wireguard-openbsd/lib/csu/crtbegin.c, branch jd/simplify-queueing WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/csu/crtbegin.c?h=jd%2Fsimplify-queueing 2019-01-09T16:42:38Z Use static consistently with definitions of functions that have been 2019-01-09T16:42:38Z visa visa@openbsd.org 2019-01-09T16:42:38Z urn:sha1:a36635a7c3589c5da52fd2716a34be60855ef6d2 declared static. OK guenther@ Add support for {preinit,init,fini}_array sections in static binaries 2018-12-21T05:45:42Z guenther guenther@openbsd.org 2018-12-21T05:45:42Z urn:sha1:b1bc2e073c0bae2d2308bd86e58308d8ef716ecb ok kettenis@ Move static variables from .data to .bss by not initializing them to zero 2017-02-19T21:39:32Z guenther guenther@openbsd.org 2017-02-19T21:39:32Z urn:sha1:57ebedb7457c2a4c6683bf958705134029bbdfda ok kettenis@ Make crtbegin.c and crtbeginS.c consistent on stylistic points 2017-01-21T05:46:56Z guenther guenther@openbsd.org 2017-01-21T05:46:56Z urn:sha1:d1e58a60cc0a3ad66c1a6ecb4792d0c1b2fa88cb ok kettenis@ Declare the symbols that label the .ctors, .dtors, .eh_frame, and .jcr 2017-01-21T00:45:13Z guenther guenther@openbsd.org 2017-01-21T00:45:13Z urn:sha1:b3fe29f4687edf2be8c3fc3433d38bd40593a33b sections as extern hidden arrays of indefinite size, so that the compiler (well, clang) doesn't believe it knows the exact contents and thus optimize things into infinite loops. Actually set the symbols to be in the sections and insert the leading and trailing values via __asm(). Problem pointed out by patrick@ testing and ok kettenis@ Don't make __CTOR_LIST__ and __DTOR_LIST__ const. This makes the .ctors and 2016-12-22T09:32:04Z kettenis kettenis@openbsd.org 2016-12-22T09:32:04Z urn:sha1:023c6622b971308b2fbf0693f21de5e9c9e96527 .dtors sections writable just like they are in crtend.o and code generated by compilers. This is necessary to make sure that linkers that respect the ELF spec a bit better (such as lld) correctly concatenate the secttions. ok deraadt@ libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork() 2015-11-10T04:14:03Z guenther guenther@openbsd.org 2015-11-10T04:14:03Z urn:sha1:6897476f8d3f1ad745809cc8163365f785e57a2d 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@ Make pthread_atfork() track the DSO that called it like atexit() does, 2015-04-07T01:27:06Z guenther guenther@openbsd.org 2015-04-07T01:27:06Z urn:sha1:514a545f8a3983d53b7de4e8dfcefe16c9496776 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@ gcc 2.x is dead 2015-04-04T18:05:04Z guenther guenther@openbsd.org 2015-04-04T18:05:04Z urn:sha1:fd7ad13f9e73a3dbdacb10746cf5478433753328 ok millert@ Move atexit(3) into crtbegin.c and certbeginS.c such that we can pass the 2013-12-28T18:38:42Z kettenis kettenis@openbsd.org 2013-12-28T18:38:42Z urn:sha1:859c67c82abbbc6a47fd83e1b7b5305186273ffd right __dso_handle and have dlopen'ed shared objects run their atexit handlers when they get unloaded. This is what Linux does, and several ports depend on this behaviour (and will crash upon exit without this chang). Based on an earlier diff from matthew@ Tested by ajacoutot@ ok deraadt@