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123 lines
4.5 KiB
C
123 lines
4.5 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2001-2002 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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libunwind is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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libunwind is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public
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License. */
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#include <ucontext.h>
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typedef uint64_t unw_tdep_word_t;
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typedef enum
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{
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/* Note: general registers are excepted 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_IA64_GR = 0, /* general registers (r0..r127) */
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UNW_IA64_GP = UNW_IA64_GR + 1,
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UNW_IA64_TP = UNW_IA64_GR + 13,
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UNW_IA64_NAT = UNW_IA64_GR + 128, /* NaT registers (nat0..nat127) */
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UNW_IA64_FR = UNW_IA64_NAT + 128, /* fp registers (f0..f127) */
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UNW_IA64_AR = UNW_IA64_FR + 128, /* application registers (ar0..r127) */
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UNW_IA64_AR_RSC = UNW_IA64_AR + 16,
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UNW_IA64_AR_BSP = UNW_IA64_AR + 17,
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UNW_IA64_AR_BSPSTORE = UNW_IA64_AR + 18,
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UNW_IA64_AR_RNAT = UNW_IA64_AR + 19,
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UNW_IA64_AR_25 = UNW_IA64_AR + 25, /* reserved (scratch) */
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UNW_IA64_AR_26 = UNW_IA64_AR + 26, /* reserved (scratch) */
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UNW_IA64_AR_CCV = UNW_IA64_AR + 32,
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UNW_IA64_AR_UNAT = UNW_IA64_AR + 36,
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UNW_IA64_AR_FPSR = UNW_IA64_AR + 40,
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UNW_IA64_AR_PFS = UNW_IA64_AR + 64,
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UNW_IA64_AR_LC = UNW_IA64_AR + 65,
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UNW_IA64_AR_EC = UNW_IA64_AR + 66,
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UNW_IA64_BR = UNW_IA64_AR + 128, /* branch registers (b0..p7) */
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UNW_IA64_PR = UNW_IA64_BR + 8, /* predicate registers (p0..p63) */
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UNW_IA64_CFM,
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/* frame info (read-only): */
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UNW_IA64_BSP,
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UNW_IA64_IP,
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UNW_IA64_SP,
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UNW_IA64_PROC_START,
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UNW_IA64_HANDLER,
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UNW_IA64_LSDA,
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UNW_TDEP_LAST_REG = UNW_IA64_LSDA,
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UNW_TDEP_IP = UNW_IA64_IP,
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UNW_TDEP_SP = UNW_IA64_SP,
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UNW_TDEP_PROC_START = UNW_IA64_PROC_START,
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UNW_TDEP_HANDLER = UNW_IA64_HANDLER,
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UNW_TDEP_LSDA = UNW_IA64_LSDA,
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}
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ia64_regnum_t;
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/* Info needed for a single IA-64 unwind. A pointer to this structure
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is expected in the acquire/release callbacks of the unwind
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accessors. */
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typedef struct unw_ia64_table
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{
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const char *name; /* table name (or NULL if none) */
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unw_tdep_word_t segbase; /* base for offsets in the unwind table */
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unw_tdep_word_t start; /* starting IP covered by table */
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unw_tdep_word_t end; /* first IP _not_ covered table */
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unw_tdep_word_t gp; /* global pointer for this load-module */
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unw_tdep_word_t length; /* number of entries in unwind table array */
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/* Pointer to local copy of the unwind descriptor table: */
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void *array;
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/* Local copy of the unwind descriptor information. This is
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initialized such that adding the unwind entry's info_offset
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yields the address at which the corresponding descriptors can
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be found. */
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const unsigned char *unwind_info_base;
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}
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unw_ia64_table_t;
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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. On IA-64,
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we could use this to specify the bit number in which a NaT bit
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gets saved. For now, nobody wants to know this, so it's not
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currently implemented. */
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}
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unw_tdep_save_loc_t;
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/* On IA-64, 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)
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