diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S b/REORG.TODO/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S new file mode 100644 index 0000000000..16901638b5 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S @@ -0,0 +1,37 @@ +/* Copyright (C) 2012-2017 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 + ltgr %r8,%r8 /* Check whether uc_link is 0. */ + jz 1f + lgr %r2,%r8 + br %r9 +1: lghi %r2,0 + brasl %r14,HIDDEN_JUMPTARGET (exit) + j .+2 /* Trap if exit returns. */ +END(__makecontext_ret) |