1// SPDX-License-Identifier: GPL-2.0 2// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. 3 4#include <elfutils/libdwfl.h> 5#include "../../util/unwind-libdw.h" 6#include "../../util/perf_regs.h" 7#include "../../util/event.h" 8 9bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) 10{ 11 struct unwind_info *ui = arg; 12 struct regs_dump *user_regs = &ui->sample->user_regs; 13 Dwarf_Word dwarf_regs[PERF_REG_CSKY_MAX]; 14 15#define REG(r) ({ \ 16 Dwarf_Word val = 0; \ 17 perf_reg_value(&val, user_regs, PERF_REG_CSKY_##r); \ 18 val; \ 19}) 20 21#if defined(__CSKYABIV2__) 22 dwarf_regs[0] = REG(A0); 23 dwarf_regs[1] = REG(A1); 24 dwarf_regs[2] = REG(A2); 25 dwarf_regs[3] = REG(A3); 26 dwarf_regs[4] = REG(REGS0); 27 dwarf_regs[5] = REG(REGS1); 28 dwarf_regs[6] = REG(REGS2); 29 dwarf_regs[7] = REG(REGS3); 30 dwarf_regs[8] = REG(REGS4); 31 dwarf_regs[9] = REG(REGS5); 32 dwarf_regs[10] = REG(REGS6); 33 dwarf_regs[11] = REG(REGS7); 34 dwarf_regs[12] = REG(REGS8); 35 dwarf_regs[13] = REG(REGS9); 36 dwarf_regs[14] = REG(SP); 37 dwarf_regs[15] = REG(LR); 38 dwarf_regs[16] = REG(EXREGS0); 39 dwarf_regs[17] = REG(EXREGS1); 40 dwarf_regs[18] = REG(EXREGS2); 41 dwarf_regs[19] = REG(EXREGS3); 42 dwarf_regs[20] = REG(EXREGS4); 43 dwarf_regs[21] = REG(EXREGS5); 44 dwarf_regs[22] = REG(EXREGS6); 45 dwarf_regs[23] = REG(EXREGS7); 46 dwarf_regs[24] = REG(EXREGS8); 47 dwarf_regs[25] = REG(EXREGS9); 48 dwarf_regs[26] = REG(EXREGS10); 49 dwarf_regs[27] = REG(EXREGS11); 50 dwarf_regs[28] = REG(EXREGS12); 51 dwarf_regs[29] = REG(EXREGS13); 52 dwarf_regs[30] = REG(EXREGS14); 53 dwarf_regs[31] = REG(TLS); 54 dwarf_regs[32] = REG(PC); 55#else 56 dwarf_regs[0] = REG(SP); 57 dwarf_regs[1] = REG(REGS9); 58 dwarf_regs[2] = REG(A0); 59 dwarf_regs[3] = REG(A1); 60 dwarf_regs[4] = REG(A2); 61 dwarf_regs[5] = REG(A3); 62 dwarf_regs[6] = REG(REGS0); 63 dwarf_regs[7] = REG(REGS1); 64 dwarf_regs[8] = REG(REGS2); 65 dwarf_regs[9] = REG(REGS3); 66 dwarf_regs[10] = REG(REGS4); 67 dwarf_regs[11] = REG(REGS5); 68 dwarf_regs[12] = REG(REGS6); 69 dwarf_regs[13] = REG(REGS7); 70 dwarf_regs[14] = REG(REGS8); 71 dwarf_regs[15] = REG(LR); 72#endif 73 dwfl_thread_state_register_pc(thread, REG(PC)); 74 75 return dwfl_thread_state_registers(thread, 0, PERF_REG_CSKY_MAX, 76 dwarf_regs); 77} 78