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Subject[PATCH] module: LLVMLinux: Fix section mismatch issues on alias usage
Date
From: Jan-Simon Möller <dl9pf@gmx.de>

Attribute aliases don't inherit the link section name when compiled with clang.
As a result, the linking section needs to be explicitly specified when building
a module. This behavior is undefined in the standard which is why it differs from
compiler to compiler.

Author: PaX Team <pageexec@freemail.hu>
ML-Post: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20120507/142707.html
URL: http://llvm.linuxfoundation.org
Merge: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Behan Webster <behanw@converseincode.com>
---
include/linux/init.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/init.h b/include/linux/init.h
index e168880..384ec5e 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -297,13 +297,14 @@ void __init parse_early_options(char *cmdline);
#define module_init(initfn) \
static inline initcall_t __inittest(void) \
{ return initfn; } \
- int init_module(void) __attribute__((alias(#initfn)));
+ int init_module(void) __section(.init) __attribute__((alias(#initfn)));

/* This is only required if you want to be unloadable. */
#define module_exit(exitfn) \
static inline exitcall_t __exittest(void) \
{ return exitfn; } \
- void cleanup_module(void) __attribute__((alias(#exitfn)));
+ void cleanup_module(void) __section(.exit) \
+ __attribute__((alias(#exitfn)));

#define __setup_param(str, unique_id, fn) /* nothing */
#define __setup(str, func) /* nothing */
--
1.8.3.2
--
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