arch/sh/kernel/ptrace.c

   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  */
  10 int 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  */
  26 const 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 }