From: Nick Clifton Date: Tue, 2 Feb 1999 15:59:56 +0000 (+0000) Subject: Dump tags found after the comp unit entry in a .debug_info section/ X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=429ca00c5f912e31ec49528ea775b8c34e493e9a;p=binutils-gdb.git Dump tags found after the comp unit entry in a .debug_info section/ --- diff --git a/binutils/readelf.c b/binutils/readelf.c index ad6937007f0..f5a95cbbbcd 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -166,6 +166,7 @@ static void add_abbrev PARAMS ((unsigned long, un static void add_abbrev_attr PARAMS ((unsigned long, unsigned long)); static unsigned char * read_and_display_attr PARAMS ((unsigned long, unsigned long, unsigned char *, unsigned long)); static unsigned char * display_block PARAMS ((unsigned char *, unsigned long)); +static void decode_location_expression PARAMS ((unsigned char *, unsigned int)); typedef int Elf32_Word; @@ -3389,7 +3390,8 @@ read_leb128 (data, length_return, sign) } while (byte & 0x80); - * length_return = num_read; + if (length_return != NULL) + * length_return = num_read; if (sign && (shift < 32) && (byte & 0x40)) result |= -1 << shift; @@ -4128,6 +4130,175 @@ display_block (data, length) return data; } +static void +decode_location_expression (data, pointer_size) + unsigned char * data; + unsigned int pointer_size; +{ + unsigned char op; + int bytes_read; + + op = * data ++; + + switch (op) + { + case DW_OP_addr: printf ("DW_OP_addr: %x", byte_get (data, pointer_size)); break; + case DW_OP_deref: printf ("DW_OP_deref"); break; + case DW_OP_const1u: printf ("DW_OP_const1u: %u", byte_get (data, 1)); break; + case DW_OP_const1s: printf ("DW_OP_const1s: %d", byte_get (data, 1)); break; + case DW_OP_const2u: printf ("DW_OP_const2u: %u", byte_get (data, 2)); break; + case DW_OP_const2s: printf ("DW_OP_const2s: %d", byte_get (data, 2)); break; + case DW_OP_const4u: printf ("DW_OP_const4u: %u", byte_get (data, 4)); break; + case DW_OP_const4s: printf ("DW_OP_const4s: %d", byte_get (data, 4)); break; + case DW_OP_const8u: printf ("DW_OP_const8u: %u %u", byte_get (data, 4), byte_get (data, 4)); break; + case DW_OP_const8s: printf ("DW_OP_const8s: %d %d", byte_get (data, 4), byte_get (data, 4)); break; + case DW_OP_constu: printf ("DW_OP_constu: %lu", read_leb128 (data, NULL, 0)); break; + case DW_OP_consts: printf ("DW_OP_consts: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_dup: printf ("DW_OP_dup"); break; + case DW_OP_drop: printf ("DW_OP_drop"); break; + case DW_OP_over: printf ("DW_OP_over"); break; + case DW_OP_pick: printf ("DW_OP_pick: %d", byte_get (data, 1)); break; + case DW_OP_swap: printf ("DW_OP_swap"); break; + case DW_OP_rot: printf ("DW_OP_rot"); break; + case DW_OP_xderef: printf ("DW_OP_xderef"); break; + case DW_OP_abs: printf ("DW_OP_abs"); break; + case DW_OP_and: printf ("DW_OP_and"); break; + case DW_OP_div: printf ("DW_OP_div"); break; + case DW_OP_minus: printf ("DW_OP_minus"); break; + case DW_OP_mod: printf ("DW_OP_mod"); break; + case DW_OP_mul: printf ("DW_OP_mul"); break; + case DW_OP_neg: printf ("DW_OP_neg"); break; + case DW_OP_not: printf ("DW_OP_not"); break; + case DW_OP_or: printf ("DW_OP_or"); break; + case DW_OP_plus: printf ("DW_OP_plus"); break; + case DW_OP_plus_uconst: printf ("DW_OP_plus_uconst: %lu", read_leb128 (data, NULL, 