diff --git a/src/dyn-remote.c b/src/dyn-remote.c deleted file mode 100644 index 7036ea96..00000000 --- a/src/dyn-remote.c +++ /dev/null @@ -1,299 +0,0 @@ -/* libunwind - a platform-independent unwind library - Copyright (C) 2001-2002 Hewlett-Packard Co - Contributed by David Mosberger-Tang - -This file is part of libunwind. - -Permission is hereby granted, free of charge, to any person obtaining -a copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be -included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE -LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - -#include - -#include "internal.h" -#include "tdep.h" - -static void -free_regions (unw_dyn_region_info_t *region) -{ - if (region->next) - free_regions (region->next); - free (region); -} - -static int -intern_op (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr, - unw_dyn_op_t *op, void *arg) -{ - int ret; - - if ((ret = fetch8 (as, a, addr, &op->tag, arg)) < 0 - || (ret = fetch8 (as, a, addr, &op->qp, arg)) < 0 - || (ret = fetch16 (as, a, addr, &op->reg, arg)) < 0 - || (ret = fetch32 (as, a, addr, &op->when, arg)) < 0 - || (ret = fetchw (as, a, addr, &op->val, arg)) < 0) - return ret; - return 0; -} - -static int -intern_regions (unw_addr_space_t as, unw_accessors_t *a, - unw_word_t *addr, unw_dyn_region_info_t **regionp, void *arg) -{ - uint32_t insn_count, op_count, i; - unw_dyn_region_info_t *region; - unw_word_t next_addr; - int ret; - - *regionp = NULL; - - if (!*addr) - return 0; /* NULL region-list */ - - if ((ret = fetchw (as, a, addr, &next_addr, arg)) < 0 - || (ret = fetch32 (as, a, addr, (int32_t *) &insn_count, arg)) < 0 - || (ret = fetch32 (as, a, addr, (int32_t *) &op_count, arg)) < 0) - return ret; - - region = calloc (1, _U_dyn_region_info_size (op_count)); - if (!region) - { - ret = -UNW_ENOMEM; - goto out; - } - - region->insn_count = insn_count; - region->op_count = op_count; - for (i = 0; i < op_count; ++i) - if ((ret = intern_op (as, a, addr, region->op + i, arg)) < 0) - goto out; - - if (next_addr) - if ((ret = intern_regions (as, a, &next_addr, ®ion->next, arg)) < 0) - goto out; - - *regionp = region; - return 0; - - out: - if (region) - free_regions (region); - return ret; -} - -static int -intern_array (unw_addr_space_t as, unw_accessors_t *a, - unw_word_t *addr, unw_word_t table_len, unw_word_t **table_data, - void *arg) -{ - unw_word_t i, *data = calloc (table_len, WSIZE); - int ret = 0; - - if (!data) - { - ret = -UNW_ENOMEM; - goto out; - } - - for (i = 0; i < table_len; ++i) - if (fetchw (as, a, addr, data + i, arg) < 0) - goto out; - - *table_data = data; - return 0; - - out: - if (data) - free (data); - return ret; -} - -static void -free_dyn_info (unw_dyn_info_t *di) -{ - switch (di->format) - { - case UNW_INFO_FORMAT_DYNAMIC: - if (di->u.pi.regions) - { - free_regions (di->u.pi.regions); - di->u.pi.regions = NULL; - } - break; - - case UNW_INFO_FORMAT_TABLE: - if (di->u.ti.table_data) - { - free (di->u.ti.table_data); - di->u.ti.table_data = NULL; - } - break; - - case UNW_INFO_FORMAT_REMOTE_TABLE: - default: - break; - } -} - -static int -intern_dyn_info (unw_addr_space_t as, unw_accessors_t *a, - unw_word_t *addr, unw_dyn_info_t *di, void *arg) -{ - unw_word_t first_region; - int ret; - - switch (di->format) - { - case UNW_INFO_FORMAT_DYNAMIC: - if ((ret = fetchw (as, a, addr, &di->u.pi.name_ptr, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.pi.handler, arg)) < 