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b7c7684ae2
freebsd-skq/lib/libc
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Konstantin Belousov b7c7684ae2 Export __cxa_thread_atexit_impl as an alias for __cxa_thread_atexit. 
libstdc++ before gcc r244057 expected that libc provided
__cxa_thread_atexit_impl, and libstdc++ implemented
__cxa_thread_atexit, by forwarding the calls to _impl.  Mentioned gcc
revision checks for __cxa_thread_atexit in libc and does not provide
the symbol from libstdc++ if found.

This change helps older gcc, in particular, all released versions
which implement thread_local, by consolidating the implementation into
libc.  For that versions, if configured with the current libc, the
__cxa_thread_atexit is exported from libstdc++ as a trivial wrapper
around libc::__cxa_thread_atexit_impl.

The __cxa_thread_atexit implementation is put into separate source
file to allow for static linking with older libstdc++.a.

gcc bugzilla:	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78968
Reported by:	Hannes Hauswedell <h2+fbsdports@fsfe.org>
PR:	215709
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2017-01-07 16:05:19 +00:00
..
aarch64 Attach the cortex strings library to the build. Only a subset of functions 2016-09-19 15:08:03 +00:00
amd64 Reduce duplicate NOASM and PSEUDO definitions 2016-09-08 22:38:20 +00:00
arm Reduce duplicate NOASM and PSEUDO definitions 2016-09-08 22:38:20 +00:00
capability
compat-43 Use ANSI C prototypes. Eliminates -Wold-style-definition warnings. 2015-09-20 20:53:24 +00:00
db hash(3): protect in-memory page when using cross-endianness. 2016-09-26 16:06:50 +00:00
gdtoa META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
gen Rename the 'flags' argument to getfsstat() to 'mode' and validate it. 2016-12-27 20:21:11 +00:00
gmon Replace the last non-optional use of sbrk() in the tree with mmap(). 2016-01-21 18:17:19 +00:00
i386 Reduce duplicate NOASM and PSEUDO definitions 2016-09-08 22:38:20 +00:00
iconv citrus: Remove redundant code in _citrus_esdb_get_list(). 2016-06-02 17:28:39 +00:00
include Export __cxa_thread_atexit_impl as an alias for __cxa_thread_atexit. 2017-01-07 16:05:19 +00:00
inet Update ^/vendor/NetBSD/tests/dist to a more recent snapshot 2016-08-12 01:05:07 +00:00
isc libc: do not include <sys/types.h> where <sys/param.h> was already included 2016-04-18 21:05:15 +00:00
locale Move __hidden attribute towards the end of the declaration. 2016-12-31 15:30:00 +00:00
md
mips Add full softfloat and hardfloat support for MIPS. 2016-10-31 15:33:58 +00:00
nameser libc: spelling fixes. 2016-04-30 01:24:24 +00:00
net Cleanup inelegant calloc(3) introduced in r310984. 2017-01-02 15:17:33 +00:00
nls Use current locale (f.e. set by thread). It was global locale always 2016-08-24 16:44:27 +00:00
posix1e libc: spelling fixes. 2016-04-30 01:24:24 +00:00
powerpc Fix a typo which broke the build for powerpc. 2016-10-25 01:32:35 +00:00
powerpc64 Reduce duplicate NOASM and PSEUDO definitions 2016-09-08 22:38:20 +00:00
powerpcspe Fix a copy&paste-o causing a segfault with sigsetjmp. 2016-10-29 01:22:55 +00:00
quad
regex 1) Eliminate possibility to call __*collate_range_cmp() with inclomplete 2016-07-14 09:07:25 +00:00
resolv Don't leak addrinfo if ai->ai_addrlen <= minsiz test fails. 2016-06-08 09:40:06 +00:00
riscv Add full softfloat and hardfloat support for RISC-V. 2016-11-16 15:21:32 +00:00
rpc Update ^/vendor/NetBSD/tests/dist to a more recent snapshot 2016-08-12 01:05:07 +00:00
secure libc: do not include <sys/types.h> where <sys/param.h> was already included 2016-04-18 21:05:15 +00:00
softfloat Add full softfloat and hardfloat support for RISC-V. 2016-11-16 15:21:32 +00:00
sparc64 Reduce duplicate NOASM and PSEUDO definitions 2016-09-08 22:38:20 +00:00
stdio Revert r310138 2016-12-22 22:30:42 +00:00
stdlib Export __cxa_thread_atexit_impl as an alias for __cxa_thread_atexit. 2017-01-07 16:05:19 +00:00
stdtime 1) For already non-standard %z extension implement GNU compatible formats: 2016-09-21 15:47:40 +00:00
string Add timingsafe_bcmp and timingsafe_memcmp. 2016-08-14 23:38:50 +00:00
sys Rename the 'flags' argument to getfsstat() to 'mode' and validate it. 2016-12-27 20:21:11 +00:00
tests Support spaces in group names. 2016-12-06 23:43:04 +00:00
uuid libc: replace 0 with NULL for pointers. 2016-04-10 19:33:58 +00:00
x86/sys __vdso_gettc(): be extra careful with /dev/hpet mappings, never unmap 2017-01-04 16:10:52 +00:00
xdr libc/xdr: unsign some loop indexes. 2016-05-06 16:03:40 +00:00
yp Use on crypto.x and rpc.x from the source tree. 2016-06-28 19:53:16 +00:00
libc_nossp.ldscript Add different libc ldscript: the one without libssp -- 2016-10-12 13:19:21 +00:00
libc.ldscript
Makefile Add full softfloat and hardfloat support for RISC-V. 2016-11-16 15:21:32 +00:00
Makefile.depend DIRDEPS_BUILD: Regenerate without local dependencies. 2016-02-24 17:20:11 +00:00
Versions.def Create namespace for the symbols added during 12-CURRENT cycle. 2016-08-06 13:28:58 +00:00