0)); break; + case DW_OP_shl: printf ("DW_OP_shl"); break; + case DW_OP_shr: printf ("DW_OP_shr"); break; + case DW_OP_shra: printf ("DW_OP_shra"); break; + case DW_OP_xor: printf ("DW_OP_xor"); break; + case DW_OP_bra: printf ("DW_OP_bra: %d", byte_get (data, 2)); break; + case DW_OP_eq: printf ("DW_OP_eq"); break; + case DW_OP_ge: printf ("DW_OP_ge"); break; + case DW_OP_gt: printf ("DW_OP_gt"); break; + case DW_OP_le: printf ("DW_OP_le"); break; + case DW_OP_lt: printf ("DW_OP_lt"); break; + case DW_OP_ne: printf ("DW_OP_ne"); break; + case DW_OP_skip: printf ("DW_OP_skip: %d", byte_get (data, 2)); break; + case DW_OP_lit0: printf ("DW_OP_lit0"); break; + case DW_OP_lit1: printf ("DW_OP_lit1"); break; + case DW_OP_lit2: printf ("DW_OP_lit2"); break; + case DW_OP_lit3: printf ("DW_OP_lit3"); break; + case DW_OP_lit4: printf ("DW_OP_lit4"); break; + case DW_OP_lit5: printf ("DW_OP_lit5"); break; + case DW_OP_lit6: printf ("DW_OP_lit6"); break; + case DW_OP_lit7: printf ("DW_OP_lit7"); break; + case DW_OP_lit8: printf ("DW_OP_lit8"); break; + case DW_OP_lit9: printf ("DW_OP_lit9"); break; + case DW_OP_lit10: printf ("DW_OP_lit10"); break; + case DW_OP_lit11: printf ("DW_OP_lit11"); break; + case DW_OP_lit12: printf ("DW_OP_lit12"); break; + case DW_OP_lit13: printf ("DW_OP_lit13"); break; + case DW_OP_lit14: printf ("DW_OP_lit14"); break; + case DW_OP_lit15: printf ("DW_OP_lit15"); break; + case DW_OP_lit16: printf ("DW_OP_lit16"); break; + case DW_OP_lit17: printf ("DW_OP_lit17"); break; + case DW_OP_lit18: printf ("DW_OP_lit18"); break; + case DW_OP_lit19: printf ("DW_OP_lit19"); break; + case DW_OP_lit20: printf ("DW_OP_lit20"); break; + case DW_OP_lit21: printf ("DW_OP_lit21"); break; + case DW_OP_lit22: printf ("DW_OP_lit22"); break; + case DW_OP_lit23: printf ("DW_OP_lit23"); break; + case DW_OP_lit24: printf ("DW_OP_lit24"); break; + case DW_OP_lit25: printf ("DW_OP_lit25"); break; + case DW_OP_lit26: printf ("DW_OP_lit26"); break; + case DW_OP_lit27: printf ("DW_OP_lit27"); break; + case DW_OP_lit28: printf ("DW_OP_lit28"); break; + case DW_OP_lit29: printf ("DW_OP_lit29"); break; + case DW_OP_lit30: printf ("DW_OP_lit30"); break; + case DW_OP_lit31: printf ("DW_OP_lit31"); break; + case DW_OP_reg0: printf ("DW_OP_reg0"); break; + case DW_OP_reg1: printf ("DW_OP_reg1"); break; + case DW_OP_reg2: printf ("DW_OP_reg2"); break; + case DW_OP_reg3: printf ("DW_OP_reg3"); break; + case DW_OP_reg4: printf ("DW_OP_reg4"); break; + case DW_OP_reg5: printf ("DW_OP_reg5"); break; + case DW_OP_reg6: printf ("DW_OP_reg6"); break; + case DW_OP_reg7: printf ("DW_OP_reg7"); break; + case DW_OP_reg8: printf ("DW_OP_reg8"); break; + case DW_OP_reg9: printf ("DW_OP_reg9"); break; + case DW_OP_reg10: printf ("DW_OP_reg10"); break; + case DW_OP_reg11: printf ("DW_OP_reg11"); break; + case DW_OP_reg12: printf ("DW_OP_reg12"); break; + case DW_OP_reg13: printf ("DW_OP_reg13"); break; + case DW_OP_reg14: printf ("DW_OP_reg14"); break; + case DW_OP_reg15: printf ("DW_OP_reg15"); break; + case DW_OP_reg16: printf ("DW_OP_reg16"); break; + case DW_OP_reg17: printf ("DW_OP_reg17"); break; + case DW_OP_reg18: printf ("DW_OP_reg18"); break; + case DW_OP_reg19: printf ("DW_OP_reg19"); break; + case DW_OP_reg20: printf ("DW_OP_reg20"); break; + case DW_OP_reg21: printf ("DW_OP_reg21"); break; + case DW_OP_reg22: printf ("DW_OP_reg22"); break; + case DW_OP_reg23: printf ("DW_OP_reg23"); break; + case DW_OP_reg24: printf ("DW_OP_reg24"); break; + case DW_OP_reg25: printf ("DW_OP_reg25"); break; + case DW_OP_reg26: printf ("DW_OP_reg26"); break; + case DW_OP_reg27: printf ("DW_OP_reg27"); break; + case DW_OP_reg28: printf ("DW_OP_reg28"); break; + case DW_OP_reg29: printf ("DW_OP_reg29"); break; + case DW_OP_reg30: printf ("DW_OP_reg30"); break; + case DW_OP_reg31: printf ("DW_OP_reg31"); break; + case DW_OP_breg0: printf ("DW_OP_breg0: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg1: printf ("DW_OP_breg1: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg2: printf ("DW_OP_breg2: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg3: printf ("DW_OP_breg3: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg4: printf ("DW_OP_breg4: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg5: printf ("DW_OP_breg5: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg6: printf ("DW_OP_breg6: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg7: printf ("DW_OP_breg7: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg8: printf ("DW_OP_breg8: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg9: printf ("DW_OP_breg9: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg10: printf ("DW_OP_breg10: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg11: printf ("DW_OP_breg11: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg12: printf ("DW_OP_breg12: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg13: printf ("DW_OP_breg13: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg14: printf ("DW_OP_breg14: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg15: printf ("DW_OP_breg15: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg16: printf ("DW_OP_breg16: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg17: printf ("DW_OP_breg17: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg18: printf ("DW_OP_breg18: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg19: printf ("DW_OP_breg19: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg20: printf ("DW_OP_breg20: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg21: printf ("DW_OP_breg21: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg22: printf ("DW_OP_breg22: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg23: printf ("DW_OP_breg23: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg24: printf ("DW_OP_breg24: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg25: printf ("DW_OP_breg25: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg26: printf ("DW_OP_breg26: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg27: printf ("DW_OP_breg27: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg28: printf ("DW_OP_breg28: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg29: printf ("DW_OP_breg29: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg30: printf ("DW_OP_breg30: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_breg31: printf ("DW_OP_breg31: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_regx: printf ("DW_OP_regx: %lu", read_leb128 (data, NULL, 0)); break; + case DW_OP_fbreg: printf ("DW_OP_fbreg: %ld", read_leb128 (data, NULL, 1)); break; + case DW_OP_bregx: printf ("DW_OP_bregx: %lu %ld", read_leb128 (data, & bytes_read, 0), read_leb128 (data + bytes_read, NULL, 1)); break; + case DW_OP_piece: printf ("DW_OP_piece: %lu", read_leb128 (data, NULL, 0)); break; + case DW_OP_deref_size: printf ("DW_OP_deref_size: %d", byte_get (data, 1)); break; + case DW_OP_xderef_size: printf ("DW_OP_xderef_size: %d", byte_get (data, 1)); break; + case DW_OP_nop: printf ("DW_OP_nop"); break; + + default: + if (op >= DW_OP_lo_user + && op <= DW_OP_hi_user) + printf (_("(User defined location op)")); + else + printf (_("(Unknown location op)")); + break; + } +} + + static unsigned char * read_and_display_attr (attribute, form, data, pointer_size) unsigned long attribute; @@ -4135,8 +4306,9 @@ read_and_display_attr (attribute, form, data, pointer_size) unsigned char * data; unsigned long pointer_size; { - unsigned long uvalue; - int bytes_read; + unsigned long uvalue; + unsigned char * block_start; + int bytes_read; printf (" %-18s:", get_AT_name (attribute)); @@ -4198,26 +4370,30 @@ read_and_display_attr (attribute, form, data, pointer_size) case DW_FORM_block: uvalue = read_leb128 (data, & bytes_read, 0); - data = display_block (data + bytes_read, uvalue); - uvalue = * (data - uvalue); + block_start = data + bytes_read; + data = display_block (block_start, uvalue); + uvalue = * block_start; break; case DW_FORM_block1: - uvalue = byte_get (data ++, 1); - data = display_block (data, uvalue); - uvalue = * (data - uvalue); + uvalue = byte_get (data, 1); + block_start = data + 1; + data = display_block (block_start, uvalue); + uvalue = * block_start; break; case DW_FORM_block2: uvalue = byte_get (data, 2); - data = display_block (data + 2, uvalue); - uvalue = * (data - uvalue); + block_start = data + 2; + data = display_block (block_start, uvalue); + uvalue = * block_start; break; case DW_FORM_block4: uvalue = byte_get (data, 4); - data = display_block (data + 4, uvalue); - uvalue = * (data - uvalue); + block_start = data + 4; + data = display_block (block_start, uvalue); + uvalue = * block_start; break; case DW_FORM_strp: @@ -4290,6 +4466,69 @@ read_and_display_attr (attribute, form, data, pointer_size) 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_location: + printf ("("); + decode_location_expression (block_start, pointer_size); + printf (")"); + break; default: break; @@ -4306,7 +4545,8 @@ display_debug_info (section, start, file) FILE * file; { unsigned char * end = start + section->sh_size; - + unsigned char * section_begin = start; + printf (_("The section %s contains:\n\n"), SECTION_NAME (section)); while (start < end) @@ -4315,6 +4555,7 @@ display_debug_info (section, start, file) DWARF2_Internal_CompUnit compunit; unsigned char * tags; int i; + int extra = 0; external = (DWARF2_External_CompUnit *) start; @@ -4346,7 +4587,7 @@ display_debug_info (section, start, file) { Elf32_Internal_Shdr * sec; unsigned char * begin; - + /* Locate the .debug_abbrev section and process it. */ for (i = 0, sec = section_headers; i < elf_header.e_shnum; @@ -4380,7 +4621,15 @@ display_debug_info (section, start, file) tags += bytes_read; if (abbrev_number == 0) - break; + { + if (tags < start && ! extra) + { + printf (_("\n Extra data at end of comp unit:\n")); + extra = 1; + } + + continue; + } /* Scan through the abbreviation list until we reach the correct entry. */ @@ -4396,9 +4645,16 @@ display_debug_info (section, start, file) return 0; } - printf (_(" Abbrev Number: %d (%s)\n"), - abbrev_number, - get_TAG_name (entry->tag)); + if (extra) + printf (_(" %x: Abbrev Number: %d (%s)\n"), + tags - section_begin - bytes_read, + abbrev_number, + get_TAG_name (entry->tag)); + else + printf (_(" Abbrev Number: %d (%s)\n"), + abbrev_number, + get_TAG_name (entry->tag)); + for (attr = entry->first_attr; attr; attr = attr->next) tags = read_and_display_attr (attr->attribute, @@ -4496,15 +4752,18 @@ struct } debug_displays[] = { - { ".debug_info", display_debug_info }, - { ".debug_abbrev", display_debug_abbrev }, - { ".debug_line", display_debug_lines }, - { ".debug_aranges", display_debug_aranges }, - { ".debug_pubnames", display_debug_pubnames }, - { ".debug_macinfo", display_debug_not_supported }, - { ".debug_frame", display_debug_not_supported }, - { ".debug_loc", display_debug_not_supported }, - { ".debug_str", display_debug_not_supported } + { ".debug_info", display_debug_info }, + { ".debug_abbrev", display_debug_abbrev }, + { ".debug_line", display_debug_lines }, + { ".debug_aranges", display_debug_aranges }, + { ".debug_pubnames", display_debug_pubnames }, + { ".debug_macinfo", display_debug_not_supported }, + { ".debug_frame", display_debug_not_supported }, + { ".debug_str", display_debug_not_supported }, + { ".debug_static_func", display_debug_not_supported }, + { ".debug_static_vars", display_debug_not_supported }, + { ".debug_types", display_debug_not_supported }, + { ".debug_weaknames", display_debug_not_supported } }; static int diff --git a/binutils/testsuite/binutils-all/readelf.wi b/binutils/testsuite/binutils-all/readelf.wi index 1fe3b7c50d3..d620a4b29b4 100644 --- a/binutils/testsuite/binutils-all/readelf.wi +++ b/binutils/testsuite/binutils-all/readelf.wi @@ -25,7 +25,7 @@ The section .debug_info contains: Abbrev Number: 3 \(DW_TAG_base_type\) DW_AT_name : int DW_AT_byte_size : 4 - DW_AT_encoding : 5 + DW_AT_encoding : 5 \(signed\) Abbrev Number: 4 \(DW_TAG_subprogram\) DW_AT_sibling : .* DW_AT_external : 1 @@ -39,3 +39,40 @@ The section .debug_info contains: Abbrev Number: 5 \(DW_TAG_lexical_block\) DW_AT_low_pc : .* DW_AT_high_pc : .* + + Extra data at end of comp unit: + .*: Abbrev Number: 6 \(DW_TAG_variable\) + DW_AT_name : common + DW_AT_decl_file : 1 + DW_AT_decl_line : 3 + DW_AT_type : .* + DW_AT_external : 1 + DW_AT_location : 5 byte block: 3 0 0 0 0 \(DW_OP_addr: 0\) + .*: Abbrev Number: 6 \(DW_TAG_variable\) + DW_AT_name : global + DW_AT_decl_file : 1 + DW_AT_decl_line : 4 + DW_AT_type : .* + DW_AT_external : 1 + DW_AT_location : 5 byte block: 3 0 0 0 0 \(DW_OP_addr: 0\) + .*: Abbrev Number: 7 \(DW_TAG_variable\) + DW_AT_name : local + DW_AT_decl_file : 1 + DW_AT_decl_line : 5 + DW_AT_type : .* + DW_AT_location : 5 byte block: 3 0 0 0 . \(DW_OP_addr: .\) + .*: Abbrev Number: 8 \(DW_TAG_array_type\) + DW_AT_sibling : .* + DW_AT_type : .* + .*: Abbrev Number: 9 \(DW_TAG_subrange_type\) + DW_AT_upper_bound : 6 + .*: Abbrev Number: 3 \(DW_TAG_base_type\) + DW_AT_name : char + DW_AT_byte_size : 1 + DW_AT_encoding : . \(.* char\) + .*: Abbrev Number: 7 \(DW_TAG_variable\) + DW_AT_name : string + DW_AT_decl_file : 1 + DW_AT_decl_line : 6 + DW_AT_type : .* + DW_AT_location : 5 byte block: 3 0 0 0 . \(DW_OP_addr: .\)