1 2# REQUIRES: system-linux 3 4# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o 5# RUN: %clang %cflags -dwarf-4 %t1.o -o %t.exe 6# RUN: llvm-objcopy --remove-section=.debug_loc %t.exe 7# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections &> file 8# RUN: cat file | FileCheck --check-prefix=CHECK %s 9 10## Making sure we handle error returned by visitLocationList correctly. 11 12# CHECK: BOLT-WARNING: empty location list detected at 13# CHECK-NEXT: BOLT-WARNING: empty location list detected at 14# CHECK-NEXT: BOLT: 15 16# clang++ main.cpp -g -ffunction-sections -Os -gdwarf-4 -S 17# int doStuff2(int val) { 18# return val += 3; 19# } 20# 21# int main(int argc, const char** argv) { 22# return doStuff2(argc); 23# } 24 25 .text 26 .file "main.cpp" 27 .section .text._Z8doStuff2i,"ax",@progbits 28 .globl _Z8doStuff2i # -- Begin function _Z8doStuff2i 29 .type _Z8doStuff2i,@function 30_Z8doStuff2i: # @_Z8doStuff2i 31.Lfunc_begin0: 32 .file 1 "." "main.cpp" 33 .loc 1 2 0 # main.cpp:2:0 34 .cfi_startproc 35# %bb.0: # %entry 36 #DEBUG_VALUE: doStuff2:val <- $edi 37 # kill: def $edi killed $edi def $rdi 38 .loc 1 3 14 prologue_end # main.cpp:3:14 39 leal 3(%rdi), %eax 40.Ltmp0: 41 #DEBUG_VALUE: doStuff2:val <- $eax 42 .loc 1 3 3 is_stmt 0 # main.cpp:3:3 43 retq 44.Ltmp1: 45.Lfunc_end0: 46 .size _Z8doStuff2i, .Lfunc_end0-_Z8doStuff2i 47 .cfi_endproc 48 # -- End function 49 .section .text.main,"ax",@progbits 50 .globl main # -- Begin function main 51 .type main,@function 52main: # @main 53.Lfunc_begin1: 54 .loc 1 6 0 is_stmt 1 # main.cpp:6:0 55 .cfi_startproc 56# %bb.0: # %entry 57 #DEBUG_VALUE: main:argc <- $edi 58 #DEBUG_VALUE: main:argv <- $rsi 59 #DEBUG_VALUE: doStuff2:val <- $edi 60 # kill: def $edi killed $edi def $rdi 61 .loc 1 3 14 prologue_end # main.cpp:3:14 62 leal 3(%rdi), %eax 63.Ltmp2: 64 #DEBUG_VALUE: doStuff2:val <- $eax 65 .loc 1 7 3 # main.cpp:7:3 66 retq 67.Ltmp3: 68.Lfunc_end1: 69 .size main, .Lfunc_end1-main 70 .cfi_endproc 71 # -- End function 72 .section .debug_loc,"",@progbits 73.Ldebug_loc0: 74 .quad -1 75 .quad .Lfunc_begin0 # base address 76 .quad .Lfunc_begin0-.Lfunc_begin0 77 .quad .Ltmp0-.Lfunc_begin0 78 .short 1 # Loc expr size 79 .byte 85 # super-register DW_OP_reg5 80 .quad .Ltmp0-.Lfunc_begin0 81 .quad .Lfunc_end0-.Lfunc_begin0 82 .short 1 # Loc expr size 83 .byte 80 # super-register DW_OP_reg0 84 .quad 0 85 .quad 0 86.Ldebug_loc1: 87 .quad -1 88 .quad .Lfunc_begin1 # base address 89 .quad .Lfunc_begin1-.Lfunc_begin1 90 .quad .Ltmp2-.Lfunc_begin1 91 .short 1 # Loc expr size 92 .byte 85 # super-register DW_OP_reg5 93 .quad .Ltmp2-.Lfunc_begin1 94 .quad .Lfunc_end1-.Lfunc_begin1 95 .short 1 # Loc expr size 96 .byte 80 # super-register DW_OP_reg0 97 .quad 0 98 .quad 0 99 .section .debug_abbrev,"",@progbits 100 .byte 1 # Abbreviation Code 101 .byte 17 # DW_TAG_compile_unit 102 .byte 1 # DW_CHILDREN_yes 103 .byte 37 # DW_AT_producer 104 .byte 14 # DW_FORM_strp 