Fuzz introspector: fuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
271 0 EP call site: 00000 m3_LoadModule

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 m3_NewEnvironment [function] [call site] 00001
2 m3_Malloc_Impl [function] [call site] 00002
3 calloc [call site] 00003
2 AllocFuncType [function] [call site] 00004
3 m3_Malloc_Impl [function] [call site] 00005
2 Environment_AddFuncType [function] [call site] 00006
3 AreFuncTypesEqual [function] [call site] 00007
4 memcmp [call site] 00008
3 m3_Free_Impl [function] [call site] 00009
2 m3_FreeEnvironment [function] [call site] 00010
3 Environment_Release [function] [call site] 00011
4 m3_Free_Impl [function] [call site] 00012
4 FreeCodePages [function] [call site] 00013
5 m3_Free_Impl [function] [call site] 00014
3 m3_Free_Impl [function] [call site] 00015
1 m3_NewRuntime [function] [call site] 00016
2 m3_Malloc_Impl [function] [call site] 00017
2 m3_ResetErrorInfo [function] [call site] 00018
2 m3_Malloc_Impl [function] [call site] 00019
2 m3_Free_Impl [function] [call site] 00020
1 m3_ParseModule [function] [call site] 00021
2 m3_Malloc_Impl [function] [call site] 00022
2 ReadLEB_u7 [function] [call site] 00025
3 ReadLebUnsigned [function] [call site] 00026
2 ReadLEB_u32 [function] [call site] 00027
3 ReadLebUnsigned [function] [call site] 00028
2 ParseModuleSection [function] [call site] 00029
2 m3_FreeModule [function] [call site] 00030
3 Module_FreeFunctions [function] [call site] 00031
4 Function_Release [function] [call site] 00032
5 m3_Free_Impl [function] [call site] 00033
5 FreeImportInfo [function] [call site] 00034
6 m3_Free_Impl [function] [call site] 00035
5 m3_Free_Impl [function] [call site] 00036
5 m3_Free_Impl [function] [call site] 00037
3 m3_Free_Impl [function] [call site] 00038
3 m3_Free_Impl [function] [call site] 00039
3 m3_Free_Impl [function] [call site] 00040
3 m3_Free_Impl [function] [call site] 00041
3 m3_Free_Impl [function] [call site] 00042
3 m3_Free_Impl [function] [call site] 00043
3 m3_Free_Impl [function] [call site] 00044
3 FreeImportInfo [function] [call site] 00045
3 m3_Free_Impl [function] [call site] 00046
3 m3_Free_Impl [function] [call site] 00047
3 FreeImportInfo [function] [call site] 00048
1 m3_LoadModule [function] [call site] 00049
2 InitMemory [function] [call site] 00050
3 ResizeMemory [function] [call site] 00051
4 m3_Realloc_Impl [function] [call site] 00052
5 realloc [call site] 00053
2 InitGlobals [function] [call site] 00054
3 EvaluateExpression [function] [call site] 00055
4 AcquireCodePage [function] [call site] 00056
5 AcquireCodePageWithCapacity [function] [call site] 00057
6 RemoveCodePageOfCapacity [function] [call site] 00058
7 NumFreeLines [function] [call site] 00059
6 Environment_AcquireCodePage [function] [call site] 00060
7 RemoveCodePageOfCapacity [function] [call site] 00061
6 NewCodePage [function] [call site] 00062
7 m3_Malloc_Impl [function] [call site] 00063
4 GetPagePC [function] [call site] 00064
4 CompileBlock [function] [call site] 00065
5 GetPagePC [function] [call site] 00066
5 GetFuncTypeNumParams [function] [call site] 00067
5 GetFuncTypeParamType [function] [call site] 00068
5 PopType [function] [call site] 00069
6 GetStackTopType [function] [call site] 00070
7 GetStackTypeFromTop [function] [call site] 00071
6 Pop [function] [call site] 00072
7 IsRegisterSlotAlias [function] [call site] 00073
7 IsFpRegisterSlotAlias [function] [call site] 00074
7 DeallocateRegister [function] [call site] 00075
7 DeallocateSlot [function] [call site] 00076
8 GetTypeNumSlots [function] [call site] 00077
9 Is64BitType [function] [call site] 00078
7 IsStackPolymorphic [function] [call site] 00079
5 IsStackPolymorphic [function] [call site] 00080
5 PushBlockResults [function] [call site] 00081
6 GetFuncTypeNumResults [function] [call site] 00082
6 GetFuncTypeResultType [function] [call site] 00083
6 PushRegister [function] [call site] 00085
7 Push [function] [call site] 00087
