text: // 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_ARM_MAX];
  
  #define REG(r) ({						\
  	Dwarf_Word val = 0;					\
  	perf_reg_value(&val, user_regs, PERF_REG_ARM_##r);	\
  	val;							\
  })
  
  	dwarf_regs[0]  = REG(R0);
  	dwarf_regs[1]  = REG(R1);
  	dwarf_regs[2]  = REG(R2);
  	dwarf_regs[3]  = REG(R3);
  	dwarf_regs[4]  = REG(R4);
  	dwarf_regs[5]  = REG(R5);
  	dwarf_regs[6]  = REG(R6);
  	dwarf_regs[7]  = REG(R7);
  	dwarf_regs[8]  = REG(R8);
  	dwarf_regs[9]  = REG(R9);
  	dwarf_regs[10] = REG(R10);
  	dwarf_regs[11] = REG(FP);
  	dwarf_regs[12] = REG(IP);
  	dwarf_regs[13] = REG(SP);
  	dwarf_regs[14] = REG(LR);
  	dwarf_regs[15] = REG(PC);
  
  	return dwfl_thread_state_registers(thread, 0, PERF_REG_ARM_MAX,
  					   dwarf_regs);
  }
  