freebsd-dev/lib/libdwarf/dwarf_dump.c
John Birrell 6433849359 Add a BSD licensed DWARF library for use by the DTrace clients.
The API for this library is deliberately different to the GPL'd
libdwarf to avoid licensing problems.
2008-05-22 02:14:23 +00:00

893 lines
22 KiB
C

/*-
* Copyright (c) 2007 John Birrell (jb@freebsd.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <stdlib.h>
#include <string.h>
#include "_libdwarf.h"
const char *
get_sht_desc(uint32_t sh_type)
{
switch (sh_type) {
case SHT_NULL:
return "inactive";
case SHT_PROGBITS:
return "program defined information";
case SHT_SYMTAB:
return "symbol table section";
case SHT_STRTAB:
return "string table section";
case SHT_RELA:
return "relocation section with addends";
case SHT_HASH:
return "symbol hash table section";
case SHT_DYNAMIC:
return "dynamic section";
case SHT_NOTE:
return "note section";
case SHT_NOBITS:
return "no space section";
case SHT_REL:
return "relocation section - no addends";
case SHT_SHLIB:
return "reserved - purpose unknown";
case SHT_DYNSYM:
return "dynamic symbol table section";
case SHT_INIT_ARRAY:
return "Initialization function pointers.";
case SHT_FINI_ARRAY:
return "Termination function pointers.";
case SHT_PREINIT_ARRAY:
return "Pre-initialization function ptrs.";
case SHT_GROUP:
return "Section group.";
case SHT_SYMTAB_SHNDX:
return "Section indexes (see SHN_XINDEX).";
case SHT_GNU_verdef:
return "Symbol versions provided";
case SHT_GNU_verneed:
return "Symbol versions required";
case SHT_GNU_versym:
return "Symbol version table";
case SHT_AMD64_UNWIND:
return "AMD64 unwind";
default:
return "Unknown";
}
}
const char *
get_attr_desc(uint32_t attr)
{
switch (attr) {
case DW_AT_abstract_origin:
return "DW_AT_abstract_origin";
case DW_AT_accessibility:
return "DW_AT_accessibility";
case DW_AT_address_class:
return "DW_AT_address_class";
case DW_AT_artificial:
return "DW_AT_artificial";
case DW_AT_base_types:
return "DW_AT_base_types";
case DW_AT_bit_offset:
return "DW_AT_bit_offset";
case DW_AT_bit_size:
return "DW_AT_bit_size";
case DW_AT_byte_size:
return "DW_AT_byte_size";
case DW_AT_calling_convention:
return "DW_AT_calling_convention";
case DW_AT_common_reference:
return "DW_AT_common_reference";
case DW_AT_comp_dir:
return "DW_AT_comp_dir";
case DW_AT_const_value:
return "DW_AT_const_value";
case DW_AT_containing_type:
return "DW_AT_containing_type";
case DW_AT_count:
return "DW_AT_count";
case DW_AT_data_member_location:
return "DW_AT_data_member_location";
case DW_AT_decl_column:
return "DW_AT_decl_column";
case DW_AT_decl_file:
return "DW_AT_decl_file";
case DW_AT_decl_line:
return "DW_AT_decl_line";
case DW_AT_declaration:
return "DW_AT_declaration";
case DW_AT_default_value:
return "DW_AT_default_value";
case DW_AT_discr:
return "DW_AT_discr";
case DW_AT_discr_list:
return "DW_AT_discr_list";
case DW_AT_discr_value:
return "DW_AT_discr_value";
case DW_AT_element_list:
return "DW_AT_element_list";
case DW_AT_encoding:
return "DW_AT_encoding";
case DW_AT_external:
return "DW_AT_external";
case DW_AT_frame_base:
return "DW_AT_frame_base";
case DW_AT_friend:
return "DW_AT_friend";
case DW_AT_high_pc:
return "DW_AT_high_pc";
case DW_AT_identifier_case:
return "DW_AT_identifier_case";
case DW_AT_import:
return "DW_AT_import";
case DW_AT_inline:
return "DW_AT_inline";
case DW_AT_is_optional:
