/* Basic data types for Objective C.
- Copyright (C) 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2002, 2004, 2005, 2006, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Ovidiu Predescu.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
-/* As a special exception, if you link this library with files
- compiled with GCC to produce an executable, this does not cause
- the resulting executable to be covered by the GNU General Public License.
- This exception does not however invalidate any other reasons why
- the executable file might be covered by the GNU General Public License. */
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
-#include "../tconfig.h"
-#include "objc.h"
-#include "encoding.h"
+#include "objc-private/common.h"
+#include "objc/objc.h"
+#if OBJC_WITH_GC
+
+#include "tconfig.h"
#include <assert.h>
+#include <ctype.h> /* For isdigit. */
#include <string.h>
-
-#if OBJC_WITH_GC
+#include <stdlib.h>
+#include "objc/runtime.h"
+#include "objc-private/module-abi-8.h"
#include <gc.h>
+#include <limits.h>
/* gc_typed.h uses the following but doesn't declare them */
typedef GC_word word;
typedef GC_signed_word signed_word;
-
-#if BITS_PER_WORD == 32
-# define LOGWL 5
-# define modWORDSZ(n) ((n) & 0x1f) /* n mod size of word */
-#endif
-
-#if BITS_PER_WORD == 64
-# define LOGWL 6
-# define modWORDSZ(n) ((n) & 0x3f) /* n mod size of word */
-#endif
-
-#define divWORDSZ(n) ((n) >> LOGWL) /* divide n by size of word */
+#define BITS_PER_WORD (CHAR_BIT * sizeof (word))
#include <gc_typed.h>
The offset is incremented with the size of the type. */
#define ROUND(V, A) \
- ({ typeof(V) __v=(V); typeof(A) __a=(A); \
- __a*((__v+__a-1)/__a); })
+ ({ typeof (V) __v = (V); typeof (A) __a = (A); \
+ __a * ((__v+__a - 1)/__a); })
#define SET_BIT_FOR_OFFSET(mask, offset) \
- GC_set_bit(mask, offset / sizeof (void*))
+ GC_set_bit (mask, offset / sizeof (void *))
/* Some prototypes */
static void
static void
__objc_gc_setup_array (GC_bitmap mask, const char *type, int offset)
{
- int i, len = atoi(type + 1);
+ int i, len = atoi (type + 1);
- while (isdigit(*++type))
+ while (isdigit (*++type))
/* do nothing */; /* skip the size of the array */
switch (*type) {
case _C_PTR:
case _C_CHARPTR:
case _C_ATOM:
- if (!gc_invisible)
- SET_BIT_FOR_OFFSET(mask, position);
+ if (! gc_invisible)
+ SET_BIT_FOR_OFFSET (mask, position);
break;
case _C_ARY_B:
size = objc_sizeof_type (type);
align = objc_alignof_type (type);
- offset = ROUND(offset, align);
- for (i = 0; i < size; i += sizeof (void*))
+ offset = ROUND (offset, align);
+ for (i = 0; i < size; i += sizeof (void *))
{
- SET_BIT_FOR_OFFSET(mask, offset);
- offset += sizeof (void*);
+ SET_BIT_FOR_OFFSET (mask, offset);
+ offset += sizeof (void *);
}
}
case _C_SEL:
case _C_PTR:
case _C_CHARPTR:
- if (!gc_invisible)
- SET_BIT_FOR_OFFSET(mask, offset);
+ if (! gc_invisible)
+ SET_BIT_FOR_OFFSET (mask, offset);
break;
case _C_ARY_B:
int *current)
{
int i, ivar_count;
- struct objc_ivar_list* ivars;
+ struct objc_ivar_list *ivars;
- if (!class)
+ if (! class)
{
strcat (*type, "{");
- *current++;
+ (*current)++;
return;
}
__objc_class_structure_encoding (class->super_class, type, size, current);
ivars = class->ivars;
- if (!ivars)
+ if (! ivars)
return;
ivar_count = ivars->ivar_count;
{
/* Increase the size of the encoding string so that it
contains this ivar's type. */
- *size = ROUND(*current + len + 1, 10);
+ *size = ROUND (*current + len + 1, 10);
*type = objc_realloc (*type, *size);
}
strcat (*type + *current, ivar_type);
int type_size = 10, current;
char *class_structure_type;
- if (!CLS_ISCLASS(class))
+ if (! CLS_ISCLASS (class))
return;
/* We have to create a mask in which each bit counts for a pointer member.
