#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "filenames.h"
#include "backtrace.h"
#include "internal.h"

Include dependency graph for dwarf.c:

Go to the source code of this file.

Data Structures
struct	abbrev

struct	abbrevs

struct	attr

struct	attr_val

union	attr_val.u

struct	dwarf_buf

struct	dwarf_data

struct	function

struct	function_addrs

struct	function_vector

struct	line

struct	line_header

struct	line_header_format

struct	line_vector

struct	pcrange

struct	unit

struct	unit_addrs

struct	unit_addrs_vector

struct	unit_vector

Macros
#define	strnlen xstrnlen

Enumerations
enum	attr_val_encoding { ATTR_VAL_NONE , ATTR_VAL_ADDRESS , ATTR_VAL_ADDRESS_INDEX , ATTR_VAL_UINT , ATTR_VAL_SINT , ATTR_VAL_STRING , ATTR_VAL_STRING_INDEX , ATTR_VAL_REF_UNIT , ATTR_VAL_REF_INFO , ATTR_VAL_REF_ALT_INFO , ATTR_VAL_REF_SECTION , ATTR_VAL_REF_TYPE , ATTR_VAL_RNGLISTS_INDEX , ATTR_VAL_BLOCK , ATTR_VAL_EXPR }

enum	dwarf_attribute { DW_AT_sibling = 0x01 , DW_AT_location = 0x02 , DW_AT_name = 0x03 , DW_AT_ordering = 0x09 , DW_AT_subscr_data = 0x0a , DW_AT_byte_size = 0x0b , DW_AT_bit_offset = 0x0c , DW_AT_bit_size = 0x0d , DW_AT_element_list = 0x0f , DW_AT_stmt_list = 0x10 , DW_AT_low_pc = 0x11 , DW_AT_high_pc = 0x12 , DW_AT_language = 0x13 , DW_AT_member = 0x14 , DW_AT_discr = 0x15 , DW_AT_discr_value = 0x16 , DW_AT_visibility = 0x17 , DW_AT_import = 0x18 , DW_AT_string_length = 0x19 , DW_AT_common_reference = 0x1a , DW_AT_comp_dir = 0x1b , DW_AT_const_value = 0x1c , DW_AT_containing_type = 0x1d , DW_AT_default_value = 0x1e , DW_AT_inline = 0x20 , DW_AT_is_optional = 0x21 , DW_AT_lower_bound = 0x22 , DW_AT_producer = 0x25 , DW_AT_prototyped = 0x27 , DW_AT_return_addr = 0x2a , DW_AT_start_scope = 0x2c , DW_AT_bit_stride = 0x2e , DW_AT_upper_bound = 0x2f , DW_AT_abstract_origin = 0x31 , DW_AT_accessibility = 0x32 , DW_AT_address_class = 0x33 , DW_AT_artificial = 0x34 , DW_AT_base_types = 0x35 , DW_AT_calling_convention = 0x36 , DW_AT_count = 0x37 , DW_AT_data_member_location = 0x38 , DW_AT_decl_column = 0x39 , DW_AT_decl_file = 0x3a , DW_AT_decl_line = 0x3b , DW_AT_declaration = 0x3c , DW_AT_discr_list = 0x3d , DW_AT_encoding = 0x3e , DW_AT_external = 0x3f , DW_AT_frame_base = 0x40 , DW_AT_friend = 0x41 , DW_AT_identifier_case = 0x42 , DW_AT_macro_info = 0x43 , DW_AT_namelist_items = 0x44 , DW_AT_priority = 0x45 , DW_AT_segment = 0x46 , DW_AT_specification = 0x47 , DW_AT_static_link = 0x48 , DW_AT_type = 0x49 , DW_AT_use_location = 0x4a , DW_AT_variable_parameter = 0x4b , DW_AT_virtuality = 0x4c , DW_AT_vtable_elem_location = 0x4d , DW_AT_allocated = 0x4e , DW_AT_associated = 0x4f , DW_AT_data_location = 0x50 , DW_AT_byte_stride = 0x51 , DW_AT_entry_pc = 0x52 , DW_AT_use_UTF8 = 0x53 , DW_AT_extension = 0x54 , DW_AT_ranges = 0x55 , DW_AT_trampoline = 0x56 , DW_AT_call_column = 0x57 , DW_AT_call_file = 0x58 , DW_AT_call_line = 0x59 , DW_AT_description = 0x5a , DW_AT_binary_scale = 0x5b , DW_AT_decimal_scale = 0x5c , DW_AT_small = 0x5d , DW_AT_decimal_sign = 0x5e , DW_AT_digit_count = 0x5f , DW_AT_picture_string = 0x60 , DW_AT_mutable = 0x61 , DW_AT_threads_scaled = 0x62 , DW_AT_explicit = 0x63 , DW_AT_object_pointer = 0x64 , DW_AT_endianity = 0x65 , DW_AT_elemental = 0x66 , DW_AT_pure = 0x67 , DW_AT_recursive = 0x68 , DW_AT_signature = 0x69 , DW_AT_main_subprogram = 0x6a , DW_AT_data_bit_offset = 0x6b , DW_AT_const_expr = 0x6c , DW_AT_enum_class = 0x6d , DW_AT_linkage_name = 0x6e , DW_AT_string_length_bit_size = 0x6f , DW_AT_string_length_byte_size = 0x70 , DW_AT_rank = 0x71 , DW_AT_str_offsets_base = 0x72 , DW_AT_addr_base = 0x73 , DW_AT_rnglists_base = 0x74 , DW_AT_dwo_name = 0x76 , DW_AT_reference = 0x77 , DW_AT_rvalue_reference = 0x78 , DW_AT_macros = 0x79 , DW_AT_call_all_calls = 0x7a , DW_AT_call_all_source_calls = 0x7b , DW_AT_call_all_tail_calls = 0x7c , DW_AT_call_return_pc = 0x7d , DW_AT_call_value = 0x7e , DW_AT_call_origin = 0x7f , DW_AT_call_parameter = 0x80 , DW_AT_call_pc = 0x81 , DW_AT_call_tail_call = 0x82 , DW_AT_call_target = 0x83 , DW_AT_call_target_clobbered = 0x84 , DW_AT_call_data_location = 0x85 , DW_AT_call_data_value = 0x86 , DW_AT_noreturn = 0x87 , DW_AT_alignment = 0x88 , DW_AT_export_symbols = 0x89 , DW_AT_deleted = 0x8a , DW_AT_defaulted = 0x8b , DW_AT_loclists_base = 0x8c , DW_AT_lo_user = 0x2000 , DW_AT_hi_user = 0x3fff , DW_AT_MIPS_fde = 0x2001 , DW_AT_MIPS_loop_begin = 0x2002 , DW_AT_MIPS_tail_loop_begin = 0x2003 , DW_AT_MIPS_epilog_begin = 0x2004 , DW_AT_MIPS_loop_unroll_factor = 0x2005 , DW_AT_MIPS_software_pipeline_depth = 0x2006 , DW_AT_MIPS_linkage_name = 0x2007 , DW_AT_MIPS_stride = 0x2008 , DW_AT_MIPS_abstract_name = 0x2009 , DW_AT_MIPS_clone_origin = 0x200a , DW_AT_MIPS_has_inlines = 0x200b , DW_AT_HP_block_index = 0x2000 , DW_AT_HP_unmodifiable = 0x2001 , DW_AT_HP_prologue = 0x2005 , DW_AT_HP_epilogue = 0x2008 , DW_AT_HP_actuals_stmt_list = 0x2010 , DW_AT_HP_proc_per_section = 0x2011 , DW_AT_HP_raw_data_ptr = 0x2012 , DW_AT_HP_pass_by_reference = 0x2013 , DW_AT_HP_opt_level = 0x2014 , DW_AT_HP_prof_version_id = 0x2015 , DW_AT_HP_opt_flags = 0x2016 , DW_AT_HP_cold_region_low_pc = 0x2017 , DW_AT_HP_cold_region_high_pc = 0x2018 , DW_AT_HP_all_variables_modifiable = 0x2019 , DW_AT_HP_linkage_name = 0x201a , DW_AT_HP_prof_flags = 0x201b , DW_AT_HP_unit_name = 0x201f , DW_AT_HP_unit_size = 0x2020 , DW_AT_HP_widened_byte_size = 0x2021 , DW_AT_HP_definition_points = 0x2022 , DW_AT_HP_default_location = 0x2023 , DW_AT_HP_is_result_param = 0x2029 , DW_AT_sf_names = 0x2101 , DW_AT_src_info = 0x2102 , DW_AT_mac_info = 0x2103 , DW_AT_src_coords = 0x2104 , DW_AT_body_begin = 0x2105 , DW_AT_body_end = 0x2106 , DW_AT_GNU_vector = 0x2107 , DW_AT_GNU_guarded_by = 0x2108 , DW_AT_GNU_pt_guarded_by = 0x2109 , DW_AT_GNU_guarded = 0x210a , DW_AT_GNU_pt_guarded = 0x210b , DW_AT_GNU_locks_excluded = 0x210c , DW_AT_GNU_exclusive_locks_required = 0x210d , DW_AT_GNU_shared_locks_required = 0x210e , DW_AT_GNU_odr_signature = 0x210f , DW_AT_GNU_template_name = 0x2110 , DW_AT_GNU_call_site_value = 0x2111 , DW_AT_GNU_call_site_data_value = 0x2112 , DW_AT_GNU_call_site_target = 0x2113 , DW_AT_GNU_call_site_target_clobbered = 0x2114 , DW_AT_GNU_tail_call = 0x2115 , DW_AT_GNU_all_tail_call_sites = 0x2116 , DW_AT_GNU_all_call_sites = 0x2117 , DW_AT_GNU_all_source_call_sites = 0x2118 , DW_AT_GNU_macros = 0x2119 , DW_AT_GNU_deleted = 0x211a , DW_AT_GNU_dwo_name = 0x2130 , DW_AT_GNU_dwo_id = 0x2131 , DW_AT_GNU_ranges_base = 0x2132 , DW_AT_GNU_addr_base = 0x2133 , DW_AT_GNU_pubnames = 0x2134 , DW_AT_GNU_pubtypes = 0x2135 , DW_AT_GNU_discriminator = 0x2136 , DW_AT_GNU_locviews = 0x2137 , DW_AT_GNU_entry_view = 0x2138 , DW_AT_VMS_rtnbeg_pd_address = 0x2201 , DW_AT_use_GNAT_descriptive_type = 0x2301 , DW_AT_GNAT_descriptive_type = 0x2302 , DW_AT_GNU_numerator = 0x2303 , DW_AT_GNU_denominator = 0x2304 , DW_AT_GNU_bias = 0x2305 , DW_AT_upc_threads_scaled = 0x3210 , DW_AT_PGI_lbase = 0x3a00 , DW_AT_PGI_soffset = 0x3a01 , DW_AT_PGI_lstride = 0x3a02 , DW_AT_APPLE_optimized = 0x3fe1 , DW_AT_APPLE_flags = 0x3fe2 , DW_AT_APPLE_isa = 0x3fe3 , DW_AT_APPLE_block = 0x3fe4 , DW_AT_APPLE_major_runtime_vers = 0x3fe5 , DW_AT_APPLE_runtime_class = 0x3fe6 , DW_AT_APPLE_omit_frame_ptr = 0x3fe7 , DW_AT_APPLE_property_name = 0x3fe8 , DW_AT_APPLE_property_getter = 0x3fe9 , DW_AT_APPLE_property_setter = 0x3fea , DW_AT_APPLE_property_attribute = 0x3feb , DW_AT_APPLE_objc_complete_type = 0x3fec , DW_AT_APPLE_property = 0x3fed }