return "DW_AT_is_optional";
case DW_AT_language:
return "DW_AT_language";
case DW_AT_location:
return "DW_AT_location";
case DW_AT_low_pc:
return "DW_AT_low_pc";
case DW_AT_lower_bound:
return "DW_AT_lower_bound";
case DW_AT_macro_info:
return "DW_AT_macro_info";
case DW_AT_member:
return "DW_AT_member";
case DW_AT_name:
return "DW_AT_name";
case DW_AT_namelist_item:
return "DW_AT_namelist_item";
case DW_AT_ordering:
return "DW_AT_ordering";
case DW_AT_priority:
return "DW_AT_priority";
case DW_AT_producer:
return "DW_AT_producer";
case DW_AT_prototyped:
return "DW_AT_prototyped";
case DW_AT_return_addr:
return "DW_AT_return_addr";
case DW_AT_segment:
return "DW_AT_segment";
case DW_AT_sibling:
return "DW_AT_sibling";
case DW_AT_specification:
return "DW_AT_specification";
case DW_AT_start_scope:
return "DW_AT_start_scope";
case DW_AT_static_link:
return "DW_AT_static_link";
case DW_AT_stmt_list:
return "DW_AT_stmt_list";
case DW_AT_stride_size:
return "DW_AT_stride_size";
case DW_AT_string_length:
return "DW_AT_string_length";
case DW_AT_subscr_data:
return "DW_AT_subscr_data";
case DW_AT_type:
return "DW_AT_type";
case DW_AT_upper_bound:
return "DW_AT_upper_bound";
case DW_AT_use_location:
return "DW_AT_use_location";
case DW_AT_variable_parameter:
return "DW_AT_variable_parameter";
case DW_AT_virtuality:
return "DW_AT_virtuality";
case DW_AT_visibility:
return "DW_AT_visibility";
case DW_AT_vtable_elem_location:
return "DW_AT_vtable_elem_location";
default:
break;
}
return "Unknown attribute";
}
const char *
get_form_desc(uint32_t form)
{
switch (form) {
case DW_FORM_addr:
return "DW_FORM_addr";
case DW_FORM_block:
return "DW_FORM_block";
case DW_FORM_block1:
return "DW_FORM_block1";
case DW_FORM_block2:
return "DW_FORM_block2";
case DW_FORM_block4:
return "DW_FORM_block4";
case DW_FORM_data1:
return "DW_FORM_data1";
case DW_FORM_data2:
return "DW_FORM_data2";
case DW_FORM_data4:
return "DW_FORM_data4";
case DW_FORM_data8:
return "DW_FORM_data8";
case DW_FORM_flag:
return "DW_FORM_flag";
case DW_FORM_indirect:
return "DW_FORM_indirect";
case DW_FORM_ref1:
return "DW_FORM_ref1";
case DW_FORM_ref2:
return "DW_FORM_ref2";
case DW_FORM_ref4:
return "DW_FORM_ref4";
case DW_FORM_ref8:
return "DW_FORM_ref8";
case DW_FORM_ref_addr:
return "DW_FORM_ref_addr";
case DW_FORM_ref_udata:
return "DW_FORM_ref_udata";
case DW_FORM_sdata:
return "DW_FORM_sdata";
case DW_FORM_string:
return "DW_FORM_string";
case DW_FORM_strp:
return "DW_FORM_strp";
case DW_FORM_udata:
return "DW_FORM_udata";
default:
break;
}
return "Unknown attribute";
}
const char *
get_tag_desc(uint32_t tag)
{
switch (tag) {
case DW_TAG_access_declaration:
return "DW_TAG_access_declaration";
case DW_TAG_array_type:
return "DW_TAG_array_type";
case DW_TAG_base_type:
return "DW_TAG_base_type";
case DW_TAG_catch_block:
return "DW_TAG_catch_block";
case DW_TAG_class_type:
return "DW_TAG_class_type";
case DW_TAG_common_block:
return "DW_TAG_common_block";
case DW_TAG_common_inclusion:
return "DW_TAG_common_inclusion";
case DW_TAG_compile_unit:
return "DW_TAG_compile_unit";
case DW_TAG_condition:
return "DW_TAG_condition";
case DW_TAG_const_type:
return "DW_TAG_const_type";
case DW_TAG_constant:
return "DW_TAG_constant";
case DW_TAG_dwarf_procedure:
return "DW_TAG_dwarf_procedure";
case DW_TAG_entry_point:
return "DW_TAG_entry_point";
