perf tools: Change fields type in perf_record_time_conv
C standard claims "An object declared as type _Bool is large enough to store the values 0 and 1", bool type size can be 1 byte or larger than 1 byte. Thus it's uncertian for bool type size with different compilers. This patch changes the bool type in structure perf_record_time_conv to __u8 type, and pads extra bytes for 8-byte alignment; this can give reliable structure size. Fixes: d110162c ("perf tsc: Support cap_user_time_short for event TIME_CONV") Suggested-by:Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Leo Yan <leo.yan@linaro.org> Acked-by:
Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steve MacLean <Steve.MacLean@Microsoft.com> Cc: Yonatan Goldschmidt <yonatan.goldschmidt@granulate.io> Link: https://lore.kernel.org/r/20210428120915.7123-2-leo.yan@linaro.org Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
parent
56d32d4c
Please register or sign in to comment