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lxdream.org :: lxdream/src/x86dasm/ansidecl.h
lxdream 0.9.1
released Jun 29
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filename src/x86dasm/ansidecl.h
changeset 362:dc40e2064dc4
author nkeynes
date Tue Sep 04 08:32:10 2007 +0000 (14 years ago)
permissions -rw-r--r--
last change Change sh4x86 test to translate/disasm full basic blocks
Add prelim sym-tab support
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     1 /* ANSI and traditional C compatability macros
     2    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
     3    Free Software Foundation, Inc.
     4    This file is part of the GNU C Library.
     6 This program is free software; you can redistribute it and/or modify
     7 it under the terms of the GNU General Public License as published by
     8 the Free Software Foundation; either version 2 of the License, or
     9 (at your option) any later version.
    11 This program is distributed in the hope that it will be useful,
    12 but WITHOUT ANY WARRANTY; without even the implied warranty of
    13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14 GNU General Public License for more details.
    16 You should have received a copy of the GNU General Public License
    17 along with this program; if not, write to the Free Software
    18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
    20 /* ANSI and traditional C compatibility macros
    22    ANSI C is assumed if __STDC__ is #defined.
    24    Macro		ANSI C definition	Traditional C definition
    25    -----		---- - ----------	----------- - ----------
    26    ANSI_PROTOTYPES	1			not defined
    27    PTR			`void *'		`char *'
    28    PTRCONST		`void *const'		`char *'
    29    LONG_DOUBLE		`long double'		`double'
    30    const		not defined		`'
    31    volatile		not defined		`'
    32    signed		not defined		`'
    33    VA_START(ap, var)	va_start(ap, var)	va_start(ap)
    35    Note that it is safe to write "void foo();" indicating a function
    36    with no return value, in all K+R compilers we have been able to test.
    38    For declaring functions with prototypes, we also provide these:
    40    PARAMS ((prototype))
    41    -- for functions which take a fixed number of arguments.  Use this
    42    when declaring the function.  When defining the function, write a
    43    K+R style argument list.  For example:
    45 	char *strcpy PARAMS ((char *dest, char *source));
    46 	...
    47 	char *
    48 	strcpy (dest, source)
    49 	     char *dest;
    50 	     char *source;
    51 	{ ... }
    54    VPARAMS ((prototype, ...))
    55    -- for functions which take a variable number of arguments.  Use
    56    PARAMS to declare the function, VPARAMS to define it.  For example:
    58 	int printf PARAMS ((const char *format, ...));
    59 	...
    60 	int
    61 	printf VPARAMS ((const char *format, ...))
    62 	{
    63 	   ...
    64 	}
    66    For writing functions which take variable numbers of arguments, we
    67    also provide the VA_OPEN, VA_CLOSE, and VA_FIXEDARG macros.  These
    68    hide the differences between K+R <varargs.h> and C89 <stdarg.h> more
    69    thoroughly than the simple VA_START() macro mentioned above.
    71    VA_OPEN and VA_CLOSE are used *instead of* va_start and va_end.
    72    Immediately after VA_OPEN, put a sequence of VA_FIXEDARG calls
    73    corresponding to the list of fixed arguments.  Then use va_arg
    74    normally to get the variable arguments, or pass your va_list object
    75    around.  You do not declare the va_list yourself; VA_OPEN does it
    76    for you.
    78    Here is a complete example:
    80 	int
    81 	printf VPARAMS ((const char *format, ...))
    82 	{
    83 	   int result;
    85 	   VA_OPEN (ap, format);
    86 	   VA_FIXEDARG (ap, const char *, format);
    88 	   result = vfprintf (stdout, format, ap);
    89 	   VA_CLOSE (ap);
    91 	   return result;
    92 	}
    95    You can declare variables either before or after the VA_OPEN,
    96    VA_FIXEDARG sequence.  Also, VA_OPEN and VA_CLOSE are the beginning
    97    and end of a block.  They must appear at the same nesting level,
    98    and any variables declared after VA_OPEN go out of scope at
    99    VA_CLOSE.  Unfortunately, with a K+R compiler, that includes the
   100    argument list.  You can have multiple instances of VA_OPEN/VA_CLOSE
   101    pairs in a single function in case you need to traverse the
   102    argument list more than once.
   104    For ease of writing code which uses GCC extensions but needs to be
   105    portable to other compilers, we provide the GCC_VERSION macro that
   106    simplifies testing __GNUC__ and __GNUC_MINOR__ together, and various
   107    wrappers around __attribute__.  Also, __extension__ will be #defined
   108    to nothing if it doesn't work.  See below.
   110    This header also defines a lot of obsolete macros:
   111    CONST, VOLATILE, SIGNED, PROTO, EXFUN, DEFUN, DEFUN_VOID,
   112    AND, DOTS, NOARGS.  Don't use them.  */
   114 #ifndef	_ANSIDECL_H
   115 #define _ANSIDECL_H	1
   117 /* Every source file includes this file,
   118    so they will all get the switch for lint.  */
   119 /* LINTLIBRARY */
   121 /* Using MACRO(x,y) in cpp #if conditionals does not work with some
   122    older preprocessors.  Thus we can't define something like this:
   124 #define HAVE_GCC_VERSION(MAJOR, MINOR) \
   125   (__GNUC__ > (MAJOR) || (__GNUC__ == (MAJOR) && __GNUC_MINOR__ >= (MINOR)))
   127 and then test "#if HAVE_GCC_VERSION(2,7)".
