[PATCH 2/3] sparse, llvm: Fix 'extern' symbol code generation

[Pekka Enberg <penberg@kernel.org>]

LLVMExternalLinkage is used for both extern and non-extern C symbols. The
linkage is differentiated by LLVMSetInitializer() which is should not be called
for extern symbols.

Cc: Christopher Li <sparse@chrisli.org>
Cc: Jeff Garzik <jgarzik@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
 sparse-llvm.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sparse-llvm.c b/sparse-llvm.c
index ca49a6e..1a2a34d 100644
--- a/sparse-llvm.c
+++ b/sparse-llvm.c
@@ -1090,7 +1090,8 @@ static LLVMValueRef output_data(LLVMModuleRef module, struct symbol *sym)
 
 	LLVMSetLinkage(data, data_linkage(sym));
 
-	LLVMSetInitializer(data, initial_value);
+	if (!(sym->ctype.modifiers & MOD_EXTERN))
+		LLVMSetInitializer(data, initial_value);
 
 	return data;
 }
-- 
1.7.6.4