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 | |