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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 }
@LICENSE = global [4 x i8] c"GPL\00", section "license", !dbg !0
@AT_ = dso_local global %"struct map_internal_repr_t" zeroinitializer, section ".maps", !dbg !7
@ringbuf = dso_local global %"struct map_internal_repr_t.0" zeroinitializer, section ".maps", !dbg !27
@__bt__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !41
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !45
@sshd = global [5 x i8] c"sshd\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 !51 {
entry:
%"@_val" = alloca i64, align 8
%"@_key" = alloca i1, align 1
%strcmp.result = alloca i64, align 8
%__builtin_comm = alloca [16 x i8], align 1
call void @llvm.lifetime.start.p0(i64 -1, ptr %__builtin_comm)
call void @llvm.memset.p0.i64(ptr align 1 %__builtin_comm, i8 0, i64 16, i1 false)
%get_comm = call i64 inttoptr (i64 16 to ptr)(ptr %__builtin_comm, i64 16)
call void @llvm.lifetime.start.p0(i64 -1, ptr %strcmp.result)
store i64 1, ptr %strcmp.result, align 8
%1 = getelementptr i8, ptr %__builtin_comm, i32 0
%2 = load i8, ptr %1, align 1
%3 = load i8, ptr @sshd, align 1
%strcmp.cmp = icmp ne i8 %2, %3
br i1 %strcmp.cmp, label %strcmp.false, label %strcmp.loop_null_cmp
strcmp.false: ; preds = %strcmp.done, %strcmp.loop9, %strcmp.loop5, %strcmp.loop1, %strcmp.loop, %entry
%4 = load i64, ptr %strcmp.result, align 8
call void @llvm.lifetime.end.p0(i64 -1, ptr %strcmp.result)
%5 = trunc i64 %4 to i1
call void @llvm.lifetime.end.p0(i64 -1, ptr %__builtin_comm)
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@_key")
%6 = zext i1 %5 to i8
store i8 %6, ptr %"@_key", align 1
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@_val")
store i64 1, ptr %"@_val", align 8
%update_elem = call i64 inttoptr (i64 2 to ptr)(ptr @AT_, ptr %"@_key", ptr %"@_val", i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@_val")
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@_key")
ret i64 0
strcmp.done: ; preds = %strcmp.loop13, %strcmp.loop_null_cmp14, %strcmp.loop_null_cmp10, %strcmp.loop_null_cmp6, %strcmp.loop_null_cmp2, %strcmp.loop_null_cmp
store i64 0, ptr %strcmp.result, align 8
br label %strcmp.false
strcmp.loop: ; preds = %strcmp.loop_null_cmp
%7 = getelementptr i8, ptr %__builtin_comm, i32 1
%8 = load i8, ptr %7, align 1
%9 = load i8, ptr getelementptr (i8, ptr @sshd, i32 1), align 1
%strcmp.cmp3 = icmp ne i8 %8, %9
br i1 %strcmp.cmp3, label %strcmp.false, label %strcmp.loop_null_cmp2
strcmp.loop_null_cmp: ; preds = %entry
%strcmp.cmp_null = icmp eq i8 %2, 0
br i1 %strcmp.cmp_null, label %strcmp.done, label %strcmp.loop
strcmp.loop1: ; preds = %strcmp.loop_null_cmp2
%10 = getelementptr i8, ptr %__builtin_comm, i32 2
%11 = load i8, ptr %10, align 1
%12 = load i8, ptr getelementptr (i8, ptr @sshd, i32 2), align 1
%strcmp.cmp7 = icmp ne i8 %11, %12
br i1 %strcmp.cmp7, label %strcmp.false, label %strcmp.loop_null_cmp6
strcmp.loop_null_cmp2: ; preds = %strcmp.loop
%strcmp.cmp_null4 = icmp eq i8 %8, 0
br i1 %strcmp.cmp_null4, label %strcmp.done, label %strcmp.loop1
strcmp.loop5: ; preds = %strcmp.loop_null_cmp6
%13 = getelementptr i8, ptr %__builtin_comm, i32 3
%14 = load i8, ptr %13, align 1
%15 = load i8, ptr getelementptr (i8, ptr @sshd, i32 3), align 1
%strcmp.cmp11 = icmp ne i8 %14, %15
br i1 %strcmp.cmp11, label %strcmp.false, label %strcmp.loop_null_cmp10
strcmp.loop_null_cmp6: ; preds = %strcmp.loop1
%strcmp.cmp_null8 = icmp eq i8 %11, 0