   129 So instead we use the macro below and test it against specific values.  */
   131 /* This macro simplifies testing whether we are using gcc, and if it
   132    is of a particular minimum version. (Both major & minor numbers are
   133    significant.)  This macro will evaluate to 0 if we are not using
   134    gcc at all.  */
   135 #ifndef GCC_VERSION
   136 #define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
   137 #endif /* GCC_VERSION */
   139 #if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(_WIN32) || (defined(__alpha) && defined(__cplusplus))
   140 /* All known AIX compilers implement these things (but don't always
   141    define __STDC__).  The RISC/OS MIPS compiler defines these things
   142    in SVR4 mode, but does not define __STDC__.  */
   143 /* eraxxon@alumni.rice.edu: The Compaq C++ compiler, unlike many other
   144    C++ compilers, does not define __STDC__, though it acts as if this
   145    was so. (Verified versions: 5.7, 6.2, 6.3, 6.5) */
   147 #define ANSI_PROTOTYPES	1
   148 #define PTR		void *
   149 #define PTRCONST	void *const
   150 #define LONG_DOUBLE	long double
   152 /* PARAMS is often defined elsewhere (e.g. by libintl.h), so wrap it in
   153    a #ifndef.  */
   154 #ifndef PARAMS
   155 #define PARAMS(ARGS)		ARGS
   156 #endif
   158 #define VPARAMS(ARGS)		ARGS
   159 #define VA_START(VA_LIST, VAR)	va_start(VA_LIST, VAR)
   161 /* variadic function helper macros */
   162 /* "struct Qdmy" swallows the semicolon after VA_OPEN/VA_FIXEDARG's
   163    use without inhibiting further decls and without declaring an
   164    actual variable.  */
   165 #define VA_OPEN(AP, VAR)	{ va_list AP; va_start(AP, VAR); { struct Qdmy
   166 #define VA_CLOSE(AP)		} va_end(AP); }
   167 #define VA_FIXEDARG(AP, T, N)	struct Qdmy
   169 #undef const
   170 #undef volatile
   171 #undef signed
   173 /* inline requires special treatment; it's in C99, and GCC >=2.7 supports
   174    it too, but it's not in C89.  */
   175 #undef inline
   176 #if __STDC_VERSION__ > 199901L
   177 /* it's a keyword */
   178 #else
   179 # if GCC_VERSION >= 2007
   180 #  define inline __inline__   /* __inline__ prevents -pedantic warnings */
   181 # else
   182 #  define inline  /* nothing */
   183 # endif
   184 #endif
   186 /* These are obsolete.  Do not use.  */
   187 #ifndef IN_GCC
   188 #define CONST		const
   189 #define VOLATILE	volatile
   190 #define SIGNED		signed
   192 #define PROTO(type, name, arglist)	type name arglist
   193 #define EXFUN(name, proto)		name proto
   194 #define DEFUN(name, arglist, args)	name(args)
   195 #define DEFUN_VOID(name)		name(void)
   196 #define AND		,
   197 #define DOTS		, ...
   198 #define NOARGS		void
   199 #endif /* ! IN_GCC */
   201 #else	/* Not ANSI C.  */
   203 #undef  ANSI_PROTOTYPES
   204 #define PTR		char *
   205 #define PTRCONST	PTR
   206 #define LONG_DOUBLE	double
   208 #define PARAMS(args)		()
   209 #define VPARAMS(args)		(va_alist) va_dcl
   210 #define VA_START(va_list, var)	va_start(va_list)
   212 #define VA_OPEN(AP, VAR)		{ va_list AP; va_start(AP); { struct Qdmy
   213 #define VA_CLOSE(AP)			} va_end(AP); }
   214 #define VA_FIXEDARG(AP, TYPE, NAME)	TYPE NAME = va_arg(AP, TYPE)
   216 /* some systems define these in header files for non-ansi mode */
   217 #undef const
   218 #undef volatile
   219 #undef signed
   220 #undef inline
   221 #define const
   222 #define volatile
   223 #define signed
   224 #define inline
   226 #ifndef IN_GCC
   227 #define CONST
   228 #define VOLATILE
   229 #define SIGNED
   231 #define PROTO(type, name, arglist)	type name ()
   232 #define EXFUN(name, proto)		name()
   233 #define DEFUN(name, arglist, args)	name arglist args;
   234 #define DEFUN_VOID(name)		name()
   235 #define AND		;
   236 #define DOTS
   237 #define NOARGS
   238 #endif /* ! IN_GCC */
   240 #endif	/* ANSI C.  */
   242 /* Define macros for some gcc attributes.  This permits us to use the
   243    macros freely, and know that they will come into play for the
   244    version of gcc in which they are supported.  */
   246 #if (GCC_VERSION < 2007)
