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