mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-24 00:07:39 +01:00
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/* libunwind - a platform-independent unwind library
|
|
Copyright (C) 2002-2003 Hewlett-Packard Co
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
|
|
|
This file is part of libunwind.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
#ifndef LIBUNWIND_H
|
|
#define LIBUNWIND_H
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <inttypes.h>
|
|
#include <ucontext.h>
|
|
|
|
#define UNW_TARGET x86
|
|
#define UNW_TARGET_X86 1
|
|
|
|
#define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */
|
|
|
|
/* This needs to be big enough to accommodate "struct cursor", while
|
|
leaving some slack for future expansion. Changing this value will
|
|
require recompiling all users of this library. Stack allocation is
|
|
relatively cheap and unwind-state copying is relatively rare, so we
|
|
want to err on making it rather too big than too small. */
|
|
#define UNW_TDEP_CURSOR_LEN 127
|
|
|
|
typedef uint32_t unw_tdep_word_t;
|
|
|
|
typedef long double unw_tdep_fpreg_t;
|
|
|
|
typedef enum
|
|
{
|
|
/* Note: general registers are expected to start with index 0.
|
|
This convention facilitates architecture-independent
|
|
implementation of the C++ exception handling ABI. See
|
|
_Unwind_SetGR() and _Unwind_GetGR() for details. */
|
|
UNW_X86_EAX,
|
|
UNW_X86_EBX,
|
|
UNW_X86_ECX,
|
|
UNW_X86_EDX,
|
|
UNW_X86_ESI,
|
|
UNW_X86_EDI,
|
|
UNW_X86_EBP,
|
|
UNW_X86_EIP,
|
|
UNW_X86_ESP,
|
|
|
|
UNW_TDEP_LAST_REG = UNW_X86_ESP,
|
|
|
|
UNW_TDEP_IP = UNW_X86_EIP,
|
|
UNW_TDEP_SP = UNW_X86_ESP,
|
|
UNW_TDEP_EH = UNW_X86_EAX
|
|
}
|
|
x86_regnum_t;
|
|
|
|
#define UNW_TDEP_NUM_EH_REGS 2 /* eax and ebx are exception args */
|
|
|
|
typedef struct unw_tdep_save_loc
|
|
{
|
|
/* Additional target-dependent info on a save location. */
|
|
}
|
|
unw_tdep_save_loc_t;
|
|
|
|
/* On x86, we can directly use ucontext_t as the unwind context. */
|
|
typedef ucontext_t unw_tdep_context_t;
|
|
|
|
/* XXX this is not ideal: an application should not be prevented from
|
|
using the "getcontext" name just because it's using libunwind. We
|
|
can't just use __getcontext() either, because that isn't exported
|
|
by glibc... */
|
|
#define unw_tdep_getcontext(uc) (getcontext (uc), 0)
|
|
|
|
/* XXX fixme: */
|
|
#define unw_tdep_is_fpreg(r) ((unsigned) ((r) - UNW_X86_FR) < 128)
|
|
|
|
#include "libunwind-common.h"
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* LIBUNWIND_H */
|