mirror of
https://github.com/Mercury-Language/mercury.git
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d6a1bd7fc1
Estimated hours taken: 0.25 configure.in: runtime/mercury_conf.h.in: Delete the test for tempnam(), since we don't use it. (It's not part of the ANSI or POSIX standards, and the Linux man page says "Never use this function.", so we're unlikely to want it in the future either.)
366 lines
11 KiB
C
366 lines
11 KiB
C
/*
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** Copyright (C) 1995-2000 The University of Melbourne.
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** This file may only be copied under the terms of the GNU Library General
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** Public License - see the file COPYING.LIB in the Mercury distribution.
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*/
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/*
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** mercury_conf.h.in -
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** Defines various configuration parameters.
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**
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** Configuration parameters fall into three groups.
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** They can be set automatically by autoconf.
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** They can be passed on the command line (e.g. the mgnuc
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** script sets some options based on the grade).
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** Or their values can be entirely determined by the settings
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** of other parameters.
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**
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** The ones defined in this file are determined by autoconf.
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** The remainder are documented and/or defined in mercury_conf_param.h,
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** which is #included by this file.
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*/
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/*
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** IMPORTANT NOTE:
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** This file must not contain any other #include statements,
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** and may not define any global variables,
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** for reasons explained in mercury_imp.h.
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** This file should contain _only_ configuration macros.
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*/
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#ifndef MERCURY_CONF_H
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#define MERCURY_CONF_H
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/*---------------------------------------------------------------------------*/
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/*
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** Configuration parameters determined by autoconf.
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*/
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/*
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** MR_WORD_TYPE: the base type for the definition of Word.
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** This must be a C integral type (e.g. int, long, or long long)
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** without any explicit signedness.
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** It ought to be the same size as the machine's general-purpose registers
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** (i.e. the same size as pointers).
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*/
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#undef MR_WORD_TYPE
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/*
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** MR_INTEGER_LENGTH_MODIFIER: the printf() length modifier for a MR_Integer.
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*/
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#undef MR_INTEGER_LENGTH_MODIFIER
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/*
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** MR_INT_LEAST64_TYPE:
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** This must be a C integral type (e.g. int, long, long long)
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** without any explicit signedness.
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** It ought to be at least 64 bits in size.
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** It may be bigger, but any bits beyond 64 are not used.
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*/
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#undef MR_INT_LEAST64_TYPE
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/*
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** MR_INT_LEAST32_TYPE:
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** This must be a C integral type (e.g. short, int, long)
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** without any explicit signedness.
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** It ought to be at least 32 bits in size.
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** It may be bigger, but any bits beyond 32 are not used.
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*/
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#undef MR_INT_LEAST32_TYPE
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/*
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** MR_INT_LEAST16_TYPE:
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** This must be a C integral type (e.g. short, int)
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** without any explicit signedness.
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** It ought to be at least 16 bits in size.
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** It may be bigger, but any bits beyond 16 are not used.
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*/
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#undef MR_INT_LEAST16_TYPE
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/*
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** LOW_TAG_BITS: an integer, specifying the number of low-order tag bits
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** we can use. Normally this is the base-2 log of the word size in bytes.
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*/
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#undef LOW_TAG_BITS
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/*
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** BOXED_FLOAT: defined if double precision floats might not fit
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** in a Word, and hence must be boxed.
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** Note that when bootstrapping from the source distribution,
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** we initially build things without BOXED_FLOAT even on machines
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** for which sizeof(MR_Float) <= sizeof(MR_Word).
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** Conversely if BOXED_FLOAT is undefined, it implies that
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** sizeof(MR_Float) <= sizeof(MR_Word).
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*/
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#undef BOXED_FLOAT
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/*
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** The following macros are defined iff the corresponding header file
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** is available:
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**
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** HAVE_SYS_SIGINFO we have <sys/siginfo.h>
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** HAVE_UCONTEXT we have <ucontext.h>
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** HAVE_SYS_UCONTEXT we have <sys/ucontext.h>
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** HAVE_ASM_SIGCONTEXT we have <asm/sigcontext.h> (e.g. i386 Linux)
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** HAVE_SYS_TIME we have <sys/time.h>
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** HAVE_UNISTD_H we have <unistd.h>
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** HAVE_SYS_PARAM we have <sys/param.h>
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** HAVE_SYS_WAIT we have <sys/wait.h>
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** HAVE_SYS_STAT_H we have <sys/stat.h>
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** HAVE_SYS_TYPES_H we have <sys/types.h>
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** HAVE_SYS_TIMES_H we have <sys/times.h>
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** HAVE_DLFCN_H we have <dlfcn.h>
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*/
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#undef HAVE_SYS_SIGINFO
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#undef HAVE_UCONTEXT
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#undef HAVE_SYS_UCONTEXT
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#undef HAVE_ASM_SIGCONTEXT
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#undef HAVE_SYS_TIME
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#undef HAVE_UNISTD_H
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#undef HAVE_SYS_PARAM
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#undef HAVE_SYS_WAIT
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#undef HAVE_SYS_STAT_H
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#undef HAVE_SYS_TIMES_H
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#undef HAVE_SYS_TYPES_H
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#undef HAVE_DLFCN_H
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/*
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** MR_HAVE_POSIX_TIMES is defined if we have the POSIX
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** `struct tms' struct and times() function.
