/* This file "renames" various ObjC GNU runtime entry points
|
/* This file "renames" various ObjC GNU runtime entry points
|
(and fakes the existence of several others)
|
(and fakes the existence of several others)
|
if the NeXT runtime is being used. */
|
if the NeXT runtime is being used. */
|
/* Authors: Ziemowit Laski <zlaski@apple.com> */
|
/* Authors: Ziemowit Laski <zlaski@apple.com> */
|
/* David Ayers <d.ayers@inode.at> */
|
/* David Ayers <d.ayers@inode.at> */
|
|
|
#ifdef __NEXT_RUNTIME__
|
#ifdef __NEXT_RUNTIME__
|
#include <objc/objc-class.h>
|
#include <objc/objc-class.h>
|
#include <objc/Object.h>
|
#include <objc/Object.h>
|
#include <ctype.h>
|
#include <ctype.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <string.h>
|
#include <string.h>
|
|
|
#define objc_get_class(C) objc_getClass(C)
|
#define objc_get_class(C) objc_getClass(C)
|
#define objc_get_meta_class(C) objc_getMetaClass(C)
|
#define objc_get_meta_class(C) objc_getMetaClass(C)
|
#define class_get_class_method(C, S) class_getClassMethod(C, S)
|
#define class_get_class_method(C, S) class_getClassMethod(C, S)
|
#define class_get_instance_method(C, S) class_getInstanceMethod(C, S)
|
#define class_get_instance_method(C, S) class_getInstanceMethod(C, S)
|
#define method_get_imp(M) (((Method)M)->method_imp)
|
#define method_get_imp(M) (((Method)M)->method_imp)
|
#define sel_get_name(S) sel_getName(S)
|
#define sel_get_name(S) sel_getName(S)
|
#define class_create_instance(C) class_createInstance(C, 0)
|
#define class_create_instance(C) class_createInstance(C, 0)
|
#define class_get_class_name(C) object_getClassName(C)
|
#define class_get_class_name(C) object_getClassName(C)
|
#define class_get_super_class(C) (((struct objc_class *)C)->super_class)
|
#define class_get_super_class(C) (((struct objc_class *)C)->super_class)
|
#define object_get_super_class(O) class_get_super_class(*(struct objc_class **)O)
|
#define object_get_super_class(O) class_get_super_class(*(struct objc_class **)O)
|
#define objc_lookup_class(N) objc_lookUpClass(N)
|
#define objc_lookup_class(N) objc_lookUpClass(N)
|
#define object_get_class(O) (*(struct objc_class **)O)
|
#define object_get_class(O) (*(struct objc_class **)O)
|
#define class_is_class(C) (CLS_GETINFO((struct objc_class *)C, CLS_CLASS)? YES: NO)
|
#define class_is_class(C) (CLS_GETINFO((struct objc_class *)C, CLS_CLASS)? YES: NO)
|
#define class_is_meta_class(C) (CLS_GETINFO((struct objc_class *)C, CLS_META)? YES: NO)
|
#define class_is_meta_class(C) (CLS_GETINFO((struct objc_class *)C, CLS_META)? YES: NO)
|
#define object_is_class(O) class_is_meta_class(*(struct objc_class **)O)
|
#define object_is_class(O) class_is_meta_class(*(struct objc_class **)O)
|
#define object_is_meta_class(O) (class_is_meta_class(O) && class_is_meta_class(*(struct objc_class **)O))
|
#define object_is_meta_class(O) (class_is_meta_class(O) && class_is_meta_class(*(struct objc_class **)O))
|
|
|
/* You need either an empty +initialize method or an empty -forward:: method.
|
/* You need either an empty +initialize method or an empty -forward:: method.
|
The NeXT runtime unconditionally sends +initialize to classes when they are
|
The NeXT runtime unconditionally sends +initialize to classes when they are
|
first used, and unconditionally tries to forward methods that the class
|
first used, and unconditionally tries to forward methods that the class
|
doesn't understand (including +initialize). If you have neither +initialize
|
doesn't understand (including +initialize). If you have neither +initialize
|
nor -forward::, the runtime complains.
|
nor -forward::, the runtime complains.
|
|
|
The simplest workaround is to add
|
The simplest workaround is to add
|
|
|
+ initialize { return self; }
|
+ initialize { return self; }
|
|
|
to every root class @implementation. */
|
to every root class @implementation. */
|
|
|
#ifndef NULL
|
#ifndef NULL
|
#define NULL 0
|
#define NULL 0
|
#endif
|
#endif
|
|
|
/* The following is necessary to "cover" the bf*.m test cases on NeXT. */
|
/* The following is necessary to "cover" the bf*.m test cases on NeXT. */
|
|
|
#undef MAX
|
#undef MAX
|
#undef MIN
|
#undef MIN
|
#undef ROUND
|
#undef ROUND
|
|
|
#ifdef __cplusplus
|
#ifdef __cplusplus
|
#define MAX(X, Y) ((X > Y) ? X : Y)
|
#define MAX(X, Y) ((X > Y) ? X : Y)
|
#define MIN(X, Y) ((X < Y) ? X : Y)
|
#define MIN(X, Y) ((X < Y) ? X : Y)
|
#define ROUND(V, A) (A * ((V + A - 1) / A))
|
#define ROUND(V, A) (A * ((V + A - 1) / A))
|
#else
|
#else
|
#define MAX(X, Y) \
|
#define MAX(X, Y) \
|
({ typeof (X) __x = (X), __y = (Y); \
|