enum	dwarf_extended_line_number_op { DW_LNE_end_sequence = 0x1 , DW_LNE_set_address = 0x2 , DW_LNE_define_file = 0x3 , DW_LNE_set_discriminator = 0x4 }

enum	dwarf_form { DW_FORM_addr = 0x01 , DW_FORM_block2 = 0x03 , DW_FORM_block4 = 0x04 , DW_FORM_data2 = 0x05 , DW_FORM_data4 = 0x06 , DW_FORM_data8 = 0x07 , DW_FORM_string = 0x08 , DW_FORM_block = 0x09 , DW_FORM_block1 = 0x0a , DW_FORM_data1 = 0x0b , DW_FORM_flag = 0x0c , DW_FORM_sdata = 0x0d , DW_FORM_strp = 0x0e , DW_FORM_udata = 0x0f , DW_FORM_ref_addr = 0x10 , DW_FORM_ref1 = 0x11 , DW_FORM_ref2 = 0x12 , DW_FORM_ref4 = 0x13 , DW_FORM_ref8 = 0x14 , DW_FORM_ref_udata = 0x15 , DW_FORM_indirect = 0x16 , DW_FORM_sec_offset = 0x17 , DW_FORM_exprloc = 0x18 , DW_FORM_flag_present = 0x19 , DW_FORM_ref_sig8 = 0x20 , DW_FORM_strx = 0x1a , DW_FORM_addrx = 0x1b , DW_FORM_ref_sup4 = 0x1c , DW_FORM_strp_sup = 0x1d , DW_FORM_data16 = 0x1e , DW_FORM_line_strp = 0x1f , DW_FORM_implicit_const = 0x21 , DW_FORM_loclistx = 0x22 , DW_FORM_rnglistx = 0x23 , DW_FORM_ref_sup8 = 0x24 , DW_FORM_strx1 = 0x25 , DW_FORM_strx2 = 0x26 , DW_FORM_strx3 = 0x27 , DW_FORM_strx4 = 0x28 , DW_FORM_addrx1 = 0x29 , DW_FORM_addrx2 = 0x2a , DW_FORM_addrx3 = 0x2b , DW_FORM_addrx4 = 0x2c , DW_FORM_GNU_addr_index = 0x1f01 , DW_FORM_GNU_str_index = 0x1f02 , DW_FORM_GNU_ref_alt = 0x1f20 , DW_FORM_GNU_strp_alt = 0x1f21 }

enum	dwarf_line_number_content_type { DW_LNCT_path = 0x1 , DW_LNCT_directory_index = 0x2 , DW_LNCT_timestamp = 0x3 , DW_LNCT_size = 0x4 , DW_LNCT_MD5 = 0x5 , DW_LNCT_lo_user = 0x2000 , DW_LNCT_hi_user = 0x3fff }

enum	dwarf_line_number_op { DW_LNS_extended_op = 0x0 , DW_LNS_copy = 0x1 , DW_LNS_advance_pc = 0x2 , DW_LNS_advance_line = 0x3 , DW_LNS_set_file = 0x4 , DW_LNS_set_column = 0x5 , DW_LNS_negate_stmt = 0x6 , DW_LNS_set_basic_block = 0x7 , DW_LNS_const_add_pc = 0x8 , DW_LNS_fixed_advance_pc = 0x9 , DW_LNS_set_prologue_end = 0xa , DW_LNS_set_epilogue_begin = 0xb , DW_LNS_set_isa = 0xc }

enum	dwarf_range_list_entry { DW_RLE_end_of_list = 0x00 , DW_RLE_base_addressx = 0x01 , DW_RLE_startx_endx = 0x02 , DW_RLE_startx_length = 0x03 , DW_RLE_offset_pair = 0x04 , DW_RLE_base_address = 0x05 , DW_RLE_start_end = 0x06 , DW_RLE_start_length = 0x07 }

enum	dwarf_tag { DW_TAG_entry_point = 0x3 , DW_TAG_compile_unit = 0x11 , DW_TAG_inlined_subroutine = 0x1d , DW_TAG_subprogram = 0x2e , DW_TAG_skeleton_unit = 0x4a }

enum	dwarf_unit_type { DW_UT_compile = 0x01 , DW_UT_type = 0x02 , DW_UT_partial = 0x03 , DW_UT_skeleton = 0x04 , DW_UT_split_compile = 0x05 , DW_UT_split_type = 0x06 , DW_UT_lo_user = 0x80 , DW_UT_hi_user = 0xff }

