commit b42e8b4dec33daec51f40936c81cfe922931f431
author Christopher Ferris <cferris@google.com> Mon May 09 14:00:47 2022 -0700
committer Christopher Ferris <cferris@google.com> Tue May 10 17:37:19 2022 -0700
tree 507f75e675d72c981002bbf102fa984fba84ae6f
parent de9fe1e2de37e35081b331455b557915b07e6df7

Add option to force memunreachable check.

The new option is named check_unreachable_on_signal. It is meant
to duplicate dumpsys meminfo --unreachable <PID> for non-java
processes. When enabled, a user can send a signal to a process
which will trigger the unreachable check on the next allocation
call.

Added new unit tests.

Test: New unit tests pass.
Test: Enabled for the entire system, then dumped on the netd
Test: process and also system_server.
Change-Id: I73561b408a947a11ce21a211b065d59fcc39097b

libc/malloc_debug/Android.bp

diff --git a/libc/malloc_debug/Android.bp b/libc/malloc_debug/Android.bp
index 7ff3db2..344f9a7 100644
--- a/libc/malloc_debug/Android.bp
+++ b/libc/malloc_debug/Android.bp
@@ -64,6 +64,7 @@
         "malloc_debug.cpp",
         "PointerData.cpp",
         "RecordData.cpp",
+        "Unreachable.cpp",
         "UnwindBacktrace.cpp",
     ],
 
@@ -73,6 +74,7 @@
         "libasync_safe",
         "libbase",
         "libc_malloc_debug_backtrace",
+        "libmemunreachable",
     ],
 
     shared_libs: [