From: zye2-sc <140619768+zye2-sc@users.noreply.github.com>
Date: Fri, 31 Jan 2025 20:40:00 +0000 (+0100)
Subject: Disable go closures on Android (#877)
X-Git-Tag: upstream/3.4.7~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a0d8074a672312dbc757320d8bc42e39aa5b3d9a;p=platform%2Fupstream%2Flibffi.git

Disable go closures on Android (#877)

* x18 register shouldn't be used on Android due to the shadow call stack feature in llvm
* https://source.android.com/docs/security/test/shadow-call-stack
---

diff --git a/src/aarch64/ffitarget.h b/src/aarch64/ffitarget.h
index d5622e1..2ab9564 100644
--- a/src/aarch64/ffitarget.h
+++ b/src/aarch64/ffitarget.h
@@ -83,8 +83,8 @@ typedef enum ffi_abi
 
 #if defined (__APPLE__)
 #define FFI_EXTRA_CIF_FIELDS unsigned aarch64_nfixedargs
-#elif !defined(_WIN32)
-/* iOS and Windows reserve x18 for the system.  Disable Go closures until
+#elif !defined(_WIN32) && !defined(__ANDROID__)
+/* iOS, Windows and Android reserve x18 for the system.  Disable Go closures until
    a new static chain is chosen.  */
 #define FFI_GO_CLOSURES 1
 #endif