wireguard-openbsd/lib/libc/arch/amd64/string, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/lib/libc/arch/amd64/string?h=jd%2Fqueueboosts2018-07-10T16:01:26ZIn asm.h ensure NENTRY uses the old-school nop-sled align, but change standard2018-07-10T16:01:26Zderaadtderaadt@openbsd.org2018-07-10T16:01:26Zurn:sha1:a5910b4fbcaa3dd48faff38aeadcb22c953af71e
ENTRY is a trapsled. Fix a few functions which fall-through into an ENTRY
macro. amd64 binaries now are free of double+-nop sequences (except for one
assember nit in aes-586.pl). Previous changes by guenther got us here.
ok mortimer kettenis
Add retguard macros for libc.2018-07-03T23:14:05Zmortimermortimer@openbsd.org2018-07-03T23:14:05Zurn:sha1:631951aab24dc7dce7719dfa2487185ea5ef120f
ok deraadt
Instead of trying to handle ffs() with the normal rename-mark-hidden-and-alias2018-01-18T08:23:44Zguentherguenther@openbsd.org2018-01-18T08:23:44Zurn:sha1:ae3cb403620ab940fbaabb3055fac045a63d56b7
dance, mark it protected. This works better for both gcc and clang: gcc
blocks overriding of internal calls, while clang permits inlining again.
ok otto@
clang doesn't propagate attributes like "asm labels" and "visibility(hidden)"2017-11-29T05:13:57Zguentherguenther@openbsd.org2017-11-29T05:13:57Zurn:sha1:ea6088e7d368d53c49ebfdf4520275cec2f78f5b
to builtins like mem{set,cpy,move} and __stack_smash_handler. So, when
building with clang, instead mark those as protected visibility to get rid
of the PLT relocations. We can't take the address of them then, but that's
ok: it's a build-time error not a run-time error.
ok kettenis@
"the the" -> "the" in comment2015-12-11T00:05:46Zmmccmmcc@openbsd.org2015-12-11T00:05:46Zurn:sha1:aa753eebe6584245169158d222afa5ac9c15380aSplit the non-syscall ASM bits from SYS.h into DEFS.h and use that in the2015-11-14T21:53:03Zguentherguenther@openbsd.org2015-11-14T21:53:03Zurn:sha1:b4551fde27a9b4bffacf003cd41ed7a6c54b4036
non-syscall .S source
ok millert@ miod@
Add framework for resolving (pun intended) libc namespace issues, using2015-08-31T02:53:56Zguentherguenther@openbsd.org2015-08-31T02:53:56Zurn:sha1:9b9d2a55a62c8e82206c25f94fcc7f4e2765250e
wrapper .h files and asm labels to let internal calls resolve directly and
not be overridable or use the PLT. Then, apply that framework to most of
the functions in stdio.h, string.h, err.h, and wchar.h. Delete the
should-have-been-hidden-all-along _v?(err|warn)[cx]? symbols while here.
tests clean on i386, amd64, sparc64, powerpc, and mips64
naming feedback from kettenis@ and millert@
ok kettenis@
Sprinkle END() in some straightforward *.S files that have ENTRY(). The2015-05-29T07:21:09Zuebayasiuebayasi@openbsd.org2015-05-29T07:21:09Zurn:sha1:81af83dd3999903f087ff521acd72984b9808a05
resulting *.o have "FUNC" symbols with size set.
Make index/rindex weak aliases of strchr/strrchr since they are not2015-05-15T22:29:37Zmillertmillert@openbsd.org2015-05-15T22:29:37Zurn:sha1:cb39b41371628601fbe4c618205356d538b9d08a
part of the ISO C standard and have also been dropped from POSIX.
OK guenther@ kettenis@
Import new amd64 assembly versions of strchr/index, strrchr/rindex,2014-12-09T15:10:39Zreykreyk@openbsd.org2014-12-09T15:10:39Zurn:sha1:c2a49701f6bfcd31d0b97ecc55a0a2af126dbb7d
and strlen that provide a significantly faster performance than our
previous .c or .S implementations. Based on NetBSD's code.
Tested with different amd64 CPUs.
ok deraadt@ mikeb@