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1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Based on arch/arm/kernel/asm-offsets.c
4  *
5  * Copyright (C) 1995-2003 Russell King
6  *               2001-2002 Keith Owens
7  * Copyright (C) 2012 ARM Ltd.
8  */
9 
10 #include <linux/arm_sdei.h>
11 #include <linux/sched.h>
12 #include <linux/mm.h>
13 #include <linux/dma-mapping.h>
14 #include <linux/kvm_host.h>
15 #include <linux/preempt.h>
16 #include <linux/suspend.h>
17 #include <asm/cpufeature.h>
18 #include <asm/fixmap.h>
19 #include <asm/thread_info.h>
20 #include <asm/memory.h>
21 #include <asm/signal32.h>
22 #include <asm/smp_plat.h>
23 #include <asm/suspend.h>
24 #include <linux/kbuild.h>
25 #include <linux/arm-smccc.h>
26 
main(void)27 int main(void)
28 {
29   DEFINE(TSK_ACTIVE_MM,		offsetof(struct task_struct, active_mm));
30   BLANK();
31   DEFINE(TSK_TI_FLAGS,		offsetof(struct task_struct, thread_info.flags));
32   DEFINE(TSK_TI_PREEMPT,	offsetof(struct task_struct, thread_info.preempt_count));
33   DEFINE(TSK_TI_ADDR_LIMIT,	offsetof(struct task_struct, thread_info.addr_limit));
34 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
35   DEFINE(TSK_TI_TTBR0,		offsetof(struct task_struct, thread_info.ttbr0));
36 #endif
37 #ifdef CONFIG_SHADOW_CALL_STACK
38   DEFINE(TSK_TI_SCS_BASE,	offsetof(struct task_struct, thread_info.scs_base));
39   DEFINE(TSK_TI_SCS_SP,		offsetof(struct task_struct, thread_info.scs_sp));
40 #endif
41   DEFINE(TSK_STACK,		offsetof(struct task_struct, stack));
42 #ifdef CONFIG_STACKPROTECTOR
43   DEFINE(TSK_STACK_CANARY,	offsetof(struct task_struct, stack_canary));
44 #endif
45   BLANK();
46   DEFINE(THREAD_CPU_CONTEXT,	offsetof(struct task_struct, thread.cpu_context));
47 #ifdef CONFIG_ARM64_PTR_AUTH
48   DEFINE(THREAD_KEYS_USER,	offsetof(struct task_struct, thread.keys_user));
49   DEFINE(THREAD_KEYS_KERNEL,	offsetof(struct task_struct, thread.keys_kernel));
50 #endif
51   BLANK();
52   DEFINE(S_X0,			offsetof(struct pt_regs, regs[0]));
53   DEFINE(S_X2,			offsetof(struct pt_regs, regs[2]));
54   DEFINE(S_X4,			offsetof(struct pt_regs, regs[4]));
55   DEFINE(S_X6,			offsetof(struct pt_regs, regs[6]));
56   DEFINE(S_X8,			offsetof(struct pt_regs, regs[8]));
57   DEFINE(S_X10,			offsetof(struct pt_regs, regs[10]));
58   DEFINE(S_X12,			offsetof(struct pt_regs, regs[12]));
59   DEFINE(S_X14,			offsetof(struct pt_regs, regs[14]));
60   DEFINE(S_X16,			offsetof(struct pt_regs, regs[16]));
61   DEFINE(S_X18,			offsetof(struct pt_regs, regs[18]));
62   DEFINE(S_X20,			offsetof(struct pt_regs, regs[20]));
63   DEFINE(S_X22,			offsetof(struct pt_regs, regs[22]));
64   DEFINE(S_X24,			offsetof(struct pt_regs, regs[24]));
65   DEFINE(S_X26,			offsetof(struct pt_regs, regs[26]));
66   DEFINE(S_X28,			offsetof(struct pt_regs, regs[28]));
67   DEFINE(S_FP,			offsetof(struct pt_regs, regs[29]));
68   DEFINE(S_LR,			offsetof(struct pt_regs, regs[30]));
69   DEFINE(S_SP,			offsetof(struct pt_regs, sp));
70   DEFINE(S_PSTATE,		offsetof(struct pt_regs, pstate));
71   DEFINE(S_PC,			offsetof(struct pt_regs, pc));
72   DEFINE(S_SYSCALLNO,		offsetof(struct pt_regs, syscallno));
73   DEFINE(S_ORIG_ADDR_LIMIT,	offsetof(struct pt_regs, orig_addr_limit));
74   DEFINE(S_PMR_SAVE,		offsetof(struct pt_regs, pmr_save));
75   DEFINE(S_STACKFRAME,		offsetof(struct pt_regs, stackframe));
76   DEFINE(S_FRAME_SIZE,		sizeof(struct pt_regs));
77   BLANK();
78 #ifdef CONFIG_COMPAT
79   DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,		offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
80   DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,	offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
81   BLANK();
82 #endif
83   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