Functions
static int	abbrev_compare (const void v1, const void v2)

static int	add_function_range (struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void pvec)

static int	add_line (struct backtrace_state state, struct dwarf_data ddata, uintptr_t pc, const char filename, int lineno, backtrace_error_callback error_callback, void data, struct line_vector *vec)

static int	add_low_high_range (struct backtrace_state state, const struct dwarf_sections dwarf_sections, struct libbacktrace_base_address base_address, int is_bigendian, struct unit u, const struct pcrange pcrange, int(add_range)(struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void vec), void rdata, backtrace_error_callback error_callback, void data, void vec)

static int	add_ranges (struct backtrace_state state, const struct dwarf_sections dwarf_sections, struct libbacktrace_base_address base_address, int is_bigendian, struct unit u, uintptr_t base, const struct pcrange pcrange, int(add_range)(struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void vec), void rdata, backtrace_error_callback error_callback, void data, void vec)

static int	add_ranges_from_ranges (struct backtrace_state state, const struct dwarf_sections dwarf_sections, struct libbacktrace_base_address base_address, int is_bigendian, struct unit u, uintptr_t base, const struct pcrange pcrange, int(add_range)(struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void vec), void rdata, backtrace_error_callback error_callback, void data, void vec)

static int	add_ranges_from_rnglists (struct backtrace_state state, const struct dwarf_sections dwarf_sections, struct libbacktrace_base_address base_address, int is_bigendian, struct unit u, uintptr_t base, const struct pcrange pcrange, int(add_range)(struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void vec), void rdata, backtrace_error_callback error_callback, void data, void vec)

static int	add_unit_addr (struct backtrace_state state, void rdata, uintptr_t lowpc, uintptr_t highpc, backtrace_error_callback error_callback, void data, void pvec)

static int	advance (struct dwarf_buf *buf, size_t count)

int	backtrace_dwarf_add (struct backtrace_state state, struct libbacktrace_base_address base_address, const struct dwarf_sections dwarf_sections, int is_bigendian, struct dwarf_data fileline_altlink, backtrace_error_callback error_callback, void data, fileline fileline_fn, struct dwarf_data *fileline_entry)

static int	build_address_map (struct backtrace_state state, struct libbacktrace_base_address base_address, const struct dwarf_sections dwarf_sections, int is_bigendian, struct dwarf_data altlink, backtrace_error_callback error_callback, void data, struct unit_addrs_vector addrs, struct unit_vector unit_vec)

static struct dwarf_data *	build_dwarf_data (struct backtrace_state state, struct libbacktrace_base_address base_address, const struct dwarf_sections dwarf_sections, int is_bigendian, struct dwarf_data altlink, backtrace_error_callback error_callback, void data)

static void	dwarf_buf_error (struct dwarf_buf buf, const char msg, int errnum)

static int	dwarf_fileline (struct backtrace_state state, uintptr_t pc, backtrace_full_callback callback, backtrace_error_callback error_callback, void data)

static int	dwarf_lookup_pc (struct backtrace_state state, struct dwarf_data ddata, uintptr_t pc, backtrace_full_callback callback, backtrace_error_callback error_callback, void data, int found)

static int	find_address_ranges (struct backtrace_state state, struct libbacktrace_base_address base_address, struct dwarf_buf unit_buf, const struct dwarf_sections dwarf_sections, int is_bigendian, struct dwarf_data altlink, backtrace_error_callback error_callback, void data, struct unit u, struct unit_addrs_vector addrs, enum dwarf_tag unit_tag)

static struct unit *	find_unit (struct unit **pu, size_t units_count, size_t offset)

static void	free_abbrevs (struct backtrace_state state, struct abbrevs abbrevs, backtrace_error_callback error_callback, void *data)

static void	free_line_header (struct backtrace_state state, struct line_header hdr, backtrace_error_callback error_callback, void *data)

static int	function_addrs_compare (const void v1, const void v2)

static int	function_addrs_search (const void vkey, const void ventry)

static int	is_highest_address (uint64_t address, int addrsize)

static size_t	leb128_len (const unsigned char *p)

static int	line_compare (const void v1, const void v2)

static int	line_search (const void vkey, const void ventry)

static const struct abbrev *	lookup_abbrev (struct abbrevs abbrevs, uint64_t code, backtrace_error_callback error_callback, void data)

static int	read_abbrevs (struct backtrace_state state, uint64_t abbrev_offset, const unsigned char dwarf_abbrev, size_t dwarf_abbrev_size, int is_bigendian, backtrace_error_callback error_callback, void data, struct abbrevs abbrevs)

static uint64_t	read_address (struct dwarf_buf *buf, int addrsize)

