When indirect_thunk_asm.h is instantiated directly into assembly files
CONFIG_INDIRECT_THUNK might not be defined, and thus using .if against
it is wrong.
Add a check to define CONFIG_INDIRECT_THUNK to 0 if not defined, so
that using .if CONFIG_INDIRECT_THUNK is always correct.
This suppresses the following clang error:
<instantiation>:8:9: error: expected absolute expression
.if CONFIG_INDIRECT_THUNK == 1
^
<instantiation>:1:1: note: while in macro instantiation
INDIRECT_BRANCH call %rdx
^
entry.S:589:9: note: while in macro instantiation
INDIRECT_CALL %rdx
^
Signed-off-by: Roger Pau Monné <roger....@citrix.com>
---
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
---
xen/include/asm-x86/asm_defns.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/include/asm-x86/asm_defns.h b/xen/include/asm-x86/asm_defns.h
index 447bf67aed..aa32f10967 100644
--- a/xen/include/asm-x86/asm_defns.h
+++ b/xen/include/asm-x86/asm_defns.h
@@ -14,6 +14,9 @@
#include <asm/alternative.h>
#ifdef __ASSEMBLY__
+# ifndef CONFIG_INDIRECT_THUNK
+# define CONFIG_INDIRECT_THUNK 0
+# endif
# include <asm/indirect_thunk_asm.h>
#else
/*
--
2.15.1
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