1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
; 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 }
%ctx_t = type { ptr, ptr }
%int64_int64__tuple_t = type { i64, i64 }
@LICENSE = global [4 x i8] c"GPL\00", section "license", !dbg !0
@AT_len = dso_local global %"struct map_internal_repr_t" zeroinitializer, section ".maps", !dbg !7
@AT_map = dso_local global %"struct map_internal_repr_t.0" zeroinitializer, section ".maps", !dbg !22
@ringbuf = dso_local global %"struct map_internal_repr_t.1" zeroinitializer, section ".maps", !dbg !31
@__bt__event_loss_counter = dso_local externally_initialized global [1 x [1 x i64]] zeroinitializer, section ".data.event_loss_counter", !dbg !45
@__bt__max_cpu_id = dso_local externally_initialized constant i64 0, section ".rodata", !dbg !49
@abc = global [4 x i8] c"abc\00"
@def = global [4 x i8] c"def\00"
; Function Attrs: nounwind
declare i64 @llvm.bpf.pseudo(i64 %0, i64 %1) #0
; Function Attrs: nounwind
define i64 @begin_1(ptr %0) #0 section "s_begin_1" !dbg !55 {
entry:
%"@len_val" = alloca i64, align 8
%"@len_key" = alloca i64, align 8
%ctx = alloca %ctx_t, align 8
%"$var3" = alloca [4 x i8], align 1
call void @llvm.lifetime.start.p0(i64 -1, ptr %"$var3")
call void @llvm.memset.p0.i64(ptr align 1 %"$var3", i8 0, i64 4, i1 false)
%"$var2" = alloca [4 x i8], align 1
call void @llvm.lifetime.start.p0(i64 -1, ptr %"$var2")
call void @llvm.memset.p0.i64(ptr align 1 %"$var2", i8 0, i64 4, i1 false)
%"$var1" = alloca i64, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"$var1")
store i64 0, ptr %"$var1", align 8
%"@map_val" = alloca i64, align 8
%"@map_key" = alloca i64, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@map_key")
store i64 16, ptr %"@map_key", align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@map_val")
store i64 32, ptr %"@map_val", align 8
%update_elem = call i64 inttoptr (i64 2 to ptr)(ptr @AT_map, ptr %"@map_key", ptr %"@map_val", i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@map_val")
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@map_key")
store i64 123, ptr %"$var1", align 8
call void @llvm.memcpy.p0.p0.i64(ptr align 1 %"$var2", ptr align 1 @abc, i64 4, i1 false)
call void @llvm.memcpy.p0.p0.i64(ptr align 1 %"$var3", ptr align 1 @def, i64 4, i1 false)
call void @llvm.lifetime.start.p0(i64 -1, ptr %ctx)
%1 = call ptr @llvm.preserve.static.offset(ptr %ctx)
%"ctx.$var1" = getelementptr %ctx_t, ptr %1, i64 0, i32 0
store ptr %"$var1", ptr %"ctx.$var1", align 8
%2 = call ptr @llvm.preserve.static.offset(ptr %ctx)
%"ctx.$var3" = getelementptr %ctx_t, ptr %2, i64 0, i32 1
store ptr %"$var3", ptr %"ctx.$var3", align 8
%for_each_map_elem = call i64 inttoptr (i64 164 to ptr)(ptr @AT_map, ptr @map_for_each_cb, ptr %ctx, i64 0)
%3 = load i64, ptr %"$var1", align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@len_key")
store i64 0, ptr %"@len_key", align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"@len_val")
store i64 %3, ptr %"@len_val", align 8
%update_elem1 = call i64 inttoptr (i64 2 to ptr)(ptr @AT_len, ptr %"@len_key", ptr %"@len_val", i64 0)
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@len_val")
call void @llvm.lifetime.end.p0(i64 -1, ptr %"@len_key")
ret i64 0
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg %0, ptr nocapture %1) #1
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg %0, ptr nocapture %1) #1
; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly %0, i8 %1, i64 %2, i1 immarg %3) #2
; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly %0, ptr noalias nocapture readonly %1, i64 %2, i1 immarg %3) #3
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare ptr @llvm.preserve.static.offset(ptr readnone %0) #4
; Function Attrs: nounwind
define internal i64 @map_for_each_cb(ptr %0, ptr %1, ptr %2, ptr %3) #0 section ".text" !dbg !61 {
for_body:
%"$can_read" = alloca [4 x i8], align 1
call void @llvm.lifetime.start.p0(i64 -1, ptr %"$can_read")
call void @llvm.memset.p0.i64(ptr align 1 %"$can_read", i8 0, i64 4, i1 false)
%"$kv" = alloca %int64_int64__tuple_t, align 8
%key = load i64, ptr %1, align 8
%val = load i64, ptr %2, align 8
call void @llvm.lifetime.start.p0(i64 -1, ptr %"$kv")
call void @llvm.memset.p0.i64(ptr align 1 %"$kv", i8 0, i64 16, i1 false)
%4 = getelementptr %int64_int64__tuple_t, ptr %"$kv", i32 0, i32 0
store i64 %key, ptr %4, align 8
%5 = getelementptr %int64_int64__tuple_t, ptr %"$kv", i32 0, i32 1
store i64 %val, ptr %5, align 8
%"ctx.$var1" = getelementptr %ctx_t, ptr %3, i64 0, i32 0
%"$var1" = load ptr, ptr %"ctx.$var1", align 8
%"ctx.$var3" = getelementptr %ctx_t, ptr %3, i64 0, i32 1
%"$var3" = load ptr, ptr %"ctx.$var3", align 8
%6 = load i64, ptr %"$var1", align 8
%7 = add i64 %6, 1
store i64 %7, ptr %"$var1", align 8
call void @llvm.memcpy.p0.p0.i64(ptr align 1 %"$can_read", ptr align 1 %"$var3", i64 4, i1 false)
br label %for_continue
for_continue: ; preds = %for_body
ret i64 0
for_break: ; No predecessors!
