This source file includes following definitions.
- ret_from_sys_call
- sys_idle
- hard_reset_now
- show_regs
- start_thread
- exit_thread
- flush_thread
- copy_thread
- dump_thread
- sys_execve
1
2
3
4
5
6
7
8
9
10
11 #include <linux/errno.h>
12 #include <linux/sched.h>
13 #include <linux/kernel.h>
14 #include <linux/mm.h>
15 #include <linux/stddef.h>
16 #include <linux/unistd.h>
17 #include <linux/ptrace.h>
18 #include <linux/malloc.h>
19 #include <linux/ldt.h>
20 #include <linux/user.h>
21 #include <linux/a.out.h>
22
23 #include <asm/segment.h>
24 #include <asm/system.h>
25
26 void ret_from_sys_call(void) { __asm__("nop"); }
27
28
29
30
31 asmlinkage int sys_idle(void)
32 {
33 if (current->pid != 0)
34 return -EPERM;
35
36
37
38
39
40 current->counter = -100;
41 for (;;) {
42 schedule();
43 }
44 }
45
46 void hard_reset_now(void)
47 {
48 halt();
49 }
50
51 void show_regs(struct pt_regs * regs)
52 {
53 printk("\nSP: %08lx PC: %08lx NPC: %08lx\n", regs->sp, regs->pc,
54 regs->npc);
55 }
56
57
58
59
60 void start_thread(struct pt_regs * regs, unsigned long sp, unsigned long fp)
61 {
62 regs->sp = sp;
63 regs->fp = fp;
64 }
65
66
67
68
69 void exit_thread(void)
70 {
71 halt();
72 }
73
74 void flush_thread(void)
75 {
76 halt();
77 }
78
79 unsigned long copy_thread(int nr, unsigned long clone_flags, struct task_struct * p, struct pt_regs * regs)
80 {
81 struct pt_regs * childregs;
82
83 childregs = ((struct pt_regs *) (p->kernel_stack_page + PAGE_SIZE)) - 1;
84 p->tss.usp = (unsigned long) childregs;
85 *childregs = *regs;
86 p->tss.psr = regs->psr;
87 return clone_flags;
88 }
89
90
91
92
93 void dump_thread(struct pt_regs * regs, struct user * dump)
94 {
95 return;
96 }
97
98
99
100
101 asmlinkage int sys_execve(struct pt_regs regs)
102 {
103 halt();
104 return 0;
105 }
106