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2020-05-05libperf: Add NULL pointer check for cpu_map iteration and NULL assignment ↵He Zhe1-1/+1
for all_cpus. A NULL pointer may be passed to perf_cpu_map__cpu and then cause a crash, such as the one commit cb71f7d43ece ("libperf: Setup initial evlist::all_cpus value") fix. Signed-off-by: He Zhe <zhe.he@windriver.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kyle Meyer <meyerk@hpe.com> Link: http://lore.kernel.org/lkml/1583665157-349023-1-git-send-email-zhe.he@windriver.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-01-06libperf: Move to tools/lib/perfJiri Olsa1-0/+345
Move libperf from its current location under tools/perf to a separate directory under tools/lib/. Also change various paths (mainly includes) to reflect the libperf move to a separate directory and add a new directory under MANIFEST. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20191206210612.8676-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>