Add powerpc port done by David Schleef <ds@schleef.org>

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])