Add new mallopt M_LOG_STATS.
This new mallopt cause statistics of the allocator to be printed in
the log.
Add a stats print for jemalloc.
This is designed to be used as part of a dumpsys meminfo --XXXX
option so that it's easier to get information about apps that
have an unusual memory footprint.
Test: Unit tests pass.
Test: Ran on a device using jemalloc and verified log data.
Test: Ran on a device using scudo and verified log data.
Change-Id: I6fa44ce619c064b2596fbbb478c231994af94f4c
diff --git a/tests/malloc_test.cpp b/tests/malloc_test.cpp
index 22905f4..5df694c 100644
--- a/tests/malloc_test.cpp
+++ b/tests/malloc_test.cpp
@@ -708,6 +708,15 @@
#endif
}
+TEST(malloc, mallopt_log_stats) {
+#if defined(__BIONIC__)
+ SKIP_WITH_HWASAN << "hwasan does not implement mallopt";
+ ASSERT_EQ(1, mallopt(M_LOG_STATS, 0));
+#else
+ GTEST_SKIP() << "bionic-only test";
+#endif
+}
+
// Verify that all of the mallopt values are unique.
TEST(malloc, mallopt_unique_params) {
#if defined(__BIONIC__)
@@ -722,6 +731,7 @@
std::make_pair(M_TSDS_COUNT_MAX, "M_TSDS_COUNT_MAX"),
std::make_pair(M_BIONIC_ZERO_INIT, "M_BIONIC_ZERO_INIT"),
std::make_pair(M_BIONIC_SET_HEAP_TAGGING_LEVEL, "M_BIONIC_SET_HEAP_TAGGING_LEVEL"),
+ std::make_pair(M_LOG_STATS, "M_LOG_STATS"),
};
std::unordered_map<int, std::string> all_params;