+/*
+ * Copyright (c) 1994 by Xerox Corporation. All rights reserved.
+ * Copyright (c) 1996 by Silicon Graphics. All rights reserved.
+ * Copyright (c) 1998 by Fergus Henderson. All rights reserved.
+ * Copyright (c) 2000-2009 by Hewlett-Packard Development Company.
+ * All rights reserved.
+ *
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ */
+
/*
* This should never be included directly. It is included only from gc.h.
* We separate it only to make gc.h more suitable as documentation.
- *
+ *
* Some tests for old macros. These violate our namespace rules and will
* disappear shortly. Use the GC_ names.
*/
#if defined(SOLARIS_THREADS) || defined(_SOLARIS_THREADS) \
|| defined(_SOLARIS_PTHREADS) || defined(GC_SOLARIS_PTHREADS)
- /* We no longer support old style Solaris threads. */
- /* GC_SOLARIS_THREADS now means pthreads. */
+ /* We no longer support old style Solaris threads. */
+ /* GC_SOLARIS_THREADS now means pthreads. */
# ifndef GC_SOLARIS_THREADS
# define GC_SOLARIS_THREADS
# endif
#if defined(IRIX_THREADS)
# define GC_IRIX_THREADS
#endif
-#if defined(DGUX_THREADS)
-# if !defined(GC_DGUX386_THREADS)
-# define GC_DGUX386_THREADS
-# endif
+#if defined(DGUX_THREADS) && !defined(GC_DGUX386_THREADS)
+# define GC_DGUX386_THREADS
#endif
#if defined(AIX_THREADS)
# define GC_AIX_THREADS
# define GC_USE_LD_WRAP
#endif
-#if !defined(_PTHREADS) && defined(GC_NETBSD_THREADS)
-# define _PTHREADS
-#endif
-
-#if defined(GC_DGUX386_THREADS) && !defined(_POSIX4A_DRAFT10_SOURCE)
-# define _POSIX4A_DRAFT10_SOURCE 1
-#endif
-
-# if defined(GC_SOLARIS_THREADS) || defined(GC_FREEBSD_THREADS) || \
- defined(GC_IRIX_THREADS) || defined(GC_LINUX_THREADS) || \
- defined(GC_HPUX_THREADS) || defined(GC_OSF1_THREADS) || \
- defined(GC_DGUX386_THREADS) || defined(GC_DARWIN_THREADS) || \
- defined(GC_AIX_THREADS) || defined(GC_NETBSD_THREADS) || \
- (defined(GC_WIN32_THREADS) && defined(__CYGWIN32__)) || \
- defined(GC_GNU_THREADS)
-# define GC_PTHREADS
-# endif
-
-#if defined(GC_WIN32_PTHREADS)
-# define GC_WIN32_THREADS
-# define GC_PTHREADS
+#if defined(GC_WIN32_PTHREADS) && !defined(GC_WIN32_THREADS)
+ /* Using pthreads-w32 library. */
+# define GC_WIN32_THREADS
#endif
-#if defined(GC_THREADS) && !defined(GC_PTHREADS)
+#if defined(GC_AIX_THREADS) || defined(GC_DARWIN_THREADS) \
+ || defined(GC_DGUX386_THREADS) || defined(GC_FREEBSD_THREADS) \
+ || defined(GC_GNU_THREADS) || defined(GC_HPUX_THREADS) \
+ || defined(GC_IRIX_THREADS) || defined(GC_LINUX_THREADS) \
+ || defined(GC_NETBSD_THREADS) || defined(GC_OPENBSD_THREADS) \
+ || defined(GC_OSF1_THREADS) || defined(GC_SOLARIS_THREADS) \
+ || defined(GC_WIN32_THREADS)
+# ifndef GC_THREADS
+# define GC_THREADS
+# endif
+#elif defined(GC_THREADS)
# if defined(__linux__)
# define GC_LINUX_THREADS
-# define GC_PTHREADS
# endif
# if !defined(__linux__) && (defined(_PA_RISC1_1) || defined(_PA_RISC2_0) \
- || defined(hppa) || defined(__HPPA)) \
- || (defined(__ia64) && defined(_HPUX_SOURCE))
+ || defined(hppa) || defined(__HPPA)) \
+ || (defined(__ia64) && defined(_HPUX_SOURCE))
# define GC_HPUX_THREADS
-# define GC_PTHREADS
# endif
# if !defined(__linux__) && (defined(__alpha) || defined(__alpha__))
# define GC_OSF1_THREADS
-# define GC_PTHREADS