({ typeof (X) __x = (X), __y = (Y); \
|
(__x > __y ? __x : __y); })
|
(__x > __y ? __x : __y); })
|
#define MIN(X, Y) \
|
#define MIN(X, Y) \
|
({ typeof (X) __x = (X), __y = (Y); \
|
({ typeof (X) __x = (X), __y = (Y); \
|
(__x < __y ? __x : __y); })
|
(__x < __y ? __x : __y); })
|
#define ROUND(V, A) \
|
#define ROUND(V, A) \
|
({ typeof (V) __v = (V); typeof (A) __a = (A); \
|
({ typeof (V) __v = (V); typeof (A) __a = (A); \
|
__a * ((__v+__a - 1)/__a); })
|
__a * ((__v+__a - 1)/__a); })
|
#endif
|
#endif
|
|
|
#define BITS_PER_UNIT __CHAR_BIT__
|
#define BITS_PER_UNIT __CHAR_BIT__
|
typedef struct{ char a; } __small_struct;
|
typedef struct{ char a; } __small_struct;
|
#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
|
#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
|
|
|
/* Not sure why the following are missing from NeXT objc headers... */
|
/* Not sure why the following are missing from NeXT objc headers... */
|
|
|
#ifndef _C_LNG_LNG
|
#ifndef _C_LNG_LNG
|
#define _C_LNG_LNG 'q'
|
#define _C_LNG_LNG 'q'
|
#endif
|
#endif
|
#ifndef _C_ULNG_LNG
|
#ifndef _C_ULNG_LNG
|
#define _C_ULNG_LNG 'Q'
|
#define _C_ULNG_LNG 'Q'
|
#endif
|
#endif
|
#ifndef _C_ATOM
|
#ifndef _C_ATOM
|
#define _C_ATOM '%'
|
#define _C_ATOM '%'
|
#endif
|
#endif
|
#ifndef _C_BOOL
|
#ifndef _C_BOOL
|
#define _C_BOOL 'B'
|
#define _C_BOOL 'B'
|
#endif
|
#endif
|
|
|
#define _C_CONST 'r'
|
#define _C_CONST 'r'
|
#define _C_IN 'n'
|
#define _C_IN 'n'
|
#define _C_INOUT 'N'
|
#define _C_INOUT 'N'
|
#define _C_OUT 'o'
|
#define _C_OUT 'o'
|
#define _C_BYCOPY 'O'
|
#define _C_BYCOPY 'O'
|
#define _C_BYREF 'R'
|
#define _C_BYREF 'R'
|
#define _C_ONEWAY 'V'
|
#define _C_ONEWAY 'V'
|
#define _C_GCINVISIBLE '!'
|
#define _C_GCINVISIBLE '!'
|
|
|
#define _F_CONST 0x01
|
#define _F_CONST 0x01
|
#define _F_IN 0x01
|
#define _F_IN 0x01
|
#define _F_OUT 0x02
|
#define _F_OUT 0x02
|
#define _F_INOUT 0x03
|
#define _F_INOUT 0x03
|
#define _F_BYCOPY 0x04
|
#define _F_BYCOPY 0x04
|
#define _F_BYREF 0x08
|
#define _F_BYREF 0x08
|
#define _F_ONEWAY 0x10
|
#define _F_ONEWAY 0x10
|
#define _F_GCINVISIBLE 0x20
|
#define _F_GCINVISIBLE 0x20
|
|
|
struct objc_struct_layout
|
struct objc_struct_layout
|
{
|
{
|
const char *original_type;
|
const char *original_type;
|
const char *type;
|
const char *type;
|
const char *prev_type;
|
const char *prev_type;
|
unsigned int record_size;
|
unsigned int record_size;
|
unsigned int record_align;
|
unsigned int record_align;
|
};
|
};
|
|
|
typedef union arglist {
|
typedef union arglist {
|
char *arg_ptr;
|
char *arg_ptr;
|
char arg_regs[sizeof (char*)];
|
char arg_regs[sizeof (char*)];
|
} *arglist_t; /* argument frame */
|
} *arglist_t; /* argument frame */
|
|
|
const char *objc_skip_typespec (const char *type);
|
const char *objc_skip_typespec (const char *type);
|
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
unsigned int *offset, unsigned int *align, const char **type);
|
unsigned int *offset, unsigned int *align, const char **type);
|
void objc_layout_structure (const char *type,
|
void objc_layout_structure (const char *type,
|
struct objc_struct_layout *layout);
|
struct objc_struct_layout *layout);
|
BOOL objc_layout_structure_next_member (struct objc_struct_layout *layout);
|
BOOL objc_layout_structure_next_member (struct objc_struct_layout *layout);
|
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
unsigned int *size, unsigned int *align);
|
unsigned int *size, unsigned int *align);
|
int objc_aligned_size (const char *type);
|
int objc_aligned_size (const char *type);
|
|
|
/*
|
/*
|
return the size of an object specified by type
|
return the size of an object specified by type
|
*/
|
*/
|
|
|
int
|
int
|
objc_sizeof_type (const char *type)
|
objc_sizeof_type (const char *type)
|
{
|
{
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
|
|
switch (*type) {
|
switch (*type) {
|
case _C_ID:
|
case _C_ID:
|
return sizeof (id);
|
return sizeof (id);
|
break;
|
break;
|
|
|
case _C_CLASS:
|
case _C_CLASS:
|
return sizeof (Class);
|
return sizeof (Class);
|
break;
|
break;
|
|
|
case _C_SEL:
|
case _C_SEL:
|
return sizeof (SEL);
|
return sizeof (SEL);
|
break;
|
break;
|
|
|
case _C_CHR:
|
case _C_CHR:
|
return sizeof (char);
|
return sizeof (char);
|
break;
|
break;
|
|
|
case _C_UCHR:
|
case _C_UCHR:
|
return sizeof (unsigned char);
|
return sizeof (unsigned char);
|
break;
|
break;
|
|
|
case _C_SHT:
|
case _C_SHT:
|
return sizeof (short);
|
return sizeof (short);
|
break;
|
break;
|
|
|
case _C_USHT:
|
case _C_USHT:
|
return sizeof (unsigned short);
|
return sizeof (unsigned short);
|
break;
|
break;
|
|
|
