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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
eaaaeef3 PM |
2 | #include <linux/ptrace.h> |
3 | ||
4 | /** | |
5 | * regs_query_register_offset() - query register offset from its name | |
6 | * @name: the name of a register | |
7 | * | |
8 | * regs_query_register_offset() returns the offset of a register in struct | |
9 | * pt_regs from its name. If the name is invalid, this returns -EINVAL; | |
10 | */ | |
11 | int regs_query_register_offset(const char *name) | |
12 | { | |
13 | const struct pt_regs_offset *roff; | |
14 | for (roff = regoffset_table; roff->name != NULL; roff++) | |
15 | if (!strcmp(roff->name, name)) | |
16 | return roff->offset; | |
17 | return -EINVAL; | |
18 | } | |
19 | ||
20 | /** | |
21 | * regs_query_register_name() - query register name from its offset | |
22 | * @offset: the offset of a register in struct pt_regs. | |
23 | * | |
24 | * regs_query_register_name() returns the name of a register from its | |
25 | * offset in struct pt_regs. If the @offset is invalid, this returns NULL; | |
26 | */ | |
27 | const char *regs_query_register_name(unsigned int offset) | |
28 | { | |
29 | const struct pt_regs_offset *roff; | |
30 | for (roff = regoffset_table; roff->name != NULL; roff++) | |
31 | if (roff->offset == offset) | |
32 | return roff->name; | |
33 | return NULL; | |
34 | } |