/* 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 /* 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. fputs_unlocked is an extension and needs to be prototyped specially. */ #if defined HAVE_PUTC_UNLOCKED && !defined NEED_DECLARATION_PUTC_UNLOCKED # undef putc # define putc(C, Stream) putc_unlocked (C, Stream) #endif #if defined HAVE_FPUTC_UNLOCKED && !defined NEED_DECLARATION_PUTC_UNLOCKED # undef fputc # define fputc(C, Stream) fputc_unlocked (C, Stream) #endif #if defined HAVE_FPUTS_UNLOCKED && !defined NEED_DECLARATION_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 *)); # endif #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)) || defined(HOST_EBCDIC) # define IN_CTYPE_DOMAIN(c) 1 #else # define IN_CTYPE_DOMAIN(c) isascii(c) #endif /* The ctype functions are often implemented as macros which do lookups in arrays using the parameter as the offset. If the ctype function parameter is a char, then gcc will (appropriately) warn that a "subscript has type char". Using a (signed) char as a subscript is bad because you may get negative offsets and thus it is not 8-bit safe. The CTYPE_CONV macro ensures that the parameter is cast to an unsigned char when a char is passed in. When an int is passed in, the parameter is left alone so we don't lose EOF. */ #define CTYPE_CONV(CH) \ (sizeof(CH) == sizeof(unsigned char) ? (int)(unsigned char)(CH) : (int)(CH)) /* WARNING! The argument to the ctype replacement macros below is evaluated more than once so it must not have side effects! */ #ifdef isblank # define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (CTYPE_CONV(c))) #else # define ISBLANK(c) ((c) == ' ' || (c) == '\t') #endif #ifdef isgraph # define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (CTYPE_CONV(c))) #else # define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (CTYPE_CONV(c)) && !isspace (CTYPE_CONV(c))) #endif #define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (CTYPE_CONV(c))) #define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (CTYPE_CONV(c))) #define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (CTYPE_CONV(c))) #define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (CTYPE_CONV(c))) #define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (CTYPE_CONV(c))) #define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (CTYPE_CONV(c))) #define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (CTYPE_CONV(c))) #define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (CTYPE_CONV(c))) #define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (CTYPE_CONV(c))) #define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (CTYPE_CONV(c))) #if STDC_HEADERS # define TOLOWER(c) (tolower (CTYPE_CONV(c))) # define TOUPPER(c) (toupper (CTYPE_CONV(c))) #else # define TOLOWER(c) (ISUPPER (c) ? tolower (CTYPE_CONV(c)) : (c)) # define TOUPPER(c) (ISLOWER (c) ? toupper (CTYPE_CONV(c)) : (c)) #endif /* 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) /* Define a default escape character; its different for EBCDIC. */ #ifndef TARGET_ESC #define TARGET_ESC 033 #endif #ifdef HAVE_SYS_TYPES_H #include #endif #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 /* Find HOST_WIDEST_INT and set its bit size, type and print macros. It will be the largest integer mode supported by the host which may (or may not) be larger than HOST_WIDE_INT. This must appear after since we only use `long long' if its bigger than a `long' and also if it is supported by macros in limits.h. For old hosts which don't have a limits.h (and thus won't include it in stage2 cause we don't rerun configure) we assume gcc supports long long.) Note, you won't get these defined if you don't include {ht}config.h before this file to set the HOST_BITS_PER_* macros. */ #ifndef HOST_WIDEST_INT # if defined (HOST_BITS_PER_LONG) && defined (HOST_BITS_PER_LONGLONG) # if (HOST_BITS_PER_LONGLONG > HOST_BITS_PER_LONG) && (defined (LONG_LONG_MAX) || defined (LONGLONG_MAX) || defined (LLONG_MAX) || defined (__GNUC__)) # define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONGLONG # define HOST_WIDEST_INT long long # define HOST_WIDEST_INT_PRINT_DEC "%lld" # define HOST_WIDEST_INT_PRINT_UNSIGNED "%llu" # define HOST_WIDEST_INT_PRINT_HEX "0x%llx" # else # define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONG # define HOST_WIDEST_INT long # define HOST_WIDEST_INT_PRINT_DEC "%ld" # define HOST_WIDEST_INT_PRINT_UNSIGNED "%lu" # define HOST_WIDEST_INT_PRINT_HEX "0x%lx" # endif /*(long long>long) && (LONG_LONG_MAX||LONGLONG_MAX||LLONG_MAX||GNUC)*/ # endif /* defined(HOST_BITS_PER_LONG) && defined(HOST_BITS_PER_LONGLONG) */ #endif /* ! HOST_WIDEST_INT */ #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)) #ifdef HAVE_SYS_WAIT_H #include #endif #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 WSTOPSIG #define WSTOPSIG WEXITSTATUS #endif #ifndef bcopy # ifdef HAVE_BCOPY # ifdef NEED_DECLARATION_BCOPY extern void bcopy (); # 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 #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 PTR sbrk (); #endif #ifdef NEED_DECLARATION_STRSTR extern char *strstr (); #endif #ifdef HAVE_MALLOC_H #include #endif #ifdef NEED_DECLARATION_MALLOC extern PTR malloc (); #endif #ifdef NEED_DECLARATION_CALLOC extern PTR calloc (); #endif #ifdef NEED_DECLARATION_REALLOC extern PTR realloc (); #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 #ifdef NEED_DECLARATION_ABORT extern void abort (); #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. 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 */ #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 /* Test if something is a character special file. */ #ifndef S_ISCHR #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) #endif /* Test if something is a socket. */ #ifndef S_ISSOCK # ifdef S_IFSOCK # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) # else # define S_ISSOCK(m) 0 # endif #endif /* Test if something is a FIFO. */ #ifndef S_ISFIFO # ifdef S_IFIFO # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) # else # define S_ISFIFO(m) 0 # endif #endif /* Approximate O_NONBLOCK. */ #ifndef O_NONBLOCK #define O_NONBLOCK O_NDELAY #endif /* Approximate O_NOCTTY. */ #ifndef O_NOCTTY #define O_NOCTTY 0 #endif /* Define well known filenos if the system does not define them. */ #ifndef STDIN_FILENO # define STDIN_FILENO 0 #endif #ifndef STDOUT_FILENO # define STDOUT_FILENO 1 #endif #ifndef STDERR_FILENO # define STDERR_FILENO 2 #endif /* Some systems have mkdir that takes a single argument. */ #ifdef MKDIR_TAKES_ONE_ARG # define mkdir(a,b) mkdir(a) #endif /* Get libiberty declarations. */ #include "libiberty.h" #endif /* __GCC_SYSTEM_H__ */