## Check that the --debug-vars option works for simple register locations, when ## using DWARF4 debug info, with multiple functions in one section. ## Generated with this compile command and source code: ## clang --target=arm--none-eabi -march=armv7-a -c debug.c -O1 -gdwarf-3 -S -o - ## clang --target=powerpc64-unknown-linux -c debug.c -O1 -S -o - ## int foo(int a, int b, int c) { ## int x = a + b; ## int y = x + c; ## return y; ## } ## ## int bar(int a) { ## a++; ## return a; ## } # RUN: llvm-mc -triple powerpc64-unknown-linux < %s -filetype=obj | \ # RUN: llvm-objdump - -d --debug-vars --no-show-raw-insn | \ # RUN: FileCheck %s # CHECK: Disassembly of section .text: # CHECK-EMPTY: # CHECK-NEXT: 0000000000000000 <.text>: # CHECK-NEXT: ┠─ a = S3 # CHECK-NEXT: ┃ ┠─ b = S4 # CHECK-NEXT: ┃ ┃ ┠─ c = S5 # CHECK-NEXT: ┃ ┃ ┃ ┌─ x = S3 # CHECK-NEXT: 0: add 3, 4, 3 ┻ ┃ ┃ ╈ # CHECK-NEXT: ┌─ y = S3 # CHECK-NEXT: 4: add 3, 3, 5 ╈ ┃ ┃ ┻ # CHECK-NEXT: 8: extsw 3, 3 ┻ ┃ ┃ # CHECK-NEXT: c: blr ┃ ┃ # CHECK-NEXT: ... # CHECK-NEXT: ┠─ a = S3 # CHECK-NEXT: 1c: addi 3, 3, 1 ┃ # CHECK-NEXT: 20: extsw 3, 3 ┻ # CHECK-NEXT: 24: blr # CHECK-NEXT: ... .text .file "debug.c" .globl foo # -- Begin function foo .p2align 2 .type foo,@function .section .opd,"aw",@progbits foo: # @foo .p2align 3 .quad .Lfunc_begin0 .quad .TOC.@tocbase .quad 0 .text .Lfunc_begin0: .file 1 "/work" "llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c" .loc 1 1 0 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:1:0 .cfi_sections .debug_frame .cfi_startproc # %bb.0: # %entry #DEBUG_VALUE: foo:a <- $x3 #DEBUG_VALUE: foo:a <- $r3 #DEBUG_VALUE: foo:b <- $x4 #DEBUG_VALUE: foo:b <- $x4 #DEBUG_VALUE: foo:b <- $r4 #DEBUG_VALUE: foo:c <- $x5 #DEBUG_VALUE: foo:c <- $x5 #DEBUG_VALUE: foo:c <- $r5 .loc 1 2 13 prologue_end # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:2:13 add 3, 4, 3 .Ltmp0: #DEBUG_VALUE: foo:x <- $r3 .loc 1 3 13 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:3:13 add 3, 3, 5 .Ltmp1: #DEBUG_VALUE: foo:y <- $r3 .loc 1 4 3 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:4:3 extsw 3, 3 .Ltmp2: blr .Ltmp3: .long 0 .quad 0 .Lfunc_end0: .size foo, .Lfunc_end0-.Lfunc_begin0 .cfi_endproc # -- End function .globl bar # -- Begin function bar .p2align 2 .type bar,@function .section .opd,"aw",@progbits bar: # @bar .p2align 3 .quad .Lfunc_begin1 .quad .TOC.@tocbase .quad 0 .text .Lfunc_begin1: .loc 1 7 0 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:7:0 .cfi_startproc # %bb.0: # %entry #DEBUG_VALUE: bar:a <- $x3 #DEBUG_VALUE: bar:a <- $r3 .loc 1 8 4 prologue_end # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:8:4 addi 3, 3, 1 .Ltmp4: #DEBUG_VALUE: bar:a <- $r3 .loc 1 9 3 # llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c:9:3 extsw 3, 3 .Ltmp5: blr .Ltmp6: .long 0 .quad 0 .Lfunc_end1: .size bar, .Lfunc_end1-.Lfunc_begin1 .cfi_endproc # -- End function .section .debug_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang version 10.0.0 (git@github.com:llvm/llvm-project.git e73f78acd34360f7450b81167d9dc858ccddc262)" # string offset=0 .Linfo_string1: .asciz "/work/llvm/src/llvm/test/tools/llvm-objdump/ARM/Inputs/debug.c" # string offset=101 .Linfo_string2: .asciz "/work/scratch" # string offset=164 .Linfo_string3: .asciz "foo" # string offset=178 .Linfo_string4: .asciz "int" # string offset=182 .Linfo_string5: .asciz "bar" # string offset=186 .Linfo_string6: .asciz "a" # string offset=190 .Linfo_string7: .asciz "b" # string offset=192 .Linfo_string8: .asciz "c" # string offset=194 .Linfo_string9: .asciz "x" # string offset=196 .Linfo_string10: .asciz "y" # string offset=198 .section .debug_loc,"",@progbits .Ldebug_loc0: .quad .Lfunc_begin0-.Lfunc_begin0 .quad .Ltmp0-.Lfunc_begin0 .short 3 # Loc expr size .byte 144 # super-register DW_OP_regx .byte 179 # 1203 .byte 9 # .quad 0 .quad 0 .Ldebug_loc1: .quad .Ltmp0-.Lfunc_begin0 .quad .Ltmp1-.Lfunc_begin0 .short 3 # Loc expr size .byte 144 # super-register DW_OP_regx .byte 179 # 1203 .byte 9 # .quad 0 .quad 0 .Ldebug_loc2: .quad .Ltmp1-.Lfunc_begin0 .quad .Ltmp2-.Lfunc_begin0 .short 3 # Loc expr size .byte 144 # super-register DW_OP_regx .byte 179 # 1203 .byte 9 # .quad 0 .quad 0 .Ldebug_loc3: .quad .Lfunc_begin1-.Lfunc_begin0 .quad .Ltmp5-.Lfunc_begin0 .short 3 # Loc expr size .byte 144 # super-register DW_OP_regx .byte 179 # 1203 .byte 9 # .quad 0 .quad 0 .section .debug_abbrev,"",@progbits .byte 1 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 37 # DW_AT_producer .byte 14 # DW_FORM_strp .