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e0502f3c77
* libguile/_scm.h (SCM_OBJCODE_MINIMUM_MINOR_VERSION): New definition, indicating the oldest objcode version that we support. (SCM_OBJCODE_MINOR_VERSION): Bump. * libguile/loader.c (process_dynamic_segment): Support a range of versions. * module/system/vm/assembler.scm (*bytecode-minor-version*): Bump.
268 lines
8.7 KiB
C
268 lines
8.7 KiB
C
/* classes: h_files */
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#ifndef SCM__SCM_H
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#define SCM__SCM_H
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/* Copyright (C) 1995, 1996, 2000, 2001, 2002, 2006, 2008, 2009, 2010,
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* 2011, 2013, 2014 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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/**********************************************************************
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This file is Guile's central private header.
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When included by other files, this file should preceed any include
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other than __scm.h. See __scm.h for details regarding the purpose of
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and differences between _scm.h and __scm.h.
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**********************************************************************/
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#if defined(__ia64) && !defined(__ia64__)
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# define __ia64__
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#endif
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* The size of `scm_t_bits'. */
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#define SIZEOF_SCM_T_BITS SIZEOF_VOID_P
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/* Undefine HAVE_STRUCT_TIMESPEC, because the libguile C code doesn't
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need it anymore, and because on MinGW:
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- the definition of struct timespec is provided (if at all) by
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pthread.h
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- pthread.h will _not_ define struct timespec if
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HAVE_STRUCT_TIMESPEC is 1, because then it thinks that it doesn't
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need to.
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The libguile C code doesn't need HAVE_STRUCT_TIMESPEC anymore,
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because the value of HAVE_STRUCT_TIMESPEC has already been
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incorporated in how scm_t_timespec is defined (in scmconfig.h), and
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the rest of the libguile C code now just uses scm_t_timespec.
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*/
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#ifdef HAVE_STRUCT_TIMESPEC
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#undef HAVE_STRUCT_TIMESPEC
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#endif
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#include <errno.h>
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#include <verify.h>
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#include <alignof.h>
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#include "libguile/__scm.h"
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/* Include headers for those files central to the implementation. The
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rest should be explicitly #included in the C files themselves. */
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#include "libguile/error.h" /* Everyone signals errors. */
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#include "libguile/print.h" /* Everyone needs to print. */
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#include "libguile/pairs.h" /* Everyone conses. */
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#include "libguile/list.h" /* Everyone makes lists. */
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#include "libguile/gc.h" /* Everyone allocates. */
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#include "libguile/gsubr.h" /* Everyone defines global functions. */
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#include "libguile/procs.h" /* Same. */
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#include "libguile/numbers.h" /* Everyone deals with fixnums. */
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#include "libguile/symbols.h" /* For length, chars, values, miscellany. */
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#include "libguile/boolean.h" /* Everyone wonders about the truth. */
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#include "libguile/threads.h" /* You are not alone. */
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#include "libguile/snarf.h" /* Everyone snarfs. */
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#include "libguile/foreign.h" /* Snarfing needs the foreign data structures. */
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#include "libguile/programs.h" /* ... and program.h. */
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#include "libguile/variable.h"
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#include "libguile/modules.h"
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#include "libguile/inline.h"
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#include "libguile/strings.h"
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/* ASYNC_TICK after finding EINTR in order to handle pending signals, if
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any. See comment in scm_syserror. */
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#ifndef SCM_SYSCALL
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#ifdef vms
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# ifndef __GNUC__
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# include <ssdef.h>
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# define SCM_SYSCALL(line) \
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do \
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{ \
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errno = 0; \
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line; \
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if (EVMSERR == errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3)) \
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scm_async_tick (); \
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else \
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break; \
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} \
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while (1)
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# endif /* ndef __GNUC__ */
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#endif /* def vms */
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#endif /* ndef SCM_SYSCALL */
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#ifndef SCM_SYSCALL
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# ifdef EINTR
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# if (EINTR > 0)
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# define SCM_SYSCALL(line) \
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do \
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{ \
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errno = 0; \
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line; \
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if (errno == EINTR) \
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{ \
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scm_async_tick (); \
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errno = EINTR; \
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} \
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} \
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while (errno == EINTR)
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# endif /* (EINTR > 0) */
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# endif /* def EINTR */
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#endif /* ndef SCM_SYSCALL */
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#ifndef SCM_SYSCALL
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# define SCM_SYSCALL(line) line;
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#endif /* ndef SCM_SYSCALL */
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#ifndef min
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#define min(A, B) ((A) <= (B) ? (A) : (B))
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#endif
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#ifndef max
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#define max(A, B) ((A) >= (B) ? (A) : (B))
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#endif
