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| author | Kaipeng Zeng <kaipeng94@gmail.com> | 2020-08-06 01:32:00 -0400 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-12-06 11:57:18 +0100 |
| commit | c521566d3f377ad8c69075d3de190738fd12368c (patch) | |
| tree | 6254ab407c8225d2145723420811239b5ff20a8a /executor/test.h | |
| parent | 6d371461fd1b83fcfcb86578f504c52134e2df25 (diff) | |
syz-manager/manager.go, executor/executor.cc: support coverage filter
Diffstat (limited to 'executor/test.h')
| -rw-r--r-- | executor/test.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/executor/test.h b/executor/test.h index 37d03b65a..c8492ed73 100644 --- a/executor/test.h +++ b/executor/test.h @@ -201,6 +201,39 @@ static int test_csum_inet_acc() return 0; } +static int test_coverage_filter() +{ + struct tmp_cov_filter_t { + uint32 pcstart; + uint32 pcsize; + uint8 bitmap[((0x1000 >> 4) + 7) / 8]; + }; + static struct tmp_cov_filter_t tmp_cov_filter; + tmp_cov_filter.pcstart = 0x81000000; + tmp_cov_filter.pcsize = 0x1000; + memset(tmp_cov_filter.bitmap, 0, ((0x1000 >> 4) + 7) / 8); + cov_filter = (cov_filter_t*)&tmp_cov_filter; + + uint64 full_enable_pc = 0xffffffff81000765; + uint64 full_disable_pc = 0xffffffff81000627; + uint64 full_out_pc = 0xffffffff82000000; + + uint32 enable_pc = (uint32)full_enable_pc & 0xffffffff; + uint32 idx = ((enable_pc - cov_filter->pcstart) >> 4) / 8; + uint32 shift = ((enable_pc - cov_filter->pcstart) >> 4) % 8; + cov_filter->bitmap[idx] |= (1 << shift); + + if (!coverage_filter(full_enable_pc)) + return 1; + if (coverage_filter(full_disable_pc)) + return 1; + if (coverage_filter(full_out_pc)) + return 1; + + cov_filter = NULL; + return 0; +} + static struct { const char* name; int (*f)(); @@ -211,6 +244,7 @@ static struct { #if GOOS_linux && (GOARCH_amd64 || GOARCH_ppc64 || GOARCH_ppc64le) {"test_kvm", test_kvm}, #endif + {"test_coverage_filter", test_coverage_filter}, }; static int run_tests() |