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0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Based on arch/arm/kernel/asm-offsets.c
0004  *
0005  * Copyright (C) 1995-2003 Russell King
0006  *               2001-2002 Keith Owens
0007  * Copyright (C) 2012 ARM Ltd.
0008  */
0009 
0010 #include <linux/arm_sdei.h>
0011 #include <linux/sched.h>
0012 #include <linux/kexec.h>
0013 #include <linux/mm.h>
0014 #include <linux/dma-mapping.h>
0015 #include <linux/kvm_host.h>
0016 #include <linux/preempt.h>
0017 #include <linux/suspend.h>
0018 #include <asm/cpufeature.h>
0019 #include <asm/fixmap.h>
0020 #include <asm/thread_info.h>
0021 #include <asm/memory.h>
0022 #include <asm/signal32.h>
0023 #include <asm/smp_plat.h>
0024 #include <asm/suspend.h>
0025 #include <linux/kbuild.h>
0026 #include <linux/arm-smccc.h>
0027 
0028 int main(void)
0029 {
0030   DEFINE(TSK_ACTIVE_MM,     offsetof(struct task_struct, active_mm));
0031   BLANK();
0032   DEFINE(TSK_TI_CPU,        offsetof(struct task_struct, thread_info.cpu));
0033   DEFINE(TSK_TI_FLAGS,      offsetof(struct task_struct, thread_info.flags));
0034   DEFINE(TSK_TI_PREEMPT,    offsetof(struct task_struct, thread_info.preempt_count));
0035 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
0036   DEFINE(TSK_TI_TTBR0,      offsetof(struct task_struct, thread_info.ttbr0));
0037 #endif
0038 #ifdef CONFIG_SHADOW_CALL_STACK
0039   DEFINE(TSK_TI_SCS_BASE,   offsetof(struct task_struct, thread_info.scs_base));
0040   DEFINE(TSK_TI_SCS_SP,     offsetof(struct task_struct, thread_info.scs_sp));
0041 #endif
0042   DEFINE(TSK_STACK,     offsetof(struct task_struct, stack));
0043 #ifdef CONFIG_STACKPROTECTOR
0044   DEFINE(TSK_STACK_CANARY,  offsetof(struct task_struct, stack_canary));
0045 #endif
0046   BLANK();
0047   DEFINE(THREAD_CPU_CONTEXT,    offsetof(struct task_struct, thread.cpu_context));
0048   DEFINE(THREAD_SCTLR_USER, offsetof(struct task_struct, thread.sctlr_user));
0049 #ifdef CONFIG_ARM64_PTR_AUTH
0050   DEFINE(THREAD_KEYS_USER,  offsetof(struct task_struct, thread.keys_user));
0051 #endif
0052 #ifdef CONFIG_ARM64_PTR_AUTH_KERNEL
0053   DEFINE(THREAD_KEYS_KERNEL,    offsetof(struct task_struct, thread.keys_kernel));
0054 #endif
0055 #ifdef CONFIG_ARM64_MTE
0056   DEFINE(THREAD_MTE_CTRL,   offsetof(struct task_struct, thread.mte_ctrl));
0057 #endif
0058   BLANK();
0059   DEFINE(S_X0,          offsetof(struct pt_regs, regs[0]));
0060   DEFINE(S_X2,          offsetof(struct pt_regs, regs[2]));
0061   DEFINE(S_X4,          offsetof(struct pt_regs, regs[4]));
0062   DEFINE(S_X6,          offsetof(struct pt_regs, regs[6]));
0063   DEFINE(S_X8,          offsetof(struct pt_regs, regs[8]));
0064   DEFINE(S_X10,         offsetof(struct pt_regs, regs[10]));
0065   DEFINE(S_X12,         offsetof(struct pt_regs, regs[12]));
0066   DEFINE(S_X14,         offsetof(struct pt_regs, regs[14]));
0067   DEFINE(S_X16,         offsetof(struct pt_regs, regs[16]));
0068   DEFINE(S_X18,         offsetof(struct pt_regs, regs[18]));
0069   DEFINE(S_X20,         offsetof(struct pt_regs, regs[20]));
0070   DEFINE(S_X22,         offsetof(struct pt_regs, regs[22]));
0071   DEFINE(S_X24,         offsetof(struct pt_regs, regs[24]));
0072   DEFINE(S_X26,         offsetof(struct pt_regs, regs[26]));
0073   DEFINE(S_X28,         offsetof(struct pt_regs, regs[28]));
0074   DEFINE(S_FP,          offsetof(struct pt_regs, regs[29]));
0075   DEFINE(S_LR,          offsetof(struct pt_regs, regs[30]));
