-/* system.h - Get common system includes and various definitions and
- declarations based on autoconf macros.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+/* Get common system includes and various definitions and declarations based
+ on autoconf macros.
+ Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC.
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+
#ifndef __GCC_SYSTEM_H__
#define __GCC_SYSTEM_H__
+/* This is the location of the online document giving information how
+ to report bugs. If you change this string, also check for strings
+ not under control of the preprocessor. */
+#define GCCBUGURL "<URL:http://www.gnu.org/software/gcc/bugs.html>"
+
/* We must include stdarg.h/varargs.h before stdio.h. */
#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
#include <varargs.h>
#endif
+#ifndef va_copy
+# ifdef __va_copy
+# define va_copy(d,s) __va_copy((d),(s))
+# else
+# define va_copy(d,s) ((d) = (s))
+# endif
+#endif
+
+#ifdef HAVE_STDDEF_H
+# include <stddef.h>
+#endif
+
#include <stdio.h>
/* Define a generic NULL if one hasn't already been defined. */
/* The compiler is not a multi-threaded application and therefore we
do not have to use the locking functions.
- NEED_DECLARATION_PUTC_UNLOCKED actually indicates whether or not
- the IO code is multi-thread safe by default. If it is not declared,
- then do not worry about using the _unlocked functions.
+ HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the IO
+ code is multi-thread safe by default. If it is set to 0, then do
+ not worry about using the _unlocked functions.
fputs_unlocked is an extension and needs to be prototyped specially. */
-#if defined HAVE_PUTC_UNLOCKED && !defined NEED_DECLARATION_PUTC_UNLOCKED
+#if defined HAVE_PUTC_UNLOCKED && (defined (HAVE_DECL_PUTC_UNLOCKED) && HAVE_DECL_PUTC_UNLOCKED)
# undef putc
# define putc(C, Stream) putc_unlocked (C, Stream)
#endif
-#if defined HAVE_FPUTC_UNLOCKED && !defined NEED_DECLARATION_PUTC_UNLOCKED
+#if defined HAVE_FPUTC_UNLOCKED && (defined (HAVE_DECL_PUTC_UNLOCKED) && HAVE_DECL_PUTC_UNLOCKED)
# undef fputc
# define fputc(C, Stream) fputc_unlocked (C, Stream)
#endif
-#if defined HAVE_FPUTS_UNLOCKED && !defined NEED_DECLARATION_PUTC_UNLOCKED
+#if defined HAVE_FPUTS_UNLOCKED && (defined (HAVE_DECL_PUTC_UNLOCKED) && HAVE_DECL_PUTC_UNLOCKED)
# undef fputs
# define fputs(String, Stream) fputs_unlocked (String, Stream)
-# ifdef NEED_DECLARATION_FPUTS_UNLOCKED
-extern int fputs_unlocked PROTO ((const char *, FILE *));
+# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
+extern int fputs_unlocked PARAMS ((const char *, FILE *));
# endif
#endif
-#include <ctype.h>
-
-/* Jim Meyering writes:
-
- "... Some ctype macros are valid only for character codes that
- isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
- using /bin/cc or gcc but without giving an ansi option). So, all
- ctype uses should be through macros like ISPRINT... If
- STDC_HEADERS is defined, then autoconf has verified that the ctype
- macros don't need to be guarded with references to isascii. ...
- Defining isascii to 1 should let any compiler worth its salt
- eliminate the && through constant folding."
-
- Bruno Haible adds:
-
- "... Furthermore, isupper(c) etc. have an undefined result if c is
- outside the range -1 <= c <= 255. One is tempted to write isupper(c)
- with c being of type `char', but this is wrong if c is an 8-bit
- character >= 128 which gets sign-extended to a negative value.
- The macro ISUPPER protects against this as well." */
+/* There are an extraordinary number of issues with <ctype.h>.
+ The last straw is that it varies with the locale. Use libiberty's
+ replacement instead. */
+#include <safe-ctype.h>
-#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
-# define IN_CTYPE_DOMAIN(c) 1
-#else
-# define IN_CTYPE_DOMAIN(c) isascii(c)
-#endif
-
-#ifdef isblank
-# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c))
-#else
-# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+/* Define a default escape character; it's different for EBCDIC. */
+#ifndef TARGET_ESC
+#define TARGET_ESC 033
#endif
-#ifdef isgraph
-# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c))
-#else
-# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c))
-#endif
-
-#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
-#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
-#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
-#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
-#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
-#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c))
-#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
-#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
-#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
-#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
-
-/* ISDIGIT differs from ISDIGIT_LOCALE, as follows:
- - Its arg may be any int or unsigned int; it need not be an unsigned char.
