#ifndef SCM__SCM_H
#define SCM__SCM_H
-/* Copyright (C) 1995,1996,2000,2001, 2002, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 2000, 2001, 2002, 2006, 2008, 2009, 2010,
+ * 2011, 2013 Free Software Foundation, Inc.
*
- * This program 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.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
*
- * This program 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.
+ * This library 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
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
\f
and differences between _scm.h and __scm.h.
**********************************************************************/
+#if defined(__ia64) && !defined(__ia64__)
+# define __ia64__
+#endif
#if HAVE_CONFIG_H
# include <config.h>
#endif
+/* The size of `scm_t_bits'. */
+#define SIZEOF_SCM_T_BITS SIZEOF_VOID_P
+
+/* Undefine HAVE_STRUCT_TIMESPEC, because the libguile C code doesn't
+ need it anymore, and because on MinGW:
+
+ - the definition of struct timespec is provided (if at all) by
+ pthread.h
+
+ - pthread.h will _not_ define struct timespec if
+ HAVE_STRUCT_TIMESPEC is 1, because then it thinks that it doesn't
+ need to.
+
+ The libguile C code doesn't need HAVE_STRUCT_TIMESPEC anymore,
+ because the value of HAVE_STRUCT_TIMESPEC has already been
+ incorporated in how scm_t_timespec is defined (in scmconfig.h), and
+ the rest of the libguile C code now just uses scm_t_timespec.
+ */
+#ifdef HAVE_STRUCT_TIMESPEC
+#undef HAVE_STRUCT_TIMESPEC
+#endif
+
#include <errno.h>
+#include <verify.h>
+#include <alignof.h>
#include "libguile/__scm.h"
/* Include headers for those files central to the implementation. The
#include "libguile/boolean.h" /* Everyone wonders about the truth. */
#include "libguile/threads.h" /* You are not alone. */
#include "libguile/snarf.h" /* Everyone snarfs. */
+#include "libguile/foreign.h" /* Snarfing needs the foreign data structures. */
+#include "libguile/programs.h" /* ... and program.h. */
#include "libguile/variable.h"
#include "libguile/modules.h"
#include "libguile/inline.h"
+#include "libguile/strings.h"
-/* SCM_SYSCALL retries system calls that have been interrupted (EINTR).
- However this can be avoided if the operating system can restart
- system calls automatically. We assume this is the case if
- sigaction is available and SA_RESTART is defined; they will be used
- when installing signal handlers.
- */
-
-#ifdef HAVE_RESTARTABLE_SYSCALLS
-#if ! SCM_USE_PTHREAD_THREADS /* However, don't assume SA_RESTART
- works with pthreads... */
-#define SCM_SYSCALL(line) line
-#endif
-#endif
-
+/* ASYNC_TICK after finding EINTR in order to handle pending signals, if
+ any. See comment in scm_syserror. */
#ifndef SCM_SYSCALL
#ifdef vms
# ifndef __GNUC__
# include <ssdef.h>
-# define SCM_SYSCALL(line) do{errno = 0;line;} \
- while(EVMSERR==errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3))
+# define SCM_SYSCALL(line) \
+ do \
+ { \
+ errno = 0; \
+ line; \
+ if (EVMSERR == errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3)) \
+ SCM_ASYNC_TICK; \
+ else \
+ break; \
+ } \
+ while (1)
# endif /* ndef __GNUC__ */
#endif /* def vms */
#endif /* ndef SCM_SYSCALL */
#ifndef SCM_SYSCALL
# ifdef EINTR
# if (EINTR > 0)
-# define SCM_SYSCALL(line) do{errno = 0;line;}while(EINTR==errno)
+# define SCM_SYSCALL(line) \
+ do \
+ { \
+ errno = 0; \
+ line; \
