Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 1995-2001 Russell King |
| 3 | * 2001-2002 Keith Owens |
| 4 | * 2003 Ian Molton |
| 5 | * |
| 6 | * Generate definitions needed by assembly language modules. |
| 7 | * This code generates raw asm output which is post-processed to extract |
| 8 | * and format the required data. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/config.h> |
| 16 | #include <linux/sched.h> |
| 17 | #include <linux/mm.h> |
| 18 | |
| 19 | #include <asm/pgtable.h> |
| 20 | #include <asm/uaccess.h> |
| 21 | |
| 22 | /* |
| 23 | * Make sure that the compiler and target are compatible. |
| 24 | */ |
| 25 | #if defined(__APCS_32__) && defined(CONFIG_CPU_26) |
| 26 | #error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26 |
| 27 | #endif |
| 28 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95) |
| 29 | #error Sorry, your compiler is known to miscompile kernels. Only use gcc 2.95.3 and later. |
| 30 | #endif |
| 31 | #if __GNUC__ == 2 && __GNUC_MINOR__ == 95 |
| 32 | /* shame we can't detect the .1 or .2 releases */ |
| 33 | #warning GCC 2.95.2 and earlier miscompiles kernels. |
| 34 | #endif |
| 35 | |
| 36 | /* Use marker if you need to separate the values later */ |
| 37 | |
| 38 | #define DEFINE(sym, val) \ |
| 39 | asm volatile("\n->" #sym " %0 " #val : : "i" (val)) |
| 40 | |
| 41 | #define BLANK() asm volatile("\n->" : : ) |
| 42 | |
| 43 | int main(void) |
| 44 | { |
| 45 | DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); |
| 46 | BLANK(); |
| 47 | DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); |
| 48 | DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags)); |
| 49 | BLANK(); |
| 50 | DEFINE(VM_EXEC, VM_EXEC); |
| 51 | BLANK(); |
| 52 | BLANK(); |
| 53 | DEFINE(PAGE_PRESENT, _PAGE_PRESENT); |
| 54 | DEFINE(PAGE_READONLY, _PAGE_READONLY); |
| 55 | DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER); |
| 56 | DEFINE(PAGE_OLD, _PAGE_OLD); |
| 57 | DEFINE(PAGE_CLEAN, _PAGE_CLEAN); |
| 58 | BLANK(); |
| 59 | DEFINE(PAGE_SZ, PAGE_SIZE); |
| 60 | BLANK(); |
| 61 | DEFINE(SYS_ERROR0, 0x9f0000); |
| 62 | return 0; |
| 63 | } |