summaryrefslogtreecommitdiff
path: root/src/pal/src/arch/amd64/activationhandlerwrapper.S
diff options
context:
space:
mode:
Diffstat (limited to 'src/pal/src/arch/amd64/activationhandlerwrapper.S')
-rw-r--r--src/pal/src/arch/amd64/activationhandlerwrapper.S30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/pal/src/arch/amd64/activationhandlerwrapper.S b/src/pal/src/arch/amd64/activationhandlerwrapper.S
new file mode 100644
index 0000000000..63f718e81f
--- /dev/null
+++ b/src/pal/src/arch/amd64/activationhandlerwrapper.S
@@ -0,0 +1,30 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+.intel_syntax noprefix
+#include "unixasmmacros.inc"
+#include "asmconstants.h"
+
+#ifdef BIT64
+// Offset of the return address from the ActivationHandler in the ActivationHandlerWrapper
+.globl C_FUNC(ActivationHandlerReturnOffset)
+C_FUNC(ActivationHandlerReturnOffset):
+ .int LOCAL_LABEL(ActivationHandlerReturn)-C_FUNC(ActivationHandlerWrapper)
+
+NESTED_ENTRY ActivationHandlerWrapper, _TEXT, NoHandler
+ push_nonvol_reg rbp
+ mov rbp, rsp
+ alloc_stack (CONTEXT_Size)
+ set_cfa_register rbp, (2*8)
+ mov rdi, rsp
+ int3
+ call C_FUNC(ActivationHandler)
+LOCAL_LABEL(ActivationHandlerReturn):
+ int3
+ free_stack (CONTEXT_Size)
+ pop_nonvol_reg rbp
+ ret
+NESTED_END ActivationHandlerWrapper, _TEXT
+
+#endif // BIT64