br i1 %strcmp.cmp_null8, label %strcmp.done, label %strcmp.loop5
strcmp.loop9: ; preds = %strcmp.loop_null_cmp10
%16 = getelementptr i8, ptr %__builtin_comm, i32 4
%17 = load i8, ptr %16, align 1
%18 = load i8, ptr getelementptr (i8, ptr @sshd, i32 4), align 1
%strcmp.cmp15 = icmp ne i8 %17, %18
br i1 %strcmp.cmp15, label %strcmp.false, label %strcmp.loop_null_cmp14
strcmp.loop_null_cmp10: ; preds = %strcmp.loop5
%strcmp.cmp_null12 = icmp eq i8 %14, 0
br i1 %strcmp.cmp_null12, label %strcmp.done, label %strcmp.loop9
strcmp.loop13: ; preds = %strcmp.loop_null_cmp14
br label %strcmp.done
strcmp.loop_null_cmp14: ; preds = %strcmp.loop9
%strcmp.cmp_null16 = icmp eq i8 %17, 0
br i1 %strcmp.cmp_null16, label %strcmp.done, label %strcmp.loop13
}
; 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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly %0, i8 %1, i64 %2, i1 immarg %3) #2
; 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) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
!llvm.dbg.cu = !{!47}
!llvm.module.flags = !{!49, !50}
!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_", 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, !24}
!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: !4, size: 64)
!24 = !DIDerivedType(tag: DW_TAG_member, name: "value", scope: !2, file: !2, baseType: !25, size: 64, offset: 192)
!25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !26, size: 64)
!26 = !DIBasicType(name: "int64", size: 64, encoding: DW_ATE_signed)
!27 = !DIGlobalVariableExpression(var: !28, expr: !DIExpression())
!28 = distinct !DIGlobalVariable(name: "ringbuf", linkageName: "global", scope: !2, file: !2, type: !29, isLocal: false, isDefinition: true)
!29 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 128, elements: !30)
!30 = !{!31, !36}
!31 = !DIDerivedType(tag: DW_TAG_member, name: "type", scope: !2, file: !2, baseType: !32, size: 64)
!32 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !33, size: 64)
!33 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 864, elements: !34)
!34 = !{!35}
!35 = !DISubrange(count: 27, lowerBound: 0)
!36 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !37, size: 64, offset: 64)
!37 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !38, size: 64)
!38 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 8388608, elements: !39)
!39 = !{!40}
!40 = !DISubrange(count: 262144, lowerBound: 0)
!41 = !DIGlobalVariableExpression(var: !42, expr: !DIExpression())
!42 = distinct !DIGlobalVariable(name: "__bt__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !43, isLocal: false, isDefinition: true)
!43 = !DICompositeType(tag: DW_TAG_array_type, baseType: !44, size: 64, elements: !15)
!44 = !DICompositeType(tag: DW_TAG_array_type, baseType: !26, size: 64, elements: !15)
!45 = !DIGlobalVariableExpression(var: !46, expr: !DIExpression())
!46 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !26, isLocal: false, isDefinition: true)
!47 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !48)
!48 = !{!0, !7, !27, !41, !45}
!49 = !{i32 2, !"Debug Info Version", i32 3}
!50 = !{i32 7, !"uwtable", i32 0}
!51 = distinct !DISubprogram(name: "kprobe_f_1", linkageName: "kprobe_f_1", scope: !2, file: !2, type: !52, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !47, retainedNodes: !54)
!52 = !DISubroutineType(types: !53)
!53 = !{!26, !23}
!54 = !{!55}
!55 = !DILocalVariable(name: "ctx", arg: 1, scope: !51, file: !2, type: !23)
|