8 IsRegisterSlotAlias [function] [call site] 00088
8 IsFpRegisterSlotAlias [function] [call site] 00089
8 AllocateRegister [function] [call site] 00090
6 PushAllocatedSlot [function] [call site] 00091
7 _PushAllocatedSlotAndEmit [function] [call site] 00092
8 AllocateSlots [function] [call site] 00093
9 AllocateSlotsWithinRange [function] [call site] 00094
10 GetTypeNumSlots [function] [call site] 00095
10 AlignSlotToType [function] [call site] 00096
11 GetTypeNumSlots [function] [call site] 00097
10 MarkSlotsAllocated [function] [call site] 00098
11 MarkSlotAllocated [function] [call site] 00099
12 TouchSlot [function] [call site] 00100
8 EmitSlotOffset [function] [call site] 00102
9 EmitWord32 [function] [call site] 00103
5 GetFuncTypeNumResults [function] [call site] 00104
5 CompileBlockStatements [function] [call site] 00106
6 Read_opcode [function] [call site] 00107
6 GetOpInfo [function] [call site] 00108
6 m3Error [function] [call site] 00109
7 vsnprintf [call site] 00110
6 Compile_Operator [function] [call site] 00111
7 GetOpInfo [function] [call site] 00112
7 GetStackTopType [function] [call site] 00113
7 IsIntType [function] [call site] 00115
7 PreserveRegisterIfOccupied [function] [call site] 00116
8 IsRegisterAllocated [function] [call site] 00118
8 GetRegisterStackIndex [function] [call site] 00119
8 DeallocateRegister [function] [call site] 00120
8 GetStackTypeFromBottom [function] [call site] 00121
8 AllocateSlots [function] [call site] 00122
8 EmitOp [function] [call site] 00123
9 EnsureCodePageNumLines [function] [call site] 00124
10 NumFreeLines [function] [call site] 00125
10 AcquireCodePageWithCapacity [function] [call site] 00126
10 EmitWord_impl [function] [call site] 00127
10 op_Branch [function] [call site] 00128
10 GetPagePC [function] [call site] 00129
10 EmitWord_impl [function] [call site] 00130
10 ReleaseCodePage [function] [call site] 00131
11 ReleaseCodePageNoTrack [function] [call site] 00132
12 NumFreeLines [function] [call site] 00133
12 PushCodePage [function] [call site] 00134
9 EmitWord_impl [function] [call site] 00135
8 EmitSlotOffset [function] [call site] 00136
7 IsStackTopInRegister [function] [call site] 00137
8 GetStackTopIndex [function] [call site] 00138
8 IsStackIndexInRegister [function] [call site] 00139
7 PreserveRegisterIfOccupied [function] [call site] 00140
7 IsStackTopInRegister [function] [call site] 00141
7 IsStackTopMinus1InRegister [function] [call site] 00142
8 GetStackTopIndex [function] [call site] 00143
8 IsStackIndexInRegister [function] [call site] 00144
7 IsStackTopMinus1InRegister [function] [call site] 00145
7 PreserveRegisterIfOccupied [function] [call site] 00146
7 EmitSlotNumOfStackTopAndPop [function] [call site] 00148
8 IsStackTopInSlot [function] [call site] 00149
9 IsStackTopInRegister [function] [call site] 00150
8 GetStackTopSlotNumber [function] [call site] 00151
9 GetStackTopIndex [function] [call site] 00152
8 EmitSlotOffset [function] [call site] 00153
7 EmitSlotNumOfStackTopAndPop [function] [call site] 00155
7 PushRegister [function] [call site] 00156
5 GetFuncTypeParamType [function] [call site] 00158
5 GetSlotForStackIndex [function] [call site] 00159
5 MarkSlotsAllocatedByType [function] [call site] 00161
6 GetTypeNumSlots [function] [call site] 00162
6 MarkSlotsAllocated [function] [call site] 00163
5 ValidateBlockEnd [function] [call site] 00164
5 IsStackPolymorphic [function] [call site] 00165
5 ResolveBlockResults [function] [call site] 00166
6 GetFuncTypeNumParams [function] [call site] 00167
6 GetFuncTypeNumResults [function] [call site] 00168
6 GetNumBlockValuesOnStack [function] [call site] 00169
6 GetStackTopIndex [function] [call site] 00170
6 GetStackTopType [function] [call site] 00171
6 CopyStackTopToRegister [function] [call site] 00173
7 IsStackTopInSlot [function] [call site] 00174
7 GetStackTopType [function] [call site] 00175
7 PreserveRegisterIfOccupied [function] [call site] 00176
7 GetStackTopSlotNumber [function] [call site] 00178
