wireguard-openbsd/lib/csu/crt0.c, branch jd/queueboosts WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/csu/crt0.c?h=jd%2Fqueueboosts 2019-05-10T13:29:21Z ld.so boot cleanup support: 2019-05-10T13:29:21Z guenther guenther@openbsd.org 2019-05-10T13:29:21Z urn:sha1:c0197e40dd4094880fe205f9c12d3e12e14e7ff3 - put functions and data which are only used before calling the executable's start function into their own page-aligned segments for unmapping (only done on amd64, arm64, armv7, powerpc, and sparc64 so far) - pass .init_array and .preinit_array functions an addition argument which is a callback to get a structure which includes a function that frees the boot text and data - sometimes delay doing RELRO processing: for a shared-object marked DF_1_INITFIRST do it after the object's .init_array, for the executable do it after the .preinit_array - improve test-ld.so to link against libpthread and trigger its initialization late libc changes to use this will come later ok kettenis@ Call _csu_finish() before {pre,}init_array functions so that in static 2019-05-08T20:27:29Z guenther guenther@openbsd.org 2019-05-08T20:27:29Z urn:sha1:1bfbec77a7b17a0f6da7266d6a21d1ca48f84301 executables the TIB and __progname are set up before they can be used. problem noted by ori@ ok millert@ kettenis@ 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@ Pull in declarations for main() and __init() to make clang happy. 2017-01-21T04:14:19Z guenther guenther@openbsd.org 2017-01-21T04:14:19Z urn:sha1:1640b8d3f7d57d7e1c97128905d228033f835f00 Mark __init() as hidden ok kettenis@ deraadt@ MD_START is now always ___start, so expand and eliminate it 2017-01-19T23:47:04Z guenther guenther@openbsd.org 2017-01-19T23:47:04Z urn:sha1:48c2532cf0ac165cb15277dedb995ed44e078382 ok phessler@ deraadt@ Now that vax has been removed, nothing defined MD_NO_CLEANUP anymore. 2016-09-26T15:43:26Z kettenis kettenis@openbsd.org 2016-09-26T15:43:26Z urn:sha1:d3eddb10b4d2ee9faaf16b7ee3213471fd72ac97 ok guenther@ Declare moncontrol(3) APIs in <sys/gmon.h> 2016-05-07T19:30:52Z guenther guenther@openbsd.org 2016-05-07T19:30:52Z urn:sha1:dbf5b26b7ce3154b602d8b18c9be8c2e2f3b136b Export _gmonparam again. Make gcrt0.o use an reserved name for _monstartup() ok millert@ Rearrange C runtime bits: now that ld.so exports environ and __progname, 2016-03-20T02:32:39Z guenther guenther@openbsd.org 2016-03-20T02:32:39Z urn:sha1:5af055cd66b5450a4935ae30e5716331ca3b13d5 move their definitions and initialization in static links to libc.a Make crt0 always invoke a new func _csu_finish() in libc to process the auxv and to either register the ld.so cleanup function (in dynamic links) or initialize environ and __progname and do MC_DISABLE_KBIND (in static links). In libc, get pagesize from auxv; cache that between getpagesize() and sysconf(_SC_PAGESIZE) ok mpi@ "good time" deraadt@ In static binaries, invoke kbind() once to disable it. 2015-09-01T05:40:06Z guenther guenther@openbsd.org 2015-09-01T05:40:06Z urn:sha1:0a8a9c346022d9ea9d2d120f75edf8549c4915cf With much assistance from miod@ ok deraadt@@