1 2# REQUIRES: system-linux 3 4# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o 5# RUN: %clang %cflags -dwarf-5 %tmain.o -o %t.exe -Wl,-q 6# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections 7# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s 8 9# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt 10# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt 11# RUN: llvm-objdump -d %t.bolt >> %t.txt 12# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s 13 14## This test checks that we correctly handle DW_AT_low_pc [DW_FORM_addrx] that is part of DW_TAG_label. 15 16# PRECHECK: version = 0x0005 17# PRECHECK: DW_TAG_label 18# PRECHECK-NEXT: DW_AT_name 19# PRECHECK-NEXT: DW_AT_decl_file 20# PRECHECK-NEXT: DW_AT_decl_line 21# PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000001) 22# PRECHECK: DW_TAG_label 23# PRECHECK-NEXT: DW_AT_name 24# PRECHECK-NEXT: DW_AT_decl_file 25# PRECHECK-NEXT: DW_AT_decl_line 26# PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000002) 27 28 29# POSTCHECK: Addrs: [ 30# POSTCHECK-NEXT: 0x 31# POSTCHECK-NEXT: 0x 32# POSTCHECK-NEXT: 0x[[ADDR:[1-9a-f]*]] 33# POSTCHECK-NEXT: 0x[[ADDR2:[1-9a-f]*]] 34 35# POSTCHECK: version = 0x0005 36# POSTCHECK: DW_TAG_label 37# POSTCHECK-NEXT: DW_AT_name 38# POSTCHECK-NEXT: DW_AT_decl_file 39# POSTCHECK-NEXT: DW_AT_decl_line 40# POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000002) 41# POSTCHECK-SAME: 0x[[ADDR]] 42# POSTCHECK: DW_TAG_label 43# POSTCHECK-NEXT: DW_AT_name 44# POSTCHECK-NEXT: DW_AT_decl_file 45# POSTCHECK-NEXT: DW_AT_decl_line 46# POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000003) 47# POSTCHECK-SAME: 0x[[ADDR2]] 48 49# POSTCHECK: [[ADDR]]: 8b 45 f8 50# POSTCHECK: [[ADDR2]]: 8b 45 f8 51 52## clang++ main.cpp -g -S 53## int main() { 54## int a = 4; 55## if (a == 5) 56## goto LABEL1; 57## else 58## goto LABEL2; 59## LABEL1:a++; 60## LABEL2:a--; 61## return 0; 62## } 63 64 .text 65 .file "main.cpp" 66 .globl main # -- Begin function main 67 .p2align 4, 0x90 68 .type main,@function 69main: # @main 70.Lfunc_begin0: 71 .file 0 "/testLabel" "main.cpp" md5 0xa0bd66020d06f1303de7008e3c542050 72 .loc 0 1 0 # main.cpp:1:0 73 .cfi_startproc 74# %bb.0: # %entry 75 pushq %rbp 76 .cfi_def_cfa_offset 16 77 .cfi_offset %rbp, -16 78 movq %rsp, %rbp 79 .cfi_def_cfa_register %rbp 80 movl $0, -4(%rbp) 81.Ltmp0: 82 .loc 0 2 7 prologue_end # main.cpp:2:7 83 movl $4, -8(%rbp) 84.Ltmp1: 85 .loc 0 3 9 # main.cpp:3:9 86 cmpl $5, -8(%rbp) 87.Ltmp2: 88 .loc 0 3 7 is_stmt 0 # main.cpp:3:7 89 jne .LBB0_2 90# %bb.1: # %if.then 91.Ltmp3: 92 .loc 0 4 5 is_stmt 1 # main.cpp:4:5 93 jmp .LBB0_3 94.LBB0_2: # %if.else 95 .loc 0 6 5 # main.cpp:6:5 96 jmp .LBB0_4 97.Ltmp4: 98.LBB0_3: # %LABEL1 99 #DEBUG_LABEL: main:LABEL1 100 .loc 0 7 11 # main.cpp:7:11 101 movl -8(%rbp), %eax 102 addl $1, %eax 103 movl %eax, -8(%rbp) 104.LBB0_4: # %LABEL2 105.Ltmp5: 106 #DEBUG_LABEL: main:LABEL2 107 .loc 0 8 11 # main.cpp:8:11 