High level conclusions

Fuzzers reach 50.43% of cyclomatic complexity.

Fuzzers reach 55.63% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

992 / 1783

Cyclomatic complexity statically reachable by fuzzers

7385 / 14644

Runtime code coverage of functions

757 / 1783

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	217	36.4%
gold	[1:9]	7	1.17%
yellow	[10:29]	6	1.00%
greenyellow	[30:49]	1	0.16%
lawngreen	50+	365	61.2%
All colors	596	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
0	209	7 : View List ['lre_realloc', 'put_u32', 'get_u32', 're_emit_char', 'rqsort', 're_parse_out_of_memory', 're_emit_op_u32']	0	283	re_emit_string_list	call site: 00385	/src/quickjs/libregexp.c:1223
0	18	1 : View List ['re_emit_op_u32']	0	18	re_emit_char	call site: 00403	/src/quickjs/libregexp.c:1210
0	4	1 : View List ['re_parse_error']	0	4	get_class_atom	call site: 00327	/src/quickjs/libregexp.c:1126
0	4	1 : View List ['re_parse_error']	0	4	re_emit_range	call site: 00386	/src/quickjs/libregexp.c:1171
0	2	1 : View List ['is_digit']	0	2	lre_parse_escape	call site: 00078	/src/quickjs/libregexp.c:764
0	0	None	1264	3660	re_parse_nested_class	call site: 00135	/src/quickjs/libregexp.c:1330
0	0	None	1264	3652	re_parse_nested_class	call site: 00140	/src/quickjs/libregexp.c:1388
0	0	None	21	28	rqsort	call site: 00308	/src/quickjs/cutils.c:538
0	0	None	0	1919	re_parse_disjunction	call site: 00027	/src/quickjs/libregexp.c:2359
0	0	None	0	1301	re_parse_term	call site: 00126	/src/quickjs/libregexp.c:1823
0	0	None	0	1281	re_parse_term	call site: 00417	/src/quickjs/libregexp.c:2089
0	0	None	0	722	re_parse_term	call site: 00126	/src/quickjs/libregexp.c:2024

Runtime coverage analysis

Covered functions

102

Functions that are reachable but not covered

32

Reachable functions

132

Percentage of reachable functions covered

75.76%

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	56
cutils.c	13
./cutils.h	13
./libunicode.h	7
libunicode.c	31

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	4182	74.9%
gold	[1:9]	959	17.1%
yellow	[10:29]	108	1.93%
greenyellow	[30:49]	41	0.73%
lawngreen	50+	292	5.23%
All colors	5582	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
62690	154523	22 : View List ['js_parse_expr', 'emit_source_pos', 'emit_push_const', 'emit_atom', 'token_is_ident', 'JS_AtomToValue', 'emit_goto', 'js_parse_expect', 'emit_u16', 'js_parse_template', 'js_parse_error', 'optional_chain_test', 'get_u32', 'next_token', 'JS_FreeValue.22', 'emit_class_field_init', 'emit_op', 'emit_label', 'has_with_scope', 'emit_u32', 'get_u16', 'js_parse_assign_expr']	62712	154581	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:25825
62690	154523	22 : View List ['js_parse_expr', 'emit_source_pos', 'emit_push_const', 'emit_atom', 'token_is_ident', 'JS_AtomToValue', 'emit_goto', 'js_parse_expect', 'emit_u16', 'js_parse_template', 'js_parse_error', 'optional_chain_test', 'get_u32', 'next_token', 'JS_FreeValue.22', 'emit_class_field_init', 'emit_op', 'emit_label', 'has_with_scope', 'emit_u32', 'get_u16', 'js_parse_assign_expr']	62712	154581	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:26161
22530	31552	15 : View List ['__JS_AtomIsTaggedInt', 'JS_ToArrayLengthFree', 'JS_SetPropertyValue', 'JS_CreateProperty', 'JS_AutoInitProperty', 'check_define_prop_flags', 'JS_NumberIsInteger', 'JS_IsException.30', 'JS_AtomIsNumericIndex1', 'convert_fast_array_to_array', 'JS_IsUndefined', '__JS_NewFloat64', 'JS_NumberIsNegativeOrMinusZero', '__JS_AtomToUInt32', 'get_prop_flags']	54548	91302	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9592
9064	9106	4 : View List ['can_opt_put_ref_value', 'get_closure_var', 'optimize_scope_make_ref', 'dbuf_put_u16']	9101	9566	resolve_scope_var	call site: 00000	/src/quickjs/quickjs.c:31990
9004	27030	9 : View List ['string_buffer_free', 'unicode_from_utf8', 'string_buffer_write8', 'string_buffer_init', 'string_buffer_putc8', 'string_buffer_end', 'get_lo_surrogate', 'string_buffer_putc16', 'get_hi_surrogate']	9004	27030	JS_NewStringLen	call site: 00389	/src/quickjs/quickjs.c:3847
9004	9004	2 : View List ['JS_CallFree', 'js_closure']	9004	9004	JS_EvalFunctionInternal	call site: 01694	/src/quickjs/quickjs.c:35813
6572	11092	2 : View List ['js_parse_error', 'js_parse_function_decl']	6572	11114	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:28292
6572	6572	1 : View List ['js_parse_function_decl']	6572	6572	js_parse_source_element	call site: 00000	/src/quickjs/quickjs.c:30776
4803	9308	2 : View List ['js_parse_with_clause', 'add_req_module_entry']	4803	23410	js_parse_import	call site: 00000	/src/quickjs/quickjs.c:30647
4803	4803	1 : View List ['js_parse_with_clause']	4803	4803	js_parse_from_clause	call site: 00000	/src/quickjs/quickjs.c:30430
4754	4754	1 : View List ['js_std_dump_error']	4754	9575	test_one_input_init	call site: 05047	/src/quickjs/fuzz/fuzz_common.c:50
4522	4522	1 : View List ['js_parse_error_reserved_identifier']	4537	107541	js_parse_import	call site: 00000	/src/quickjs/quickjs.c:30664