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*/
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#undef MR_HAVE_POSIX_TIMES
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/*
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** The following macros are defined iff the corresponding type
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** is available (in <stdint.h>, <inttypes.h>, or <sys/types.h>):
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**
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** MR_HAVE_INTPTR_T we have intptr_t and uintptr_t
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** MR_HAVE_INT_LEASTN_T we have {u,}int_least{8,16,32}_t
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*/
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#undef MR_HAVE_INTPTR_T
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#undef MR_HAVE_INT_LEASTN_T
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/*
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** The following macros are defined iff the corresponding function or
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** system call is available:
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**
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** HAVE_VSNPRINTF we have the vsnprintf() function.
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** HAVE__VSNPRINTF we have the _vsnprintf() function.
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** HAVE_SYSCONF we have the sysconf() system call.
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** HAVE_SIGACTION we have the sigaction() system call.
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** HAVE_GETPAGESIZE we have the getpagesize() system call.
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** HAVE_MPROTECT we have the mprotect() system call.
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** HAVE_MEMALIGN we have the memalign() function.
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** HAVE_STRERROR we have the strerror() function.
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** HAVE_SETITIMER we have the setitimer() function.
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** HAVE_MEMMOVE we have the memmove() function.
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** HAVE_DLOPEN we have the dlopen() function.
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** HAVE_DLCLOSE we have the dlclose() function.
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** HAVE_DLSYM we have the dlsym() function.
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** HAVE_DLERROR we have the dlerror() function.
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** HAVE_FSTAT we have the fstat() function.
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** HAVE_FDOPEN we have the fdopen() function.
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** HAVE_FILENO we have the fileno() function.
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** Note that fileno() may be a macro
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** rather than a function, so you should use
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** #if defined(fileno) || defined(HAVE_FILENO)
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*/
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#undef HAVE_VSNPRINTF
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#undef HAVE__VSNPRINTF
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#undef HAVE_SYSCONF
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#undef HAVE_SIGACTION
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#undef HAVE_GETPAGESIZE
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#undef HAVE_MEMALIGN
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#undef HAVE_MPROTECT
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#undef HAVE_STRERROR
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#undef HAVE_SETITIMER
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#undef HAVE_MEMMOVE
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#undef HAVE_DLOPEN
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#undef HAVE_DLCLOSE
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#undef HAVE_DLSYM
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#undef HAVE_DLERROR
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#undef HAVE_FSTAT
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#undef HAVE_FDOPEN
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#undef HAVE_FILENO
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/*
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** RETSIGTYPE: the return type of signal handlers.
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** Either `int' or `void'.
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*/
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#undef RETSIGTYPE
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/*
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** We use mprotect() and signals to catch stack and heap overflows.
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** In order to detect such overflows, we need to be able to figure
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** out what address we were trying to read from or write to when we
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** get a SIGSEGV signal. This is a fairly non-portable thing, so
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** it has to be done differently on different systems.
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** The following macros specify whether we can do it and if so, how.
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**
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** HAVE_SIGINFO defined iff we can _somehow_ figure out the
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** fault address for SIGSEGVs.
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** HAVE_SIGINFO_T defined iff we can figure out the
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** fault address for SIGSEGVs using sigaction
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** and siginfo_t.
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** HAVE_SIGCONTEXT_STRUCT defined iff normal signal handlers are given
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** sigcontext_struct arguments that we can use to
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** figure out the fault address for SIGSEGVs.
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** HAVE_SIGCONTEXT_STRUCT_3ARG
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** defined iff signal handlers have three
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** parameters, the third being the
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** sigcontext struct.
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** HAVE_SIGCONTEXT_STRUCT_2ARG
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** defined iff signal handlers have two
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** parameters, the second being the
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** sigcontext struct.
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*/
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#undef HAVE_SIGINFO
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#undef HAVE_SIGINFO_T
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#undef HAVE_SIGCONTEXT_STRUCT
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#undef HAVE_SIGCONTEXT_STRUCT_3ARG
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#undef HAVE_SIGCONTEXT_STRUCT_2ARG
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/*
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** For debugging purposes, if we get a fatal signal, we print out the
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** program counter (PC) at which the signal occurred.
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**
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** PC_ACCESS, PC_ACCESS_GREG: the way to access the saved PC in ucontexts.
