summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/powerpc/bits/setjmp.h
diff options
context:
space:
mode:
authorEric Andersen <andersen@codepoet.org>2001-03-16 01:06:29 +0000
committerEric Andersen <andersen@codepoet.org>2001-03-16 01:06:29 +0000
commit39f83819e26ed9c63386bdf254d2f6751f54cce9 (patch)
tree45ffe8236f3641ca0b5a9704b5c2b32d52e19d95 /libc/sysdeps/linux/powerpc/bits/setjmp.h
parentaed7ad54eb30fc388b95f98ad4980e8133975656 (diff)
Add powerpc port done by David Schleef <ds@schleef.org>
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/setjmp.h')
-rw-r--r--libc/sysdeps/linux/powerpc/bits/setjmp.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/setjmp.h b/libc/sysdeps/linux/powerpc/bits/setjmp.h
new file mode 100644
index 000000000..da3f4379d
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/setjmp.h
@@ -0,0 +1,47 @@
+/* Copyright (C) 1997, 1998, 2000 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* Define the machine-dependent type `jmp_buf'. PowerPC version. */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+/* The previous bits/setjmp.h had __jmp_buf defined as a structure.
+ We use an array of 'long int' instead, to make writing the
+ assembler easier. Naturally, user code should not depend on
+ either representation. */
+
+#if defined __USE_MISC || defined _ASM
+# define JB_GPR1 0 /* Also known as the stack pointer */
+# define JB_GPR2 1
+# define JB_LR 2 /* The address we will return to */
+# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */
+# define JB_CR 21 /* Condition code registers. */
+# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */
+# define JB_SIZE (58*4)
+#endif
+
+#ifndef _ASM
+typedef long int __jmp_buf[58];
+#endif
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)[JB_GPR1])