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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__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !49
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !53
@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 !59 {
entry:
%"@y_val" = alloca i64, align 8
%lookup_elem_val = alloca i64, align 8
%"@x_key1" = alloca i64, align 8
%"@x_val" = alloca i64, align 8
%"@x_key" = alloca i64, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@x_key")
store i64 1, ptr %"@x_key", align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@x_val")
store i64 1, ptr %"@x_val", align 8
%update_elem = call i64 inttoptr (i64 2 to ptr)(ptr @AT_x, ptr %"@x_key", ptr %"@x_val", i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@x_val")
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@x_key")
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@x_key1")
store i64 1, ptr %"@x_key1", align 8
%lookup_elem = call ptr inttoptr (i64 1 to ptr)(ptr @AT_x, ptr %"@x_key1")
call void @llvm.lifetime.start.p0(i64 -1, ptr %lookup_elem_val)
%map_lookup_cond = icmp ne ptr %lookup_elem, null
br i1 %map_lookup_cond, label %lookup_success, label %lookup_failure
lookup_success: ; preds = %entry
%1 = load ptr, ptr %lookup_elem, align 8
store ptr %1, ptr %lookup_elem_val, align 8
br label %lookup_merge
lookup_failure: ; preds = %entry
store i64 0, ptr %lookup_elem_val, align 8
br label %lookup_merge
lookup_merge: ; preds = %lookup_failure, %lookup_success
%2 = load i64, ptr %lookup_elem_val, align 8
call void @llvm.lifetime.end.p0(i64 -1, ptr %lookup_elem_val)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@x_key1")
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@y_val")
store i64 %2, ptr %"@y_val", align 8
%update_elem2 = call i64 inttoptr (i64 2 to ptr)(ptr @AT_y, ptr @yyyy, ptr %"@y_val", i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@y_val")
ret i64 0
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg %0, ptr nocapture %1) #1
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg %0, ptr nocapture %1) #1
attributes #0 = { nounwind }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
!llvm.dbg.cu = !{!55}
!llvm.module.flags = !{!57, !58}
!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__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !51, isLocal: false, isDefinition: true)
!51 = !DICompositeType(tag: DW_TAG_array_type, baseType: !52, size: 64, elements: !15)
!52 = !DICompositeType(tag: DW_TAG_array_type, baseType: !24, size: 64, elements: !15)
!53 = !DIGlobalVariableExpression(var: !54, expr: !DIExpression())
!54 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !24, isLocal: false, isDefinition: true)
!55 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !56)
!56 = !{!0, !7, !26, !35, !49, !53}
!57 = !{i32 2, !"Debug Info Version", i32 3}
!58 = !{i32 7, !"uwtable", i32 0}
!59 = distinct !DISubprogram(name: "kprobe_f_1", linkageName: "kprobe_f_1", scope: !2, file: !2, type: !60, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !55, retainedNodes: !63)
!60 = !DISubroutineType(types: !61)
!61 = !{!24, !62}
!62 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64)
!63 = !{!64}
!64 = !DILocalVariable(name: "ctx", arg: 1, scope: !59, file: !2, type: !62)
|