static int	read_attribute (enum dwarf_form form, uint64_t implicit_val, struct dwarf_buf buf, int is_dwarf64, int version, int addrsize, const struct dwarf_sections dwarf_sections, struct dwarf_data altlink, struct attr_val val)

static unsigned char	read_byte (struct dwarf_buf *buf)

static int	read_function_entry (struct backtrace_state state, struct dwarf_data ddata, struct unit u, uintptr_t base, struct dwarf_buf unit_buf, const struct line_header lhdr, backtrace_error_callback error_callback, void data, struct function_vector vec_function, struct function_vector vec_inlined)

static void	read_function_info (struct backtrace_state state, struct dwarf_data ddata, const struct line_header lhdr, backtrace_error_callback error_callback, void data, struct unit u, struct function_vector fvec, struct function_addrs *ret_addrs, size_t ret_addrs_count)

static uint64_t	read_initial_length (struct dwarf_buf buf, int is_dwarf64)

static int	read_line_header (struct backtrace_state state, struct dwarf_data ddata, struct unit u, int is_dwarf64, struct dwarf_buf line_buf, struct line_header *hdr)

static int	read_line_header_format_entries (struct backtrace_state state, struct dwarf_data ddata, struct unit u, struct dwarf_buf hdr_buf, struct line_header hdr, size_t pcount, const char ***ppaths)

static int	read_line_info (struct backtrace_state state, struct dwarf_data ddata, backtrace_error_callback error_callback, void data, struct unit u, struct line_header hdr, struct line lines, size_t lines_count)

static int	read_line_program (struct backtrace_state state, struct dwarf_data ddata, const struct line_header hdr, struct dwarf_buf line_buf, struct line_vector *vec)

static int	read_lnct (struct backtrace_state state, struct dwarf_data ddata, struct unit u, struct dwarf_buf hdr_buf, const struct line_header hdr, size_t formats_count, const struct line_header_format formats, const char **string)

static uint64_t	read_offset (struct dwarf_buf *buf, int is_dwarf64)

static const char *	read_referenced_name (struct dwarf_data , struct unit , uint64_t, backtrace_error_callback, void *)

static const char *	read_referenced_name_from_attr (struct dwarf_data ddata, struct unit u, struct attr attr, struct attr_val val, backtrace_error_callback error_callback, void *data)

static signed char	read_sbyte (struct dwarf_buf *buf)

static int64_t	read_sleb128 (struct dwarf_buf *buf)

static const char *	read_string (struct dwarf_buf *buf)

static uint16_t	read_uint16 (struct dwarf_buf *buf)

static uint32_t	read_uint24 (struct dwarf_buf *buf)

static uint32_t	read_uint32 (struct dwarf_buf *buf)

static uint64_t	read_uint64 (struct dwarf_buf *buf)

static uint64_t	read_uleb128 (struct dwarf_buf *buf)

static int	read_v2_paths (struct backtrace_state state, struct unit u, struct dwarf_buf hdr_buf, struct line_header hdr)

static int	report_inlined_functions (uintptr_t pc, struct function function, backtrace_full_callback callback, void data, const char *filename, int lineno)

static int	require (struct dwarf_buf *buf, size_t count)

static int	resolve_addr_index (const struct dwarf_sections dwarf_sections, uint64_t addr_base, int addrsize, int is_bigendian, uint64_t addr_index, backtrace_error_callback error_callback, void data, uintptr_t *address)

static int	resolve_string (const struct dwarf_sections dwarf_sections, int is_dwarf64, int is_bigendian, uint64_t str_offsets_base, const struct attr_val val, backtrace_error_callback error_callback, void data, const char *string)

static int	resolve_unit_addrs_overlap (struct backtrace_state state, backtrace_error_callback error_callback, void data, struct unit_addrs_vector *addrs_vec)

static int	resolve_unit_addrs_overlap_walk (struct backtrace_state state, size_t pfrom, size_t pto, struct unit_addrs enclosing, struct unit_addrs_vector old_vec, backtrace_error_callback error_callback, void data, struct unit_addrs_vector *new_vec)

static int	unit_addrs_compare (const void v1, const void v2)

static int	unit_addrs_search (const void vkey, const void ventry)

static int	units_search (const void vkey, const void ventry)

static void	update_pcrange (const struct attr attr, const struct attr_val val, struct pcrange *pcrange)

static size_t	xstrnlen (const char *s, size_t maxlen)

Data Structure Documentation

◆ abbrev

struct abbrev

Definition at line 435 of file dwarf.c.

Collaboration diagram for abbrev:

Data Fields
struct attr *	attrs
uint64_t	code
int	has_children
size_t	num_attrs
enum dwarf_tag	tag

◆ abbrevs

struct abbrevs

Definition at line 456 of file dwarf.c.

Collaboration diagram for abbrevs:

Data Fields
struct abbrev *	abbrevs
size_t	num_abbrevs

◆ attr

struct attr

Definition at line 423 of file dwarf.c.

Data Fields
enum dwarf_form	form
enum dwarf_attribute	name
int64_t	val

◆ attr_val

struct attr_val

Definition at line 503 of file dwarf.c.

Data Fields
enum attr_val_encoding	encoding
union attr_val.u	u

◆ attr_val.u

union attr_val.u

Definition at line 507 of file dwarf.c.

