2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
6 #ifndef __UM_PROCESSOR_GENERIC_H
7 #define __UM_PROCESSOR_GENERIC_H
13 #include "linux/config.h"
14 #include "asm/ptrace.h"
15 #include "choose-mode.h"
19 struct thread_struct {
20 /* This flag is set to 1 before calling do_fork (and analyzed in
21 * copy_thread) to mark that we are begin called from userspace (fork /
22 * vfork / clone), and reset to 0 after. It is left to 0 when called
23 * from kernelspace (i.e. kernel_thread() or fork_idle(), as of 2.6.11). */
29 unsigned long trap_no;
30 int singlestep_syscall;
33 struct task_struct *prev_sched;
34 unsigned long temp_stack;
36 struct arch_thread arch;
46 #ifdef CONFIG_MODE_SKAS
83 .arch = INIT_ARCH_THREAD, \
91 extern struct task_struct *alloc_task_struct(void);
93 extern void release_thread(struct task_struct *);
94 extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
95 extern void dump_thread(struct pt_regs *regs, struct user *u);
97 static inline void prepare_to_copy(struct task_struct *tsk)
102 extern unsigned long thread_saved_pc(struct task_struct *t);
104 static inline void mm_copy_segments(struct mm_struct *from_mm,
105 struct mm_struct *new_mm)
109 #define init_stack (init_thread_union.stack)
112 * User space process size: 3GB (default).
114 extern unsigned long task_size;
116 #define TASK_SIZE (task_size)
118 /* This decides where the kernel will search for a free chunk of vm
119 * space during mmap's.
121 #define TASK_UNMAPPED_BASE (0x40000000)
123 extern void start_thread(struct pt_regs *regs, unsigned long entry,
124 unsigned long stack);
127 unsigned long loops_per_jiffy;
131 extern struct cpuinfo_um boot_cpu_data;
133 #define my_cpu_data cpu_data[smp_processor_id()]
136 extern struct cpuinfo_um cpu_data[];
137 #define current_cpu_data cpu_data[smp_processor_id()]
139 #define cpu_data (&boot_cpu_data)
140 #define current_cpu_data boot_cpu_data
143 #define KSTK_EIP(tsk) (PT_REGS_IP(&tsk->thread.regs))
144 #define KSTK_ESP(tsk) (PT_REGS_SP(&tsk->thread.regs))
145 #define get_wchan(p) (0)
150 * Overrides for Emacs so that we follow Linus's tabbing style.
151 * Emacs will notice this stuff at the end of the file and automatically
152 * adjust the settings for this buffer only. This must remain at the end
154 * ---------------------------------------------------------------------------
156 * c-file-style: "linux"