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/compiler.h> 14 #include <linux/sched.h> 15 #include <linux/mm.h> 16 #include <linux/dma-mapping.h> 17 #ifdef CONFIG_KVM_ARM_HOST 18 #include <linux/kvm_host.h> 19 #endif 20 #include <asm/cacheflush.h> 21 #include <asm/glue-df.h> 22 #include <asm/glue-pf.h> 23 #include <asm/mach/arch.h> 24 #include <asm/thread_info.h> 25 #include <asm/memory.h> 26 #include <asm/mpu.h> 27 #include <asm/procinfo.h> 28 #include <asm/suspend.h> 29 #include <asm/vdso_datapage.h> 30 #include <asm/hardware/cache-l2x0.h> 31 #include <linux/kbuild.h> 32 #include "signal.h" 33 34 /* 35 * Make sure that the compiler and target are compatible. 36 */ 37 #if defined(__APCS_26__) 38 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32 39 #endif 40 /* 41 * GCC 3.0, 3.1: general bad code generation. 42 * GCC 3.2.0: incorrect function argument offset calculation. 43 * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c 44 * (http://gcc.gnu.org/PR8896) and incorrect structure 45 * initialisation in fs/jffs2/erase.c 46 * GCC 4.8.0-4.8.2: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854 47 * miscompiles find_get_entry(), and can result in EXT3 and EXT4 48 * filesystem corruption (possibly other FS too). 49 */ 50 #ifdef __GNUC__ 51 #if (__GNUC__ == 3 && __GNUC_MINOR__ < 3) 52 #error Your compiler is too buggy; it is known to miscompile kernels. 53 #error Known good compilers: 3.3, 4.x 54 #endif 55 #if GCC_VERSION >= 40800 && GCC_VERSION < 40803 56 #error Your compiler is too buggy; it is known to miscompile kernels 57 #error and result in filesystem corruption and oopses. 58 #endif 59 #endif 60 61 int main(void) 62 { 63 DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); 64 #ifdef CONFIG_CC_STACKPROTECTOR 65 DEFINE(TSK_STACK_CANARY, offsetof(struct task_struct, stack_canary)); 66 #endif 67 BLANK(); 68 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); 69 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); 70 DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit)); 71 DEFINE(TI_TASK, offsetof(struct thread_info, task)); 72 DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); 73 DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain)); 74 DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context)); 75 DEFINE(TI_USED_CP, offsetof(struct thread_info, used_cp)); 76 DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value)); 77 DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate)); 78 #ifdef CONFIG_VFP 79 DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate)); 80 #ifdef CONFIG_SMP 81 DEFINE(VFP_CPU, offsetof(union vfp_state, hard.cpu)); 82 #endif 83 #endif 84 #ifdef CONFIG_ARM_THUMBEE 85 DEFINE(TI_THUMBEE_STATE, offsetof(struct thread_info, thumbee_state)); 86 #endif 87 #ifdef CONFIG_IWMMXT 88 DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt)); 89 #endif 90 #ifdef CONFIG_CRUNCH 91 DEFINE(TI_CRUNCH_STATE, offsetof(struct thread_info, crunchstate)); 92 #endif 93 BLANK(); 94 DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0)); 95 DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1)); 96 DEFINE(S_R2, offsetof(struct pt_regs, ARM_r2)); 97 DEFINE(S_R3, offsetof(struct pt_regs, ARM_r3)); 98 DEFINE(S_R4, offsetof(struct pt_regs, ARM_r4)); 99 DEFINE(S_R5, offsetof(struct pt_regs, ARM_r5)); 100 DEFINE(S_R6, offsetof(struct pt_regs, ARM_r6)); 101 DEFINE(S_R7, offsetof(struct pt_regs, ARM_r7)); 102 DEFINE(S_R8, offsetof(struct pt_regs, ARM_r8)); 103 DEFINE(S_R9, offsetof(struct pt_regs, ARM_r9)); 104 DEFINE(S_R10, offsetof(struct pt_regs, ARM_r10)); 105 DEFINE(S_FP, offsetof(struct pt_regs, ARM_fp)); 106 DEFINE(S_IP, offsetof(struct pt_regs, ARM_ip)); 107 DEFINE(S_SP, offsetof(struct pt_regs, ARM_sp)); 108 DEFINE(S_LR, offsetof(struct pt_regs, ARM_lr)); 109 DEFINE(S_PC, offsetof(struct pt_regs, ARM_pc)); 110 DEFINE(S_PSR, offsetof(struct pt_regs, ARM_cpsr)); 111 DEFINE(S_OLD_R0, offsetof(struct pt_regs, ARM_ORIG_r0)); 112 DEFINE(PT_REGS_SIZE, sizeof(struct