/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 1998.
This program is Open Source software; you can redistribute it and/or
modify it under the terms of the Open Software License version 1.0 as
published by the Open Source Initiative.
You should have received a copy of the Open Software License along
with this program; if not, you may obtain a copy of the Open Software
License version 1.0 from http://www.opensource.org/licenses/osl.php or
by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
3001 King Ranch Road, Ukiah, CA 95482. */
#include <config.h>
#include <dwarf.h>
#include <inttypes.h>
#include <libelf.h>
#include <libdw.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
static const char *tagnames[] =
{
[DW_TAG_array_type] = "DW_TAG_array_type",
[DW_TAG_class_type] = "DW_TAG_class_type",
[DW_TAG_entry_point] = "DW_TAG_entry_point",
[DW_TAG_enumeration_type] = "DW_TAG_enumeration_type",
[DW_TAG_formal_parameter] = "DW_TAG_formal_parameter",
[DW_TAG_imported_declaration] = "DW_TAG_imported_declaration",
[DW_TAG_label] = "DW_TAG_label",
[DW_TAG_lexical_block] = "DW_TAG_lexical_block",
[DW_TAG_member] = "DW_TAG_member",
[DW_TAG_pointer_type] = "DW_TAG_pointer_type",
[DW_TAG_reference_type] = "DW_TAG_reference_type",
[DW_TAG_compile_unit] = "DW_TAG_compile_unit",
[DW_TAG_string_type] = "DW_TAG_string_type",
[DW_TAG_structure_type] = "DW_TAG_structure_type",
[DW_TAG_subroutine_type] = "DW_TAG_subroutine_type",
[DW_TAG_typedef] = "DW_TAG_typedef",
[DW_TAG_union_type] = "DW_TAG_union_type",
[DW_TAG_unspecified_parameters] = "DW_TAG_unspecified_parameters",
[DW_TAG_variant] = "DW_TAG_variant",
[DW_TAG_common_block] = "DW_TAG_common_block",
[DW_TAG_common_inclusion] = "DW_TAG_common_inclusion",
[DW_TAG_inheritance] = "DW_TAG_inheritance",
[DW_TAG_inlined_subroutine] = "DW_TAG_inlined_subroutine",
[DW_TAG_module] = "DW_TAG_module",
[DW_TAG_ptr_to_member_type] = "DW_TAG_ptr_to_member_type",
[DW_TAG_set_type] = "DW_TAG_set_type",
[DW_TAG_subrange_type] = "DW_TAG_subrange_type",
[DW_TAG_with_stmt] = "DW_TAG_with_stmt",
[DW_TAG_access_declaration] = "DW_TAG_access_declaration",
[DW_TAG_base_type] = "DW_TAG_base_type",
[DW_TAG_catch_block] = "DW_TAG_catch_block",
[DW_TAG_const_type] = "DW_TAG_const_type",
[DW_TAG_constant] = "DW_TAG_constant",
[DW_TAG_enumerator] = "DW_TAG_enumerator",
[DW_TAG_file_type] = "DW_TAG_file_type",
[DW_TAG_friend] = "DW_TAG_friend",
[DW_TAG_namelist] = "DW_TAG_namelist",
[DW_TAG_namelist_item] = "DW_TAG_namelist_item",
[DW_TAG_packed_type] = "DW_TAG_packed_type",
[DW_TAG_subprogram] = "DW_TAG_subprogram",
[DW_TAG_template_type_param] = "DW_TAG_template_type_param",
[DW_TAG_template_value_param] = "DW_TAG_template_value_param",
[DW_TAG_thrown_type] = "DW_TAG_thrown_type",
[DW_TAG_try_block] = "DW_TAG_try_block",
[DW_TAG_variant_part] = "DW_TAG_variant_part",
[DW_TAG_variable] = "DW_TAG_variable",
[DW_TAG_volatile_type] = "DW_TAG_volatile_type"
};
#define ntagnames (sizeof (tagnames) / sizeof (tagnames[0]))
const struct
{
int code;
const char *name;
} attrs[] =
{
{ DW_AT_sibling, "sibling" },
{ DW_AT_location, "location" },
{ DW_AT_name, "name" },
{ DW_AT_ordering, "ordering" },
{ DW_AT_subscr_data, "subscr_data" },
{ DW_AT_byte_size, "byte_size" },
{ DW_AT_bit_offset, "bit_offset" },
{ DW_AT_bit_size, "bit_size" },
{ DW_AT_element_list, "element_list" },
