commit 9b88d0a3fef930af8e9499a6b32cbdd432185858
author Christopher Ferris <cferris@google.com> Thu Jun 13 13:22:02 2024 -0700
committer Christopher Ferris <cferris@google.com> Tue Jun 18 14:34:42 2024 -0700
tree 1f181c2c14df4bb29c89fb347932f2413228bc5b
parent de051b5d527ac72f949f3601dd2053fe11e312c1

Add record_allocs_on_exit option.

Add a config parameter "record_allocs_on_exit" that will cause the
currently recorded set of allocs to be dumped to a file when
the process exits.

Update the documentation, and add new unit tests.

Test: Unit tests pass.
Change-Id: I81d31bc63b8a6709697533c5099dcc6444c11d47

libc/malloc_debug/malloc_debug.cpp

diff --git a/libc/malloc_debug/malloc_debug.cpp b/libc/malloc_debug/malloc_debug.cpp
index b66b8e2..6d88092 100644
--- a/libc/malloc_debug/malloc_debug.cpp
+++ b/libc/malloc_debug/malloc_debug.cpp
@@ -451,6 +451,10 @@
     PointerData::LogLeaks();
   }
 
+  if ((g_debug->config().options() & RECORD_ALLOCS) && g_debug->config().record_allocs_on_exit()) {
+    RecordData::WriteEntriesOnExit();
+  }
+
   if ((g_debug->config().options() & BACKTRACE) && g_debug->config().backtrace_dump_on_exit()) {
     debug_dump_heap(android::base::StringPrintf("%s.%d.exit.txt",
                                                 g_debug->config().backtrace_dump_prefix().c_str(),