mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 01:51:53 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/*
|
|
* include/asm-sh/machvec_init.h
|
|
*
|
|
* Copyright 2000 Stuart Menefy (stuart.menefy@st.com)
|
|
*
|
|
* May be copied or modified under the terms of the GNU General Public
|
|
* License. See linux/COPYING for more information.
|
|
*
|
|
* This file has goodies to help simplify instantiation of machine vectors.
|
|
*/
|
|
|
|
#ifndef __SH_MACHVEC_INIT_H
|
|
#define __SH_MACHVEC_INIT_H
|
|
|
|
#include <linux/config.h>
|
|
|
|
/*
|
|
* In a GENERIC kernel, we have lots of these vectors floating about,
|
|
* all but one of which we want to go away. In a non-GENERIC kernel,
|
|
* we want only one, ever.
|
|
*
|
|
* Accomplish this in the GENERIC kernel by puting all of the vectors
|
|
* in the .init.data section where they'll go away. We'll copy the
|
|
* one we want to the real alpha_mv vector in setup_arch.
|
|
*
|
|
* Accomplish this in a non-GENERIC kernel by ifdef'ing out all but
|
|
* one of the vectors, which will not reside in .init.data. We then
|
|
* alias this one vector to alpha_mv, so no copy is needed.
|
|
*
|
|
* Upshot: set __initdata to nothing for non-GENERIC kernels.
|
|
*
|
|
* Note we do the same thing for the UNKNOWN kernel, as we need to write
|
|
* to the machine vector while setting it up.
|
|
*/
|
|
|
|
#if defined(CONFIG_SH_GENERIC) || defined(CONFIG_SH_UNKNOWN)
|
|
#define __initmv __attribute__((unused,__section__ (".machvec.init")))
|
|
#define ALIAS_MV(x)
|
|
#else
|
|
#define __initmv
|
|
|
|
/* GCC actually has a syntax for defining aliases, but is under some
|
|
delusion that you shouldn't be able to declare it extern somewhere
|
|
else beforehand. Fine. We'll do it ourselves. */
|
|
#if 0
|
|
#define ALIAS_MV(system) \
|
|
struct sh_machine_vector sh_mv __attribute__((alias("mv_"#system)));
|
|
#else
|
|
#define ALIAS_MV(system) \
|
|
asm(".global sh_mv\nsh_mv = mv_"#system );
|
|
#endif
|
|
#endif /* GENERIC */
|
|
|
|
#endif /* __SH_MACHVEC_INIT_H */
|