leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
93b0ba3c60
linux/tools/perf
History
Wang Nan 93b0ba3c60 perf tools: Clear struct machine during machine__init() 
There are so many test cases use stack allocated 'struct machine'.
Including:
  test__hists_link
  test__hists_filter
  test__mmap_thread_lookup
  test__thread_mg_share
  test__hists_output
  test__hists_cumulate

Also, in non-test code (for example, machine__new_host()) there are
code use 'malloc()' to alloc struct machine.

These are dangerous operations, cause some tests fail or hung in
machines__exit(). For example, in

 machines__exit ->
   machine__destroy_kernel_maps ->
     map_groups__remove ->
       maps__remove ->
         pthread_rwlock_wrlock

a incorrectly initialized lock causes unintended behavior.

This patch memset(0) that structure in machine__init() to ensure all
fields in 'struct machine' are initialized to zero.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1449541544-67621-17-git-send-email-wangnan0@huawei.com
[ Use memset, see 'man bzero' ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-11 09:32:41 -03:00
..
arch perf tests: Pass the subtest index to each test routine 2015-11-19 13:19:15 -03:00
bench perf bench: Use named initializers in the trailer too 2015-10-19 18:17:25 -03:00
config Revert "perf tools: Improve setting of gcc debug option" 2015-12-10 16:09:40 -03:00
Documentation perf config: Add initial man page 2015-11-23 18:31:25 -03:00
python perf python: Support the PERF_RECORD_SWITCH event 2015-10-07 19:41:50 -03:00
scripts perf tools: Add more documentation to export-to-postgresql.py script 2015-09-28 16:53:07 -03:00
tests perf test: Create kernel maps properly for hist entries test 2015-12-07 18:12:56 -03:00
trace/strace/groups perf trace: Add read/write to the file group 2015-09-04 13:22:06 -03:00
ui perf tui: Change default selection background color to yellow 2015-12-09 13:41:55 -03:00
util perf tools: Clear struct machine during machine__init() 2015-12-11 09:32:41 -03:00
.gitignore perf tools: Add Intel PT instruction decoder 2015-08-17 11:11:36 -03:00
Build perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin-annotate.c perf annotate: Delay UI browser setup after initialization is done 2015-12-10 14:33:54 -03:00
builtin-bench.c perf bench: Run benchmarks, don't test them 2015-10-19 16:10:25 -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-list: Fix return value of perf buildid-list -k 2015-12-07 12:02:10 -03:00
builtin-config.c perf tools: Add 'perf config' command 2015-11-23 18:31:24 -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 tools: Introduce usage_with_options_msg() 2015-10-27 09:28:44 -03:00
builtin-help.c perf help: Change 'usage' to 'Usage' for consistency 2015-10-19 16:51:44 -03:00
builtin-inject.c perf inject: Also re-pipe lost_samples event 2015-11-13 12:23:12 -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 perf kvm: Remove invocation of setup/exit_browser() 2015-12-10 14:35:35 -03:00
builtin-list.c perf list: Do event name substring search as last resort when no events found 2015-10-01 12:12:22 -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 tools: Introduce usage_with_options_msg() 2015-10-27 09:28:44 -03:00
builtin-record.c perf record: Add clang options for compiling BPF scripts 2015-10-29 17:16:22 -03:00
builtin-report.c perf report: Check argument before calling setup_browser() 2015-12-10 14:35:58 -03:00
builtin-sched.c perf sched latency: Fix thread pid reuse issue 2015-11-05 12:51:00 -03:00
builtin-script.c perf script: Add support for PERF_TYPE_BREAKPOINT 2015-12-11 09:25:16 -03:00
builtin-stat.c perf stat: Fix cmd_stat to release cpu_map 2015-12-09 13:41:59 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c perf top: Cleanup condition in perf_top__record_precise_ip() 2015-12-11 08:38:10 -03:00
builtin-trace.c perf trace: Add cmd string table to decode sys_bpf first arg 2015-10-29 11:48:18 -03:00
builtin-version.c perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin.h perf tools: Add 'perf config' command 2015-11-23 18:31:24 -03:00
command-list.txt perf tools: Add 'perf config' command 2015-11-23 18:31:24 -03:00
CREDITS
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
Makefile perf tools: Allow shuffling the build tests 2015-11-05 11:39:54 -03:00
Makefile.perf perf build: Fix traceevent plugins build race 2015-11-26 13:35:38 -03:00
MANIFEST tools: Adopt memdup() from tools/perf, moving it to tools/lib/string.c 2015-11-18 17:51:02 -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 tools: Save cmdline arguments earlier 2015-12-09 13:42:03 -03:00
perf.h perf record: Add ability to name registers to record 2015-08-31 18:01:33 -03:00