High level conclusions

Fuzzers reach 50.48% of cyclomatic complexity.

Fuzzers reach 55.87% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

994 / 1779

Cyclomatic complexity statically reachable by fuzzers

7378 / 14614

Runtime code coverage of functions

852 / 1779

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: fuzz_regexp

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	218	36.7%
gold	[1:9]	3	0.50%
yellow	[10:29]	7	1.18%
greenyellow	[30:49]	1	0.16%
lawngreen	50+	364	61.3%
All colors	593	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
6	209	7 : View List ['rqsort', 'get_u32', 'put_u32', 're_emit_char', 're_parse_out_of_memory', 'lre_realloc', 're_emit_op_u32']	6	283	re_emit_string_list	call site: 00384	/src/quickjs/libregexp.c:1223
0	18	1 : View List ['re_emit_op_u32']	0	18	re_emit_char	call site: 00402	/src/quickjs/libregexp.c:1210
0	8	2 : View List ['re_parse_error', 'pstrcpy']	0	14	lre_compile	call site: 00484	/src/quickjs/libregexp.c:2507
0	4	1 : View List ['re_parse_error']	0	4	get_class_atom	call site: 00326	/src/quickjs/libregexp.c:1126
0	4	1 : View List ['re_parse_error']	0	4	re_emit_range	call site: 00385	/src/quickjs/libregexp.c:1171
0	2	1 : View List ['is_digit']	0	2	lre_parse_escape	call site: 00077	/src/quickjs/libregexp.c:764
0	0	None	1270	3660	re_parse_nested_class	call site: 00134	/src/quickjs/libregexp.c:1330
0	0	None	1270	3652	re_parse_nested_class	call site: 00139	/src/quickjs/libregexp.c:1388
0	0	None	21	28	rqsort	call site: 00307	/src/quickjs/cutils.c:538
0	0	None	6	1919	re_parse_disjunction	call site: 00026	/src/quickjs/libregexp.c:2359
0	0	None	6	1301	re_parse_term	call site: 00125	/src/quickjs/libregexp.c:1823
0	0	None	6	1281	re_parse_term	call site: 00416	/src/quickjs/libregexp.c:2089

Runtime coverage analysis

Covered functions

100

Functions that are reachable but not covered

33

Reachable functions

131

Percentage of reachable functions covered

74.81%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzz_regexp.c	4
libregexp.c	55
cutils.c	13
./cutils.h	13
./libunicode.h	7
libunicode.c	31

Fuzzer: fuzz_eval

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	3567	69.1%
gold	[1:9]	384	7.44%
yellow	[10:29]	526	10.1%
greenyellow	[30:49]	165	3.19%
lawngreen	50+	517	10.0%
All colors	5159	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
49961	86667	25 : View List ['JS_NumberIsNegativeOrMinusZero', '__JS_AtomIsTaggedInt', 'JS_AtomIsNumericIndex1', 'js_update_property_flags', 'JS_NumberIsInteger', 'JS_ToArrayLengthFree', 'free_var_ref', 'get_prop_flags', 'JS_ThrowTypeErrorOrFalse', 'JS_DupValue', 'get_shape_prop', 'js_same_value', 'JS_IsFunction', 'JS_IsException.28', 'JS_SetPropertyValue', '__JS_AtomToUInt32', 'JS_IsUndefined', 'js_shape_prepare_update', 'JS_FreeValue.22', 'check_define_prop_flags', 'set_array_length', 'convert_fast_array_to_array', 'JS_AutoInitProperty', 'set_value', '__JS_NewFloat64']	49961	91162	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9732
27270	154281	22 : View List ['js_parse_error', 'get_u32', 'js_parse_expr', 'js_parse_assign_expr', 'js_parse_template', 'JS_AtomToValue', 'emit_goto', 'token_is_ident', 'get_u16', 'has_with_scope', 'js_parse_expect', 'emit_source_pos', 'emit_atom', 'emit_label', 'optional_chain_test', 'next_token', 'JS_FreeValue.22', 'emit_u32', 'emit_class_field_init', 'emit_u16', 'emit_push_const', 'emit_op']	27292	154339	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:26053
17992	31503	15 : View List ['JS_NumberIsNegativeOrMinusZero', 'JS_IsException.28', '__JS_AtomIsTaggedInt', 'JS_SetPropertyValue', 'JS_AtomIsNumericIndex1', '__JS_AtomToUInt32', 'JS_NumberIsInteger', 'JS_IsUndefined', 'JS_ToArrayLengthFree', 'get_prop_flags', 'check_define_prop_flags', 'convert_fast_array_to_array', 'JS_CreateProperty', 'JS_AutoInitProperty', '__JS_NewFloat64']	49961	91162	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9565
9050	9092	4 : View List ['optimize_scope_make_ref', 'dbuf_put_u16', 'get_closure_var', 'can_opt_put_ref_value']	9050	9552	resolve_scope_var	call site: 00000	/src/quickjs/quickjs.c:31882
8990	8994	4 : View List ['JS_DupValue', 'JS_IsException.28', 'JS_ConcatString2', 'JS_FreeValue.22']	8990	22479	JS_ConcatString	call site: 02460	/src/quickjs/quickjs.c:4520
6560	97556	18 : View List ['dbuf_put', 'js_parse_expr2', 'push_break_entry', 'js_parse_expr', 'pop_break_entry', 'js_parse_var', 'emit_goto', 'is_let', 'close_scopes', 'js_parse_expect', 'new_label', 'emit_label', 'next_token', 'push_scope', 'dbuf_realloc', 'js_parse_statement', 'pop_scope', 'emit_op']	6560	97578	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:27736
6560	11073	2 : View List ['js_parse_function_decl', 'js_parse_error']	6560	11095	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:28184
6560	6560	1 : View List ['js_parse_object_literal']	33852	160899	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:25590
6560	6560	1 : View List ['js_parse_function_decl']	6560	6560	js_parse_source_element	call site: 00000	/src/quickjs/quickjs.c:30668
4796	9294	2 : View List ['js_parse_with_clause', 'add_req_module_entry']	4796	23375	js_parse_import	call site: 00000	/src/quickjs/quickjs.c:30539
4796	4796	1 : View List ['js_parse_with_clause']	4796	4796	js_parse_from_clause	call site: 00000	/src/quickjs/quickjs.c:30322
4753	4753	1 : View List ['js_std_dump_error']	4753	9573	test_one_input_init	call site: 05069	/src/quickjs/fuzz/fuzz_common.c:50