case DW_TAG_enumeration_type:
return "DW_TAG_enumeration_type";
case DW_TAG_enumerator:
return "DW_TAG_enumerator";
case DW_TAG_formal_parameter:
return "DW_TAG_formal_parameter";
case DW_TAG_friend:
return "DW_TAG_friend";
case DW_TAG_imported_declaration:
return "DW_TAG_imported_declaration";
case DW_TAG_imported_module:
return "DW_TAG_imported_module";
case DW_TAG_imported_unit:
return "DW_TAG_imported_unit";
case DW_TAG_inheritance:
return "DW_TAG_inheritance";
case DW_TAG_inlined_subroutine:
return "DW_TAG_inlined_subroutine";
case DW_TAG_interface_type:
return "DW_TAG_interface_type";
case DW_TAG_label:
return "DW_TAG_label";
case DW_TAG_lexical_block:
return "DW_TAG_lexical_block";
case DW_TAG_member:
return "DW_TAG_member";
case DW_TAG_module:
return "DW_TAG_module";
case DW_TAG_namelist:
return "DW_TAG_namelist";
case DW_TAG_namelist_item:
return "DW_TAG_namelist_item";
case DW_TAG_namespace:
return "DW_TAG_namespace";
case DW_TAG_packed_type:
return "DW_TAG_packed_type";
case DW_TAG_partial_unit:
return "DW_TAG_partial_unit";
case DW_TAG_pointer_type:
return "DW_TAG_pointer_type";
case DW_TAG_ptr_to_member_type:
return "DW_TAG_ptr_to_member_type";
case DW_TAG_reference_type:
return "DW_TAG_reference_type";
case DW_TAG_restrict_type:
return "DW_TAG_restrict_type";
case DW_TAG_set_type:
return "DW_TAG_set_type";
case DW_TAG_shared_type:
return "DW_TAG_shared_type";
case DW_TAG_string_type:
return "DW_TAG_string_type";
case DW_TAG_structure_type:
return "DW_TAG_structure_type";
case DW_TAG_subprogram:
return "DW_TAG_subprogram";
case DW_TAG_subrange_type:
return "DW_TAG_subrange_type";
case DW_TAG_subroutine_type:
return "DW_TAG_subroutine_type";
case DW_TAG_template_type_parameter:
return "DW_TAG_template_type_parameter";
case DW_TAG_template_value_parameter:
return "DW_TAG_template_value_parameter";
case DW_TAG_thrown_type:
return "DW_TAG_thrown_type";
case DW_TAG_try_block:
return "DW_TAG_try_block";
case DW_TAG_typedef:
return "DW_TAG_typedef";
case DW_TAG_union_type:
return "DW_TAG_union_type";
case DW_TAG_unspecified_parameters:
return "DW_TAG_unspecified_parameters";
case DW_TAG_unspecified_type:
return "DW_TAG_unspecified_type";
case DW_TAG_variable:
return "DW_TAG_variable";
case DW_TAG_variant:
return "DW_TAG_variant";
case DW_TAG_variant_part:
return "DW_TAG_variant_part";
case DW_TAG_volatile_type:
return "DW_TAG_volatile_type";
case DW_TAG_with_stmt:
return "DW_TAG_with_stmt";
default:
break;
}
return "Unknown tag";
}
void
dwarf_dump_abbrev(Dwarf_Debug dbg)
{
Dwarf_Abbrev a;
Dwarf_Attribute at;
Dwarf_CU cu;
printf("Contents of the .debug_abbrev section:\n\nEntry Tag\n");
STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
STAILQ_FOREACH(a, &cu->cu_abbrev, a_next) {
printf("%5lu %-30s [%s children]\n",
(u_long) a->a_entry, get_tag_desc(a->a_tag),
(a->a_children == DW_CHILDREN_yes) ? "has" : "no");
STAILQ_FOREACH(at, &a->a_attrib, at_next)
printf(" %-30s %s\n", get_attr_desc(at->at_attrib),
get_form_desc(at->at_form));
}
}
}
#ifdef DOODAD
case DW_AT_inline:
switch (uvalue)
{
case DW_INL_not_inlined:
printf (_("(not inlined)"));
break;
case DW_INL_inlined:
printf (_("(inlined)"));
break;
case DW_INL_declared_not_inlined:
printf (_("(declared as inline but ignored)"));
break;
case DW_INL_declared_inlined:
printf (_("(declared as inline and inlined)"));