+ if (errno == EINTR) \
+ { \
+ SCM_ASYNC_TICK; \
+ errno = EINTR; \
+ } \
+ } \
+ while (errno == EINTR)
# endif /* (EINTR > 0) */
# endif /* def EINTR */
#endif /* ndef SCM_SYSCALL */
# define SCM_SYSCALL(line) line;
#endif /* ndef SCM_SYSCALL */
-#if !defined (MSDOS) && !defined (__MINGW32__)
-# ifdef ARM_ULIB
- extern volatile int errno;
-# else
- extern int errno;
-# endif /* def ARM_ULIB */
-#endif /* ndef MSDOS && ndef __MINGW32__*/
-
\f
#ifndef min
#define max(A, B) ((A) >= (B) ? (A) : (B))
#endif
+/* Return the first integer greater than or equal to LEN such that
+ LEN % ALIGN == 0. Return LEN if ALIGN is zero. */
+#define ROUND_UP(len, align) \
+ ((align) ? (((len) - 1UL) | ((align) - 1UL)) + 1UL : (len))
-#if HAVE_STAT64
+#if defined GUILE_USE_64_CALLS && GUILE_USE_64_CALLS && defined(HAVE_STAT64)
#define CHOOSE_LARGEFILE(foo,foo64) foo64
#else
#define CHOOSE_LARGEFILE(foo,foo64) foo
#endif
/* These names are a bit long, but they make it clear what they represent. */
-#define dirent_or_dirent64 CHOOSE_LARGEFILE(dirent,dirent64)
+#if SCM_HAVE_STRUCT_DIRENT64 == 1
+# define dirent_or_dirent64 CHOOSE_LARGEFILE(dirent,dirent64)
+#else
+# define dirent_or_dirent64 dirent
+#endif
#define fstat_or_fstat64 CHOOSE_LARGEFILE(fstat,fstat64)
#define ftruncate_or_ftruncate64 CHOOSE_LARGEFILE(ftruncate,ftruncate64)
#define lseek_or_lseek64 CHOOSE_LARGEFILE(lseek,lseek64)
#define off_t_or_off64_t CHOOSE_LARGEFILE(off_t,off64_t)
#define open_or_open64 CHOOSE_LARGEFILE(open,open64)
#define readdir_or_readdir64 CHOOSE_LARGEFILE(readdir,readdir64)
-#define readdir_r_or_readdir64_r CHOOSE_LARGEFILE(readdir_r,readdir64_r)
+#if SCM_HAVE_READDIR64_R == 1
+# define readdir_r_or_readdir64_r CHOOSE_LARGEFILE(readdir_r,readdir64_r)
+#else
+# define readdir_r_or_readdir64_r readdir_r
+#endif
#define stat_or_stat64 CHOOSE_LARGEFILE(stat,stat64)
#define truncate_or_truncate64 CHOOSE_LARGEFILE(truncate,truncate64)
#define scm_from_off_t_or_off64_t CHOOSE_LARGEFILE(scm_from_off_t,scm_from_int64)
#define scm_to_off64_t scm_to_int64
#define scm_from_off64_t scm_from_int64
+#if (defined __GNUC__)
+# define SCM_NOINLINE __attribute__ ((__noinline__))
+#else
+# define SCM_NOINLINE /* noinline */
+#endif
+
+/* The endianness marker in objcode. */
+#ifdef WORDS_BIGENDIAN
+# define SCM_OBJCODE_ENDIANNESS "BE"
+#else
+# define SCM_OBJCODE_ENDIANNESS "LE"
+#endif
+
+#define _SCM_CPP_STRINGIFY(x) # x
+#define SCM_CPP_STRINGIFY(x) _SCM_CPP_STRINGIFY (x)
+
+/* The word size marker in objcode. */
+#define SCM_OBJCODE_WORD_SIZE SCM_CPP_STRINGIFY (SIZEOF_VOID_P)
+
+/* Major and minor versions must be single characters. */
+#define SCM_OBJCODE_MAJOR_VERSION 2
+#define SCM_OBJCODE_MINOR_VERSION 0
+#define SCM_OBJCODE_MAJOR_VERSION_STRING \
+ SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION)
+#define SCM_OBJCODE_MINOR_VERSION_STRING \
+ SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION)
+#define SCM_OBJCODE_VERSION_STRING \
+ SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
+#define SCM_OBJCODE_MACHINE_VERSION_STRING \
+ SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE "-" SCM_OBJCODE_VERSION_STRING
+
+/* The objcode magic header. */
+#define SCM_OBJCODE_COOKIE \
+ "GOOF----" SCM_OBJCODE_MACHINE_VERSION_STRING
+#define SCM_OBJCODE_ENDIANNESS_OFFSET 8
+#define SCM_OBJCODE_WORD_SIZE_OFFSET 11
+
#endif /* SCM__SCM_H */
HCoop / bpt / guile.git / blobdiff