- - It's guaranteed to evaluate its argument exactly once.
- - It's typically faster.
- Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
- only '0' through '9' are digits. Prefer ISDIGIT to ISDIGIT_LOCALE unless
- it's important to use the locale's definition of `digit' even when the
- host does not conform to Posix. */
-#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
-
#include <sys/types.h>
+
#include <errno.h>
#ifndef errno
# include <stdlib.h>
#endif
+/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
+ FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
+ or 0 and 1 if those macros are not defined. */
+#ifndef SUCCESS_EXIT_CODE
+# ifdef EXIT_SUCCESS
+# define SUCCESS_EXIT_CODE EXIT_SUCCESS
+# else
+# define SUCCESS_EXIT_CODE 0
+# endif
+#endif
+
+#ifndef FATAL_EXIT_CODE
+# ifdef EXIT_FAILURE
+# define FATAL_EXIT_CODE EXIT_FAILURE
+# else
+# define FATAL_EXIT_CODE 1
+# endif
+#endif
+
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
# endif /* defined(HOST_BITS_PER_LONG) && defined(HOST_BITS_PER_LONGLONG) */
#endif /* ! HOST_WIDEST_INT */
+/* Infrastructure for defining missing _MAX and _MIN macros. Note that
+ macros defined with these cannot be used in #if. */
+
+/* The extra casts work around common compiler bugs. */
+#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
+ It is necessary at least when t == time_t. */
+#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
+ ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
+#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
+
+/* Use that infrastructure to provide a few constants. */
+#ifndef UCHAR_MAX
+# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
+#endif
+
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
+/* Returns the least number N such that N * Y >= X. */
+#define CEIL(x,y) (((x) + (y) - 1) / (y))
+
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#define WSTOPSIG WEXITSTATUS
#endif
-
+/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
+ are defined to 0 then we must provide the relevant declaration
+ here. These checks will be in the undefined state while configure
+ is running so be careful to test "defined (HAVE_DECL_*)". */
#ifndef bcopy
# ifdef HAVE_BCOPY
-# ifdef NEED_DECLARATION_BCOPY
-extern void bcopy ();
+# if defined (HAVE_DECL_BCOPY) && !HAVE_DECL_BCOPY
+extern void bcopy PARAMS ((const PTR, PTR, size_t));
# endif
# else /* ! HAVE_BCOPY */
# define bcopy(src,dst,len) memmove((dst),(src),(len))
# endif
#endif
-#ifndef bcmp
-# ifdef HAVE_BCMP
-# ifdef NEED_DECLARATION_BCMP
-extern int bcmp ();
-# endif
-# else /* ! HAVE_BCMP */
-# define bcmp(left,right,len) memcmp ((left),(right),(len))
-# endif
+#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
+extern double atof PARAMS ((const char *));
#endif
-#ifndef bzero
-# ifdef HAVE_BZERO
-# ifdef NEED_DECLARATION_BZERO
-extern void bzero ();
-# endif
-# else /* ! HAVE_BZERO */
-# define bzero(dst,len) memset ((dst),0,(len))
-# endif
+#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
+extern long atol PARAMS ((const char *));
#endif
-#ifndef index
-# ifdef HAVE_INDEX
-# ifdef NEED_DECLARATION_INDEX
-extern char *index ();
-# endif
-# else /* ! HAVE_INDEX */
-# define index strchr
-# endif
+#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
+extern void free PARAMS ((PTR));
#endif
-#ifndef rindex
-# ifdef HAVE_RINDEX
-# ifdef NEED_DECLARATION_RINDEX
-extern char *rindex ();
-# endif
-# else /* ! HAVE_RINDEX */
-# define rindex strrchr
-# endif
+#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
+extern char *getcwd PARAMS ((char *, size_t));
#endif
