#ifndef SCM___SCM_H
#define SCM___SCM_H
-/* Copyright (C) 1995,1996,1998,1999,2000,2001,2002,2003, 2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1998,1999,2000,2001,2002,2003, 2006, 2007, 2008, 2009, 2010 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 as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * 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 library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 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 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
\f
#define SCM_LIKELY(_expr) SCM_EXPECT ((_expr), 1)
#define SCM_UNLIKELY(_expr) SCM_EXPECT ((_expr), 0)
+/* The SCM_INTERNAL macro makes it possible to explicitly declare a function
+ * as having "internal" linkage. However our current tack on this problem is
+ * to use GCC 4's -fvisibility=hidden, making functions internal by default,
+ * and then SCM_API marks them for export. */
+#define SCM_INTERNAL extern
+
+/* The SCM_DEPRECATED macro is used in declarations of deprecated functions
+ * or variables. Defining `SCM_BUILDING_DEPRECATED_CODE' allows deprecated
+ * functions to be implemented in terms of deprecated functions, and allows
+ * deprecated functions to be referred to by `scm_c_define_gsubr ()'. */
+#if !defined (SCM_BUILDING_DEPRECATED_CODE) \
+ && defined (__GNUC__) && (__GNUC__ >= 3)
+# define SCM_DEPRECATED SCM_API __attribute__ ((__deprecated__))
+#else
+# define SCM_DEPRECATED SCM_API
+#endif
+
+/* The SCM_ALIGNED macro, when defined, can be used to instruct the compiler
+ * to honor the given alignment constraint. */
+#if defined __GNUC__
+# define SCM_ALIGNED(x) __attribute__ ((aligned (x)))
+#elif defined __INTEL_COMPILER
+# define SCM_ALIGNED(x) __declspec (align (x))
+#else
+/* Don't know how to align things. */
+# undef SCM_ALIGNED
+#endif
+
+/* The SCM_MALLOC macro can be used in function declarations to tell the
+ * compiler that a function may be treated as if any non-NULL pointer it returns
+ * cannot alias any other pointer valid when the function returns. */
+#if defined (__GNUC__) && (__GNUC__ >= 3)
+# define SCM_MALLOC __attribute__ ((__malloc__))
+#else
+# define SCM_MALLOC
+#endif
\f
/* {Supported Options}
/* #define GUILE_DEBUG_FREELIST */
-/* All the number support there is.
- */
-#define BIGNUMS
-
-/* GC should relinquish empty cons-pair arenas. */
-/* cmm:FIXME look at this after done mangling the GC */
-/* #define GC_FREE_SEGMENTS */
-
-/* Provide a scheme-accessible count-down timer that
- * generates a pseudo-interrupt.
- */
-#define TICKS
-
/* Use engineering notation when converting numbers strings?
*/
*/
-#define CCLO
-
/* Guile Scheme supports the #f/() distinction; Guile Lisp won't. We
have horrible plans for their unification. */
#undef SICP
\f
/* SCM_API is a macro prepended to all function and data definitions
- which should be exported or imported in the resulting dynamic link
- library (DLL) in the Win32 port. */
-
-#if defined (SCM_IMPORT)
-# define SCM_API __declspec (dllimport) extern
-#elif defined (SCM_EXPORT) || defined (DLL_EXPORT)
-# define SCM_API __declspec (dllexport) extern
+ which should be exported from libguile. */
+
+#if defined BUILDING_LIBGUILE && defined HAVE_VISIBILITY
+# define SCM_API extern __attribute__((__visibility__("default")))
+#elif defined BUILDING_LIBGUILE && defined _MSC_VER
+# define SCM_API __declspec(dllexport) extern
+#elif defined _MSC_VER
+# define SCM_API __declspec(dllimport) extern
#else
# define SCM_API extern
#endif
#define SCM_DEBUG 0
#endif
+/* For debugging purposes: define this is to ensure nobody is using
+ * the mark bits outside of the marking phase. This is meant for
+ * debugging purposes only.