{ DW_AT_stmt_list, "stmt_list" },
{ DW_AT_low_pc, "low_pc" },
{ DW_AT_high_pc, "high_pc" },
{ DW_AT_language, "language" },
{ DW_AT_member, "member" },
{ DW_AT_discr, "discr" },
{ DW_AT_discr_value, "discr_value" },
{ DW_AT_visibility, "visibility" },
{ DW_AT_import, "import" },
{ DW_AT_string_length, "string_length" },
{ DW_AT_common_reference, "common_reference" },
{ DW_AT_comp_dir, "comp_dir" },
{ DW_AT_const_value, "const_value" },
{ DW_AT_containing_type, "containing_type" },
{ DW_AT_default_value, "default_value" },
{ DW_AT_inline, "inline" },
{ DW_AT_is_optional, "is_optional" },
{ DW_AT_lower_bound, "lower_bound" },
{ DW_AT_producer, "producer" },
{ DW_AT_prototyped, "prototyped" },
{ DW_AT_return_addr, "return_addr" },
{ DW_AT_start_scope, "start_scope" },
{ DW_AT_stride_size, "stride_size" },
{ DW_AT_upper_bound, "upper_bound" },
{ DW_AT_abstract_origin, "abstract_origin" },
{ DW_AT_accessibility, "accessibility" },
{ DW_AT_address_class, "address_class" },
{ DW_AT_artificial, "artificial" },
{ DW_AT_base_types, "base_types" },
{ DW_AT_calling_convention, "calling_convention" },
{ DW_AT_count, "count" },
{ DW_AT_data_member_location, "data_member_location" },
{ DW_AT_decl_column, "decl_column" },
{ DW_AT_decl_file, "decl_file" },
{ DW_AT_decl_line, "decl_line" },
{ DW_AT_declaration, "declaration" },
{ DW_AT_discr_list, "discr_list" },
{ DW_AT_encoding, "encoding" },
{ DW_AT_external, "external" },
{ DW_AT_frame_base, "frame_base" },
{ DW_AT_friend, "friend" },
{ DW_AT_identifier_case, "identifier_case" },
{ DW_AT_macro_info, "macro_info" },
{ DW_AT_namelist_items, "namelist_items" },
{ DW_AT_priority, "priority" },
{ DW_AT_segment, "segment" },
{ DW_AT_specification, "specification" },
{ DW_AT_static_link, "static_link" },
{ DW_AT_type, "type" },
{ DW_AT_use_location, "use_location" },
{ DW_AT_variable_parameter, "variable_parameter" },
{ DW_AT_virtuality, "virtuality" },
{ DW_AT_vtable_elem_location, "vtable_elem_location" },
{ DW_AT_MIPS_fde, "MIPS_fde" },
{ DW_AT_MIPS_loop_begin, "MIPS_loop_begin" },
{ DW_AT_MIPS_tail_loop_begin, "MIPS_tail_loop_begin" },
{ DW_AT_MIPS_epilog_begin, "MIPS_epilog_begin" },
{ DW_AT_MIPS_loop_unroll_factor, "MIPS_loop_unroll_factor" },
{ DW_AT_MIPS_software_pipeline_depth, "MIPS_software_pipeline_depth" },
{ DW_AT_MIPS_linkage_name, "MIPS_linkage_name" },
{ DW_AT_MIPS_stride, "MIPS_stride" },
{ DW_AT_MIPS_abstract_name, "MIPS_abstract_name" },
{ DW_AT_MIPS_clone_origin, "MIPS_clone_origin" },
{ DW_AT_MIPS_has_inlines, "MIPS_has_inlines" },
{ DW_AT_MIPS_stride_byte, "MIPS_stride_byte" },
{ DW_AT_MIPS_stride_elem, "MIPS_stride_elem" },
{ DW_AT_MIPS_ptr_dopetype, "MIPS_ptr_dopetype" },
{ DW_AT_MIPS_allocatable_dopetype, "MIPS_allocatable_dopetype" },
{ DW_AT_MIPS_assumed_shape_dopetype, "MIPS_assumed_shape_dopetype" },
{ DW_AT_MIPS_assumed_size, "MIPS_assumed_size" },
{ DW_AT_sf_names, "sf_names" },
{ DW_AT_src_info, "src_info" },
{ DW_AT_mac_info, "mac_info" },
{ DW_AT_src_coords, "src_coords" },
{ DW_AT_body_begin, "body_begin" },
{ DW_AT_body_end, "body_end" }
};
#define nattrs (sizeof (attrs) / sizeof (attrs[0]))
void
handle (Dwarf *dbg, Dwarf_Die *die, int n)
{
Dwarf_Die child;
unsigned int tag;
const char *str;
char buf[30];
const char *name;
Dwarf_Off off;
Dwarf_Off cuoff;
size_t cnt;
Dwarf_Addr addr;
int i;
tag = dwarf_tag (die);