84   BLANK();
85   DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
86   DEFINE(VMA_VM_FLAGS,		offsetof(struct vm_area_struct, vm_flags));
87   BLANK();
88   DEFINE(VM_EXEC,	       	VM_EXEC);
89   BLANK();
90   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
91   BLANK();
92   DEFINE(DMA_TO_DEVICE,		DMA_TO_DEVICE);
93   DEFINE(DMA_FROM_DEVICE,	DMA_FROM_DEVICE);
94   BLANK();
95   DEFINE(PREEMPT_DISABLE_OFFSET, PREEMPT_DISABLE_OFFSET);
96   DEFINE(SOFTIRQ_SHIFT, SOFTIRQ_SHIFT);
97   DEFINE(IRQ_CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
98   BLANK();
99   DEFINE(CPU_BOOT_STACK,	offsetof(struct secondary_data, stack));
100   DEFINE(CPU_BOOT_TASK,		offsetof(struct secondary_data, task));
101   BLANK();
102 #ifdef CONFIG_KVM
103   DEFINE(VCPU_CONTEXT,		offsetof(struct kvm_vcpu, arch.ctxt));
104   DEFINE(VCPU_FAULT_DISR,	offsetof(struct kvm_vcpu, arch.fault.disr_el1));
105   DEFINE(VCPU_WORKAROUND_FLAGS,	offsetof(struct kvm_vcpu, arch.workaround_flags));
106   DEFINE(VCPU_HCR_EL2,		offsetof(struct kvm_vcpu, arch.hcr_el2));
107   DEFINE(CPU_USER_PT_REGS,	offsetof(struct kvm_cpu_context, regs));
108   DEFINE(CPU_APIAKEYLO_EL1,	offsetof(struct kvm_cpu_context, sys_regs[APIAKEYLO_EL1]));
109   DEFINE(CPU_APIBKEYLO_EL1,	offsetof(struct kvm_cpu_context, sys_regs[APIBKEYLO_EL1]));
110   DEFINE(CPU_APDAKEYLO_EL1,	offsetof(struct kvm_cpu_context, sys_regs[APDAKEYLO_EL1]));
111   DEFINE(CPU_APDBKEYLO_EL1,	offsetof(struct kvm_cpu_context, sys_regs[APDBKEYLO_EL1]));
112   DEFINE(CPU_APGAKEYLO_EL1,	offsetof(struct kvm_cpu_context, sys_regs[APGAKEYLO_EL1]));
113   DEFINE(HOST_CONTEXT_VCPU,	offsetof(struct kvm_cpu_context, __hyp_running_vcpu));
114   DEFINE(HOST_DATA_CONTEXT,	offsetof(struct kvm_host_data, host_ctxt));
115 #endif
116 #ifdef CONFIG_CPU_PM
117   DEFINE(CPU_CTX_SP,		offsetof(struct cpu_suspend_ctx, sp));
118   DEFINE(MPIDR_HASH_MASK,	offsetof(struct mpidr_hash, mask));
119   DEFINE(MPIDR_HASH_SHIFTS,	offsetof(struct mpidr_hash, shift_aff));
120   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,	offsetof(struct sleep_stack_data, system_regs));
121   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,	offsetof(struct sleep_stack_data, callee_saved_regs));
122 #endif
123   DEFINE(ARM_SMCCC_RES_X0_OFFS,		offsetof(struct arm_smccc_res, a0));
124   DEFINE(ARM_SMCCC_RES_X2_OFFS,		offsetof(struct arm_smccc_res, a2));
125   DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,	offsetof(struct arm_smccc_quirk, id));
126   DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,	offsetof(struct arm_smccc_quirk, state));
127   BLANK();
128   DEFINE(HIBERN_PBE_ORIG,	offsetof(struct pbe, orig_address));
129   DEFINE(HIBERN_PBE_ADDR,	offsetof(struct pbe, address));
130   DEFINE(HIBERN_PBE_NEXT,	offsetof(struct pbe, next));
131   DEFINE(ARM64_FTR_SYSVAL,	offsetof(struct arm64_ftr_reg, sys_val));
132   BLANK();
133 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
134   DEFINE(TRAMP_VALIAS,		TRAMP_VALIAS);
135 #endif
136 #ifdef CONFIG_ARM_SDE_INTERFACE
137   DEFINE(SDEI_EVENT_INTREGS,	offsetof(struct sdei_registered_event, interrupted_regs));
138   DEFINE(SDEI_EVENT_PRIORITY,	offsetof(struct sdei_registered_event, priority));
139 #endif
140 #ifdef CONFIG_ARM64_PTR_AUTH
141   DEFINE(PTRAUTH_USER_KEY_APIA,		offsetof(struct ptrauth_keys_user, apia));
142   DEFINE(PTRAUTH_USER_KEY_APIB,		offsetof(struct ptrauth_keys_user, apib));
143   DEFINE(PTRAUTH_USER_KEY_APDA,		offsetof(struct ptrauth_keys_user, apda));
144   DEFINE(PTRAUTH_USER_KEY_APDB,		offsetof(struct ptrauth_keys_user, apdb));
145   DEFINE(PTRAUTH_USER_KEY_APGA,		offsetof(struct ptrauth_keys_user, apga));
146   DEFINE(PTRAUTH_KERNEL_KEY_APIA,	offsetof(struct ptrauth_keys_kernel, apia));
147   BLANK();
148 #endif
149   return 0;
150 }
151