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

libc/platform/bionic/tls_defines.h

diff --git a/libc/platform/bionic/tls_defines.h b/libc/platform/bionic/tls_defines.h
index 8fe8701..06c6617 100644
--- a/libc/platform/bionic/tls_defines.h
+++ b/libc/platform/bionic/tls_defines.h
@@ -85,7 +85,8 @@
 // [1] "Addenda to, and Errata in, the ABI for the ARM Architecture". Section 3.
 // http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045e/IHI0045E_ABI_addenda.pdf
 
-#define MIN_TLS_SLOT (-2)  // update this value when reserving a slot
+#define MIN_TLS_SLOT (-3)  // update this value when reserving a slot
+#define TLS_SLOT_STACK_MTE (-3)
 #define TLS_SLOT_NATIVE_BRIDGE_GUEST_STATE (-2)
 #define TLS_SLOT_BIONIC_TLS     (-1)
 #define TLS_SLOT_DTV              0