freebsd-skq/lib/libthr/arch/powerpc
Brandon Bergren bdccf0bbac Implement _umtx_op_err.S on powerpc / powerpc64.
As per r177853, we need to avoid using errno inside user mutex code, since
 signal handlers can interfere with it and mess up libthr internal state.

So, implement _umtx_op_err() instead, which makes a raw syscall and
returns the error value directly instead of using errno.

Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D20946
2019-08-09 20:16:38 +00:00
..
include Implement _umtx_op_err.S on powerpc / powerpc64. 2019-08-09 20:16:38 +00:00
powerpc Implement _umtx_op_err.S on powerpc / powerpc64. 2019-08-09 20:16:38 +00:00
Makefile.inc Implement _umtx_op_err.S on powerpc / powerpc64. 2019-08-09 20:16:38 +00:00