# endif
# if defined(__mips) && !defined(__linux__)
# define GC_IRIX_THREADS
-# define GC_PTHREADS
# endif
# if defined(__sparc) && !defined(__linux__) \
|| defined(sun) && (defined(i386) || defined(__i386__) \
- || defined(__amd64__))
+ || defined(__amd64__))
# define GC_SOLARIS_THREADS
-# define GC_PTHREADS
-# endif
-# if defined(__APPLE__) && defined(__MACH__)
+# elif defined(__APPLE__) && defined(__MACH__)
# define GC_DARWIN_THREADS
-# define GC_PTHREADS
-# endif
-# if !defined(GC_PTHREADS) && (defined(__FreeBSD__) || defined(__DragonFly__))
-# define GC_FREEBSD_THREADS
-# define GC_PTHREADS
-# endif
-# if !defined(GC_PTHREADS) && defined(__NetBSD__)
-# define GC_NETBSD_THREADS
-# define GC_PTHREADS
+# elif defined(__OpenBSD__)
+# define GC_OPENBSD_THREADS
+# elif !defined(GC_LINUX_THREADS) && !defined(GC_HPUX_THREADS) \
+ && !defined(GC_OSF1_THREADS) && !defined(GC_IRIX_THREADS)
+ /* FIXME: Should we really need for FreeBSD and NetBSD to check */
+ /* that no other GC_xxx_THREADS macro is set? */
+# if defined(__FreeBSD__) || defined(__DragonFly__)
+# define GC_FREEBSD_THREADS
+# elif defined(__NetBSD__)
+# define GC_NETBSD_THREADS
+# endif
# endif
# if defined(DGUX) && (defined(i386) || defined(__i386__))
# define GC_DGUX386_THREADS
-# define GC_PTHREADS
# endif
# if defined(_AIX)
# define GC_AIX_THREADS
-# define GC_PTHREADS
+# endif
+# if (defined(_WIN32) || defined(_MSC_VER) || defined(__BORLANDC__) \
+ || defined(__CYGWIN32__) || defined(__CYGWIN__) || defined(__CEGCC__) \
+ || defined(_WIN32_WCE) || defined(__MINGW32__)) \
+ && !defined(GC_WIN32_THREADS)
+ /* Either posix or native Win32 threads. */
+# define GC_WIN32_THREADS
# endif
#endif /* GC_THREADS */
-#if !defined(_REENTRANT) && (defined(GC_SOLARIS_THREADS) \
- || defined(GC_HPUX_THREADS) \
- || defined(GC_AIX_THREADS) \
- || defined(GC_LINUX_THREADS) \
- || defined(GC_NETBSD_THREADS) \
- || defined(GC_GNU_THREADS))
-# define _REENTRANT
- /* Better late than never. This fails if system headers that */
- /* depend on this were previously included. */
+#undef GC_PTHREADS
+#if (!defined(GC_WIN32_THREADS) || defined(GC_WIN32_PTHREADS) \
+ || defined(__CYGWIN32__) || defined(__CYGWIN__)) && defined(GC_THREADS)
+ /* Posix threads. */
+# define GC_PTHREADS
#endif
-#if defined(GC_THREADS) && !defined(GC_PTHREADS) && !defined(GC_WIN32_THREADS) \
- && (defined(_WIN32) || defined(_MSC_VER) || defined(__CYGWIN__) \
- || defined(__MINGW32__) || defined(__BORLANDC__) \
- || defined(_WIN32_WCE))
-# define GC_WIN32_THREADS
-# if defined(__CYGWIN__)
-# define GC_PTHREADS
-# endif
+#if !defined(_PTHREADS) && defined(GC_NETBSD_THREADS)
+# define _PTHREADS
#endif
-# define __GC
-# ifndef _WIN32_WCE
-# include <stddef.h>
-# if defined(__MINGW32__)
-# include <stdint.h>
- /* We mention uintptr_t. */
- /* Perhaps this should be included in pure msft environments */
- /* as well? */
-# endif
-# else /* ! _WIN32_WCE */
-/* Yet more kludges for WinCE */
-# include <stdlib.h> /* size_t is defined here */
- typedef long ptrdiff_t; /* ptrdiff_t is not defined */
-# endif
+#if defined(GC_DGUX386_THREADS) && !defined(_POSIX4A_DRAFT10_SOURCE)
+# define _POSIX4A_DRAFT10_SOURCE 1
+#endif
-#if defined(_DLL) && !defined(GC_NOT_DLL) && !defined(GC_DLL)
-# define GC_DLL