0076   DEFINE(S_SP,          offsetof(struct pt_regs, sp));
0077   DEFINE(S_PSTATE,      offsetof(struct pt_regs, pstate));
0078   DEFINE(S_PC,          offsetof(struct pt_regs, pc));
0079   DEFINE(S_SYSCALLNO,       offsetof(struct pt_regs, syscallno));
0080   DEFINE(S_SDEI_TTBR1,      offsetof(struct pt_regs, sdei_ttbr1));
0081   DEFINE(S_PMR_SAVE,        offsetof(struct pt_regs, pmr_save));
0082   DEFINE(S_STACKFRAME,      offsetof(struct pt_regs, stackframe));
0083   DEFINE(PT_REGS_SIZE,      sizeof(struct pt_regs));
0084   BLANK();
0085 #ifdef CONFIG_COMPAT
0086   DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,       offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
0087   DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,    offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
0088   BLANK();
0089 #endif
0090   DEFINE(MM_CONTEXT_ID,     offsetof(struct mm_struct, context.id.counter));
0091   BLANK();
0092   DEFINE(VMA_VM_MM,     offsetof(struct vm_area_struct, vm_mm));
0093   DEFINE(VMA_VM_FLAGS,      offsetof(struct vm_area_struct, vm_flags));
0094   BLANK();
0095   DEFINE(VM_EXEC,           VM_EXEC);
0096   BLANK();
0097   DEFINE(PAGE_SZ,           PAGE_SIZE);
0098   BLANK();
0099   DEFINE(DMA_TO_DEVICE,     DMA_TO_DEVICE);
0100   DEFINE(DMA_FROM_DEVICE,   DMA_FROM_DEVICE);
0101   BLANK();
0102   DEFINE(PREEMPT_DISABLE_OFFSET, PREEMPT_DISABLE_OFFSET);
0103   DEFINE(SOFTIRQ_SHIFT, SOFTIRQ_SHIFT);
0104   DEFINE(IRQ_CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
0105   BLANK();
0106   DEFINE(CPU_BOOT_TASK,     offsetof(struct secondary_data, task));
0107   BLANK();
0108   DEFINE(FTR_OVR_VAL_OFFSET,    offsetof(struct arm64_ftr_override, val));
0109   DEFINE(FTR_OVR_MASK_OFFSET,   offsetof(struct arm64_ftr_override, mask));
0110   BLANK();
0111 #ifdef CONFIG_KVM
0112   DEFINE(VCPU_CONTEXT,      offsetof(struct kvm_vcpu, arch.ctxt));
0113   DEFINE(VCPU_FAULT_DISR,   offsetof(struct kvm_vcpu, arch.fault.disr_el1));
0114   DEFINE(VCPU_HCR_EL2,      offsetof(struct kvm_vcpu, arch.hcr_el2));
0115   DEFINE(CPU_USER_PT_REGS,  offsetof(struct kvm_cpu_context, regs));
0116   DEFINE(CPU_RGSR_EL1,      offsetof(struct kvm_cpu_context, sys_regs[RGSR_EL1]));
0117   DEFINE(CPU_GCR_EL1,       offsetof(struct kvm_cpu_context, sys_regs[GCR_EL1]));
0118   DEFINE(CPU_APIAKEYLO_EL1, offsetof(struct kvm_cpu_context, sys_regs[APIAKEYLO_EL1]));
0119   DEFINE(CPU_APIBKEYLO_EL1, offsetof(struct kvm_cpu_context, sys_regs[APIBKEYLO_EL1]));
0120   DEFINE(CPU_APDAKEYLO_EL1, offsetof(struct kvm_cpu_context, sys_regs[APDAKEYLO_EL1]));
0121   DEFINE(CPU_APDBKEYLO_EL1, offsetof(struct kvm_cpu_context, sys_regs[APDBKEYLO_EL1]));
0122   DEFINE(CPU_APGAKEYLO_EL1, offsetof(struct kvm_cpu_context, sys_regs[APGAKEYLO_EL1]));
0123   DEFINE(HOST_CONTEXT_VCPU, offsetof(struct kvm_cpu_context, __hyp_running_vcpu));
0124   DEFINE(HOST_DATA_CONTEXT, offsetof(struct kvm_host_data, host_ctxt));
0125   DEFINE(NVHE_INIT_MAIR_EL2,    offsetof(struct kvm_nvhe_init_params, mair_el2));
0126   DEFINE(NVHE_INIT_TCR_EL2, offsetof(struct kvm_nvhe_init_params, tcr_el2));
0127   DEFINE(NVHE_INIT_TPIDR_EL2,   offsetof(struct kvm_nvhe_init_params, tpidr_el2));
0128   DEFINE(NVHE_INIT_STACK_HYP_VA,    offsetof(struct kvm_nvhe_init_params, stack_hyp_va));
0129   DEFINE(NVHE_INIT_PGD_PA,  offsetof(struct kvm_nvhe_init_params, pgd_pa));
0130   DEFINE(NVHE_INIT_HCR_EL2, offsetof(struct kvm_nvhe_init_params, hcr_el2));