-#ifdef NEED_DECLARATION_ATOF
-extern double atof ();
+#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
+extern char *getenv PARAMS ((const char *));
#endif
-#ifdef NEED_DECLARATION_ATOL
-extern long atol();
+#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
+extern int getopt PARAMS ((int, char * const *, const char *));
#endif
-#ifdef NEED_DECLARATION_FREE
-extern void free ();
+#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
+extern char *getwd PARAMS ((char *));
#endif
-#ifdef NEED_DECLARATION_GETCWD
-extern char *getcwd ();
+#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
+extern PTR sbrk PARAMS ((int));
#endif
-#ifdef NEED_DECLARATION_GETENV
-extern char *getenv ();
+#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
+extern char *strstr PARAMS ((const char *, const char *));
#endif
-#ifdef NEED_DECLARATION_GETWD
-extern char *getwd ();
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
#endif
-#ifdef NEED_DECLARATION_SBRK
-extern char *sbrk ();
+#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
+extern PTR malloc PARAMS ((size_t));
#endif
-#ifdef NEED_DECLARATION_STRSTR
-extern char *strstr ();
+#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
+extern PTR calloc PARAMS ((size_t, size_t));
#endif
-#ifdef HAVE_STRERROR
-# ifdef NEED_DECLARATION_STRERROR
-# ifndef strerror
-extern char *strerror ();
-# endif
-# endif
-#else /* ! HAVE_STRERROR */
-extern int sys_nerr;
-extern char *sys_errlist[];
-#endif /* HAVE_STRERROR */
-
-#ifdef HAVE_STRSIGNAL
-# ifdef NEED_DECLARATION_STRSIGNAL
-# ifndef strsignal
-extern char * strsignal ();
-# endif
-# endif
-#else /* ! HAVE_STRSIGNAL */
-# ifndef SYS_SIGLIST_DECLARED
-# ifndef NO_SYS_SIGLIST
-extern char * sys_siglist[];
-# endif
+#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
+extern PTR realloc PARAMS ((PTR, size_t));
+#endif
+
+/* If the system doesn't provide strsignal, we get it defined in
+ libiberty but no declaration is supplied. */
+#ifndef HAVE_STRSIGNAL
+# ifndef strsignal
+extern const char *strsignal PARAMS ((int));
# endif
-#endif /* HAVE_STRSIGNAL */
+#endif
#ifdef HAVE_GETRLIMIT
-# ifdef NEED_DECLARATION_GETRLIMIT
+# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
# ifndef getrlimit
-extern int getrlimit ();
+# ifdef ANSI_PROTOTYPES
+struct rlimit;
+# endif
+extern int getrlimit PARAMS ((int, struct rlimit *));
# endif
# endif
#endif
#ifdef HAVE_SETRLIMIT
-# ifdef NEED_DECLARATION_SETRLIMIT
+# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
# ifndef setrlimit
-extern int setrlimit ();
+# ifdef ANSI_PROTOTYPES
+struct rlimit;
+# endif
+extern int setrlimit PARAMS ((int, const struct rlimit *));
# endif
# endif
#endif
#define volatile
#endif
-#ifdef NEED_DECLARATION_ABORT
-extern void abort ();
+#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
+extern void abort PARAMS ((void));
#endif
-/* Define a STRINGIFY macro that's right for ANSI or traditional C.
- HAVE_CPP_STRINGIFY only refers to the stage1 compiler. Assume that
- (non-traditional) gcc used in stage2 or later has this feature.
+/* 1 if we have C99 designated initializers. */
+#if !defined(HAVE_DESIGNATED_INITIALIZERS)
+#define HAVE_DESIGNATED_INITIALIZERS \
+ ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
+#endif
+
+/* 1 if we have _Bool. */
+#ifndef HAVE__BOOL
+# define HAVE__BOOL \
+ ((GCC_VERSION >= 3000) || (__STDC_VERSION__ >= 199901L))
+#endif
+
+
+/* Define a STRINGIFY macro that's right for ANSI or traditional C.
Note: if the argument passed to STRINGIFY is itself a macro, eg
#define foo bar, STRINGIFY(foo) will produce "foo", not "bar".
