linux_dsm_epyc7002/arch/sparc/lib/U3copy_from_user.S

/* U3copy_from_user.S: UltraSparc-III optimized copy from userspace.
 *
 * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
 */

#define EX_LD(x)		\
98:	x;			\
	.section __ex_table,"a";\
	.align 4;		\
	.word 98b, __retl_one;	\
	.text;			\
	.align 4;

#define FUNC_NAME		U3copy_from_user
#define LOAD(type,addr,dest)	type##a [addr] %asi, dest
#define EX_RETVAL(x)		0

#include "U3memcpy.S"
Linux-2.6.12-rc2 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! 2005-04-17 05:20:36 +07:00			`/* U3copy_from_user.S: UltraSparc-III optimized copy from userspace.`
			`*`
			`* Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)`
			`*/`

			`#define EX_LD(x) \`
			`98: x; \`
[SPARC64]: Mark __ex_table section correctly. We must use the "a" (allocate) attribute every time we emit an entry into the __ex_table section. For consistency, use "a" instead of #alloc which is some Solaris compat cruft GNU as provides on Sparc. Signed-off-by: David S. Miller <davem@davemloft.net> 2006-03-05 14:23:56 +07:00			`.section __ex_table,"a";\`
Linux-2.6.12-rc2 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! 2005-04-17 05:20:36 +07:00			`.align 4; \`
sparc64: Kill .fixup section bloat. This is an implementation of a suggestion made by Chris Torek: -------------------- Something else I noticed in passing: the EX and EX_LD/EX_ST macros scattered throughout the various .S files make a fair bit of .fixup code, all of which does the same thing. At the cost of one symbol in copy_in_user.S, you could just have one common two-instruction retl-and-mov-1 fixup that they all share. -------------------- The following is with a defconfig build: text data bss dec hex filename 3972767 344024 584449 4901240 4ac978 vmlinux.orig 3968887 344024 584449 4897360 4aba50 vmlinux Signed-off-by: David S. Miller <davem@davemloft.net> 2009-02-09 13:00:55 +07:00			`.word 98b, __retl_one; \`
Linux-2.6.12-rc2 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! 2005-04-17 05:20:36 +07:00			`.text; \`
			`.align 4;`

			`#define FUNC_NAME U3copy_from_user`
			`#define LOAD(type,addr,dest) type##a [addr] %asi, dest`
			`#define EX_RETVAL(x) 0`

			`#include "U3memcpy.S"`