case _C_INT:
|
case _C_INT:
|
return sizeof (int);
|
return sizeof (int);
|
break;
|
break;
|
|
|
case _C_UINT:
|
case _C_UINT:
|
return sizeof (unsigned int);
|
return sizeof (unsigned int);
|
break;
|
break;
|
|
|
case _C_LNG:
|
case _C_LNG:
|
return sizeof (long);
|
return sizeof (long);
|
break;
|
break;
|
|
|
case _C_ULNG:
|
case _C_ULNG:
|
return sizeof (unsigned long);
|
return sizeof (unsigned long);
|
break;
|
break;
|
|
|
case _C_LNG_LNG:
|
case _C_LNG_LNG:
|
return sizeof (long long);
|
return sizeof (long long);
|
break;
|
break;
|
|
|
case _C_ULNG_LNG:
|
case _C_ULNG_LNG:
|
return sizeof (unsigned long long);
|
return sizeof (unsigned long long);
|
break;
|
break;
|
|
|
case _C_FLT:
|
case _C_FLT:
|
return sizeof (float);
|
return sizeof (float);
|
break;
|
break;
|
|
|
case _C_DBL:
|
case _C_DBL:
|
return sizeof (double);
|
return sizeof (double);
|
break;
|
break;
|
|
|
case _C_PTR:
|
case _C_PTR:
|
case _C_ATOM:
|
case _C_ATOM:
|
case _C_CHARPTR:
|
case _C_CHARPTR:
|
return sizeof (char *);
|
return sizeof (char *);
|
break;
|
break;
|
|
|
case _C_ARY_B:
|
case _C_ARY_B:
|
{
|
{
|
int len = atoi (type + 1);
|
int len = atoi (type + 1);
|
while (isdigit ((unsigned char)*++type))
|
while (isdigit ((unsigned char)*++type))
|
;
|
;
|
return len * objc_aligned_size (type);
|
return len * objc_aligned_size (type);
|
}
|
}
|
break;
|
break;
|
|
|
case _C_BFLD:
|
case _C_BFLD:
|
{
|
{
|
/* The NeXT encoding of bitfields is _still_: b 'size' */
|
/* The NeXT encoding of bitfields is _still_: b 'size' */
|
int size = atoi (type + 1);
|
int size = atoi (type + 1);
|
/* Return an upper bound on byte size */
|
/* Return an upper bound on byte size */
|
return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
|
return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
|
}
|
}
|
|
|
case _C_STRUCT_B:
|
case _C_STRUCT_B:
|
{
|
{
|
struct objc_struct_layout layout;
|
struct objc_struct_layout layout;
|
unsigned int size;
|
unsigned int size;
|
|
|
objc_layout_structure (type, &layout);
|
objc_layout_structure (type, &layout);
|
while (objc_layout_structure_next_member (&layout))
|
while (objc_layout_structure_next_member (&layout))
|
/* do nothing */ ;
|
/* do nothing */ ;
|
objc_layout_finish_structure (&layout, &size, NULL);
|
objc_layout_finish_structure (&layout, &size, NULL);
|
|
|
return size;
|
return size;
|
}
|
}
|
|
|
case _C_UNION_B:
|
case _C_UNION_B:
|
{
|
{
|
int max_size = 0;
|
int max_size = 0;
|
while (*type != _C_UNION_E && *type++ != '=')
|
while (*type != _C_UNION_E && *type++ != '=')
|
/* do nothing */;
|
/* do nothing */;
|
while (*type != _C_UNION_E)
|
while (*type != _C_UNION_E)
|
{
|
{
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
max_size = MAX (max_size, objc_sizeof_type (type));
|
max_size = MAX (max_size, objc_sizeof_type (type));
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
}
|
}
|
return max_size;
|
return max_size;
|
}
|
}
|
}
|
}
|
return 0; /* error */
|
return 0; /* error */
|
}
|
}
|
|
|
|
|
/*
|
/*
|
Return the alignment of an object specified by type
|
Return the alignment of an object specified by type
|
*/
|
*/
|
|
|
int
|
int
|
objc_alignof_type (const char *type)
|
objc_alignof_type (const char *type)
|
{
|
{
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
switch (*type) {
|
switch (*type) {
|
case _C_ID:
|
case _C_ID:
|
return __alignof__ (id);
|
return __alignof__ (id);
|
break;
|
break;
|
|
|
case _C_CLASS:
|
case _C_CLASS:
|
return __alignof__ (Class);
|
return __alignof__ (Class);
|
break;
|
break;
|
|
|
case _C_SEL:
|
case _C_SEL:
|
return __alignof__ (SEL);
|
return __alignof__ (SEL);
|
break;
|
break;
|
|
|
case _C_CHR:
|
case _C_CHR:
|
return __alignof__ (char);
|
return __alignof__ (char);
|
break;
|
break;
|
|
|
case _C_UCHR:
|
case _C_UCHR:
|
return __alignof__ (unsigned char);
|
return __alignof__ (unsigned char);
|
break;
|
break;
|
|
|
case _C_SHT:
|
case _C_SHT:
|
return __alignof__ (short);
|
return __alignof__ (short);
|
break;
|
break;
|
|
|
case _C_USHT:
|
case _C_USHT:
|
return __alignof__ (unsigned short);
|
return __alignof__ (unsigned short);
|
break;
|
break;
|
|
|
case _C_INT:
|
case _C_INT:
|
case _C_BFLD: /* This is for the NeXT only */
|
case _C_BFLD: /* This is for the NeXT only */
|
return __alignof__ (int);
|
return __alignof__ (int);
|
break;
|
break;
|
|
|
case _C_UINT:
|
case _C_UINT:
|
return __alignof__ (unsigned int);
|
return __alignof__ (unsigned int);
|
break;
|
break;
|
|
|
case _C_LNG:
|
case _C_LNG:
|
return __alignof__ (long);
|
return __alignof__ (long);
|
break;
|
break;
|
|
|
case _C_ULNG:
|
case _C_ULNG:
|