pt_regs)); 113 DEFINE(SVC_DACR, offsetof(struct svc_pt_regs, dacr)); 114 DEFINE(SVC_ADDR_LIMIT, offsetof(struct svc_pt_regs, addr_limit)); 115 DEFINE(SVC_REGS_SIZE, sizeof(struct svc_pt_regs)); 116 BLANK(); 117 DEFINE(SIGFRAME_RC3_OFFSET, offsetof(struct sigframe, retcode[3])); 118 DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3])); 119 BLANK(); 120 #ifdef CONFIG_CACHE_L2X0 121 DEFINE(L2X0_R_PHY_BASE, offsetof(struct l2x0_regs, phy_base)); 122 DEFINE(L2X0_R_AUX_CTRL, offsetof(struct l2x0_regs, aux_ctrl)); 123 DEFINE(L2X0_R_TAG_LATENCY, offsetof(struct l2x0_regs, tag_latency)); 124 DEFINE(L2X0_R_DATA_LATENCY, offsetof(struct l2x0_regs, data_latency)); 125 DEFINE(L2X0_R_FILTER_START, offsetof(struct l2x0_regs, filter_start)); 126 DEFINE(L2X0_R_FILTER_END, offsetof(struct l2x0_regs, filter_end)); 127 DEFINE(L2X0_R_PREFETCH_CTRL, offsetof(struct l2x0_regs, prefetch_ctrl)); 128 DEFINE(L2X0_R_PWR_CTRL, offsetof(struct l2x0_regs, pwr_ctrl)); 129 BLANK(); 130 #endif 131 #ifdef CONFIG_CPU_HAS_ASID 132 DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id.counter)); 133 BLANK(); 134 #endif 135 DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); 136 DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags)); 137 BLANK(); 138 DEFINE(VM_EXEC, VM_EXEC); 139 BLANK(); 140 DEFINE(PAGE_SZ, PAGE_SIZE); 141 BLANK(); 142 DEFINE(SYS_ERROR0, 0x9f0000); 143 BLANK(); 144 DEFINE(SIZEOF_MACHINE_DESC, sizeof(struct machine_desc)); 145 DEFINE(MACHINFO_TYPE, offsetof(struct machine_desc, nr)); 146 DEFINE(MACHINFO_NAME, offsetof(struct machine_desc, name)); 147 BLANK(); 148 DEFINE(PROC_INFO_SZ, sizeof(struct proc_info_list)); 149 DEFINE(PROCINFO_INITFUNC, offsetof(struct proc_info_list, __cpu_flush)); 150 DEFINE(PROCINFO_MM_MMUFLAGS, offsetof(struct proc_info_list, __cpu_mm_mmu_flags)); 151 DEFINE(PROCINFO_IO_MMUFLAGS, offsetof(struct proc_info_list, __cpu_io_mmu_flags)); 152 BLANK(); 153 #ifdef MULTI_DABORT 154 DEFINE(PROCESSOR_DABT_FUNC, offsetof(struct processor, _data_abort)); 155 #endif 156 #ifdef MULTI_PABORT 157 DEFINE(PROCESSOR_PABT_FUNC, offsetof(struct processor, _prefetch_abort)); 158 #endif 159 #ifdef MULTI_CPU 160 DEFINE(CPU_SLEEP_SIZE, offsetof(struct processor, suspend_size)); 161 DEFINE(CPU_DO_SUSPEND, offsetof(struct processor, do_suspend)); 162 DEFINE(CPU_DO_RESUME, offsetof(struct processor, do_resume)); 163 #endif 164 #ifdef MULTI_CACHE 165 DEFINE(CACHE_FLUSH_KERN_ALL, offsetof(struct cpu_cache_fns, flush_kern_all)); 166 #endif 167 #ifdef CONFIG_ARM_CPU_SUSPEND 168 DEFINE(SLEEP_SAVE_SP_SZ, sizeof(struct sleep_save_sp)); 169 DEFINE(SLEEP_SAVE_SP_PHYS, offsetof(struct sleep_save_sp, save_ptr_stash_phys)); 170 DEFINE(SLEEP_SAVE_SP_VIRT, offsetof(struct sleep_save_sp, save_ptr_stash)); 171 #endif 172 BLANK(); 173 DEFINE(DMA_BIDIRECTIONAL, DMA_BIDIRECTIONAL); 174 DEFINE(DMA_TO_DEVICE, DMA_TO_DEVICE); 175 DEFINE(DMA_FROM_DEVICE, DMA_FROM_DEVICE); 176 BLANK(); 177 DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER); 178 DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE); 179 BLANK(); 180 #ifdef CONFIG_KVM_ARM_HOST 181 DEFINE(VCPU_GUEST_CTXT, offsetof(struct kvm_vcpu, arch.ctxt)); 182 DEFINE(VCPU_HOST_CTXT, offsetof(struct kvm_vcpu, arch.host_cpu_context)); 183 DEFINE(CPU_CTXT_VFP, offsetof(struct kvm_cpu_context, vfp)); 184 DEFINE(CPU_CTXT_GP_REGS, offsetof(struct kvm_cpu_context, gp_regs)); 185 DEFINE(GP_REGS_USR, offsetof(struct kvm_regs, usr_regs)); 186 #endif 187 BLANK(); 188 #ifdef CONFIG_VDSO 189 DEFINE(VDSO_DATA_SIZE, sizeof(union vdso_data_store)); 190 #endif 191 BLANK(); 192 #ifdef CONFIG_ARM_MPU 193 DEFINE(MPU_RNG_INFO_RNGS, offsetof(struct mpu_rgn_info, rgns)); 194 DEFINE(MPU_RNG_INFO_USED, offsetof(struct mpu_rgn_info, used)); 195 196 DEFINE(MPU_RNG_SIZE, sizeof(struct mpu_rgn)); 197 DEFINE(MPU_RGN_DRBAR, offsetof(struct mpu_rgn, drbar)); 198 DEFINE(MPU_RGN_DRSR, offsetof(struct mpu_rgn, drsr)); 199 DEFINE(MPU_RGN_DRACR, offsetof(struct mpu_rgn, dracr)); 200 #endif 201 return 0; 202 } 203