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1## Check that the --debug-vars option works for simple register locations, when2## using DWARF4 debug info, with multiple functions in one section.3 4## Generated with this compile command and source code:5## clang --target=arm--none-eabi -march=armv7-a -c debug.c -O1 -gdwarf-3 -S -o -6 7## clang --target=powerpc64-unknown-linux -c debug.c -O1 -S -o -8 9## int foo(int a, int b, int c) {10## int x = a + b;11## int y = x + c;12## return y;13## }14##15## int bar(int a) {16## a++;17## return a;18## }19 20# RUN: llvm-mc -triple powerpc64-unknown-linux < %s -filetype=obj | \21# RUN: llvm-objdump - -d --debug-vars --no-show-raw-insn | \22# RUN: FileCheck %s23 24# CHECK: Disassembly of section .text:25# CHECK-EMPTY:26# CHECK-NEXT: 0000000000000000 <.text>:27# CHECK-NEXT: ┠─ a = S328# CHECK-NEXT: ┃ ┠─ b = S429# CHECK-NEXT: ┃ ┃ ┠─ c = S530# CHECK-NEXT: ┃ ┃ ┃ ┌─ x = S331# CHECK-NEXT: 0: add 3, 4, 3 ┻ ┃ ┃ ╈32# CHECK-NEXT: ┌─ y = S333# CHECK-NEXT: 4: add 3, 3, 5 ╈ ┃ ┃ ┻34# CHECK-NEXT: 8: extsw 3, 3 ┻ ┃ ┃35# CHECK-NEXT: c: blr ┃ ┃36# CHECK-NEXT: ...37# CHECK-NEXT: ┠─ a = S338# CHECK-NEXT: 1c: addi 3, 3, 1 ┃39# CHECK-NEXT: 20: extsw 3, 3 ┻40# CHECK-NEXT: 24: blr41# CHECK-NEXT: ...42 43 .text44 .file "debug.c"45 .globl foo # -- Begin function foo46 .p2align 247 .type foo,@function48 .section .opd,"aw",@progbits49foo: # @foo50 .p2align 351 .quad .Lfunc_begin052 .quad .TOC.@tocbase53 .quad 054 .text55.Lfunc_begin0:56 .file 1 "/work" "llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c"57 .loc 1 1 0 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:1:058 .cfi_sections .debug_frame59 .cfi_startproc60# %bb.0: # %entry61 #DEBUG_VALUE: foo:a <- $x362 #DEBUG_VALUE: foo:a <- $r363 #DEBUG_VALUE: foo:b <- $x464 #DEBUG_VALUE: foo:b <- $x465 #DEBUG_VALUE: foo:b <- $r466 #DEBUG_VALUE: foo:c <- $x567 #DEBUG_VALUE: foo:c <- $x568 #DEBUG_VALUE: foo:c <- $r569 .loc 1 2 13 prologue_end # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:2:1370 add 3, 4, 371.Ltmp0:72 #DEBUG_VALUE: foo:x <- $r373 .loc 1 3 13 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:3:1374 add 3, 3, 575.Ltmp1:76 #DEBUG_VALUE: foo:y <- $r377 .loc 1 4 3 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:4:378 extsw 3, 379.Ltmp2:80 blr81.Ltmp3:82 .long 083 .quad 084.Lfunc_end0:85 .size foo, .Lfunc_end0-.Lfunc_begin086 .cfi_endproc87 # -- End function88 .globl bar # -- Begin function bar89 .p2align 290 .type bar,@function91 .section .opd,"aw",@progbits92bar: # @bar93 .p2align 394 .quad .Lfunc_begin195 .quad .TOC.