From 392e8802486cb573b916e746010e141a75f507e6 Mon Sep 17 00:00:00 2001 From: Kevin Date: Sat, 15 Nov 2014 09:58:27 +0800 Subject: init android origin source code --- ANDROID_3.4.5/arch/x86/include/asm/linkage.h | 61 ++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 ANDROID_3.4.5/arch/x86/include/asm/linkage.h (limited to 'ANDROID_3.4.5/arch/x86/include/asm/linkage.h') diff --git a/ANDROID_3.4.5/arch/x86/include/asm/linkage.h b/ANDROID_3.4.5/arch/x86/include/asm/linkage.h new file mode 100644 index 00000000..48142971 --- /dev/null +++ b/ANDROID_3.4.5/arch/x86/include/asm/linkage.h @@ -0,0 +1,61 @@ +#ifndef _ASM_X86_LINKAGE_H +#define _ASM_X86_LINKAGE_H + +#include + +#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 */ + -- cgit