LXR linux/arch/um/include/as-layout.h

   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 "uml-config.h"
  10#include "kern_constants.h"
  11
  12/*
  13 * Stolen from linux/const.h, which can't be directly included since
  14 * this is used in userspace code, which has no access to the kernel
  15 * headers.  Changed to be suitable for adding casts to the start,
  16 * rather than "UL" to the end.
  17 */
  18
  19/* Some constant macros are used in both assembler and
  20 * C code.  Therefore we cannot annotate them always with
  21 * 'UL' and other type specifiers unilaterally.  We
  22 * use the following macros to deal with this.
  23 */
  24
  25#ifdef __ASSEMBLY__
  26#define _AC(X, Y)       (Y)
  27#else
  28#define __AC(X, Y)      (X (Y))
  29#define _AC(X, Y)       __AC(X, Y)
  30#endif
  31
  32#define STUB_START _AC(, 0x100000)
  33#define STUB_CODE _AC((unsigned long), STUB_START)
  34#define STUB_DATA _AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE)
  35#define STUB_END _AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE)
  36
  37#ifndef __ASSEMBLY__
  38
  39#include "sysdep/ptrace.h"
  40
  41struct cpu_task {
  42        int pid;
  43        void *task;
  44};
  45
  46extern struct cpu_task cpu_tasks[];
  47
  48extern unsigned long low_physmem;
  49extern unsigned long high_physmem;
  50extern unsigned long uml_physmem;
  51extern unsigned long uml_reserved;
  52extern unsigned long end_vm;
  53extern unsigned long start_vm;
  54extern unsigned long long highmem;
  55
  56extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
  57extern unsigned long _unprotected_end;
  58extern unsigned long brk_start;
  59
  60extern unsigned long host_task_size;
  61
  62extern int linux_main(int argc, char **argv);
  63
  64extern void (*sig_info[])(int, struct uml_pt_regs *);
  65
  66#endif
  67
  68#endif
  69