1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
* Mapping of DWARF debug register numbers into register names.
*/
#include <stddef.h>
#include <errno.h> /* for EINVAL */
#include <string.h> /* for strcmp */
#include <dwarf-regs.h>
struct pt_regs_dwarfnum {
const char *name;
unsigned int dwarfnum;
};
#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
struct pt_regs_dwarfnum riscv_dwarf_regs_table[] = {
REG_DWARFNUM_NAME("%zero", 0),
REG_DWARFNUM_NAME("%ra", 1),
REG_DWARFNUM_NAME("%sp", 2),
REG_DWARFNUM_NAME("%gp", 3),
REG_DWARFNUM_NAME("%tp", 4),
REG_DWARFNUM_NAME("%t0", 5),
REG_DWARFNUM_NAME("%t1", 6),
REG_DWARFNUM_NAME("%t2", 7),
REG_DWARFNUM_NAME("%s0", 8),
REG_DWARFNUM_NAME("%s1", 9),
REG_DWARFNUM_NAME("%a0", 10),
REG_DWARFNUM_NAME("%a1", 11),
REG_DWARFNUM_NAME("%a2", 12),
REG_DWARFNUM_NAME("%a3", 13),
REG_DWARFNUM_NAME("%a4", 14),
REG_DWARFNUM_NAME("%a5", 15),
REG_DWARFNUM_NAME("%a6", 16),
REG_DWARFNUM_NAME("%a7", 17),
REG_DWARFNUM_NAME("%s2", 18),
REG_DWARFNUM_NAME("%s3", 19),
REG_DWARFNUM_NAME("%s4", 20),
REG_DWARFNUM_NAME("%s5", 21),
REG_DWARFNUM_NAME("%s6", 22),
REG_DWARFNUM_NAME("%s7", 23),
REG_DWARFNUM_NAME("%s8", 24),
REG_DWARFNUM_NAME("%s9", 25),
REG_DWARFNUM_NAME("%s10", 26),
REG_DWARFNUM_NAME("%s11", 27),
REG_DWARFNUM_NAME("%t3", 28),
REG_DWARFNUM_NAME("%t4", 29),
REG_DWARFNUM_NAME("%t5", 30),
REG_DWARFNUM_NAME("%t6", 31),
REG_DWARFNUM_END,
};
#define RISCV_MAX_REGS ((sizeof(riscv_dwarf_regs_table) / \
sizeof(riscv_dwarf_regs_table[0])) - 1)
const char *get_arch_regstr(unsigned int n)
{
return (n < RISCV_MAX_REGS) ? riscv_dwarf_regs_table[n].name : NULL;
}
int regs_query_register_offset(const char *name)
{
const struct pt_regs_dwarfnum *roff;
for (roff = riscv_dwarf_regs_table; roff->name; roff++)
if (!strcmp(roff->name, name))
return roff->dwarfnum;
return -EINVAL;
}
|
