LXR linux/arch/um/include/shared/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 <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
  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
  63struct siginfo;
  64extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *);
  65
  66#endif
  67
  68#endif
  69