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b5fe317cc8
(UNW_PI_FLAG_IA64_RBS_SWITCH_BIT): New macro. (UNW_PI_FLAG_IA64_RBS_SWITCH): Ditto. (Logical change 1.39)
125 lines
4.8 KiB
C
125 lines
4.8 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2001-2003 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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#include <stdint.h>
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#include <ucontext.h>
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#define UNW_TARGET ia64
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#define UNW_TARGET_IA64 1
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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 511
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/* If this bit is it indicates that the procedure saved all of ar.bsp,
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ar.bspstore, and ar.rnat. If, additionally, ar.bsp != saved ar.bsp,
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then this procedure has performed a register-backing-store switch. */
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#define UNW_PI_FLAG_IA64_RBS_SWITCH_BIT (UNW_PI_FLAG_FIRST_TDEP_BIT + 0)
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#define UNW_PI_FLAG_IA64_RBS_SWITCH (1 << UNW_PI_FLAG_IA64_RBS_SWITCH_BIT)
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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_TDEP_LAST_REG = UNW_IA64_SP,
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UNW_TDEP_IP = UNW_IA64_IP,
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UNW_TDEP_SP = UNW_IA64_SP
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}
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ia64_regnum_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), 0)
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#define unw_tdep_is_fpreg(r) ((unsigned) ((r) - UNW_IA64_FR) < 128)
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#include "libunwind-common.h"
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/* This is a helper routine which the get_dyn_info_list_addr()
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callback can use to locate the special dynamic-info list entry in
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an IA-64 unwind table. If the entry exists in the table, the
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list-address is returned. In all other cases, 0 is returned. */
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unw_word_t _Uia64_find_dyn_list (unw_addr_space_t as,
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void *table, size_t table_size,
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unw_word_t segbase, void *arg);
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#endif /* LIBUNWIND_H */
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