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-rw-r--r--contrib/gcc/objc/encoding.c554
1 files changed, 0 insertions, 554 deletions
diff --git a/contrib/gcc/objc/encoding.c b/contrib/gcc/objc/encoding.c
deleted file mode 100644
index e6f84aa04a4f..000000000000
--- a/contrib/gcc/objc/encoding.c
+++ /dev/null
@@ -1,554 +0,0 @@
-/* Encoding of types for Objective C.
- Copyright (C) 1993, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
- Contributed by Kresten Krab Thorup
-
-This file is part of GNU CC.
-
-GNU CC 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)
-any later version.
-
-GNU CC 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. */
-
-/* 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. */
-
-#include "encoding.h"
-
-#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); })
-
-
-static inline int
-atoi (const char* str)
-{
- int res = 0;
-
- while (isdigit (*str))
- res *= 10, res += (*str++ - '0');
-
- return res;
-}
-
-/*
- return the size of an object specified by type
-*/
-
-int
-objc_sizeof_type(const char* type)
-{
- 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_FLT:
- return sizeof(float);
- break;
-
- case _C_DBL:
- return sizeof(double);
- break;
-
- case _C_VOID:
- return sizeof(void);
- 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(*++type));
- return len*objc_aligned_size (type);
- }
- break;
-
- case _C_STRUCT_B:
- {
- int acc_size = 0;
- int align;
- while (*type != _C_STRUCT_E && *type++ != '='); /* skip "<name>=" */
- while (*type != _C_STRUCT_E)
- {
- align = objc_alignof_type (type); /* padd to alignment */
- acc_size = ROUND (acc_size, align);
- acc_size += objc_sizeof_type (type); /* add component size */
- type = objc_skip_typespec (type); /* skip component */
- }
- return acc_size;
- }
-
- case _C_UNION_B:
- {
- int max_size = 0;
- while (*type != _C_UNION_E && *type++ != '=') /* do nothing */;
- while (*type != _C_UNION_E)
- {
- max_size = MAX (max_size, objc_sizeof_type (type));
- type = objc_skip_typespec (type);
- }
- return max_size;
- }
-
- default:
- {
- objc_error(nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type);
- return 0;
- }
- }
-}
-
-
-/*
- Return the alignment of an object specified by type
-*/
-
-int
-objc_alignof_type(const char* type)
-{
- 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:
- 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_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(*++type)) /* do nothing */;
- return objc_alignof_type (type);
-
- case _C_STRUCT_B:
- {
- struct { int x; double y; } fooalign;
- while(*type != _C_STRUCT_E && *type++ != '=') /* do nothing */;
- if (*type != _C_STRUCT_E)
- return MAX (objc_alignof_type (type), __alignof__ (fooalign));
- else
- return __alignof__ (fooalign);
- }
-
- case _C_UNION_B:
- {
- int maxalign = 0;
- while (*type != _C_UNION_E && *type++ != '=') /* do nothing */;
- while (*type != _C_UNION_E)
- {
- maxalign = MAX (maxalign, objc_alignof_type (type));
- type = objc_skip_typespec (type);
- }
- return maxalign;
- }
-
- default:
- {
- objc_error(nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type);
- return 0;
- }
- }
-}
-
-/*
- The aligned size if the size rounded up to the nearest alignment.
-*/
-
-int
-objc_aligned_size (const char* type)
-{
- int size = objc_sizeof_type (type);
- int 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 = objc_sizeof_type (type);
- int 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_ONEWAY)
- {
- 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)
-{
- 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_FLT:
- case _C_DBL:
- case _C_VOID:
- case _C_UNDEF:
- return ++type;
- break;
-
- case _C_ARY_B:
- /* skip digits, typespec and closing ']' */
-
- while(isdigit(*++type));
- type = objc_skip_typespec(type);
- if (*type == _C_ARY_E)
- return ++type;
- else
- {
- objc_error(nil, OBJC_ERR_BAD_TYPE, "bad array type %s\n", type);
- return 0;
- }
-
- 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);
-
- default:
- {
- objc_error(nil, OBJC_ERR_BAD_TYPE, "unknown type %s\n", type);
- return 0;
- }
- }
-}
-
-/*
- 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(*++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;
-}
-
-/*
- 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 (struct objc_method* mth)
-{
- int i = 0;
- const char* type = mth->method_types;
- 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 (struct objc_method* mth)
-{
- const char* type = objc_skip_typespec (mth->method_types);
- 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 (struct objc_method* m,
- arglist_t argframe,
- const char** type)
-{
- *type = m->method_types;
- 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 (struct objc_method* m,
- arglist_t argframe, int arg,
- const char **type)
-{
- const char* t = objc_skip_argspec (m->method_types);
-
- 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_ONEWAY: res |= _F_ONEWAY; break;
- default: flag = NO;
- }
-
- return res;
-}
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