// SPDX-License-Identifier: GPL-2.0 #include <elfutils/libdwfl.h> #include "../../util/unwind-libdw.h" #include "../../util/perf_regs.h" #include "../../util/event.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[PERF_REG_ARM64_MAX], dwarf_pc; #define REG(r) ({ \ Dwarf_Word val = 0; \ perf_reg_value(&val, user_regs, PERF_REG_ARM64_##r); \ val; \ }) dwarf_regs[0] = REG(X0); dwarf_regs[1] = REG(X1); dwarf_regs[2] = REG(X2); dwarf_regs[3] = REG(X3); dwarf_regs[4] = REG(X4); dwarf_regs[5] = REG(X5); dwarf_regs[6] = REG(X6); dwarf_regs[7] = REG(X7); dwarf_regs[8] = REG(X8); dwarf_regs[9] = REG(X9); dwarf_regs[10] = REG(X10); dwarf_regs[11] = REG(X11); dwarf_regs[12] = REG(X12); dwarf_regs[13] = REG(X13); dwarf_regs[14] = REG(X14); dwarf_regs[15] = REG(X15); dwarf_regs[16] = REG(X16); dwarf_regs[17] = REG(X17); dwarf_regs[18] = REG(X18); dwarf_regs[19] = REG(X19); dwarf_regs[20] = REG(X20); dwarf_regs[21] = REG(X21); dwarf_regs[22] = REG(X22); dwarf_regs[23] = REG(X23); dwarf_regs[24] = REG(X24); dwarf_regs[25] = REG(X25); dwarf_regs[26] = REG(X26); dwarf_regs[27] = REG(X27); dwarf_regs[28] = REG(X28); dwarf_regs[29] = REG(X29); dwarf_regs[30] = REG(LR); dwarf_regs[31] = REG(SP); if (!dwfl_thread_state_registers(thread, 0, PERF_REG_ARM64_MAX, dwarf_regs)) return false; dwarf_pc = REG(PC); dwfl_thread_state_register_pc(thread, dwarf_pc); return true; }