1 files changed, 21 insertions, 0 deletions
diff --git a/test/hwasan/TestCases/print-memory-usage-android.c b/test/hwasan/TestCases/print-memory-usage-android.c
new file mode 100644
index 000000000000..5a057928ba75
--- /dev/null
+++ b/test/hwasan/TestCases/print-memory-usage-android.c
@@ -0,0 +1,21 @@
+// Tests __hwasan_print_memory_usage through /proc/$PID/maps.
+// RUN: %clang_hwasan %s -o %t && %env_hwasan_opts=export_memory_stats=1 %run %t 2>&1 | FileCheck %s
+// REQUIRES: android
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+// The function needs to be unsanitized in order for &cmd to be untagged. This
+// address is passed to system() and then to execve() syscall. The tests need to
+// run on unpatched linux kernel, which at this time does not accept tagged
+// pointers in system call arguments (but there is hope: see
+// https://lore.kernel.org/patchwork/cover/979328).
+__attribute__((no_sanitize("hwaddress")))
+int main() {
+  char cmd[1024];
+  snprintf(cmd, sizeof(cmd), "cat /proc/%d/maps", getpid());
+  system(cmd);
+  // CHECK: HWASAN pid: [[PID:[0-9]*]] rss: {{.*}} threads: 1 stacks: [[STACKS:[0-9]*]] thr_aux: {{.*}} stack_depot: {{.*}} uniq_stacks: [[UNIQ_STACKS:[0-9]*]] heap: [[HEAP:[0-9]*]]
+}