@tocbase96 .quad 097 .text98.Lfunc_begin1:99 .loc 1 7 0 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:7:0100 .cfi_startproc101# %bb.0: # %entry102 #DEBUG_VALUE: bar:a <- $x3103 #DEBUG_VALUE: bar:a <- $r3104 .loc 1 8 4 prologue_end # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:8:4105 addi 3, 3, 1106.Ltmp4:107 #DEBUG_VALUE: bar:a <- $r3108 .loc 1 9 3 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:9:3109 extsw 3, 3110.Ltmp5:111 blr112.Ltmp6:113 .long 0114 .quad 0115.Lfunc_end1:116 .size bar, .Lfunc_end1-.Lfunc_begin1117 .cfi_endproc118 # -- End function119 .section .debug_str,"MS",@progbits,1120.Linfo_string0:121 .asciz "clang version 10.0.0 (git@github.com:llvm/llvm-project.git e73f78acd34360f7450b81167d9dc858ccddc262)" # string offset=0122.Linfo_string1:123 .asciz "/work/llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c" # string offset=101124.Linfo_string2:125 .asciz "/work/scratch" # string offset=164126.Linfo_string3:127 .asciz "foo" # string offset=178128.Linfo_string4:129 .asciz "int" # string offset=182130.Linfo_string5:131 .asciz "bar" # string offset=186132.Linfo_string6:133 .asciz "a" # string offset=190134.Linfo_string7:135 .asciz "b" # string offset=192136.Linfo_string8:137 .asciz "c" # string offset=194138.Linfo_string9:139 .asciz "x" # string offset=196140.Linfo_string10:141 .asciz "y" # string offset=198142 .section .debug_loc,"",@progbits143.Ldebug_loc0:144 .quad .Lfunc_begin0-.Lfunc_begin0145 .quad .Ltmp0-.Lfunc_begin0146 .short 3 # Loc expr size147 .byte 144 # super-register DW_OP_regx148 .byte 179 # 1203149 .byte 9 #150 .quad 0151 .quad 0152.Ldebug_loc1:153 .quad .Ltmp0-.Lfunc_begin0154 .quad .Ltmp1-.Lfunc_begin0155 .short 3 # Loc expr size156 .byte 144 # super-register DW_OP_regx157 .byte 179 # 1203158 .byte 9 #159 .quad 0160 .quad 0161.Ldebug_loc2:162 .quad .Ltmp1-.Lfunc_begin0163 .quad .Ltmp2-.Lfunc_begin0164 .short 3 # Loc expr size165 .byte 144 # super-register DW_OP_regx166 .byte 179 # 1203167 .byte 9 #168 .quad 0169 .quad 0170.Ldebug_loc3:171 .quad .Lfunc_begin1-.Lfunc_begin0172 .quad .Ltmp5-.Lfunc_begin0173 .short 3 # Loc expr size174 .byte 144 # super-register DW_OP_regx175 .byte 179 # 1203176 .byte 9 #177 .quad 0178 .quad 0179 .section .debug_abbrev,"",@progbits180 .byte 1 # Abbreviation Code181 .byte 17 # DW_TAG_compile_unit182 .byte 1 # DW_CHILDREN_yes183 .byte 37 # DW_AT_producer184 .byte 14 # DW_FORM_strp185 .byte 19 # DW_AT_language186 .byte 5 # DW_FORM_data2187 .byte 3 # DW_AT_name188 .byte 14 # DW_FORM_strp189 .byte 16 # DW_AT_stmt_list190 .byte 23 # DW_FORM_sec_offset191 .byte 27 # DW_AT_comp_dir192 .byte 14 # DW_FORM_strp193 .byte 17 # DW_AT_low_pc194 .byte 1 # DW_FORM_addr195 .byte 18 # DW_AT_high_pc196 .byte 6 # DW_FORM_data4197 .byte 0 # EOM(1)198 .byte 0 # EOM(2)199 .byte 2 # Abbreviation Code200 .byte 46 # DW_TAG_subprogram201 .byte 1 # DW_CHILDREN_yes202 .byte 17 # DW_AT_low_pc203 .byte 1 # DW_FORM_addr204 .byte 18 # DW_AT_high_pc205 .byte 6 # DW_FORM_data4206 .byte 64 # DW_AT_frame_base207 .byte 24 # DW_FORM_exprloc208 .ascii "\227B" # DW_AT_GNU_all_call_sites209 .byte 25 # DW_FORM_flag_present210 .byte 3 # DW_AT_name211 .byte 14 # DW_FORM_strp212 .byte 58 # DW_AT_decl_file213 .byte 11 # DW_FORM_data1214 .byte 59 # DW_AT_decl_line215 .byte 11 # DW_FORM_data1216 .byte 39 # DW_AT_prototyped217 .byte 25 # DW_FORM_flag_present218 .byte 73 # DW_AT_type219 .byte 19 # DW_FORM_ref4220 .byte 63 # DW_AT_external221 .byte 25 # DW_FORM_flag_present222 .byte 0 # EOM(1)223 .byte 0 # EOM(2)224 .byte 3 # Abbreviation Code225 .byte 5 # DW_TAG_formal_parameter226 .byte 0 # DW_CHILDREN_no227 .byte 2 # DW_AT_location228 .byte 23 # DW_FORM_sec_offset229 .byte 3 # DW_AT_name230 .byte 14 # DW_FORM_strp231 .byte 58 # DW_AT_decl_file232 .byte 11 # DW_FORM_data1233 .byte 59 # DW_AT_decl_line234 .byte 11 # DW_FORM_data1235 .byte 73 # DW_AT_type236 .byte 19 # DW_FORM_ref4237 .byte 0 # EOM(1)238 .byte 0 # EOM(2)239 .byte 4 # Abbreviation Code240 .byte 5 # DW_TAG_formal_parameter241 .byte 0 # DW_CHILDREN_no242 .byte 2 # DW_AT_location243 .byte 24 # DW_FORM_exprloc244 .byte 3 # DW_AT_name245 .byte 14 # DW_FORM_strp246 .byte 58 # DW_AT_decl_file247 .byte 11 # DW_FORM_data1248 .byte 59 # DW_AT_decl_line249 .byte 11 # DW_FORM_data1250 .byte 73 # DW_AT_type251 .byte 19 # DW_FORM_ref4252 .byte 0 # EOM(1)253 .byte 0 # EOM(2)254 .byte 5 # Abbreviation Code255 .byte 52 # DW_TAG_variable256 .byte 0 # DW_CHILDREN_no257 .byte 2 # DW_AT_location258 .byte 23 # DW_FORM_sec_offset259 .byte 3 # DW_AT_name260 .byte 14 # DW_FORM_strp261 .byte 58 # DW_AT_decl_file262 .byte 11 # DW_FORM_data1263 .byte 59 # DW_AT_decl_line264 .byte 11 # DW_FORM_data1265 .byte 73 # DW_AT_type266 .byte 19 # DW_FORM_ref4267 .byte 0 # EOM(1)268 .byte 0 # EOM(2)269 .byte 6 # Abbreviation Code270 .byte 36 # DW_TAG_base_type271 .byte 0 # DW_CHILDREN_no272 .byte 3 # DW_AT_name273 .byte 14 # DW_FORM_strp274 .byte 62 # DW_AT_encoding275 .byte 11 # DW_FORM_data1276 .byte 11 # DW_AT_byte_size277 .byte 11 # DW_FORM_data1278 .byte 0 # EOM(1)279 .byte 0 # EOM(2)280 .byte 0 # EOM(3)281 .section .debug_info,"",@progbits282.Lcu_begin0:283 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit284.Ldebug_info_start0:285 .short 4 # DWARF version number286 .long .debug_abbrev # Offset Into Abbrev. Section287 .byte 8 # Address Size (in bytes)288 .byte 1 # Abbrev [1] 0xb:0xb5 DW_TAG_compile_unit289 .long .Linfo_string0 # DW_AT_producer290 .short 12 # DW_AT_language291 .long .Linfo_string1 # DW_AT_name292 .long .Lline_table_start0 # DW_AT_stmt_list293 .long .Linfo_string2 # DW_AT_comp_dir294 .quad .Lfunc_begin0 # DW_AT_low_pc295 .