1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2020-2023 Loongson Technology Corporation Limited */
3
4 #include <elfutils/libdwfl.h>
5 #include "perf_regs.h"
6 #include "../../util/unwind-libdw.h"
7 #include "../../util/perf_regs.h"
8 #include "../../util/sample.h"
9
10 bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
11 {
12 struct unwind_info *ui = arg;
13 struct regs_dump *user_regs = &ui->sample->user_regs;
14 Dwarf_Word dwarf_regs[PERF_REG_LOONGARCH_MAX];
15
16 #define REG(r) ({ \
17 Dwarf_Word val = 0; \
18 perf_reg_value(&val, user_regs, PERF_REG_LOONGARCH_##r); \
19 val; \
20 })
21
22 dwarf_regs[0] = 0;
23 dwarf_regs[1] = REG(R1);
24 dwarf_regs[2] = REG(R2);
25 dwarf_regs[3] = REG(R3);
26 dwarf_regs[4] = REG(R4);
27 dwarf_regs[5] = REG(R5);
28 dwarf_regs[6] = REG(R6);
29 dwarf_regs[7] = REG(R7);
30 dwarf_regs[8] = REG(R8);
31 dwarf_regs[9] = REG(R9);
32 dwarf_regs[10] = REG(R10);
33 dwarf_regs[11] = REG(R11);
34 dwarf_regs[12] = REG(R12);
35 dwarf_regs[13] = REG(R13);
36 dwarf_regs[14] = REG(R14);
37 dwarf_regs[15] = REG(R15);
38 dwarf_regs[16] = REG(R16);
39 dwarf_regs[17] = REG(R17);
40 dwarf_regs[18] = REG(R18);
41 dwarf_regs[19] = REG(R19);
42 dwarf_regs[20] = REG(R20);
43 dwarf_regs[21] = REG(R21);
44 dwarf_regs[22] = REG(R22);
45 dwarf_regs[23] = REG(R23);
46 dwarf_regs[24] = REG(R24);
47 dwarf_regs[25] = REG(R25);
48 dwarf_regs[26] = REG(R26);
49 dwarf_regs[27] = REG(R27);
50 dwarf_regs[28] = REG(R28);
51 dwarf_regs[29] = REG(R29);
52 dwarf_regs[30] = REG(R30);
53 dwarf_regs[31] = REG(R31);
54 dwfl_thread_state_register_pc(thread, REG(PC));
55
56 return dwfl_thread_state_registers(thread, 0, PERF_REG_LOONGARCH_MAX, dwarf_regs);
57 }
58
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.