ret i64 1
}
attributes #0 = { nounwind }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
!llvm.dbg.cu = !{!51}
!llvm.module.flags = !{!53, !54}
!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_len", 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: !19, size: 64, offset: 192)
!22 = !DIGlobalVariableExpression(var: !23, expr: !DIExpression())
!23 = distinct !DIGlobalVariable(name: "AT_map", linkageName: "global", scope: !2, file: !2, type: !24, isLocal: false, isDefinition: true)
!24 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 256, elements: !25)
!25 = !{!11, !26, !18, !21}
!26 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !27, size: 64, offset: 64)
!27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !28, size: 64)
!28 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 131072, elements: !29)
!29 = !{!30}
!30 = !DISubrange(count: 4096, lowerBound: 0)
!31 = !DIGlobalVariableExpression(var: !32, expr: !DIExpression())
!32 = distinct !DIGlobalVariable(name: "ringbuf", linkageName: "global", scope: !2, file: !2, type: !33, isLocal: false, isDefinition: true)
!33 = !DICompositeType(tag: DW_TAG_structure_type, scope: !2, file: !2, size: 128, elements: !34)
!34 = !{!35, !40}
!35 = !DIDerivedType(tag: DW_TAG_member, name: "type", scope: !2, file: !2, baseType: !36, size: 64)
!36 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !37, size: 64)
!37 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 864, elements: !38)
!38 = !{!39}
!39 = !DISubrange(count: 27, lowerBound: 0)
!40 = !DIDerivedType(tag: DW_TAG_member, name: "max_entries", scope: !2, file: !2, baseType: !41, size: 64, offset: 64)
!41 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !42, size: 64)
!42 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 8388608, elements: !43)
!43 = !{!44}
!44 = !DISubrange(count: 262144, lowerBound: 0)
!45 = !DIGlobalVariableExpression(var: !46, expr: !DIExpression())
!46 = distinct !DIGlobalVariable(name: "__bt__event_loss_counter", linkageName: "global", scope: !2, file: !2, type: !47, isLocal: false, isDefinition: true)
!47 = !DICompositeType(tag: DW_TAG_array_type, baseType: !48, size: 64, elements: !15)
!48 = !DICompositeType(tag: DW_TAG_array_type, baseType: !20, size: 64, elements: !15)
!49 = !DIGlobalVariableExpression(var: !50, expr: !DIExpression())
!50 = distinct !DIGlobalVariable(name: "__bt__max_cpu_id", linkageName: "global", scope: !2, file: !2, type: !20, isLocal: false, isDefinition: true)
!51 = distinct !DICompileUnit(language: DW_LANG_C, file: !2, producer: "bpftrace", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, globals: !52)
!52 = !{!0, !7, !22, !31, !45, !49}
!53 = !{i32 2, !"Debug Info Version", i32 3}
!54 = !{i32 7, !"uwtable", i32 0}
!55 = distinct !DISubprogram(name: "begin_1", linkageName: "begin_1", scope: !2, file: !2, type: !56, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !51, retainedNodes: !59)
!56 = !DISubroutineType(types: !57)
!57 = !{!20, !58}
!58 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64)
!59 = !{!60}
!60 = !DILocalVariable(name: "ctx", arg: 1, scope: !55, file: !2, type: !58)
!61 = distinct !DISubprogram(name: "map_for_each_cb", linkageName: "map_for_each_cb", scope: !2, file: !2, type: !62, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !51, retainedNodes: !64)
!62 = !DISubroutineType(types: !63)
!63 = !{!20, !58, !58, !58, !58}
!64 = !{!65, !66, !67, !68}
!65 = !DILocalVariable(name: "map", arg: 1, scope: !61, file: !2, type: !58)
!66 = !DILocalVariable(name: "key", arg: 2, scope: !61, file: !2, type: !58)
!67 = !DILocalVariable(name: "value", arg: 3, scope: !61, file: !2, type: !58)
!68 = !DILocalVariable(name: "ctx", arg: 4, scope: !61, file: !2, type: !58)
|