return __alignof__ (unsigned long);
|
return __alignof__ (unsigned long);
|
break;
|
break;
|
|
|
case _C_LNG_LNG:
|
case _C_LNG_LNG:
|
return __alignof__ (long long);
|
return __alignof__ (long long);
|
break;
|
break;
|
|
|
case _C_ULNG_LNG:
|
case _C_ULNG_LNG:
|
return __alignof__ (unsigned long long);
|
return __alignof__ (unsigned long long);
|
break;
|
break;
|
|
|
case _C_FLT:
|
case _C_FLT:
|
return __alignof__ (float);
|
return __alignof__ (float);
|
break;
|
break;
|
|
|
case _C_DBL:
|
case _C_DBL:
|
return __alignof__ (double);
|
return __alignof__ (double);
|
break;
|
break;
|
|
|
case _C_PTR:
|
case _C_PTR:
|
case _C_ATOM:
|
case _C_ATOM:
|
case _C_CHARPTR:
|
case _C_CHARPTR:
|
return __alignof__ (char *);
|
return __alignof__ (char *);
|
break;
|
break;
|
|
|
case _C_ARY_B:
|
case _C_ARY_B:
|
while (isdigit ((unsigned char)*++type))
|
while (isdigit ((unsigned char)*++type))
|
/* do nothing */;
|
/* do nothing */;
|
return objc_alignof_type (type);
|
return objc_alignof_type (type);
|
|
|
case _C_STRUCT_B:
|
case _C_STRUCT_B:
|
{
|
{
|
struct objc_struct_layout layout;
|
struct objc_struct_layout layout;
|
unsigned int align;
|
unsigned int align;
|
|
|
objc_layout_structure (type, &layout);
|
objc_layout_structure (type, &layout);
|
while (objc_layout_structure_next_member (&layout))
|
while (objc_layout_structure_next_member (&layout))
|
/* do nothing */;
|
/* do nothing */;
|
objc_layout_finish_structure (&layout, NULL, &align);
|
objc_layout_finish_structure (&layout, NULL, &align);
|
|
|
return align;
|
return align;
|
}
|
}
|
|
|
case _C_UNION_B:
|
case _C_UNION_B:
|
{
|
{
|
int maxalign = 0;
|
int maxalign = 0;
|
while (*type != _C_UNION_E && *type++ != '=')
|
while (*type != _C_UNION_E && *type++ != '=')
|
/* do nothing */;
|
/* do nothing */;
|
while (*type != _C_UNION_E)
|
while (*type != _C_UNION_E)
|
{
|
{
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
maxalign = MAX (maxalign, objc_alignof_type (type));
|
maxalign = MAX (maxalign, objc_alignof_type (type));
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
}
|
}
|
return maxalign;
|
return maxalign;
|
}
|
}
|
}
|
}
|
return 0; /* error */
|
return 0; /* error */
|
}
|
}
|
|
|
/*
|
/*
|
The aligned size if the size rounded up to the nearest alignment.
|
The aligned size if the size rounded up to the nearest alignment.
|
*/
|
*/
|
|
|
int
|
int
|
objc_aligned_size (const char *type)
|
objc_aligned_size (const char *type)
|
{
|
{
|
int size, align;
|
int size, align;
|
|
|
/* Skip the variable name */
|
/* Skip the variable name */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
|
|
size = objc_sizeof_type (type);
|
size = objc_sizeof_type (type);
|
align = objc_alignof_type (type);
|
align = objc_alignof_type (type);
|
|
|
return ROUND (size, align);
|
return ROUND (size, align);
|
}
|
}
|
|
|
/*
|
/*
|
The size rounded up to the nearest integral of the wordsize, taken
|
The size rounded up to the nearest integral of the wordsize, taken
|
to be the size of a void *.
|
to be the size of a void *.
|
*/
|
*/
|
|
|
int
|
int
|
objc_promoted_size (const char *type)
|
objc_promoted_size (const char *type)
|
{
|
{
|
int size, wordsize;
|
int size, wordsize;
|
|
|
/* Skip the variable name */
|
/* Skip the variable name */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
|
|
size = objc_sizeof_type (type);
|
size = objc_sizeof_type (type);
|
wordsize = sizeof (void *);
|
wordsize = sizeof (void *);
|
|
|
return ROUND (size, wordsize);
|
return ROUND (size, wordsize);
|
}
|
}
|
|
|
/*
|
/*
|
Skip type qualifiers. These may eventually precede typespecs
|
Skip type qualifiers. These may eventually precede typespecs
|
occurring in method prototype encodings.
|
occurring in method prototype encodings.
|
*/
|
*/
|
|
|
inline const char *
|
inline const char *
|
objc_skip_type_qualifiers (const char *type)
|
objc_skip_type_qualifiers (const char *type)
|
{
|
{
|
while (*type == _C_CONST
|
while (*type == _C_CONST
|
|| *type == _C_IN
|
|| *type == _C_IN
|
|| *type == _C_INOUT
|
|| *type == _C_INOUT
|
|| *type == _C_OUT
|
|| *type == _C_OUT
|
|| *type == _C_BYCOPY
|
|| *type == _C_BYCOPY
|
|| *type == _C_BYREF
|
|| *type == _C_BYREF
|
|| *type == _C_ONEWAY
|
|| *type == _C_ONEWAY
|
|| *type == _C_GCINVISIBLE)
|
|| *type == _C_GCINVISIBLE)
|
{
|
{
|
type += 1;
|
type += 1;
|
}
|
}
|
return type;
|
return type;
|
}
|
}
|
|
|
|
|
/*
|
/*
|
Skip one typespec element. If the typespec is prepended by type
|
Skip one typespec element. If the typespec is prepended by type
|
qualifiers, these are skipped as well.
|
qualifiers, these are skipped as well.
