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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 }
%printf_t = type { i64 }
%runtime_error_t = type <{ i64, i64, i32 }>
@LICENSE = global [4 x i8] c"GPL\00", section "license", !dbg !0
@ringbuf = dso_local global %"struct map_internal_repr_t" zeroinitializer, section ".maps", !dbg !7
@__bt__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !22
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !29
; 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 !35 {
entry:
%printf_args = alloca %printf_t, align 8
%runtime_error_t = alloca %runtime_error_t, align 8
%op_result = alloca i64, align 8
%get_pid_tgid = call i64 inttoptr (i64 14 to ptr)() #3
%1 = lshr i64 %get_pid_tgid, 32
%pid = trunc i64 %1 to i32
%2 = zext i32 %pid to i64
%3 = icmp ugt i64 %2, 10000
%true_cond = icmp ne i1 %3, false
br i1 %true_cond, label %if_body, label %if_end
if_body: ; preds = %entry
%get_pid_tgid3 = call i64 inttoptr (i64 14 to ptr)() #3
%4 = lshr i64 %get_pid_tgid3, 32
%pid4 = trunc i64 %4 to i32
%5 = zext i32 %pid4 to i64
call void @llvm.lifetime.start.p0(i64 -1, ptr %op_result)
br i1 false, label %is_zero, label %not_zero
if_end: ; preds = %if_end2, %entry
ret i64 0
if_body1: ; preds = %zero_merge
call void @llvm.lifetime.start.p0(i64 -1, ptr %printf_args)
call void @llvm.memset.p0.i64(ptr align 1 %printf_args, i8 0, i64 8, i1 false)
%6 = getelementptr %printf_t, ptr %printf_args, i32 0, i32 0
store i64 0, ptr %6, align 8
%ringbuf_output6 = call i64 inttoptr (i64 130 to ptr)(ptr @ringbuf, ptr %printf_args, i64 8, i64 0)
%ringbuf_loss9 = icmp slt i64 %ringbuf_output6, 0
br i1 %ringbuf_loss9, label %event_loss_counter7, label %counter_merge8
if_end2: ; preds = %counter_merge8, %zero_merge
br label %if_end
is_zero: ; preds = %if_body
store i64 1, ptr %op_result, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %runtime_error_t)
%7 = getelementptr %runtime_error_t, ptr %runtime_error_t, i64 0, i32 0
store i64 30006, ptr %7, align 8
%8 = getelementptr %runtime_error_t, ptr %runtime_error_t, i64 0, i32 1
store i64 0, ptr %8, align 8
%9 = getelementptr %runtime_error_t, ptr %runtime_error_t, i64 0, i32 2
store i64 0, ptr %9, align 8
%ringbuf_output = call i64 inttoptr (i64 130 to ptr)(ptr @ringbuf, ptr %runtime_error_t, i64 20, i64 0)
%ringbuf_loss = icmp slt i64 %ringbuf_output, 0
br i1 %ringbuf_loss, label %event_loss_counter, label %counter_merge
not_zero: ; preds = %if_body
%10 = urem i64 %5, 2
store i64 %10, ptr %op_result, align 8
br label %zero_merge
zero_merge: ; preds = %not_zero, %counter_merge
%11 = load i64, ptr %op_result, align 8
call void @llvm.lifetime.end.p0(i64 -1, ptr %op_result)
%12 = icmp eq i64 %11, 0
%true_cond5 = icmp ne i1 %12, false
br i1 %true_cond5, label %if_body1, label %if_end2
event_loss_counter: ; preds = %is_zero
%get_cpu_id = call i64 inttoptr (i64 8 to ptr)() #3
%13 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded = and i64 %get_cpu_id, %13
%14 = getelementptr [1 x [1 x i64]], ptr @__bt__event_loss_counter, i64 0, i64 %cpu.id.bounded, i64 0
%15 = load i64, ptr %14, align 8
%16 = add i64 %15, 1
store i64 %16, ptr %14, align 8
br label %counter_merge
counter_merge: ; preds = %event_loss_counter, %is_zero
call void @llvm.lifetime.end.p0(i64 -1, ptr %runtime_error_t)
br label %zero_merge
event_loss_counter7: ; preds = %if_body1
%get_cpu_id10 = call i64 inttoptr (i64 8 to ptr)() #3
%17 = load i64, ptr @__bt__max_cpu_id, align 8
%cpu.id.bounded11 = and i64 %get_cpu_id10, %17
%18 = getelementptr [1 x [1 x i64]], ptr @__bt__event_loss_counter, i64 0, i64 %cpu.id.bounded11, i64 0
%19 = load i64, ptr %18, align 8
%20 = add i64 %19, 1
store i64 %20, ptr %18, align 8
br label %counter_merge8
counter_merge8: ; preds = %event_loss_counter7, %if_body1
call void @llvm.lifetime.end.p0(i64 -1, ptr %printf_args)
br label %if_end2
}
; 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: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly %0, i8 %1, i64 %2, i1 immarg %3) #2
attributes #0 = { nounwind }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { memory(none) }
!llvm.dbg.cu = !{!31}
!llvm.module.flags = !{!33, !34}
!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: "ringbuf", linkageName: "global", scope: !2, file: !2, type: !9, isLocal: false, isDefinition: true)
!9 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 128, elements: !10)
!10 = !{!11, !17}
!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: 864, elements: !15)
!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!15 = !{!16}
!16 = !DISubrange(count: 27, 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: 8388608, elements: !20)
!20 = !{!21}
!21 = !DISubrange(count: 262144, lowerBound: 0)
!22 = !DIGlobalVariableExpression(var: !23, expr: !DIExpression())
!23 = distinct !DIGlobalVariable(name: "__bt__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !24, isLocal: false, isDefinition: true)
!24 = !DICompositeType(tag: DW_TAG_array_type, baseType: !25, size: 64, elements: !27)
!25 = !DICompositeType(tag: DW_TAG_array_type, baseType: !26, size: 64, elements: !27)
!26 = !DIBasicType(name: "int64", size: 64, encoding: DW_ATE_signed)
!27 = !{!28}
!28 = !DISubrange(count: 1, lowerBound: 0)
!29 = !DIGlobalVariableExpression(var: !30, expr: !DIExpression())
!30 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !26, isLocal: false, isDefinition: true)
!31 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !32)
!32 = !{!0, !7, !22, !29}
!33 = !{i32 2, !"Debug Info Version", i32 3}
!34 = !{i32 7, !"uwtable", i32 0}
!35 = distinct !DISubprogram(name: "kprobe_f_1", linkageName: "kprobe_f_1", scope: !2, file: !2, type: !36, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !31, retainedNodes: !39)
!36 = !DISubroutineType(types: !37)
!37 = !{!26, !38}
!38 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64)
!39 = !{!40}
!40 = !DILocalVariable(name: "ctx", arg: 1, scope: !35, file: !2, type: !38)
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