break;
default:
printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
break;
}
break;
case DW_AT_language:
switch (uvalue)
{
case DW_LANG_C: printf ("(non-ANSI C)"); break;
case DW_LANG_C89: printf ("(ANSI C)"); break;
case DW_LANG_C_plus_plus: printf ("(C++)"); break;
case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
case DW_LANG_Modula2: printf ("(Modula 2)"); break;
case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
case DW_LANG_Ada83: printf ("(Ada)"); break;
case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
/* DWARF 2.1 values. */
case DW_LANG_C99: printf ("(ANSI C99)"); break;
case DW_LANG_Ada95: printf ("(ADA 95)"); break;
case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
/* MIPS extension. */
case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
/* UPC extension. */
case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
default:
printf ("(Unknown: %lx)", uvalue);
break;
}
break;
case DW_AT_encoding:
switch (uvalue)
{
case DW_ATE_void: printf ("(void)"); break;
case DW_ATE_address: printf ("(machine address)"); break;
case DW_ATE_boolean: printf ("(boolean)"); break;
case DW_ATE_complex_float: printf ("(complex float)"); break;
case DW_ATE_float: printf ("(float)"); break;
case DW_ATE_signed: printf ("(signed)"); break;
case DW_ATE_signed_char: printf ("(signed char)"); break;
case DW_ATE_unsigned: printf ("(unsigned)"); break;
case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
/* DWARF 2.1 value. */
case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
default:
if (uvalue >= DW_ATE_lo_user
&& uvalue <= DW_ATE_hi_user)
printf ("(user defined type)");
else
printf ("(unknown type)");
break;
}
break;
case DW_AT_accessibility:
switch (uvalue)
{
case DW_ACCESS_public: printf ("(public)"); break;
case DW_ACCESS_protected: printf ("(protected)"); break;
case DW_ACCESS_private: printf ("(private)"); break;
default:
printf ("(unknown accessibility)");
break;
}
break;
case DW_AT_visibility:
switch (uvalue)
{
case DW_VIS_local: printf ("(local)"); break;
case DW_VIS_exported: printf ("(exported)"); break;
case DW_VIS_qualified: printf ("(qualified)"); break;
default: printf ("(unknown visibility)"); break;
}
break;
case DW_AT_virtuality:
switch (uvalue)
{
case DW_VIRTUALITY_none: printf ("(none)"); break;
case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
default: printf ("(unknown virtuality)"); break;
}
break;
case DW_AT_identifier_case:
switch (uvalue)
{
case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
case DW_ID_up_case: printf ("(up_case)"); break;
case DW_ID_down_case: printf ("(down_case)"); break;
case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
default: printf ("(unknown case)"); break;
}
break;
case DW_AT_calling_convention:
switch (uvalue)
{
case DW_CC_normal: printf ("(normal)"); break;
case DW_CC_program: printf ("(program)"); break;
case DW_CC_nocall: printf ("(nocall)"); break;
default:
if (uvalue >= DW_CC_lo_user
&& uvalue <= DW_CC_hi_user)
printf ("(user defined)");
else
printf ("(unknown convention)");
}
break;
case DW_AT_ordering:
switch (uvalue)
{
case -1: printf ("(undefined)"); break;
case 0: printf ("(row major)"); break;
case 1: printf ("(column major)"); break;
}
break;
case DW_AT_frame_base:
case DW_AT_location:
case DW_AT_data_member_location:
case DW_AT_vtable_elem_location:
