https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
--- Comment #8 from Jürgen Reuter <juergen.reuter at desy dot de> ---
Hi Erik,
your patch works beyond the point where the problem occurs first, but then the
sanitizer still fails bootstrapping:
In file included from /usr/include/sys/sysctl.h:83,
from
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc:70:
/usr/local/packages/gcc_9.0/_build/gcc/include-fixed/sys/ucred.h:106:2: error:
'_Atomic' does not name a type
106 | _Atomic u_long cr_ref; /* reference count */
| ^~~~~~~
In file included from
../../../../libsanitizer/sanitizer_common/sanitizer_flags.h:15,
from
../../../../libsanitizer/sanitizer_common/sanitizer_common.h:17,
from
../../../../libsanitizer/sanitizer_common/sanitizer_mac.h:14,
from
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc:14:
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc: In member function
'void __sanitizer::BlockingMutex::CheckLocked()':
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc:406:13: warning:
dereferencing type-punned pointer will break strict-aliasing rules
[-Wstrict-aliasing]
406 | CHECK_NE(*(OSSpinLock*)&opaque_storage_, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:292:46:
note: in definition of macro 'CHECK_IMPL'
292 | __sanitizer::u64 v1 = (__sanitizer::u64)(c1); \
| ^~
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc:406:3: note: in
expansion of macro 'CHECK_NE'
406 | CHECK_NE(*(OSSpinLock*)&opaque_storage_, 0);
| ^~~~~~~~
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc: In function 'void*
__sanitizer::internal_start_thread(void (*)(void*), void*)':
../../../../libsanitizer/sanitizer_common/sanitizer_mac.cc:578:47: warning:
cast between incompatible function types from 'void (*)(void*)' to 'void*
(*)(void*)' [-Wcast-function-type]
578 | pthread_create(&th, 0, (void*(*)(void *arg))func, arg);
| ^~~~
make[4]: *** [sanitizer_mac.lo] Error 1
