Lines Matching +full:non +full:- +full:pc
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * dwarf-aux.c : libdw auxiliary interfaces
11 #include "dwarf-aux.h"
12 #include "dwarf-regs.h"
17 * cu_find_realpath - Find the realpath of the target file
48 * cu_get_comp_dir - Get the path of compilation directory
77 l = 0; u = nlines - 1; in cu_getsrc_die()
79 n = u - (u - l) / 2; in cu_getsrc_die()
84 u = n - 1; in cu_getsrc_die()
90 line = dwarf_onesrcline(lines, --l); in cu_getsrc_die()
109 * cu_find_lineinfo - Get a line number and file name for given address
141 return (*lineno && *fname) ? *lineno : -ENOENT; in cu_find_lineinfo()
147 * cu_walk_functions_at - Walk on function DIEs at given address
154 * should be subprogram or inlined-subroutines.
161 int ret = -ENOENT; in cu_walk_functions_at()
178 * die_get_linkage_name - Get the linkage name of the object
194 * die_compare_name - Compare diename and tname
209 * die_match_name - Match diename/linkage name and glob
232 * die_get_call_lineno - Get callsite line number of inline-function instance
235 * Get call-site line number of @in_die. This means from where the inline
244 return -ENOENT; in die_get_call_lineno()
251 * die_get_type - Get type DIE
288 * die_get_real_type - Get a type die, but skip qualifiers and typedef
314 return -ENOENT; in die_get_attr_udata()
320 * die_is_signed_type - Check whether a type DIE is signed or not
338 * die_is_func_def - Ensure that this DIE is a subprogram and definition
369 * die_entrypc - Returns entry PC (the lowest address) of a DIE
371 * @addr: where to store entry PC
373 * Since dwarf_entrypc() does not return entry PC if the DIE has only address
383 return -EINVAL; in die_entrypc()
393 return -ENOENT; in die_entrypc()
395 return dwarf_ranges(dw_die, 0, &base, addr, &end) < 0 ? -ENOENT : 0; in die_entrypc()
399 * die_is_func_instance - Ensure that this DIE is an instance of a subprogram
422 * die_get_data_member_location - Get the data-member offset
437 return -ENOENT; in die_get_data_member_location()
443 return -ENOENT; in die_get_data_member_location()
448 return -ENOTSUP; in die_get_data_member_location()
463 return -ENOENT; in die_get_call_fileno()
474 return -ENOENT; in die_get_decl_fileno()
493 * die_get_call_file - Get callsite file name of inlined function instance
496 * Get call-site file name of @in_die. This means from which file the inline
505 * die_get_decl_file - Find the declared file name of this DIE
519 * die_find_child - Generic DIE search function in DIE tree
572 addr == ad->addr) { in __die_search_func_tail_cb()
573 memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die)); in __die_search_func_tail_cb()
580 * die_find_tailfunc - Search for a non-inlined function with tail call at
586 * Search for a non-inlined function DIE with tail call at @addr. Stores the
602 /* die_find callback for non-inlined function search */
608 * Since a declaration entry doesn't has given pc, this always returns in __die_search_func_cb()
612 dwarf_haspc(fn_die, ad->addr)) { in __die_search_func_cb()
613 memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die)); in __die_search_func_cb()
620 * die_find_realfunc - Search a non-inlined function at given address
625 * Search a non-inlined function DIE which includes @addr. Stores the
654 * die_find_top_inlinefunc - Search the top inlined function at given address
671 * die_find_inlinefunc - Search an inlined function at given address
715 * die_find_func_rettype - Search a return type of function
720 * Search a non-inlined function which matches to @name and stores the
767 if (origin == NULL || origin->addr != iwp->addr) in __die_walk_instances_cb()
780 iwp->retval = iwp->callback(inst, iwp->data); in __die_walk_instances_cb()
782 return (iwp->retval) ? DIE_FIND_CB_END : DIE_FIND_CB_CONTINUE; in __die_walk_instances_cb()
786 * die_walk_instances - Walk on instances of given DIE
793 * non-zero value, or -ENOENT if there is no instance.
801 .addr = or_die->addr, in die_walk_instances()
804 .retval = -ENOENT, in die_walk_instances()
808 return -ENOENT; in die_walk_instances()
834 lw->retval = lw->callback(fname, lineno, addr, lw->data); in __die_walk_funclines_cb()
835 if (lw->retval != 0) in __die_walk_funclines_cb()
838 if (!lw->recursive) in __die_walk_funclines_cb()
845 lw->retval = lw->callback(fname, lineno, addr, lw->data); in __die_walk_funclines_cb()
846 if (lw->retval != 0) in __die_walk_funclines_cb()
851 /* Continue to search nested inlined function call-sites */ in __die_walk_funclines_cb()
891 lw->retval = __die_walk_funclines(sp_die, true, lw->callback, lw->data); in __die_walk_culines_cb()
892 if (lw->retval != 0) in __die_walk_culines_cb()
899 * die_walk_lines - Walk on lines inside given DIE
908 * and inline call-site.
