wireguard-openbsd/lib/libc/arch/arm/string, branch jd/queueboosts

Implement ffs(3) using the CLZ instructions which has been available ever

2018-01-21T21:56:02Z

since ARMv5. Should be much faster but more importantly it removes the data table from .text which could introduce unwanted ROP gadgets. Based on changes in Android/Bionic by Elliott Hughes. ok patrick@

Partial revert of rev. 1.7, fixes build with clang

2018-01-19T11:10:43Z

The error was: --8<-- ffs.S:57:2: error: unsupported relocation on symbol adrne r2, .L_ffs_table ^ -->8-- Minimal workaround suggested by deraadt@, ok guenther@ kettenis@

Instead of trying to handle ffs() with the normal rename-mark-hidden-and-alias

2018-01-18T08:23:44Z

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@

Don't use _libc_ prefix when referencing "builtin" symbols with clang.

2017-12-16T09:25:43Z

Slightly tweaked diff from guenther@

clang doesn't propagate attributes like "asm labels" and "visibility(hidden)"

2017-11-29T05:13:57Z

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@

Stop exporting _memcpy, an implementation detail of bcopy/memcpy/memmove

2017-10-29T02:21:33Z

ok kettenis@ deraadt@

Use unified syntax such that this compiles with both gcc and clang.

2016-09-18T10:22:10Z

ok jsg@

Use internal names for __errno, _memcpy, memset, and {,_}{set,long}jmp

2016-08-06T19:16:09Z

Eliminate pointless use of PIC_SYM() Split out DEFS.h from SYS.h like some other archs ok kettenis@ deraadt@

remove duplicate strrchr.c entry in SRCS

2016-04-28T08:38:20Z

ok deraadt@

Add framework for resolving (pun intended) libc namespace issues, using

2015-08-31T02:53:56Z

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@