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 2 /* 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 void *task;
35 };
36
37 extern struct cpu_task cpu_tasks[];
38
39 extern unsigned long high_physmem;
40 extern unsigned long uml_physmem;
41 extern unsigned long uml_reserved;
42 extern unsigned long end_vm;
43 extern unsigned long start_vm;
44 extern unsigned long long highmem;
45
46 extern unsigned long brk_start;
47
48 extern unsigned long host_task_size;
49 extern unsigned long stub_start;
50
51 extern int linux_main(int argc, char **argv);
52 extern void uml_finishsetup(void);
53
54 struct siginfo;
55 extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *);
56
57 #endif
58
59 #endif
60
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