1.ifdef GEN 2#--- a.cc 3struct t1 {}; 4extern "C" void _start(t1) {} 5#--- gen 6clang --target=x86_64-linux -S -g -gpubnames a.cc -o - 7.endif 8 .text 9 .file "a.cc" 10 .globl _start # -- Begin function _start 11 .p2align 4, 0x90 12 .type _start,@function 13_start: # @_start 14.Lfunc_begin0: 15 .file 0 "/proc/self/cwd" "a.cc" md5 0x6835f89a7d36054002b51e54e47d852e 16 .loc 0 2 0 # a.cc:2:0 17 .cfi_startproc 18# %bb.0: # %entry 19 pushq %rbp 20 .cfi_def_cfa_offset 16 21 .cfi_offset %rbp, -16 22 movq %rsp, %rbp 23 .cfi_def_cfa_register %rbp 24.Ltmp0: 25 .loc 0 2 29 prologue_end epilogue_begin # a.cc:2:29 26 popq %rbp 27 .cfi_def_cfa %rsp, 8 28 retq 29.Ltmp1: 30.Lfunc_end0: 31 .size _start, .Lfunc_end0-_start 32 .cfi_endproc 33 # -- End function 34 .section .debug_abbrev,"",@progbits 35 .byte 1 # Abbreviation Code 36 .byte 17 # DW_TAG_compile_unit 37 .byte 1 # DW_CHILDREN_yes 38 .byte 37 # DW_AT_producer 39 .byte 37 # DW_FORM_strx1 40 .byte 19 # DW_AT_language 41 .byte 5 # DW_FORM_data2 42 .byte 3 # DW_AT_name 43 .byte 37 # DW_FORM_strx1 44 .byte 114 # DW_AT_str_offsets_base 45 .byte 23 # DW_FORM_sec_offset 46 .byte 16 # DW_AT_stmt_list 47 .byte 23 # DW_FORM_sec_offset 48 .byte 27 # DW_AT_comp_dir 49 .byte 37 # DW_FORM_strx1 50 .byte 17 # DW_AT_low_pc 51 .byte 27 # DW_FORM_addrx 52 .byte 18 # DW_AT_high_pc 53 .byte 6 # DW_FORM_data4 54 .byte 115 # DW_AT_addr_base 55 .byte 23 # DW_FORM_sec_offset 56 .byte 0 # EOM(1) 57 .byte 0 # EOM(2) 58 .byte 2 # Abbreviation Code 59 .byte 46 # DW_TAG_subprogram 60 .byte 1 # DW_CHILDREN_yes 61 .byte 17 # DW_AT_low_pc 62 .byte 27 # DW_FORM_addrx 63 .byte 18 # DW_AT_high_pc 64 .byte 6 # DW_FORM_data4 65 .byte 64 # DW_AT_frame_base 66 .byte 24 # DW_FORM_exprloc 67 .byte 3 # DW_AT_name 68 .byte 37 # DW_FORM_strx1 69 .byte 58 # DW_AT_decl_file 70 .byte 11 # DW_FORM_data1 71 .byte 59 # DW_AT_decl_line 72 .byte 11 # DW_FORM_data1 73 .byte 63 # DW_AT_external 74 .byte 25 # DW_FORM_flag_present 75 .byte 0 # EOM(1) 76 .byte 0 # EOM(2) 77 .byte 3 # Abbreviation Code 78 .byte 5 # DW_TAG_formal_parameter 79 .byte 0 # DW_CHILDREN_no 80 .byte 2 # DW_AT_location 81 .byte 24 # DW_FORM_exprloc 82 .byte 58 # DW_AT_decl_file 83 .byte 11 # DW_FORM_data1 84 .byte 59 # DW_AT_decl_line 85 .byte 11 # DW_FORM_data1 86 .byte 73 # DW_AT_type 87 .byte 19 # DW_FORM_ref4 88 .byte 0 # EOM(1) 89 .byte 0 # EOM(2) 90 .byte 4 # Abbreviation Code 91 .byte 19 # DW_TAG_structure_type 92 .byte 0 # DW_CHILDREN_no 93 .byte 54 # DW_AT_calling_convention 94 .byte 11 # DW_FORM_data1 95 .byte 3 # DW_AT_name 96 .byte 37 # DW_FORM_strx1 97 .byte 11 # DW_AT_byte_size 98 .byte 11 # DW_FORM_data1 99 .byte 58 # DW_AT_decl_file 100 .byte 11 # DW_FORM_data1 101 .byte 59 # DW_AT_decl_line 102 .byte 11 # DW_FORM_data1 103 .byte 0 # EOM(1) 104 .byte 0 # EOM(2) 105 .byte 0 # EOM(3) 106 .section .debug_info,"",@progbits 107.Lcu_begin0: 108 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 109.Ldebug_info_start0: 110 .short 5 # DWARF version number 111 .byte 1 # DWARF Unit Type 112 .byte 8 # Address Size (in bytes) 113 .long .debug_abbrev # Offset Into Abbrev. Section 114 .byte 1 # Abbrev [1] 0xc:0x34 DW_TAG_compile_unit 115 .byte 0 # DW_AT_producer 116 .short 33 # DW_AT_language 117 .byte 1 # DW_AT_name 118 .long .Lstr_offsets_base0 # DW_AT_str_offsets_base 119 .long .Lline_table_start0 # DW_AT_stmt_list 120 .byte 2 # DW_AT_comp_dir 121 .byte 0 # DW_AT_low_pc 122 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 123 .long .Laddr_table_base0 # DW_AT_addr_base 124 .byte 2 # Abbrev [2] 0x23:0x16 DW_TAG_subprogram 125 .byte 0 # DW_AT_low_pc 126 