Runtime coverage analysis

Covered functions

535

Functions that are reachable but not covered

592

Reachable functions

1020

Percentage of reachable functions covered

41.96%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzz_compile.c	1
quickjs.c	757
./list.h	6
./cutils.h	28
./quickjs.h	23
dtoa.c	37
cutils.c	17
./libunicode.h	9
libunicode.c	32
libregexp.c	49
fuzz/fuzz_common.c	3
quickjs-libc.c	32
/usr/include/x86_64-linux-gnu/bits/stdio.h	1

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	3495	68.0%
gold	[1:9]	331	6.44%
yellow	[10:29]	535	10.4%
greenyellow	[30:49]	23	0.44%
lawngreen	50+	752	14.6%
All colors	5136	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
50038	86800	25 : View List ['set_value', 'JS_ToArrayLengthFree', 'JS_ThrowTypeErrorOrFalse', 'js_update_property_flags', 'js_same_value', 'JS_NumberIsInteger', 'convert_fast_array_to_array', 'js_shape_prepare_update', 'JS_IsFunction', 'get_prop_flags', '__JS_AtomIsTaggedInt', 'JS_DupValue', 'set_array_length', 'JS_FreeValue.22', 'JS_SetPropertyValue', 'free_var_ref', 'get_shape_prop', 'JS_AutoInitProperty', 'check_define_prop_flags', 'JS_IsException.30', 'JS_AtomIsNumericIndex1', 'JS_IsUndefined', '__JS_NewFloat64', 'JS_NumberIsNegativeOrMinusZero', '__JS_AtomToUInt32']	50038	91302	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9759
27312	154523	22 : View List ['js_parse_expr', 'emit_source_pos', 'emit_push_const', 'emit_atom', 'token_is_ident', 'JS_AtomToValue', 'emit_goto', 'js_parse_expect', 'emit_u16', 'js_parse_template', 'js_parse_error', 'optional_chain_test', 'get_u32', 'next_token', 'JS_FreeValue.22', 'emit_class_field_init', 'emit_op', 'emit_label', 'has_with_scope', 'emit_u32', 'get_u16', 'js_parse_assign_expr']	27334	154581	js_parse_postfix_expr	call site: 00000	/src/quickjs/quickjs.c:26161
18020	31552	15 : View List ['__JS_AtomIsTaggedInt', 'JS_ToArrayLengthFree', 'JS_SetPropertyValue', 'JS_CreateProperty', 'JS_AutoInitProperty', 'check_define_prop_flags', 'JS_NumberIsInteger', 'JS_IsException.30', 'JS_AtomIsNumericIndex1', 'convert_fast_array_to_array', 'JS_IsUndefined', '__JS_NewFloat64', 'JS_NumberIsNegativeOrMinusZero', '__JS_AtomToUInt32', 'get_prop_flags']	50038	91302	JS_DefineProperty	call site: 00445	/src/quickjs/quickjs.c:9592
9064	9106	4 : View List ['can_opt_put_ref_value', 'get_closure_var', 'optimize_scope_make_ref', 'dbuf_put_u16']	9064	9566	resolve_scope_var	call site: 00000	/src/quickjs/quickjs.c:31990
9004	9008	4 : View List ['JS_ConcatString2', 'JS_IsException.30', 'JS_DupValue', 'JS_FreeValue.22']	9004	22514	JS_ConcatString	call site: 02461	/src/quickjs/quickjs.c:4537
6572	97714	18 : View List ['close_scopes', 'js_parse_expr', 'dbuf_realloc', 'dbuf_put', 'pop_break_entry', 'emit_goto', 'pop_scope', 'js_parse_expect', 'new_label', 'js_parse_expr2', 'next_token', 'is_let', 'js_parse_statement', 'emit_op', 'emit_label', 'push_scope', 'push_break_entry', 'js_parse_var']	6572	97736	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:27844
6572	11092	2 : View List ['js_parse_error', 'js_parse_function_decl']	6572	11114	js_parse_statement_or_decl	call site: 00000	/src/quickjs/quickjs.c:28292
6572	6572	1 : View List ['js_parse_function_decl']	6572	6572	js_parse_source_element	call site: 00000	/src/quickjs/quickjs.c:30776
4803	9308	2 : View List ['js_parse_with_clause', 'add_req_module_entry']	4803	23410	js_parse_import	call site: 00000	/src/quickjs/quickjs.c:30647
4803	4803	1 : View List ['js_parse_with_clause']	4803	4803	js_parse_from_clause	call site: 00000	/src/quickjs/quickjs.c:30430
4754	4754	1 : View List ['js_std_dump_error']	4754	9575	test_one_input_init	call site: 05047	/src/quickjs/fuzz/fuzz_common.c:50
4754	4754	2 : View List ['JS_ThrowTypeErrorInvalidClass', 'js_same_value']	4754	4754	js_regexp_get_flag	call site: 00000	/src/quickjs/quickjs.c:45132

Runtime coverage analysis

Covered functions

695

Functions that are reachable but not covered

439

Reachable functions

956

Percentage of reachable functions covered

54.08%

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	694
./list.h	6
./cutils.h	27
./quickjs.h	23
dtoa.c	37
cutils.c	17
./libunicode.h	9
libunicode.c	32
libregexp.c	49
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	814	0	7298	2669
js_json_stringify	/src/quickjs/quickjs.c	5	['N/A', 'size_t', 'size_t', 'int', 'N/A']	74	0	25	3	2	642	0	4790	280
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	5030	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	4650	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	4619	110
js_typed_array_indexOf	/src/quickjs/quickjs.c	6	['N/A', 'size_t', 'size_t', 'int', 'N/A', 'int']	52	0	1020	215	88	619	0	4620	105
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	4576	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	4587	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	4649	59

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

Functions statically reachable by fuzzers

1258 / 1783

Cyclomatic complexity statically reachable by fuzzers

11114 / 14644

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_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=['JS_CallInternal', 'lre_is_id_continue', 'js_std_add_helpers', 'JS_AddIntrinsicDate', 'JS_ReadModule', 'round_to_d', 'js_async_function_call', 'string_buffer_putc']

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_AddIntrinsicDate', 'js_binary_arith_slow', 'JS_AddIntrinsicTypedArrays', 'round_to_d', 'ident_realloc', 'js_async_function_resume', 'js_print_more_items']

