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Add debug output to alert user to calibration progress/issues (#969)

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This commit is contained in:
Dustin Spicuzza
2021-06-14 15:21:01 -04:00
committed by GitHub
parent 74fcb365e9
commit ef5fd33120
1 changed files with 11 additions and 0 deletions
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11
src/afl-fuzz-run.c
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@ -355,6 +355,8 @@ u8 calibrate_case(afl_state_t *afl, struct queue_entry *q, u8 *use_mem,
for (afl->stage_cur = 0; afl->stage_cur < afl->stage_max; ++afl->stage_cur) { for (afl->stage_cur = 0; afl->stage_cur < afl->stage_max; ++afl->stage_cur) {
if (unlikely(afl->debug)) { DEBUGF("calibration stage %d/%d\n", afl->stage_cur+1, afl->stage_max); }
u64 cksum; u64 cksum;
write_to_testcase(afl, use_mem, q->len); write_to_testcase(afl, use_mem, q->len);
@ -402,6 +404,15 @@ u8 calibrate_case(afl_state_t *afl, struct queue_entry *q, u8 *use_mem,
} }
if (unlikely(!var_detected)) {
// note: from_queue seems to only be set during initialization
if (afl->afl_env.afl_no_ui || from_queue) {
WARNF("instability detected during calibration\n");
} else if (afl->debug) {
DEBUGF("instability detected during calibration\n");
}
}
var_detected = 1; var_detected = 1;
afl->stage_max = afl->stage_max =
afl->afl_env.afl_cal_fast ? CAL_CYCLES : CAL_CYCLES_LONG; afl->afl_env.afl_cal_fast ? CAL_CYCLES : CAL_CYCLES_LONG;