930 return -EINVAL; in die_walk_lines()
936 return -EINVAL; in die_walk_lines()
942 return -ENOENT; in die_walk_lines()
956 /* Skip end-of-sequence */ in die_walk_lines()
959 /* Skip Non statement line-info */ in die_walk_lines()
973 /* Call-site check */ in die_walk_lines()
1032 die_compare_name(die_mem, fvp->name) && in __die_find_variable_cb()
1041 if (dwarf_haspc(die_mem, fvp->addr)) in __die_find_variable_cb()
1048 * die_find_variable_at - Find a given name variable at given address
1083 * die_find_member - Find a given name member in a data structure
1098 * die_get_typename_from_type - Get the name of given type DIE
1103 * and Return -ENOENT if failed to find type name.
1130 return -ENOENT; in die_get_typename_from_type()
1137 if (tag == DW_TAG_pointer_type && ret == -ENOENT) in die_get_typename_from_type()
1146 * die_get_typename - Get the name of given variable DIE
1151 * and Return -ENOENT if failed to find type name.
1160 return -ENOENT; in die_get_typename()
1166 * die_get_varname - Get the name and type of given variable DIE
1187 switch (op->atom) { in reg_from_dwarf_op()
1189 return op->atom - DW_OP_reg0; in reg_from_dwarf_op()
1191 return op->atom - DW_OP_breg0; in reg_from_dwarf_op()
1194 return op->number; in reg_from_dwarf_op()
1200 return -1; in reg_from_dwarf_op()
1205 switch (op->atom) { in offset_from_dwarf_op()
1211 return op->number; in offset_from_dwarf_op()
1213 return op->number2; in offset_from_dwarf_op()
1217 return -1; in offset_from_dwarf_op()
1224 nops--; in check_allowed_ops()
1233 switch (ops->atom) { in check_allowed_ops()
1243 nops--; in check_allowed_ops()
1249 * die_get_var_innermost_scope - Get innermost scope range of given variable DIE
1255 * "@<function_name+[NN-NN,NN-NN]>".
1276 return -ENOENT; in die_get_var_innermost_scope()
1282 ret = -EINVAL; in die_get_var_innermost_scope()
1288 start -= entry; in die_get_var_innermost_scope()
1289 end -= entry; in die_get_var_innermost_scope()
1292 ret = strbuf_addf(buf, "@<%s+[%" PRIu64 "-%" PRIu64, in die_get_var_innermost_scope()
1296 ret = strbuf_addf(buf, ",%" PRIu64 "-%" PRIu64, in die_get_var_innermost_scope()
1312 * die_get_var_range - Get byte offset range of given variable DIE
1318 * "@<function_name+[NN-NN,NN-NN]>".
1339 return -ENOENT; in die_get_var_range()
1342 return -EINVAL; in die_get_var_range()
1353 start -= entry; in die_get_var_range()
1354 end -= entry; in die_get_var_range()
1356 ret = strbuf_addf(buf, "@<%s+[%" PRIu64 "-%" PRIu64, in die_get_var_range()
1360 ret = strbuf_addf(buf, ",%" PRIu64 "-%" PRIu64, in die_get_var_range()
1376 Dwarf_Addr pc; member
1395 s64 offset = addr_offset - addr_type; in match_var_offset()
1399 data->offset = 0; in match_var_offset()
1422 data->offset = offset; in match_var_offset()
1427 * is_breg_access_indirect - Check if breg based access implies type
1473 if (end <= data->pc) in __die_find_var_reg_cb()
1475 if (start > data->pc) in __die_find_var_reg_cb()
1479 if (data->is_fbreg && ops->atom == DW_OP_fbreg && in __die_find_var_reg_cb()
1481 match_var_offset(die_mem, data, data->offset, ops->number, in __die_find_var_reg_cb()
1486 if (data->reg < DWARF_OP_DIRECT_REGS) { in __die_find_var_reg_cb()
1488 if (ops->atom == (DW_OP_reg0 + data->reg) && in __die_find_var_reg_cb()
1490 match_var_offset(die_mem, data, data->offset, 0, in __die_find_var_reg_cb()
1495 if (ops->atom == (DW_OP_breg0 + data->reg) && in __die_find_var_reg_cb()
1497 match_var_offset(die_mem, data, data->offset, ops->number, in __die_find_var_reg_cb()
1502 if (ops->atom == DW_OP_regx && ops->number == data->reg && in __die_find_var_reg_cb()
1504 match_var_offset(die_mem, data, data->offset, 0, in __die_find_var_reg_cb()
1509 if (ops->atom == DW_OP_bregx && data->reg == ops->number && in __die_find_var_reg_cb()
1511 match_var_offset(die_mem, data, data->offset, ops->number2, in __die_find_var_reg_cb()
1520 * die_find_variable_by_reg - Find a variable saved in a register
1522 * @pc: the program address to find
1531 Dwarf_Die *die_find_variable_by_reg(Dwarf_Die *sc_die, Dwarf_Addr pc, int reg, in die_find_variable_by_reg() argument
1536 .pc = pc, in die_find_variable_by_reg()
1567 if (ops->atom != DW_OP_addr) in __die_find_var_addr_cb()
1571 match_var_offset(die_mem, data, data->addr, ops->number, in __die_find_var_addr_cb()
1579 * die_find_variable_by_addr - Find variable located at given address
1585 * Find the variable DIE located at the given address (in PC-relative mode).