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_compile', 'fuzz_regexp', 'fuzz_eval']
re_string_list_op	42	12	28.57%	['fuzz_compile', 'fuzz_regexp', 'fuzz_eval']
re_emit_string_list	64	9	14.06%	['fuzz_compile', 'fuzz_regexp', 'fuzz_eval']
js_os_poll	98	14	14.28%	['fuzz_compile', 'fuzz_eval']
JS_ExecutePendingJob	31	10	32.25%	['fuzz_compile', 'fuzz_eval']
JS_GetPropertyInternal	138	62	44.92%	['fuzz_compile', 'fuzz_eval']
JS_SetPropertyInternal	250	46	18.4%	['fuzz_compile', 'fuzz_eval']
JS_DefineProperty	236	35	14.83%	['fuzz_compile', 'fuzz_eval']
is_num_string	31	13	41.93%	['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_ToStringInternal	54	20	37.03%	['fuzz_compile', 'fuzz_eval']
JS_CallInternal	2469	460	18.63%	['fuzz_compile', 'fuzz_eval']
simple_next_token	81	34	41.97%	['fuzz_compile', 'fuzz_eval']
js_host_resolve_imported_module	39	17	43.58%	['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_WriteObjectRec	134	25	18.65%	['fuzz_compile']
JS_WriteModule	44	17	38.63%	['fuzz_compile']
JS_ReadObjectRec	107	27	25.23%	['fuzz_compile']
JS_ReadModule	103	25	24.27%	['fuzz_compile']
js_string_define_own_property	32	11	34.37%	['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']
push_scope	32	13	40.62%	['fuzz_compile', 'fuzz_eval']
next_token	417	188	45.08%	['fuzz_compile', 'fuzz_eval']
js_parse_directives	77	22	28.57%	['fuzz_compile', 'fuzz_eval']
js_parse_postfix_expr	579	188	32.46%	['fuzz_compile', 'fuzz_eval']
js_parse_assign_expr2	233	33	14.16%	['fuzz_compile', 'fuzz_eval']
js_parse_logical_and_or	35	12	34.28%	['fuzz_compile', 'fuzz_eval']
js_parse_expr_binary	161	82	50.93%	['fuzz_compile', 'fuzz_eval']
js_parse_unary	129	45	34.88%	['fuzz_compile', 'fuzz_eval']
get_lvalue	109	49	44.95%	['fuzz_compile', 'fuzz_eval']
put_lvalue	97	34	35.05%	['fuzz_compile', 'fuzz_eval']
js_parse_import	125	29	23.20%	['fuzz_compile', 'fuzz_eval']
js_parse_statement_or_decl	626	90	14.37%	['fuzz_compile', 'fuzz_eval']
emit_return	68	17	25.0%	['fuzz_compile', 'fuzz_eval']
resolve_variables	312	128	41.02%	['fuzz_compile', 'fuzz_eval']
resolve_scope_var	382	113	29.58%	['fuzz_compile', 'fuzz_eval']
skip_dead_code	38	20	52.63%	['fuzz_compile', 'fuzz_eval']
instantiate_hoisted_definitions	112	28	25.0%	['fuzz_compile', 'fuzz_eval']
resolve_labels	773	267	34.54%	['fuzz_compile', 'fuzz_eval']
ss_check	33	17	51.51%	['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_print_value	116	26	22.41%	['fuzz_compile', 'fuzz_eval']
js_print_object	223	64	28.69%	['fuzz_compile', 'fuzz_eval']
js_call_c_function	112	51	45.53%	['fuzz_eval']
js_closure	42	17	40.47%	['fuzz_compile', 'fuzz_eval']
js_closure2	32	11	34.37%	['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	12	38.70%	['fuzz_compile', 'fuzz_eval']
JS_IteratorNext2	31	17	54.83%	['fuzz_compile', 'fuzz_eval']
JS_ConcatString	72	13	18.05%	['fuzz_compile', 'fuzz_eval']
js_add_slow	103	22	21.35%	['fuzz_compile', 'fuzz_eval']
js_binary_arith_slow	178	33	18.53%	['fuzz_compile', 'fuzz_eval']
js_unary_arith_slow	134	27	20.14%	['fuzz_compile', 'fuzz_eval']
js_binary_logic_slow	153	29	18.95%	['fuzz_compile', 'fuzz_eval']
JS_CallConstructorInternal	40	15	37.5%	['fuzz_compile', 'fuzz_eval']
JS_ToObject	46	16	34.78%	['fuzz_compile', 'fuzz_eval']
js_compile_regexp	69	37	53.62%	['fuzz_compile', 'fuzz_eval']
js_regexp_exec	185	97	52.43%	['fuzz_eval']
js_regexp_constructor	73	25	34.24%	['fuzz_compile', 'fuzz_eval']
define_var	112	43	38.39%	['fuzz_eval']
js_parse_regexp	100	46	46.0%	['fuzz_eval']
js_parse_object_literal	106	12	11.32%	['fuzz_eval']
js_parse_array_literal	84	38	45.23%	['fuzz_eval']
js_define_var	34	16	47.05%	['fuzz_eval']
optimize_scope_make_global_ref	51	27	52.94%	['fuzz_eval']
put_short_code	56	26	46.42%	['fuzz_eval']
js_array_join	50	27	54.0%	['fuzz_eval']

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

Directories in report

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