[PATCH v6 1/2] RISC-V: Support Zcmp push/pop instructions.

[Kito Cheng]

> +static bool
> +reglist_lookup (char **s, unsigned *reg_list)
> +{
> +  unsigned regno = 0;
> +  unsigned regnum = 0;
> +  char *reglist = strdup (*s);

char *token;

> +  char *regname[3];
> +
> +  if (reglist == NULL)
> +    goto next;
> +
> +  /* Use reglist to judge the reg name use.  */
> +  reglist = strtok (reglist, "}");

token = strtok (reglist, "}");

You need to keep the original pointer which points to the start of the
space you got, otherwise it will cause problems when you free that.


> +  for(reglist = strtok (reglist, ",");reglist;reglist = strtok(NULL, ",")){

for(token = strtok (token, ","); token ;token = strtok (NULL, ",")) {

> +    regname[regnum] = reglist;

regname[regnum] = token;