wireguard-openbsd/lib/libc/arch/arm/sys, branch master

replace ad-hoc illegal instruction with the architecturally defined one

2020-10-19T17:57:40Z

("permanently undefined") ok deraadt@ kettenis@

SYS___threxit cannot fail, but this integration looks like a gadget.

2020-10-18T14:28:16Z

Put a hard-trap instruction after the syscall instruction. ok kettenis mortimer

Avoid .align 0. Clang's integrated assembler actually honors this directive

2017-11-21T19:08:36Z

and the resulting byte-alignment triggers unaligned access. ok patrick@, deraadt@

Use the userspace-visible thread register directly in __cerror instead

2016-10-04T03:15:51Z

of indirecting through __errno(). Register naming tweaks and clang testing by patrick@ and jsg@ ok kettenis@

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@

Consistently reference '_end' instead of 'end' in the brk/sbrk implementation

2016-05-30T05:18:52Z

ok deraadt@

Remove sigreturn declaration and the now-unused libc syscall stub

2016-05-09T23:55:52Z

Use a Thread Information Block in both single and multi-threaded programs.

2016-05-07T19:05:21Z

This stores errno, the cancelation flags, and related bits for each thread and is allocated by ld.so or libc.a. This is an ABI break from 5.9-stable! Make libpthread dlopen'able by moving the cancelation wrappers into libc and doing locking and fork/errno handling via callbacks that libpthread registers when it first initializes. 'errno' *must* be declared via now! Clean up libpthread's symbol exports like libc. On powerpc, offset the TIB/TCB/TLS data from the register per the ELF spec. Testing by various, particularly sthen@ and patrick@ ok kettenis@

Merge the sigaction() and sigprocmask() overloads/wrappers from libpthread

2015-10-23T04:39:24Z

into libc, and move pthread_sigmask() as well (just a trivial wrapper). This provides consistent handling of SIGTHR between single- and multi-threaded programs and is a step in the merge of all the libpthread overloads, providing some ASM and Makefile bits that the other wrappers will need. ok deraadt@ millert@

Adds hidden _libc_FOO aliases for the system call stubs.

2015-09-10T13:29:09Z

Stop generating _brk and _sbrk symbols: they've already been hidden. Set the ELF symbol size on the syscall stubs. Give the __{min,cur}brk symbols a size and type, and hide more jump labels. alpha, arm, m88k, sh, sparc, and vax assistance miod@ hppa assistance kettenis@ ok deraadt@ miod@