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 14 # DW_FORM_strp .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 2 # Abbreviation Code .byte 46 # DW_TAG_subprogram .byte 1 # DW_CHILDREN_yes .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 64 # DW_AT_frame_base .byte 24 # DW_FORM_exprloc .ascii "\227B" # DW_AT_GNU_all_call_sites .byte 25 # DW_FORM_flag_present .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 39 # DW_AT_prototyped .byte 25 # DW_FORM_flag_present .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 3 # Abbreviation Code .byte 5 # DW_TAG_formal_parameter .byte 0 # DW_CHILDREN_no .byte 2 # DW_AT_location .byte 23 # DW_FORM_sec_offset .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 4 # Abbreviation Code .byte 5 # DW_TAG_formal_parameter .byte 0 # DW_CHILDREN_no .byte 2 # DW_AT_location .byte 24 # DW_FORM_exprloc .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 52 # DW_TAG_variable .byte 0 # DW_CHILDREN_no .byte 2 # DW_AT_location .byte 23 # DW_FORM_sec_offset .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 6 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 62 # DW_AT_encoding .byte 11 # DW_FORM_data1 .byte 11 # DW_AT_byte_size .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 0 # EOM(3) .section .debug_info,"",@progbits .Lcu_begin0: .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit .Ldebug_info_start0: .short 4 # DWARF version number .long .debug_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0xb5 DW_TAG_compile_unit .long .Linfo_string0 # DW_AT_producer .short 12 # DW_AT_language .long .Linfo_string1 # DW_AT_name .long .Lline_table_start0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc .byte 2 # Abbrev [2] 0x2a:0x65 DW_TAG_subprogram .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 81 # DW_AT_GNU_all_call_sites .long .Linfo_string3 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line # DW_AT_prototyped .long 184 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0x43:0xf DW_TAG_formal_parameter .long .Ldebug_loc0 # DW_AT_location .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 184 # DW_AT_type .byte 4 # Abbrev [4] 0x52:0xf DW_TAG_formal_parameter .byte 3 # DW_AT_location .byte 144 .ascii "\264\t" .long .Linfo_string7 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 184 # DW_AT_type .byte 4 # Abbrev [4] 0x61:0xf DW_TAG_formal_parameter .byte 3 # DW_AT_location .byte 144 .ascii "\265\t" .long .Linfo_string8 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 184 # DW_AT_type .byte 5 # Abbrev [5] 0x70:0xf DW_TAG_variable .long .Ldebug_loc1 # DW_AT_location .long .Linfo_string9 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 2 # DW_AT_decl_line .long 184 # DW_AT_type .byte 5 # Abbrev [5] 0x7f:0xf DW_TAG_variable .long .Ldebug_loc2 # DW_AT_location .long .Linfo_string10 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 3 # DW_AT_decl_line .long 184 # DW_AT_type .byte 0 # End Of Children Mark .byte 2 # Abbrev [2] 0x8f:0x29 DW_TAG_subprogram .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 81 # DW_AT_GNU_all_call_sites .long .Linfo_string5 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 7 # DW_AT_decl_line # DW_AT_prototyped .long 184 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0xa8:0xf DW_TAG_formal_parameter .long .Ldebug_loc3 # DW_AT_location .long .Linfo_string6 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .long 184 # DW_AT_type .byte 0 # End Of Children Mark .byte 6 # Abbrev [6] 0xb8:0x7 DW_TAG_base_type .long .Linfo_string4 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_end0: .ident "clang version 10.0.0 (git@github.com:llvm/llvm-project.git e73f78acd34360f7450b81167d9dc858ccddc262)" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: