Report generation date: 2026-05-13

Project overview: capnproto

High level conclusions

Fuzzers reach 1.548% of cyclomatic complexity.

Fuzzers reach 1.982% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

257 / 12961

Cyclomatic complexity statically reachable by fuzzers

1053 / 68016

Runtime code coverage of functions

5500 / 12961

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

Fuzzers overview

Fuzzer	Fuzzer filename	Functions Reached	Functions unreached	Fuzzer depth	Files reached	Basic blocks reached	Cyclomatic complexity	Details
capnp-llvm-fuzzer-testcase	/src/capnproto/c++/src/capnp/llvm-fuzzer-testcase.c++	524	12763	47	72	1408	1098	llvm-fuzzer-testcase.c++

Project functions overview

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer details

Fuzzer: capnp-llvm-fuzzer-testcase

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color Runtime hitcount Callsite count Percentage

red 0 3620 54.7%

gold [1:9] 15 0.22%

yellow [10:29] 33 0.49%

greenyellow [30:49] 19 0.28%

lawngreen 50+ 2930 44.2%

All colors 6617 100

Color	Runtime hitcount	Callsite count	Percentage
red	0	3620	54.7%
gold	[1:9]	15	0.22%
yellow	[10:29]	33	0.49%
greenyellow	[30:49]	19	0.28%
lawngreen	50+	2930	44.2%
All colors	6617	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
492	5094	void kj::_::Debug::log &, char const (&) [4], capnp::Text::Reader>(char const, int, kj::LogSeverity, char const, char const (&) [90], kj::_::DebugComparison &, char const (&) [4], capnp::Text::Reader&&)	call site: 05094	_ZN5capnp1_9checkListIaNS_12DynamicValue6ReaderEEEvT0_St16initializer_listINS_10ReaderFor_IT_Xclgssr5capnpE4kindIS7_EEEE4TypeEE
366	4016	capnp::schema::Value::Which capnp::_::StructReader::getDataField (unsigned int) const	call site: 04016	_ZN2kj14toCharSequenceIRNS_1_15DebugComparisonIRKPKN5capnp1_16RawBrandedSchemaEDnEEEEDTmlL_ZNS1_L3STREEclsr2kjE3fwdIT_Efp_EEOSC_
223	4386	kj::Own ::~Own()	call site: 04386	_ZNK5capnp12DynamicValue6Reader2asIaEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS4_EEEE4TypeEv
208	5673	kj::String kj::_::operator* (kj::_::Stringifier, kj::_::DebugComparison &)	call site: 05673	_ZN5capnp1_9checkListIaNS_12DynamicValue6ReaderEEEvT0_St16initializer_listINS_10ReaderFor_IT_Xclgssr5capnpE4kindIS7_EEEE4TypeEE
180	6311	kj::ArrayDisposer::Dispose_ ::destruct(void*)	call site: 06311	_ZNK5capnp12DynamicValue6Reader2asINS_13DynamicStructEEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS5_EEEE4TypeEv
176	6131	kj::ArrayBuilder ::finish()	call site: 06131	_ZNK5capnp12DynamicValue6Reader2asINS_4DataEEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS5_EEEE4TypeEv
100	3807	capnp::schema::Type::Which capnp::_::StructReader::getDataField (unsigned int) const	call site: 03807	_ZN2kj14toCharSequenceIRNS_11CappedArrayIcLm17EEEEEDTmlL_ZNS_1_L3STREEclsr2kjE3fwdIT_Efp_EEOS5_
98	5958	kj::String kj::_::concat , kj::FixedArray , kj::CappedArray >(kj::CappedArray &&, kj::FixedArray &&, kj::CappedArray &&)	call site: 05958	_ZNK5capnp12DynamicValue6Reader2asIlEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS4_EEEE4TypeEv
92	3698	kj::Maybe ::Maybe(kj::None)	call site: 03698	_ZN2kj14toCharSequenceIRNS_1_15DebugComparisonIN5capnp12StructSchemaERKS4_EEEEDTmlL_ZNS1_L3STREEclsr2kjE3fwdIT_Efp_EEOS9_
82	3918	capnp::schema::Type::AnyPointer::Unconstrained::Which capnp::_::StructReader::getDataField (unsigned int) const	call site: 03918	__clang_call_terminate
73	4850	void kj::_::Debug::log &, capnp::Data::Reader, capnp::Data::Reader>(char const, int, kj::LogSeverity, char const, char const (&) [80], kj::_::DebugComparison &, capnp::Data::Reader&&, capnp::Data::Reader&&)	call site: 04850	_ZNK5capnp12DynamicValue6Reader2asIaEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS4_EEEE4TypeEv
54	5587	void kj::_::Debug::log &, char const (&) [15], capnp::Text::Reader>(char const, int, kj::LogSeverity, char const, char const (&) [121], kj::_::DebugComparison &, char const (&) [15], capnp::Text::Reader&&)	call site: 05587	_ZNK5capnp12DynamicValue6Reader2asINS_13DynamicStructEEENS_10ReaderFor_IT_Xclgssr5capnpE4kindIS5_EEEE4TypeEv

Runtime coverage analysis

Covered functions

1713

Functions that are reachable but not covered

105

Reachable functions

524

Percentage of reachable functions covered

79.96%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/capnproto/c++/src/capnp/llvm-fuzzer-testcase.c++	2
/src/capnproto/c++/./src/kj/common.h	509
/src/capnproto/c++/src/kj/io.c++	5
/src/capnproto/c++/src/kj/io.h	1
/src/capnproto/c++/./src/kj/io.h	2
/src/capnproto/c++/./src/kj/exception.h	6
/src/capnproto/c++/src/capnp/message.h	6
/src/capnproto/c++/src/capnp/serialize.c++	3
/src/capnproto/c++/src/capnp/message.c++	3
/src/capnproto/c++/./src/kj/array.h	181
/src/capnproto/c++/src/kj/exception.c++	25
/src/capnproto/c++/./src/kj/debug.h	512
/src/capnproto/c++/src/kj/debug.h	18
/src/capnproto/c++/./src/kj/string.h	487
/src/capnproto/c++/src/kj/string.c++	36
/src/capnproto/c++/src/kj/array.h	77
/src/capnproto/c++/src/kj/common.c++	5
/src/capnproto/c++/src/kj/debug.c++	6
/src/capnproto/c++/src/kj/common.h	143
/src/capnproto/c++/src/kj/array.c++	6
/src/capnproto/c++/src/kj/string.h	44
/src/capnproto/c++/./src/kj/memory.h	18
/src/capnproto/c++/src/kj/memory.h	19
/src/capnproto/c++/src/kj/exception.h	6
/src/capnproto/c++/src/kj/vector.h	15
/src/capnproto/c++/./src/capnp/endian.h	17
/src/capnproto/c++/src/capnp/arena.c++	10
/src/capnproto/c++/./src/kj/mutex.h	7
/src/capnproto/c++/./src/kj/map.h	10
/src/capnproto/c++/./src/kj/table.h	23
/src/capnproto/c++/./src/kj/vector.h	17
/src/capnproto/c++/src/kj/mutex.c++	13
/src/capnproto/c++/src/capnp/common.h	9
/src/capnproto/c++/src/capnp/arena.h	12
/src/capnproto/c++/./src/kj/units.h	2
/src/capnproto/c++/./src/capnp/common.h	45
/src/capnproto/c++/src/kj/units.h	3
/src/capnproto/c++/./src/kj/tuple.h	2
/src/capnproto/c++/./src/kj/hash.h	3
/src/capnproto/c++/src/kj/table.c++	5
/src/capnproto/c++/src/kj/table.h	1
/src/capnproto/c++/src/capnp/any.h	2
/src/capnproto/c++/./src/capnp/layout.h	73
/src/capnproto/c++/src/capnp/layout.c++	35
/src/capnproto/c++/./src/capnp/any.h	2
/src/capnproto/c++/./src/capnp/pointer-helpers.h	25
/src/capnproto/c++/src/capnp/layout.h	7
/src/capnproto/c++/src/capnp/endian.h	1
/src/capnproto/c++/./src/capnp/test.capnp.h	36
/src/capnproto/c++/src/capnp/test-util.c++	8
/src/capnproto/c++/./src/kj/compat/gtest.h	4
/src/capnproto/c++/./src/capnp/blob.h	4
/src/capnproto/c++/src/capnp/test-util.h	59
/src/capnproto/c++/src/kj/units.c++	1
/src/capnproto/c++/./src/capnp/generated-header-support.h	3
/src/capnproto/c++/src/capnp/stringify.c++	12
/src/capnproto/c++/./src/capnp/schema.h	76
/src/capnproto/c++/src/capnp/schema.c++	26
/src/capnproto/c++/./src/capnp/schema.capnp.h	74
/src/capnproto/c++/src/capnp/schema.h	49
/src/capnproto/c++/./src/capnp/list.h	80
/src/capnproto/c++/./src/capnp/dynamic.h	71
/src/capnproto/c++/src/capnp/dynamic.c++	62
/src/capnproto/c++/src/capnp/dynamic.h	25
/src/capnproto/c++/./src/capnp/raw-schema.h	4
/src/capnproto/c++/src/capnp/blob.h	2
/src/capnproto/c++/./src/capnp/capability.h	3
/src/capnproto/c++/./src/kj/string-tree.h	75
/src/capnproto/c++/./src/kj/encoding.h	2
/src/capnproto/c++/src/kj/encoding.c++	1
/src/capnproto/c++/src/kj/string-tree.c++	3
/src/capnproto/c++/src/kj/string-tree.h	2

Analyses and suggestions

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
`capnp::_::checkDynamicTestMessage(capnp::DynamicStruct::Builder)`	/src/capnproto/c++/src/capnp/test-util.c++	1	['N/A']	63	0	14	3	2	4746	0	13497	12484

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

2509 / 12961

Cyclomatic complexity statically reachable by fuzzers

13527 / 68016

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzz engine guidance

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/capnproto/c++/src/capnp/llvm-fuzzer-testcase.c++

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['void kj::_::Debug::log&, char const (&) [4], capnp::Text::Reader>(char const*, int, kj::LogSeverity, char const*, char const (&) [90], kj::_::DebugComparison&, char const (&) [4], capnp::Text::Reader&&)', 'capnp::schema::Value::Which capnp::_::StructReader::getDataField(unsigned int) const', 'kj::Own::~Own()', 'kj::String kj::_::operator*(kj::_::Stringifier, kj::_::DebugComparison&)', 'kj::ArrayDisposer::Dispose_::destruct(void*)', 'kj::ArrayBuilder::finish()', 'capnp::schema::Type::Which capnp::_::StructReader::getDataField(unsigned int) const', 'kj::String kj::_::concat, kj::FixedArray, kj::CappedArray >(kj::CappedArray&&, kj::FixedArray&&, kj::CappedArray&&)', 'kj::Maybe::Maybe(kj::None)', 'capnp::schema::Type::AnyPointer::Unconstrained::Which capnp::_::StructReader::getDataField(unsigned int) const']

Runtime coverage analysis

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
kj::stringifyStackTrace(kj::ArrayPtr )	47	5	10.63%	['capnp-llvm-fuzzer-testcase']
kj::_::Mutex::lock(kj::_::Mutex::Exclusivity,kj::Maybe >,kj::NoopSourceLocation)	61	19	31.14%	['capnp-llvm-fuzzer-testcase']
kj::_::Mutex::unlock(kj::_::Mutex::Exclusivity,kj::_::Mutex::Waiter*)	46	19	41.30%	['capnp-llvm-fuzzer-testcase']

