1da177e4c3
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!
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
|
|
* linux/include/asm-arm26/processor.h
|
|
*
|
|
* Copyright (C) 1995 Russell King
|
|
* Copyright (C) 2003 Ian Molton
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_PROCESSOR_H
|
|
#define __ASM_ARM_PROCESSOR_H
|
|
|
|
/*
|
|
* Default implementation of macro that returns current
|
|
* instruction pointer ("program counter").
|
|
*/
|
|
#define current_text_addr() ({ __label__ _l; _l: &&_l;})
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/atomic.h>
|
|
#include <asm/ptrace.h>
|
|
#include <linux/string.h>
|
|
|
|
#define KERNEL_STACK_SIZE 4096
|
|
|
|
typedef struct {
|
|
void (*put_byte)(void); /* Special calling convention */
|
|
void (*get_byte)(void); /* Special calling convention */
|
|
void (*put_half)(void); /* Special calling convention */
|
|
void (*get_half)(void); /* Special calling convention */
|
|
void (*put_word)(void); /* Special calling convention */
|
|
void (*get_word)(void); /* Special calling convention */
|
|
void (*put_dword)(void); /* Special calling convention */
|
|
unsigned long (*copy_from_user)(void *to, const void *from, unsigned long sz);
|
|
unsigned long (*copy_to_user)(void *to, const void *from, unsigned long sz);
|
|
unsigned long (*clear_user)(void *addr, unsigned long sz);
|
|
unsigned long (*strncpy_from_user)(char *to, const char *from, unsigned long sz);
|
|
unsigned long (*strnlen_user)(const char *s, long n);
|
|
} uaccess_t;
|
|
|
|
extern uaccess_t uaccess_user, uaccess_kernel;
|
|
|
|
#define EXTRA_THREAD_STRUCT \
|
|
uaccess_t *uaccess; /* User access functions*/
|
|
|
|
#define EXTRA_THREAD_STRUCT_INIT \
|
|
.uaccess = &uaccess_kernel,
|
|
|
|
// FIXME?!!
|
|
|
|
#define start_thread(regs,pc,sp) \
|
|
({ \
|
|
unsigned long *stack = (unsigned long *)sp; \
|
|
set_fs(USER_DS); \
|
|
memzero(regs->uregs, sizeof (regs->uregs)); \
|
|
regs->ARM_pc = pc | ~0xfc000003; /* pc */ \
|
|
regs->ARM_sp = sp; /* sp */ \
|
|
regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
|
|
regs->ARM_r1 = stack[1]; /* r1 (argv) */ \
|
|
regs->ARM_r0 = stack[0]; /* r0 (argc) */ \
|
|
})
|
|
|
|
#define KSTK_EIP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1020])
|
|
#define KSTK_ESP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1018])
|
|
|
|
struct debug_entry {
|
|
u32 address;
|
|
u32 insn;
|
|
};
|
|
|
|
struct debug_info {
|
|
int nsaved;
|
|
struct debug_entry bp[2];
|
|
};
|
|
|
|
struct thread_struct {
|
|
/* fault info */
|
|
unsigned long address;
|
|
unsigned long trap_no;
|
|
unsigned long error_code;
|
|
/* debugging */
|
|
struct debug_info debug;
|
|
EXTRA_THREAD_STRUCT
|
|
};
|
|
|
|
#define INIT_THREAD { \
|
|
EXTRA_THREAD_STRUCT_INIT \
|
|
}
|
|
|
|
/* Forward declaration, a strange C thing */
|
|
struct task_struct;
|
|
|
|
/* Free all resources held by a thread. */
|
|
extern void release_thread(struct task_struct *);
|
|
|
|
unsigned long get_wchan(struct task_struct *p);
|
|
|
|
#define cpu_relax() barrier()
|
|
|
|
/* Prepare to copy thread state - unlazy all lazy status */
|
|
#define prepare_to_copy(tsk) do { } while (0)
|
|
|
|
/*
|
|
* Create a new kernel thread
|
|
*/
|
|
extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
|
|
|
|
#endif
|
|
|
|
#endif /* __ASM_ARM_PROCESSOR_H */
|