Runtime coverage analysis

Covered functions

670

Functions that are reachable but not covered

459

Reachable functions

958

Percentage of reachable functions covered

52.09%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzz_eval.c	1
quickjs.c	697
./list.h	6
./cutils.h	27
./quickjs.h	23
dtoa.c	37
cutils.c	17
./libunicode.h	9
libunicode.c	32
libregexp.c	48
fuzz/fuzz_common.c	3
quickjs-libc.c	32
/usr/include/x86_64-linux-gnu/bits/stdio.h	1

Fuzzer: fuzz_compile

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	3545	63.2%
gold	[1:9]	262	4.67%
yellow	[10:29]	645	11.5%
greenyellow	[30:49]	86	1.53%
lawngreen	50+	1067	19.0%
All colors	5605	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
40467	86667	25 : View List ['JS_NumberIsNegativeOrMinusZero', '__JS_AtomIsTaggedInt', 'JS_AtomIsNumericIndex1', 'js_update_property_flags', 'JS_NumberIsInteger', 'JS_ToArrayLengthFree', 'free_var_ref', 'get_prop_flags', 'JS_ThrowTypeErrorOrFalse', 'JS_DupValue', 'get_shape_prop', 'js_same_value', 'JS_IsFunction', 'JS_IsException.28', 'JS_SetPropertyValue', '__JS_AtomToUInt32', 'JS_IsUndefined', 'js_shape_prepare_update', 'JS_FreeValue.22', 'check_define_prop_flags', 'set_array_length', 'convert_fast_array_to_array', 'JS_AutoInitProperty', 'set_value', '__JS_NewFloat64']	40467	91162	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9732
13723	22749	9 : View List ['js_free', 'JS_Eval', 'JS_ParseJSON2', 'has_suffix', 'js_module_test_json', 'js_module_set_import_meta', 'JS_IsException.827', 'JS_FreeValue.829', 'create_json_module']	13723	22749	js_module_loader	call site: 04580	/src/quickjs/quickjs-libc.c:691
13497	31503	15 : View List ['JS_NumberIsNegativeOrMinusZero', 'JS_IsException.28', '__JS_AtomIsTaggedInt', 'JS_SetPropertyValue', 'JS_AtomIsNumericIndex1', '__JS_AtomToUInt32', 'JS_NumberIsInteger', 'JS_IsUndefined', 'JS_ToArrayLengthFree', 'get_prop_flags', 'check_define_prop_flags', 'convert_fast_array_to_array', 'JS_CreateProperty', 'JS_AutoInitProperty', '__JS_NewFloat64']	40467	91162	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9565
9041	20149	6 : View List ['add_export_entry', 'emit_u32', 'js_parse_property_name', 'JS_DupAtom', 'js_parse_check_duplicate_parameter', 'JS_ThrowInternalError']	22161	147608	js_parse_destructuring_element	call site: 00000	/src/quickjs/quickjs.c:24977
6560	6560	1 : View List ['js_parse_array_literal']	24754	160899	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:25590
6560	6560	1 : View List ['js_parse_left_hand_side_expr']	20084	196478	js_parse_class	call site: 00000	/src/quickjs/quickjs.c:23947
6560	6560	1 : View List ['js_parse_for_in_of']	6560	6582	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:27736
4796	9294	2 : View List ['js_parse_with_clause', 'add_req_module_entry']	4796	23375	js_parse_import	call site: 00000	/src/quickjs/quickjs.c:30539
4796	4796	1 : View List ['js_parse_with_clause']	4796	4796	js_parse_from_clause	call site: 00000	/src/quickjs/quickjs.c:30322
4753	4753	1 : View List ['js_std_dump_error']	4753	9573	test_one_input_init	call site: 05069	/src/quickjs/fuzz/fuzz_common.c:50
4520	13526	10 : View List ['js_free', 'js_limb_safe_clz', 'limb_to_a', 'js_bigint_sign', 'js_u64toa', 'mp_div1', 'js_malloc', 'js_bigint_new', 'js_bigint_neg', 'clz32']	4520	22516	js_bigint_to_string1	call site: 00765	/src/quickjs/quickjs.c:11917
4520	9118	2 : View List ['add_export_entry', 'define_var']	4520	13809	js_parse_function_decl2	call site: 00000	/src/quickjs/quickjs.c:35529

