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-rw-r--r--gcc/testsuite/objc-obj-c++-shared/next-mapping.h839
1 files changed, 5 insertions, 834 deletions
diff --git a/gcc/testsuite/objc-obj-c++-shared/next-mapping.h b/gcc/testsuite/objc-obj-c++-shared/next-mapping.h
index e5e2d22..3b141c6 100644
--- a/gcc/testsuite/objc-obj-c++-shared/next-mapping.h
+++ b/gcc/testsuite/objc-obj-c++-shared/next-mapping.h
@@ -1,3 +1,6 @@
+#ifndef _OBJC_NEXT_MAPPING_H_
+#define _OBJC_NEXT_MAPPING_H_
+
/* This file "renames" various ObjC GNU runtime entry points
(and fakes the existence of several others)
if the NeXT runtime is being used. */
@@ -81,839 +84,6 @@
#define NULL 0
#endif
-/* The following is necessary to "cover" the bf*.m test cases on NeXT. */
-
-#undef MAX
-#undef MIN
-#undef ROUND
-
-#ifdef __cplusplus
-# define MAX(X, Y) ((X > Y) ? X : Y)
-# define MIN(X, Y) ((X < Y) ? X : Y)
-# define ROUND(V, A) (A * ((V + A - 1) / A))
-#else
-# define MAX(X, Y) \
- ({ typeof (X) __x = (X), __y = (Y); \
- (__x > __y ? __x : __y); })
-# define MIN(X, Y) \
- ({ typeof (X) __x = (X), __y = (Y); \
- (__x < __y ? __x : __y); })
-# define ROUND(V, A) \
- ({ typeof (V) __v = (V); typeof (A) __a = (A); \
- __a * ((__v+__a - 1)/__a); })
-#endif
-
-#define BITS_PER_UNIT __CHAR_BIT__
-typedef struct{ char a; } __small_struct;
-#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
-
-/* Not sure why the following are missing from NeXT objc headers... */
-
-#ifndef _C_LNG_LNG
-#define _C_LNG_LNG 'q'
-#endif
-#ifndef _C_ULNG_LNG
-#define _C_ULNG_LNG 'Q'
-#endif
-#ifndef _C_ATOM
-#define _C_ATOM '%'
-#endif
-#ifndef _C_BOOL
-#define _C_BOOL 'B'
-#endif
-
-#define _C_CONST 'r'
-#define _C_IN 'n'
-#define _C_INOUT 'N'
-#define _C_OUT 'o'
-#define _C_BYCOPY 'O'
-#define _C_BYREF 'R'
-#define _C_ONEWAY 'V'
-#define _C_GCINVISIBLE '!'
-
-#define _F_CONST 0x01
-#define _F_IN 0x01
-#define _F_OUT 0x02
-#define _F_INOUT 0x03
-#define _F_BYCOPY 0x04
-#define _F_BYREF 0x08
-#define _F_ONEWAY 0x10
-#define _F_GCINVISIBLE 0x20
-
-struct objc_struct_layout
-{
- const char *original_type;
- const char *type;
- const char *prev_type;
- unsigned int record_size;
- unsigned int record_align;
-};
-
-typedef union arglist {
- char *arg_ptr;
- char arg_regs[sizeof (char*)];
-} *arglist_t; /* argument frame */
-
-const char *objc_skip_typespec (const char *type);
-void objc_layout_structure_get_info (struct objc_struct_layout *layout,
- unsigned int *offset, unsigned int *align, const char **type);
-void objc_layout_structure (const char *type,
- 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,
- unsigned int *size, unsigned int *align);
-int objc_aligned_size (const char *type);
-
-/*
- return the size of an object specified by type
-*/
-
-int
-objc_sizeof_type (const char *type)
-{
- /* Skip the variable name if any */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
-
- switch (*type) {
- case _C_ID:
- return sizeof (id);
- break;
-
- case _C_CLASS:
- return sizeof (Class);
- break;
-
- case _C_SEL:
- return sizeof (SEL);
- break;
-
- case _C_CHR:
- return sizeof (char);
- break;
-
- case _C_UCHR:
- return sizeof (unsigned char);
- break;
-
- case _C_SHT:
- return sizeof (short);
- break;
-
- case _C_USHT:
- return sizeof (unsigned short);
- break;
-
- case _C_INT:
- return sizeof (int);
- break;
-
- case _C_UINT:
- return sizeof (unsigned int);
- break;
-
- case _C_LNG:
- return sizeof (long);
- break;
-
- case _C_ULNG:
- return sizeof (unsigned long);
