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