1; RUN: llc -split-dwarf=Enable -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t 2; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s 3; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=OBJ %s 4; RUN: llvm-objdump -h %t | FileCheck --check-prefix=HDR %s 5 6@a = common global i32 0, align 4 7 8!llvm.dbg.cu = !{!0} 9!llvm.module.flags = !{!9} 10 11!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.3 (trunk 169021) (llvm/trunk 169020)", isOptimized: false, splitDebugFilename: "baz.dwo", emissionKind: 0, file: !8, enums: !1, retainedTypes: !1, subprograms: !1, globals: !3, imports: !1) 12!1 = !{} 13!3 = !{!5} 14!5 = !DIGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !6, type: !7, variable: i32* @a) 15!6 = !DIFile(filename: "baz.c", directory: "/usr/local/google/home/echristo/tmp") 16!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 17!8 = !DIFile(filename: "baz.c", directory: "/usr/local/google/home/echristo/tmp") 18 19; Check that the skeleton compile unit contains the proper attributes: 20; This DIE has the following attributes: DW_AT_comp_dir, DW_AT_stmt_list, 21; DW_AT_low_pc, DW_AT_high_pc, DW_AT_ranges, DW_AT_dwo_name, DW_AT_dwo_id, 22; DW_AT_ranges_base, DW_AT_addr_base. 23 24; CHECK: .debug_abbrev contents: 25; CHECK: Abbrev table for offset: 0x00000000 26; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_no 27; CHECK: DW_AT_stmt_list DW_FORM_sec_offset 28; CHECK: DW_AT_GNU_dwo_name DW_FORM_strp 29; CHECK: DW_AT_comp_dir DW_FORM_strp 30; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 31 32; Check that we're using the right forms. 33; CHECK: .debug_abbrev.dwo contents: 34; CHECK: Abbrev table for offset: 0x00000000 35; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_yes 36; CHECK: DW_AT_producer DW_FORM_GNU_str_index 37; CHECK: DW_AT_language DW_FORM_data2 38; CHECK: DW_AT_name DW_FORM_GNU_str_index 39; CHECK-NOT: DW_AT_low_pc 40; CHECK-NOT: DW_AT_stmt_list 41; CHECK-NOT: DW_AT_comp_dir 42; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 43 44; CHECK: [2] DW_TAG_variable DW_CHILDREN_no 45; CHECK: DW_AT_name DW_FORM_GNU_str_index 46; CHECK: DW_AT_type DW_FORM_ref4 47; CHECK: DW_AT_external DW_FORM_flag_present 48; CHECK: DW_AT_decl_file DW_FORM_data1 49; CHECK: DW_AT_decl_line DW_FORM_data1 50; CHECK: DW_AT_location DW_FORM_exprloc 51 52; CHECK: [3] DW_TAG_base_type DW_CHILDREN_no 53; CHECK: DW_AT_name DW_FORM_GNU_str_index 54; CHECK: DW_AT_encoding DW_FORM_data1 55; CHECK: DW_AT_byte_size DW_FORM_data1 56 57; CHECK: .debug_info contents: 58; CHECK: DW_TAG_compile_unit 59; CHECK-NEXT: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000) 60; CHECK-NEXT: DW_AT_GNU_dwo_name [DW_FORM_strp] ( .debug_str[0x00000000] = "baz.dwo") 61; CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x00000008] = "/usr/local/google/home/echristo/tmp") 62; CHECK-NEXT: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x1f1f859683d49324) 63 64; Check that the rest of the compile units have information. 65; CHECK: .debug_info.dwo contents: 66; CHECK: DW_TAG_compile_unit 67; CHECK: DW_AT_producer [DW_FORM_GNU_str_index] ( indexed (00000000) string = "clang version 3.3 (trunk 169021) (llvm/trunk 169020)") 68; CHECK: DW_AT_language [DW_FORM_data2] (DW_LANG_C99) 69; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000001) string = "baz.c") 70; CHECK-NOT: DW_AT_low_pc 71; CHECK-NOT: DW_AT_stmt_list 72; CHECK-NOT: DW_AT_comp_dir 73; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x1f1f859683d49324) 74; CHECK: DW_TAG_variable 75; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000002) string = "a") 76; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[TYPE:0x[0-9a-f]*]]}) 77; CHECK: DW_AT_external [DW_FORM_flag_present] (true) 78; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) 79; CHECK: DW_AT_decl_line [DW_FORM_data1] (1) 80; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x2> fb 00 ) 81; CHECK: [[TYPE]]: DW_TAG_base_type 82; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "int") 83 84; CHECK: .debug_str contents: 85; CHECK: 0x00000000: "baz.dwo" 86; CHECK: 0x00000008: "/usr/local/google/home/echristo/tmp" 87 88; CHECK: .debug_str.dwo contents: 89; CHECK: 0x00000000: "clang version 3.3 (trunk 169021) (llvm/trunk 169020)" 90; CHECK: 0x00000035: "baz.c" 91; CHECK: 0x0000003b: "a" 92; CHECK: 0x0000003d: "int" 93 94; CHECK: .debug_str_offsets.dwo contents: 95; CHECK: 0x00000000: 00000000 96; CHECK: 0x00000004: 00000035 97; CHECK: 0x00000008: 0000003b 98; CHECK: 0x0000000c: 0000003d 99 100; Object file checks 101; For x86-64-linux we should have this set of relocations for the debug info section 102; 103; OBJ: .debug_info 104; OBJ-NEXT: R_X86_64_32 .debug_abbrev 105; OBJ-NEXT: R_X86_64_32 .debug_line 106; OBJ-NEXT: R_X86_64_32 .debug_str 107; OBJ-NEXT: R_X86_64_32 .debug_str 108; OBJ-NEXT: R_X86_64_32 .debug_addr 109; OBJ-NEXT: } 110 111; HDR-NOT: .debug_aranges 112; HDR-NOT: .rela.{{.*}}.dwo 113 114!9 = !{i32 1, !"Debug Info Version", i32 3} 115