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Annotation of OpenXM/src/kan96xx/gc-4.14/Mac_files/MacOS_Test_config.h, Revision 1.1

1.1     ! maekawa     1: /*
        !             2:        MacOS_Test_config.h
        !             3:
        !             4:        Configuration flags for Macintosh development systems.
        !             5:
        !             6:        Test version.
        !             7:
        !             8:        <Revision History>
        !             9:
        !            10:        11/16/95  pcb  Updated compilation flags to reflect latest 4.6 Makefile.
        !            11:
        !            12:        by Patrick C. Beard.
        !            13:  */
        !            14: /* Boehm, November 17, 1995 12:05 pm PST */
        !            15:
        !            16: #ifdef __MWERKS__
        !            17:
        !            18: // for CodeWarrior Pro with Metrowerks Standard Library (MSL).
        !            19: // #define MSL_USE_PRECOMPILED_HEADERS 0
        !            20: #include <ansi_prefix.mac.h>
        !            21: #ifndef __STDC__
        !            22: #define __STDC__ 0
        !            23: #endif
        !            24:
        !            25: #endif
        !            26:
        !            27: // these are defined again in gc_priv.h.
        !            28: #undef TRUE
        !            29: #undef FALSE
        !            30:
        !            31: #define ALL_INTERIOR_POINTERS  // follows interior pointers.
        !            32: //#define SILENT                               // want collection messages.
        !            33: //#define DONT_ADD_BYTE_AT_END // no padding.
        !            34: //#define SMALL_CONFIG                 // whether to a smaller heap.
        !            35: #define NO_SIGNALS                             // signals aren't real on the Macintosh.
        !            36: #define USE_TEMPORARY_MEMORY   // use Macintosh temporary memory.
        !            37:
        !            38: // CFLAGS= -O -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DSILENT
        !            39: //
        !            40: //LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
        !            41: //    -DREDIRECT_MALLOC=GC_malloc_uncollectable \
        !            42: //    -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
        !            43: //   Flags for building libgc.a -- the last two are required.
        !            44: //
        !            45: // Setjmp_test may yield overly optimistic results when compiled
        !            46: // without optimization.
        !            47: // -DSILENT disables statistics printing, and improves performance.
        !            48: // -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
        !            49: //   altered stubborn objects, at substantial performance cost.
        !            50: //   Use only for incremental collector debugging.
        !            51: // -DFIND_LEAK causes the collector to assume that all inaccessible
        !            52: //   objects should have been explicitly deallocated, and reports exceptions.
        !            53: //   Finalization and the test program are not usable in this mode.
        !            54: // -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
        !            55: //   (Clients should also define SOLARIS_THREADS and then include
        !            56: //   gc.h before performing thr_ or GC_ operations.)
        !            57: //   This is broken on nonSPARC machines.
        !            58: // -DALL_INTERIOR_POINTERS allows all pointers to the interior
        !            59: //   of objects to be recognized.  (See gc_priv.h for consequences.)
        !            60: // -DSMALL_CONFIG tries to tune the collector for small heap sizes,
        !            61: //   usually causing it to use less space in such situations.
        !            62: //   Incremental collection no longer works in this case.
        !            63: // -DLARGE_CONFIG tunes the collector for unusually large heaps.
        !            64: //   Necessary for heaps larger than about 500 MB on most machines.
        !            65: //   Recommended for heaps larger than about 64 MB.
        !            66: // -DDONT_ADD_BYTE_AT_END is meaningful only with
        !            67: //   -DALL_INTERIOR_POINTERS.  Normally -DALL_INTERIOR_POINTERS
        !            68: //   causes all objects to be padded so that pointers just past the end of
        !            69: //   an object can be recognized.  This can be expensive.  (The padding
        !            70: //   is normally more than one byte due to alignment constraints.)
        !            71: //   -DDONT_ADD_BYTE_AT_END disables the padding.
        !            72: // -DNO_SIGNALS does not disable signals during critical parts of
        !            73: //   the GC process.  This is no less correct than many malloc
        !            74: //   implementations, and it sometimes has a significant performance
        !            75: //   impact.  However, it is dangerous for many not-quite-ANSI C
        !            76: //   programs that call things like printf in asynchronous signal handlers.
        !            77: // -DOPERATOR_NEW_ARRAY declares that the C++ compiler supports the
        !            78: //   new syntax "operator new[]" for allocating and deleting arrays.
        !            79: //   See gc_cpp.h for details.  No effect on the C part of the collector.
        !            80: //   This is defined implicitly in a few environments.
        !            81: // -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
        !            82: //   as aliases for X, GC_realloc, and GC_free, respectively.
        !            83: //   Calloc is redefined in terms of the new malloc.  X should
        !            84: //   be either GC_malloc or GC_malloc_uncollectable.
        !            85: //   The former is occasionally useful for working around leaks in code
        !            86: //   you don't want to (or can't) look at.  It may not work for
        !            87: //   existing code, but it often does.  Neither works on all platforms,
        !            88: //   since some ports use malloc or calloc to obtain system memory.
        !            89: //   (Probably works for UNIX, and win32.)
        !            90: // -DNO_DEBUG removes GC_dump and the debugging routines it calls.
        !            91: //   Reduces code size slightly at the expense of debuggability.

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