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-rw-r--r--debuggerd/debuggerd_test.cpp105
1 files changed, 68 insertions, 37 deletions
diff --git a/debuggerd/debuggerd_test.cpp b/debuggerd/debuggerd_test.cpp
index 46342831c..24804d046 100644
--- a/debuggerd/debuggerd_test.cpp
+++ b/debuggerd/debuggerd_test.cpp
@@ -51,6 +51,7 @@
#include <android-base/test_utils.h>
#include <android-base/unique_fd.h>
#include <cutils/sockets.h>
+#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <libminijail.h>
@@ -65,6 +66,7 @@ using namespace std::chrono_literals;
using android::base::SendFileDescriptors;
using android::base::unique_fd;
+using ::testing::HasSubstr;
#if defined(__LP64__)
#define ARCH_SUFFIX "64"
@@ -307,6 +309,19 @@ static void ConsumeFd(unique_fd fd, std::string* output) {
*output = std::move(result);
}
+class LogcatCollector {
+ public:
+ LogcatCollector() { system("logcat -c"); }
+
+ void Collect(std::string* output) {
+ FILE* cmd_stdout = popen("logcat -d '*:S DEBUG'", "r");
+ ASSERT_NE(cmd_stdout, nullptr);
+ unique_fd tmp_fd(TEMP_FAILURE_RETRY(dup(fileno(cmd_stdout))));
+ ConsumeFd(std::move(tmp_fd), output);
+ pclose(cmd_stdout);
+ }
+};
+
TEST_F(CrasherTest, smoke) {
int intercept_result;
unique_fd output_fd;
@@ -441,6 +456,7 @@ TEST_P(GwpAsanCrasherTest, gwp_asan_uaf) {
}
GwpAsanTestParameters params = GetParam();
+ LogcatCollector logcat_collector;
int intercept_result;
unique_fd output_fd;
@@ -460,17 +476,18 @@ TEST_P(GwpAsanCrasherTest, gwp_asan_uaf) {
ASSERT_EQ(1, intercept_result) << "tombstoned reported failure";
- std::string result;
- ConsumeFd(std::move(output_fd), &result);
+ std::vector<std::string> log_sources(2);
+ ConsumeFd(std::move(output_fd), &log_sources[0]);
+ logcat_collector.Collect(&log_sources[1]);
- ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\), code 2 \(SEGV_ACCERR\))");
- ASSERT_MATCH(result, R"(Cause: \[GWP-ASan\]: )" + params.cause_needle);
- if (params.free_before_access) {
- ASSERT_MATCH(result, R"(deallocated by thread .*
- #00 pc)");
+ for (const auto& result : log_sources) {
+ ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\), code 2 \(SEGV_ACCERR\))");
+ ASSERT_MATCH(result, R"(Cause: \[GWP-ASan\]: )" + params.cause_needle);
+ if (params.free_before_access) {
+ ASSERT_MATCH(result, R"(deallocated by thread .*\n.*#00 pc)");
+ }
+ ASSERT_MATCH(result, R"((^|\s)allocated by thread .*\n.*#00 pc)");
}
- ASSERT_MATCH(result, R"(allocated by thread .*
- #00 pc)");
}
struct SizeParamCrasherTest : CrasherTest, testing::WithParamInterface<size_t> {};
@@ -488,6 +505,8 @@ TEST_P(SizeParamCrasherTest, mte_uaf) {
return;
}
+ LogcatCollector logcat_collector;
+
int intercept_result;
unique_fd output_fd;
StartProcess([&]() {
@@ -504,16 +523,17 @@ TEST_P(SizeParamCrasherTest, mte_uaf) {
ASSERT_EQ(1, intercept_result) << "tombstoned reported failure";
- std::string result;
- ConsumeFd(std::move(output_fd), &result);
+ std::vector<std::string> log_sources(2);
+ ConsumeFd(std::move(output_fd), &log_sources[0]);
+ logcat_collector.Collect(&log_sources[1]);
- ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
- ASSERT_MATCH(result, R"(Cause: \[MTE\]: Use After Free, 0 bytes into a )" +
- std::to_string(GetParam()) + R"(-byte allocation)");
- ASSERT_MATCH(result, R"(deallocated by thread .*
- #00 pc)");
- ASSERT_MATCH(result, R"(allocated by thread .*
- #00 pc)");
+ for (const auto& result : log_sources) {
+ ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
+ ASSERT_MATCH(result, R"(Cause: \[MTE\]: Use After Free, 0 bytes into a )" +
+ std::to_string(GetParam()) + R"(-byte allocation)");