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/* Return the first integer greater than or equal to LEN such that
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LEN % ALIGN == 0. Return LEN if ALIGN is zero. */
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#define ROUND_UP(len, align) \
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((align) ? (((len) - 1UL) | ((align) - 1UL)) + 1UL : (len))
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#if defined GUILE_USE_64_CALLS && GUILE_USE_64_CALLS && defined(HAVE_STAT64)
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#define CHOOSE_LARGEFILE(foo,foo64) foo64
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#else
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#define CHOOSE_LARGEFILE(foo,foo64) foo
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#endif
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/* These names are a bit long, but they make it clear what they represent. */
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#if SCM_HAVE_STRUCT_DIRENT64 == 1
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# define dirent_or_dirent64 CHOOSE_LARGEFILE(dirent,dirent64)
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#else
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# define dirent_or_dirent64 dirent
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#endif
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#define fstat_or_fstat64 CHOOSE_LARGEFILE(fstat,fstat64)
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#define ftruncate_or_ftruncate64 CHOOSE_LARGEFILE(ftruncate,ftruncate64)
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#define lseek_or_lseek64 CHOOSE_LARGEFILE(lseek,lseek64)
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#define lstat_or_lstat64 CHOOSE_LARGEFILE(lstat,lstat64)
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#define off_t_or_off64_t CHOOSE_LARGEFILE(off_t,off64_t)
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#define open_or_open64 CHOOSE_LARGEFILE(open,open64)
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#define readdir_or_readdir64 CHOOSE_LARGEFILE(readdir,readdir64)
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#if SCM_HAVE_READDIR64_R == 1
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# define readdir_r_or_readdir64_r CHOOSE_LARGEFILE(readdir_r,readdir64_r)
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#else
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# define readdir_r_or_readdir64_r readdir_r
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#endif
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#define stat_or_stat64 CHOOSE_LARGEFILE(stat,stat64)
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#define truncate_or_truncate64 CHOOSE_LARGEFILE(truncate,truncate64)
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#define scm_from_off_t_or_off64_t CHOOSE_LARGEFILE(scm_from_off_t,scm_from_int64)
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#define scm_from_ino_t_or_ino64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
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#define scm_from_blkcnt_t_or_blkcnt64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
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#define scm_to_off_t_or_off64_t CHOOSE_LARGEFILE(scm_to_off_t,scm_to_int64)
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#if SIZEOF_OFF_T == 4
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# define scm_to_off_t scm_to_int32
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# define scm_from_off_t scm_from_int32
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#elif SIZEOF_OFF_T == 8
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# define scm_to_off_t scm_to_int64
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# define scm_from_off_t scm_from_int64
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#else
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# error sizeof(off_t) is not 4 or 8.
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#endif
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#define scm_to_off64_t scm_to_int64
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#define scm_from_off64_t scm_from_int64
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#if defined (vms)
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/* VMS: Implement SCM_I_SETJMP in terms of setjump. */
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extern int setjump(scm_i_jmp_buf env);
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extern int longjump(scm_i_jmp_buf env, int ret);
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#define SCM_I_SETJMP setjump
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#define SCM_I_LONGJMP longjump
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#elif defined (_CRAY1)
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/* Cray: Implement SCM_I_SETJMP in terms of setjump. */
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extern int setjump(scm_i_jmp_buf env);
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extern int longjump(scm_i_jmp_buf env, int ret);
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#define SCM_I_SETJMP setjump
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#define SCM_I_LONGJMP longjump
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#elif defined (__ia64__)
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/* IA64: Implement SCM_I_SETJMP in terms of getcontext. */
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# define SCM_I_SETJMP(JB) \
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( (JB).fresh = 1, \
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getcontext (&((JB).ctx)), \
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((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
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# define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
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void scm_ia64_longjmp (scm_i_jmp_buf *, int);
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#else
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/* All other systems just use setjmp and longjmp. */
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#define SCM_I_SETJMP setjmp
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#define SCM_I_LONGJMP longjmp
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#endif
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#if (defined __GNUC__)
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# define SCM_NOINLINE __attribute__ ((__noinline__))
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#else
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# define SCM_NOINLINE /* noinline */
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#endif
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/* The endianness marker in objcode. */
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#ifdef WORDS_BIGENDIAN
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# define SCM_OBJCODE_ENDIANNESS "BE"
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#else
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# define SCM_OBJCODE_ENDIANNESS "LE"
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#endif
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#define _SCM_CPP_STRINGIFY(x) # x
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#define SCM_CPP_STRINGIFY(x) _SCM_CPP_STRINGIFY (x)
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/* The word size marker in objcode. */
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#define SCM_OBJCODE_WORD_SIZE SCM_CPP_STRINGIFY (SIZEOF_VOID_P)
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/* Major and minor versions must be single characters. */
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#define SCM_OBJCODE_MAJOR_VERSION 3
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#define SCM_OBJCODE_MINIMUM_MINOR_VERSION 9
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#define SCM_OBJCODE_MINOR_VERSION A
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#define SCM_OBJCODE_MAJOR_VERSION_STRING \
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SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION)
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#define SCM_OBJCODE_MINOR_VERSION_STRING \
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SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION)
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#define SCM_OBJCODE_VERSION_STRING \
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SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
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#define SCM_OBJCODE_MACHINE_VERSION_STRING \
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SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE "-" SCM_OBJCODE_VERSION_STRING
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#endif /* SCM__SCM_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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