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|
; ModuleID = 'bpftrace'
source_filename = "bpftrace"
target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
target triple = "bpf"
%"struct map_internal_repr_t" = type { ptr, ptr, ptr, ptr }
%"struct map_internal_repr_t.0" = type { ptr, ptr, ptr, ptr }
%"struct map_internal_repr_t.1" = type { ptr, ptr }
@LICENSE = global [4 x i8] c"GPL\00", section "license", !dbg !0
@AT_x = dso_local global %"struct map_internal_repr_t" zeroinitializer, section ".maps", !dbg !7
@AT_y = dso_local global %"struct map_internal_repr_t.0" zeroinitializer, section ".maps", !dbg !26
@ringbuf = dso_local global %"struct map_internal_repr_t.1" zeroinitializer, section ".maps", !dbg !35
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !49
@__bt__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !51
@__bt__map_key_buf = dso_local externally_initialized global [1 x [2 x [8 x i8]]] zeroinitializer, section ".data.map_key_buf", !dbg !55
@__bt__write_map_val_buf = dso_local externally_initialized global [1 x [1 x [8 x i8]]] zeroinitializer, section ".data.write_map_val_buf", !dbg !64
@__bt__read_map_val_buf = dso_local externally_initialized global [1 x [1 x [8 x i8]]] zeroinitializer, section ".data.read_map_val_buf", !dbg !68
@yyyy = global [5 x i8] c"yyyy\00"
; Function Attrs: nounwind
declare i64 @llvm.bpf.pseudo(i64 %0, i64 %1) #0
; Function Attrs: nounwind
define i64 @kprobe_f_1(ptr %0) #0 section "s_kprobe_f_1" !dbg !74 {
entry:
%get_cpu_id = call i64 inttoptr (i64 8 to ptr)() #1
%1 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded = and i64 %get_cpu_id, %1
%2 = getelementptr [1 x [2 x [8 x i8]]], ptr @__bt__map_key_buf, i64 0, i64 %cpu.id.bounded, i64 0, i64 0
store i64 1, ptr %2, align 8
%get_cpu_id1 = call i64 inttoptr (i64 8 to ptr)() #1
%3 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded2 = and i64 %get_cpu_id1, %3
%4 = getelementptr [1 x [1 x [8 x i8]]], ptr @__bt__write_map_val_buf, i64 0, i64 %cpu.id.bounded2, i64 0, i64 0
store i64 1, ptr %4, align 8
%update_elem = call i64 inttoptr (i64 2 to ptr)(ptr @AT_x, ptr %2, ptr %4, i64 0)
%get_cpu_id3 = call i64 inttoptr (i64 8 to ptr)() #1
%5 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded4 = and i64 %get_cpu_id3, %5
%6 = getelementptr [1 x [2 x [8 x i8]]], ptr @__bt__map_key_buf, i64 0, i64 %cpu.id.bounded4, i64 1, i64 0
store i64 1, ptr %6, align 8
%lookup_elem = call ptr inttoptr (i64 1 to ptr)(ptr @AT_x, ptr %6)
%get_cpu_id5 = call i64 inttoptr (i64 8 to ptr)() #1
%7 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded6 = and i64 %get_cpu_id5, %7
%8 = getelementptr [1 x [1 x [8 x i8]]], ptr @__bt__read_map_val_buf, i64 0, i64 %cpu.id.bounded6, i64 0, i64 0
%map_lookup_cond = icmp ne ptr %lookup_elem, null
br i1 %map_lookup_cond, label %lookup_success, label %lookup_failure
lookup_success: ; preds = %entry
%9 = load ptr, ptr %lookup_elem, align 8
store ptr %9, ptr %8, align 8
br label %lookup_merge
lookup_failure: ; preds = %entry
store i64 0, ptr %8, align 8
br label %lookup_merge
lookup_merge: ; preds = %lookup_failure, %lookup_success
%10 = load i64, ptr %8, align 8
%get_cpu_id7 = call i64 inttoptr (i64 8 to ptr)() #1
%11 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded8 = and i64 %get_cpu_id7, %11
%12 = getelementptr [1 x [1 x [8 x i8]]], ptr @__bt__write_map_val_buf, i64 0, i64 %cpu.id.bounded8, i64 0, i64 0
store i64 %10, ptr %12, align 8
%update_elem9 = call i64 inttoptr (i64 2 to ptr)(ptr @AT_y, ptr @yyyy, ptr %12, i64 0)
ret i64 0
}
attributes #0 = { nounwind }
attributes #1 = { memory(none) }
!llvm.dbg.cu = !{!70}
!llvm.module.flags = !{!72, !73}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "LICENSE", linkageName: "global", scope: !2, file: !2, type: !3, isLocal: false, isDefinition: true)
!2 = !DIFile(filename: "bpftrace.bpf.o", directory: ".")
