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authorAkinori Ito <aito@eie.yz.yamagata-u.ac.jp>2001-11-08 05:14:08 +0000
committerAkinori Ito <aito@eie.yz.yamagata-u.ac.jp>2001-11-08 05:14:08 +0000
commit68a07bf03b7624c9924065cce9ffa45497225834 (patch)
treec2adb06a909a8594445e4a3f8587c4bad46e3ecd /gc/Mac_files/MacOS_Test_config.h
downloadw3m-68a07bf03b7624c9924065cce9ffa45497225834.tar.gz
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+/*
+ MacOS_Test_config.h
+
+ Configuration flags for Macintosh development systems.
+
+ Test version.
+
+ <Revision History>
+
+ 11/16/95 pcb Updated compilation flags to reflect latest 4.6 Makefile.
+
+ by Patrick C. Beard.
+ */
+/* Boehm, November 17, 1995 12:05 pm PST */
+
+#ifdef __MWERKS__
+
+// for CodeWarrior Pro with Metrowerks Standard Library (MSL).
+// #define MSL_USE_PRECOMPILED_HEADERS 0
+#include <ansi_prefix.mac.h>
+#ifndef __STDC__
+#define __STDC__ 0
+#endif
+
+#endif
+
+// these are defined again in gc_priv.h.
+#undef TRUE
+#undef FALSE
+
+#define ALL_INTERIOR_POINTERS // follows interior pointers.
+//#define SILENT // want collection messages.
+//#define DONT_ADD_BYTE_AT_END // no padding.
+//#define SMALL_CONFIG // whether to a smaller heap.
+#define NO_SIGNALS // signals aren't real on the Macintosh.
+#define USE_TEMPORARY_MEMORY // use Macintosh temporary memory.
+
+// CFLAGS= -O -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DSILENT
+//
+//LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
+// -DREDIRECT_MALLOC=GC_malloc_uncollectable \
+// -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
+// Flags for building libgc.a -- the last two are required.
+//
+// Setjmp_test may yield overly optimistic results when compiled
+// without optimization.
+// -DSILENT disables statistics printing, and improves performance.
+// -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
+// altered stubborn objects, at substantial performance cost.
+// Use only for incremental collector debugging.
+// -DFIND_LEAK causes the collector to assume that all inaccessible
+// objects should have been explicitly deallocated, and reports exceptions.
+// Finalization and the test program are not usable in this mode.
+// -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
+// (Clients should also define SOLARIS_THREADS and then include
+// gc.h before performing thr_ or GC_ operations.)
+// This is broken on nonSPARC machines.
+// -DALL_INTERIOR_POINTERS allows all pointers to the interior
+// of objects to be recognized. (See gc_priv.h for consequences.)
+// -DSMALL_CONFIG tries to tune the collector for small heap sizes,
+// usually causing it to use less space in such situations.
+// Incremental collection no longer works in this case.
+// -DLARGE_CONFIG tunes the collector for unusually large heaps.
+// Necessary for heaps larger than about 500 MB on most machines.
+// Recommended for heaps larger than about 64 MB.
+// -DDONT_ADD_BYTE_AT_END is meaningful only with
+// -DALL_INTERIOR_POINTERS. Normally -DALL_INTERIOR_POINTERS
+// causes all objects to be padded so that pointers just past the end of
+// an object can be recognized. This can be expensive. (The padding
+// is normally more than one byte due to alignment constraints.)
+// -DDONT_ADD_BYTE_AT_END disables the padding.
+// -DNO_SIGNALS does not disable signals during critical parts of
+// the GC process. This is no less correct than many malloc
+// implementations, and it sometimes has a significant performance
+// impact. However, it is dangerous for many not-quite-ANSI C
+// programs that call things like printf in asynchronous signal handlers.
+// -DOPERATOR_NEW_ARRAY declares that the C++ compiler supports the
+// new syntax "operator new[]" for allocating and deleting arrays.
+// See gc_cpp.h for details. No effect on the C part of the collector.
+// This is defined implicitly in a few environments.
+// -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
+// as aliases for X, GC_realloc, and GC_free, respectively.
+// Calloc is redefined in terms of the new malloc. X should
+// be either GC_malloc or GC_malloc_uncollectable.
+// The former is occasionally useful for working around leaks in code
+// you don't want to (or can't) look at. It may not work for
+// existing code, but it often does. Neither works on all platforms,
+// since some ports use malloc or calloc to obtain system memory.
+// (Probably works for UNIX, and win32.)
+// -DNO_DEBUG removes GC_dump and the debugging routines it calls.
+// Reduces code size slightly at the expense of debuggability.