+ ASSERT_MATCH(result, R"(deallocated by thread .*?\n.*#00 pc)");
+ ASSERT_MATCH(result, R"((^|\s)allocated by thread .*?\n.*#00 pc)");
+ }
#else
GTEST_SKIP() << "Requires aarch64";
#endif
@@ -557,6 +577,7 @@ TEST_P(SizeParamCrasherTest, mte_overflow) {
GTEST_SKIP() << "Requires MTE";
}
+ LogcatCollector logcat_collector;
int intercept_result;
unique_fd output_fd;
StartProcess([&]() {
@@ -572,14 +593,16 @@ TEST_P(SizeParamCrasherTest, mte_overflow) {
ASSERT_EQ(1, intercept_result) << "tombstoned reported failure";
- std::string result;
- ConsumeFd(std::move(output_fd), &result);
+ std::vector<std::string> log_sources(2);
+ ConsumeFd(std::move(output_fd), &log_sources[0]);
+ logcat_collector.Collect(&log_sources[1]);
- ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
- ASSERT_MATCH(result, R"(Cause: \[MTE\]: Buffer Overflow, 0 bytes right of a )" +
- std::to_string(GetParam()) + R"(-byte allocation)");
- ASSERT_MATCH(result, R"(allocated by thread .*
- #00 pc)");
+ for (const auto& result : log_sources) {
+ ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
+ ASSERT_MATCH(result, R"(Cause: \[MTE\]: Buffer Overflow, 0 bytes right of a )" +
+ std::to_string(GetParam()) + R"(-byte allocation)");
+ ASSERT_MATCH(result, R"((^|\s)allocated by thread .*?\n.*#00 pc)");
+ }
#else
GTEST_SKIP() << "Requires aarch64";
#endif
@@ -612,7 +635,7 @@ TEST_P(SizeParamCrasherTest, mte_underflow) {
ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\), code 9 \(SEGV_MTESERR\))");
ASSERT_MATCH(result, R"(Cause: \[MTE\]: Buffer Underflow, 4 bytes left of a )" +
std::to_string(GetParam()) + R"(-byte allocation)");
- ASSERT_MATCH(result, R"(allocated by thread .*
+ ASSERT_MATCH(result, R"((^|\s)allocated by thread .*
#00 pc)");
#else
GTEST_SKIP() << "Requires aarch64";
@@ -625,6 +648,8 @@ TEST_F(CrasherTest, mte_multiple_causes) {
GTEST_SKIP() << "Requires MTE";
}
+ LogcatCollector logcat_collector;
+
int intercept_result;
unique_fd output_fd;
StartProcess([]() {
@@ -657,17 +682,23 @@ TEST_F(CrasherTest, mte_multiple_causes) {
ASSERT_EQ(1, intercept_result) << "tombstoned reported failure";
- std::string result;
- ConsumeFd(std::move(output_fd), &result);
-
- ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
- ASSERT_MATCH(
- result,
- R"(Note: multiple potential causes for this crash were detected, listing them in decreasing order of probability.)");
-
- // Adjacent untracked allocations may cause us to see the wrong underflow here (or only
- // overflows), so we can't match explicitly for an underflow message.
- ASSERT_MATCH(result, R"(Cause: \[MTE\]: Buffer Overflow, 0 bytes right of a 16-byte allocation)");
+ std::vector<std::string> log_sources(2);
+ ConsumeFd(std::move(output_fd), &log_sources[0]);
+ logcat_collector.Collect(&log_sources[1]);
+
+ for (const auto& result : log_sources) {
+ ASSERT_MATCH(result, R"(signal 11 \(SIGSEGV\))");
+ ASSERT_THAT(result, HasSubstr("Note: multiple potential causes for this crash were detected, "
+ "listing them in decreasing order of probability."));
+ // Adjacent untracked allocations may cause us to see the wrong underflow here (or only
+ // overflows), so we can't match explicitly for an underflow message.
+ ASSERT_MATCH(result,
+ R"(Cause: \[MTE\]: Buffer Overflow, 0 bytes right of a 16-byte allocation)");
+ // Ensure there's at least two allocation traces (one for each cause).
+ ASSERT_MATCH(
+ result,
+ R"((^|\s)allocated by thread .*?\n.*#00 pc(.|\n)*?(^|\s)allocated by thread .*?\n.*#00 pc)");
+ }
#else
GTEST_SKIP() << "Requires aarch64";
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 14:33:55 +0000