Support tracing fuzzers

Makefile

@@ -95,6 +95,16 @@ LDXX_opt = $(DEFAULT_CXX)
 CPPFLAGS_opt = -O2
 DEFINES_opt = NDEBUG
+VALID_CONFIG_asan-trace-cmp = 1
+REQUIRE_CUSTOM_LIBRARIES_asan-trace-cmp = 1
+CC_asan-trace-cmp = clang
+CXX_asan-trace-cmp = clang++
+LD_asan-trace-cmp = clang
+LDXX_asan-trace-cmp = clang++
+CPPFLAGS_asan-trace-cmp = -O0 -fsanitize-coverage=trace-cmp -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
+LDFLAGS_asan-trace-cmp = -fsanitize=address
+DEFINES_asan-trace-cmp += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=3
+
 VALID_CONFIG_dbg = 1
 CC_dbg = $(DEFAULT_CC)
 CXX_dbg = $(DEFAULT_CXX)

build.yaml

@@ -2846,6 +2846,19 @@ configs:
     test_environ:
       ASAN_OPTIONS: detect_leaks=0:color=always
     timeout_multiplier: 3
+  asan-trace-cmp:
+    CC: clang
+    CPPFLAGS: -O0 -fsanitize-coverage=trace-cmp -fsanitize=address -fno-omit-frame-pointer
+      -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
+    CXX: clang++
+    LD: clang
+    LDFLAGS: -fsanitize=address
+    LDXX: clang++
+    compile_the_world: true
+    test_environ:
+      ASAN_OPTIONS: detect_leaks=1:color=always
+      LSAN_OPTIONS: suppressions=tools/lsan_suppressions.txt:report_objects=1
+    timeout_multiplier: 3
   basicprof:
     CPPFLAGS: -O2 -DGRPC_BASIC_PROFILER -DGRPC_TIMERS_RDTSC
     DEFINES: NDEBUG

templates/tools/fuzzer/runners.template

@@ -35,4 +35,10 @@ template: |
   # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   #
 
-  bins/$config/${selected.name} -max_total_time=3600 fuzzer_output ${' '.join(selected.corpus_dirs)}
+  flags="-max_total_time=3600"
+  if [ "$config" == "asan-trace-cmp" ]
+  then
+    flags="-use_traces=1 $flags"
+  fi
+
+  bins/$config/${selected.name} $flags fuzzer_output ${' '.join(selected.corpus_dirs)}

tools/fuzzer/runners/hpack_parser_fuzzer_test.sh

@@ -29,4 +29,10 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-bins/$config/hpack_parser_fuzzer_test -max_total_time=3600 fuzzer_output test/core/transport/chttp2/hpack_parser_corpus
+flags="-max_total_time=3600"
+if [ "$config" == "asan-trace-cmp" ]
+then
+  flags="-use_traces=1 $flags"
+fi
+
+bins/$config/hpack_parser_fuzzer_test $flags fuzzer_output test/core/transport/chttp2/hpack_parser_corpus

tools/fuzzer/runners/http_fuzzer_test.sh

@@ -29,4 +29,10 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-bins/$config/http_fuzzer_test -max_total_time=3600 fuzzer_output test/core/http/corpus
+flags="-max_total_time=3600"
+if [ "$config" == "asan-trace-cmp" ]
+then
+  flags="-use_traces=1 $flags"
+fi
+
+bins/$config/http_fuzzer_test $flags fuzzer_output test/core/http/corpus

tools/fuzzer/runners/json_fuzzer_test.sh

@@ -29,4 +29,10 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-bins/$config/json_fuzzer_test -max_total_time=3600 fuzzer_output test/core/json/corpus
+flags="-max_total_time=3600"
+if [ "$config" == "asan-trace-cmp" ]
+then
+  flags="-use_traces=1 $flags"
+fi
+
+bins/$config/json_fuzzer_test $flags fuzzer_output test/core/json/corpus

tools/fuzzer/runners/uri_fuzzer_test.sh

@@ -29,4 +29,10 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-bins/$config/uri_fuzzer_test -max_total_time=3600 fuzzer_output test/core/client_config/uri_corpus
+flags="-max_total_time=3600"
+if [ "$config" == "asan-trace-cmp" ]
+then
+  flags="-use_traces=1 $flags"
+fi
+
+bins/$config/uri_fuzzer_test $flags fuzzer_output test/core/client_config/uri_corpus

tools/run_tests/configs.json

@@ -2,6 +2,14 @@
   {
     "config": "opt"
   }, 
+  {
+    "config": "asan-trace-cmp", 
+    "environ": {
+      "ASAN_OPTIONS": "detect_leaks=1:color=always", 
+      "LSAN_OPTIONS": "suppressions=tools/lsan_suppressions.txt:report_objects=1"
+    }, 
+    "timeout_multiplier": 3
+  }, 
   {
     "config": "dbg"
   },