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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 !28
@__bt__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !42
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !46
@asdf = global [5 x i8] c"asdf\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 !52 {
entry:
%"@y_key" = alloca i64, align 8
%lookup_elem_val = alloca [5 x i8], align 1
%"@x_key1" = alloca i64, align 8
%"@x_key" = alloca i64, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@x_key")
store i64 0, ptr %"@x_key", align 8
%update_elem = call i64 inttoptr (i64 2 to ptr)(ptr @AT_x, ptr %"@x_key", ptr @asdf, i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@x_key")
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@x_key1")
store i64 0, 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
call void @llvm.memcpy.p0.p0.i64(ptr align 1 %lookup_elem_val, ptr align 1 %lookup_elem, i64 5, i1 false)
br label %lookup_merge
lookup_failure: ; preds = %entry
call void @llvm.memset.p0.i64(ptr align 1 %lookup_elem_val, i8 0, i64 5, i1 false)
br label %lookup_merge
lookup_merge: ; preds = %lookup_failure, %lookup_success
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@x_key1")
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@y_key")
store i64 0, ptr %"@y_key", align 8
%update_elem2 = call i64 inttoptr (i64 2 to ptr)(ptr @AT_y, ptr %"@y_key", ptr %lookup_elem_val, i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@y_key")
call void @llvm.lifetime.end.p0(i64 -1, ptr %lookup_elem_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
; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly %0, ptr noalias nocapture readonly %1, i64 %2, i1 immarg %3) #2
; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly %0, i8 %1, i64 %2, i1 immarg %3) #3
attributes #0 = { nounwind }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
!llvm.dbg.cu = !{!48}
!llvm.module.flags = !{!50, !51}
!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, !18, !21}
!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: !12, size: 64, offset: 64)
!18 = !DIDerivedType(tag: DW_TAG_member, name: "key", scope: !2, file: !2, baseType: !19, size: 64, offset: 128)
!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
!20 = !DIBasicType(name: "int64", size: 64, encoding: DW_ATE_signed)
!21 = !DIDerivedType(tag: DW_TAG_member, name: "value", scope: !2, file: !2, baseType: !22, size: 64, offset: 192)
!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !23, size: 64)
!23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 40, elements: !24)
!24 = !{!25}
!25 = !DISubrange(count: 5, lowerBound: 0)
!26 = !DIGlobalVariableExpression(var: !27, expr: !DIExpression())
!27 = distinct !DIGlobalVariable(name: "AT_y", linkageName: "global", scope: !2, file: !2, type: !9, isLocal: false, isDefinition: true)
!28 = !DIGlobalVariableExpression(var: !29, expr: !DIExpression())
!29 = distinct !DIGlobalVariable(name: "ringbuf", linkageName: "global", scope: !2, file: !2, type: !30, isLocal: false, isDefinition: true)
!30 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 128, elements: !31)
!31 = !{!32, !37}
!32 = !DIDerivedType(tag: DW_TAG_member, name: "type", scope: !2, file: !2, baseType: !33, size: 64)
!33 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !34, size: 64)
!34 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 864, elements: !35)
!35 = !{!36}
!36 = !DISubrange(count: 27, lowerBound: 0)
!37 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !38, size: 64, offset: 64)
!38 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !39, size: 64)
!39 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 8388608, elements: !40)
!40 = !{!41}
!41 = !DISubrange(count: 262144, lowerBound: 0)
!42 = !DIGlobalVariableExpression(var: !43, expr: !DIExpression())
!43 = distinct !DIGlobalVariable(name: "__bt__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !44, isLocal: false, isDefinition: true)
!44 = !DICompositeType(tag: DW_TAG_array_type, baseType: !45, size: 64, elements: !15)
!45 = !DICompositeType(tag: DW_TAG_array_type, baseType: !20, size: 64, elements: !15)
!46 = !DIGlobalVariableExpression(var: !47, expr: !DIExpression())
!47 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !20, isLocal: false, isDefinition: true)
!48 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !49)
!49 = !{!0, !7, !26, !28, !42, !46}
!50 = !{i32 2, !"Debug Info Version", i32 3}
!51 = !{i32 7, !"uwtable", i32 0}
!52 = distinct !DISubprogram(name: "kprobe_f_1", linkageName: "kprobe_f_1", scope: !2, file: !2, type: !53, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !48, retainedNodes: !56)
!53 = !DISubroutineType(types: !54)
!54 = !{!20, !55}
!55 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64)
!56 = !{!57}
!57 = !DILocalVariable(name: "ctx", arg: 1, scope: !52, file: !2, type: !55)
|