105 .byte 19 # DW_AT_language 106 .byte 5 # DW_FORM_data2 107 .byte 3 # DW_AT_name 108 .byte 14 # DW_FORM_strp 109 .byte 16 # DW_AT_stmt_list 110 .byte 23 # DW_FORM_sec_offset 111 .byte 27 # DW_AT_comp_dir 112 .byte 14 # DW_FORM_strp 113 .byte 17 # DW_AT_low_pc 114 .byte 1 # DW_FORM_addr 115 .byte 85 # DW_AT_ranges 116 .byte 23 # DW_FORM_sec_offset 117 .byte 0 # EOM(1) 118 .byte 0 # EOM(2) 119 .byte 2 # Abbreviation Code 120 .byte 46 # DW_TAG_subprogram 121 .byte 1 # DW_CHILDREN_yes 122 .byte 17 # DW_AT_low_pc 123 .byte 1 # DW_FORM_addr 124 .byte 18 # DW_AT_high_pc 125 .byte 6 # DW_FORM_data4 126 .byte 64 # DW_AT_frame_base 127 .byte 24 # DW_FORM_exprloc 128 .ascii "\227B" # DW_AT_GNU_all_call_sites 129 .byte 25 # DW_FORM_flag_present 130 .byte 49 # DW_AT_abstract_origin 131 .byte 19 # DW_FORM_ref4 132 .byte 0 # EOM(1) 133 .byte 0 # EOM(2) 134 .byte 3 # Abbreviation Code 135 .byte 5 # DW_TAG_formal_parameter 136 .byte 0 # DW_CHILDREN_no 137 .byte 2 # DW_AT_location 138 .byte 23 # DW_FORM_sec_offset 139 .byte 49 # DW_AT_abstract_origin 140 .byte 19 # DW_FORM_ref4 141 .byte 0 # EOM(1) 142 .byte 0 # EOM(2) 143 .byte 4 # Abbreviation Code 144 .byte 46 # DW_TAG_subprogram 145 .byte 1 # DW_CHILDREN_yes 146 .byte 110 # DW_AT_linkage_name 147 .byte 14 # DW_FORM_strp 148 .byte 3 # DW_AT_name 149 .byte 14 # DW_FORM_strp 150 .byte 58 # DW_AT_decl_file 151 .byte 11 # DW_FORM_data1 152 .byte 59 # DW_AT_decl_line 153 .byte 11 # DW_FORM_data1 154 .byte 73 # DW_AT_type 155 .byte 19 # DW_FORM_ref4 156 .byte 63 # DW_AT_external 157 .byte 25 # DW_FORM_flag_present 158 .byte 32 # DW_AT_inline 159 .byte 11 # DW_FORM_data1 160 .byte 0 # EOM(1) 161 .byte 0 # EOM(2) 162 .byte 5 # Abbreviation Code 163 .byte 5 # DW_TAG_formal_parameter 164 .byte 0 # DW_CHILDREN_no 165 .byte 3 # DW_AT_name 166 .byte 14 # DW_FORM_strp 167 .byte 58 # DW_AT_decl_file 168 .byte 11 # DW_FORM_data1 169 .byte 59 # DW_AT_decl_line 170 .byte 11 # DW_FORM_data1 171 .byte 73 # DW_AT_type 172 .byte 19 # DW_FORM_ref4 173 .byte 0 # EOM(1) 174 .byte 0 # EOM(2) 175 .byte 6 # Abbreviation Code 176 .byte 36 # DW_TAG_base_type 177 .byte 0 # DW_CHILDREN_no 178 .byte 3 # DW_AT_name 179 .byte 14 # DW_FORM_strp 180 .byte 62 # DW_AT_encoding 181 .byte 11 # DW_FORM_data1 182 .byte 11 # DW_AT_byte_size 183 .byte 11 # DW_FORM_data1 184 .byte 0 # EOM(1) 185 .byte 0 # EOM(2) 186 .byte 7 # Abbreviation Code 187 .byte 46 # DW_TAG_subprogram 188 .byte 1 # DW_CHILDREN_yes 189 .byte 17 # DW_AT_low_pc 190 .byte 1 # DW_FORM_addr 191 .byte 18 # DW_AT_high_pc 192 .byte 6 # DW_FORM_data4 193 .byte 64 # DW_AT_frame_base 194 .byte 24 # DW_FORM_exprloc 195 .ascii "\227B" # DW_AT_GNU_all_call_sites 196 .byte 25 # DW_FORM_flag_present 197 .byte 3 # DW_AT_name 198 .byte 14 # DW_FORM_strp 199 .byte 58 # DW_AT_decl_file 200 .byte 11 # DW_FORM_data1 201 .byte 59 # DW_AT_decl_line 202 .byte 11 # DW_FORM_data1 203 .byte 73 # DW_AT_type 204 .byte 19 # DW_FORM_ref4 205 .byte 