libunwind_i.h revision 5d0f376b08126b51a001d7cdfba1ec4e0d644f54
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 ARM_LIBUNWIND_I_H 263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define ARM_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#include "elf32.h" 353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include "mempool.h" 363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#include "dwarf.h" 37ffc474b8c8972200642acaef3e5aa10ee853609aZachary T Welch#include "ex_tables.h" 383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 395f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuratypedef struct 405f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura { 415f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura /* no arm-specific fast trace */ 425f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura } 435f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuraunw_tdep_frame_t; 445f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura 453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstruct unw_addr_space 463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_accessors acc; 483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int big_endian; 493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_caching_policy_t caching_policy; 503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef HAVE_ATOMIC_OPS_H 513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz AO_t cache_generation; 523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else 533842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz uint32_t cache_generation; 543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t dyn_generation; /* see dyn-common.h */ 563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */ 573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct dwarf_rs_cache global_cache; 583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_debug_frame_list *debug_frames; 593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz }; 603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstruct cursor 623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz { 633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct dwarf_cursor dwarf; /* must be first */ 6436511d3d1f040bbf778094e907725ad0617326c8Ken Werner enum 6536511d3d1f040bbf778094e907725ad0617326c8Ken Werner { 6636511d3d1f040bbf778094e907725ad0617326c8Ken Werner ARM_SCF_NONE, /* no signal frame */ 6736511d3d1f040bbf778094e907725ad0617326c8Ken Werner ARM_SCF_LINUX_SIGFRAME, /* non-RT signal frame, kernel >=2.6.18 */ 6836511d3d1f040bbf778094e907725ad0617326c8Ken Werner ARM_SCF_LINUX_RT_SIGFRAME, /* RT signal frame, kernel >=2.6.18 */ 6936511d3d1f040bbf778094e907725ad0617326c8Ken Werner ARM_SCF_LINUX_OLD_SIGFRAME, /* non-RT signal frame, kernel < 2.6.18 */ 7036511d3d1f040bbf778094e907725ad0617326c8Ken Werner ARM_SCF_LINUX_OLD_RT_SIGFRAME /* RT signal frame, kernel < 2.6.18 */ 7136511d3d1f040bbf778094e907725ad0617326c8Ken Werner } 7236511d3d1f040bbf778094e907725ad0617326c8Ken Werner sigcontext_format; 733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t sigcontext_addr; 7436511d3d1f040bbf778094e907725ad0617326c8Ken Werner unw_word_t sigcontext_sp; 7536511d3d1f040bbf778094e907725ad0617326c8Ken Werner unw_word_t sigcontext_pc; 763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz }; 773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define DWARF_GET_LOC(l) ((l).val) 793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef UNW_LOCAL_ONLY 813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_NULL_LOC DWARF_LOC (0, 0) 823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0) 833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) }) 843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_REG_LOC(l) 0 853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \ 863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_uc_addr((c)->as_arg, (r)), 0)) 873842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 883842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \ 893842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_uc_addr((c)->as_arg, (r)), 0)) 903842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 913842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 923842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 933842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 943842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 953842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 963842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = *(unw_fpreg_t *) DWARF_GET_LOC (loc); 973842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 993842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1003842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1013842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 1023842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1033842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1043842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1053842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *(unw_fpreg_t *) DWARF_GET_LOC (loc) = val; 1063842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1073842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1083842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1093842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 1113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1143842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *val = *(unw_word_t *) DWARF_GET_LOC (loc); 1153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1173842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1183842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1193842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 1203842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1213842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (!DWARF_GET_LOC (loc)) 1223842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -1; 1233842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz *(unw_word_t *) DWARF_GET_LOC (loc) = val; 1243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return 0; 1253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else /* !UNW_LOCAL_ONLY */ 1283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC_TYPE_FP (1 << 0) 1293842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC_TYPE_REG (1 << 1) 1303842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_NULL_LOC DWARF_LOC (0, 0) 1313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_NULL_LOC(l) \ 1323842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; }) 1333842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) }) 1343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0) 1353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0) 1363842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG) 1373842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 1383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \ 1393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz | DWARF_LOC_TYPE_FP)) 1403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1423842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 1433842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1443842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz char *valp = (char *) &val; 1453842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t addr; 1463842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 1473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 1493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 1503842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 1523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 1533842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz val, 0, c->as_arg); 1543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz addr = DWARF_GET_LOC (loc); 1563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 1573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg)) < 0) 1583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 1593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 0, 1613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz c->as_arg); 1623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 1663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1673842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz char *valp = (char *) &val; 1683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t addr; 1693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int ret; 1703842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1713842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 1723842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 1733842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1743842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 1753842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 1763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz &val, 1, c->as_arg); 1773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1783842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz addr = DWARF_GET_LOC (loc); 1793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 1803842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg)) < 0) 1813842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return ret; 1823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 1843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 1853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 