7 EmitSlotOffset [function] [call site] 00179
6 AlignSlotToType [function] [call site] 00180
6 CopyStackSlotsR [function] [call site] 00181
7 GetSlotForStackIndex [function] [call site] 00182
7 GetStackTypeFromBottom [function] [call site] 00183
7 GetTypeNumSlots [function] [call site] 00184
7 GetSlotForStackIndex [function] [call site] 00185
7 GetSlotForStackIndex [function] [call site] 00186
7 GetExtraSlotForStackIndex [function] [call site] 00187
8 GetSlotForStackIndex [function] [call site] 00188
8 GetStackTypeFromBottom [function] [call site] 00189
8 GetTypeNumSlots [function] [call site] 00190
7 CopyStackIndexToSlot [function] [call site] 00191
8 GetStackTypeFromBottom [function] [call site] 00192
8 IsStackIndexInRegister [function] [call site] 00193
8 Is64BitType [function] [call site] 00194
8 EmitSlotOffset [function] [call site] 00196
8 GetSlotForStackIndex [function] [call site] 00197
8 EmitSlotOffset [function] [call site] 00198
7 GetTypeNumSlots [function] [call site] 00199
7 TouchSlot [function] [call site] 00200
7 CopyStackIndexToSlot [function] [call site] 00201
7 CopyStackSlotsR [function] [call site] 00202
5 UnwindBlockStack [function] [call site] 00203
5 PushBlockResults [function] [call site] 00205
4 SizeOfType [function] [call site] 00210
4 ReleaseCodePage [function] [call site] 00211
4 Runtime_Release [function] [call site] 00212
5 ForEachModule [function] [call site] 00213
5 _FreeModule [function] [call site] 00214
6 m3_FreeModule [function] [call site] 00215
5 Environment_ReleaseCodePages [function] [call site] 00216
5 Environment_ReleaseCodePages [function] [call site] 00217
5 m3_Free_Impl [function] [call site] 00218
5 m3_Free_Impl [function] [call site] 00219
2 InitDataSegments [function] [call site] 00220
3 EvaluateExpression [function] [call site] 00221
2 InitElements [function] [call site] 00222
3 ReadLEB_u32 [function] [call site] 00223
3 EvaluateExpression [function] [call site] 00224
3 ReadLEB_u32 [function] [call site] 00225
3 m3_Realloc_Impl [function] [call site] 00226
3 ReadLEB_u32 [function] [call site] 00227
1 m3_FindFunction [function] [call site] 00228
2 ForEachModule [function] [call site] 00229
2 v_FindFunction [function] [call site] 00230
3 strcmp [call site] 00231
3 strcmp [call site] 00232
2 CompileFunction [function] [call site] 00233
3 ReadLEB_u32 [function] [call site] 00234
3 AcquireCompilationCodePage [function] [call site] 00235
4 AcquireCodePage [function] [call site] 00236
3 GetPagePC [function] [call site] 00237
3 GetFunctionNumReturns [function] [call site] 00238
3 GetFunctionNumArgs [function] [call site] 00239
3 MarkSlotAllocated [function] [call site] 00240
3 GetFunctionArgType [function] [call site] 00241
4 GetFunctionNumArgs [function] [call site] 00242
3 PushAllocatedSlot [function] [call site] 00243
3 CompileLocals [function] [call site] 00244
4 ReadLEB_u32 [function] [call site] 00245
4 ReadLEB_u32 [function] [call site] 00246
4 ReadLEB_i7 [function] [call site] 00247
5 ReadLebSigned [function] [call site] 00248
4 NormalizeType [function] [call site] 00249
4 PushAllocatedSlot [function] [call site] 00250
3 GetMaxUsedSlotPlusOne [function] [call site] 00251
4 IsSlotAllocated [function] [call site] 00252
3 ReserveConstants [function] [call site] 00253
4 GetTypeNumSlots [function] [call site] 00254
4 AlignSlotToType [function] [call site] 00255
3 EmitPointer [function] [call site] 00258
4 GetPagePC [function] [call site] 00259
4 EmitWord_impl [function] [call site] 00260
3 CompileBlockStatements [function] [call site] 00261
3 m3_CopyMem [function] [call site] 00262
4 m3_Malloc_Impl [function] [call site] 00263
3 ReleaseCompilationCodePage [function] [call site] 00264
4 ReleaseCodePage [function] [call site] 00265
1 m3_FreeModule [function] [call site] 00267
1 m3_FreeRuntime [function] [call site] 00268
2 m3_PrintProfilerInfo [function] [call site] 00269
2 Runtime_Release [function] [call site] 00270
2 m3_Free_Impl [function] [call site] 00271