static int
dis_i386_handle_attach(dis_handle_t *dhp)
{
dis_handle_i386_t *dhx;
/*
* Validate architecture flags
*/
if (dhp->dh_flags & ~(DIS_X86_SIZE16 | DIS_X86_SIZE32 | DIS_X86_SIZE64 |
DIS_OCTAL | DIS_NOIMMSYM)) {
(void) dis_seterrno(E_DIS_INVALFLAG);
return (-1);
}
/*
* Create and initialize the internal structure
*/
if ((dhx = dis_zalloc(sizeof (dis_handle_i386_t))) == NULL) {
(void) dis_seterrno(E_DIS_NOMEM);
return (-1);
}
dhp->dh_arch_private = dhx;
/*
* Initialize x86-specific architecture structure
*/
if (dhp->dh_flags & DIS_X86_SIZE16)
dhx->dhx_mode = SIZE16;
else if (dhp->dh_flags & DIS_X86_SIZE64)
dhx->dhx_mode = SIZE64;
else
dhx->dhx_mode = SIZE32;
if (dhp->dh_flags & DIS_OCTAL)
dhx->dhx_dis.d86_flags = DIS_F_OCTAL;
dhx->dhx_dis.d86_sprintf_func = dis_snprintf;
dhx->dhx_dis.d86_get_byte = get_byte;
dhx->dhx_dis.d86_sym_lookup = do_lookup;
dhx->dhx_dis.d86_check_func = check_func;
dhx->dhx_dis.d86_data = dhp;
return (0);
}
dis_handle_t *
dis_handle_create(int flags, void *data, dis_lookup_f lookup_func,
dis_read_f read_func)
{
dis_handle_t *dhp;
dis_arch_t *arch = NULL;
int i;
/* Select an architecture based on flags */
for (i = 0; dis_archs[i] != NULL; i++) {
if (dis_archs[i]->da_supports_flags(flags)) {
arch = dis_archs[i];
break;
}
}
if (arch == NULL) {
(void) dis_seterrno(E_DIS_UNSUPARCH);
return (NULL);
}
if ((dhp = dis_zalloc(sizeof (dis_handle_t))) == NULL) {
(void) dis_seterrno(E_DIS_NOMEM);
return (NULL);
}
dhp->dh_arch = arch;
dhp->dh_lookup = lookup_func;
dhp->dh_read = read_func;
dhp->dh_flags = flags;
dhp->dh_data = data;
/*
* Allow the architecture-specific code to allocate
* its private data.
*/
if (arch->da_handle_attach(dhp) != 0) {
dis_free(dhp, sizeof (dis_handle_t));
/* dis errno already set */
return (NULL);
}
return (dhp);
}
