commit 10d11ddfcb52122db52ac9f15b4884f663e9915d
author Florian Mayer <fmayer@google.com> Fri Apr 19 17:09:14 2024 -0700
committer Florian Mayer <fmayer@google.com> Fri Jun 07 17:11:35 2024 -0700
tree df72b4a94b888109c6f93454a81cabc47e423ec4
parent e78370e5f80b26d2f9035e2ed24fb1b25ea064e6

[MTE] allocate ring buffer for stack history

Test: atest memtag_stack_dlopen_test
Bug: 309446520
Change-Id: Ibf477bcfb832c5eba0244e86cdac5517f054eb49

tests/libs/testbinary_is_stack_mte.cpp

diff --git a/tests/libs/testbinary_is_stack_mte.cpp b/tests/libs/testbinary_is_stack_mte.cpp
index d8074d5..0cdc466 100644
--- a/tests/libs/testbinary_is_stack_mte.cpp
+++ b/tests/libs/testbinary_is_stack_mte.cpp
@@ -36,7 +36,9 @@
 #if defined(__BIONIC__) && defined(__aarch64__)
 
 extern "C" int main(int, char**) {
-  int ret = is_stack_mte_on() ? 0 : 1;
+  void* mte_tls_ptr = mte_tls();
+  *reinterpret_cast<uintptr_t*>(mte_tls_ptr) = 1;
+  int ret = is_stack_mte_on() && mte_tls_ptr != nullptr ? 0 : 1;
   printf("RAN\n");
   return ret;
 }