[Arm64/Linux] #17521 for linux (#17546)

diff --git a/src/vm/arm64/pinvokestubs.S b/src/vm/arm64/pinvokestubs.S
index c87e800..00d64b4 100644 (file)
--- a/src/vm/arm64/pinvokestubs.S
+++ b/src/vm/arm64/pinvokestubs.S
@@ -60,8 +60,14 @@ LOCAL_LABEL(\__PInvokeStubFuncName\()_0):
         // save hidden arg
         mov                 x19, \HiddenArg 
 
+        // save VASigCookieReg
+        mov                 x20, \VASigCookieReg
+
         bl                  \__PInvokeStubWorkerName
 
+        // restore VASigCookieReg
+        mov                 \VASigCookieReg, x20
+
         // restore hidden arg (method desc or unmanaged target)
         mov                 \HiddenArg , x19