Bionic malloc debug: add a new option "abort_on_error"

This new option causes an abort after malloc debug detects an error.
This allows vendors to get process coredumps to analyze memory for
corruption.

Bug: 123009873
Test: New test cases added for unit tests and config tests.

Change-Id: I6b480af7f747d6a82f61e8bf3df204a5f7ba017f

1 files changed, 18 insertions, 0 deletions

diff --git a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
index a083b4f05..fb54ee54f 100644
--- a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
+++ b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
@@ -725,3 +725,21 @@ TEST_F(MallocDebugConfigTest, record_allocs_max_error) {
       "value must be <= 50000000: 100000000\n");
   ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str());
 }
+
+TEST_F(MallocDebugConfigTest, abort_on_error) {
+  ASSERT_TRUE(InitConfig("abort_on_error")) << getFakeLogPrint();
+  ASSERT_EQ(ABORT_ON_ERROR, config->options());
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  ASSERT_STREQ("", getFakeLogPrint().c_str());
+}
+
+TEST_F(MallocDebugConfigTest, trigger_abort_fail) {
+  ASSERT_FALSE(InitConfig("abort_on_error=200")) << getFakeLogPrint();
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  std::string log_msg(
+      "6 malloc_debug malloc_testing: value set for option 'abort_on_error' "
+      "which does not take a value\n");
+  ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str());
+}