From 0078a92e395d3e351c0ff23536781b58a800131e Mon Sep 17 00:00:00 2001 From: "Peter S. Mazinger" Date: Sun, 13 Mar 2011 20:56:54 +0100 Subject: add jmpbuf-offsets.h and jmpbuf-unwind.h for all archs (LT related) Signed-off-by: Peter S. Mazinger Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/x86_64/jmpbuf-offsets.h | 46 ++++++++++++++++++++++++++++++ libc/sysdeps/linux/x86_64/jmpbuf-unwind.h | 17 +++++++++++ 2 files changed, 63 insertions(+) create mode 100644 libc/sysdeps/linux/x86_64/jmpbuf-offsets.h create mode 100644 libc/sysdeps/linux/x86_64/jmpbuf-unwind.h (limited to 'libc/sysdeps/linux/x86_64') 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 + +#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 + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ +#include +#include + +/* 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 -- cgit v1.2.3