case DW_AT_allocated:
case DW_AT_associated:
case DW_AT_data_location:
case DW_AT_stride:
case DW_AT_upper_bound:
case DW_AT_lower_bound:
if (block_start)
{
printf ("(");
decode_location_expression (block_start, pointer_size, uvalue);
printf (")");
}
else if (form == DW_FORM_data4 || form == DW_FORM_data8)
{
printf ("(");
printf ("location list");
printf (")");
}
break;
#endif
static void
dwarf_dump_av_attr(Dwarf_Die die __unused, Dwarf_AttrValue av)
{
switch (av->av_attrib) {
case DW_AT_accessibility:
break;
case DW_AT_calling_convention:
break;
case DW_AT_encoding:
break;
case DW_AT_identifier_case:
break;
case DW_AT_inline:
break;
case DW_AT_language:
break;
case DW_AT_ordering:
break;
case DW_AT_virtuality:
break;
case DW_AT_visibility:
break;
case DW_AT_frame_base:
case DW_AT_location:
case DW_AT_data_member_location:
case DW_AT_vtable_elem_location:
case DW_AT_upper_bound:
case DW_AT_lower_bound:
break;
default:
break;
}
}
void
dwarf_dump_av(Dwarf_Die die, Dwarf_AttrValue av)
{
uint64_t i;
printf(" %-30s : %-16s ",
get_attr_desc(av->av_attrib),
get_form_desc(av->av_form));
switch (av->av_form) {
case DW_FORM_addr:
printf("0x%llx", (unsigned long long) av->u[0].u64);
break;
case DW_FORM_block:
case DW_FORM_block1:
case DW_FORM_block2:
case DW_FORM_block4:
printf("%lu byte block:", (u_long) av->u[0].u64);
for (i = 0; i < av->u[0].u64; i++)
printf(" %02x", av->u[1].u8p[i]);
break;
case DW_FORM_data1:
case DW_FORM_data2:
case DW_FORM_data4:
case DW_FORM_data8:
case DW_FORM_flag:
printf("%llu", (unsigned long long) av->u[0].u64);
break;
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
case DW_FORM_ref8:
case DW_FORM_ref_udata:
printf("<%llx>", (unsigned long long) (av->u[0].u64 +
die->die_cu->cu_offset));
break;
case DW_FORM_string:
printf("%s", av->u[0].s);
break;
case DW_FORM_strp:
printf("(indirect string, offset 0x%llx): %s",
(unsigned long long) av->u[0].u64, av->u[1].s);
break;
default:
printf("unknown form");
break;
}
/* Dump any extra attribute-specific information. */
dwarf_dump_av_attr(die, av);
printf("\n");
}
void
dwarf_dump_die_at_offset(Dwarf_Debug dbg, Dwarf_Off off)
{
Dwarf_CU cu;
Dwarf_Die die;
if (dbg == NULL)
return;
STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
STAILQ_FOREACH(die, &cu->cu_die, die_next) {
if ((off_t) die->die_offset == off) {
dwarf_dump_die(die);
return;
}
}
}
}
void
dwarf_dump_die(Dwarf_Die die)
{
Dwarf_AttrValue av;
printf("<%d><%llx>: Abbrev number: %llu (%s)\n",
die->die_level, (unsigned long long) die->die_offset,
(unsigned long long) die->die_abnum,
get_tag_desc(die->die_a->a_tag));
STAILQ_FOREACH(av, &die->die_attrval, av_next)
dwarf_dump_av(die, av);
}
void
dwarf_dump_raw(Dwarf_Debug dbg)
{
Dwarf_CU cu;
char *p = (char *) dbg;
int i;
printf("dbg %p\n",dbg);
if (dbg == NULL)
return;
for (i = 0; i < (int) sizeof(*dbg); i++) {
if (*p >= 0x20 && *p < 0x7f) {
printf(" %c",*p++ & 0xff);
} else {
printf(" %02x",*p++ & 0xff);
}
}
printf("\n");
STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
p = (char *) cu;
printf("cu %p\n",cu);
for (i = 0; i < (int) sizeof(*cu); i++) {
if (*p >= 0x20 && *p < 0x7f) {
printf(" %c",*p++ & 0xff);
} else {
printf(" %02x",*p++ & 0xff);
}
}
printf("\n");
}
}
static void
dwarf_dump_tree_dies(Dwarf_Debug dbg, Dwarf_Die die, Dwarf_Error *error)
{
Dwarf_Die child;
int ret;
do {
dwarf_dump_die(die);