1863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1873842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 1883842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 1893842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 1903842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 1913842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 1923842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1933842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* If a code-generator were to save a value of type unw_word_t in a 1943842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz floating-point register, we would have to support this case. I 1953842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz suppose it could happen with MMX registers, but does it really 1963842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz happen? */ 1973842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz assert (!DWARF_IS_FP_LOC (loc)); 1983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1993842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 2003842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val, 2013842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg); 2023842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 2033842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val, 2043842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 0, c->as_arg); 2053842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2063842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2073842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzstatic inline int 2083842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 2093842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz{ 2103842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_NULL_LOC (loc)) 2113842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return -UNW_EBADREG; 2123842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2133842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz /* If a code-generator were to save a value of type unw_word_t in a 2143842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz floating-point register, we would have to support this case. I 2153842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz suppose it could happen with MMX registers, but does it really 2163842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz happen? */ 2173842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz assert (!DWARF_IS_FP_LOC (loc)); 2183842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2193842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz if (DWARF_IS_REG_LOC (loc)) 2203842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val, 2213842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 2223842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz else 2233842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val, 2243842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 1, c->as_arg); 2253842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz} 2263842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2273842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif /* !UNW_LOCAL_ONLY */ 2283842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 229e2962af9d31266761700b431da894421c0d757ecArun Sharma#define tdep_getcontext_trace unw_getcontext 2305d0f376b08126b51a001d7cdfba1ec4e0d644f54Tommi Rantala#define tdep_init_done UNW_OBJ(init_done) 2313842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_init UNW_OBJ(init) 232545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner#define arm_find_proc_info UNW_OBJ(find_proc_info) 233545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner#define arm_put_unwind_info UNW_OBJ(put_unwind_info) 2343842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz/* Platforms that support UNW_INFO_FORMAT_TABLE need to define 2353842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz tdep_search_unwind_table. */ 236545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner#define tdep_search_unwind_table UNW_OBJ(search_unwind_table) 237d93d96ad833390519ea68a2df22dd55dd26a3214Martin Milata#define tdep_find_unwind_table dwarf_find_unwind_table 2383842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr) 2393842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image) 2403842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_access_reg UNW_OBJ(access_reg) 2413842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_access_fpreg UNW_OBJ(access_fpreg) 242dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_fetch_frame(c,ip,n) do {} while(0) 243dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_cache_frame(c,rs) do {} while(0) 244dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_reuse_frame(c,rs) do {} while(0) 2459e98f15e9aee12e67cd5956d06ccb559f6a06213Lassi Tuura#define tdep_stash_frame(c,rs) do {} while(0) 2465f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura#define tdep_trace(cur,addr,n) (-UNW_ENOINFO) 2473842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2483842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#ifdef UNW_LOCAL_ONLY 2493842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_find_proc_info(c,ip,n) \ 250545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner arm_find_proc_info((c)->as, (ip), &(c)->pi, (n), \ 2513842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (c)->as_arg) 2523842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_put_unwind_info(as,pi,arg) \ 253545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner arm_put_unwind_info((as), (pi), (arg)) 2543842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#else 2553842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_find_proc_info(c,ip,n) \ 2563842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \ 2573842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (c)->as_arg) 2583842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz# define tdep_put_unwind_info(as,pi,arg) \ 2593842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz (*(as)->acc.put_unwind_info)((as), (pi), (arg)) 2603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif 2613842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2623842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_as(c) ((c)->dwarf.as) 2633842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_as_arg(c) ((c)->dwarf.as_arg) 2643842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_get_ip(c) ((c)->dwarf.ip) 2653842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#define tdep_big_endian(as) ((as)->big_endian) 2663842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2675d0f376b08126b51a001d7cdfba1ec4e0d644f54Tommi Rantalaextern int tdep_init_done; 2683842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 2693842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern void tdep_init (void); 270545023c2072975c6b85a09d5faf2cf05db10e064Ken Wernerextern int arm_find_proc_info (unw_addr_space_t as, unw_word_t ip, 271545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner unw_proc_info_t *pi, int need_unwind_info, 272545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner void *arg); 273545023c2072975c6b85a09d5faf2cf05db10e064Ken Wernerextern void arm_put_unwind_info (unw_addr_space_t as, 274545023c2072975c6b85a09d5faf2cf05db10e064Ken Werner unw_proc_info_t *pi, void *arg); 2753842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip, 2763842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_dyn_info_t *di, unw_proc_info_t *pi, 2773842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz int need_unwind_info, void *arg); 2780eba2169fb19ef0707a2c96201e33769001b5f11Ken Wernerextern void *tdep_uc_addr (unw_tdep_context_t *uc, int reg); 2793842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip, 2801787a2fd284a786b409af74047a12de02c644cd1Arun Sharma unsigned long *segbase, unsigned long *mapoff, 2811787a2fd284a786b409af74047a12de02c644cd1Arun Sharma char *path, size_t pathlen); 2823842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_access_reg (struct cursor *c, unw_regnum_t reg, 2833842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_word_t *valp, int write); 2843842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitzextern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, 2853842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz unw_fpreg_t *valp, int write); 2863842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz 28700aed9631b112d7aa7adc98054b62549cfc857daArun Sharma/* unwinding method selection support */ 28800aed9631b112d7aa7adc98054b62549cfc857daArun Sharma#define UNW_ARM_METHOD_ALL 0xFF 28900aed9631b112d7aa7adc98054b62549cfc857daArun Sharma#define UNW_ARM_METHOD_DWARF 0x01 29000aed9631b112d7aa7adc98054b62549cfc857daArun Sharma#define UNW_ARM_METHOD_FRAME 0x02 2916a671546741e8355dd9f821f171e4a3c895d28ecZachary T Welch#define UNW_ARM_METHOD_EXIDX 0x04 29200aed9631b112d7aa7adc98054b62549cfc857daArun Sharma 293ec633a1911e365ba6016fa9fcbd81cad72f7afdbKen Werner#define unwi_unwind_method UNW_OBJ(unwind_method) 29400aed9631b112d7aa7adc98054b62549cfc857daArun Sharmaextern int unwi_unwind_method; 29500aed9631b112d7aa7adc98054b62549cfc857daArun Sharma 29600aed9631b112d7aa7adc98054b62549cfc857daArun Sharma#define UNW_TRY_METHOD(x) (unwi_unwind_method & x) 29700aed9631b112d7aa7adc98054b62549cfc857daArun Sharma 2983842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz#endif /* ARM_LIBUNWIND_I_H */ 299