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80
include/libunwind-x86.h
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/* libunwind - a platform-independent unwind library
Copyright (C) 2002 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
#include <stdint.h>
#include <ucontext.h>
#define UNW_TARGET x86
#define UNW_TARGET_X86 1
typedef uint32_t unw_tdep_word_t;
typedef enum
{
/* Note: general registers are excepted 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
}
x86_regnum_t;
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"
#endif /* LIBUNWIND_H */

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include/tdep-x86.h
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/* libunwind - a platform-independent unwind library
Copyright (C) 2002 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 TDEP_X86_H
#define TDEP_X86_H
/* Target-dependent definitions that are internal to libunwind but need
to be shared with target-independent code. */
#include <stdlib.h>
#include <libunwind.h>
enum x86_pregnum
{
X86_NUM_PREGS
};
struct x86_loc
{
unw_word_t val;
#ifndef UNW_LOCAL_ONLY
unw_word_t type; /* see X86_LOC_TYPE_* macros. */
#endif
};
struct unw_addr_space
{
struct unw_accessors acc;
unw_caching_policy_t caching_policy;
uint32_t cache_generation;
unw_word_t dyn_generation; /* see dyn-common.h */
};
struct cursor
{
unw_addr_space_t as;
void *as_arg;
/* IP & SP cache: */
unw_word_t eip;
unw_word_t esp;
struct x86_loc eip_loc;
struct x86_loc ebp_loc;
};
/* Platforms that support UNW_INFO_FORMAT_TABLE need to define
tdep_search_unwind_table. */
#define tdep_search_unwind_table(a,b,c,d,e,f) \
UNW_ARCH_OBJ(search_unwind_table) (a,b,c,d,e,f)
#define tdep_find_proc_info(as,ip,pi,n,a) \
UNW_ARCH_OBJ(find_proc_info) (as,ip,pi,n,a)
#define tdep_put_unwind_info(a,b,c) UNW_ARCH_OBJ(put_unwind_info)(a,b,c)
#define tdep_uc_addr(uc,reg) UNW_ARCH_OBJ(uc_addr)(uc,reg)
#define tdep_debug_level UNW_ARCH_OBJ(debug_level)
extern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip,
unw_dyn_info_t *di, unw_proc_info_t *pi,
int need_unwind_info, void *arg);
extern int tdep_find_proc_info (unw_addr_space_t as, unw_word_t ip,
unw_proc_info_t *pi, int need_unwind_info,
void *arg);
extern void tdep_put_unwind_info (unw_addr_space_t as,
unw_proc_info_t *pi, void *arg);
extern void *tdep_uc_addr (ucontext_t *uc, int reg);
extern int tdep_debug_level;
#endif /* TDEP_X86_H */