openbsd/src/lib/libc/stdlib/atexit.c, branch OPENBSD_6_8_BASE

Move __cxa_thread_atexit* to its own .c file to avoid pulling the code

2017-12-16T20:06:56+00:00

(w/ _dlctl reference) into static executables. It's all Mark's code so put his preferred copyright on it. ok kettenis@

Remove DEF_STRONG(__cxa_thread_atexit_impl). This produces an unwanted

2017-12-05T21:11:10+00:00

_libc___cxa_thread_atexit_impl reference on gcc architectures that breaks the build.

Implement __cxa_thread_atexit to support C++11 thread_local scope. The

2017-12-05T13:45:31+00:00

interface is also made available as __cxa_thread_atexit_impl to satisfy the needs of GNU libstdc++. ok guenther@, millert@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()

2015-11-10T04:14:03+00:00

stubs for the executable from crtbegin.o into libc, which lets them be excluded from static links that don't use them. For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini sections for libc aren't called at the right times anyway, so it's good that they're unused. libc.so just needs __guard_local and the .note.openbsd.ident section, so add them to stack_protector.c for now (this will be improved) "good time" deraadt@

Move the _atfork_list definition to atexit.c so that the fork syscall stub

2015-10-25T18:03:17+00:00

doesn't get pulled into all static executables ok millert@ jca@

Hide atexit and atexit_register_cleanup()

2015-10-25T18:01:24+00:00

Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct Switch regress/lib/libc/atexit/ to be built with -static so that it can still access __atexit* ok millert@ jca@

Make pthread_atfork() track the DSO that called it like atexit() does,

2015-04-07T01:27:07+00:00

unregistering callbacks if the DSO is unloaded. Move the callback handling from libpthread to libc, though libpthread still overrides the inner call to handle locking and thread-library reinitialization. Major version bump for both libc and libpthread. verification that this fixes various ports ajacoutot@ asm assistance miod@; ok millert@ deraadt@

Add locking for __cxa_finalize() as it modifies the page permissions of the

2014-07-11T09:51:37+00:00

__atexit tables and touches global variables. From Srinavasa Nagaraju through Android/Elliott Hughes. ok tedu@, guenther@

as noted by google/android via kettenis, atexit handlers can install new

2014-07-10T21:14:22+00:00

handlers. if this happens, restart the loop. ok kettenis matthew millert miod

Always call atexit handlers as if they were registered with __cxa_atexit.

2014-06-18T19:01:10+00:00

The extra argument doesn't hurt genuine atexit handlers and this fixes a bug where we didn't provide the argument (effectively passing garbage) for functions registered with __cxa_atexit in the main executable. Pointed out by Dmitriy Ivanov and Elliott Hughes . ok matthew@