Update to new binary file-based trace file.

In order to not lose records, or need to guess ahead of time how
many records you need, this switches to a mmap'd file for the trace
buffer, and grows it as needed.

The trace2dat perl script is replaced with a trace2wl C++ program
that runs a lot faster and can handle the binary format.

1 files changed, 5 insertions, 2 deletions

diff --git a/malloc/Versions b/malloc/Versions
index 6f03a46735..5f6565ca0b 100644
--- a/malloc/Versions
+++ b/malloc/Versions
@@ -74,8 +74,11 @@ libc {
     __libc_scratch_buffer_set_array_size;
 
     # malloc trace hooks for mtrace-ctl
-    __malloc_set_trace_buffer;
-    __malloc_get_trace_buffer;
+    __malloc_trace_init;
+    __malloc_trace_pause;
+    __malloc_trace_unpause;
+    __malloc_trace_stop;
+    __malloc_trace_sync;
 
     __malloc_scan_chunks;
   }