63 # DW_AT_external 206 .byte 25 # DW_FORM_flag_present 207 .byte 0 # EOM(1) 208 .byte 0 # EOM(2) 209 .byte 8 # Abbreviation Code 210 .byte 5 # DW_TAG_formal_parameter 211 .byte 0 # DW_CHILDREN_no 212 .byte 2 # DW_AT_location 213 .byte 24 # DW_FORM_exprloc 214 .byte 3 # DW_AT_name 215 .byte 14 # DW_FORM_strp 216 .byte 58 # DW_AT_decl_file 217 .byte 11 # DW_FORM_data1 218 .byte 59 # DW_AT_decl_line 219 .byte 11 # DW_FORM_data1 220 .byte 73 # DW_AT_type 221 .byte 19 # DW_FORM_ref4 222 .byte 0 # EOM(1) 223 .byte 0 # EOM(2) 224 .byte 9 # Abbreviation Code 225 .byte 29 # DW_TAG_inlined_subroutine 226 .byte 1 # DW_CHILDREN_yes 227 .byte 49 # DW_AT_abstract_origin 228 .byte 19 # DW_FORM_ref4 229 .byte 17 # DW_AT_low_pc 230 .byte 1 # DW_FORM_addr 231 .byte 18 # DW_AT_high_pc 232 .byte 6 # DW_FORM_data4 233 .byte 88 # DW_AT_call_file 234 .byte 11 # DW_FORM_data1 235 .byte 89 # DW_AT_call_line 236 .byte 11 # DW_FORM_data1 237 .byte 87 # DW_AT_call_column 238 .byte 11 # DW_FORM_data1 239 .byte 0 # EOM(1) 240 .byte 0 # EOM(2) 241 .byte 10 # Abbreviation Code 242 .byte 15 # DW_TAG_pointer_type 243 .byte 0 # DW_CHILDREN_no 244 .byte 73 # DW_AT_type 245 .byte 19 # DW_FORM_ref4 246 .byte 0 # EOM(1) 247 .byte 0 # EOM(2) 248 .byte 11 # Abbreviation Code 249 .byte 38 # DW_TAG_const_type 250 .byte 0 # DW_CHILDREN_no 251 .byte 73 # DW_AT_type 252 .byte 19 # DW_FORM_ref4 253 .byte 0 # EOM(1) 254 .byte 0 # EOM(2) 255 .byte 0 # EOM(3) 256 .section .debug_info,"",@progbits 257.Lcu_begin0: 258 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 259.Ldebug_info_start0: 260 .short 4 # DWARF version number 261 .long .debug_abbrev # Offset Into Abbrev. Section 262 .byte 8 # Address Size (in bytes) 263 .byte 1 # Abbrev [1] 0xb:0xc8 DW_TAG_compile_unit 264 .long .Linfo_string0 # DW_AT_producer 265 .short 33 # DW_AT_language 266 .long .Linfo_string1 # DW_AT_name 267 .long .Lline_table_start0 # DW_AT_stmt_list 268 .long .Linfo_string2 # DW_AT_comp_dir 269 .quad 0 # DW_AT_low_pc 270 .long .Ldebug_ranges0 # DW_AT_ranges 271 .byte 2 # Abbrev [2] 0x2a:0x1d DW_TAG_subprogram 272 .quad .Lfunc_begin0 # DW_AT_low_pc 273 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 274 .byte 1 # DW_AT_frame_base 275 .byte 87 276 # DW_AT_GNU_all_call_sites 277 .long 71 # DW_AT_abstract_origin 278 .byte 3 # Abbrev [3] 0x3d:0x9 DW_TAG_formal_parameter 279 .long .Ldebug_loc0 # DW_AT_location 280 .long 87 # DW_AT_abstract_origin 281 .byte 0 # End Of Children Mark 282 .byte 4 # Abbrev [4] 0x47:0x1c DW_TAG_subprogram 283 .long .Linfo_string3 # DW_AT_linkage_name 284 .long .Linfo_string4 # DW_AT_name 285 .byte 1 # DW_AT_decl_file 286 .byte 2 # DW_AT_decl_line 287 .long 99 # DW_AT_type 288 # DW_AT_external 289 .byte 1 # DW_AT_inline 290 .byte 5 # Abbrev [5] 0x57:0xb DW_TAG_formal_parameter 291 .long .Linfo_string6 # DW_AT_name 292 .byte 1 # DW_AT_decl_file 293 .byte 2 # DW_AT_decl_line 294 .long 99 # DW_AT_type 295 .byte 0 # End Of Children Mark 296 .byte 6 # Abbrev [6] 0x63:0x7 DW_TAG_base_type 297 .long .Linfo_string5 # DW_AT_name 298 .byte 5 # DW_AT_encoding 299 .byte 4 # DW_AT_byte_size 300 .byte 7 # Abbrev [7] 0x6a:0x52 DW_TAG_subprogram 301 .quad .Lfunc_begin1 # DW_AT_low_pc 302 .