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