diff options
Diffstat (limited to 'libc/sysdeps/linux/cris/bits/setjmp.h')
-rw-r--r-- | libc/sysdeps/linux/cris/bits/setjmp.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/cris/bits/setjmp.h b/libc/sysdeps/linux/cris/bits/setjmp.h new file mode 100644 index 000000000..ba9cbc93c --- /dev/null +++ b/libc/sysdeps/linux/cris/bits/setjmp.h @@ -0,0 +1,64 @@ +/* Copyright (C) 1997, 1998 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'. CRIS version. */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +/* + Note that we save and restore CCR to be able to + correctly handle DI/EI. Note also that the "move x,ccr" does NOT affect + the DMA enable bits (E and D). + + jmp_buf[0] - PC + jmp_buf[1] - SP (R14) + jmp_buf[2] - R13 + jmp_buf[3] - R12 + jmp_buf[4] - R11 + jmp_buf[5] - R10 + jmp_buf[6] - R9 + jmp_buf[7] - R8 + jmp_buf[8] - R7 + jmp_buf[9] - R6 + jmp_buf[10] - R5 + jmp_buf[11] - R4 + jmp_buf[12] - R3 + jmp_buf[13] - R2 + jmp_buf[14] - R1 + jmp_buf[15] - R0 + jmp_buf[16] - SRP + jmp_buf[17] - CCR + */ + +#define _JBLEN 18 +#if defined (__USE_MISC) || defined (_ASM) +#define JB_SP 1 +#endif + +#ifndef _ASM +typedef int __jmp_buf[_JBLEN]; +#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_SP]) + + |