- break;
-
- case _C_LNG_LNG:
- return sizeof (long long);
- break;
-
- case _C_ULNG_LNG:
- return sizeof (unsigned long long);
- break;
-
- case _C_FLT:
- return sizeof (float);
- break;
-
- case _C_DBL:
- return sizeof (double);
- break;
-
- case _C_PTR:
- case _C_ATOM:
- case _C_CHARPTR:
- return sizeof (char *);
- break;
-
- case _C_ARY_B:
- {
- int len = atoi (type + 1);
- while (isdigit ((unsigned char)*++type))
- ;
- return len * objc_aligned_size (type);
- }
- break;
-
- case _C_BFLD:
- {
- /* The NeXT encoding of bitfields is _still_: b 'size' */
- int size = atoi (type + 1);
- /* Return an upper bound on byte size */
- return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
- }
-
- case _C_STRUCT_B:
- {
- struct objc_struct_layout layout;
- unsigned int size;
-
- objc_layout_structure (type, &layout);
- while (objc_layout_structure_next_member (&layout))
- /* do nothing */ ;
- objc_layout_finish_structure (&layout, &size, NULL);
-
- return size;
- }
-
- case _C_UNION_B:
- {
- int max_size = 0;
- while (*type != _C_UNION_E && *type++ != '=')
- /* do nothing */;
- while (*type != _C_UNION_E)
- {
- /* Skip the variable name if any */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
- max_size = MAX (max_size, objc_sizeof_type (type));
- type = objc_skip_typespec (type);
- }
- return max_size;
- }
- }
- return 0; /* error */
-}
-
-
-/*
- Return the alignment of an object specified by type
-*/
-
-int
-objc_alignof_type (const char *type)
-{
- /* Skip the variable name if any */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
- switch (*type) {
- case _C_ID:
- return __alignof__ (id);
- break;
-
- case _C_CLASS:
- return __alignof__ (Class);
- break;
-
- case _C_SEL:
- return __alignof__ (SEL);
- break;
-
- case _C_CHR:
- return __alignof__ (char);
- break;
-
- case _C_UCHR:
- return __alignof__ (unsigned char);
- break;
-
- case _C_SHT:
- return __alignof__ (short);
- break;
-
- case _C_USHT:
- return __alignof__ (unsigned short);
- break;
-
- case _C_INT:
- case _C_BFLD: /* This is for the NeXT only */
- return __alignof__ (int);
- break;
-
- case _C_UINT:
- return __alignof__ (unsigned int);
- break;
-
- case _C_LNG:
- return __alignof__ (long);
- break;
-
- case _C_ULNG:
- return __alignof__ (unsigned long);
- break;
-
- case _C_LNG_LNG:
- return __alignof__ (long long);
- break;
-
- case _C_ULNG_LNG:
- return __alignof__ (unsigned long long);
- break;
-
- case _C_FLT:
- return __alignof__ (float);
- break;
-
- case _C_DBL:
- return __alignof__ (double);
- break;
-
- case _C_PTR:
- case _C_ATOM:
- case _C_CHARPTR:
- return __alignof__ (char *);
- break;
-
- case _C_ARY_B:
- while (isdigit ((unsigned char)*++type))
- /* do nothing */;
- return objc_alignof_type (type);
-
- case _C_STRUCT_B:
- {
- struct objc_struct_layout layout;
- unsigned int align;
-
- objc_layout_structure (type, &layout);
- while (objc_layout_structure_next_member (&layout))
- /* do nothing */;
- objc_layout_finish_structure (&layout, NULL, &align);
-
- return align;
- }
-
- case _C_UNION_B:
- {
- int maxalign = 0;
- while (*type != _C_UNION_E && *type++ != '=')
- /* do nothing */;
- while (*type != _C_UNION_E)
- {
- /* Skip the variable name if any */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
- maxalign = MAX (maxalign, objc_alignof_type (type));
- type = objc_skip_typespec (type);
- }
- return maxalign;
- }
- }
- return 0; /* error */
-}
-
-/*
- The aligned size if the size rounded up to the nearest alignment.