Runtime coverage analysis

Covered functions

768

Functions that are reachable but not covered

439

Reachable functions

1022

Percentage of reachable functions covered

57.05%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzz_compile.c	1
quickjs.c	760
./list.h	6
./cutils.h	28
./quickjs.h	23
dtoa.c	37
cutils.c	17
./libunicode.h	9
libunicode.c	32
libregexp.c	48
fuzz/fuzz_common.c	3
quickjs-libc.c	32
/usr/include/x86_64-linux-gnu/bits/stdio.h	1

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
__JS_EvalInternal	/src/quickjs/quickjs.c	8	['N/A', 'size_t', 'size_t', 'N/A', 'size_t', 'N/A', 'int', 'int']	96	0	385	58	20	812	0	7286	2664
js_json_stringify	/src/quickjs/quickjs.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	74	0	25	3	2	642	0	4783	273
js_regexp_Symbol_replace	/src/quickjs/quickjs.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	67	0	1027	126	51	647	0	5018	207
js_string_normalize	/src/quickjs/quickjs.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	66	0	190	31	13	630	0	4643	127
js_os_exec	/src/quickjs/quickjs-libc.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	69	0	875	161	60	629	0	4612	110
js_typed_array_indexOf	/src/quickjs/quickjs.c	6	['N/A', 'size_t', 'size_t', 'int', 'N/A', 'int']	52	0	1046	221	91	619	0	4616	108
JS_ComputeMemoryUsage	/src/quickjs/quickjs.c	2	['N/A', 'N/A']	3	0	1109	153	50	6	0	73	67
js_std_file_printf	/src/quickjs/quickjs-libc.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	71	0	35	6	3	622	0	4569	66
js_array_toSorted	/src/quickjs/quickjs.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	71	0	313	43	17	619	0	4580	63
js_object_groupBy	/src/quickjs/quickjs.c	6	['N/A', 'size_t', 'size_t', 'int', 'N/A', 'int']	67	0	435	50	21	629	0	4642	59

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

Functions statically reachable by fuzzers

1256 / 1779

Cyclomatic complexity statically reachable by fuzzers

11098 / 14614

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

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.

fuzz/fuzz_regexp.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=['unicode_case1', 'cr_op', 're_string_list_free', 'lre_canonicalize', 're_parse_nested_class', 'cr_op1', 're_emit_char', 'cr_regexp_canonicalize', 'get_class_atom', 're_emit_range']

fuzz/fuzz_eval.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=['re_string_list_free', 'JS_CallInternal', 'JS_ConcatString3', 'js_std_add_helpers', 'JS_AddIntrinsicDate', 'js_binary_arith_slow', 'string_buffer_concat_value_free', 'JS_AddIntrinsicTypedArrays', 'round_to_d', 'ident_realloc']

fuzz/fuzz_compile.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=['re_string_list_free', 'js_std_add_helpers', 'JS_CallInternal', 'JS_AddIntrinsicDate', 'JS_GetIterator', 'js_async_function_call', 'string_buffer_concat_value_free', 'JS_AddIntrinsicTypedArrays', 'ident_realloc']