Data Fields
int64_t	sint
const char *	string
uint64_t	uint

◆ dwarf_buf

struct dwarf_buf

Definition at line 401 of file dwarf.c.

Data Fields
const unsigned char *	buf
void *	data
backtrace_error_callback	error_callback
int	is_bigendian
size_t	left
const char *	name
int	reported_underflow
const unsigned char *	start

◆ dwarf_data

struct dwarf_data

Definition at line 719 of file dwarf.c.

Collaboration diagram for dwarf_data:

Data Fields
struct unit_addrs *	addrs
size_t	addrs_count
struct dwarf_data *	altlink
struct libbacktrace_base_address	base_address
struct dwarf_sections	dwarf_sections
struct function_vector	fvec
int	is_bigendian
struct dwarf_data *	next
struct unit **	units
size_t	units_count

◆ function

struct function

Definition at line 590 of file dwarf.c.

Collaboration diagram for function:

Data Fields
const char *	caller_filename
int	caller_lineno
struct function_addrs *	function_addrs
size_t	function_addrs_count
const char *	name

◆ function_addrs

struct function_addrs

Definition at line 608 of file dwarf.c.

Collaboration diagram for function_addrs:

Data Fields
struct function *	function
uintptr_t	high
uintptr_t	low

◆ function_vector

struct function_vector

Definition at line 619 of file dwarf.c.

Collaboration diagram for function_vector:

Data Fields
size_t	count
struct backtrace_vector	vec

◆ line

struct line

Definition at line 562 of file dwarf.c.

Data Fields
const char *	filename
int	idx
int	lineno
uintptr_t	pc

◆ line_header

struct line_header

Definition at line 521 of file dwarf.c.

Data Fields
int	addrsize
const char **	dirs
size_t	dirs_count
const char **	filenames
size_t	filenames_count
int	line_base
unsigned int	line_range
unsigned int	max_ops_per_insn
unsigned int	min_insn_len
unsigned int	opcode_base
const unsigned char *	opcode_lengths
int	version

◆ line_header_format

struct line_header_format

Definition at line 551 of file dwarf.c.

Data Fields
enum dwarf_form	form
int	lnct

◆ line_vector

struct line_vector

Definition at line 580 of file dwarf.c.

Collaboration diagram for line_vector:

Data Fields
size_t	count
struct backtrace_vector	vec

◆ pcrange

struct pcrange

Definition at line 2054 of file dwarf.c.

Data Fields
int	have_highpc
int	have_lowpc
int	have_ranges
uintptr_t	highpc
int	highpc_is_addr_index
int	highpc_is_relative
uintptr_t	lowpc
int	lowpc_is_addr_index
uint64_t	ranges
int	ranges_is_index

◆ unit

struct unit

Definition at line 630 of file dwarf.c.

Collaboration diagram for unit:

Data Fields
struct abbrevs	abbrevs
const char *	abs_filename
uint64_t	addr_base
int	addrsize
const char *	comp_dir
const char *	filename
struct function_addrs *	function_addrs
size_t	function_addrs_count
size_t	high_offset
int	is_dwarf64
off_t	lineoff
struct line *	lines
size_t	lines_count
size_t	low_offset
uint64_t	rnglists_base
uint64_t	str_offsets_base
const unsigned char *	unit_data
size_t	unit_data_len
size_t	unit_data_offset
int	version

◆ unit_addrs

struct unit_addrs

Definition at line 690 of file dwarf.c.

Collaboration diagram for unit_addrs:

Data Fields
uintptr_t	high
uintptr_t	low
struct unit *	u

◆ unit_addrs_vector

struct unit_addrs_vector

Definition at line 701 of file dwarf.c.

Collaboration diagram for unit_addrs_vector:

Data Fields
size_t	count
struct backtrace_vector	vec

◆ unit_vector

struct unit_vector

Definition at line 711 of file dwarf.c.

Collaboration diagram for unit_vector:

Data Fields
size_t	count
struct backtrace_vector	vec

Macro Definition Documentation

◆ strnlen

#define strnlen xstrnlen

Definition at line 395 of file dwarf.c.

Enumeration Type Documentation

◆ attr_val_encoding

enum attr_val_encoding

Enumerator
ATTR_VAL_NONE
ATTR_VAL_ADDRESS
ATTR_VAL_ADDRESS_INDEX
ATTR_VAL_UINT
ATTR_VAL_SINT
ATTR_VAL_STRING
ATTR_VAL_STRING_INDEX
ATTR_VAL_REF_UNIT
ATTR_VAL_REF_INFO
ATTR_VAL_REF_ALT_INFO
ATTR_VAL_REF_SECTION
ATTR_VAL_REF_TYPE
ATTR_VAL_RNGLISTS_INDEX
ATTR_VAL_BLOCK
ATTR_VAL_EXPR

Definition at line 466 of file dwarf.c.

