linux/arch/sh/kernel/ptrace.c
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   1// SPDX-License-Identifier: GPL-2.0
   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 */
  11int 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 */
  27const 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}
  35