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc 303 .byte 1 # DW_AT_frame_base 304 .byte 87 305 # DW_AT_GNU_all_call_sites 306 .long .Linfo_string7 # DW_AT_name 307 .byte 1 # DW_AT_decl_file 308 .byte 6 # DW_AT_decl_line 309 .long 99 # DW_AT_type 310 # DW_AT_external 311 .byte 8 # Abbrev [8] 0x83:0xd DW_TAG_formal_parameter 312 .byte 1 # DW_AT_location 313 .byte 85 314 .long .Linfo_string8 # DW_AT_name 315 .byte 1 # DW_AT_decl_file 316 .byte 6 # DW_AT_decl_line 317 .long 99 # DW_AT_type 318 .byte 8 # Abbrev [8] 0x90:0xd DW_TAG_formal_parameter 319 .byte 1 # DW_AT_location 320 .byte 84 321 .long .Linfo_string9 # DW_AT_name 322 .byte 1 # DW_AT_decl_file 323 .byte 6 # DW_AT_decl_line 324 .long 188 # DW_AT_type 325 .byte 9 # Abbrev [9] 0x9d:0x1e DW_TAG_inlined_subroutine 326 .long 71 # DW_AT_abstract_origin 327 .quad .Lfunc_begin1 # DW_AT_low_pc 328 .long .Ltmp2-.Lfunc_begin1 # DW_AT_high_pc 329 .byte 1 # DW_AT_call_file 330 .byte 7 # DW_AT_call_line 331 .byte 10 # DW_AT_call_column 332 .byte 3 # Abbrev [3] 0xb1:0x9 DW_TAG_formal_parameter 333 .long .Ldebug_loc1 # DW_AT_location 334 .long 87 # DW_AT_abstract_origin 335 .byte 0 # End Of Children Mark 336 .byte 0 # End Of Children Mark 337 .byte 10 # Abbrev [10] 0xbc:0x5 DW_TAG_pointer_type 338 .long 193 # DW_AT_type 339 .byte 10 # Abbrev [10] 0xc1:0x5 DW_TAG_pointer_type 340 .long 198 # DW_AT_type 341 .byte 11 # Abbrev [11] 0xc6:0x5 DW_TAG_const_type 342 .long 203 # DW_AT_type 343 .byte 6 # Abbrev [6] 0xcb:0x7 DW_TAG_base_type 344 .long .Linfo_string10 # DW_AT_name 345 .byte 6 # DW_AT_encoding 346 .byte 1 # DW_AT_byte_size 347 .byte 0 # End Of Children Mark 348.Ldebug_info_end0: 349 .section .debug_ranges,"",@progbits 350.Ldebug_ranges0: 351 .quad .Lfunc_begin0 352 .quad .Lfunc_end0 353 .quad .Lfunc_begin1 354 .quad .Lfunc_end1 355 .quad 0 356 .quad 0 357 .section .debug_str,"MS",@progbits,1 358.Linfo_string0: 359 .asciz "clang version 15.0.0" # string offset=0 360.Linfo_string1: 361 .asciz "main.cpp" # string offset=134 362.Linfo_string2: 363 .asciz "." # string offset=143 364.Linfo_string3: 365 .asciz "_Z8doStuff2i" # string offset=181 366.Linfo_string4: 367 .asciz "doStuff2" # string offset=194 368.Linfo_string5: 369 .asciz "int" # string offset=203 370.Linfo_string6: 371 .asciz "val" # string offset=207 372.Linfo_string7: 373 .asciz "main" # string offset=211 374.Linfo_string8: 375 .asciz "argc" # string offset=216 376.Linfo_string9: 377 .asciz "argv" # string offset=221 378.Linfo_string10: 379 .asciz "char" # string offset=226 380 .ident "clang version 15.0.0" 381 .section ".note.GNU-stack","",@progbits 382 .addrsig 383 .section .debug_line,"",@progbits 384.Lline_table_start0: 385