1638 vt->is_reg_var_addr = false; in __die_collect_vars_cb()
1640 if (((ops->atom >= DW_OP_breg0 && ops->atom <= DW_OP_breg31) || in __die_collect_vars_cb()
1641 ops->atom == DW_OP_bregx || ops->atom == DW_OP_fbreg) && in __die_collect_vars_cb()
1644 vt->is_reg_var_addr = true; in __die_collect_vars_cb()
1646 vt->die_off = dwarf_dieoffset(&type_die); in __die_collect_vars_cb()
1647 vt->addr = start; in __die_collect_vars_cb()
1648 vt->reg = reg_from_dwarf_op(ops); in __die_collect_vars_cb()
1649 vt->offset = offset_from_dwarf_op(ops); in __die_collect_vars_cb()
1650 vt->next = *var_types; in __die_collect_vars_cb()
1657 * die_collect_vars - Save all variables and parameters
1662 * The @var_types is a singly-linked list containing type and location info.
1695 if (ops->atom != DW_OP_addr) in __die_collect_global_vars_cb()
1708 vt->die_off = dwarf_dieoffset(&type_die); in __die_collect_global_vars_cb()
1709 vt->addr = ops->number; in __die_collect_global_vars_cb()
1710 vt->reg = -1; in __die_collect_global_vars_cb()
1711 vt->offset = 0; in __die_collect_global_vars_cb()
1712 vt->next = *var_types; in __die_collect_global_vars_cb()
1719 * die_collect_global_vars - Save all global variables
1724 * The @var_types is a singly-linked list containing type and location info.
1737 * die_get_cfa - Get frame base information
1739 * @pc: program address
1748 int die_get_cfa(Dwarf *dwarf, u64 pc, int *preg, int *poffset) in die_get_cfa() argument
1757 return -1; in die_get_cfa()
1759 if (!dwarf_cfi_addrframe(cfi, pc, &frame) && in die_get_cfa()
1766 return -1; in die_get_cfa()
1770 * die_has_loclist - Check if DW_AT_location of @vr_die is a location list
1787 * die_is_optimized_target - Check if target program is compiled with
1814 * die_search_idx - Search index of given line address
1844 * die_get_postprologue_addr - Search next address after function prologue
1848 * @hignpc: high PC address of function
1851 * Look for prologue-end marker. If there is no explicit marker, return
1883 /* clang supports prologue-end marker */ in die_get_postprologue_addr()
1905 dwarf_lineaddr(dwarf_onesrcline(lines, i - 1), in die_get_postprologue_addr()
1912 * die_skip_prologue - Use next address after prologue as probe location
1951 Dwarf_Addr pc; member
1963 if (dwarf_haspc(die_mem, data->pc)) { in __die_find_scope_cb()
1966 tmp = realloc(data->scopes, (data->nr + 1) * sizeof(*tmp)); in __die_find_scope_cb()
1970 memcpy(tmp + data->nr, die_mem, sizeof(*die_mem)); in __die_find_scope_cb()
1971 data->scopes = tmp; in __die_find_scope_cb()
1972 data->nr++; in __die_find_scope_cb()
1977 * If the DIE doesn't have the PC, we still need to check its children in __die_find_scope_cb()
1987 * die_get_scopes - Return a list of scopes including the address
1989 * @pc: the address to find
1995 * the last one is the innermost scope at the @pc.
1997 int die_get_scopes(Dwarf_Die *cu_die, Dwarf_Addr pc, Dwarf_Die **scopes) in die_get_scopes() argument
2000 .pc = pc, in die_get_scopes()
2049 * die_get_member_type - Return type info of struct member
2099 offset -= loc; in die_get_member_type()
2107 * die_deref_ptr_type - Return type info for pointer access