-*/
-
-int
-objc_aligned_size (const char *type)
-{
- int size, align;
-
- /* Skip the variable name */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
-
- size = objc_sizeof_type (type);
- align = objc_alignof_type (type);
-
- return ROUND (size, align);
-}
-
-/*
- The size rounded up to the nearest integral of the wordsize, taken
- to be the size of a void *.
-*/
-
-int
-objc_promoted_size (const char *type)
-{
- int size, wordsize;
-
- /* Skip the variable name */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
-
- size = objc_sizeof_type (type);
- wordsize = sizeof (void *);
-
- return ROUND (size, wordsize);
-}
-
-/*
- Skip type qualifiers. These may eventually precede typespecs
- occurring in method prototype encodings.
-*/
-
-inline const char *
-objc_skip_type_qualifiers (const char *type)
-{
- while (*type == _C_CONST
- || *type == _C_IN
- || *type == _C_INOUT
- || *type == _C_OUT
- || *type == _C_BYCOPY
- || *type == _C_BYREF
- || *type == _C_ONEWAY
- || *type == _C_GCINVISIBLE)
- {
- type += 1;
- }
- return type;
-}
-
-
-/*
- Skip one typespec element. If the typespec is prepended by type
- qualifiers, these are skipped as well.
-*/
-
-const char *
-objc_skip_typespec (const char *type)
-{
- /* Skip the variable name if any */
- if (*type == '"')
- {
- for (type++; *type++ != '"';)
- /* do nothing */;
- }
-
- type = objc_skip_type_qualifiers (type);
-
- switch (*type) {
-
- case _C_ID:
- /* An id may be annotated by the actual type if it is known
- with the @"ClassName" syntax */
-
- if (*++type != '"')
- return type;
- else
- {
- while (*++type != '"')
- /* do nothing */;
- return type + 1;
- }
-
- /* The following are one character type codes */
- case _C_CLASS:
- case _C_SEL:
- case _C_CHR:
- case _C_UCHR:
- case _C_CHARPTR:
- case _C_ATOM:
- case _C_SHT:
- case _C_USHT:
- case _C_INT:
- case _C_UINT:
- case _C_LNG:
- case _C_ULNG:
- case _C_LNG_LNG:
- case _C_ULNG_LNG:
- case _C_FLT:
- case _C_DBL:
- case _C_VOID:
- case _C_UNDEF:
- return ++type;
- break;
-
- case _C_ARY_B:
- /* skip digits, typespec and closing ']' */
-
- while (isdigit ((unsigned char)*++type))
- ;
- type = objc_skip_typespec (type);
- if (*type == _C_ARY_E)
- return ++type;
- else
- break; /* error */
-
- case _C_BFLD:
- /* The NeXT encoding for bitfields is _still_: b 'size' */
- while (isdigit ((unsigned char)*++type))
- ; /* skip type and size */
- return type;
-
- case _C_STRUCT_B:
- /* skip name, and elements until closing '}' */
-
- while (*type != _C_STRUCT_E && *type++ != '=')
- ;
- while (*type != _C_STRUCT_E)
- {
- type = objc_skip_typespec (type);
- }
- return ++type;
-
- case _C_UNION_B:
- /* skip name, and elements until closing ')' */
-
- while (*type != _C_UNION_E && *type++ != '=')
- ;
- while (*type != _C_UNION_E)
- {
- type = objc_skip_typespec (type);
- }
- return ++type;
-
- case _C_PTR:
- /* Just skip the following typespec */
-
- return objc_skip_typespec (++type);
- }
- return 0; /* error */
-}
-
-/*
- Skip an offset as part of a method encoding. This is prepended by a
- '+' if the argument is passed in registers.
-*/
-inline const char *
-objc_skip_offset (const char *type)
-{
- if (*type == '+')
- type++;
- while (isdigit ((unsigned char) *++type))
- ;
- return type;
-}
-
-/*
- Skip an argument specification of a method encoding.
-*/
-const char *
-objc_skip_argspec (const char *type)
-{
- type = objc_skip_typespec (type);
- type = objc_skip_offset (type);
- return type;
-}
-
-#ifdef NEXT_OBJC_USE_NEW_INTERFACE
-typedef void *PMETH;
-#else
-typedef struct objc_method *PMETH;
-#endif
-
-/*
- Return the number of arguments that the method MTH expects.
