1 /*
2  * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3  * Licensed under the GPL
4  */
5 
6 #ifndef __START_H__
7 #define __START_H__
8 
9 #include <generated/asm-offsets.h>
10 
11 /*
12  * Stolen from linux/const.h, which can't be directly included since
13  * this is used in userspace code, which has no access to the kernel
14  * headers.  Changed to be suitable for adding casts to the start,
15  * rather than "UL" to the end.
16  */
17 
18 /* Some constant macros are used in both assembler and
19  * C code.  Therefore we cannot annotate them always with
20  * 'UL' and other type specifiers unilaterally.  We
21  * use the following macros to deal with this.
22  */
23 
24 #ifdef __ASSEMBLY__
25 #define _UML_AC(X, Y)	(Y)
26 #else
27 #define __UML_AC(X, Y)	(X(Y))
28 #define _UML_AC(X, Y)	__UML_AC(X, Y)
29 #endif
30 
31 #define STUB_START _UML_AC(, 0x100000)
32 #define STUB_CODE _UML_AC((unsigned long), STUB_START)
33 #define STUB_DATA _UML_AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE)
34 #define STUB_END _UML_AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE)
35 
36 #ifndef __ASSEMBLY__
37 
38 #include "sysdep/ptrace.h"
39 
40 struct cpu_task {
41 	int pid;
42 	void *task;
43 };
44 
45 extern struct cpu_task cpu_tasks[];
46 
47 extern unsigned long low_physmem;
48 extern unsigned long high_physmem;
49 extern unsigned long uml_physmem;
50 extern unsigned long uml_reserved;
51 extern unsigned long end_vm;
52 extern unsigned long start_vm;
53 extern unsigned long long highmem;
54 
55 extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
56 extern unsigned long _unprotected_end;
57 extern unsigned long brk_start;
58 
59 extern unsigned long host_task_size;
60 
61 extern int linux_main(int argc, char **argv);
62 
63 extern void (*sig_info[])(int, struct uml_pt_regs *);
64 
65 #endif
66 
67 #endif
68