1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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 #define STUB_START stub_start
24 #define STUB_CODE STUB_START
25 #define STUB_DATA (STUB_CODE + UM_KERN_PAGE_SIZE)
26 #define STUB_DATA_PAGES 1 /* must be a power of two */
27 #define STUB_END (STUB_DATA + STUB_DATA_PAGES * UM_KERN_PAGE_SIZE)
28 
29 #ifndef __ASSEMBLY__
30 
31 #include <sysdep/ptrace.h>
32 
33 struct cpu_task {
34 	int pid;
35 	void *task;
36 };
37 
38 extern struct cpu_task cpu_tasks[];
39 
40 extern unsigned long high_physmem;
41 extern unsigned long uml_physmem;
42 extern unsigned long uml_reserved;
43 extern unsigned long end_vm;
44 extern unsigned long start_vm;
45 extern unsigned long long highmem;
46 
47 extern unsigned long brk_start;
48 
49 extern unsigned long host_task_size;
50 extern unsigned long stub_start;
51 
52 extern int linux_main(int argc, char **argv);
53 extern void uml_finishsetup(void);
54 
55 struct siginfo;
56 extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *);
57 
58 #endif
59 
60 #endif
61