// SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. */ #include <elfutils/libdwfl.h> #include "../../util/unwind-libdw.h" #include "../../util/perf_regs.h" #include "../../util/sample.h" bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) { struct unwind_info *ui = arg; struct regs_dump *user_regs = &ui->sample->user_regs; Dwarf_Word dwarf_regs[32]; #define REG(r) ({ \ Dwarf_Word val = 0; \ perf_reg_value(&val, user_regs, PERF_REG_RISCV_##r); \ val; \ }) dwarf_regs[0] = 0; dwarf_regs[1] = REG(RA); dwarf_regs[2] = REG(SP); dwarf_regs[3] = REG(GP); dwarf_regs[4] = REG(TP); dwarf_regs[5] = REG(T0); dwarf_regs[6] = REG(T1); dwarf_regs[7] = REG(T2); dwarf_regs[8] = REG(S0); dwarf_regs[9] = REG(S1); dwarf_regs[10] = REG(A0); dwarf_regs[11] = REG(A1); dwarf_regs[12] = REG(A2); dwarf_regs[13] = REG(A3); dwarf_regs[14] = REG(A4); dwarf_regs[15] = REG(A5); dwarf_regs[16] = REG(A6); dwarf_regs[17] = REG(A7); dwarf_regs[18] = REG(S2); dwarf_regs[19] = REG(S3); dwarf_regs[20] = REG(S4); dwarf_regs[21] = REG(S5); dwarf_regs[22] = REG(S6); dwarf_regs[23] = REG(S7); dwarf_regs[24] = REG(S8); dwarf_regs[25] = REG(S9); dwarf_regs[26] = REG(S10); dwarf_regs[27] = REG(S11); dwarf_regs[28] = REG(T3); dwarf_regs[29] = REG(T4); dwarf_regs[30] = REG(T5); dwarf_regs[31] = REG(T6); dwfl_thread_state_register_pc(thread, REG(PC)); return dwfl_thread_state_registers(thread, 0, PERF_REG_RISCV_MAX, dwarf_regs); }