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-rw-r--r--arch/um/include/shared/as-layout.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h
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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 "kern_constants.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
40struct cpu_task {
41 int pid;
42 void *task;
43};
44
45extern struct cpu_task cpu_tasks[];
46
47extern unsigned long low_physmem;
48extern unsigned long high_physmem;
49extern unsigned long uml_physmem;
50extern unsigned long uml_reserved;
51extern unsigned long end_vm;
52extern unsigned long start_vm;
53extern unsigned long long highmem;
54
55extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
56extern unsigned long _unprotected_end;
57extern unsigned long brk_start;
58
59extern unsigned long host_task_size;
60
61extern int linux_main(int argc, char **argv);
62
63extern void (*sig_info[])(int, struct uml_pt_regs *);
64
65#endif
66
67#endif