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#define CSKY_ABIV2_MAX_REGS 73
 9const char *csky_dwarf_regs_table_abiv2[CSKY_ABIV2_MAX_REGS] = {
10	/* r0 ~ r8 */
11	"%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3",
12	/* r9 ~ r15 */
13	"%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp",
14	"%lr",
15	/* r16 ~ r23 */
16	"%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4",
17	"%exregs5", "%exregs6", "%exregs7",
18	/* r24 ~ r31 */
19	"%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12",
20	"%exregs13", "%exregs14", "%tls",
21	"%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL,
22	NULL, NULL, NULL, NULL, NULL, NULL, 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	"%epc",
27};
28
29#define CSKY_ABIV1_MAX_REGS 57
30const char *csky_dwarf_regs_table_abiv1[CSKY_ABIV1_MAX_REGS] = {
31	/* r0 ~ r8 */
32	"%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1",
33	/* r9 ~ r15 */
34	"%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8",
35	"%lr",
36	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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	"%epc",
42};
43
44const char *get_csky_regstr(unsigned int n, unsigned int flags)
45{
46	if (flags & EF_CSKY_ABIV2)
47		return (n < CSKY_ABIV2_MAX_REGS) ? csky_dwarf_regs_table_abiv2[n] : NULL;
48
49	return (n < CSKY_ABIV1_MAX_REGS) ? csky_dwarf_regs_table_abiv1[n] : NULL;
50}