|
*/
|
*/
|
|
|
const char *
|
const char *
|
objc_skip_typespec (const char *type)
|
objc_skip_typespec (const char *type)
|
{
|
{
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*type == '"')
|
if (*type == '"')
|
{
|
{
|
for (type++; *type++ != '"';)
|
for (type++; *type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
|
|
type = objc_skip_type_qualifiers (type);
|
type = objc_skip_type_qualifiers (type);
|
|
|
switch (*type) {
|
switch (*type) {
|
|
|
case _C_ID:
|
case _C_ID:
|
/* An id may be annotated by the actual type if it is known
|
/* An id may be annotated by the actual type if it is known
|
with the @"ClassName" syntax */
|
with the @"ClassName" syntax */
|
|
|
if (*++type != '"')
|
if (*++type != '"')
|
return type;
|
return type;
|
else
|
else
|
{
|
{
|
while (*++type != '"')
|
while (*++type != '"')
|
/* do nothing */;
|
/* do nothing */;
|
return type + 1;
|
return type + 1;
|
}
|
}
|
|
|
/* The following are one character type codes */
|
/* The following are one character type codes */
|
case _C_CLASS:
|
case _C_CLASS:
|
case _C_SEL:
|
case _C_SEL:
|
case _C_CHR:
|
case _C_CHR:
|
case _C_UCHR:
|
case _C_UCHR:
|
case _C_CHARPTR:
|
case _C_CHARPTR:
|
case _C_ATOM:
|
case _C_ATOM:
|
case _C_SHT:
|
case _C_SHT:
|
case _C_USHT:
|
case _C_USHT:
|
case _C_INT:
|
case _C_INT:
|
case _C_UINT:
|
case _C_UINT:
|
case _C_LNG:
|
case _C_LNG:
|
case _C_ULNG:
|
case _C_ULNG:
|
case _C_LNG_LNG:
|
case _C_LNG_LNG:
|
case _C_ULNG_LNG:
|
case _C_ULNG_LNG:
|
case _C_FLT:
|
case _C_FLT:
|
case _C_DBL:
|
case _C_DBL:
|
case _C_VOID:
|
case _C_VOID:
|
case _C_UNDEF:
|
case _C_UNDEF:
|
return ++type;
|
return ++type;
|
break;
|
break;
|
|
|
case _C_ARY_B:
|
case _C_ARY_B:
|
/* skip digits, typespec and closing ']' */
|
/* skip digits, typespec and closing ']' */
|
|
|
while (isdigit ((unsigned char)*++type))
|
while (isdigit ((unsigned char)*++type))
|
;
|
;
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
if (*type == _C_ARY_E)
|
if (*type == _C_ARY_E)
|
return ++type;
|
return ++type;
|
else
|
else
|
break; /* error */
|
break; /* error */
|
|
|
case _C_BFLD:
|
case _C_BFLD:
|
/* The NeXT encoding for bitfields is _still_: b 'size' */
|
/* The NeXT encoding for bitfields is _still_: b 'size' */
|
while (isdigit ((unsigned char)*++type))
|
while (isdigit ((unsigned char)*++type))
|
; /* skip type and size */
|
; /* skip type and size */
|
return type;
|
return type;
|
|
|
case _C_STRUCT_B:
|
case _C_STRUCT_B:
|
/* skip name, and elements until closing '}' */
|
/* skip name, and elements until closing '}' */
|
|
|
while (*type != _C_STRUCT_E && *type++ != '=')
|
while (*type != _C_STRUCT_E && *type++ != '=')
|
;
|
;
|
while (*type != _C_STRUCT_E)
|
while (*type != _C_STRUCT_E)
|
{
|
{
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
}
|
}
|
return ++type;
|
return ++type;
|
|
|
case _C_UNION_B:
|
case _C_UNION_B:
|
/* skip name, and elements until closing ')' */
|
/* skip name, and elements until closing ')' */
|
|
|
while (*type != _C_UNION_E && *type++ != '=')
|
while (*type != _C_UNION_E && *type++ != '=')
|
;
|
;
|
while (*type != _C_UNION_E)
|
while (*type != _C_UNION_E)
|
{
|
{
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
}
|
}
|
return ++type;
|
return ++type;
|
|
|
case _C_PTR:
|
case _C_PTR:
|
/* Just skip the following typespec */
|
/* Just skip the following typespec */
|
|
|
return objc_skip_typespec (++type);
|
return objc_skip_typespec (++type);
|
}
|
}
|
return 0; /* error */
|
return 0; /* error */
|
}
|
}
|
|
|
/*
|
/*
|
Skip an offset as part of a method encoding. This is prepended by a
|
Skip an offset as part of a method encoding. This is prepended by a
|
'+' if the argument is passed in registers.
|
'+' if the argument is passed in registers.
|
*/
|
*/
|
inline const char *
|
inline const char *
|
objc_skip_offset (const char *type)
|
objc_skip_offset (const char *type)
|
{
|
{
|
if (*type == '+')
|
if (*type == '+')
|
type++;
|
type++;
|
while (isdigit ((unsigned char) *++type))
|
while (isdigit ((unsigned char) *++type))
|
;
|
;
|
return type;
|
return type;
|
}
|
}
|
|
|
/*
|
/*
|
Skip an argument specification of a method encoding.
|
Skip an argument specification of a method encoding.
|
*/
|
*/
|
const char *
|
const char *
|
objc_skip_argspec (const char *type)
|
objc_skip_argspec (const char *type)
|
{
|
{
|
type = objc_skip_typespec (type);
|
type = objc_skip_typespec (type);
|
type = objc_skip_offset (type);
|
type = objc_skip_offset (type);
|
return type;
|
return type;
|
}
|
}
|
|
|
/*
|
/*
|
Return the number of arguments that the method MTH expects.
|
Return the number of arguments that the method MTH expects.
|
Note that all methods need two implicit arguments `self' and
|
Note that all methods need two implicit arguments `self' and
|
`_cmd'.
|
`_cmd'.