Files and Directories in report

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/src/capnproto/c++/src/kj/common.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/orphan.h	[]	[]
/src/capnproto/c++/./src/kj/list.h	[]	[]
/src/capnproto/c++/./src/kj/tuple.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/capnp/any.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/compat/gtest.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/mutex.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/io.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/async.c++	[]	[]
/src/capnproto/c++/src/kj/map.h	[]	[]
/src/capnproto/c++/./src/capnp/list.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/memory.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/common.c++	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/one-of.h	[]	[]
/src/capnproto/c++/./src/capnp/layout.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/array.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/endian.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/vector.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/units.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/capnp/any.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/stringify.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/blob.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/orphan.h	[]	[]
/src/capnproto/c++/./src/kj/memory.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/message.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/dynamic.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/pointer-helpers.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/hash.c++	[]	[]
/src/capnproto/c++/src/kj/debug.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/mutex.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/kj/map.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/capnp/common.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/message.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/array.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/function.h	[]	[]
/src/capnproto/c++/src/capnp/layout.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/refcount.c++	[]	[]
/src/capnproto/c++/./src/capnp/schema.capnp.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/table.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/memory.c++	[]	[]
/src/capnproto/c++/src/capnp/endian.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/usr/local/bin/../include/c++/v1/__exception/exception_ptr.h	[]	[]
/usr/local/bin/../include/c++/v1/__iterator/move_iterator.h	[]	[]
/src/capnproto/c++/src/kj/table.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/exception.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/serialize.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/string-tree.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/async-inl.h	[]	[]
/src/capnproto/c++/src/capnp/common.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/test.capnp.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/string-tree.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/refcount.h	[]	[]
/src/capnproto/c++/src/capnp/dynamic.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/source-location.c++	[]	[]
/src/capnproto/c++/./src/kj/table.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/mutex.h	[]	[]
/src/capnproto/c++/src/kj/encoding.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/string.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/string-tree.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/dynamic.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/units.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/debug.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/capability.c++	[]	[]
/src/capnproto/c++/./src/capnp/capability.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/kj/hash.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/capnp/generated-header-support.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/capnp/schema.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/exception.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/schema.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/blob.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/async-prelude.h	[]	[]
/src/capnproto/c++/./src/kj/units.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/debug.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/arena.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/time.c++	[]	[]
/src/capnproto/c++/src/capnp/test.capnp.c++	[]	[]
/src/capnproto/c++/src/capnp/serialize.h	[]	[]
/src/capnproto/c++/./src/kj/async.h	[]	[]
/src/capnproto/c++/src/capnp/capability.h	[]	[]
/src/capnproto/c++/src/kj/array.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/usr/local/bin/../include/c++/v1/__exception/exception.h	[]	[]
/src/capnproto/c++/./src/kj/string.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/test.capnp.h	[]	[]
/src/capnproto/c++/src/kj/string.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/hash.h	[]	[]
/src/capnproto/c++/./src/kj/io.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/io.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/capnp/raw-schema.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/./src/kj/encoding.h	['capnp-llvm-fuzzer-testcase']	[]
/src/capnproto/c++/src/kj/list.c++	[]	[]
/src/capnproto/c++/./src/kj/vector.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/encoding.h	[]	[]
/src/capnproto/c++/src/capnp/test-util.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/test-util.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/any.c++	[]	[]
/src/capnproto/c++/src/capnp/llvm-fuzzer-testcase.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/async-inl.h	[]	[]
/src/capnproto/c++/src/capnp/arena.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/async.h	[]	[]
/src/capnproto/c++/./src/kj/source-location.h	[]	[]
/src/capnproto/c++/src/kj/exception.c++	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/capnp/schema.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/capnp/layout.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/./src/kj/common.h	['capnp-llvm-fuzzer-testcase']	['capnp-llvm-fuzzer-testcase']
/src/capnproto/c++/src/kj/async-prelude.h	[]	[]

Directories in report

Directory

/src/capnproto/c++/src/kj/
/src/capnproto/c++/src/capnp/
/usr/local/bin/../include/c++/v1/__exception/
/usr/local/bin/../include/c++/v1/__iterator/
/src/capnproto/c++/./src/capnp/
/src/capnproto/c++/./src/kj/
/src/capnproto/c++/./src/kj/compat/

Metadata section

This sections shows the raw data that is used to produce this report. This is mainly used for further processing and developer debugging.

Fuzzer Calltree file Program data file Coverage file

capnp-llvm-fuzzer-testcase fuzzerLogFile-0-4P21p4Q7wl.data fuzzerLogFile-0-4P21p4Q7wl.data.yaml capnp-llvm-fuzzer-testcase.covreport

Table of contents

Project overview: capnproto

High level conclusions

Reachability and coverage overview

Fuzzers overview

Project functions overview

Fuzzer details

Fuzzer: capnp-llvm-fuzzer-testcase

Call tree

Fuzz blockers

Runtime coverage analysis

Files reached

Analyses and suggestions

Optimal target analysis

Remaining optimal interesting functions

All functions overview

Fuzz engine guidance

/src/capnproto/c++/src/capnp/llvm-fuzzer-testcase.c++

Dictionary

Fuzzer function priority

Runtime coverage analysis

Complex functions with low coverage

Files and Directories in report

Files in report

Directories in report

Metadata section