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690d91f5ec
It should be released after printing the map.
$ perf test -v 52
52: Print cpu map :
--- start ---
test child forked, pid 172233
=================================================================
==172233==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 156 byte(s) in 1 object(s) allocated from:
#0 0x7fc472518e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x55e63b378f7a in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79
#2 0x55e63b37a05c in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:237
#3 0x55e63b056d16 in cpu_map_print tests/cpumap.c:102
#4 0x55e63b056d16 in test__cpu_map_print tests/cpumap.c:120
#5 0x55e63afff8fb in run_test tests/builtin-test.c:428
#6 0x55e63afff8fb in test_and_print tests/builtin-test.c:458
#7 0x55e63b001a53 in __cmd_test tests/builtin-test.c:679
#8 0x55e63b001a53 in cmd_test tests/builtin-test.c:825
#9 0x55e63b06dc44 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313
#10 0x55e63aef7a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365
#11 0x55e63aef7a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409
#12 0x55e63aef7a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539
#13 0x7fc47204ed09 in __libc_start_main ../csu/libc-start.c:308
...
SUMMARY: AddressSanitizer: 448 byte(s) leaked in 7 allocation(s).
test child finished with 1
---- end ----
Print cpu map: FAILED!
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210301140409.184570-11-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.