if (tag != DW_TAG_invalid)
{
if (tag < ntagnames)
str = tagnames[tag];
else
{
snprintf (buf, sizeof buf, "%#x", tag);
str = buf;
}
}
else
str = "* NO TAG *";
name = dwarf_diename (die);
if (name == 0)
name = "* NO NAME *";
off = dwarf_dieoffset (die);
cuoff = dwarf_cuoffset (die);
printf ("%*s%s\n", n * 5, "", str);
printf ("%*s Name : %s\n", n * 5, "", name);
printf ("%*s Offset : %lld\n", n * 5, "", (long long int) off);
printf ("%*s CU offset : %lld\n", n * 5, "", (long long int) cuoff);
printf ("%*s Attrs :", n * 5, "");
for (cnt = 0; cnt < nattrs; ++cnt)
if (dwarf_hasattr (die, attrs[cnt].code))
printf (" %s", attrs[cnt].name);
puts ("");
if (dwarf_hasattr (die, DW_AT_low_pc) && dwarf_lowpc (die, &addr) == 0)
{
Dwarf_Attribute attr;
Dwarf_Addr addr2;
printf ("%*s low PC : %#llx\n",
n * 5, "", (unsigned long long int) addr);
if (dwarf_attr (die, DW_AT_low_pc, &attr) == NULL
|| dwarf_formaddr (&attr, &addr2) != 0
|| addr != addr2)
puts ("************* DW_AT_low_pc verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_addr))
puts ("************* DW_AT_low_pc form failed ************");
else if (dwarf_whatform (&attr) != DW_FORM_addr)
puts ("************* DW_AT_low_pc form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_low_pc)
puts ("************* DW_AT_low_pc attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_high_pc) && dwarf_highpc (die, &addr) == 0)
{
Dwarf_Attribute attr;
Dwarf_Addr addr2;
printf ("%*s high PC : %#llx\n",
n * 5, "", (unsigned long long int) addr);
if (dwarf_attr (die, DW_AT_high_pc, &attr) == NULL
|| dwarf_formaddr (&attr, &addr2) != 0
|| addr != addr2)
puts ("************* DW_AT_high_pc verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_addr))
puts ("************* DW_AT_high_pc form failed ************");
else if (dwarf_whatform (&attr) != DW_FORM_addr)
puts ("************* DW_AT_high_pc form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_high_pc)
puts ("************* DW_AT_high_pc attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_byte_size) && (i = dwarf_bytesize (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s byte size : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_byte_size, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_byte_size verify failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_byte_size form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_byte_size form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_byte_size)
puts ("************* DW_AT_byte_size attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_bit_size) && (i = dwarf_bitsize (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s bit size : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_bit_size, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_bit_size test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_bit_size form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_bit_size form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_bit_size)
puts ("************* DW_AT_bit_size attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_bit_offset)
&& (i = dwarf_bitoffset (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s bit offset: %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_bit_offset, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_bit_offset test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_bit_offset form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_bit_offset form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_bit_offset)
