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
8 bool 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 }
40
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