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 5@a = common global i32 0, align 4 6 7!llvm.dbg.cu = !{!0} 8 9!0 = metadata !{i32 786449, metadata !8, i32 12, metadata !"clang version 3.3 (trunk 169021) (llvm/trunk 169020)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3, metadata !3, metadata !"baz.dwo"} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/baz.c] [DW_LANG_C99] 10!1 = metadata !{i32 0} 11!3 = metadata !{metadata !5} 12!5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, i32* @a, null} ; [ DW_TAG_variable ] [a] [line 1] [def] 13!6 = metadata !{i32 786473, metadata !8} ; [ DW_TAG_file_type ] 14!7 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 15!8 = metadata !{metadata !"baz.c", metadata !"/usr/local/google/home/echristo/tmp"} 16 17; Check that the skeleton compile unit contains the proper attributes: 18; This DIE has the following attributes: DW_AT_comp_dir, DW_AT_stmt_list, 19; DW_AT_low_pc, DW_AT_high_pc, DW_AT_ranges, DW_AT_dwo_name, DW_AT_dwo_id, 20; DW_AT_ranges_base, DW_AT_addr_base. 21 22; CHECK: .debug_abbrev contents: 23; CHECK: Abbrev table for offset: 0x00000000 24; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_no 25; CHECK: DW_AT_GNU_dwo_name DW_FORM_strp 26; CHECK: DW_AT_GNU_addr_base DW_FORM_sec_offset 27; CHECK: DW_AT_low_pc DW_FORM_addr 28; CHECK: DW_AT_stmt_list DW_FORM_sec_offset 29; CHECK: DW_AT_comp_dir DW_FORM_strp 30; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 31 32; CHECK: .debug_info contents: 33; CHECK: DW_TAG_compile_unit 34; CHECK: DW_AT_GNU_dwo_name [DW_FORM_strp] ( .debug_str[0x00000000] = "baz.dwo") 35; CHECK: DW_AT_GNU_addr_base [DW_FORM_sec_offset] (0x00000000) 36; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000) 37; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000) 38; CHECK: DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x00000008] = "/usr/local/google/home/echristo/tmp") 39; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000) 40 41; CHECK: .debug_str contents: 42; CHECK: 0x00000000: "baz.dwo" 43; CHECK: 0x00000008: "/usr/local/google/home/echristo/tmp" 44 45; Check that we're using the right forms. 46; CHECK: .debug_abbrev.dwo contents: 47; CHECK: Abbrev table for offset: 0x00000000 48; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_yes 49; CHECK: DW_AT_producer DW_FORM_GNU_str_index 50; CHECK: DW_AT_language DW_FORM_data2 51; CHECK: DW_AT_name DW_FORM_GNU_str_index 52; CHECK-NOT: DW_AT_low_pc 53; CHECK-NOT: DW_AT_stmt_list 54; CHECK-NOT: DW_AT_comp_dir 55; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 56 57; CHECK: [2] DW_TAG_variable DW_CHILDREN_no 58; CHECK: DW_AT_name DW_FORM_GNU_str_index 59; CHECK: DW_AT_type DW_FORM_ref4 60; CHECK: DW_AT_external DW_FORM_flag_present 61; CHECK: DW_AT_decl_file DW_FORM_data1 62; CHECK: DW_AT_decl_line DW_FORM_data1 63; CHECK: DW_AT_location DW_FORM_block1 64 65; CHECK: [3] DW_TAG_base_type DW_CHILDREN_no 66; CHECK: DW_AT_name DW_FORM_GNU_str_index 67; CHECK: DW_AT_encoding DW_FORM_data1 68; CHECK: DW_AT_byte_size DW_FORM_data1 69 70; Check that the rest of the compile units have information. 71; CHECK: .debug_info.dwo contents: 72; CHECK: DW_TAG_compile_unit 73; CHECK: DW_AT_producer [DW_FORM_GNU_str_index] ( indexed (00000000) string = "clang version 3.3 (trunk 169021) (llvm/trunk 169020)") 74; CHECK: DW_AT_language [DW_FORM_data2] (0x000c) 75; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000001) string = "baz.c") 76; CHECK-NOT: DW_AT_low_pc 77; CHECK-NOT: DW_AT_stmt_list 78; CHECK-NOT: DW_AT_comp_dir 79; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000) 80; CHECK: DW_TAG_variable 81; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000002) string = "a") 82; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x{{[0-9a-f]*}} => {[[TYPE:0x[0-9a-f]*]]}) 83; CHECK: DW_AT_external [DW_FORM_flag_present] (true) 84; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) 85; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01) 86; CHECK: DW_AT_location [DW_FORM_block1] (<0x02> fb 00 ) 87; CHECK: [[TYPE]]: DW_TAG_base_type 88; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "int") 89 90 91; CHECK: .debug_str.dwo contents: 92; CHECK: 0x00000000: "clang version 3.3 (trunk 169021) (llvm/trunk 169020)" 93; CHECK: 0x00000035: "baz.c" 94; CHECK: 0x0000003b: "a" 95; CHECK: 0x0000003d: "int" 96 97; CHECK: .debug_str_offsets.dwo contents: 98; CHECK: 0x00000000: 00000000 99; CHECK: 0x00000004: 00000035 100; CHECK: 0x00000008: 0000003b 101; CHECK: 0x0000000c: 0000003d 102 103; Object file checks 104; For x86-64-linux we should have this set of relocations for the debug info section 105; 106; OBJ: .debug_info 107; OBJ-NEXT: R_X86_64_32 .debug_abbrev 108; OBJ-NEXT: R_X86_64_32 .debug_str 109; OBJ-NEXT: R_X86_64_32 .debug_addr 110; OBJ-NEXT: R_X86_64_32 .debug_line 111; OBJ-NEXT: R_X86_64_32 .debug_str 112; OBJ-NEXT: } 113