1 // SPDX-License-Identifier: GPL-2.0
2 #include <errno.h>
3 
4 #ifndef REMOTE_UNWIND_LIBUNWIND
5 #include <libunwind.h>
6 #include "perf_regs.h"
7 #include "../../util/unwind.h"
8 #endif
9 #include "../../util/debug.h"
10 
LIBUNWIND__ARCH_REG_ID(int regnum)11 int LIBUNWIND__ARCH_REG_ID(int regnum)
12 {
13 	switch (regnum) {
14 	case UNW_AARCH64_X0:
15 		return PERF_REG_ARM64_X0;
16 	case UNW_AARCH64_X1:
17 		return PERF_REG_ARM64_X1;
18 	case UNW_AARCH64_X2:
19 		return PERF_REG_ARM64_X2;
20 	case UNW_AARCH64_X3:
21 		return PERF_REG_ARM64_X3;
22 	case UNW_AARCH64_X4:
23 		return PERF_REG_ARM64_X4;
24 	case UNW_AARCH64_X5:
25 		return PERF_REG_ARM64_X5;
26 	case UNW_AARCH64_X6:
27 		return PERF_REG_ARM64_X6;
28 	case UNW_AARCH64_X7:
29 		return PERF_REG_ARM64_X7;
30 	case UNW_AARCH64_X8:
31 		return PERF_REG_ARM64_X8;
32 	case UNW_AARCH64_X9:
33 		return PERF_REG_ARM64_X9;
34 	case UNW_AARCH64_X10:
35 		return PERF_REG_ARM64_X10;
36 	case UNW_AARCH64_X11:
37 		return PERF_REG_ARM64_X11;
38 	case UNW_AARCH64_X12:
39 		return PERF_REG_ARM64_X12;
40 	case UNW_AARCH64_X13:
41 		return PERF_REG_ARM64_X13;
42 	case UNW_AARCH64_X14:
43 		return PERF_REG_ARM64_X14;
44 	case UNW_AARCH64_X15:
45 		return PERF_REG_ARM64_X15;
46 	case UNW_AARCH64_X16:
47 		return PERF_REG_ARM64_X16;
48 	case UNW_AARCH64_X17:
49 		return PERF_REG_ARM64_X17;
50 	case UNW_AARCH64_X18:
51 		return PERF_REG_ARM64_X18;
52 	case UNW_AARCH64_X19:
53 		return PERF_REG_ARM64_X19;
54 	case UNW_AARCH64_X20:
55 		return PERF_REG_ARM64_X20;
56 	case UNW_AARCH64_X21:
57 		return PERF_REG_ARM64_X21;
58 	case UNW_AARCH64_X22:
59 		return PERF_REG_ARM64_X22;
60 	case UNW_AARCH64_X23:
61 		return PERF_REG_ARM64_X23;
62 	case UNW_AARCH64_X24:
63 		return PERF_REG_ARM64_X24;
64 	case UNW_AARCH64_X25:
65 		return PERF_REG_ARM64_X25;
66 	case UNW_AARCH64_X26:
67 		return PERF_REG_ARM64_X26;
68 	case UNW_AARCH64_X27:
69 		return PERF_REG_ARM64_X27;
70 	case UNW_AARCH64_X28:
71 		return PERF_REG_ARM64_X28;
72 	case UNW_AARCH64_X29:
73 		return PERF_REG_ARM64_X29;
74 	case UNW_AARCH64_X30:
75 		return PERF_REG_ARM64_LR;
76 	case UNW_AARCH64_SP:
77 		return PERF_REG_ARM64_SP;
78 	case UNW_AARCH64_PC:
79 		return PERF_REG_ARM64_PC;
80 	default:
81 		pr_err("unwind: invalid reg id %d\n", regnum);
82 		return -EINVAL;
83 	}
84 
85 	return -EINVAL;
86 }
87