Enable weak functions properly.
There is a check for WEAKS_AVAILABLE that is never set. Change this so
so it is available everywhere except apple/windows.
Add new test to verify that on Android the logStackInternal function is
defined.
Bug: 331489939
Test: All unit tests pass.
Change-Id: Ie982eba30ae421931a62718d39ff1f0c282453db
diff --git a/libutils/CallStack_test.cpp b/libutils/CallStack_test.cpp
index 2cfaf61..7afc2c3 100644
--- a/libutils/CallStack_test.cpp
+++ b/libutils/CallStack_test.cpp
@@ -18,10 +18,16 @@
#include <thread>
+#include <android-base/test_utils.h>
#include <android-base/threads.h>
#include <gtest/gtest.h>
#include <utils/CallStack.h>
+#if defined(__ANDROID__)
+#include <log/log.h>
+#include <log/log_read.h>
+#endif
+
__attribute__((__noinline__)) extern "C" void CurrentCaller(android::String8& backtrace) {
android::CallStack cs;
cs.update();
@@ -61,3 +67,38 @@
ASSERT_NE(-1, cs.toString().find("(ThreadBusyWait")) << "Full backtrace:\n" << cs.toString();
}
+
+#if defined(__ANDROID__)
+TEST(CallStackTest, log_stack) {
+ android::CallStack::logStack("callstack_test");
+ auto logger_list = android_logger_list_open(android_name_to_log_id("main"),
+ ANDROID_LOG_NONBLOCK, 1000, getpid());
+ ASSERT_NE(nullptr, logger_list);
+ std::string log;
+ while (true) {
+ log_msg log_msg;
+ auto ret = android_logger_list_read(logger_list, &log_msg);
+ if (ret == -EAGAIN) {
+ break;
+ }
+ ASSERT_GT(ret, 0);
+ if (log_msg.msg() == nullptr) {
+ continue;
+ }
+ // First get the tag.
+ char* msg = &log_msg.msg()[1];
+ if (std::string(msg) != "callstack_test") {
+ continue;
+ }
+ // Now move past the tag.
+ msg = &msg[strlen(msg) + 1];
+ log += msg;
+ log += '\n';
+ }
+ ASSERT_NE("", log) << "No messages found in the log from the test.";
+ // Look for a backtrace line such as:
+ // #00 pc 00000000000536e4 libutils_test (testing::Test::Run()+436)
+ ASSERT_MATCH(log, "#\\d+ pc \\d+");
+ android_logger_list_close(logger_list);
+}
+#endif