- Note that all methods need two implicit arguments `self' and
- `_cmd'.
-*/
-int
-method_get_number_of_arguments (PMETH mth)
-{
- int i = 0;
-#ifdef NEXT_OBJC_USE_NEW_INTERFACE
- const char *type = method_getTypeEncoding((Method)mth);
-#else
- const char *type = mth->method_types;
-#endif
- while (*type)
- {
- type = objc_skip_argspec (type);
- i += 1;
- }
- return i - 1;
-}
-
-/*
- 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
- registers.
-*/
-
-int
-method_get_sizeof_arguments (PMETH mth)
-{
-#ifdef NEXT_OBJC_USE_NEW_INTERFACE
- const char *type = objc_skip_typespec (method_getTypeEncoding((Method)mth));
-#else
- const char *type = objc_skip_typespec (mth->method_types);
-#endif
- return atoi (type);
-}
-
-/*
- Return a pointer to the next argument of ARGFRAME. type points to
- the last argument. Typical use of this look like:
-
- {
- char *datum, *type;
- for (datum = method_get_first_argument (method, argframe, &type);
- datum; datum = method_get_next_argument (argframe, &type))
- {
- unsigned flags = objc_get_type_qualifiers (type);
- type = objc_skip_type_qualifiers (type);
- if (*type != _C_PTR)
- [portal encodeData: datum ofType: type];
- else
- {
- if ((flags & _F_IN) == _F_IN)
- [portal encodeData: *(char **) datum ofType: ++type];
- }
- }
- }
-*/
-
-char *
-method_get_next_argument (arglist_t argframe, const char **type)
-{
- const char *t = objc_skip_argspec (*type);
-
- if (*t == '\0')
- return 0;
-
- *type = t;
- t = objc_skip_typespec (t);
-
- if (*t == '+')
- return argframe->arg_regs + atoi (++t);
- else
- return argframe->arg_ptr + atoi (t);
-}
-
-/*
- Return a pointer to the value of the first argument of the method
- described in M with the given argumentframe ARGFRAME. The type
- is returned in TYPE. type must be passed to successive calls of
- method_get_next_argument.
-*/
-char *
-method_get_first_argument (PMETH m,
- arglist_t argframe,
- const char **type)
-{
-#ifdef NEXT_OBJC_USE_NEW_INTERFACE
- *type = method_getTypeEncoding((Method)m);
-#else
- *type = m->method_types;
-#endif
-
- return method_get_next_argument (argframe, type);
-}
-
-/*
- Return a pointer to the ARGth argument of the method
- M from the frame ARGFRAME. The type of the argument
- is returned in the value-result argument TYPE
-*/
-
-char *
-method_get_nth_argument (PMETH m,
- arglist_t argframe, int arg,
- const char **type)
-{
-#ifdef NEXT_OBJC_USE_NEW_INTERFACE
- const char *t = objc_skip_argspec (method_getTypeEncoding((Method)m));
-#else
- const char *t = objc_skip_argspec (m->method_types);
-#endif
-
- if (arg > method_get_number_of_arguments (m))
- return 0;
-
- while (arg--)
- t = objc_skip_argspec (t);
-
- *type = t;
- t = objc_skip_typespec (t);
-
- if (*t == '+')
- return argframe->arg_regs + atoi (++t);
- else
- return argframe->arg_ptr + atoi (t);
-}
-
-unsigned
-objc_get_type_qualifiers (const char *type)
-{
- unsigned res = 0;
- BOOL flag = YES;
-
- while (flag)
- switch (*type++)
- {
- case _C_CONST: res |= _F_CONST; break;
- case _C_IN: res |= _F_IN; break;
- case _C_INOUT: res |= _F_INOUT; break;
- case _C_OUT: res |= _F_OUT; break;
- case _C_BYCOPY: res |= _F_BYCOPY; break;
- case _C_BYREF: res |= _F_BYREF; break;
- case _C_ONEWAY: res |= _F_ONEWAY; break;
- case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
- default: flag = NO;
- }
-
- return res;
-}
-
-
-/* The following three functions can be used to determine how a
- structure is laid out by the compiler. For example:
-
- struct objc_struct_layout layout;
- int i;
-
- objc_layout_structure (type, &layout);
- while (objc_layout_structure_next_member (&layout))
- {
- int position, align;
- const char *type;
-
- objc_layout_structure_get_info (&layout, &position, &align, &type);
- printf ("element %d has offset %d, alignment %d\n",
- i++, position, align);
- }
-