|
*/
|
*/
|
int
|
int
|
method_get_number_of_arguments (struct objc_method *mth)
|
method_get_number_of_arguments (struct objc_method *mth)
|
{
|
{
|
int i = 0;
|
int i = 0;
|
const char *type = mth->method_types;
|
const char *type = mth->method_types;
|
while (*type)
|
while (*type)
|
{
|
{
|
type = objc_skip_argspec (type);
|
type = objc_skip_argspec (type);
|
i += 1;
|
i += 1;
|
}
|
}
|
return i - 1;
|
return i - 1;
|
}
|
}
|
|
|
/*
|
/*
|
Return the size of the argument block needed on the stack to invoke
|
Return the size of the argument block needed on the stack to invoke
|
the method MTH. This may be zero, if all arguments are passed in
|
the method MTH. This may be zero, if all arguments are passed in
|
registers.
|
registers.
|
*/
|
*/
|
|
|
int
|
int
|
method_get_sizeof_arguments (struct objc_method *mth)
|
method_get_sizeof_arguments (struct objc_method *mth)
|
{
|
{
|
const char *type = objc_skip_typespec (mth->method_types);
|
const char *type = objc_skip_typespec (mth->method_types);
|
return atoi (type);
|
return atoi (type);
|
}
|
}
|
|
|
/*
|
/*
|
Return a pointer to the next argument of ARGFRAME. type points to
|
Return a pointer to the next argument of ARGFRAME. type points to
|
the last argument. Typical use of this look like:
|
the last argument. Typical use of this look like:
|
|
|
{
|
{
|
char *datum, *type;
|
char *datum, *type;
|
for (datum = method_get_first_argument (method, argframe, &type);
|
for (datum = method_get_first_argument (method, argframe, &type);
|
datum; datum = method_get_next_argument (argframe, &type))
|
datum; datum = method_get_next_argument (argframe, &type))
|
{
|
{
|
unsigned flags = objc_get_type_qualifiers (type);
|
unsigned flags = objc_get_type_qualifiers (type);
|
type = objc_skip_type_qualifiers (type);
|
type = objc_skip_type_qualifiers (type);
|
if (*type != _C_PTR)
|
if (*type != _C_PTR)
|
[portal encodeData: datum ofType: type];
|
[portal encodeData: datum ofType: type];
|
else
|
else
|
{
|
{
|
if ((flags & _F_IN) == _F_IN)
|
if ((flags & _F_IN) == _F_IN)
|
[portal encodeData: *(char **) datum ofType: ++type];
|
[portal encodeData: *(char **) datum ofType: ++type];
|
}
|
}
|
}
|
}
|
}
|
}
|
*/
|
*/
|
|
|
char *
|
char *
|
method_get_next_argument (arglist_t argframe, const char **type)
|
method_get_next_argument (arglist_t argframe, const char **type)
|
{
|
{
|
const char *t = objc_skip_argspec (*type);
|
const char *t = objc_skip_argspec (*type);
|
|
|
if (*t == '\0')
|
if (*t == '\0')
|
return 0;
|
return 0;
|
|
|
*type = t;
|
*type = t;
|
t = objc_skip_typespec (t);
|
t = objc_skip_typespec (t);
|
|
|
if (*t == '+')
|
if (*t == '+')
|
return argframe->arg_regs + atoi (++t);
|
return argframe->arg_regs + atoi (++t);
|
else
|
else
|
return argframe->arg_ptr + atoi (t);
|
return argframe->arg_ptr + atoi (t);
|
}
|
}
|
|
|
/*
|
/*
|
Return a pointer to the value of the first argument of the method
|
Return a pointer to the value of the first argument of the method
|
described in M with the given argumentframe ARGFRAME. The type
|
described in M with the given argumentframe ARGFRAME. The type
|
is returned in TYPE. type must be passed to successive calls of
|
is returned in TYPE. type must be passed to successive calls of
|
method_get_next_argument.
|
method_get_next_argument.
|
*/
|
*/
|
char *
|
char *
|
method_get_first_argument (struct objc_method *m,
|
method_get_first_argument (struct objc_method *m,
|
arglist_t argframe,
|
arglist_t argframe,
|
const char **type)
|
const char **type)
|
{
|
{
|
*type = m->method_types;
|
*type = m->method_types;
|
return method_get_next_argument (argframe, type);
|
return method_get_next_argument (argframe, type);
|
}
|
}
|
|
|
/*
|
/*
|
Return a pointer to the ARGth argument of the method
|
Return a pointer to the ARGth argument of the method
|
M from the frame ARGFRAME. The type of the argument
|
M from the frame ARGFRAME. The type of the argument
|
is returned in the value-result argument TYPE
|
is returned in the value-result argument TYPE
|
*/
|
*/
|
|
|
char *
|
char *
|
method_get_nth_argument (struct objc_method *m,
|
method_get_nth_argument (struct objc_method *m,
|
arglist_t argframe, int arg,
|
arglist_t argframe, int arg,
|
const char **type)
|
const char **type)
|
{
|
{
|
const char *t = objc_skip_argspec (m->method_types);
|
const char *t = objc_skip_argspec (m->method_types);
|
|
|
if (arg > method_get_number_of_arguments (m))
|
if (arg > method_get_number_of_arguments (m))
|
return 0;
|
return 0;
|
|
|
while (arg--)
|
while (arg--)
|
t = objc_skip_argspec (t);
|
t = objc_skip_argspec (t);
|
|
|
*type = t;
|
*type = t;
|
t = objc_skip_typespec (t);
|
t = objc_skip_typespec (t);
|
|
|
if (*t == '+')
|
if (*t == '+')
|
return argframe->arg_regs + atoi (++t);
|
return argframe->arg_regs + atoi (++t);
|
else
|
else
|
return argframe->arg_ptr + atoi (t);
|
return argframe->arg_ptr + atoi (t);
|
}
|
}
|
|
|
unsigned
|
unsigned
|
objc_get_type_qualifiers (const char *type)
|
objc_get_type_qualifiers (const char *type)
|
{
|
{
|
unsigned res = 0;
|
unsigned res = 0;
|
BOOL flag = YES;
|
BOOL flag = YES;
|
|
|
while (flag)
|
while (flag)
|
switch (*type++)
|
switch (*type++)
|
{
|
{
|
case _C_CONST: res |= _F_CONST; break;
