diff options
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_coverage.cc | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage.cc b/compiler-rt/lib/sanitizer_common/sanitizer_coverage.cc index 352f851749a..49235fe5225 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage.cc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage.cc @@ -95,9 +95,13 @@ void CovDump() { module_name, internal_getpid()); InternalFree(module_name); uptr fd = OpenFile(path.data(), true); - internal_write(fd, offsets.data(), offsets.size() * sizeof(u32)); - internal_close(fd); - VReport(1, " CovDump: %s: %zd PCs written\n", path.data(), vb - old_vb); + if (internal_iserror(fd)) { + Report(" CovDump: failed to open %s for writing\n", path.data()); + } else { + internal_write(fd, offsets.data(), offsets.size() * sizeof(u32)); + internal_close(fd); + VReport(1, " CovDump: %s: %zd PCs written\n", path.data(), vb - old_vb); + } } } #endif // !SANITIZER_WINDOWS |
