1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2012 Regents of the University of California 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _ASM_RISCV_PTRACE_H 7*4882a593Smuzhiyun #define _ASM_RISCV_PTRACE_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <uapi/asm/ptrace.h> 10*4882a593Smuzhiyun #include <asm/csr.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct pt_regs { 15*4882a593Smuzhiyun unsigned long epc; 16*4882a593Smuzhiyun unsigned long ra; 17*4882a593Smuzhiyun unsigned long sp; 18*4882a593Smuzhiyun unsigned long gp; 19*4882a593Smuzhiyun unsigned long tp; 20*4882a593Smuzhiyun unsigned long t0; 21*4882a593Smuzhiyun unsigned long t1; 22*4882a593Smuzhiyun unsigned long t2; 23*4882a593Smuzhiyun unsigned long s0; 24*4882a593Smuzhiyun unsigned long s1; 25*4882a593Smuzhiyun unsigned long a0; 26*4882a593Smuzhiyun unsigned long a1; 27*4882a593Smuzhiyun unsigned long a2; 28*4882a593Smuzhiyun unsigned long a3; 29*4882a593Smuzhiyun unsigned long a4; 30*4882a593Smuzhiyun unsigned long a5; 31*4882a593Smuzhiyun unsigned long a6; 32*4882a593Smuzhiyun unsigned long a7; 33*4882a593Smuzhiyun unsigned long s2; 34*4882a593Smuzhiyun unsigned long s3; 35*4882a593Smuzhiyun unsigned long s4; 36*4882a593Smuzhiyun unsigned long s5; 37*4882a593Smuzhiyun unsigned long s6; 38*4882a593Smuzhiyun unsigned long s7; 39*4882a593Smuzhiyun unsigned long s8; 40*4882a593Smuzhiyun unsigned long s9; 41*4882a593Smuzhiyun unsigned long s10; 42*4882a593Smuzhiyun unsigned long s11; 43*4882a593Smuzhiyun unsigned long t3; 44*4882a593Smuzhiyun unsigned long t4; 45*4882a593Smuzhiyun unsigned long t5; 46*4882a593Smuzhiyun unsigned long t6; 47*4882a593Smuzhiyun /* Supervisor/Machine CSRs */ 48*4882a593Smuzhiyun unsigned long status; 49*4882a593Smuzhiyun unsigned long badaddr; 50*4882a593Smuzhiyun unsigned long cause; 51*4882a593Smuzhiyun /* a0 value before the syscall */ 52*4882a593Smuzhiyun unsigned long orig_a0; 53*4882a593Smuzhiyun }; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #ifdef CONFIG_64BIT 56*4882a593Smuzhiyun #define REG_FMT "%016lx" 57*4882a593Smuzhiyun #else 58*4882a593Smuzhiyun #define REG_FMT "%08lx" 59*4882a593Smuzhiyun #endif 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun #define user_mode(regs) (((regs)->status & SR_PP) == 0) 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun /* Helpers for working with the instruction pointer */ instruction_pointer(struct pt_regs * regs)65*4882a593Smuzhiyunstatic inline unsigned long instruction_pointer(struct pt_regs *regs) 66*4882a593Smuzhiyun { 67*4882a593Smuzhiyun return regs->epc; 68*4882a593Smuzhiyun } instruction_pointer_set(struct pt_regs * regs,unsigned long val)69*4882a593Smuzhiyunstatic inline void instruction_pointer_set(struct pt_regs *regs, 70*4882a593Smuzhiyun unsigned long val) 71*4882a593Smuzhiyun { 72*4882a593Smuzhiyun regs->epc = val; 73*4882a593Smuzhiyun } 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #define profile_pc(regs) instruction_pointer(regs) 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun /* Helpers for working with the user stack pointer */ user_stack_pointer(struct pt_regs * regs)78*4882a593Smuzhiyunstatic inline unsigned long user_stack_pointer(struct pt_regs *regs) 79*4882a593Smuzhiyun { 80*4882a593Smuzhiyun return regs->sp; 81*4882a593Smuzhiyun } user_stack_pointer_set(struct pt_regs * regs,unsigned long val)82*4882a593Smuzhiyunstatic inline void user_stack_pointer_set(struct pt_regs *regs, 83*4882a593Smuzhiyun unsigned long val) 84*4882a593Smuzhiyun { 85*4882a593Smuzhiyun regs->sp = val; 86*4882a593Smuzhiyun } 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun /* Helpers for working with the frame pointer */ frame_pointer(struct pt_regs * regs)89*4882a593Smuzhiyunstatic inline unsigned long frame_pointer(struct pt_regs *regs) 90*4882a593Smuzhiyun { 91*4882a593Smuzhiyun return regs->s0; 92*4882a593Smuzhiyun } frame_pointer_set(struct pt_regs * regs,unsigned long val)93*4882a593Smuzhiyunstatic inline void frame_pointer_set(struct pt_regs *regs, 94*4882a593Smuzhiyun unsigned long val) 95*4882a593Smuzhiyun { 96*4882a593Smuzhiyun regs->s0 = val; 97*4882a593Smuzhiyun } 98*4882a593Smuzhiyun regs_return_value(struct pt_regs * regs)99*4882a593Smuzhiyunstatic inline unsigned long regs_return_value(struct pt_regs *regs) 100*4882a593Smuzhiyun { 101*4882a593Smuzhiyun return regs->a0; 102*4882a593Smuzhiyun } 103*4882a593Smuzhiyun 104*4882a593Smuzhiyun #endif /* __ASSEMBLY__ */ 105*4882a593Smuzhiyun 106*4882a593Smuzhiyun #endif /* _ASM_RISCV_PTRACE_H */ 107