build: Don't include <config.h> in native programs when cross-compiling.

[bpt/guile.git] / libguile / _scm.h

diff --git a/libguile/_scm.h b/libguile/_scm.h
index a7a5e8f..a5c2ba8 100644 (file)
--- a/libguile/_scm.h
+++ b/libguile/_scm.h
@@ -3,7 +3,8 @@
 #ifndef SCM__SCM_H
 #define SCM__SCM_H
 
-/* Copyright (C) 1995,1996,2000,2001, 2002, 2006, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 2000, 2001, 2002, 2006, 2008, 2009, 2010,
+ *   2011, 2013 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -39,6 +40,9 @@
 #  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:
 
@@ -60,6 +64,7 @@
 
 #include <errno.h>
 #include <verify.h>
+#include <alignof.h>
 #include "libguile/__scm.h"
 
 /* Include headers for those files central to the implementation.  The
@@ -76,16 +81,30 @@
 #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"
 
+/* 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  */
@@ -93,7 +112,18 @@
 #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 */
@@ -111,9 +141,13 @@
 #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 GUILE_USE_64_CALLS && 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
@@ -156,6 +190,11 @@
 #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
@@ -171,8 +210,8 @@
 #define SCM_OBJCODE_WORD_SIZE  SCM_CPP_STRINGIFY (SIZEOF_VOID_P)
 
 /* Major and minor versions must be single characters. */
-#define SCM_OBJCODE_MAJOR_VERSION 0
-#define SCM_OBJCODE_MINOR_VERSION I
+#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        \
@@ -180,11 +219,13 @@
 #define SCM_OBJCODE_VERSION_STRING                                      \
   SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
 #define SCM_OBJCODE_MACHINE_VERSION_STRING                              \
-  SCM_OBJCODE_VERSION_STRING "-" SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE
+  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 "---"
+  "GOOF----" SCM_OBJCODE_MACHINE_VERSION_STRING
+#define SCM_OBJCODE_ENDIANNESS_OFFSET 8
+#define SCM_OBJCODE_WORD_SIZE_OFFSET 11
 
 
 #endif  /* SCM__SCM_H */