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
exchange_func	33	14	42.42%	['fuzz_regexp', 'fuzz_compile', 'fuzz_eval']
re_string_list_op	42	12	28.57%	['fuzz_regexp', 'fuzz_compile', 'fuzz_eval']
re_emit_string_list	64	9	14.06%	['fuzz_regexp', 'fuzz_compile', 'fuzz_eval']
js_os_poll	98	14	14.28%	['fuzz_compile', 'fuzz_eval']
JS_GetPropertyInternal	138	64	46.37%	['fuzz_compile', 'fuzz_eval']
JS_SetPropertyInternal	250	50	20.0%	['fuzz_compile', 'fuzz_eval']
JS_DefineProperty	236	59	25.0%	['fuzz_compile', 'fuzz_eval']
JS_GetOwnPropertyNamesInternal	180	75	41.66%	['fuzz_compile', 'fuzz_eval']
JS_GetOwnPropertyInternal	70	18	25.71%	['fuzz_compile', 'fuzz_eval']
JS_GetPropertyValue	66	26	39.39%	['fuzz_compile', 'fuzz_eval']
JS_ToBoolFree	59	25	42.37%	['fuzz_compile', 'fuzz_eval']
JS_ToPrimitiveFree	69	34	49.27%	['fuzz_compile', 'fuzz_eval']
JS_ToInt64SatFree	38	13	34.21%	['fuzz_compile', 'fuzz_eval']
JS_ToStringInternal	54	23	42.59%	['fuzz_compile', 'fuzz_eval']
JS_ConcatString	72	13	18.05%	['fuzz_compile', 'fuzz_eval']
js_call_c_function	112	56	50.0%	['fuzz_compile', 'fuzz_eval']
JS_CallInternal	2471	765	30.95%	['fuzz_compile', 'fuzz_eval']
js_closure	42	23	54.76%	['fuzz_compile', 'fuzz_eval']
js_for_in_next	80	27	33.75%	['fuzz_compile', 'fuzz_eval']
js_for_in_prepare_prototype_chain_enum	52	23	44.23%	['fuzz_compile', 'fuzz_eval']
JS_GetIterator	31	15	48.38%	['fuzz_compile', 'fuzz_eval']
JS_IteratorNext2	31	17	54.83%	['fuzz_compile', 'fuzz_eval']
js_add_slow	103	56	54.36%	['fuzz_compile', 'fuzz_eval']
js_binary_arith_slow	178	87	48.87%	['fuzz_compile', 'fuzz_eval']
js_unary_arith_slow	134	32	23.88%	['fuzz_compile', 'fuzz_eval']
js_binary_logic_slow	153	81	52.94%	['fuzz_compile', 'fuzz_eval']
JS_CallConstructorInternal	40	15	37.5%	['fuzz_compile', 'fuzz_eval']
simple_next_token	81	41	50.61%	['fuzz_compile', 'fuzz_eval']
js_default_module_normalize_name	46	8	17.39%	['fuzz_compile', 'fuzz_eval']
js_inner_module_linking	130	70	53.84%	['fuzz_compile', 'fuzz_eval']
JS_ToObject	46	16	34.78%	['fuzz_compile', 'fuzz_eval']
js_string_define_own_property	32	11	34.37%	['fuzz_compile', 'fuzz_eval']
js_regexp_exec	185	57	30.81%	['fuzz_eval']
js_regexp_constructor	73	25	34.24%	['fuzz_compile', 'fuzz_eval']
js_promise_resolve_function_call	41	19	46.34%	['fuzz_compile', 'fuzz_eval']
fulfill_or_reject_promise	33	15	45.45%	['fuzz_compile', 'fuzz_eval']
js_async_function_resume	45	20	44.44%	['fuzz_compile', 'fuzz_eval']
js_parse_directives	77	22	28.57%	['fuzz_compile', 'fuzz_eval']
define_var	112	60	53.57%	['fuzz_compile', 'fuzz_eval']
js_parse_postfix_expr	579	295	50.94%	['fuzz_compile', 'fuzz_eval']
js_parse_array_literal	84	22	26.19%	['fuzz_eval']
js_parse_assign_expr2	233	39	16.73%	['fuzz_compile', 'fuzz_eval']
put_lvalue	97	52	53.60%	['fuzz_compile', 'fuzz_eval']
js_parse_import	125	29	23.20%	['fuzz_compile', 'fuzz_eval']
js_parse_statement_or_decl	626	265	42.33%	['fuzz_compile', 'fuzz_eval']
emit_return	68	17	25.0%	['fuzz_compile', 'fuzz_eval']
resolve_scope_var	382	204	53.40%	['fuzz_compile', 'fuzz_eval']
instantiate_hoisted_definitions	112	49	43.75%	['fuzz_compile', 'fuzz_eval']
ss_check	33	17	51.51%	['fuzz_compile', 'fuzz_eval']
js_array_join	50	27	54.0%	['fuzz_compile', 'fuzz_eval']
u64toa_radix	31	4	12.90%	['fuzz_compile', 'fuzz_eval']
js_load_file	41	8	19.51%	['fuzz_compile', 'fuzz_eval']
js_module_loader	43	14	32.55%	['fuzz_compile', 'fuzz_eval']
set_array_length	70	13	18.57%	['fuzz_compile', 'fuzz_eval']
JS_ToInt32SatFree	41	22	53.65%	['fuzz_compile']
JS_ToArrayLengthFree	54	17	31.48%	['fuzz_compile', 'fuzz_eval']
js_bigint_to_string1	86	8	9.302%	['fuzz_compile', 'fuzz_eval']
js_strict_eq2	118	18	15.25%	['fuzz_compile', 'fuzz_eval']
js_dynamic_import	88	30	34.09%	['fuzz_compile', 'fuzz_eval']
js_append_enumerate	62	16	25.80%	['fuzz_compile', 'fuzz_eval']
js_bigint_pow	75	38	50.66%	['fuzz_compile', 'fuzz_eval']
js_relational_slow	124	56	45.16%	['fuzz_compile', 'fuzz_eval']
js_eq_slow	113	37	32.74%	['fuzz_compile', 'fuzz_eval']
JS_LoadModuleInternal	36	15	41.66%	['fuzz_compile', 'fuzz_eval']
JS_WriteObjectRec	134	57	42.53%	['fuzz_compile']
JS_WriteModule	44	17	38.63%	['fuzz_compile']
JS_ReadObjectRec	107	43	40.18%	['fuzz_compile']
JS_ReadModule	103	25	24.27%	['fuzz_compile']
js_parse_function_decl2	463	206	44.49%	['fuzz_compile']
js_parse_destructuring_element	395	77	19.49%	['fuzz_compile']
js_parse_class	435	175	40.22%	['fuzz_compile']
js_parse_object_literal	106	12	11.32%	['fuzz_compile']
js_parse_property_name	106	39	36.79%	['fuzz_compile']
resolve_pseudo_var	31	17	54.83%	['fuzz_compile']
js_function_toString	38	10	26.31%	['fuzz_compile']

