libunwind_i.h revision e2962af9d31266761700b431da894421c0d757ec
13842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* libunwind - a platform-independent unwind library 23842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz Copyright (C) 2008 CodeSourcery 33842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 43842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzThis file is part of libunwind. 53842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 63842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzPermission is hereby granted, free of charge, to any person obtaining 73842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitza copy of this software and associated documentation files (the 83842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz"Software"), to deal in the Software without restriction, including 93842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzwithout limitation the rights to use, copy, modify, merge, publish, 103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdistribute, sublicense, and/or sell copies of the Software, and to 113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzpermit persons to whom the Software is furnished to do so, subject to 123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzthe following conditions: 133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 143842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzThe above copyright notice and this permission notice shall be 153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzincluded in all copies or substantial portions of the Software. 163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 173842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 183842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 193842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 203842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 213842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzLIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 223842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzOF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 233842dac7333e42aa44531eda34ba55200b99ccf8Daniel JacobowitzWITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifndef MIPS_LIBUNWIND_I_H 263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define MIPS_LIBUNWIND_I_H 273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* Target-dependent definitions that are internal to libunwind but need 293842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz to be shared with target-independent code. */ 303842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include <stdlib.h> 323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include <libunwind.h> 333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#if !defined(UNW_REMOTE_ONLY) && _MIPS_SIM == _ABI64 353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# include "elf64.h" 363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else 373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# include "elf32.h" 383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include "mempool.h" 403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include "dwarf.h" 413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 425f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuratypedef struct 435f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura { 445f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura /* no mips-specific fast trace */ 455f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura } 465f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuraunw_tdep_frame_t; 475f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura 483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstruct unw_addr_space 493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_accessors acc; 513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int big_endian; 533842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz mips_abi_t abi; 543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unsigned int addr_size; 553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_caching_policy_t caching_policy; 573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef HAVE_ATOMIC_OPS_H 583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz AO_t cache_generation; 593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else 603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz uint32_t cache_generation; 613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t dyn_generation; /* see dyn-common.h */ 633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */ 643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct dwarf_rs_cache global_cache; 653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_debug_frame_list *debug_frames; 663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz}; 673842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_big_endian(as) ((as)->big_endian) 693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 703842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstruct cursor 713842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 723842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct dwarf_cursor dwarf; /* must be first */ 733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t sigcontext_addr; 743842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz }; 753842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define DWARF_GET_LOC(l) ((l).val) 773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifndef UNW_REMOTE_ONLY 793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# if _MIPS_SIM == _ABIN32 803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitztypedef long long mips_reg_t; 813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# else 823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitztypedef long mips_reg_t; 833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# endif 843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef UNW_LOCAL_ONLY 873842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_NULL_LOC DWARF_LOC (0, 0) 883842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0) 893842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) }) 903842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_REG_LOC(l) 0 913842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) (intptr_t) \ 923842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_uc_addr((c)->as_arg, (r)), 0)) 933842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 943842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) (intptr_t) \ 953842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_uc_addr((c)->as_arg, (r)), 0)) 963842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 973842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* FIXME: Implement these for the MIPS FPU. */ 983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 993842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 1003842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1013842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1023842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1033842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = *(unw_fpreg_t *) (intptr_t) DWARF_GET_LOC (loc); 1043842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1053842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1063842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1073842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1083842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 1093842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *(unw_fpreg_t *) (intptr_t) DWARF_GET_LOC (loc) = val; 1133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1143842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1173842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 1183842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1193842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1203842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1213842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = *(mips_reg_t *) (intptr_t) DWARF_GET_LOC (loc); 1223842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1233842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 1273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1293842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1303842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *(mips_reg_t *) (intptr_t) DWARF_GET_LOC (loc) = val; 1313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else /* !UNW_LOCAL_ONLY */ 1353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC_TYPE_FP (1 << 0) 1363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC_TYPE_REG (1 << 1) 1373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_NULL_LOC DWARF_LOC (0, 0) 1383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_NULL_LOC(l) \ 1393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; }) 1403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) }) 1413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0) 1423842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0) 1433842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG) 1443842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 1453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \ 1463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz | DWARF_LOC_TYPE_FP)) 1473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzread_s32 (struct dwarf_cursor *c, unw_word_t addr, unw_word_t *val) 1503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int offset = addr & 4; 1523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 1533842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t memval; 1543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz ret = (*c->as->acc.access_mem) (c->as, addr - offset, &memval, 0, c->as_arg); 1563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (ret < 0) 1573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 1583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((offset != 0) == tdep_big_endian (c->as)) 1603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = (int32_t) memval; 1613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 1623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = (int32_t) (memval >> 32); 1633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1673842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzwrite_s32 (struct dwarf_cursor *c, unw_word_t addr, const unw_word_t *val) 1693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1703842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int offset = addr & 4; 1713842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 1723842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t