!3 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 32, elements: !5)
!4 = !DIBasicType(name: "int8", size: 8, encoding: DW_ATE_signed)
!5 = !{!6}
!6 = !DISubrange(count: 4, lowerBound: 0)
!7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression())
!8 = distinct !DIGlobalVariable(name: "AT_x", linkageName: "global", scope: !2, file: !2, type: !9, isLocal: false, isDefinition: true)
!9 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 256, elements: !10)
!10 = !{!11, !17, !22, !25}
!11 = !DIDerivedType(tag: DW_TAG_member, name: "type", scope: !2, file: !2, baseType: !12, size: 64)
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
!13 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 32, elements: !15)
!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!15 = !{!16}
!16 = !DISubrange(count: 1, lowerBound: 0)
!17 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !18, size: 64, offset: 64)
!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !19, size: 64)
!19 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 131072, elements: !20)
!20 = !{!21}
!21 = !DISubrange(count: 4096, lowerBound: 0)
!22 = !DIDerivedType(tag: DW_TAG_member, name: "key", scope: !2, file: !2, baseType: !23, size: 64, offset: 128)
!23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !24, size: 64)
!24 = !DIBasicType(name: "int64", size: 64, encoding: DW_ATE_signed)
!25 = !DIDerivedType(tag: DW_TAG_member, name: "value", scope: !2, file: !2, baseType: !23, size: 64, offset: 192)
!26 = !DIGlobalVariableExpression(var: !27, expr: !DIExpression())
!27 = distinct !DIGlobalVariable(name: "AT_y", linkageName: "global", scope: !2, file: !2, type: !28, isLocal: false, isDefinition: true)
!28 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 256, elements: !29)
!29 = !{!11, !17, !30, !25}
!30 = !DIDerivedType(tag: DW_TAG_member, name: "key", scope: !2, file: !2, baseType: !31, size: 64, offset: 128)
!31 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !32, size: 64)
!32 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 40, elements: !33)
!33 = !{!34}
!34 = !DISubrange(count: 5, lowerBound: 0)
!35 = !DIGlobalVariableExpression(var: !36, expr: !DIExpression())
!36 = distinct !DIGlobalVariable(name: "ringbuf", linkageName: "global", scope: !2, file: !2, type: !37, isLocal: false, isDefinition: true)
!37 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 128, elements: !38)
!38 = !{!39, !44}
!39 = !DIDerivedType(tag: DW_TAG_member, name: "type", scope: !2, file: !2, baseType: !40, size: 64)
!40 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !41, size: 64)
!41 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 864, elements: !42)
!42 = !{!43}
!43 = !DISubrange(count: 27, lowerBound: 0)
!44 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !45, size: 64, offset: 64)
!45 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !46, size: 64)
!46 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 8388608, elements: !47)
!47 = !{!48}
!48 = !DISubrange(count: 262144, lowerBound: 0)
!49 = !DIGlobalVariableExpression(var: !50, expr: !DIExpression())
!50 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !24, isLocal: false, isDefinition: true)
!51 = !DIGlobalVariableExpression(var: !52, expr: !DIExpression())
!52 = distinct !DIGlobalVariable(name: "__bt__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !53, isLocal: false, isDefinition: true)
!53 = !DICompositeType(tag: DW_TAG_array_type, baseType: !54, size: 64, elements: !15)
!54 = !DICompositeType(tag: DW_TAG_array_type, baseType: !24, size: 64, elements: !15)
!55 = !DIGlobalVariableExpression(var: !56, expr: !DIExpression())
!56 = distinct !DIGlobalVariable(name: "__bt__map_key_buf", linkageName: "global", scope: !2, file: !2, type: !57, isLocal: false, isDefinition: true)
!57 = !DICompositeType(tag: DW_TAG_array_type, baseType: !58, size: 128, elements: !15)
!58 = !DICompositeType(tag: DW_TAG_array_type, baseType: !59, size: 128, elements: !62)
!59 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 64, elements: !60)
!60 = !{!61}
!61 = !DISubrange(count: 8, lowerBound: 0)
!62 = !{!63}
!63 = !DISubrange(count: 2, lowerBound: 0)
!64 = !DIGlobalVariableExpression(var: !65, expr: !DIExpression())
!65 = distinct !DIGlobalVariable(name: "__bt__write_map_val_buf", linkageName: "global", scope: !2, file: !2, type: !66, isLocal: false, isDefinition: true)
!66 = !DICompositeType(tag: DW_TAG_array_type, baseType: !67, size: 64, elements: !15)
!67 = !DICompositeType(tag: DW_TAG_array_type, baseType: !59, size: 64, elements: !15)
!68 = !DIGlobalVariableExpression(var: !69, expr: !DIExpression())
!69 = distinct !DIGlobalVariable(name: "__bt__read_map_val_buf", linkageName: "global", scope: !2, file: !2, type: !66, isLocal: false, isDefinition: true)
!70 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !71)
!71 = !{!0, !7, !26, !35, !49, !51, !55, !64, !68}
!72 = !{i32 2, !"Debug Info Version", i32 3}
!73 = !{i32 7, !"uwtable", i32 0}
!74 = distinct !DISubprogram(name: "kprobe_f_1", linkageName: "kprobe_f_1", scope: !2, file: !2, type: !75, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !70, retainedNodes: !78)
!75 = !DISubroutineType(types: !76)
!76 = !{!24, !77}
!77 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64)
!78 = !{!79}
!79 = !DILocalVariable(name: "ctx", arg: 1, scope: !74, file: !2, type: !77)
|
