r274625 - in /branches/gcc-9-branch/libsanitize...

[iains@gcc.gnu.org]

Author: iains
Date: Sun Aug 18 19:11:29 2019
New Revision: 274625

URL: https://gcc.gnu.org/viewcvs?rev=274625&root=gcc&view=rev
Log:
Darwin, libsanitizer - remove reference to __cxa_rethrow_primary_exception.

For some Darwin versions the absence of the rethrow_primary_exception
symbol causes almost all sanitizer tests to fail.
The symbol is not present in libstdc++ and, therefore is is correct to
remove the reference to it for all platforms.  We do this by adding a
new guard "ASAN_HAS_CXA_RETHROW_PRIMARY_EXCEPTION".

For the backported version, to avoid bumping the library version, this
is only applied for Darwin (because of the way that symbol interposing
works on Darwin, this does not alter the exported symbols list).

libsanitizer/

2019-08-18  Iain Sandoe  <iain@sandoe.co.uk>


	Backport from mainline
	2019-06-18  Iain Sandoe  <iain@sandoe.co.uk>

	PR libsanitizer/87880
	* asan/asan_interceptors.h:
	(ASAN_INTERCEPT___CXA_RETHROW_PRIMARY_EXCEPTION): New.
	* asan/Makefile.am (DEFS): Add (for Darwin only)
	ASAN_HAS_CXA_RETHROW_PRIMARY_EXCEPTION, defined to 0.
	* asan/Makefile.in: Regenerated.


Modified:
    branches/gcc-9-branch/libsanitizer/ChangeLog
    branches/gcc-9-branch/libsanitizer/asan/Makefile.am
    branches/gcc-9-branch/libsanitizer/asan/Makefile.in
    branches/gcc-9-branch/libsanitizer/asan/asan_interceptors.h