diff options
Diffstat (limited to 'tests/show-die-info.c')
| -rw-r--r-- | tests/show-die-info.c | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/tests/show-die-info.c b/tests/show-die-info.c new file mode 100644 index 00000000..d4f992f3 --- /dev/null +++ b/tests/show-die-info.c @@ -0,0 +1,475 @@ +/* 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; +} |