Fuzz introspector: io
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
2 3 fuzz_run_on_r_thread call site: 00003 fprintf
2 17 fuzz_r_thread_main call site: 00017 fprintf
1 42 run_io call site: 00042 abort

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_run_on_r_thread [function] [call site] 00001
2 pthread_atfork [call site] 00002
2 fuzz_r_thread_forget [function] [call site] 00003
2 fprintf [call site] 00004
2 abort [call site] 00005
2 pthread_attr_init [call site] 00006
2 pthread_attr_setstacksize [call site] 00007
2 pthread_create [call site] 00008
2 fuzz_r_thread_main [function] [call site] 00009
3 sigemptyset [call site] 00010
3 sigaddset [call site] 00011
3 pthread_sigmask [call site] 00012
3 pthread_mutex_lock [call site] 00013
3 pthread_cond_wait [call site] 00014
3 pthread_mutex_unlock [call site] 00015
3 pthread_mutex_lock [call site] 00016
3 pthread_cond_broadcast [call site] 00017
2 fprintf [call site] 00018
2 abort [call site] 00019
2 pthread_attr_destroy [call site] 00020
2 fuzz_on_r_thread [function] [call site] 00021
3 pthread_self [call site] 00022
3 pthread_equal [call site] 00023
2 pthread_mutex_lock [call site] 00024
2 pthread_cond_broadcast [call site] 00025
2 pthread_cond_wait [call site] 00026
2 pthread_mutex_unlock [call site] 00027
1 fuzz_do_target_run [function] [call site] 00028
2 fuzz_target_run [function] [call site] 00029
3 R_ToplevelExec [call site] 00030
3 run_io [function] [call site] 00031
4 Rf_allocVector [call site] 00032
4 Rf_protect [call site] 00033
4 RAW [call site] 00034
4 SETCADR [call site] 00035
4 R_tryEvalSilent [call site] 00036
4 SETCADR [call site] 00037
4 R_tryEvalSilent [call site] 00038
4 SETCADR [call site] 00039
4 R_tryEvalSilent [call site] 00040
4 Rf_protect [call site] 00041
4 R_compute_identical [call site] 00042
4 abort [call site] 00043
4 Rf_unprotect [call site] 00044
4 Rf_unprotect [call site] 00045
3 fuzz_set_raw_arg [function] [call site] 00046
4 R_ToplevelExec [call site] 00047
4 fuzz_do_set_raw [function] [call site] 00048
5 Rf_allocVector [call site] 00049
5 SETCADR [call site] 00050
5 RAW [call site] 00051
3 fuzz_eval_silent [function] [call site] 00052
4 R_tryEvalSilent [call site] 00053