1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright 2016 Chandan Kumar, IBM Corporation.
4 */
5
6#include <errno.h>
7#include <libunwind.h>
8#include <asm/perf_regs.h>
9#include "../../util/unwind.h"
10#include "../../util/debug.h"
11
12int libunwind__arch_reg_id(int regnum)
13{
14	switch (regnum) {
15	case UNW_PPC64_R0:
16		return PERF_REG_POWERPC_R0;
17	case UNW_PPC64_R1:
18		return PERF_REG_POWERPC_R1;
19	case UNW_PPC64_R2:
20		return PERF_REG_POWERPC_R2;
21	case UNW_PPC64_R3:
22		return PERF_REG_POWERPC_R3;
23	case UNW_PPC64_R4:
24		return PERF_REG_POWERPC_R4;
25	case UNW_PPC64_R5:
26		return PERF_REG_POWERPC_R5;
27	case UNW_PPC64_R6:
28		return PERF_REG_POWERPC_R6;
29	case UNW_PPC64_R7:
30		return PERF_REG_POWERPC_R7;
31	case UNW_PPC64_R8:
32		return PERF_REG_POWERPC_R8;
33	case UNW_PPC64_R9:
34		return PERF_REG_POWERPC_R9;
35	case UNW_PPC64_R10:
36		return PERF_REG_POWERPC_R10;
37	case UNW_PPC64_R11:
38		return PERF_REG_POWERPC_R11;
39	case UNW_PPC64_R12:
40		return PERF_REG_POWERPC_R12;
41	case UNW_PPC64_R13:
42		return PERF_REG_POWERPC_R13;
43	case UNW_PPC64_R14:
44		return PERF_REG_POWERPC_R14;
45	case UNW_PPC64_R15:
46		return PERF_REG_POWERPC_R15;
47	case UNW_PPC64_R16:
48		return PERF_REG_POWERPC_R16;
49	case UNW_PPC64_R17:
50		return PERF_REG_POWERPC_R17;
51	case UNW_PPC64_R18:
52		return PERF_REG_POWERPC_R18;
53	case UNW_PPC64_R19:
54		return PERF_REG_POWERPC_R19;
55	case UNW_PPC64_R20:
56		return PERF_REG_POWERPC_R20;
57	case UNW_PPC64_R21:
58		return PERF_REG_POWERPC_R21;
59	case UNW_PPC64_R22:
60		return PERF_REG_POWERPC_R22;
61	case UNW_PPC64_R23:
62		return PERF_REG_POWERPC_R23;
63	case UNW_PPC64_R24:
64		return PERF_REG_POWERPC_R24;
65	case UNW_PPC64_R25:
66		return PERF_REG_POWERPC_R25;
67	case UNW_PPC64_R26:
68		return PERF_REG_POWERPC_R26;
69	case UNW_PPC64_R27:
70		return PERF_REG_POWERPC_R27;
71	case UNW_PPC64_R28:
72		return PERF_REG_POWERPC_R28;
73	case UNW_PPC64_R29:
74		return PERF_REG_POWERPC_R29;
75	case UNW_PPC64_R30:
76		return PERF_REG_POWERPC_R30;
77	case UNW_PPC64_R31:
78		return PERF_REG_POWERPC_R31;
79	case UNW_PPC64_LR:
80		return PERF_REG_POWERPC_LINK;
81	case UNW_PPC64_CTR:
82		return PERF_REG_POWERPC_CTR;
83	case UNW_PPC64_XER:
84		return PERF_REG_POWERPC_XER;
85	case UNW_PPC64_NIP:
86		return PERF_REG_POWERPC_NIP;
87	default:
88		pr_err("unwind: invalid reg id %d\n", regnum);
89		return -EINVAL;
90	}
91	return -EINVAL;
92}
93