summaryrefslogtreecommitdiff
path: root/libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S')
-rw-r--r--libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S48
1 files changed, 48 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S b/libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
new file mode 100644
index 000000000..ab172bb72
--- /dev/null
+++ b/libc/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
@@ -0,0 +1,48 @@
+/* Copyright (C) 2012 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>
+
+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)