0 - || (ret = fetch32 (as, a, addr, - (int32_t *) &di->u.pi.flags, arg)) < 0) - goto out; - *addr += 4; /* skip over pad0 */ - if ((ret = fetchw (as, a, addr, &first_region, arg)) < 0 - || (ret = intern_regions (as, a, &first_region, &di->u.pi.regions, - arg)) < 0) - goto out; - break; - - case UNW_INFO_FORMAT_TABLE: - if ((ret = fetchw (as, a, addr, &di->u.ti.name_ptr, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.ti.segbase, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.ti.table_len, arg)) < 0 - || (ret = intern_array (as, a, addr, di->u.ti.table_len, - &di->u.ti.table_data, arg)) < 0) - goto out; - break; - - case UNW_INFO_FORMAT_REMOTE_TABLE: - if ((ret = fetchw (as, a, addr, &di->u.rti.name_ptr, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.rti.segbase, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.rti.table_len, arg)) < 0 - || (ret = fetchw (as, a, addr, &di->u.rti.table_data, arg)) < 0) - goto out; - break; - - default: - ret = -UNW_ENOINFO; - goto out; - } - return 0; - - out: - free_dyn_info (di); - return ret; -} - -HIDDEN int -unwi_dyn_remote_find_proc_info (unw_addr_space_t as, unw_word_t ip, - unw_proc_info_t *pi, unw_word_t *genp, - int need_unwind_info, void *arg) -{ - unw_accessors_t *a = unw_get_accessors (as); - unw_word_t dyn_list_addr, addr, next_addr, gen1, gen2, start_ip, end_ip; - unw_dyn_info_t *di = NULL; - int ret; - - if (as->dyn_info_list_addr) - dyn_list_addr = as->dyn_info_list_addr; - else - { - if ((*a->get_dyn_info_list_addr) (as, &dyn_list_addr, arg) < 0) - return -UNW_ENOINFO; - if (as->caching_policy != UNW_CACHE_NONE) - as->dyn_info_list_addr = dyn_list_addr; - } - - do - { - addr = dyn_list_addr; - - ret = -UNW_ENOINFO; - - if (fetchw (as, a, &addr, &gen1, arg) < 0 - || fetchw (as, a, &addr, &next_addr, arg) < 0) - return ret; - - for (addr = next_addr; addr != 0; addr = next_addr) - { - if (fetchw (as, a, &addr, &next_addr, arg) < 0) - goto recheck; /* only fail if generation # didn't change */ - - addr += WSIZE; /* skip over prev_addr */ - - if (fetchw (as, a, &addr, &start_ip, arg) < 0 - || fetchw (as, a, &addr, &end_ip, arg) < 0) - goto recheck; /* only fail if generation # didn't change */ - - if (ip >= start_ip && ip < end_ip) - { - if (!di) - di = calloc (1, sizeof (*di)); - - di->start_ip = start_ip; - di->end_ip = end_ip; - - if (fetchw (as, a, &addr, &di->gp, arg) < 0 - || fetch32 (as, a, &addr, &di->format, arg) < 0) - goto recheck; /* only fail if generation # didn't change */ - - addr += 4; /* skip over padding */ - - if (need_unwind_info - && intern_dyn_info (as, a, &addr, di, arg) < 0) - goto recheck; /* only fail if generation # didn't change */ - - if (unwi_extract_dynamic_proc_info (as, ip, pi, di, - need_unwind_info, arg) < 0) - { - free_dyn_info (di); - goto recheck; /* only fail if generation # didn't change */ - } - ret = 0; /* OK, found it */ - break; - } - } - - /* Re-check generation number to ensure the data we have is - consistent. */ - recheck: - addr = dyn_list_addr; - if (fetchw (as, a, &addr, &gen2, arg) < 0) - return ret; - } - while (gen1 != gen2); - *genp = gen1; - - if (ret < 0 && di) - free (di); - - return ret; -} - -HIDDEN void -unwi_dyn_remote_put_unwind_info (unw_addr_space_t as, unw_proc_info_t *pi, - void *arg) -{ - if (!pi->unwind_info) - return; - - free_dyn_info (pi->unwind_info); - free (pi->unwind_info); - pi->unwind_info = NULL; -}