108 movl -8(%rbp), %eax 109 addl $-1, %eax 110 movl %eax, -8(%rbp) 111 .loc 0 9 3 # main.cpp:9:3 112 xorl %eax, %eax 113 popq %rbp 114 .cfi_def_cfa %rsp, 8 115 retq 116.Ltmp6: 117.Lfunc_end0: 118 .size main, .Lfunc_end0-main 119 .cfi_endproc 120 # -- End function 121 .section .debug_abbrev,"",@progbits 122 .byte 1 # Abbreviation Code 123 .byte 17 # DW_TAG_compile_unit 124 .byte 1 # DW_CHILDREN_yes 125 .byte 37 # DW_AT_producer 126 .byte 37 # DW_FORM_strx1 127 .byte 19 # DW_AT_language 128 .byte 5 # DW_FORM_data2 129 .byte 3 # DW_AT_name 130 .byte 37 # DW_FORM_strx1 131 .byte 114 # DW_AT_str_offsets_base 132 .byte 23 # DW_FORM_sec_offset 133 .byte 16 # DW_AT_stmt_list 134 .byte 23 # DW_FORM_sec_offset 135 .byte 27 # DW_AT_comp_dir 136 .byte 37 # DW_FORM_strx1 137 .byte 17 # DW_AT_low_pc 138 .byte 27 # DW_FORM_addrx 139 .byte 18 # DW_AT_high_pc 140 .byte 6 # DW_FORM_data4 141 .byte 115 # DW_AT_addr_base 142 .byte 23 # DW_FORM_sec_offset 143 .byte 0 # EOM(1) 144 .byte 0 # EOM(2) 145 .byte 2 # Abbreviation Code 146 .byte 46 # DW_TAG_subprogram 147 .byte 1 # DW_CHILDREN_yes 148 .byte 17 # DW_AT_low_pc 149 .byte 27 # DW_FORM_addrx 150 .byte 18 # DW_AT_high_pc 151 .byte 6 # DW_FORM_data4 152 .byte 64 # DW_AT_frame_base 153 .byte 24 # DW_FORM_exprloc 154 .byte 3 # DW_AT_name 155 .byte 37 # DW_FORM_strx1 156 .byte 58 # DW_AT_decl_file 157 .byte 11 # DW_FORM_data1 158 .byte 59 # DW_AT_decl_line 159 .byte 11 # DW_FORM_data1 160 .byte 73 # DW_AT_type 161 .byte 19 # DW_FORM_ref4 162 .byte 63 # DW_AT_external 163 .byte 25 # DW_FORM_flag_present 164 .byte 0 # EOM(1) 165 .byte 0 # EOM(2) 166 .byte 3 # Abbreviation Code 167 .byte 52 # DW_TAG_variable 168 .byte 0 # DW_CHILDREN_no 169 .byte 2 # DW_AT_location 170 .byte 24 # DW_FORM_exprloc 171 .byte 3 # DW_AT_name 172 .byte 37 # DW_FORM_strx1 173 .byte 58 # DW_AT_decl_file 174 .byte 11 # DW_FORM_data1 175 .byte 59 # DW_AT_decl_line 176 .byte 11 # DW_FORM_data1 177 .byte 73 # DW_AT_type 178 .byte 19 # DW_FORM_ref4 179 .byte 0 # EOM(1) 180 .byte 0 # EOM(2) 181 .byte 4 # Abbreviation Code 182 .byte 10 # DW_TAG_label 183 .byte 0 # DW_CHILDREN_no 184 .byte 3 # DW_AT_name 185 .byte 37 # DW_FORM_strx1 186 .byte 58 # DW_AT_decl_file 187 .byte 11 # DW_FORM_data1 188 .byte 59 # DW_AT_decl_line 189 .byte 11 # DW_FORM_data1 190 .byte 17 # DW_AT_low_pc 191 .byte 27 # DW_FORM_addrx 192 .byte 0 # EOM(1) 193 .byte 0 # EOM(2) 194 .byte 5 # Abbreviation Code 195 .byte 36 # DW_TAG_base_type 196 .byte 0 # DW_CHILDREN_no 197 .byte 3 # DW_AT_name 198 .byte 37 # DW_FORM_strx1 199 .byte 62 # DW_AT_encoding 200 .byte 11 # DW_FORM_data1 201 .byte 11 # DW_AT_byte_size 202 .byte 11 # DW_FORM_data1 203 .byte 0 # EOM(1) 204 .byte 0 # EOM(2) 205 .byte 0 # EOM(3) 206 .section .debug_info,"",@progbits 207.Lcu_begin0: 208 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 209.Ldebug_info_start0: 210 .short 5 # DWARF version number 211 .byte 1 # DWARF Unit Type 212 .byte 8 # Address