+ */
+#ifndef SCM_DEBUG_MARKING_API
+#define SCM_DEBUG_MARKING_API 0
+#endif
+
/* If SCM_DEBUG_CELL_ACCESSES is set to 1, cell accesses will perform
* exhaustive parameter checking: It will be verified that cell parameters
* actually point to a valid heap cell. Note: If this option is enabled,
#define SCM_T_INT32_MIN SCM_I_TYPE_MIN(scm_t_int32,SCM_T_UINT32_MAX)
#define SCM_T_INT32_MAX SCM_I_TYPE_MAX(scm_t_int32,SCM_T_UINT32_MAX)
-#if SCM_HAVE_T_INT64
#define SCM_T_UINT64_MAX SCM_I_UTYPE_MAX(scm_t_uint64)
#define SCM_T_INT64_MIN SCM_I_TYPE_MIN(scm_t_int64,SCM_T_UINT64_MAX)
#define SCM_T_INT64_MAX SCM_I_TYPE_MAX(scm_t_int64,SCM_T_UINT64_MAX)
-#endif
#if SCM_SIZEOF_LONG_LONG
#define SCM_I_ULLONG_MAX SCM_I_UTYPE_MAX(unsigned long long)
#define SCM_T_INTMAX_MIN SCM_I_TYPE_MIN(scm_t_intmax,SCM_T_UINTMAX_MAX)
#define SCM_T_INTMAX_MAX SCM_I_TYPE_MAX(scm_t_intmax,SCM_T_UINTMAX_MAX)
+#define SCM_T_UINTPTR_MAX SCM_I_UTYPE_MAX(scm_t_uintptr)
+#define SCM_T_INTPTR_MIN SCM_I_TYPE_MIN(scm_t_intptr,SCM_T_UINTPTR_MAX)
+#define SCM_T_INTPTR_MAX SCM_I_TYPE_MAX(scm_t_intptr,SCM_T_UINTPTR_MAX)
+
#define SCM_I_SIZE_MAX SCM_I_UTYPE_MAX(size_t)
#define SCM_I_SSIZE_MIN SCM_I_TYPE_MIN(ssize_t,SCM_I_SIZE_MAX)
#define SCM_I_SSIZE_MAX SCM_I_TYPE_MAX(ssize_t,SCM_I_SIZE_MAX)
# define setjmp setjump
# define longjmp longjump
# else /* ndef _CRAY1 */
-# include <setjmp.h>
+# if defined (__ia64__)
+/* For IA64, emulate the setjmp API using getcontext. */
+# include <signal.h>
+# include <ucontext.h>
+ typedef struct {
+ ucontext_t ctx;
+ int fresh;
+ } scm_i_jmp_buf;
+# define SCM_I_SETJMP(JB) \
+ ( (JB).fresh = 1, \
+ getcontext (&((JB).ctx)), \
+ ((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
+# define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
+ void scm_ia64_longjmp (scm_i_jmp_buf *, int);
+# else /* ndef __ia64__ */
+# include <setjmp.h>
+# endif /* ndef __ia64__ */
# endif /* ndef _CRAY1 */
#endif /* ndef vms */
+/* For any platform where SCM_I_SETJMP hasn't been defined in some
+ special way above, map SCM_I_SETJMP, SCM_I_LONGJMP and
+ scm_i_jmp_buf to setjmp, longjmp and jmp_buf. */
+#ifndef SCM_I_SETJMP
+#define scm_i_jmp_buf jmp_buf
+#define SCM_I_SETJMP setjmp
+#define SCM_I_LONGJMP longjmp
+#endif
+
/* James Clark came up with this neat one instruction fix for
* continuations on the SPARC. It flushes the register windows so
* that all the state of the process is contained in the stack.
#define SCM_STACK_PTR(ptr) ((SCM_STACKITEM *) (void *) (ptr))
\f
-#define SCM_ASYNC_TICK /*fixme* should change names */ \
-do { \
- if (SCM_I_CURRENT_THREAD->pending_asyncs) \
- scm_async_click (); \
-} while (0)
+SCM_API void scm_async_tick (void);
+
+#ifdef BUILDING_LIBGUILE
+
+/* FIXME: should change names */
+# define SCM_ASYNC_TICK \
+ do \
+ { \
+ if (SCM_UNLIKELY (SCM_I_CURRENT_THREAD->pending_asyncs)) \
+ scm_async_click (); \
+ } \
+ while (0)
+
+/* SCM_ASYNC_TICK_WITH_CODE is only available to Guile itself */
+# define SCM_ASYNC_TICK_WITH_CODE(stmt) \
+ do \
+ { \
+ if (SCM_UNLIKELY (SCM_I_CURRENT_THREAD->pending_asyncs)) \
+ { \
+ stmt; \
+ scm_async_click (); \
+ } \
+ } \
+ while (0)
+
+#else /* !BUILDING_LIBGUILE */
+
+# define SCM_ASYNC_TICK (scm_async_tick ())
+
+#endif /* !BUILDING_LIBGUILE */
/* Anthony Green writes:
return (SCM_UNPACK (gf) \
? scm_call_generic_1 ((gf), (a1)) \
: (scm_wrong_type_arg ((subr), (pos), (a1)), SCM_UNSPECIFIED))
+
+/* This form is for dispatching a subroutine. */
+#define SCM_WTA_DISPATCH_1_SUBR(subr, a1, pos) \
+ return (SCM_UNPACK ((*SCM_SUBR_GENERIC (subr))) \
+ ? scm_call_generic_1 ((*SCM_SUBR_GENERIC (subr)), (a1)) \
+ : (scm_i_wrong_type_arg_symbol (SCM_SUBR_NAME (subr), (pos), (a1)), SCM_UNSPECIFIED))
+
#define SCM_GASSERT1(cond, gf, a1, pos, subr) \
if (SCM_UNLIKELY (!(cond))) \
SCM_WTA_DISPATCH_1((gf), (a1), (pos), (subr))
#define SCM_C_INLINE_KEYWORD
#endif
+/* Handling thread-local storage (TLS). */
+
+#ifdef SCM_HAVE_THREAD_STORAGE_CLASS
+# define SCM_THREAD_LOCAL __thread
+#else
+# define SCM_THREAD_LOCAL
+#endif
+
#endif /* SCM___SCM_H */
/*
HCoop / bpt / guile.git / blobdiff