1// SPDX-License-Identifier: GPL-2.0
 2#include <elfutils/libdwfl.h>
 3#include "perf_regs.h"
 4#include "../../../util/unwind-libdw.h"
 5#include "../../../util/perf_regs.h"
 6#include "../../../util/sample.h"
 7
 8bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
 9{
10	struct unwind_info *ui = arg;
11	struct regs_dump *user_regs = &ui->sample->user_regs;
12	Dwarf_Word dwarf_regs[PERF_REG_ARM_MAX];
13
14#define REG(r) ({						\
15	Dwarf_Word val = 0;					\
16	perf_reg_value(&val, user_regs, PERF_REG_ARM_##r);	\
17	val;							\
18})
19
20	dwarf_regs[0]  = REG(R0);
21	dwarf_regs[1]  = REG(R1);
22	dwarf_regs[2]  = REG(R2);
23	dwarf_regs[3]  = REG(R3);
24	dwarf_regs[4]  = REG(R4);
25	dwarf_regs[5]  = REG(R5);
26	dwarf_regs[6]  = REG(R6);
27	dwarf_regs[7]  = REG(R7);
28	dwarf_regs[8]  = REG(R8);
29	dwarf_regs[9]  = REG(R9);
30	dwarf_regs[10] = REG(R10);
31	dwarf_regs[11] = REG(FP);
32	dwarf_regs[12] = REG(IP);
33	dwarf_regs[13] = REG(SP);
34	dwarf_regs[14] = REG(LR);
35	dwarf_regs[15] = REG(PC);
36
37	return dwfl_thread_state_registers(thread, 0, PERF_REG_ARM_MAX,
38					   dwarf_regs);
39}