|
case _C_CONST: res |= _F_CONST; break;
|
case _C_IN: res |= _F_IN; break;
|
case _C_IN: res |= _F_IN; break;
|
case _C_INOUT: res |= _F_INOUT; break;
|
case _C_INOUT: res |= _F_INOUT; break;
|
case _C_OUT: res |= _F_OUT; break;
|
case _C_OUT: res |= _F_OUT; break;
|
case _C_BYCOPY: res |= _F_BYCOPY; break;
|
case _C_BYCOPY: res |= _F_BYCOPY; break;
|
case _C_BYREF: res |= _F_BYREF; break;
|
case _C_BYREF: res |= _F_BYREF; break;
|
case _C_ONEWAY: res |= _F_ONEWAY; break;
|
case _C_ONEWAY: res |= _F_ONEWAY; break;
|
case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
|
case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
|
default: flag = NO;
|
default: flag = NO;
|
}
|
}
|
|
|
return res;
|
return res;
|
}
|
}
|
|
|
|
|
/* The following three functions can be used to determine how a
|
/* The following three functions can be used to determine how a
|
structure is laid out by the compiler. For example:
|
structure is laid out by the compiler. For example:
|
|
|
struct objc_struct_layout layout;
|
struct objc_struct_layout layout;
|
int i;
|
int i;
|
|
|
objc_layout_structure (type, &layout);
|
objc_layout_structure (type, &layout);
|
while (objc_layout_structure_next_member (&layout))
|
while (objc_layout_structure_next_member (&layout))
|
{
|
{
|
int position, align;
|
int position, align;
|
const char *type;
|
const char *type;
|
|
|
objc_layout_structure_get_info (&layout, &position, &align, &type);
|
objc_layout_structure_get_info (&layout, &position, &align, &type);
|
printf ("element %d has offset %d, alignment %d\n",
|
printf ("element %d has offset %d, alignment %d\n",
|
i++, position, align);
|
i++, position, align);
|
}
|
}
|
|
|
These functions are used by objc_sizeof_type and objc_alignof_type
|
These functions are used by objc_sizeof_type and objc_alignof_type
|
functions to compute the size and alignment of structures. The
|
functions to compute the size and alignment of structures. The
|
previous method of computing the size and alignment of a structure
|
previous method of computing the size and alignment of a structure
|
was not working on some architectures, particulary on AIX, and in
|
was not working on some architectures, particulary on AIX, and in
|
the presence of bitfields inside the structure. */
|
the presence of bitfields inside the structure. */
|
void
|
void
|
objc_layout_structure (const char *type,
|
objc_layout_structure (const char *type,
|
struct objc_struct_layout *layout)
|
struct objc_struct_layout *layout)
|
{
|
{
|
const char *ntype;
|
const char *ntype;
|
|
|
layout->original_type = ++type;
|
layout->original_type = ++type;
|
|
|
/* Skip "<name>=" if any. Avoid embedded structures and unions. */
|
/* Skip "<name>=" if any. Avoid embedded structures and unions. */
|
ntype = type;
|
ntype = type;
|
while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
|
while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
|
&& *ntype++ != '=')
|
&& *ntype++ != '=')
|
/* do nothing */;
|
/* do nothing */;
|
|
|
/* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
|
/* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
|
if (*(ntype - 1) == '=')
|
if (*(ntype - 1) == '=')
|
type = ntype;
|
type = ntype;
|
|
|
layout->type = type;
|
layout->type = type;
|
layout->prev_type = NULL;
|
layout->prev_type = NULL;
|
layout->record_size = 0;
|
layout->record_size = 0;
|
layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
|
layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
|
}
|
}
|
|
|
|
|
BOOL
|
BOOL
|
objc_layout_structure_next_member (struct objc_struct_layout *layout)
|
objc_layout_structure_next_member (struct objc_struct_layout *layout)
|
{
|
{
|
register int desired_align = 0;
|
register int desired_align = 0;
|
|
|
/* The current type without the type qualifiers */
|
/* The current type without the type qualifiers */
|
const char *type;
|
const char *type;
|
|
|
/* Add the size of the previous field to the size of the record. */
|
/* Add the size of the previous field to the size of the record. */
|
if (layout->prev_type)
|
if (layout->prev_type)
|
{
|
{
|
type = objc_skip_type_qualifiers (layout->prev_type);
|
type = objc_skip_type_qualifiers (layout->prev_type);
|
|
|
if (*type != _C_BFLD)
|
if (*type != _C_BFLD)
|
layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
|
layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
|
else
|
else
|
layout->record_size += atoi (++type);
|
layout->record_size += atoi (++type);
|
}
|
}
|
|
|
if (*layout->type == _C_STRUCT_E)
|
if (*layout->type == _C_STRUCT_E)
|
return NO;
|
return NO;
|
|
|
/* Skip the variable name if any */
|
/* Skip the variable name if any */
|
if (*layout->type == '"')
|
if (*layout->type == '"')
|
{
|
{
|
for (layout->type++; *layout->type++ != '"';)
|
for (layout->type++; *layout->type++ != '"';)
|
/* do nothing */;
|
/* do nothing */;
|
}
|
}
|
|
|
type = objc_skip_type_qualifiers (layout->type);
|
type = objc_skip_type_qualifiers (layout->type);
|
|
|
desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
|
desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
|
|
|
/* Record must have at least as much alignment as any field.
|
/* Record must have at least as much alignment as any field.
