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/Config.h

diff --git a/libc/malloc_debug/Config.h b/libc/malloc_debug/Config.h
index 754970f..8551712 100644
--- a/libc/malloc_debug/Config.h
+++ b/libc/malloc_debug/Config.h
@@ -98,6 +98,7 @@
   int record_allocs_signal() const { return record_allocs_signal_; }
   size_t record_allocs_num_entries() const { return record_allocs_num_entries_; }
   const std::string& record_allocs_file() const { return record_allocs_file_; }
+  bool record_allocs_on_exit() const { return record_allocs_on_exit_; }
 
   int check_unreachable_signal() const { return check_unreachable_signal_; }
 
@@ -139,6 +140,7 @@
 
   bool SetRecordAllocs(const std::string& option, const std::string& value);
   bool SetRecordAllocsFile(const std::string& option, const std::string& value);
+  bool SetRecordAllocsOnExit(const std::string& option, const std::string& value);
 
   bool VerifyValueEmpty(const std::string& option, const std::string& value);
 
@@ -170,6 +172,7 @@
   int record_allocs_signal_ = 0;
   size_t record_allocs_num_entries_ = 0;
   std::string record_allocs_file_;
+  bool record_allocs_on_exit_ = false;
 
   uint64_t options_ = 0;
   uint8_t fill_alloc_value_;