xref: /linux/arch/x86/um/asm/processor_64.h (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
1 /*
2  * Copyright 2003 PathScale, Inc.
3  *
4  * Licensed under the GPL
5  */
6 
7 #ifndef __UM_PROCESSOR_X86_64_H
8 #define __UM_PROCESSOR_X86_64_H
9 
10 struct arch_thread {
11         unsigned long debugregs[8];
12         int debugregs_seq;
13         struct faultinfo faultinfo;
14 };
15 
16 #define INIT_ARCH_THREAD { .debugregs  		= { [ 0 ... 7 ] = 0 }, \
17 			   .debugregs_seq	= 0, \
18 			   .faultinfo		= { 0, 0, 0 } }
19 
20 #define STACKSLOTS_PER_LINE 4
21 
22 static inline void arch_flush_thread(struct arch_thread *thread)
23 {
24 }
25 
26 static inline void arch_copy_thread(struct arch_thread *from,
27                                     struct arch_thread *to)
28 {
29 }
30 
31 #define current_sp() ({ void *sp; __asm__("movq %%rsp, %0" : "=r" (sp) : ); sp; })
32 #define current_bp() ({ unsigned long bp; __asm__("movq %%rbp, %0" : "=r" (bp) : ); bp; })
33 
34 #endif
35