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/* Copyright (C) 2012-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
/* We do not want .eh_frame info so that __makecontext_ret stops unwinding
if backtrace was called within a context created by makecontext. (There
is also no .eh_frame info for _start or thread_start.) */
#undef cfi_startproc
#define cfi_startproc
#undef cfi_endproc
#define cfi_endproc
ENTRY(__makecontext_ret)
basr %r14,%r7
ltr %r8,%r8 /* Check whether uc_link is 0. */
jz 1f
lr %r2,%r8
br %r9
1: lhi %r2,0 /* EXIT return value. */
basr %r13,0
2:
#ifdef PIC
l %r12,4f-2b(%r13)
la %r12,0(%r12,%r13) /* GOT pointer in r12 after this. */
l %r1,3f-2b(%r13)
bas %r14,0(%r1,%r12)
.align 4
3:
.long HIDDEN_JUMPTARGET (exit)@GOTOFF
4:
.long _GLOBAL_OFFSET_TABLE_-2b
#else
l %r1,3f-2b(%r13)
basr %r14,%r1
.align 4
3:
.long HIDDEN_JUMPTARGET (exit)
#endif
.align 2
j .+2 /* Trap if exit returns for some reason. */
END(__makecontext_ret)
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