Although the __STDC__ case could be made to expand this via a layer
of indirection, the traditional C case can not do so. Therefore
this behavior is not supported. */
#ifndef STRINGIFY
-# if defined(HAVE_CPP_STRINGIFY) || (defined(__GNUC__) && defined(__STDC__))
+# ifdef HAVE_STRINGIZE
# define STRINGIFY(STRING) #STRING
# else
# define STRINGIFY(STRING) "STRING"
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#endif
+/* Test if something is a block special file. */
+#ifndef S_ISBLK
+#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+#endif
+
/* Test if something is a socket. */
#ifndef S_ISSOCK
# ifdef S_IFSOCK
# define mkdir(a,b) mkdir(a)
#endif
+/* Provide a way to print an address via printf. */
+#ifndef HOST_PTR_PRINTF
+# ifdef HAVE_PRINTF_PTR
+# define HOST_PTR_PRINTF "%p"
+# else
+# define HOST_PTR_PRINTF \
+ (sizeof (int) == sizeof (char *) ? "%x" \
+ : sizeof (long) == sizeof (char *) ? "%lx" : "%llx")
+# endif
+#endif /* ! HOST_PTR_PRINTF */
+
+/* By default, colon separates directories in a path. */
+#ifndef PATH_SEPARATOR
+#define PATH_SEPARATOR ':'
+#endif
+
+#ifndef DIR_SEPARATOR
+#define DIR_SEPARATOR '/'
+#endif
+
+/* Define IS_DIR_SEPARATOR. */
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(CH) ((CH) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(CH) \
+ (((CH) == DIR_SEPARATOR) || ((CH) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+/* Say how to test for an absolute pathname. On Unix systems, this is if
+ it starts with a leading slash or a '$', the latter meaning the value of
+ an environment variable is to be used. On machien with DOS-based
+ file systems, it is also absolute if it starts with a drive identifier. */
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+#define IS_ABSOLUTE_PATHNAME(STR) \
+ (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$' \
+ || ((STR)[0] != '\0' && (STR)[1] == ':' && IS_DIR_SEPARATOR ((STR)[2])))
+#else
+#define IS_ABSOLUTE_PATHNAME(STR) \
+ (IS_DIR_SEPARATOR ((STR)[0]) || (STR)[0] == '$')
+#endif
+
/* Get libiberty declarations. */
#include "libiberty.h"
+/* Make sure that ONLY_INT_FIELDS has an integral value. */
+#ifdef ONLY_INT_FIELDS
+#undef ONLY_INT_FIELDS
+#define ONLY_INT_FIELDS 1
+#else
+#define ONLY_INT_FIELDS 0
+#endif
+
+/* Provide a default for the HOST_BIT_BUCKET.
+ This suffices for POSIX-like hosts. */
+
+#ifndef HOST_BIT_BUCKET
+#define HOST_BIT_BUCKET "/dev/null"
+#endif
+
+/* Enumerated bitfields are safe to use unless we've been explictly told
+ otherwise or if they are signed. */
+
+#define USE_ENUM_BITFIELDS (__GNUC__ || (!ONLY_INT_FIELDS && ENUM_BITFIELDS_ARE_UNSIGNED))
+
+#if USE_ENUM_BITFIELDS
+#define ENUM_BITFIELD(TYPE) enum TYPE
+#else
+#define ENUM_BITFIELD(TYPE) unsigned int
+#endif
+
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
+/* Traditional C cannot initialize union members of structs. Provide
+ a macro which expands appropriately to handle it. This only works
+ if you intend to initalize the union member to zero since it relies
+ on default initialization to zero in the traditional C case. */
+#ifdef __STDC__
+#define UNION_INIT_ZERO , {0}
+#else
+#define UNION_INIT_ZERO
+#endif
+
+/* Various error reporting routines want to use __FUNCTION__. */
+#if (GCC_VERSION < 2007)
+#ifndef __FUNCTION__
+#define __FUNCTION__ "?"
+#endif /* ! __FUNCTION__ */
+#endif
+
+/* Provide some sort of boolean type. We use stdbool.h if it's
+ available. This is dead last because various system headers might
+ mess us up. */
+#undef bool
+#undef true
+#undef false
+#undef TRUE
+#undef FALSE
+
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# if !HAVE__BOOL
+typedef char _Bool;
+# endif
+# define bool _Bool
+# define true 1
+# define false 0
+#endif
+
+#define TRUE true
+#define FALSE false
+
#endif /* __GCC_SYSTEM_H__ */
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