1 /* 2 * Copyright (C) 1995-2003 Russell King 3 * 2001-2002 Keith Owens 4 * 5 * Generate definitions needed by assembly language modules. 6 * This code generates raw asm output which is post-processed to extract 7 * and format the required data. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 #include <linux/sched.h> 14 #include <linux/mm.h> 15 #include <asm/mach/arch.h> 16 #include <asm/thread_info.h> 17 #include <asm/memory.h> 18 19 /* 20 * Make sure that the compiler and target are compatible. 21 */ 22 #if defined(__APCS_26__) 23 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32 24 #endif 25 /* 26 * GCC 3.0, 3.1: general bad code generation. 27 * GCC 3.2.0: incorrect function argument offset calculation. 28 * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c 29 * (http://gcc.gnu.org/PR8896) and incorrect structure 30 * initialisation in fs/jffs2/erase.c 31 */ 32 #if (__GNUC__ == 3 && __GNUC_MINOR__ < 3) 33 #error Your compiler is too buggy; it is known to miscompile kernels. 34 #error Known good compilers: 3.3 35 #endif 36 37 /* Use marker if you need to separate the values later */ 38 39 #define DEFINE(sym, val) \ 40 asm volatile("\n->" #sym " %0 " #val : : "i" (val)) 41 42 #define BLANK() asm volatile("\n->" : : ) 43 44 int main(void) 45 { 46 DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); 47 BLANK(); 48 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); 49 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); 50 DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit)); 51 DEFINE(TI_TASK, offsetof(struct thread_info, task)); 52 DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain)); 53 DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); 54 DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain)); 55 DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context)); 56 DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp)); 57 DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value)); 58 DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate)); 59 DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate)); 60 DEFINE(TI_IWMMXT_STATE, (offsetof(struct thread_info, fpstate)+4)&~7); 61 BLANK(); 62 DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0)); 63 DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1)); 64 DEFINE(S_R2, offsetof(struct pt_regs, ARM_r2)); 65 DEFINE(S_R3, offsetof(struct pt_regs, ARM_r3)); 66 DEFINE(S_R4, offsetof(struct pt_regs, ARM_r4)); 67 DEFINE(S_R5, offsetof(struct pt_regs, ARM_r5)); 68 DEFINE(S_R6, offsetof(struct pt_regs, ARM_r6)); 69 DEFINE(S_R7, offsetof(struct pt_regs, ARM_r7)); 70 DEFINE(S_R8, offsetof(struct pt_regs, ARM_r8)); 71 DEFINE(S_R9, offsetof(struct pt_regs, ARM_r9)); 72 DEFINE(S_R10, offsetof(struct pt_regs, ARM_r10)); 73 DEFINE(S_FP, offsetof(struct pt_regs, ARM_fp)); 74 DEFINE(S_IP, offsetof(struct pt_regs, ARM_ip)); 75 DEFINE(S_SP, offsetof(struct pt_regs, ARM_sp)); 76 DEFINE(S_LR, offsetof(struct pt_regs, ARM_lr)); 77 DEFINE(S_PC, offsetof(struct pt_regs, ARM_pc)); 78 DEFINE(S_PSR, offsetof(struct pt_regs, ARM_cpsr)); 79 DEFINE(S_OLD_R0, offsetof(struct pt_regs, ARM_ORIG_r0)); 80 DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs)); 81 BLANK(); 82 #if __LINUX_ARM_ARCH__ >= 6 83 DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id)); 84 BLANK(); 85 #endif 86 DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); 87 DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags)); 88 BLANK(); 89 DEFINE(VM_EXEC, VM_EXEC); 90 BLANK(); 91 DEFINE(PAGE_SZ, PAGE_SIZE); 92 BLANK(); 93 DEFINE(SYS_ERROR0, 0x9f0000); 94 BLANK(); 95 DEFINE(SIZEOF_MACHINE_DESC, sizeof(struct machine_desc)); 96 return 0; 97 } 98