/* Read and handle the "BootstrapMethods" attribute.
Return 0 if OK.
*/
static int
jcf_parse_bootstrap_methods (JCF* jcf, int attribute_length ATTRIBUTE_UNUSED)
{
int i;
uint16 num_methods = JCF_readu2 (jcf);
jcf->bootstrap_methods.count = num_methods;
jcf->bootstrap_methods.methods
= (bootstrap_method *) ggc_alloc_atomic (num_methods
* sizeof (bootstrap_method));
#ifdef HANDLE_START_BOOTSTRAP_METHODS
HANDLE_START_BOOTSTRAP_METHODS (jcf, num_methods);
#endif
for (i = 0; i < num_methods; i++)
{
unsigned j;
bootstrap_method *m = &jcf->bootstrap_methods.methods[i];
m->method_ref = JCF_readu2 (jcf);
m->num_arguments = JCF_readu2 (jcf);
m->bootstrap_arguments
= (unsigned *) ggc_alloc_atomic (m->num_arguments
* sizeof (unsigned));
for (j = 0; j < m->num_arguments; j++)
m->bootstrap_arguments[j] = JCF_readu2 (jcf);
}
#ifdef HANDLE_END_BOOTSTRAP_METHODS
HANDLE_END_BOOTSTRAP_METHODS (num_methods);
#endif
return 0;
}
static const char *
remap_filename (file_prefix_map *maps, const char *filename)
{
file_prefix_map *map;
char *s;
const char *name;
size_t name_len;
for (map = maps; map; map = map->next)
if (filename_ncmp (filename, map->old_prefix, map->old_len) == 0)
break;
if (!map)
return filename;
name = filename + map->old_len;
name_len = strlen (name) + 1;
s = (char *) ggc_alloc_atomic (name_len + map->new_len);
memcpy (s, map->new_prefix, map->new_len);
memcpy (s + map->new_len, name, name_len);
return s;
}
/* Read and handle the constant pool.
Return 0 if OK.
Return -2 if a bad cross-reference (index of other constant) was seen.
*/
static int
jcf_parse_constant_pool (JCF* jcf)
{
int i, n;
JPOOL_SIZE (jcf) = (JCF_FILL (jcf, 2), JCF_readu2 (jcf));
jcf->cpool.tags = (uint8 *) ggc_alloc_atomic (JPOOL_SIZE (jcf));
jcf->cpool.data = ggc_alloc_cpool_entry (sizeof (jword) * JPOOL_SIZE (jcf));
jcf->cpool.tags[0] = 0;
#ifdef HANDLE_START_CONSTANT_POOL
HANDLE_START_CONSTANT_POOL (JPOOL_SIZE (jcf));
#endif
for (i = 1; i < (int) JPOOL_SIZE (jcf); i++)
{
int constant_kind;
/* Make sure at least 9 bytes are available. This is enough
for all fixed-sized constant pool entries (so we don't need many
more JCF_FILL calls below), but is is small enough that
we are guaranteed to not hit EOF (in a valid .class file). */
JCF_FILL (jcf, 9);
constant_kind = JCF_readu (jcf);
jcf->cpool.tags[i] = constant_kind;
switch (constant_kind)
{
case CONSTANT_String:
case CONSTANT_Class:
jcf->cpool.data[i].w = JCF_readu2 (jcf);
break;
case CONSTANT_Fieldref:
case CONSTANT_Methodref:
case CONSTANT_InterfaceMethodref:
case CONSTANT_NameAndType:
jcf->cpool.data[i].w = JCF_readu2 (jcf);
jcf->cpool.data[i].w |= JCF_readu2 (jcf) << 16;
break;
case CONSTANT_Integer:
case CONSTANT_Float:
jcf->cpool.data[i].w = JCF_readu4 (jcf);
break;
case CONSTANT_Long:
case CONSTANT_Double:
jcf->cpool.data[i].w = JCF_readu4 (jcf);
i++; /* These take up two spots in the constant pool */
jcf->cpool.tags[i] = 0;
jcf->cpool.data[i].w = JCF_readu4 (jcf);
break;
case CONSTANT_Utf8:
n = JCF_readu2 (jcf);
JCF_FILL (jcf, n);
#ifdef HANDLE_CONSTANT_Utf8
HANDLE_CONSTANT_Utf8(jcf, i, n);
#else
jcf->cpool.data[i].w = JCF_TELL(jcf) - 2;
JCF_SKIP (jcf, n);
#endif
break;
case CONSTANT_MethodHandle:
jcf->cpool.data[i].w = JCF_readu (jcf);
jcf->cpool.data[i].w |= JCF_readu2 (jcf) << 16;
break;
case CONSTANT_MethodType:
jcf->cpool.data[i].w = JCF_readu2 (jcf);
break;
case CONSTANT_InvokeDynamic:
jcf->cpool.data[i].w = JCF_readu2 (jcf);
jcf->cpool.data[i].w |= JCF_readu2 (jcf) << 16;
break;
default:
return i;
}
}
return 0;
}
static void *
stringpool_ggc_alloc (size_t x)
{
return ggc_alloc_atomic (x);
}