+#if !defined(_REENTRANT) && defined(GC_PTHREADS) && !defined(GC_WIN32_THREADS)
+ /* Better late than never. This fails if system headers that depend */
+ /* on this were previously included. */
+# define _REENTRANT
#endif
-#if defined(__MINGW32__) && defined(GC_DLL)
-# ifdef GC_BUILD
-# define GC_API __declspec(dllexport)
-# else
-# define GC_API __declspec(dllimport)
+#define __GC
+#if !defined(_WIN32_WCE) || defined(__GNUC__)
+# include <stddef.h>
+# if defined(__MINGW32__) && !defined(_WIN32_WCE)
+# include <stdint.h>
+ /* We mention uintptr_t. */
+ /* Perhaps this should be included in pure msft environments */
+ /* as well? */
+# endif
+#else /* ! _WIN32_WCE */
+ /* Yet more kludges for WinCE */
+# include <stdlib.h> /* size_t is defined here */
+# ifndef _PTRDIFF_T_DEFINED
+ /* ptrdiff_t is not defined */
+# define _PTRDIFF_T_DEFINED
+ typedef long ptrdiff_t;
# endif
#endif
-#if (defined(__DMC__) || defined(_MSC_VER) || defined(__BORLANDC__)) \
- && defined(GC_DLL)
-# ifdef GC_BUILD
-# define GC_API extern __declspec(dllexport)
-# else
-# define GC_API __declspec(dllimport)
-# endif
+#if defined(_DLL) && !defined(GC_NOT_DLL) && !defined(GC_DLL) \
+ && !defined(__GNUC__)
+# define GC_DLL
#endif
-#if defined(__WATCOMC__) && defined(GC_DLL)
-# ifdef GC_BUILD
-# define GC_API extern __declspec(dllexport)
-# else
-# define GC_API extern __declspec(dllimport)
+#if defined(GC_DLL) && !defined(GC_API)
+
+# if defined(__MINGW32__) || defined(__CEGCC__)
+# ifdef GC_BUILD
+# define GC_API __declspec(dllexport)
+# else
+# define GC_API __declspec(dllimport)
+# endif
+
+# elif defined(_MSC_VER) || defined(__DMC__) || defined(__BORLANDC__) \
+ || defined(__CYGWIN__)
+# ifdef GC_BUILD
+# define GC_API extern __declspec(dllexport)
+# else
+# define GC_API __declspec(dllimport)
+# endif
+
+# elif defined(__WATCOMC__)
+# ifdef GC_BUILD
+# define GC_API extern __declspec(dllexport)
+# else
+# define GC_API extern __declspec(dllimport)
+# endif
+
+# elif defined(__GNUC__)
+ /* Only matters if used in conjunction with -fvisibility=hidden option. */
+# if __GNUC__ >= 4 && defined(GC_BUILD)
+# define GC_API extern __attribute__((__visibility__("default")))
+# endif
+
# endif
-#endif
+#endif /* GC_DLL */
#ifndef GC_API
# define GC_API extern
#ifndef GC_CALLBACK
# define GC_CALLBACK GC_CALL
#endif
+
+#ifndef GC_ATTR_MALLOC
+ /* 'malloc' attribute should be used for all malloc-like functions */
+ /* (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 the client code violates this rule */
+ /* by using custom GC_oom_func then define GC_OOM_FUNC_RETURNS_ALIAS. */
+# if !defined(GC_OOM_FUNC_RETURNS_ALIAS) && defined(__GNUC__) \
+ && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
+# define GC_ATTR_MALLOC __attribute__((__malloc__))
+# else
+# define GC_ATTR_MALLOC
+# endif
+#endif
+
+#ifndef GC_ATTR_ALLOC_SIZE
+ /* 'alloc_size' attribute improves __builtin_object_size correctness. */
+ /* Only single-argument form of 'alloc_size' attribute is used. */
+# if defined(__GNUC__) && (__GNUC__ > 4 \
+ || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3 && !defined(__ICC)))
+# define GC_ATTR_ALLOC_SIZE(argnum) __attribute__((__alloc_size__(argnum)))
+# else
+# define GC_ATTR_ALLOC_SIZE(argnum)
+# endif
+#endif
projects / cacao.git / blobdiff