ARM registers
arm register alias
4.19archarm64kernelAsm-offsets.c
DEFINE(S_X0, offsetof(struct pt_regs, regs[0])); DEFINE(S_X1, offsetof(struct pt_regs, regs[1])); DEFINE(S_X2, offsetof(struct pt_regs, regs[2])); DEFINE(S_X3, offsetof(struct pt_regs, regs[3])); DEFINE(S_X4, offsetof(struct pt_regs, regs[4])); DEFINE(S_X5, offsetof(struct pt_regs, regs[5])); DEFINE(S_X6, offsetof(struct pt_regs, regs[6])); DEFINE(S_X7, offsetof(struct pt_regs, regs[7])); DEFINE(S_X8, offsetof(struct pt_regs, regs[8])); DEFINE(S_X10, offsetof(struct pt_regs, regs[10])); DEFINE(S_X12, offsetof(struct pt_regs, regs[12])); DEFINE(S_X14, offsetof(struct pt_regs, regs[14])); DEFINE(S_X16, offsetof(struct pt_regs, regs[16])); DEFINE(S_X18, offsetof(struct pt_regs, regs[18])); DEFINE(S_X20, offsetof(struct pt_regs, regs[20])); DEFINE(S_X22, offsetof(struct pt_regs, regs[22])); DEFINE(S_X24, offsetof(struct pt_regs, regs[24])); DEFINE(S_X26, offsetof(struct pt_regs, regs[26])); DEFINE(S_X28, offsetof(struct pt_regs, regs[28])); DEFINE(S_LR, offsetof(struct pt_regs, regs[30])); DEFINE(S_SP, offsetof(struct pt_regs, sp)); #ifdef CONFIG_COMPAT DEFINE(S_COMPAT_SP, offsetof(struct pt_regs, compat_sp)); #endif DEFINE(S_PSTATE, offsetof(struct pt_regs, pstate)); DEFINE(S_PC, offsetof(struct pt_regs, pc));
arch/arm64/include/asm/ptrace.h
struct pt_regs { union { struct user_pt_regs user_regs; struct { u64 regs[31]; u64 sp; u64 pc; u64 pstate; }; }; u64 orig_x0; #ifdef __AARCH64EB__ u32 unused2; s32 syscallno; #else s32 syscallno; u32 unused2; #endif u64 sdei_ttbr1; /* Only valid when ARM64_HAS_IRQ_PRIO_MASKING is enabled. */ u64 pmr_save; u64 stackframe[2]; /* Only valid for some EL1 exceptions. */ u64 lockdep_hardirqs; u64 exit_rcu; };