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Fedora 35 sets DEBUGINFOD_URLS by default, which might lead to
unexpected stalls in perf record exit path, when we try to cache
profiled binaries.
# DEBUGINFOD_PROGRESS=1 ./perf record -a
^C[ perf record: Woken up 1 times to write data ]
Downloading from https://debuginfod.fedoraproject.org/ 447069
Downloading from https://debuginfod.fedoraproject.org/ 1502175
Downloading \^Z
Disabling DEBUGINFOD_URLS by default in perf record and adding
debuginfod option and .perfconfig variable support to enable id.
Default without debuginfo processing:
# perf record -a
Using system debuginfod setup:
# perf record -a --debuginfod
Using custom debuginfd url:
# perf record -a --debuginfod='https://evenbetterdebuginfodserver.krava'
Adding single perf_debuginfod_setup function and using
it also in perf buildid-cache command.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.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/20211209200425.303561-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9bce13ea88