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 127 .byte 1 # DW_AT_frame_base 128 .byte 86 129 .byte 3 # DW_AT_name 130 .byte 0 # DW_AT_decl_file 131 .byte 2 # DW_AT_decl_line 132 # DW_AT_external 133 .byte 3 # Abbrev [3] 0x2e:0xa DW_TAG_formal_parameter 134 .byte 2 # DW_AT_location 135 .byte 145 136 .byte 127 137 .byte 0 # DW_AT_decl_file 138 .byte 2 # DW_AT_decl_line 139 .long 57 # DW_AT_type 140 .byte 0 # End Of Children Mark 141 .byte 4 # Abbrev [4] 0x39:0x6 DW_TAG_structure_type 142 .byte 5 # DW_AT_calling_convention 143 .byte 4 # DW_AT_name 144 .byte 1 # DW_AT_byte_size 145 .byte 0 # DW_AT_decl_file 146 .byte 1 # DW_AT_decl_line 147 .byte 0 # End Of Children Mark 148.Ldebug_info_end0: 149 .section .debug_str_offsets,"",@progbits 150 .long 24 # Length of String Offsets Set 151 .short 5 152 .short 0 153.Lstr_offsets_base0: 154 .section .debug_str,"MS",@progbits,1 155.Linfo_string0: 156 .byte 0 # string offset=0 157.Linfo_string1: 158 .asciz "a.cc" # string offset=1 159.Linfo_string2: 160 .asciz "/proc/self/cwd" # string offset=6 161.Linfo_string3: 162 .asciz "_start" # string offset=21 163.Linfo_string4: 164 .asciz "t1" # string offset=28 165 .section .debug_str_offsets,"",@progbits 166 .long .Linfo_string0 167 .long .Linfo_string1 168 .long .Linfo_string2 169 .long .Linfo_string3 170 .long .Linfo_string4 171 .section .debug_addr,"",@progbits 172 .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution 173.Ldebug_addr_start0: 174 .short 5 # DWARF version number 175 .byte 8 # Address size 176 .byte 0 # Segment selector size 177.Laddr_table_base0: 178 .quad .Lfunc_begin0 179.Ldebug_addr_end0: 180 .section .debug_names,"",@progbits 181 .long .Lnames_end0-.Lnames_start0 # Header: unit length 182.Lnames_start0: 183 .short 5 # Header: version 184 .short 0 # Header: padding 185 .long 1 # Header: compilation unit count 186 .long 0 # Header: local type unit count 187 .long 0 # Header: foreign type unit count 188 .long 2 # Header: bucket count 189 .long 2 # Header: name count 190 .long .Lnames_abbrev_end0-.Lnames_abbrev_start0 # Header: abbreviation table size 191 .long 8 # Header: augmentation string size 192 .ascii "LLVM0700" # Header: augmentation string 193 .long .Lcu_begin0 # Compilation unit 0 194 .long 1 # Bucket 0 195 .long 0 # Bucket 1 196 .long 5863786 # Hash in Bucket 0 197 .long -304389582 # Hash in Bucket 0 198 .long .Linfo_string4 # String in Bucket 0: t1 199 .long .Linfo_string3 # String in Bucket 0: _start 200 .long .Lnames1-.Lnames_entries0 # Offset in Bucket 0 201 .long .Lnames0-.Lnames_entries0 # Offset in Bucket 0 202.Lnames_abbrev_start0: 203 .byte 1 # Abbrev code 204 .byte 19 # DW_TAG_structure_type 205 .byte 3 # DW_IDX_die_offset 206 .byte 19 # DW_FORM_ref4 207 .byte 4 # DW_IDX_parent 208 .byte 25 # DW_FORM_flag_present 209 .byte 0 # End of abbrev 210 .byte 0 # End of abbrev 211 .byte 2 # Abbrev code 212 .byte 46 # DW_TAG_subprogram 213 .byte 3 # DW_IDX_die_offset 214 .byte 19 # DW_FORM_ref4 215 .byte 4 # DW_IDX_parent 216 .byte 25 # DW_FORM_flag_present 217 .byte 0 # End of abbrev 218 .byte 0 # End of abbrev 219 .byte 0 # End of abbrev list 220.Lnames_abbrev_end0: 221.Lnames_entries0: 222.Lnames1: 223.L1: 224 .byte 1 # Abbreviation code 225 .long 57 # DW_IDX_die_offset 226 .byte 0 # DW_IDX_parent 227 # End of list: t1 228.Lnames0: 229.L0: 230 .byte 2 # Abbreviation code 231 .long 35 # DW_IDX_die_offset 232 .byte 0 # DW_IDX_parent 233 # End of list: _start 234 .p2align 2, 0x0 235.Lnames_end0: 236 .section ".note.GNU-stack","",@progbits 237 .addrsig 238 .section .debug_line,"",@progbits 239.Lline_table_start0: 240