wireguard-openbsd/lib/csu/amd64, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/lib/csu/amd64?h=jd%2Fqueueboosts2016-03-20T02:32:39ZRearrange C runtime bits: now that ld.so exports environ and __progname,2016-03-20T02:32:39Zguentherguenther@openbsd.org2016-03-20T02:32:39Zurn: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.2015-09-01T05:40:06Zguentherguenther@openbsd.org2015-09-01T05:40:06Zurn:sha1:0a8a9c346022d9ea9d2d120f75edf8549c4915cf
With much assistance from miod@
ok deraadt@@
Introduce new csu0 variant for -static -pie binaries to use called2014-12-22T03:51:08Zkurtkurt@openbsd.org2014-12-22T03:51:08Zurn:sha1:b7d44ead2528d548ebe369571fb766478149400a
rcsu0.o where the initial 'r' is for relocatable. rcsu0.o performs
self-relocation on static pie binaries by calling a slightly modified
copy of ld.so's _dl_boot_bind() in boot.h.
The first arch implementatation is also included for amd64 where
__start calls _dl_boot_bind() and then calls ___start(). Includes
parts from kettenis@ to help get R_X86_64_64 relocations working
and proper handling for undefined weak symbols.
This is the first part of several to get static pie self-relocating
binaries working. binutils, gcc and kernel changes are forthcoming
to complete the solution, then per-arch implementations are needed
for MD_RCRT0_START in csu.
okay kettenis@ pascal@ deraadt@
Merge Makefiles, moving the build up a level and putting the CPU-specific2014-11-12T02:31:47Zguentherguenther@openbsd.org2014-11-12T02:31:47Zurn:sha1:6b88410476671be99ce8e616cd4ff5d028d907d2
build flags into conditionals in the Makefile, fixing a few inconsistencies
in the process.
\o/ miod@
Merge the per-arch crt0.c files into common_elf/crt0.c, with MD macros in2013-12-03T06:21:40Zguentherguenther@openbsd.org2013-12-03T06:21:40Zurn:sha1:453b49cd27aaae4d675fbaa755fa5bd0af309909
the md_init.h files.
Worked out with and ok miod@; ok matthew@
The kernel and ld.so pass 0 in %rdx for use as the cleanup callback2013-11-10T18:49:34Zguentherguenther@openbsd.org2013-11-10T18:49:34Zurn:sha1:6b5b642243e83baf9d847ab668df4d93d8dfd2e5
for about a year, so it's safe to add the test and atexit() call.
While here, drop the no-longer-used obj and ps_strings and the
asm to set those up, switch from sys/param.h to limits.h, and ANSIfy.
ok kettenis@
Pass install the -S option to avoid a window where the target isn't2011-11-08T10:37:09Zguentherguenther@openbsd.org2011-11-08T10:37:09Zurn:sha1:f949d8e248f8c29054e838804ee72695d2b88423
executable (by mode or content), which can trip up builds with 'make -j'
(The generic fix is in share/mk/*; some Makefiles have their own INSTALL lines)
ok millert@ deraadt@
Make sure everything run from .init and .fini sections gets a properly aligned2011-03-30T19:15:03Zketteniskettenis@openbsd.org2011-03-30T19:15:03Zurn:sha1:e76b0f7db23de89a573b3094b08a35b4d1f81c80
stack.
ok deraadt@, fgsch@
rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and2009-10-27T23:59:19Zderaadtderaadt@openbsd.org2009-10-27T23:59:19Zurn:sha1:043fbe51c197dbbcd422e917b65f765d8b5f8874
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms
Compile crt0.o, crtbegin.o and crtend.o with -fpie/-fPIE. This requires2008-11-11T23:49:46Zkurtkurt@openbsd.org2008-11-11T23:49:46Zurn:sha1:e8e072b5bebfa1cf1c28740d55efc14f634c9e6e
gcc with pie support to be built first.
ok kettenis@