puts ("************* DW_AT_bit_offset attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_language) && (i = dwarf_srclang (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s language : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_language, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_language test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_language form failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_language form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_language)
puts ("************* DW_AT_language attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_ordering)
&& (i = dwarf_arrayorder (die)) != -1)
{
Dwarf_Attribute attr;
Dwarf_Word u2;
unsigned int u;
printf ("%*s ordering : %d\n", n * 5, "", i);
if (dwarf_attr (die, DW_AT_ordering, &attr) == NULL
|| dwarf_formudata (&attr, &u2) != 0
|| i != (int) u2)
puts ("************* DW_AT_ordering test failed ************");
else if (! dwarf_hasform (&attr, DW_FORM_data1)
&& ! dwarf_hasform (&attr, DW_FORM_data2)
&& ! dwarf_hasform (&attr, DW_FORM_data4)
&& ! dwarf_hasform (&attr, DW_FORM_data8)
&& ! dwarf_hasform (&attr, DW_FORM_sdata)
&& ! dwarf_hasform (&attr, DW_FORM_udata))
puts ("************* DW_AT_ordering failed ************");
else if ((u = dwarf_whatform (&attr)) == 0
|| (u != DW_FORM_data1
&& u != DW_FORM_data2
&& u != DW_FORM_data4
&& u != DW_FORM_data8
&& u != DW_FORM_sdata
&& u != DW_FORM_udata))
puts ("************* DW_AT_ordering form (2) failed ************");
else if (dwarf_whatattr (&attr) != DW_AT_ordering)
puts ("************* DW_AT_ordering attr failed ************");
}
if (dwarf_hasattr (die, DW_AT_comp_dir))
{
Dwarf_Attribute attr;
if (dwarf_attr (die, DW_AT_comp_dir, &attr) == NULL
|| (name = dwarf_formstring (&attr)) == NULL)
puts ("************* DW_AT_comp_dir attr failed ************");
else
printf ("%*s directory : %s\n", n * 5, "", name);
}
if (dwarf_hasattr (die, DW_AT_producer))
{
Dwarf_Attribute attr;
if (dwarf_attr (die, DW_AT_producer, &attr) == NULL
|| (name = dwarf_formstring (&attr)) == NULL)
puts ("************* DW_AT_comp_dir attr failed ************");
else
printf ("%*s producer : %s\n", n * 5, "", name);
}
if (dwarf_haschildren (die) != 0 && dwarf_child (die, &child) == 0)
handle (dbg, &child, n + 1);
if (dwarf_siblingof (die, die) == 0)
handle (dbg, die, n);
}
int
main (int argc, char *argv[])
{
int cnt;
for (cnt = 1; cnt < argc; ++cnt)
{
int fd = open (argv[cnt], O_RDONLY);
Dwarf *dbg;
printf ("file: %s\n", basename (argv[cnt]));
dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable\n", argv[cnt]);
close (fd);
continue;
}
Dwarf_Off off = 0;
Dwarf_Off old_off = 0;
size_t hsize;
Dwarf_Off abbrev;
uint8_t addresssize;
uint8_t offsetsize;
while (dwarf_nextcu (dbg, off, &off, &hsize, &abbrev, &addresssize,
&offsetsize) == 0)
{
printf ("New CU: off = %llu, hsize = %zu, ab = %llu, as = %" PRIu8
", os = %" PRIu8 "\n",
(unsigned long long int) old_off, hsize,
(unsigned long long int) abbrev, addresssize,
offsetsize);
Dwarf_Die die;
if (dwarf_offdie (dbg, old_off + hsize, &die) != NULL)
handle (dbg, &die, 1);
old_off = off;
}
dwarf_end (dbg);
close (fd);
}
return 0;
}