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc296 .byte 2 # Abbrev [2] 0x2a:0x65 DW_TAG_subprogram297 .quad .Lfunc_begin0 # DW_AT_low_pc298 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc299 .byte 1 # DW_AT_frame_base300 .byte 81301 # DW_AT_GNU_all_call_sites302 .long .Linfo_string3 # DW_AT_name303 .byte 1 # DW_AT_decl_file304 .byte 1 # DW_AT_decl_line305 # DW_AT_prototyped306 .long 184 # DW_AT_type307 # DW_AT_external308 .byte 3 # Abbrev [3] 0x43:0xf DW_TAG_formal_parameter309 .long .Ldebug_loc0 # DW_AT_location310 .long .Linfo_string6 # DW_AT_name311 .byte 1 # DW_AT_decl_file312 .byte 1 # DW_AT_decl_line313 .long 184 # DW_AT_type314 .byte 4 # Abbrev [4] 0x52:0xf DW_TAG_formal_parameter315 .byte 3 # DW_AT_location316 .byte 144317 .ascii "\264\t"318 .long .Linfo_string7 # DW_AT_name319 .byte 1 # DW_AT_decl_file320 .byte 1 # DW_AT_decl_line321 .long 184 # DW_AT_type322 .byte 4 # Abbrev [4] 0x61:0xf DW_TAG_formal_parameter323 .byte 3 # DW_AT_location324 .byte 144325 .ascii "\265\t"326 .long .Linfo_string8 # DW_AT_name327 .byte 1 # DW_AT_decl_file328 .byte 1 # DW_AT_decl_line329 .long 184 # DW_AT_type330 .byte 5 # Abbrev [5] 0x70:0xf DW_TAG_variable331 .long .Ldebug_loc1 # DW_AT_location332 .long .Linfo_string9 # DW_AT_name333 .byte 1 # DW_AT_decl_file334 .byte 2 # DW_AT_decl_line335 .long 184 # DW_AT_type336 .byte 5 # Abbrev [5] 0x7f:0xf DW_TAG_variable337 .long .Ldebug_loc2 # DW_AT_location338 .long .Linfo_string10 # DW_AT_name339 .byte 1 # DW_AT_decl_file340 .byte 3 # DW_AT_decl_line341 .long 184 # DW_AT_type342 .byte 0 # End Of Children Mark343 .byte 2 # Abbrev [2] 0x8f:0x29 DW_TAG_subprogram344 .quad .Lfunc_begin1 # DW_AT_low_pc345 .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc346 .byte 1 # DW_AT_frame_base347 .byte 81348 # DW_AT_GNU_all_call_sites349 .long .Linfo_string5 # DW_AT_name350 .byte 1 # DW_AT_decl_file351 .byte 7 # DW_AT_decl_line352 # DW_AT_prototyped353 .long 184 # DW_AT_type354 # DW_AT_external355 .byte 3 # Abbrev [3] 0xa8:0xf DW_TAG_formal_parameter356 .long .Ldebug_loc3 # DW_AT_location357 .long .Linfo_string6 # DW_AT_name358 .byte 1 # DW_AT_decl_file359 .byte 7 # DW_AT_decl_line360 .long 184 # DW_AT_type361 .byte 0 # End Of Children Mark362 .byte 6 # Abbrev [6] 0xb8:0x7 DW_TAG_base_type363 .long .Linfo_string4 # DW_AT_name364 .byte 5 # DW_AT_encoding365 .byte 4 # DW_AT_byte_size366 .byte 0 # End Of Children Mark367.Ldebug_info_end0:368 .ident "clang version 10.0.0 (git@github.com:llvm/llvm-project.git e73f78acd34360f7450b81167d9dc858ccddc262)"369 .section ".note.GNU-stack","",@progbits370 .addrsig371 .section .debug_line,"",@progbits372.Lline_table_start0:373