arch/arm/kernel/asm-offsets.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 1995-2003 Russell King
   4  *               2001-2002 Keith Owens
   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 #include <linux/compiler.h>
  11 #include <linux/sched.h>
  12 #include <linux/mm.h>
  13 #include <linux/dma-mapping.h>
  14 #include <asm/cacheflush.h>
  15 #include <asm/kexec-internal.h>
  16 #include <asm/glue-df.h>
  17 #include <asm/glue-pf.h>
  18 #include <asm/mach/arch.h>
  19 #include <asm/thread_info.h>
  20 #include <asm/page.h>
  21 #include <asm/mpu.h>
  22 #include <asm/procinfo.h>
  23 #include <asm/suspend.h>
  24 #include <asm/hardware/cache-l2x0.h>
  25 #include <linux/kbuild.h>
  26 #include <linux/arm-smccc.h>
  27
  28 #include <vdso/datapage.h>
  29
  30 #include "signal.h"
  31
  32 /*
  33  * Make sure that the compiler and target are compatible.
  34  */
  35 #if defined(__APCS_26__)
  36 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
  37 #endif
  38
  39 int main(void)
  40 {
  41   DEFINE(TSK_ACTIVE_MM,         offsetof(struct task_struct, active_mm));
  42 #ifdef CONFIG_STACKPROTECTOR
  43   DEFINE(TSK_STACK_CANARY,      offsetof(struct task_struct, stack_canary));
  44 #endif
  45   BLANK();
  46   DEFINE(TI_FLAGS,              offsetof(struct thread_info, flags));
  47   DEFINE(TI_PREEMPT,            offsetof(struct thread_info, preempt_count));
  48   DEFINE(TI_CPU,                offsetof(struct thread_info, cpu));
  49   DEFINE(TI_CPU_DOMAIN,         offsetof(struct thread_info, cpu_domain));
  50   DEFINE(TI_CPU_SAVE,           offsetof(struct thread_info, cpu_context));
  51   DEFINE(TI_ABI_SYSCALL,        offsetof(struct thread_info, abi_syscall));
  52   DEFINE(TI_TP_VALUE,           offsetof(struct thread_info, tp_value));
  53   DEFINE(TI_FPSTATE,            offsetof(struct thread_info, fpstate));
  54 #ifdef CONFIG_VFP
  55   DEFINE(TI_VFPSTATE,           offsetof(struct thread_info, vfpstate));
  56 #ifdef CONFIG_SMP
  57   DEFINE(VFP_CPU,               offsetof(union vfp_state, hard.cpu));
  58 #endif
  59 #endif
  60   DEFINE(SOFTIRQ_DISABLE_OFFSET,SOFTIRQ_DISABLE_OFFSET);
  61 #ifdef CONFIG_ARM_THUMBEE
  62   DEFINE(TI_THUMBEE_STATE,      offsetof(struct thread_info, thumbee_state));
  63 #endif
  64 #ifdef CONFIG_IWMMXT
  65   DEFINE(TI_IWMMXT_STATE,       offsetof(struct thread_info, fpstate.iwmmxt));
  66 #endif
  67   BLANK();
  68   DEFINE(S_R0,                  offsetof(struct pt_regs, ARM_r0));
  69   DEFINE(S_R1,                  offsetof(struct pt_regs, ARM_r1));
  70   DEFINE(S_R2,                  offsetof(struct pt_regs, ARM_r2));
  71   DEFINE(S_R3,                  offsetof(struct pt_regs, ARM_r3));
  72   DEFINE(S_R4,                  offsetof(struct pt_regs, ARM_r4));
  73   DEFINE(S_R5,                  offsetof(struct pt_regs, ARM_r5));