Size (in bytes) 213 .long .debug_abbrev # Offset Into Abbrev. Section 214 .byte 1 # Abbrev [1] 0xc:0x41 DW_TAG_compile_unit 215 .byte 0 # DW_AT_producer 216 .short 33 # DW_AT_language 217 .byte 1 # DW_AT_name 218 .long .Lstr_offsets_base0 # DW_AT_str_offsets_base 219 .long .Lline_table_start0 # DW_AT_stmt_list 220 .byte 2 # DW_AT_comp_dir 221 .byte 0 # DW_AT_low_pc 222 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 223 .long .Laddr_table_base0 # DW_AT_addr_base 224 .byte 2 # Abbrev [2] 0x23:0x25 DW_TAG_subprogram 225 .byte 0 # DW_AT_low_pc 226 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 227 .byte 1 # DW_AT_frame_base 228 .byte 86 229 .byte 3 # DW_AT_name 230 .byte 0 # DW_AT_decl_file 231 .byte 1 # DW_AT_decl_line 232 .long 72 # DW_AT_type 233 # DW_AT_external 234 .byte 3 # Abbrev [3] 0x32:0xb DW_TAG_variable 235 .byte 2 # DW_AT_location 236 .byte 145 237 .byte 120 238 .byte 5 # DW_AT_name 239 .byte 0 # DW_AT_decl_file 240 .byte 2 # DW_AT_decl_line 241 .long 72 # DW_AT_type 242 .byte 4 # Abbrev [4] 0x3d:0x5 DW_TAG_label 243 .byte 6 # DW_AT_name 244 .byte 0 # DW_AT_decl_file 245 .byte 7 # DW_AT_decl_line 246 .byte 1 # DW_AT_low_pc 247 .byte 4 # Abbrev [4] 0x42:0x5 DW_TAG_label 248 .byte 7 # DW_AT_name 249 .byte 0 # DW_AT_decl_file 250 .byte 8 # DW_AT_decl_line 251 .byte 2 # DW_AT_low_pc 252 .byte 0 # End Of Children Mark 253 .byte 5 # Abbrev [5] 0x48:0x4 DW_TAG_base_type 254 .byte 4 # DW_AT_name 255 .byte 5 # DW_AT_encoding 256 .byte 4 # DW_AT_byte_size 257 .byte 0 # End Of Children Mark 258.Ldebug_info_end0: 259 .section .debug_str_offsets,"",@progbits 260 .long 36 # Length of String Offsets Set 261 .short 5 262 .short 0 263.Lstr_offsets_base0: 264 .section .debug_str,"MS",@progbits,1 265.Linfo_string0: 266 .asciz "clang version 15.0.0" # string offset=0 267.Linfo_string1: 268 .asciz "main.cpp" # string offset=134 269.Linfo_string2: 270 .asciz "/testLabel" # string offset=143 271.Linfo_string3: 272 .asciz "main" # string offset=190 273.Linfo_string4: 274 .asciz "int" # string offset=195 275.Linfo_string5: 276 .asciz "a" # string offset=199 277.Linfo_string6: 278 .asciz "LABEL1" # string offset=201 279.Linfo_string7: 280 .asciz "LABEL2" # string offset=208 281 .section .debug_str_offsets,"",@progbits 282 .long .Linfo_string0 283 .long .Linfo_string1 284 .long .Linfo_string2 285 .long .Linfo_string3 286 .long .Linfo_string4 287 .long .Linfo_string5 288 .long .Linfo_string6 289 .long .Linfo_string7 290 .section .debug_addr,"",@progbits 291 .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution 292.Ldebug_addr_start0: 293 .short 5 # DWARF version number 294 .byte 8 # Address size 295 .byte 0 # Segment selector size 296.Laddr_table_base0: 297 .quad .Lfunc_begin0 298 .quad .Ltmp4 299 .quad .Ltmp5 300.Ldebug_addr_end0: 301 .ident "clang version 15.0.0" 302 .section ".note.GNU-stack","",@progbits 303 .addrsig 304 .section .debug_line,"",@progbits 305.Lline_table_start0: 306