1; REQUIRES: bpf-registered-target 2 3;; Verify that llvm-objdump can use .BTF.ext to show CO-RE relocation data. 4 5; RUN: llc --mtriple bpfel %s --filetype=obj -o - | \ 6; RUN: llvm-objdump --no-addresses --no-show-raw-insn -dr - | \ 7; RUN: FileCheck %s 8 9; RUN: llc --mtriple bpfeb %s --filetype=obj -o - | \ 10; RUN: llvm-objdump --no-addresses --no-show-raw-insn -dr - | \ 11; RUN: FileCheck %s 12 13;; Input generated from the following C code: 14;; 15;; #define __pai __attribute__((preserve_access_index)) 16;; 17;; enum bar { U, V }; 18;; volatile unsigned long g; 19;; void root(void) { 20;; g = __builtin_preserve_enum_value(*(enum bar *)U, 0); 21;; g = __builtin_preserve_enum_value(*(enum bar *)V, 1); 22;; } 23;; 24;; Using the following command: 25;; 26;; clang --target=bpf -g -O2 -emit-llvm -S t.c 27 28; CHECK: CO-RE <enumval_exists> [[[#]]] enum bar::U = 0 29; CHECK: CO-RE <enumval_value> [[[#]]] enum bar::V = 1 30 31@g = dso_local global i64 0, align 8, !dbg !0 32@"llvm.bar:11:1$1" = external global i64, !llvm.preserve.access.index !5 #0 33@"llvm.bar:10:1$0" = external global i64, !llvm.preserve.access.index !5 #0 34 35; Function Attrs: nofree nounwind memory(readwrite, argmem: none) 36define dso_local void @root() local_unnamed_addr #1 !dbg !18 { 37entry: 38 %0 = load i64, ptr @"llvm.bar:10:1$0", align 8 39 %1 = tail call i64 @llvm.bpf.passthrough.i64.i64(i32 1, i64 %0) 40 store volatile i64 %1, ptr @g, align 8, !dbg !22, !tbaa !23 41 %2 = load i64, ptr @"llvm.bar:11:1$1", align 8 42 %3 = tail call i64 @llvm.bpf.passthrough.i64.i64(i32 0, i64 %2) 43 store volatile i64 %3, ptr @g, align 8, !dbg !27, !tbaa !23 44 ret void, !dbg !28 45} 46 47; Function Attrs: nofree nosync nounwind memory(none) 48declare i64 @llvm.bpf.passthrough.i64.i64(i32, i64) #2 49 50attributes #0 = { "btf_ama" } 51attributes #1 = { nofree nounwind memory(readwrite, argmem: none) "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 52attributes #2 = { nofree nosync nounwind memory(none) } 53 54!llvm.dbg.cu = !{!2} 55!llvm.module.flags = !{!13, !14, !15, !16} 56!llvm.ident = !{!17} 57 58!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 59!1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 4, type: !11, isLocal: false, isDefinition: true) 60!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 17.0.0 (/home/eddy/work/llvm-project/clang 2f8c5c0afd1d79a771dd74c8fb1e5bbae6d04eb7)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !10, splitDebugInlining: false, nameTableKind: None) 61!3 = !DIFile(filename: "t.c", directory: "/home/eddy/work/tmp", checksumkind: CSK_MD5, checksum: "5423aa9ef48cb61e948b5c2bd75fd1df") 62!4 = !{!5} 63!5 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "bar", file: !3, line: 3, baseType: !6, size: 32, elements: !7) 64!6 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned) 65!7 = !{!8, !9} 66!8 = !DIEnumerator(name: "U", value: 0) 67!9 = !DIEnumerator(name: "V", value: 1) 68!10 = !{!0} 69!11 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !12) 70!12 = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned) 71!13 = !{i32 7, !"Dwarf Version", i32 5} 72!14 = !{i32 2, !"Debug Info Version", i32 3} 73!15 = !{i32 1, !"wchar_size", i32 4} 74!16 = !{i32 7, !"frame-pointer", i32 2} 75!17 = !{!"clang version 17.0.0 (/home/eddy/work/llvm-project/clang 2f8c5c0afd1d79a771dd74c8fb1e5bbae6d04eb7)"} 76!18 = distinct !DISubprogram(name: "root", scope: !3, file: !3, line: 5, type: !19, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21) 77!19 = !DISubroutineType(types: !20) 78!20 = !{null} 79!21 = !{} 80!22 = !DILocation(line: 6, column: 5, scope: !18) 81!23 = !{!24, !24, i64 0} 82!24 = !{!"long", !25, i64 0} 83!25 = !{!"omnipotent char", !26, i64 0} 84!26 = !{!"Simple C/C++ TBAA"} 85!27 = !DILocation(line: 7, column: 5, scope: !18) 86!28 = !DILocation(line: 8, column: 1, scope: !18) 87