/* The number of bits in the mask is the size of an instance in bytes divided
by the size of a pointer. */
- bits_no = (ROUND(class_get_instance_size (class), sizeof(void*))
- / sizeof (void*));
- size = ROUND(bits_no, BITS_PER_WORD) / BITS_PER_WORD;
+ bits_no = (ROUND (class_getInstanceSize (class), sizeof (void *))
+ / sizeof (void *));
+ size = ROUND (bits_no, BITS_PER_WORD) / BITS_PER_WORD;
mask = objc_atomic_malloc (size * sizeof (int));
memset (mask, 0, size * sizeof (int));
if (current + 1 == type_size)
class_structure_type = objc_realloc (class_structure_type, ++type_size);
strcat (class_structure_type + current, "}");
-// printf ("type description for '%s' is %s\n", class->name, class_structure_type);
+#ifdef DEBUG
+ printf ("type description for '%s' is %s\n", class->name, class_structure_type);
+#endif
__objc_gc_type_description_from_type (mask, class_structure_type);
objc_free (class_structure_type);
-#define DEBUG 1
#ifdef DEBUG
printf (" mask for '%s', type '%s' (bits %d, mask size %d) is:",
class_structure_type, class->name, bits_no, size);
puts ("");
#endif
- class->gc_object_type = (void*)GC_make_descriptor (mask, bits_no);
+ class->gc_object_type = (void *) GC_make_descriptor (mask, bits_no);
}
This operation only makes sense on instance variables that are
pointers. */
void
-class_ivar_set_gcinvisible (Class class, const char* ivarname,
+class_ivar_set_gcinvisible (Class class, const char *ivarname,
BOOL gc_invisible)
{
int i, ivar_count;
- struct objc_ivar_list* ivars;
+ struct objc_ivar_list *ivars;
- if (!class || !ivarname)
+ if (! class || ! ivarname)
return;
ivars = class->ivars;
- if (!ivars)
+ if (! ivars)
return;
ivar_count = ivars->ivar_count;
struct objc_ivar *ivar = &(ivars->ivar_list[i]);
const char *type;
- if (!ivar->ivar_name || strcmp (ivar->ivar_name, ivarname))
+ if (! ivar->ivar_name || strcmp (ivar->ivar_name, ivarname))
continue;
assert (ivar->ivar_type);
if (*type == _C_GCINVISIBLE)
{
char *new_type;
+ size_t len;
- if (gc_invisible || !__objc_ivar_pointer (type))
+ if (gc_invisible || ! __objc_ivar_pointer (type))
return; /* The type of the variable already matches the
requested gc_invisible type */
- /* The variable is gc_invisible and we have to reverse it */
- new_type = objc_atomic_malloc (strlen (ivar->ivar_type));
- strncpy (new_type, ivar->ivar_type,
- (size_t)(type - ivar->ivar_type));
+ /* The variable is gc_invisible so we make it gc visible. */
+ new_type = objc_atomic_malloc (strlen(ivar->ivar_type));
+ len = (type - ivar->ivar_type);
+ memcpy (new_type, ivar->ivar_type, len);
+ new_type[len] = 0;
strcat (new_type, type + 1);
ivar->ivar_type = new_type;
}
else
{
char *new_type;
+ size_t len;
- if (!gc_invisible || !__objc_ivar_pointer (type))
+ if (! gc_invisible || ! __objc_ivar_pointer (type))
return; /* The type of the variable already matches the
requested gc_invisible type */
- /* The variable is gc visible and we have to make it gc_invisible */
- new_type = objc_malloc (strlen (ivar->ivar_type) + 2);
- strncpy (new_type, ivar->ivar_type,
- (size_t)(type - ivar->ivar_type));
- strcat (new_type, "!");
- strcat (new_type, type);
+ /* The variable is gc visible so we make it gc_invisible. */
+ new_type = objc_malloc (strlen(ivar->ivar_type) + 2);
+
+ /* Copy the variable name. */
+ len = (type - ivar->ivar_type);
+ memcpy (new_type, ivar->ivar_type, len);
+ /* Add '!'. */
+ new_type[len++] = _C_GCINVISIBLE;
+ /* Copy the original types. */
+ strcpy (new_type + len, type);
+
ivar->ivar_type = new_type;
}
#else /* !OBJC_WITH_GC */
void
-__objc_generate_gc_type_description (Class class)
+__objc_generate_gc_type_description (Class class __attribute__ ((__unused__)))
{
}
-void class_ivar_set_gcinvisible (Class class,
- const char* ivarname,
- BOOL gc_invisible)
+void class_ivar_set_gcinvisible (Class class __attribute__ ((__unused__)),
+ const char *ivarname __attribute__ ((__unused__)),
+ BOOL gc_invisible __attribute__ ((__unused__)))
{
}
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