mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 17:51:43 +00:00
1b4ac2a935
As UML does no longer need asmregparm we can remove it. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: namhyung@gmail.com Cc: davem@davemloft.net Cc: fweisbec@gmail.com Cc: dhowells@redhat.com Link: http://lkml.kernel.org/r/%3C1306189085-29896-1-git-send-email-richard%40nod.at%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
#ifndef _ASM_X86_LINKAGE_H
|
|
#define _ASM_X86_LINKAGE_H
|
|
|
|
#include <linux/stringify.h>
|
|
|
|
#undef notrace
|
|
#define notrace __attribute__((no_instrument_function))
|
|
|
|
#ifdef CONFIG_X86_32
|
|
#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
|
|
|
|
/*
|
|
* Make sure the compiler doesn't do anything stupid with the
|
|
* arguments on the stack - they are owned by the *caller*, not
|
|
* the callee. This just fools gcc into not spilling into them,
|
|
* and keeps it from doing tailcall recursion and/or using the
|
|
* stack slots for temporaries, since they are live and "used"
|
|
* all the way to the end of the function.
|
|
*
|
|
* NOTE! On x86-64, all the arguments are in registers, so this
|
|
* only matters on a 32-bit kernel.
|
|
*/
|
|
#define asmlinkage_protect(n, ret, args...) \
|
|
__asmlinkage_protect##n(ret, ##args)
|
|
#define __asmlinkage_protect_n(ret, args...) \
|
|
__asm__ __volatile__ ("" : "=r" (ret) : "0" (ret), ##args)
|
|
#define __asmlinkage_protect0(ret) \
|
|
__asmlinkage_protect_n(ret)
|
|
#define __asmlinkage_protect1(ret, arg1) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1))
|
|
#define __asmlinkage_protect2(ret, arg1, arg2) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2))
|
|
#define __asmlinkage_protect3(ret, arg1, arg2, arg3) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3))
|
|
#define __asmlinkage_protect4(ret, arg1, arg2, arg3, arg4) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
|
|
"g" (arg4))
|
|
#define __asmlinkage_protect5(ret, arg1, arg2, arg3, arg4, arg5) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
|
|
"g" (arg4), "g" (arg5))
|
|
#define __asmlinkage_protect6(ret, arg1, arg2, arg3, arg4, arg5, arg6) \
|
|
__asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
|
|
"g" (arg4), "g" (arg5), "g" (arg6))
|
|
|
|
#endif /* CONFIG_X86_32 */
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
#define GLOBAL(name) \
|
|
.globl name; \
|
|
name:
|
|
|
|
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
|
|
#define __ALIGN .p2align 4, 0x90
|
|
#define __ALIGN_STR __stringify(__ALIGN)
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_X86_LINKAGE_H */
|
|
|