wireguard-openbsd/lib/libc/arch/amd64/sys, branch master

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

Mark top-level frame for new thread in both CFI and with zero

2020-10-01T01:05:40Z

framepointer, so gdb knows to stop. Inspired by glibc ok kettenis@

Apply retpoline protection to the indirect call to the thread startfunc

2019-05-10T01:31:30Z

ok mortimer@

Remove FBSDID.

2019-03-15T05:42:38Z

ok deraadt@

Don't need .text before ENTRY(), also minor spacing cleanups

2017-08-19T18:24:06Z

Clang ignores a .weak directive before a function is actually defined. So

2016-09-10T20:39:22Z

move it from before ENTRY() to after END(). Keeps brk(2) and sbrk(2) weak when comping libc with clang. ok guenther@

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@

Rename SYSEXIT() to SYSCALL_END() for consistency with most other archs.

2015-10-17T22:40:54Z

No change in resulting object files ok millert@