xref: /OK3568_Linux_fs/kernel/tools/perf/arch/x86/util/unwind-libunwind.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun 
3*4882a593Smuzhiyun #include <errno.h>
4*4882a593Smuzhiyun #include "../../util/debug.h"
5*4882a593Smuzhiyun #ifndef REMOTE_UNWIND_LIBUNWIND
6*4882a593Smuzhiyun #include <libunwind.h>
7*4882a593Smuzhiyun #include "perf_regs.h"
8*4882a593Smuzhiyun #include "../../util/unwind.h"
9*4882a593Smuzhiyun #endif
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun #ifdef HAVE_ARCH_X86_64_SUPPORT
LIBUNWIND__ARCH_REG_ID(int regnum)12*4882a593Smuzhiyun int LIBUNWIND__ARCH_REG_ID(int regnum)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	int id;
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun 	switch (regnum) {
17*4882a593Smuzhiyun 	case UNW_X86_64_RAX:
18*4882a593Smuzhiyun 		id = PERF_REG_X86_AX;
19*4882a593Smuzhiyun 		break;
20*4882a593Smuzhiyun 	case UNW_X86_64_RDX:
21*4882a593Smuzhiyun 		id = PERF_REG_X86_DX;
22*4882a593Smuzhiyun 		break;
23*4882a593Smuzhiyun 	case UNW_X86_64_RCX:
24*4882a593Smuzhiyun 		id = PERF_REG_X86_CX;
25*4882a593Smuzhiyun 		break;
26*4882a593Smuzhiyun 	case UNW_X86_64_RBX:
27*4882a593Smuzhiyun 		id = PERF_REG_X86_BX;
28*4882a593Smuzhiyun 		break;
29*4882a593Smuzhiyun 	case UNW_X86_64_RSI:
30*4882a593Smuzhiyun 		id = PERF_REG_X86_SI;
31*4882a593Smuzhiyun 		break;
32*4882a593Smuzhiyun 	case UNW_X86_64_RDI:
33*4882a593Smuzhiyun 		id = PERF_REG_X86_DI;
34*4882a593Smuzhiyun 		break;
35*4882a593Smuzhiyun 	case UNW_X86_64_RBP:
36*4882a593Smuzhiyun 		id = PERF_REG_X86_BP;
37*4882a593Smuzhiyun 		break;
38*4882a593Smuzhiyun 	case UNW_X86_64_RSP:
39*4882a593Smuzhiyun 		id = PERF_REG_X86_SP;
40*4882a593Smuzhiyun 		break;
41*4882a593Smuzhiyun 	case UNW_X86_64_R8:
42*4882a593Smuzhiyun 		id = PERF_REG_X86_R8;
43*4882a593Smuzhiyun 		break;
44*4882a593Smuzhiyun 	case UNW_X86_64_R9:
45*4882a593Smuzhiyun 		id = PERF_REG_X86_R9;
46*4882a593Smuzhiyun 		break;
47*4882a593Smuzhiyun 	case UNW_X86_64_R10:
48*4882a593Smuzhiyun 		id = PERF_REG_X86_R10;
49*4882a593Smuzhiyun 		break;
50*4882a593Smuzhiyun 	case UNW_X86_64_R11:
51*4882a593Smuzhiyun 		id = PERF_REG_X86_R11;
52*4882a593Smuzhiyun 		break;
53*4882a593Smuzhiyun 	case UNW_X86_64_R12:
54*4882a593Smuzhiyun 		id = PERF_REG_X86_R12;
55*4882a593Smuzhiyun 		break;
56*4882a593Smuzhiyun 	case UNW_X86_64_R13:
57*4882a593Smuzhiyun 		id = PERF_REG_X86_R13;
58*4882a593Smuzhiyun 		break;
59*4882a593Smuzhiyun 	case UNW_X86_64_R14:
60*4882a593Smuzhiyun 		id = PERF_REG_X86_R14;
61*4882a593Smuzhiyun 		break;
62*4882a593Smuzhiyun 	case UNW_X86_64_R15:
63*4882a593Smuzhiyun 		id = PERF_REG_X86_R15;
64*4882a593Smuzhiyun 		break;
65*4882a593Smuzhiyun 	case UNW_X86_64_RIP:
66*4882a593Smuzhiyun 		id = PERF_REG_X86_IP;
67*4882a593Smuzhiyun 		break;
68*4882a593Smuzhiyun 	default:
69*4882a593Smuzhiyun 		pr_err("unwind: invalid reg id %d\n", regnum);
70*4882a593Smuzhiyun 		return -EINVAL;
71*4882a593Smuzhiyun 	}
72*4882a593Smuzhiyun 
73*4882a593Smuzhiyun 	return id;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun #else
LIBUNWIND__ARCH_REG_ID(int regnum)76*4882a593Smuzhiyun int LIBUNWIND__ARCH_REG_ID(int regnum)
77*4882a593Smuzhiyun {
78*4882a593Smuzhiyun 	int id;
79*4882a593Smuzhiyun 
80*4882a593Smuzhiyun 	switch (regnum) {
81*4882a593Smuzhiyun 	case UNW_X86_EAX:
82*4882a593Smuzhiyun 		id = PERF_REG_X86_AX;
83*4882a593Smuzhiyun 		break;
84*4882a593Smuzhiyun 	case UNW_X86_EDX:
85*4882a593Smuzhiyun 		id = PERF_REG_X86_DX;
86*4882a593Smuzhiyun 		break;
87*4882a593Smuzhiyun 	case UNW_X86_ECX:
88*4882a593Smuzhiyun 		id = PERF_REG_X86_CX;
89*4882a593Smuzhiyun 		break;
90*4882a593Smuzhiyun 	case UNW_X86_EBX:
91*4882a593Smuzhiyun 		id = PERF_REG_X86_BX;
92*4882a593Smuzhiyun 		break;
93*4882a593Smuzhiyun 	case UNW_X86_ESI:
94*4882a593Smuzhiyun 		id = PERF_REG_X86_SI;
95*4882a593Smuzhiyun 		break;
96*4882a593Smuzhiyun 	case UNW_X86_EDI:
97*4882a593Smuzhiyun 		id = PERF_REG_X86_DI;
98*4882a593Smuzhiyun 		break;
99*4882a593Smuzhiyun 	case UNW_X86_EBP:
100*4882a593Smuzhiyun 		id = PERF_REG_X86_BP;
101*4882a593Smuzhiyun 		break;
102*4882a593Smuzhiyun 	case UNW_X86_ESP:
103*4882a593Smuzhiyun 		id = PERF_REG_X86_SP;
104*4882a593Smuzhiyun 		break;
105*4882a593Smuzhiyun 	case UNW_X86_EIP:
106*4882a593Smuzhiyun 		id = PERF_REG_X86_IP;
107*4882a593Smuzhiyun 		break;
108*4882a593Smuzhiyun 	default:
109*4882a593Smuzhiyun 		pr_err("unwind: invalid reg id %d\n", regnum);
110*4882a593Smuzhiyun 		return -EINVAL;
111*4882a593Smuzhiyun 	}
112*4882a593Smuzhiyun 
113*4882a593Smuzhiyun 	return id;
114*4882a593Smuzhiyun }
115*4882a593Smuzhiyun #endif /* HAVE_ARCH_X86_64_SUPPORT */
116