Azat Khuzhin a4f9e1da5b Fix getauxval() by using procfs with fallback to environ ... getauxval() from glibc-compatibility did not work always correctly: - It does not work after setenv(), and this breaks vsyscalls, like sched_getcpu() [1] (and BaseDaemon.cpp always set TZ if timezone is defined, which is true for CI [2]). Also note, that fixing setenv() will not fix LSan, since the culprit is getauxval() [1]: https://bugzilla.redhat.com/show_bug.cgi?id=1163404 [2]: ClickHouse#32928 (comment) - Another think that is definitely broken is LSan (Leak Sanitizer), it relies on worked getauxval() but it does not work if __environ is not initialized yet (there is even a commit about this). And because of, at least, one leak had been introduced [3]: [3]: ClickHouse#33840 Fix this by using /proc/self/auxv with fallback to environ solution to make it compatible with environment that does not allow reading from auxv (or no procfs). v2: add fallback to environ solution v3: fix return value for __auxv_init_procfs() (cherry picked from commit f187c3499a) v4: more verbose message on errors, CI founds [1]: AUXV already has value (529267711) [1]: https://s3.amazonaws.com/clickhouse-test-reports/39103/2325f7e8442d1672ce5fb43b11039b6a8937e298/stress_test__memory__actions_.html v5: break at AT_NULL v6: ignore AT_IGNORE v7: suppress TSan and remove superior check to avoid abort() in case of race v8: proper suppressions (not inner function but itself) Refs: #33957 Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>		2022-07-25 01:22:04 +03:00
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memcpy	Remove trash from CMake	2021-10-11 06:58:08 +03:00
musl	Fix getauxval() by using procfs with fallback to environ	2022-07-25 01:22:04 +03:00
CMakeLists.txt	Remove outdated links from CI	2022-03-28 15:53:22 +02:00
glibc-compatibility.c