0131   DEFINE(NVHE_INIT_VTTBR,   offsetof(struct kvm_nvhe_init_params, vttbr));
0132   DEFINE(NVHE_INIT_VTCR,    offsetof(struct kvm_nvhe_init_params, vtcr));
0133 #endif
0134 #ifdef CONFIG_CPU_PM
0135   DEFINE(CPU_CTX_SP,        offsetof(struct cpu_suspend_ctx, sp));
0136   DEFINE(MPIDR_HASH_MASK,   offsetof(struct mpidr_hash, mask));
0137   DEFINE(MPIDR_HASH_SHIFTS, offsetof(struct mpidr_hash, shift_aff));
0138   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,  offsetof(struct sleep_stack_data, system_regs));
0139   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,  offsetof(struct sleep_stack_data, callee_saved_regs));
0140 #endif
0141   DEFINE(ARM_SMCCC_RES_X0_OFFS,     offsetof(struct arm_smccc_res, a0));
0142   DEFINE(ARM_SMCCC_RES_X2_OFFS,     offsetof(struct arm_smccc_res, a2));
0143   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,   offsetof(struct arm_smccc_quirk, id));
0144   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,    offsetof(struct arm_smccc_quirk, state));
0145   DEFINE(ARM_SMCCC_1_2_REGS_X0_OFFS,    offsetof(struct arm_smccc_1_2_regs, a0));
0146   DEFINE(ARM_SMCCC_1_2_REGS_X2_OFFS,    offsetof(struct arm_smccc_1_2_regs, a2));
0147   DEFINE(ARM_SMCCC_1_2_REGS_X4_OFFS,    offsetof(struct arm_smccc_1_2_regs, a4));
0148   DEFINE(ARM_SMCCC_1_2_REGS_X6_OFFS,    offsetof(struct arm_smccc_1_2_regs, a6));
0149   DEFINE(ARM_SMCCC_1_2_REGS_X8_OFFS,    offsetof(struct arm_smccc_1_2_regs, a8));
0150   DEFINE(ARM_SMCCC_1_2_REGS_X10_OFFS,   offsetof(struct arm_smccc_1_2_regs, a10));
0151   DEFINE(ARM_SMCCC_1_2_REGS_X12_OFFS,   offsetof(struct arm_smccc_1_2_regs, a12));
0152   DEFINE(ARM_SMCCC_1_2_REGS_X14_OFFS,   offsetof(struct arm_smccc_1_2_regs, a14));
0153   DEFINE(ARM_SMCCC_1_2_REGS_X16_OFFS,   offsetof(struct arm_smccc_1_2_regs, a16));
0154   BLANK();
0155   DEFINE(HIBERN_PBE_ORIG,   offsetof(struct pbe, orig_address));
0156   DEFINE(HIBERN_PBE_ADDR,   offsetof(struct pbe, address));
0157   DEFINE(HIBERN_PBE_NEXT,   offsetof(struct pbe, next));
0158   DEFINE(ARM64_FTR_SYSVAL,  offsetof(struct arm64_ftr_reg, sys_val));
0159   BLANK();
0160 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
0161   DEFINE(TRAMP_VALIAS,      TRAMP_VALIAS);
0162 #endif
0163 #ifdef CONFIG_ARM_SDE_INTERFACE
0164   DEFINE(SDEI_EVENT_INTREGS,    offsetof(struct sdei_registered_event, interrupted_regs));
0165   DEFINE(SDEI_EVENT_PRIORITY,   offsetof(struct sdei_registered_event, priority));
0166 #endif
0167 #ifdef CONFIG_ARM64_PTR_AUTH
0168   DEFINE(PTRAUTH_USER_KEY_APIA,     offsetof(struct ptrauth_keys_user, apia));
0169 #ifdef CONFIG_ARM64_PTR_AUTH_KERNEL
0170   DEFINE(PTRAUTH_KERNEL_KEY_APIA,   offsetof(struct ptrauth_keys_kernel, apia));
0171 #endif
0172   BLANK();
0173 #endif
0174 #ifdef CONFIG_KEXEC_CORE
0175   DEFINE(KIMAGE_ARCH_DTB_MEM,       offsetof(struct kimage, arch.dtb_mem));
0176   DEFINE(KIMAGE_ARCH_EL2_VECTORS,   offsetof(struct kimage, arch.el2_vectors));
0177   DEFINE(KIMAGE_ARCH_ZERO_PAGE,     offsetof(struct kimage, arch.zero_page));
0178   DEFINE(KIMAGE_ARCH_PHYS_OFFSET,   offsetof(struct kimage, arch.phys_offset));
0179   DEFINE(KIMAGE_ARCH_TTBR1,     offsetof(struct kimage, arch.ttbr1));
0180   DEFINE(KIMAGE_HEAD,           offsetof(struct kimage, head));
0181   DEFINE(KIMAGE_START,          offsetof(struct kimage, start));
0182   BLANK();
0183 #endif
0184   return 0;
0185 }
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