  74   DEFINE(S_R6,                  offsetof(struct pt_regs, ARM_r6));
  75   DEFINE(S_R7,                  offsetof(struct pt_regs, ARM_r7));
  76   DEFINE(S_R8,                  offsetof(struct pt_regs, ARM_r8));
  77   DEFINE(S_R9,                  offsetof(struct pt_regs, ARM_r9));
  78   DEFINE(S_R10,                 offsetof(struct pt_regs, ARM_r10));
  79   DEFINE(S_FP,                  offsetof(struct pt_regs, ARM_fp));
  80   DEFINE(S_IP,                  offsetof(struct pt_regs, ARM_ip));
  81   DEFINE(S_SP,                  offsetof(struct pt_regs, ARM_sp));
  82   DEFINE(S_LR,                  offsetof(struct pt_regs, ARM_lr));
  83   DEFINE(S_PC,                  offsetof(struct pt_regs, ARM_pc));
  84   DEFINE(S_PSR,                 offsetof(struct pt_regs, ARM_cpsr));
  85   DEFINE(S_OLD_R0,              offsetof(struct pt_regs, ARM_ORIG_r0));
  86   DEFINE(PT_REGS_SIZE,          sizeof(struct pt_regs));
  87   DEFINE(SVC_DACR,              offsetof(struct svc_pt_regs, dacr));
  88   DEFINE(SVC_TTBCR,             offsetof(struct svc_pt_regs, ttbcr));
  89   DEFINE(SVC_REGS_SIZE,         sizeof(struct svc_pt_regs));
  90   BLANK();
  91   DEFINE(SIGFRAME_RC3_OFFSET,   offsetof(struct sigframe, retcode[3]));
  92   DEFINE(RT_SIGFRAME_RC3_OFFSET, offsetof(struct rt_sigframe, sig.retcode[3]));
  93   BLANK();
  94 #ifdef CONFIG_CACHE_L2X0
  95   DEFINE(L2X0_R_PHY_BASE,       offsetof(struct l2x0_regs, phy_base));
  96   DEFINE(L2X0_R_AUX_CTRL,       offsetof(struct l2x0_regs, aux_ctrl));
  97   DEFINE(L2X0_R_TAG_LATENCY,    offsetof(struct l2x0_regs, tag_latency));
  98   DEFINE(L2X0_R_DATA_LATENCY,   offsetof(struct l2x0_regs, data_latency));
  99   DEFINE(L2X0_R_FILTER_START,   offsetof(struct l2x0_regs, filter_start));
 100   DEFINE(L2X0_R_FILTER_END,     offsetof(struct l2x0_regs, filter_end));
 101   DEFINE(L2X0_R_PREFETCH_CTRL,  offsetof(struct l2x0_regs, prefetch_ctrl));
 102   DEFINE(L2X0_R_PWR_CTRL,       offsetof(struct l2x0_regs, pwr_ctrl));
 103   BLANK();
 104 #endif
 105 #ifdef CONFIG_CPU_HAS_ASID
 106   DEFINE(MM_CONTEXT_ID,         offsetof(struct mm_struct, context.id.counter));
 107   BLANK();
 108 #endif
 109   DEFINE(VMA_VM_MM,             offsetof(struct vm_area_struct, vm_mm));
 110   DEFINE(VMA_VM_FLAGS,          offsetof(struct vm_area_struct, vm_flags));
 111   BLANK();
 112   DEFINE(VM_EXEC,               VM_EXEC);
 113   BLANK();
 114   DEFINE(PAGE_SZ,               PAGE_SIZE);
 115   BLANK();
 116   DEFINE(SYS_ERROR0,            0x9f0000);
 117   BLANK();
 118   DEFINE(SIZEOF_MACHINE_DESC,   sizeof(struct machine_desc));
 119   DEFINE(MACHINFO_TYPE,         offsetof(struct machine_desc, nr));
 120   DEFINE(MACHINFO_NAME,         offsetof(struct machine_desc, name));
 121   BLANK();
 122   DEFINE(PROC_INFO_SZ,          sizeof(struct proc_info_list));
