2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
6 #include "linux/kernel.h"
8 #include "asm/signal.h"
9 #include "asm/ptrace.h"
10 #include "asm/uaccess.h"
11 #include "asm/pgalloc.h"
12 #include "asm/tlbflush.h"
13 #include "user_util.h"
14 #include "kern_util.h"
16 #include "time_user.h"
22 static int exec_tramp(void *sig_stack
)
24 init_new_thread_stack(sig_stack
, NULL
);
25 init_new_thread_signals(1);
26 os_stop_process(os_getpid());
30 void flush_thread_tt(void)
35 stack
= alloc_stack(0, 0);
38 "flush_thread : failed to allocate temporary stack\n");
42 new_pid
= start_fork_tramp(task_stack_page(current
), stack
, 0, exec_tramp
);
45 "flush_thread : new thread failed, errno = %d\n",
50 if(current_thread
->cpu
== 0)
51 forward_interrupts(new_pid
);
52 current
->thread
.request
.op
= OP_EXEC
;
53 current
->thread
.request
.u
.exec
.pid
= new_pid
;
54 unprotect_stack((unsigned long) current_thread
);
55 os_usr1_process(os_getpid());
56 change_sig(SIGUSR1
, 1);
58 change_sig(SIGUSR1
, 0);
61 protect_memory(uml_reserved
, high_physmem
- uml_reserved
, 1, 1, 0, 1);
62 task_protections((unsigned long) current_thread
);
67 void start_thread_tt(struct pt_regs
*regs
, unsigned long eip
,
71 flush_tlb_mm(current
->mm
);
72 PT_REGS_IP(regs
) = eip
;
73 PT_REGS_SP(regs
) = esp
;
74 PT_FIX_EXEC_STACK(esp
);
78 * Overrides for Emacs so that we follow Linus's tabbing style.
79 * Emacs will notice this stuff at the end of the file and automatically
80 * adjust the settings for this buffer only. This must remain at the end
82 * ---------------------------------------------------------------------------
84 * c-file-style: "linux"