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-rw-r--r--libc/sysdeps/linux/powerpc/jmpbuf-offsets.h41
-rw-r--r--libc/sysdeps/linux/powerpc/jmpbuf-unwind.h12
2 files changed, 53 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/jmpbuf-offsets.h b/libc/sysdeps/linux/powerpc/jmpbuf-offsets.h
new file mode 100644
index 000000000..1b9f766b0
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/jmpbuf-offsets.h
@@ -0,0 +1,41 @@
+/* Private macros for accessing __jmp_buf contents. PowerPC version.
+ Copyright (C) 2006 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <bits/wordsize.h>
+
+#define JB_GPR1 0 /* Also known as the stack pointer */
+#define JB_GPR2 1
+#define JB_LR 2 /* The address we will return to */
+#if __WORDSIZE == 64
+# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18*2 words total. */
+# define JB_CR 21 /* Condition code registers with the VRSAVE at */
+ /* offset 172 (low half of the double word. */
+# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total. */
+# define JB_SIZE (64 * 8) /* As per PPC64-VMX ABI. */
+# define JB_VRSAVE 21 /* VRSAVE shares a double word with the CR at offset */
+ /* 168 (high half of the double word). */
+# define JB_VRS 40 /* VRs 20 through 31 are saved, 12*4 words total. */
+#else
+# 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 ((64 + (12 * 4)) * 4)
+# define JB_VRSAVE 62
+# define JB_VRS 64
+#endif
diff --git a/libc/sysdeps/linux/powerpc/jmpbuf-unwind.h b/libc/sysdeps/linux/powerpc/jmpbuf-unwind.h
new file mode 100644
index 000000000..c6f56042a
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/jmpbuf-unwind.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+
+/* 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])