-07-29 10:51:45 -03:00
scripts	perf tools: Add more documentation to export-to-postgresql.py script	2015-09-28 16:53:07 -03:00
tests	perf machine: Add method for common kernel_map(FUNCTION) operation	2015-09-30 18:34:29 -03:00
trace/strace/groups	perf trace: Add read/write to the file group	2015-09-04 13:22:06 -03:00
ui	perf hists browser: Use the map to determine if a DSO is being used as a kernel	2015-09-28 15:50:54 -03:00
util	perf report: Fix a bug on "--call-graph none" option	2015-10-01 09:54:33 -03:00
.gitignore	perf tools: Add Intel PT instruction decoder	2015-08-17 11:11:36 -03:00
Build	perf trace: Support 'strace' syscall event groups	2015-07-20 15:16:32 -03:00
builtin-annotate.c	perf env: Rename some leftovers from rename to perf_env	2015-09-14 12:50:20 -03:00
builtin-bench.c	perf bench futex: Add lock_pi stresser	2015-07-20 17:49:51 -03:00
builtin-buildid-cache.c	perf buildid: Introduce sysfs/filename__sprintf_build_id	2015-08-28 14:53:50 -03:00
builtin-buildid-list.c	perf buildid: Introduce sysfs/filename__sprintf_build_id	2015-08-28 14:53:50 -03:00
builtin-data.c	perf data: Support using -f to override perf.data file ownership for 'convert'	2015-04-02 13:18:52 -03:00
builtin-diff.c	perf callchain: Allow disabling call graphs per event	2015-08-12 13:20:28 -03:00
builtin-evlist.c	perf evlist: Support using -f to override perf.data file ownership	2015-04-02 13:18:45 -03:00
builtin-help.c	perf tools: Add the bash completion for listing subsubcommands of perf help	2015-03-19 13:49:39 -03:00
builtin-inject.c	perf inject: Add --strip option to strip out non-synthesized events	2015-09-28 17:19:51 -03:00
builtin-kmem.c	perf machine: Add method for common kernel_map(FUNCTION) operation	2015-09-30 18:34:29 -03:00
builtin-kvm.c	tools lib api fs: Replace debugfs/tracefs objects interface with fs.c	2015-09-14 12:50:15 -03:00
builtin-list.c	perf list: Remove blank lines, headers when piping output	2015-09-30 18:34:38 -03:00
builtin-lock.c	perf machine: Protect the machine->threads with a rwlock	2015-05-08 16:19:27 -03:00
builtin-mem.c	perf mem: Fill in the missing session freeing after an error occurs	2015-07-01 17:53:49 -03:00
builtin-probe.c	perf probe: Fix a segfault when removing uprobe events	2015-09-21 18:01:17 -03:00
builtin-record.c	perf record: Allocate area for sample_id_hdr in a synthesized comm event	2015-10-01 09:54:33 -03:00
builtin-report.c	perf machine: Add method for common kernel_map(FUNCTION) operation	2015-09-30 18:34:29 -03:00
builtin-sched.c	perf sched: Add option to merge like comms to lat output	2015-05-27 12:21:45 -03:00
builtin-script.c	perf script: Make scripting_max_stack value allow for synthesized callchains	2015-09-28 17:09:41 -03:00
builtin-stat.c	perf stat: Quieten failed to read counter message	2015-09-02 16:30:47 -03:00
builtin-timechart.c	perf tools: Elliminate alignment holes	2015-05-18 10:17:33 -03:00
builtin-top.c	perf top: Register idle thread	2015-10-01 09:54:33 -03:00
builtin-trace.c	perf evsel: Propagate error info from tp_format	2015-09-15 09:48:33 -03:00
builtin.h	perf tools: Add new 'perf data' command	2015-02-25 12:42:25 -03:00
command-list.txt	perf tools: Add new 'perf data' command	2015-02-25 12:42:25 -03:00
CREDITS
design.txt	perf tools: Update some code references in design.txt	2014-03-18 18:17:06 -03:00
Makefile	perf build: Fix single target build dependency check	2015-06-22 11:27:09 -03:00
Makefile.perf	tools build: Build fixdep helper from perf and basic libs	2015-09-28 15:50:55 -03:00
MANIFEST	perf tools: Add include/err.h into MANIFEST	2015-09-22 10:47:05 -03:00
perf-archive.sh
perf-completion.sh	perf tools: Avoid confusion with preloaded bash function for perf bash completion	2015-03-19 13:53:27 -03:00
perf-read-vdso.c	perf tools: Build programs to copy 32-bit compatibility	2014-10-29 10:32:48 -02:00
perf-sys.h	perf tools: Move generic barriers out of perf-sys.h	2015-05-08 16:05:08 -03:00
perf-with-kcore.sh	perf tools: Fix perf-with-kcore handling of arguments containing spaces	2015-08-06 16:48:27 -03:00
perf.c	perf env: Introduce read_cpu_topology_map() method	2015-09-14 12:50:28 -03:00
perf.h	perf record: Add ability to name registers to record	2015-08-31 18:01:33 -03:00