Tests for memory tagging ELF notes.
Bug: b/135772972
Test: bionic-unit-tests
Change-Id: I9b151291d86ef10731eb97db6e68534d5372e06c
diff --git a/tests/libs/Android.bp b/tests/libs/Android.bp
index 4b86faf..385d120 100644
--- a/tests/libs/Android.bp
+++ b/tests/libs/Android.bp
@@ -1579,3 +1579,85 @@
defaults: ["bionic_testlib_defaults"],
srcs: ["relocations.cpp"],
}
+
+cc_defaults {
+ name: "bionic_targets_only",
+ enabled: false,
+ target: {
+ android: {
+ enabled: true,
+ },
+ linux_bionic: {
+ enabled: true,
+ },
+ },
+}
+
+cc_test {
+ name: "heap_tagging_sync_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ sanitize: {
+ memtag_heap: true,
+ diag: {
+ memtag_heap: true,
+ },
+ },
+}
+
+cc_test {
+ name: "heap_tagging_async_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ sanitize: {
+ memtag_heap: true,
+ diag: {
+ memtag_heap: false,
+ },
+ },
+}
+
+cc_test {
+ name: "heap_tagging_disabled_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ sanitize: {
+ memtag_heap: false,
+ },
+}
+
+cc_test {
+ name: "heap_tagging_static_sync_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ static_executable: true,
+ sanitize: {
+ memtag_heap: true,
+ diag: {
+ memtag_heap: true,
+ },
+ },
+}
+
+cc_test {
+ name: "heap_tagging_static_async_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ static_executable: true,
+ sanitize: {
+ memtag_heap: true,
+ diag: {
+ memtag_heap: false,
+ },
+ },
+}
+
+cc_test {
+ name: "heap_tagging_static_disabled_helper",
+ defaults: ["bionic_testlib_defaults", "bionic_targets_only"],
+ srcs: ["heap_tagging_helper.cpp"],
+ static_executable: true,
+ sanitize: {
+ memtag_heap: false,
+ },
+}
diff --git a/tests/libs/heap_tagging_helper.cpp b/tests/libs/heap_tagging_helper.cpp
new file mode 100644
index 0000000..1a970f2
--- /dev/null
+++ b/tests/libs/heap_tagging_helper.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <sys/cdefs.h>
+#include <unistd.h>
+#include <memory>
+
+void action(int signo, siginfo_t* info __unused, void*) {
+#ifdef __ANDROID__
+ if (signo == 11 && info->si_code == SEGV_MTEAERR) {
+ fprintf(stderr, "SEGV_MTEAERR\n");
+ _exit(0);
+ }
+
+ if (signo == 11 && info->si_code == SEGV_MTESERR) {
+ fprintf(stderr, "SEGV_MTESERR\n");
+ _exit(0);
+ }
+#endif
+
+ fprintf(stderr, "signo %d\n", signo);
+ _exit(0);
+}
+
+__attribute__((optnone)) int main() {
+ struct sigaction sa = {};
+ sa.sa_sigaction = action;
+ sa.sa_flags = SA_SIGINFO;
+ sigaction(SIGSEGV, &sa, nullptr);
+
+ std::unique_ptr<int[]> p = std::make_unique<int[]>(4);
+ volatile int oob = p[-1];
+ (void)oob;
+
+ fprintf(stderr, "normal exit\n");
+ return 0;
+}