diff options
| author | Peter S. Mazinger <ps.m@gmx.net> | 2011-03-13 20:56:54 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2012-06-15 14:00:23 +0200 |
| commit | 0078a92e395d3e351c0ff23536781b58a800131e (patch) | |
| tree | 39396e644f01bee3a2c8ddd009ec0fd521f3cff6 /libc/sysdeps/linux/x86_64 | |
| parent | 8f86b8a1977128e2795737fed2577b377cc2b15e (diff) | |
add jmpbuf-offsets.h and jmpbuf-unwind.h for all archs (LT related)
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/x86_64')
| -rw-r--r-- | libc/sysdeps/linux/x86_64/jmpbuf-offsets.h | 46 | ||||
| -rw-r--r-- | libc/sysdeps/linux/x86_64/jmpbuf-unwind.h | 17 |
2 files changed, 63 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/jmpbuf-offsets.h b/libc/sysdeps/linux/x86_64/jmpbuf-offsets.h new file mode 100644 index 000000000..ad5f80e78 --- /dev/null +++ b/libc/sysdeps/linux/x86_64/jmpbuf-offsets.h @@ -0,0 +1,46 @@ +/* Private macros for accessing __jmp_buf contents. x86-64 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> + +#if __WORDSIZE == 64 + +/* We only need to save callee-saved registers plus stackpointer and + program counter. */ +# define JB_RBX 0 +# define JB_RBP 1 +# define JB_R12 2 +# define JB_R13 3 +# define JB_R14 4 +# define JB_R15 5 +# define JB_RSP 6 +# define JB_PC 7 +# define JB_SIZE (8*8) + +#else + +# define JB_BX 0 +# define JB_SI 1 +# define JB_DI 2 +# define JB_BP 3 +# define JB_SP 4 +# define JB_PC 5 +# define JB_SIZE 24 + +#endif diff --git a/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h b/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h new file mode 100644 index 000000000..885f64f32 --- /dev/null +++ b/libc/sysdeps/linux/x86_64/jmpbuf-unwind.h @@ -0,0 +1,17 @@ +/* + * 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. */ +#if __WORDSIZE == 64 +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_RSP]) +#else +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_SP]) +#endif |