   247 # define __attribute__(x)
   248 #endif
   250 /* Attribute __malloc__ on functions was valid as of gcc 2.96. */
   251 #ifndef ATTRIBUTE_MALLOC
   252 # if (GCC_VERSION >= 2096)
   253 #  define ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
   254 # else
   255 #  define ATTRIBUTE_MALLOC
   256 # endif /* GNUC >= 2.96 */
   257 #endif /* ATTRIBUTE_MALLOC */
   259 /* Attributes on labels were valid as of gcc 2.93. */
   260 #ifndef ATTRIBUTE_UNUSED_LABEL
   261 # if (GCC_VERSION >= 2093)
   262 #  define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED
   263 # else
   264 #  define ATTRIBUTE_UNUSED_LABEL
   265 # endif /* GNUC >= 2.93 */
   266 #endif /* ATTRIBUTE_UNUSED_LABEL */
   268 #ifndef ATTRIBUTE_UNUSED
   269 #define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
   270 #endif /* ATTRIBUTE_UNUSED */
   272 /* Before GCC 3.4, the C++ frontend couldn't parse attributes placed after the
   273    identifier name.  */
   274 #if ! defined(__cplusplus) || (GCC_VERSION >= 3004)
   275 # define ARG_UNUSED(NAME) NAME ATTRIBUTE_UNUSED
   276 #else /* !__cplusplus || GNUC >= 3.4 */
   277 # define ARG_UNUSED(NAME) NAME
   278 #endif /* !__cplusplus || GNUC >= 3.4 */
   280 #ifndef ATTRIBUTE_NORETURN
   281 #define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
   282 #endif /* ATTRIBUTE_NORETURN */
   284 /* Attribute `nonnull' was valid as of gcc 3.3.  */
   285 #ifndef ATTRIBUTE_NONNULL
   286 # if (GCC_VERSION >= 3003)
   287 #  define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
   288 # else
   289 #  define ATTRIBUTE_NONNULL(m)
   290 # endif /* GNUC >= 3.3 */
   291 #endif /* ATTRIBUTE_NONNULL */
   293 /* Attribute `pure' was valid as of gcc 3.0.  */
   294 #ifndef ATTRIBUTE_PURE
   295 # if (GCC_VERSION >= 3000)
   296 #  define ATTRIBUTE_PURE __attribute__ ((__pure__))
   297 # else
   298 #  define ATTRIBUTE_PURE
   299 # endif /* GNUC >= 3.0 */
   300 #endif /* ATTRIBUTE_PURE */
   302 /* Use ATTRIBUTE_PRINTF when the format specifier must not be NULL.
   303    This was the case for the `printf' format attribute by itself
   304    before GCC 3.3, but as of 3.3 we need to add the `nonnull'
   305    attribute to retain this behavior.  */
   306 #ifndef ATTRIBUTE_PRINTF
   307 #define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n))) ATTRIBUTE_NONNULL(m)
   308 #define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
   309 #define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
   310 #define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
   311 #define ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF(4, 5)
   312 #define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
   313 #endif /* ATTRIBUTE_PRINTF */
   315 /* Use ATTRIBUTE_NULL_PRINTF when the format specifier may be NULL.  A
   316    NULL format specifier was allowed as of gcc 3.3.  */
   317 #ifndef ATTRIBUTE_NULL_PRINTF
   318 # if (GCC_VERSION >= 3003)
   319 #  define ATTRIBUTE_NULL_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n)))
   320 # else
   321 #  define ATTRIBUTE_NULL_PRINTF(m, n)
   322 # endif /* GNUC >= 3.3 */
   323 # define ATTRIBUTE_NULL_PRINTF_1 ATTRIBUTE_NULL_PRINTF(1, 2)
   324 # define ATTRIBUTE_NULL_PRINTF_2 ATTRIBUTE_NULL_PRINTF(2, 3)
   325 # define ATTRIBUTE_NULL_PRINTF_3 ATTRIBUTE_NULL_PRINTF(3, 4)
   326 # define ATTRIBUTE_NULL_PRINTF_4 ATTRIBUTE_NULL_PRINTF(4, 5)
   327 # define ATTRIBUTE_NULL_PRINTF_5 ATTRIBUTE_NULL_PRINTF(5, 6)
   328 #endif /* ATTRIBUTE_NULL_PRINTF */
   330 /* Attribute `sentinel' was valid as of gcc 3.5.  */
   331 #ifndef ATTRIBUTE_SENTINEL
   332 # if (GCC_VERSION >= 3005)
   333 #  define ATTRIBUTE_SENTINEL __attribute__ ((__sentinel__))
   334 # else
   335 #  define ATTRIBUTE_SENTINEL
   336 # endif /* GNUC >= 3.5 */
   337 #endif /* ATTRIBUTE_SENTINEL */
   339 /* We use __extension__ in some places to suppress -pedantic warnings
   340    about GCC extensions.  This feature didn't work properly before
   341    gcc 2.8.  */
   342 #if GCC_VERSION < 2008
   343 #define __extension__
   344 #endif
   346 #endif	/* ansidecl.h	*/
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