 123   DEFINE(PROCINFO_INITFUNC,     offsetof(struct proc_info_list, __cpu_flush));
 124   DEFINE(PROCINFO_MM_MMUFLAGS,  offsetof(struct proc_info_list, __cpu_mm_mmu_flags));
 125   DEFINE(PROCINFO_IO_MMUFLAGS,  offsetof(struct proc_info_list, __cpu_io_mmu_flags));
 126   BLANK();
 127 #ifdef MULTI_DABORT
 128   DEFINE(PROCESSOR_DABT_FUNC,   offsetof(struct processor, _data_abort));
 129 #endif
 130 #ifdef MULTI_PABORT
 131   DEFINE(PROCESSOR_PABT_FUNC,   offsetof(struct processor, _prefetch_abort));
 132 #endif
 133 #ifdef MULTI_CPU
 134   DEFINE(CPU_SLEEP_SIZE,        offsetof(struct processor, suspend_size));
 135   DEFINE(CPU_DO_SUSPEND,        offsetof(struct processor, do_suspend));
 136   DEFINE(CPU_DO_RESUME,         offsetof(struct processor, do_resume));
 137 #endif
 138 #ifdef MULTI_CACHE
 139   DEFINE(CACHE_FLUSH_KERN_ALL,  offsetof(struct cpu_cache_fns, flush_kern_all));
 140 #endif
 141 #ifdef CONFIG_ARM_CPU_SUSPEND
 142   DEFINE(SLEEP_SAVE_SP_SZ,      sizeof(struct sleep_save_sp));
 143   DEFINE(SLEEP_SAVE_SP_PHYS,    offsetof(struct sleep_save_sp, save_ptr_stash_phys));
 144   DEFINE(SLEEP_SAVE_SP_VIRT,    offsetof(struct sleep_save_sp, save_ptr_stash));
 145 #endif
 146   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,       offsetof(struct arm_smccc_quirk, id));
 147   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,    offsetof(struct arm_smccc_quirk, state));
 148   BLANK();
 149   DEFINE(DMA_BIDIRECTIONAL,     DMA_BIDIRECTIONAL);
 150   DEFINE(DMA_TO_DEVICE,         DMA_TO_DEVICE);
 151   DEFINE(DMA_FROM_DEVICE,       DMA_FROM_DEVICE);
 152   BLANK();
 153   DEFINE(CACHE_WRITEBACK_ORDER, __CACHE_WRITEBACK_ORDER);
 154   DEFINE(CACHE_WRITEBACK_GRANULE, __CACHE_WRITEBACK_GRANULE);
 155   BLANK();
 156 #ifdef CONFIG_VDSO
 157   DEFINE(VDSO_DATA_SIZE,        sizeof(union vdso_data_store));
 158 #endif
 159   BLANK();
 160 #ifdef CONFIG_ARM_MPU
 161   DEFINE(MPU_RNG_INFO_RNGS,     offsetof(struct mpu_rgn_info, rgns));
 162   DEFINE(MPU_RNG_INFO_USED,     offsetof(struct mpu_rgn_info, used));
 163
 164   DEFINE(MPU_RNG_SIZE,          sizeof(struct mpu_rgn));
 165   DEFINE(MPU_RGN_DRBAR, offsetof(struct mpu_rgn, drbar));
 166   DEFINE(MPU_RGN_DRSR,  offsetof(struct mpu_rgn, drsr));
 167   DEFINE(MPU_RGN_DRACR, offsetof(struct mpu_rgn, dracr));
 168   DEFINE(MPU_RGN_PRBAR, offsetof(struct mpu_rgn, prbar));
 169   DEFINE(MPU_RGN_PRLAR, offsetof(struct mpu_rgn, prlar));
 170 #endif
 171   DEFINE(KEXEC_START_ADDR,      offsetof(struct kexec_relocate_data, kexec_start_address));
 172   DEFINE(KEXEC_INDIR_PAGE,      offsetof(struct kexec_relocate_data, kexec_indirection_page));
 173   DEFINE(KEXEC_MACH_TYPE,       offsetof(struct kexec_relocate_data, kexec_mach_type));
 174   DEFINE(KEXEC_R2,              offsetof(struct kexec_relocate_data, kexec_r2));
 175   return 0;
 176 }