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**
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** If PC_ACCESS_GREG is defined, then PC_ACCESS specifies an index into
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** the `gregs' (general registers) array, which is a field of the `ucontext'
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** struct. Otherwise, if PC_ACCESS is defined then it is a field name
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** in the `ucontext' struct. If PC_ACCESS is not defined, then we don't
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** have any way of getting the saved PC.
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*/
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#undef PC_ACCESS
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#undef PC_ACCESS_GREG
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/*
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** SIGACTION_FIELD: the name of the field in the sigaction struct
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** (either sa_handler or sa_sigaction). Defined only if HAVE_SIGACTION
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** is defined.
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*/
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#undef SIGACTION_FIELD
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/*
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** Configuration parameters for multithreaded execution support.
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**
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** MR_DIGITAL_UNIX_PTHREADS is used to distinguish places where
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** Digital Unix doesn't conform to the letter of the Posix standard
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** for Pthreads.
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**
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*/
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#undef MR_DIGITAL_UNIX_PTHREADS
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/*
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** The bytecode files represent floats in 64-bit IEEE format.
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**
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** MR_FLOAT_IS_64_BITS: defined iff the C type `float' is exactly 64 bits.
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** MR_DOUBLE_IS_64_BITS: defined iff the C type `double' is exactly 64 bits.
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** MR_LONG_DOUBLE_IS_64_BITS: defined iff the C type `long double' is exactly
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** 64-bits.
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**
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** XXX why not just have a single MR_64_BIT_FLOAT_TYPE macro,
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** defined to `float', `double', or `long double' as appropriate?
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*/
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#undef MR_FLOAT_IS_64_BIT
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#undef MR_DOUBLE_IS_64_BIT
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#undef MR_LONG_DOUBLE_IS_64_BIT
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/*
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** The following macros specify the ordering of bytes within
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** are used by the bytecode compiler and the
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** bytecode interpreter when writing/reading floats from/to bytecode files.
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**
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** MR_BIG_ENDIAN: defined iff the host system is big-endian.
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** MR_LITTLE_ENDIAN: defined iff the host system is little-endian.
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** (Wierd-endian systems should define neither of these.)
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*/
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#undef MR_BIG_ENDIAN
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#undef MR_LITTLE_ENDIAN
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/*
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** Which version of Mercury is this? (Taken from the file ../VERSION.)
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*/
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#define MR_VERSION "unknown"
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/*
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** What system is this version of Mercury configured for?
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*/
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#define MR_FULLARCH "unknown"
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/*
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** Should we build the Mercury libraries as Windows DLLs?
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*/
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#undef USE_DLLS
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/*
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** For SPARC systems, does `as' not allow `.type' in inline asm?
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** (True for SunOS 4.x.)
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*/
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#undef MR_CANNOT_GROK_ASM_TYPE_DIRECTIVE
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/*
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** On some platforms, structure assignments can cause gcc to abort
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** with the message "fixed or forbidden register was spilled." in some grades.
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*/
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#undef MR_CANNOT_USE_STRUCTURE_ASSIGNMENT
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/*
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** To handle contexts suspended on IO operations we use the select() system
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** call and supporting data structures which while POSIX, are not ANSI.
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*/
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#undef MR_CAN_DO_PENDING_IO
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/*
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** MR_USE_EXTERNAL_DEBUGGER:
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** Allow MR_trace() to use an external process debugger
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** (with communication done via a socket interface)
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** rather than using the debugger that is part of
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** the Mercury runtime.
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** This requires that the system support sockets.
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** See trace/mercury_trace_external.c.
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*/
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#undef MR_USE_EXTERNAL_DEBUGGER
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/*
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** MR_DISABLE_DECLARATIVE_DEBUGGER:
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** Remove declarative debugging support from the internal
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** debugger, even if it is compatible with the current grade.
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** Whether the declarative debugger can be used or not is
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** determined in runtime/mercury_conf_param.h.
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*/
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#undef MR_DISABLE_DECLARATIVE_DEBUGGER
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/*
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** MR_NO_USE_READLINE
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** Set this if you want to prevent the debugger from using the GNU
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** readline library for the command-line prompt.
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** The autoconfiguration script sets this if it can't find a termcap
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** library.
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**
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** HAVE_READLINE_READLINE
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** HAVE_READLINE_HISTORY
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** Defined if the header files readline/readline.h and
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** readline/history.h are available.
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*/
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#undef MR_NO_USE_READLINE
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#undef HAVE_READLINE_READLINE
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#undef HAVE_READLINE_HISTORY
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/*
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** MR_NEW_MERCURYFILE_STRUCT
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** Set this if you want to use the new MercuryFile structure. The
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** new structure contains pointers to functions to do all the basic IO
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** functions. See extras/logged_output for an example of how to
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** override the pointers to provide IO streams with extra functionality.
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*/
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#undef MR_NEW_MERCURYFILE_STRUCT
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/*---------------------------------------------------------------------------*/
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#include "mercury_conf_param.h"
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#endif /* MERCURY_CONF_H */
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