linux/include/asm-i386/linkage.h

#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H

#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
#define FASTCALL(x)	x __attribute__((regparm(3)))
#define fastcall	__attribute__((regparm(3)))

#define prevent_tail_call(ret) __asm__ ("" : "=r" (ret) : "0" (ret))

#ifdef CONFIG_X86_ALIGNMENT_16
#define __ALIGN .align 16,0x90
#define __ALIGN_STR ".align 16,0x90"
#endif

#endif
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! 2005-04-16 15:20:36 -07:00			`#ifndef __ASM_LINKAGE_H`
			`#define __ASM_LINKAGE_H`

			`#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))`
			`#define FASTCALL(x) x __attribute__((regparm(3)))`
			`#define fastcall __attribute__((regparm(3)))`

[PATCH] i386: fix prevent_tail_call We fixed this bug before, but it didn't take. It may have been the case that the problem was first noticed to occur in a CONFIG_REGPARM compile. But it's not regparm functions that need not to make tail calls, it's asmlinkage functions called with a user pt_regs frame on the stack supplying their arguments. prevent_tail_call probably doesn't do anything at all in regparm functions (your argument registers are going to be clobbered, period). It was a braino to conditionalize that definition in the first place. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2005-05-26 15:21:13 -07:00			`#define prevent_tail_call(ret) __asm__ ("" : "=r" (ret) : "0" (ret))`
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! 2005-04-16 15:20:36 -07:00
			`#ifdef CONFIG_X86_ALIGNMENT_16`
			`#define __ALIGN .align 16,0x90`
			`#define __ALIGN_STR ".align 16,0x90"`
			`#endif`

			`#endif`