/* Copyright (C) 1999-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Mosberger-Tang <email@example.com>.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
* Note that the gp has to be set properly for this to work.
* As long as all syscalls are in the same load unit
* (executable or shared library) as this routine, we should
* be fine. Otherwise, we would have to first load the global
* pointer register from __gp.
# if IS_IN (libc)
# define SYSCALL_ERROR_ERRNO __libc_errno
# define SYSCALL_ERROR_ERRNO errno
addl r2=@ltoff(@tprel(SYSCALL_ERROR_ERRNO)), gp;;
ret // ret is #define'd in syscall.h!
mov r15=r37 /* syscall number */
cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */
(p6) br.cond.spnt.few __syscall_error