memval; 1733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1743842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz ret = (*c->as->acc.access_mem) (c->as, addr - offset, &memval, 0, c->as_arg); 1753842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (ret < 0) 1763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 1773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((offset != 0) == tdep_big_endian (c->as)) 1793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz memval = (memval & ~0xffffffffLL) | (uint32_t) *val; 1803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 1813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz memval = (memval & 0xffffffffLL) | (uint32_t) (*val << 32); 1823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, addr - offset, &memval, 1, c->as_arg); 1843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* FIXME: Implement these for the MIPS FPU. */ 1873842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1883842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 1893842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1903842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz char *valp = (char *) &val; 1913842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t addr; 1923842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 1933842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1943842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 1953842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 1963842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1973842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 1983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 1993842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz val, 0, c->as_arg); 2003842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2013842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz addr = DWARF_GET_LOC (loc); 2023842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 2033842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg)) < 0) 2043842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 2053842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2063842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 0, 2073842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz c->as_arg); 2083842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2093842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 2113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 2123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 2133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz char *valp = (char *) &val; 2143842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t addr; 2153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 2163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2173842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 2183842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 2193842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2203842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 2213842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 2223842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz &val, 1, c->as_arg); 2233842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz addr = DWARF_GET_LOC (loc); 2253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 2263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg)) < 0) 2273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 2283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2293842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 2303842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 2313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 2343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 2353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 2363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 2373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 2383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* If a code-generator were to save a value of type unw_word_t in a 2403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz floating-point register, we would have to support this case. I 2413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz suppose it could happen with MMX registers, but does it really 2423842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz happen? */ 2433842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz assert (!DWARF_IS_FP_LOC (loc)); 2443842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 2463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val, 2473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg); 2483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else if (c->as->abi == UNW_MIPS_ABI_O32) 2493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return read_s32 (c, DWARF_GET_LOC (loc), val); 2503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 2513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val, 2523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg); 2533842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 2563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 2573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 2583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 2593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 2603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* If a code-generator were to save a value of type unw_word_t in a 2623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz floating-point register, we would have to support this case. I 2633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz suppose it could happen with MMX registers, but does it really 2643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz happen? */ 2653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz assert (!DWARF_IS_FP_LOC (loc)); 2663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2673842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 2683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val, 2693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 2703842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else if (c->as->abi == UNW_MIPS_ABI_O32) 2713842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return write_s32 (c, DWARF_GET_LOC (loc), &val); 2723842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 2733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val, 2743842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 2753842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif /* !UNW_LOCAL_ONLY */ 2783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 279e2962af9d31266761700b431da894421c0d757ecArun Sharma#define tdep_getcontext_trace unw_getcontext 2803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_needs_initialization UNW_OBJ(needs_initialization) 2813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_init UNW_OBJ(init) 2823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* Platforms that support UNW_INFO_FORMAT_TABLE need to define 2833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_search_unwind_table. */ 2843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_search_unwind_table dwarf_search_unwind_table 2853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr) 2863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image) 2873842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_access_reg UNW_OBJ(access_reg) 2883842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_access_fpreg UNW_OBJ(access_fpreg) 289dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_fetch_frame(c,ip,n) do {} while(0) 290dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_cache_frame(c,rs) do {} while(0) 291dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_reuse_frame(c,rs) do {} while(0) 2929e98f15e9aee12e67cd5956d06ccb559f6a06213Lassi Tuura#define tdep_stash_frame(c,rs) do {} while(0) 2935f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura#define tdep_trace(cur,addr,n) (-UNW_ENOINFO) 2943842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2953842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef UNW_LOCAL_ONLY 2963842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_find_proc_info(c,ip,n) \ 2973842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \ 2983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (c)->as_arg) 2993842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_put_unwind_info(as,pi,arg) \ 3003842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz dwarf_put_unwind_info((as), (pi), (arg)) 3013842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else 3023842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_find_proc_info(c,ip,n) \ 3033842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \ 3043842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (c)->as_arg) 3053842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_put_unwind_info(as,pi,arg) \ 3063842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (*(as)->acc.put_unwind_info)((as), (pi), (arg)) 3073842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 3083842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 3093842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_as(c) ((c)->dwarf.as) 3103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_as_arg(c) ((c)->dwarf.as_arg) 3113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_ip(c) ((c)->dwarf.ip) 3123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 3133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_needs_initialization; 3143842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 3153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern void tdep_init (void); 3163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip, 3173842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_dyn_info_t *di, unw_proc_info_t *pi, 3183842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int need_unwind_info, void *arg); 3193842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern void *tdep_uc_addr (ucontext_t *uc, int reg); 3203842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip, 3211787a2fd284a786b409af74047a12de02c644cd1Arun Sharma unsigned long *segbase, unsigned long *mapoff, 3221787a2fd284a786b409af74047a12de02c644cd1Arun Sharma char *path, size_t pathlen); 3233842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_access_reg (struct cursor *c, unw_regnum_t reg, 3243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t *valp, int write); 3253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, 3263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_fpreg_t *valp, int write); 3273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 3283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif /* MIPS_LIBUNWIND_I_H */ 329