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130 lines
4.4 KiB
130 lines
4.4 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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#ifndef _DWARF_AUX_H |
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#define _DWARF_AUX_H |
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/* |
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* dwarf-aux.h : libdw auxiliary interfaces |
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*/ |
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#include <dwarf.h> |
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#include <elfutils/libdw.h> |
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#include <elfutils/libdwfl.h> |
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#include <elfutils/version.h> |
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struct strbuf; |
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/* Find the realpath of the target file */ |
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const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname); |
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/* Get DW_AT_comp_dir (should be NULL with older gcc) */ |
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const char *cu_get_comp_dir(Dwarf_Die *cu_die); |
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/* Get a line number and file name for given address */ |
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int cu_find_lineinfo(Dwarf_Die *cudie, Dwarf_Addr addr, |
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const char **fname, int *lineno); |
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/* Walk on functions at given address */ |
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int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr, |
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int (*callback)(Dwarf_Die *, void *), void *data); |
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/* Get DW_AT_linkage_name (should be NULL for C binary) */ |
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const char *die_get_linkage_name(Dwarf_Die *dw_die); |
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/* Get the lowest PC in DIE (including range list) */ |
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int die_entrypc(Dwarf_Die *dw_die, Dwarf_Addr *addr); |
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/* Ensure that this DIE is a subprogram and definition (not declaration) */ |
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bool die_is_func_def(Dwarf_Die *dw_die); |
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/* Ensure that this DIE is an instance of a subprogram */ |
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bool die_is_func_instance(Dwarf_Die *dw_die); |
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/* Compare diename and tname */ |
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bool die_compare_name(Dwarf_Die *dw_die, const char *tname); |
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/* Matching diename with glob pattern */ |
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bool die_match_name(Dwarf_Die *dw_die, const char *glob); |
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/* Get callsite line number of inline-function instance */ |
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int die_get_call_lineno(Dwarf_Die *in_die); |
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/* Get callsite file name of inlined function instance */ |
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const char *die_get_call_file(Dwarf_Die *in_die); |
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/* Get type die */ |
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Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); |
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/* Get a type die, but skip qualifiers and typedef */ |
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Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); |
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/* Check whether the DIE is signed or not */ |
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bool die_is_signed_type(Dwarf_Die *tp_die); |
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/* Get data_member_location offset */ |
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int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs); |
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/* Return values for die_find_child() callbacks */ |
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enum { |
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DIE_FIND_CB_END = 0, /* End of Search */ |
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DIE_FIND_CB_CHILD = 1, /* Search only children */ |
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DIE_FIND_CB_SIBLING = 2, /* Search only siblings */ |
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DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */ |
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}; |
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/* Search child DIEs */ |
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Dwarf_Die *die_find_child(Dwarf_Die *rt_die, |
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int (*callback)(Dwarf_Die *, void *), |
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void *data, Dwarf_Die *die_mem); |
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/* Search a non-inlined function including given address */ |
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Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr, |
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Dwarf_Die *die_mem); |
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/* Search a non-inlined function with tail call at given address */ |
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Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr, |
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Dwarf_Die *die_mem); |
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/* Search the top inlined function including given address */ |
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Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, |
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Dwarf_Die *die_mem); |
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/* Search the deepest inlined function including given address */ |
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Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, |
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Dwarf_Die *die_mem); |
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/* Walk on the instances of given DIE */ |
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int die_walk_instances(Dwarf_Die *in_die, |
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int (*callback)(Dwarf_Die *, void *), void *data); |
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/* Walker on lines (Note: line number will not be sorted) */ |
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typedef int (* line_walk_callback_t) (const char *fname, int lineno, |
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Dwarf_Addr addr, void *data); |
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/* |
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* Walk on lines inside given DIE. If the DIE is a subprogram, walk only on |
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* the lines inside the subprogram, otherwise the DIE must be a CU DIE. |
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*/ |
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int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data); |
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/* Find a variable called 'name' at given address */ |
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Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name, |
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Dwarf_Addr addr, Dwarf_Die *die_mem); |
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/* Find a member called 'name' */ |
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Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name, |
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Dwarf_Die *die_mem); |
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/* Get the name of given variable DIE */ |
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int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf); |
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/* Get the name and type of given variable DIE, stored as "type\tname" */ |
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int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf); |
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int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf); |
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/* Check if target program is compiled with optimization */ |
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bool die_is_optimized_target(Dwarf_Die *cu_die); |
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/* Use next address after prologue as probe location */ |
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void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die, |
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Dwarf_Addr *entrypc); |
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#endif
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