From 39f83819e26ed9c63386bdf254d2f6751f54cce9 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Fri, 16 Mar 2001 01:06:29 +0000 Subject: Add powerpc port done by David Schleef --- libc/sysdeps/linux/powerpc/bits/setjmp.h | 47 ++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libc/sysdeps/linux/powerpc/bits/setjmp.h (limited to 'libc/sysdeps/linux/powerpc/bits/setjmp.h') 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 directly; use 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]) -- cgit v1.2.3