diff options
Diffstat (limited to 'gcc-4.2.1/boehm-gc/doc/README.Mac')
| -rw-r--r-- | gcc-4.2.1/boehm-gc/doc/README.Mac | 385 |
1 files changed, 0 insertions, 385 deletions
diff --git a/gcc-4.2.1/boehm-gc/doc/README.Mac b/gcc-4.2.1/boehm-gc/doc/README.Mac deleted file mode 100644 index 04f468251..000000000 --- a/gcc-4.2.1/boehm-gc/doc/README.Mac +++ /dev/null @@ -1,385 +0,0 @@ -Patrick Beard's Notes for building GC v4.12 with CodeWarrior Pro 2: ----------------------------------------------------------------------------- -The current build environment for the collector is CodeWarrior Pro 2. -Projects for CodeWarrior Pro 2 (and for quite a few older versions) -are distributed in the file Mac_projects.sit.hqx. The project file -:Mac_projects:gc.prj builds static library versions of the collector. -:Mac_projects:gctest.prj builds the GC test suite. - -Configuring the collector is still done by editing the files -:Mac_files:MacOS_config.h and :Mac_files:MacOS_Test_config.h. - -Lars Farm's suggestions on building the collector: ----------------------------------------------------------------------------- -Garbage Collection on MacOS - a manual 'MakeFile' -------------------------------------------------- - -Project files and IDE's are great on the Macintosh, but they do have -problems when used as distribution media. This note tries to provide -porting instructions in pure TEXT form to avoid those problems. A manual -'makefile' if you like. - - GC version: 4.12a2 - Codewarrior: CWPro1 - date: 18 July 1997 - -The notes may or may not apply to earlier or later versions of the -GC/CWPro. Actually, they do apply to earlier versions of both except that -until recently a project could only build one target so each target was a -separate project. The notes will most likely apply to future versions too. -Possibly with minor tweaks. - -This is just to record my experiences. These notes do not mean I now -provide a supported port of the GC to MacOS. It works for me. If it works -for you, great. If it doesn't, sorry, try again...;-) Still, if you find -errors, please let me know. - - mailto: lars.farm@ite.mh.se - - address: Lars Farm - Krönvägen 33b - 856 44 Sundsvall - Sweden - -Porting to MacOS is a bit more complex than it first seems. Which MacOS? -68K/PowerPC? Which compiler? Each supports both 68K and PowerPC and offer a -large number of (unique to each environment) compiler settings. Each -combination of compiler/68K/PPC/settings require a unique combination of -standard libraries. And the IDE's does not select them for you. They don't -even check that the library is built with compatible setting and this is -the major source of problems when porting the GC (and otherwise too). - -You will have to make choices when you configure the GC. I've made some -choices here, but there are other combinations of settings and #defines -that work too. - -As for target settings the major obstacles may be: -- 68K Processor: check "4-byte Ints". -- PPC Processor: uncheck "Store Static Data in TOC". - -What you need to do: -=================== - -1) Build the GC as a library -2) Test that the library works with 'test.c'. -3) Test that the C++ interface 'gc_cpp.cc/h' works with 'test_cpp.cc'. - -1) The Libraries: -================= -I made one project with four targets (68K/PPC tempmem or appheap). One target -will suffice if you're able to decide which one you want. I wasn't... - -Codewarrior allows a large number of compiler/linker settings. I used these: - -Settings shared by all targets: ------------------------------- -o Access Paths: - - User Paths: the GC folder - - System Paths: {Compiler}:Metrowerks Standard Library: - {Compiler}:MacOS Support:Headers: - {Compiler}:MacOS Support:MacHeaders: -o C/C++ language: - - inlining: normal - - direct to SOM: off - - enable/check: exceptions, RTTI, bool (and if you like pool strings) - -PowerPC target settings ------------------------ -o Target Settings: - - name of target - - MacOS PPC