/* system.h - Get common system includes and various definitions and declarations based on autoconf macros. Copyright (C) 1998, 1999 Free Software Foundation, Inc. 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. */ #ifndef __GCC_SYSTEM_H__ #define __GCC_SYSTEM_H__ /* We must include stdarg.h/varargs.h before stdio.h. */ #ifdef ANSI_PROTOTYPES #include #else #include #endif #include /* Define a generic NULL if one hasn't already been defined. */ #ifndef NULL #define NULL 0 #endif #include /* 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." */ #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') #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 #include #ifndef errno extern int errno; #endif #ifdef STRING_WITH_STRINGS # include # include #else # ifdef HAVE_STRING_H # include # else # ifdef HAVE_STRINGS_H # include # endif # endif #endif #ifdef HAVE_STDLIB_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_SYS_PARAM_H # include #endif #if HAVE_LIMITS_H # include #endif #ifdef TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # ifdef HAVE_TIME_H # include # endif # endif #endif #ifdef HAVE_FCNTL_H # include #else # ifdef HAVE_SYS_FILE_H # include # endif #endif #ifndef SEEK_SET # define SEEK_SET 0 # define SEEK_CUR 1 # define SEEK_END 2 #endif #ifndef F_OK # define F_OK 0 # define X_OK 1 # define W_OK 2 # define R_OK 4 #endif #ifndef O_RDONLY # define O_RDONLY 0 #endif #ifndef O_WRONLY # define O_WRONLY 1 #endif /* Some systems define these in, e.g., param.h. We undefine these names here to avoid the warnings. We prefer to use our definitions since we know they are correct. */ #undef MIN #undef MAX #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) #ifndef WIFSIGNALED #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f) #endif #ifndef WTERMSIG #define WTERMSIG(S) ((S) & 0x7f) #endif #ifndef WIFEXITED #define WIFEXITED(S) (((S) & 0xff) == 0) #endif #ifndef WEXITSTATUS #define WEXITSTATUS(S) (((S) & 0xff00) >> 8) #endif #ifndef bcopy # ifdef HAVE_BCOPY # ifdef NEED_DECLARATION_BCOPY extern void bcopy (); # endif # else /* ! HAVE_BCOPY */ # define bcopy(src,dst,len) memcpy ((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 #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 #endif #ifndef index # ifdef HAVE_INDEX # ifdef NEED_DECLARATION_INDEX extern char *index (); # endif # else /* ! HAVE_INDEX */ # define index strchr # endif #endif #ifndef rindex # ifdef HAVE_RINDEX # ifdef NEED_DECLARATION_RINDEX extern char *rindex (); # endif # else /* ! HAVE_RINDEX */ # define rindex strrchr # endif #endif #ifdef NEED_DECLARATION_ATOF extern double atof (); #endif #ifdef NEED_DECLARATION_ATOL extern long atol(); #endif #ifdef NEED_DECLARATION_FREE extern void free (); #endif #ifdef NEED_DECLARATION_GETCWD extern char *getcwd (); #endif #ifdef NEED_DECLARATION_GETENV extern char *getenv (); #endif #ifdef NEED_DECLARATION_GETWD extern char *getwd (); #endif #ifdef NEED_DECLARATION_SBRK extern char *sbrk (); #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 # endif #endif /* HAVE_STRSIGNAL */ #ifdef HAVE_GETRLIMIT # ifdef NEED_DECLARATION_GETRLIMIT # ifndef getrlimit extern int getrlimit (); # endif # endif #endif #ifdef HAVE_SETRLIMIT # ifdef NEED_DECLARATION_SETRLIMIT # ifndef setrlimit extern int setrlimit (); # endif # endif #endif /* HAVE_VOLATILE only refers to the stage1 compiler. We also check __STDC__ and assume gcc sets it and has volatile in stage >=2. */ #if !defined(HAVE_VOLATILE) && !defined(__STDC__) && !defined(volatile) #define volatile #endif /* Redefine abort to report an internal error w/o coredump, and reporting the location of the error in the source file. */ #ifndef abort #ifndef __STDC__ #ifndef __GNUC__ #ifndef USE_SYSTEM_ABORT #define USE_SYSTEM_ABORT #endif /* !USE_SYSTEM_ABORT */ #endif /* !__GNUC__ */ #endif /* !__STDC__ */ #ifdef USE_SYSTEM_ABORT # ifdef NEED_DECLARATION_ABORT extern void abort (); # endif #else #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) #define abort() \ (fprintf (stderr, \ "%s:%d: Internal compiler error\n", __FILE__, __LINE__), \ exit (FATAL_EXIT_CODE)) #else #if 1 /* CYGNUS LOCAL where to report bugs -- general */ #define abort() \ (fprintf (stderr, \ "%s:%d: Internal compiler error in function %s\n" \ "Please submit a Problem Report to Cygnus Solutions with send-pr.\n", \ __FILE__, __LINE__, __PRETTY_FUNCTION__), \ exit (FATAL_EXIT_CODE)) #else #define abort() \ (fprintf (stderr, \ "%s:%d: Internal compiler error in function %s\n" \ "Please submit a full bug report to `egcs-bugs@cygnus.com'.\n" \ "See for details.\n", \ __FILE__, __LINE__, __PRETTY_FUNCTION__), \ exit (FATAL_EXIT_CODE)) #endif /* END CYGNUS LOCAL */ #endif /* recent gcc */ #endif /* USE_SYSTEM_ABORT */ #endif /* !abort */ /* 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. 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__)) # define STRINGIFY(STRING) #STRING # else # define STRINGIFY(STRING) "STRING" # endif #endif /* ! STRINGIFY */ /* These macros are here in preparation for the use of gettext in egcs. */ #define _(String) String #define N_(String) String #if HAVE_SYS_STAT_H # include #endif /* Test if something is a normal file. */ #ifndef S_ISREG #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) #endif /* Test if something is a directory. */ #ifndef S_ISDIR #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #endif /* Get libiberty declarations. */ #include "libiberty.h" #endif /* __GCC_SYSTEM_H__ */