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selective instrumentation documented

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This commit is contained in:
van Hauser
2021-01-05 12:30:26 +01:00
parent caf1fbd632
commit 6b54310452
4 changed files with 55 additions and 21 deletions
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14
src/afl-cc.c
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@ -827,6 +827,20 @@ static void edit_params(u32 argc, char **argv, char **envp) {
"extern unsigned char *__afl_fuzz_ptr;"
"unsigned char __afl_fuzz_alt[1048576];"
"unsigned char *__afl_fuzz_alt_ptr = __afl_fuzz_alt;";
cc_params[cc_par_cnt++] =
"-D__AFL_COVERAGE()=int __afl_selective_coverage = 1;"
"void __afl_coverage_discard();"
"void __afl_coverage_abort();"
"void __afl_coverage_on();"
"void __afl_coverage_off();";
cc_params[cc_par_cnt++] =
"-D__AFL_COVERAGE_START_OFF()=int __afl_selective_coverage_start_off = "
"1;";
cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_ON()=__afl_coverage_on()";
cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_OFF()=__afl_coverage_off()";
cc_params[cc_par_cnt++] =
"-D__AFL_COVERAGE_DISCARD()=__afl_coverage_discard()";
cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_ABORT()=__afl_coverage_abort()";
cc_params[cc_par_cnt++] =
"-D__AFL_FUZZ_TESTCASE_BUF=(__afl_fuzz_ptr ? __afl_fuzz_ptr : "
"__afl_fuzz_alt_ptr)";