The ABI wrapper from r775 made the SHARED definitions obsolete. They're

not that readable anyway, so kill them and use standard definitions
instead.

Introduce EXPORT_SYMBOL for shared symbols. EXPORT_SYMBOL tells the
compiler to use the standard calling conventions for a given symbol and
not to optimize it away.
Benefits:
- We can later use gcc -combine -fwhole-program without problems.
- It's a correctness fix for some optimizations.
- We could check for duplicated exported functions at link time.
- We could check whether exported functions are linked into initram or
stage2 by accident.
- We could generate usage statistics and possibly optimize away unused
shared functions.
- Through the above points, significant side reductions of 10-40%

Build and boot tested on qemu.
Build tested on all targets.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@780 f3766cd6-281f-0410-b1cd-43a5c92072e9

include/arch/x86/cpu.h

@@ -201,8 +201,10 @@ static inline __attribute__((always_inline)) void hlt(void)
 	__asm__ __volatile__("hlt" : : : "memory");
 }
 
-SHARED(bottom_of_stack, void *, void);
-SHARED(global_vars, struct global_vars *, void);
+void * bottom_of_stack(void);
+EXPORT_SYMBOL(bottom_of_stack);
+struct global_vars * global_vars(void);
+EXPORT_SYMBOL(global_vars);
 
 #ifdef CONFIG_CONSOLE_BUFFER
 #define PRINTK_BUF_SIZE_CAR (CONFIG_CARSIZE / 2)
@@ -251,9 +253,11 @@ struct rmap {
 	};
 };
 
-SHARED(setup_resource_map_x_offset, void, const struct rmap *rm, u32 max,
+void setup_resource_map_x_offset(const struct rmap *rm, u32 max,
                                  u32 offset_dev, u32 offset_pciio, 
                                  u32 offset_io);
-SHARED(setup_resource_map, void, const struct rmap *rm, u32 max);
+EXPORT_SYMBOL(setup_resource_map_x_offset);
+void setup_resource_map(const struct rmap *rm, u32 max);
+EXPORT_SYMBOL(setup_resource_map);
 
 #endif /* ARCH_X86_CPU_H */