64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
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/*
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* Copyright (C) 1995-2001 Russell King
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* 2001-2002 Keith Owens
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* 2003 Ian Molton
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*
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* Generate definitions needed by assembly language modules.
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* This code generates raw asm output which is post-processed to extract
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* and format the required data.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/config.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <asm/pgtable.h>
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#include <asm/uaccess.h>
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/*
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* Make sure that the compiler and target are compatible.
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*/
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#if defined(__APCS_32__) && defined(CONFIG_CPU_26)
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#error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26
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#endif
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
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#error Sorry, your compiler is known to miscompile kernels. Only use gcc 2.95.3 and later.
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#endif
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#if __GNUC__ == 2 && __GNUC_MINOR__ == 95
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/* shame we can't detect the .1 or .2 releases */
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#warning GCC 2.95.2 and earlier miscompiles kernels.
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#endif
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/* Use marker if you need to separate the values later */
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#define DEFINE(sym, val) \
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asm volatile("\n->" #sym " %0 " #val : : "i" (val))
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#define BLANK() asm volatile("\n->" : : )
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int main(void)
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{
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DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
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BLANK();
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DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
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DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
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BLANK();
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DEFINE(VM_EXEC, VM_EXEC);
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BLANK();
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BLANK();
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DEFINE(PAGE_PRESENT, _PAGE_PRESENT);
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DEFINE(PAGE_READONLY, _PAGE_READONLY);
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DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER);
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DEFINE(PAGE_OLD, _PAGE_OLD);
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DEFINE(PAGE_CLEAN, _PAGE_CLEAN);
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BLANK();
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DEFINE(PAGE_SZ, PAGE_SIZE);
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BLANK();
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DEFINE(SYS_ERROR0, 0x9f0000);
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return 0;
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}
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