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}
51

source code of linux/tools/perf/util/dwarf-regs-csky.c