- These functions are used by objc_sizeof_type and objc_alignof_type
- functions to compute the size and alignment of structures. The
- previous method of computing the size and alignment of a structure
- was not working on some architectures, particulary on AIX, and in
- the presence of bitfields inside the structure. */
-void
-objc_layout_structure (const char *type,
- struct objc_struct_layout *layout)
-{
- const char *ntype;
-
- layout->original_type = ++type;
-
- /* Skip "<name>=" if any. Avoid embedded structures and unions. */
- ntype = type;
- while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
- && *ntype++ != '=')
- /* do nothing */;
-
- /* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
- if (*(ntype - 1) == '=')
- type = ntype;
-
- layout->type = type;
- layout->prev_type = NULL;
- layout->record_size = 0;
- layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
-}
-
-
-BOOL
-objc_layout_structure_next_member (struct objc_struct_layout *layout)
-{
- register int desired_align = 0;
-
- /* The current type without the type qualifiers */
- const char *type;
-
- /* Add the size of the previous field to the size of the record. */
- if (layout->prev_type)
- {
- type = objc_skip_type_qualifiers (layout->prev_type);
-
- if (*type != _C_BFLD)
- layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
- else
- layout->record_size += atoi (++type);
- }
-
- if (*layout->type == _C_STRUCT_E)
- return NO;
-
- /* Skip the variable name if any */
- if (*layout->type == '"')
- {
- for (layout->type++; *layout->type++ != '"';)
- /* do nothing */;
- }
-
- type = objc_skip_type_qualifiers (layout->type);
-
- desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
-
- /* Record must have at least as much alignment as any field.
- Otherwise, the alignment of the field within the record
- is meaningless. */
- layout->record_align = MAX (layout->record_align, desired_align);
-
- if (*type == _C_BFLD)
- {
- int bfld_size = atoi (++type);
- int int_align = __alignof__ (int) * BITS_PER_UNIT;
- /* If this bitfield would traverse a word alignment boundary, push it out
- to that boundary instead. */
- if (layout->record_size % int_align
- && (layout->record_size / int_align
- < (layout->record_size + bfld_size - 1) / int_align))
- layout->record_size = ROUND (layout->record_size, int_align);
- }
- else if (layout->record_size % desired_align != 0)
- {
- /* We need to skip space before this field.
- Bump the cumulative size to multiple of field alignment. */
- layout->record_size = ROUND (layout->record_size, desired_align);
- }
-
- /* Jump to the next field in record. */
-
- layout->prev_type = layout->type;
- layout->type = objc_skip_typespec (layout->type); /* skip component */
-
- return YES;
-}
-
-
-void objc_layout_finish_structure (struct objc_struct_layout *layout,
- unsigned int *size,
- unsigned int *align)
-{
- if (layout->type && *layout->type == _C_STRUCT_E)
- {
- /* Round the size up to be a multiple of the required alignment */
- layout->record_size = ROUND (layout->record_size, layout->record_align);
- layout->type = NULL;
- }
- if (size)
- *size = layout->record_size / BITS_PER_UNIT;
- if (align)
- *align = layout->record_align / BITS_PER_UNIT;
-}
-
-
-void objc_layout_structure_get_info (struct objc_struct_layout *layout,
- unsigned int *offset,
- unsigned int *align,
- const char **type)
-{
- if (offset)
- *offset = layout->record_size / BITS_PER_UNIT;
- if (align)
- *align = layout->record_align / BITS_PER_UNIT;
- if (type)
- *type = layout->prev_type;
-}
/* A small, portable NSConstantString implementation for use with the NeXT
runtime.
@@ -983,4 +153,5 @@ void objc_constant_string_init (void) {
sizeof (_NSConstantStringClassReference));
}
-#endif /* #ifdef __NEXT_RUNTIME__ */
+#endif /*__NEXT_RUNTIME__ */
+#endif /* _OBJC_NEXT_MAPPING_H_ */ \ No newline at end of file