1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
3 // Mapping of DWARF debug register numbers into register names.
4 
5 #include <stddef.h>
6 #include <dwarf-regs.h>
7 
8 #if defined(__CSKYABIV2__)
9 #define CSKY_MAX_REGS 73
10 const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
11 	/* r0 ~ r8 */
12 	"%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3",
13 	/* r9 ~ r15 */
14 	"%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp",
15 	"%lr",
16 	/* r16 ~ r23 */
17 	"%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4",
18 	"%exregs5", "%exregs6", "%exregs7",
19 	/* r24 ~ r31 */
20 	"%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12",
21 	"%exregs13", "%exregs14", "%tls",
22 	"%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL,
23 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
24 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
25 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
26 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
27 	"%epc",
28 };
29 #else
30 #define CSKY_MAX_REGS 57
31 const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
32 	/* r0 ~ r8 */
33 	"%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1",
34 	/* r9 ~ r15 */
35 	"%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8",
36 	"%lr",
37 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
38 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
39 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
40 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
41 	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
42 	"%epc",
43 };
44 #endif
45 
get_arch_regstr(unsigned int n)46 const char *get_arch_regstr(unsigned int n)
47 {
48 	return (n < CSKY_MAX_REGS) ? csky_dwarf_regs_table[n] : NULL;
49 }
50