if ((ret = dwarf_child(die, &child, error) == DWARF_E_NO_ENTRY)) {
/* No children. */
} else if (ret != DWARF_E_NONE) {
printf("Error %s\n", dwarf_errmsg(error));
return;
} else
dwarf_dump_tree_dies(dbg, child, error);
if (dwarf_siblingof(dbg, die, &die, error) != DWARF_E_NONE)
die = NULL;
} while (die != NULL);
}
void
dwarf_dump_tree(Dwarf_Debug dbg)
{
Dwarf_CU cu;
Dwarf_Die die;
Dwarf_Error error;
Dwarf_Half cu_pointer_size;
Dwarf_Half cu_version;
Dwarf_Unsigned cu_abbrev_offset;
Dwarf_Unsigned cu_header_length;
Dwarf_Unsigned cu_next_offset;
STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
printf ("\nCompilation Unit @ offset %llx:\n",
(unsigned long long) cu->cu_offset);
printf (" Length: %lu\n", (u_long) cu->cu_length);
printf (" Version: %hu\n", cu->cu_version);
printf (" Abbrev Offset: %lu\n", (u_long) cu->cu_abbrev_offset);
printf (" Pointer Size: %u\n", (u_int) cu->cu_pointer_size);
if (dwarf_next_cu_header(dbg, &cu_header_length,
&cu_version, &cu_abbrev_offset, &cu_pointer_size,
&cu_next_offset, &error) != DWARF_E_NONE) {
printf("Error %s\n", dwarf_errmsg(&error));
return;
}
if (dwarf_siblingof(dbg, NULL, &die, &error) != DWARF_E_NONE) {
printf("Error %s\n", dwarf_errmsg(&error));
return;
}
dwarf_dump_tree_dies(dbg, die, &error);
}
}
void
dwarf_dump_info(Dwarf_Debug dbg)
{
Dwarf_CU cu;
Dwarf_Die die;
printf("Contents of the .debug_info section:\n");
STAILQ_FOREACH(cu, &dbg->dbg_cu, cu_next) {
printf ("\nCompilation Unit @ offset %llx:\n",
(unsigned long long) cu->cu_offset);
printf (" Length: %lu\n", (u_long) cu->cu_length);
printf (" Version: %hu\n", cu->cu_version);
printf (" Abbrev Offset: %lu\n", (u_long) cu->cu_abbrev_offset);
printf (" Pointer Size: %u\n", (u_int) cu->cu_pointer_size);
STAILQ_FOREACH(die, &cu->cu_die, die_next)
dwarf_dump_die(die);
}
}
void
dwarf_dump_shstrtab(Dwarf_Debug dbg)
{
char *name;
int indx = 0;
printf("---------------------\nSection header string table contents:\n");
while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_stnum, indx)) != NULL) {
printf("%5d '%s'\n",indx,name);
indx += strlen(name) + 1;
}
}
void
dwarf_dump_strtab(Dwarf_Debug dbg)
{
char *name;
int indx = 0;
printf("---------------------\nString table contents:\n");
while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_strtab].s_shnum, indx)) != NULL) {
printf("%5d '%s'\n",indx,name);
indx += strlen(name) + 1;
}
}
void
dwarf_dump_dbgstr(Dwarf_Debug dbg)
{
char *name;
int indx = 0;
printf("---------------------\nDebug string table contents:\n");
while ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_debug_str].s_shnum, indx)) != NULL) {
printf("%5d '%s'\n",indx,name);
indx += strlen(name) + 1;
}
}
void
dwarf_dump_symtab(Dwarf_Debug dbg)
{
GElf_Sym sym;
char *name;
int indx = 0;
printf("---------------------\nSymbol table contents:\n");
while (gelf_getsym(dbg->dbg_s[DWARF_symtab].s_data, indx++, &sym) != NULL) {
if ((name = elf_strptr(dbg->dbg_elf, dbg->dbg_s[DWARF_strtab].s_shnum, sym.st_name)) == NULL)
printf("sym.st_name %u indx %d sym.st_size %lu\n",sym.st_name,indx,(u_long) sym.st_size);
else
printf("'%s' sym.st_name %u indx %d sym.st_size %lu\n",name,sym.st_name,indx,(u_long) sym.st_size);
}
}
void
dwarf_dump(Dwarf_Debug dbg)
{
dwarf_dump_strtab(dbg);
dwarf_dump_shstrtab(dbg);
dwarf_dump_dbgstr(dbg);
dwarf_dump_symtab(dbg);
dwarf_dump_info(dbg);
}