|
Otherwise, the alignment of the field within the record
|
Otherwise, the alignment of the field within the record
|
is meaningless. */
|
is meaningless. */
|
layout->record_align = MAX (layout->record_align, desired_align);
|
layout->record_align = MAX (layout->record_align, desired_align);
|
|
|
if (*type == _C_BFLD)
|
if (*type == _C_BFLD)
|
{
|
{
|
int bfld_size = atoi (++type);
|
int bfld_size = atoi (++type);
|
int int_align = __alignof__ (int) * BITS_PER_UNIT;
|
int int_align = __alignof__ (int) * BITS_PER_UNIT;
|
/* If this bitfield would traverse a word alignment boundary, push it out
|
/* If this bitfield would traverse a word alignment boundary, push it out
|
to that boundary instead. */
|
to that boundary instead. */
|
if (layout->record_size % int_align
|
if (layout->record_size % int_align
|
&& (layout->record_size / int_align
|
&& (layout->record_size / int_align
|
< (layout->record_size + bfld_size - 1) / int_align))
|
< (layout->record_size + bfld_size - 1) / int_align))
|
layout->record_size = ROUND (layout->record_size, int_align);
|
layout->record_size = ROUND (layout->record_size, int_align);
|
}
|
}
|
else if (layout->record_size % desired_align != 0)
|
else if (layout->record_size % desired_align != 0)
|
{
|
{
|
/* We need to skip space before this field.
|
/* We need to skip space before this field.
|
Bump the cumulative size to multiple of field alignment. */
|
Bump the cumulative size to multiple of field alignment. */
|
layout->record_size = ROUND (layout->record_size, desired_align);
|
layout->record_size = ROUND (layout->record_size, desired_align);
|
}
|
}
|
|
|
/* Jump to the next field in record. */
|
/* Jump to the next field in record. */
|
|
|
layout->prev_type = layout->type;
|
layout->prev_type = layout->type;
|
layout->type = objc_skip_typespec (layout->type); /* skip component */
|
layout->type = objc_skip_typespec (layout->type); /* skip component */
|
|
|
return YES;
|
return YES;
|
}
|
}
|
|
|
|
|
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
void objc_layout_finish_structure (struct objc_struct_layout *layout,
|
unsigned int *size,
|
unsigned int *size,
|
unsigned int *align)
|
unsigned int *align)
|
{
|
{
|
if (layout->type && *layout->type == _C_STRUCT_E)
|
if (layout->type && *layout->type == _C_STRUCT_E)
|
{
|
{
|
/* Round the size up to be a multiple of the required alignment */
|
/* Round the size up to be a multiple of the required alignment */
|
layout->record_size = ROUND (layout->record_size, layout->record_align);
|
layout->record_size = ROUND (layout->record_size, layout->record_align);
|
layout->type = NULL;
|
layout->type = NULL;
|
}
|
}
|
if (size)
|
if (size)
|
*size = layout->record_size / BITS_PER_UNIT;
|
*size = layout->record_size / BITS_PER_UNIT;
|
if (align)
|
if (align)
|
*align = layout->record_align / BITS_PER_UNIT;
|
*align = layout->record_align / BITS_PER_UNIT;
|
}
|
}
|
|
|
|
|
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
void objc_layout_structure_get_info (struct objc_struct_layout *layout,
|
unsigned int *offset,
|
unsigned int *offset,
|
unsigned int *align,
|
unsigned int *align,
|
const char **type)
|
const char **type)
|
{
|
{
|
if (offset)
|
if (offset)
|
*offset = layout->record_size / BITS_PER_UNIT;
|
*offset = layout->record_size / BITS_PER_UNIT;
|
if (align)
|
if (align)
|
*align = layout->record_align / BITS_PER_UNIT;
|
*align = layout->record_align / BITS_PER_UNIT;
|
if (type)
|
if (type)
|
*type = layout->prev_type;
|
*type = layout->prev_type;
|
}
|
}
|
|
|
/* A small, portable NSConstantString implementation for use with the NeXT
|
/* A small, portable NSConstantString implementation for use with the NeXT
|
runtime.
|
runtime.
|
|
|
On full-fledged Mac OS X systems, NSConstantString is provided
|
On full-fledged Mac OS X systems, NSConstantString is provided
|
as part of the Foundation framework. However, on bare Darwin systems,
|
as part of the Foundation framework. However, on bare Darwin systems,
|
Foundation is not included, and hence there is no NSConstantString
|
Foundation is not included, and hence there is no NSConstantString
|
implementation to link against.
|
implementation to link against.
|
|
|
This code is derived from the GNU runtime's NXConstantString implementation.
|
This code is derived from the GNU runtime's NXConstantString implementation.
|
*/
|
*/
|
|
|
struct objc_class _NSConstantStringClassReference;
|
struct objc_class _NSConstantStringClassReference;
|
|
|
@interface NSConstantString : Object
|
@interface NSConstantString : Object
|
{
|
{
|
char *c_string;
|
char *c_string;
|
unsigned int len;
|
unsigned int len;
|
}
|
}
|
|
|
-(const char *) cString;
|
-(const char *) cString;
|
-(unsigned int) length;
|
-(unsigned int) length;
|
|
|
@end
|
@end
|
|
|
@implementation NSConstantString
|
@implementation NSConstantString
|
|
|
-(const char *) cString
|
-(const char *) cString
|
{
|
{
|
return (c_string);
|
return (c_string);
|
}
|
}
|
|
|
-(unsigned int) length
|
-(unsigned int) length
|
{
|
{
|
return (len);
|
return (len);
|
}
|
}
|
|
|
@end
|
@end
|
|
|
/* The NSConstantString metaclass will need to be initialized before we can
|
/* The NSConstantString metaclass will need to be initialized before we can
|
send messages to strings. */
|
send messages to strings. */
|
|
|
void objc_constant_string_init (void) __attribute__((constructor));
|
void objc_constant_string_init (void) __attribute__((constructor));
|
void objc_constant_string_init (void) {
|
void objc_constant_string_init (void) {
|
memcpy (&_NSConstantStringClassReference,
|
memcpy (&_NSConstantStringClassReference,
|
objc_getClass ("NSConstantString"),
|
objc_getClass ("NSConstantString"),
|
sizeof (_NSConstantStringClassReference));
|
sizeof (_NSConstantStringClassReference));
|
}
|
}
|
|
|
#endif /* #ifdef __NEXT_RUNTIME__ */
|
#endif /* #ifdef __NEXT_RUNTIME__ */
|
|
|