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/quickjs/fuzz/fuzz_eval.c	['fuzz_eval']	['fuzz_eval']
/src/quickjs/./quickjs.h	['fuzz_eval', 'fuzz_compile']	[]
/src/quickjs/dtoa.c	['fuzz_eval', 'fuzz_compile']	['fuzz_eval', 'fuzz_compile']
/src/quickjs/libunicode.c	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']
/usr/include/x86_64-linux-gnu/bits/stdio.h	['fuzz_eval', 'fuzz_compile']	[]
/src/quickjs/quickjs-libc.c	['fuzz_eval', 'fuzz_compile']	['fuzz_eval', 'fuzz_compile']
/usr/include/x86_64-linux-gnu/sys/stat.h	[]	[]
/src/quickjs/fuzz/fuzz_common.c	['fuzz_eval', 'fuzz_compile']	['fuzz_eval', 'fuzz_compile']
/src/quickjs/quickjs.c	['fuzz_eval', 'fuzz_compile']	['fuzz_eval', 'fuzz_compile']
/src/quickjs/libregexp.c	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']
/src/quickjs/./libunicode.h	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']	[]
/src/quickjs/cutils.c	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']
/src/quickjs/./list.h	['fuzz_eval', 'fuzz_compile']	[]
/src/quickjs/fuzz/fuzz_regexp.c	['fuzz_regexp']	['fuzz_regexp']
/usr/include/stdlib.h	[]	[]
/src/quickjs/fuzz/fuzz_compile.c	['fuzz_compile']	['fuzz_compile']
/src/quickjs/./cutils.h	['fuzz_regexp', 'fuzz_eval', 'fuzz_compile']	[]

Directories in report

Directory
/src/quickjs/./
/usr/include/x86_64-linux-gnu/bits/
/usr/include/
/src/quickjs/fuzz/
/usr/include/x86_64-linux-gnu/sys/
/src/quickjs/