◆ dwarf_attribute

enum dwarf_attribute

Enumerator
DW_AT_sibling
DW_AT_location
DW_AT_name
DW_AT_ordering
DW_AT_subscr_data
DW_AT_byte_size
DW_AT_bit_offset
DW_AT_bit_size
DW_AT_element_list
DW_AT_stmt_list
DW_AT_low_pc
DW_AT_high_pc
DW_AT_language
DW_AT_member
DW_AT_discr
DW_AT_discr_value
DW_AT_visibility
DW_AT_import
DW_AT_string_length
DW_AT_common_reference
DW_AT_comp_dir
DW_AT_const_value
DW_AT_containing_type
DW_AT_default_value
DW_AT_inline
DW_AT_is_optional
DW_AT_lower_bound
DW_AT_producer
DW_AT_prototyped
DW_AT_return_addr
DW_AT_start_scope
DW_AT_bit_stride
DW_AT_upper_bound
DW_AT_abstract_origin
DW_AT_accessibility
DW_AT_address_class
DW_AT_artificial
DW_AT_base_types
DW_AT_calling_convention
DW_AT_count
DW_AT_data_member_location
DW_AT_decl_column
DW_AT_decl_file
DW_AT_decl_line
DW_AT_declaration
DW_AT_discr_list
DW_AT_encoding
DW_AT_external
DW_AT_frame_base
DW_AT_friend
DW_AT_identifier_case
DW_AT_macro_info
DW_AT_namelist_items
DW_AT_priority
DW_AT_segment
DW_AT_specification
DW_AT_static_link
DW_AT_type
DW_AT_use_location
DW_AT_variable_parameter
DW_AT_virtuality
DW_AT_vtable_elem_location
DW_AT_allocated
DW_AT_associated
DW_AT_data_location
DW_AT_byte_stride
DW_AT_entry_pc
DW_AT_use_UTF8
DW_AT_extension
DW_AT_ranges
DW_AT_trampoline
DW_AT_call_column
DW_AT_call_file
DW_AT_call_line
DW_AT_description
DW_AT_binary_scale
DW_AT_decimal_scale
DW_AT_small
DW_AT_decimal_sign
DW_AT_digit_count
DW_AT_picture_string
DW_AT_mutable
DW_AT_threads_scaled
DW_AT_explicit
DW_AT_object_pointer
DW_AT_endianity
DW_AT_elemental
DW_AT_pure
DW_AT_recursive
DW_AT_signature
DW_AT_main_subprogram
DW_AT_data_bit_offset
DW_AT_const_expr
DW_AT_enum_class
DW_AT_linkage_name
DW_AT_string_length_bit_size
DW_AT_string_length_byte_size
DW_AT_rank
DW_AT_str_offsets_base
DW_AT_addr_base
DW_AT_rnglists_base
DW_AT_dwo_name
DW_AT_reference
DW_AT_rvalue_reference
DW_AT_macros
DW_AT_call_all_calls
DW_AT_call_all_source_calls
DW_AT_call_all_tail_calls
DW_AT_call_return_pc
DW_AT_call_value
DW_AT_call_origin
DW_AT_call_parameter
DW_AT_call_pc
DW_AT_call_tail_call
DW_AT_call_target
DW_AT_call_target_clobbered
DW_AT_call_data_location
DW_AT_call_data_value
DW_AT_noreturn
DW_AT_alignment
DW_AT_export_symbols
DW_AT_deleted
DW_AT_defaulted
DW_AT_loclists_base
DW_AT_lo_user
DW_AT_hi_user
DW_AT_MIPS_fde
DW_AT_MIPS_loop_begin
DW_AT_MIPS_tail_loop_begin
DW_AT_MIPS_epilog_begin
DW_AT_MIPS_loop_unroll_factor
DW_AT_MIPS_software_pipeline_depth
DW_AT_MIPS_linkage_name
DW_AT_MIPS_stride
DW_AT_MIPS_abstract_name
DW_AT_MIPS_clone_origin
DW_AT_MIPS_has_inlines
DW_AT_HP_block_index
DW_AT_HP_unmodifiable
DW_AT_HP_prologue
DW_AT_HP_epilogue
DW_AT_HP_actuals_stmt_list
DW_AT_HP_proc_per_section
DW_AT_HP_raw_data_ptr
DW_AT_HP_pass_by_reference
DW_AT_HP_opt_level
DW_AT_HP_prof_version_id
DW_AT_HP_opt_flags
DW_AT_HP_cold_region_low_pc
DW_AT_HP_cold_region_high_pc
DW_AT_HP_all_variables_modifiable
DW_AT_HP_linkage_name
DW_AT_HP_prof_flags
DW_AT_HP_unit_name
DW_AT_HP_unit_size
DW_AT_HP_widened_byte_size
DW_AT_HP_definition_points
DW_AT_HP_default_location
DW_AT_HP_is_result_param
DW_AT_sf_names
DW_AT_src_info
DW_AT_mac_info
DW_AT_src_coords
DW_AT_body_begin
DW_AT_body_end
DW_AT_GNU_vector
DW_AT_GNU_guarded_by
DW_AT_GNU_pt_guarded_by
DW_AT_GNU_guarded
DW_AT_GNU_pt_guarded
DW_AT_GNU_locks_excluded
DW_AT_GNU_exclusive_locks_required
DW_AT_GNU_shared_locks_required
DW_AT_GNU_odr_signature
DW_AT_GNU_template_name
DW_AT_GNU_call_site_value
DW_AT_GNU_call_site_data_value
DW_AT_GNU_call_site_target
DW_AT_GNU_call_site_target_clobbered
DW_AT_GNU_tail_call
DW_AT_GNU_all_tail_call_sites
DW_AT_GNU_all_call_sites
DW_AT_GNU_all_source_call_sites
DW_AT_GNU_macros
DW_AT_GNU_deleted
DW_AT_GNU_dwo_name
DW_AT_GNU_dwo_id
DW_AT_GNU_ranges_base
DW_AT_GNU_addr_base
DW_AT_GNU_pubnames
DW_AT_GNU_pubtypes
DW_AT_GNU_discriminator
DW_AT_GNU_locviews
DW_AT_GNU_entry_view
DW_AT_VMS_rtnbeg_pd_address
DW_AT_use_GNAT_descriptive_type
DW_AT_GNAT_descriptive_type
DW_AT_GNU_numerator
DW_AT_GNU_denominator
DW_AT_GNU_bias
DW_AT_upc_threads_scaled
DW_AT_PGI_lbase
DW_AT_PGI_soffset
DW_AT_PGI_lstride
DW_AT_APPLE_optimized
DW_AT_APPLE_flags
DW_AT_APPLE_isa
DW_AT_APPLE_block
DW_AT_APPLE_major_runtime_vers
DW_AT_APPLE_runtime_class
DW_AT_APPLE_omit_frame_ptr
DW_AT_APPLE_property_name
DW_AT_APPLE_property_getter
DW_AT_APPLE_property_setter
DW_AT_APPLE_property_attribute
DW_AT_APPLE_objc_complete_type
DW_AT_APPLE_property

Definition at line 105 of file dwarf.c.

◆ dwarf_extended_line_number_op

enum dwarf_extended_line_number_op

Enumerator
DW_LNE_end_sequence
DW_LNE_set_address
DW_LNE_define_file
DW_LNE_set_discriminator

Definition at line 341 of file dwarf.c.

◆ dwarf_form

enum dwarf_form

Enumerator
DW_FORM_addr
DW_FORM_block2
DW_FORM_block4
DW_FORM_data2
DW_FORM_data4
DW_FORM_data8
DW_FORM_string
DW_FORM_block
DW_FORM_block1
DW_FORM_data1
DW_FORM_flag
DW_FORM_sdata
DW_FORM_strp
DW_FORM_udata
DW_FORM_ref_addr
DW_FORM_ref1
DW_FORM_ref2
DW_FORM_ref4
DW_FORM_ref8
DW_FORM_ref_udata
DW_FORM_indirect
DW_FORM_sec_offset
DW_FORM_exprloc
DW_FORM_flag_present
DW_FORM_ref_sig8
DW_FORM_strx
DW_FORM_addrx
DW_FORM_ref_sup4
DW_FORM_strp_sup
DW_FORM_data16
DW_FORM_line_strp
DW_FORM_implicit_const
DW_FORM_loclistx
DW_FORM_rnglistx
DW_FORM_ref_sup8
DW_FORM_strx1
DW_FORM_strx2
DW_FORM_strx3
DW_FORM_strx4
DW_FORM_addrx1
DW_FORM_addrx2
DW_FORM_addrx3
DW_FORM_addrx4
DW_FORM_GNU_addr_index
DW_FORM_GNU_str_index
DW_FORM_GNU_ref_alt
DW_FORM_GNU_strp_alt

Definition at line 55 of file dwarf.c.

◆ dwarf_line_number_content_type

enum dwarf_line_number_content_type

Enumerator
DW_LNCT_path
DW_LNCT_directory_index
DW_LNCT_timestamp
DW_LNCT_size
DW_LNCT_MD5
DW_LNCT_lo_user
DW_LNCT_hi_user

Definition at line 348 of file dwarf.c.

◆ dwarf_line_number_op

enum dwarf_line_number_op

Enumerator
DW_LNS_extended_op
DW_LNS_copy
DW_LNS_advance_pc
DW_LNS_advance_line
DW_LNS_set_file
DW_LNS_set_column
DW_LNS_negate_stmt
DW_LNS_set_basic_block
DW_LNS_const_add_pc
DW_LNS_fixed_advance_pc
DW_LNS_set_prologue_end
DW_LNS_set_epilogue_begin
DW_LNS_set_isa

Definition at line 325 of file dwarf.c.

◆ dwarf_range_list_entry

enum dwarf_range_list_entry

Enumerator
DW_RLE_end_of_list
DW_RLE_base_addressx
DW_RLE_startx_endx
DW_RLE_startx_length
DW_RLE_offset_pair
DW_RLE_base_address
DW_RLE_start_end
DW_RLE_start_length

Definition at line 358 of file dwarf.c.

◆ dwarf_tag

enum dwarf_tag

Enumerator
DW_TAG_entry_point
DW_TAG_compile_unit
DW_TAG_inlined_subroutine
DW_TAG_subprogram
DW_TAG_skeleton_unit

Definition at line 47 of file dwarf.c.

◆ dwarf_unit_type

enum dwarf_unit_type

Enumerator
DW_UT_compile
DW_UT_type
DW_UT_partial
DW_UT_skeleton
DW_UT_split_compile
DW_UT_split_type
DW_UT_lo_user
DW_UT_hi_user

Definition at line 369 of file dwarf.c.

Function Documentation