Linker -o PPC Target - - name of library -o C/C++ language - - prefix file as described below -o PPC Processor - - Struct Alignment: PowerPC - - uncheck "Store Static Data in TOC" -- important! - I don't think the others matter, I use full optimization and its ok -o PPC Linker - - Factory Settings (SYM file with full paths, faster linking, dead-strip - static init, Main: __start) - - -68K target settings -------------------- -o Target Settings: - - name of target - - MacOS 68K Linker -o 68K Target - - name of library - - A5 relative data -o C/C++ language - - prefix file as described below -o 68K Processor - - Code model: smart - - Struct alignment: 68K - - FP: SANE - - enable 4-Byte Ints -- important! - I don't think the others matter. I selected... - - enable: 68020 - - enable: global register allocation -o IR Optimizer - - enable: Optimize Space, Optimize Speed - I suppose the others would work too, but haven't tried... -o 68K Linker - - Factory Settings (New Style MacsBug,SYM file with full paths, - A6 Frames, fast link, Merge compiler glue into segment 1, - dead-strip static init) - -Prefix Files to configure the GC sources ----------------------------------------- -The Codewarrior equivalent of commandline compilers -DNAME=X is to use -prefix-files. A TEXT file that is automatically #included before the first byte -of every source file. I used these: - ----- ( cut here ) ---- gc_prefix_tempmem.h -- 68K and PPC ----- - #include "gc_prefix_common.h" - #undef USE_TEMPORARY_MEMORY - #define USE_TEMPORARY_MEMORY ----- ( cut here ) ---- gc_prefix_appmem.h -- 68K and PPC ----- - #include "gc_prefix_common.h" - #undef USE_TEMPORARY_MEMORY -// #define USE_TEMPORARY_MEMORY - ----- ( cut here ) ---- gc_prefix_common.h -------------------- -// gc_prefix_common.h -// ------------------ -// Codewarrior prefix file to configure the GC libraries -// -// prefix files are the Codewarrior equivalent of the -// command line option -Dname=x frequently seen in makefiles - -#if !__MWERKS__ - #error only tried this with Codewarrior -#endif - -#if macintosh - #define MSL_USE_PRECOMPILED_HEADERS 0 - #include <ansi_prefix.mac.h> - #ifndef __STDC__ - #define __STDC__ 0 - #endif - - // See list of #defines to configure the library in: 'MakeFile' - // see also README - - #define SILENT // no collection messages. In case - // of trouble you might want this off - #define ALL_INTERIOR_POINTERS // follows interior pointers. -//#define DONT_ADD_BYTE_AT_END // disables the padding if defined. -//#define SMALL_CONFIG // whether to use a smaller heap. - #define NO_SIGNALS // signals aren't real on the Macintosh. - #define ATOMIC_UNCOLLECTABLE // GC_malloc_atomic_uncollectable() - - // define either or none as per personal preference - // used in malloc.c - #define REDIRECT_MALLOC GC_malloc -//#define REDIRECT_MALLOC GC_malloc_uncollectable - // if REDIRECT_MALLOC is #defined make sure that the GC library - // is listed before the ANSI/ISO libs in the Codewarrior - // 'Link order' panel -//#define IGNORE_FREE - - // mac specific configs -//#define USE_TEMPORARY_MEMORY // use Macintosh temporary memory. -//#define SHARED_LIBRARY_BUILD // build for use in a shared library. - -#else - // could build Win32 here too, or in the future - // Rhapsody PPC-mach, Rhapsody PPC-MacOS, - // Rhapsody Intel-mach, Rhapsody Intel-Win32,... - // ... ugh this will get messy ... -#endif - -// make sure ints are at least 32-bit -// ( could be set to 16-bit by compiler settings (68K) ) - -struct gc_private_assert_intsize_{ char x[ sizeof(int)>=4 ? 1 : 0 ]; }; - -#if __powerc - #if __option(toc_data) - #error turn off "store static data in TOC" when using GC - // ... or find a way to add TOC to the root set...(?) - #endif -#endif ----- ( cut here ) ---- end of gc_prefix_common.h ----------------- - -Files to build the GC libraries: --------------------------------- - allchblk.c - alloc.c - blacklst.c - checksums.c - dbg_mlc.c - finalize.c - headers.c - mach_dep.c - MacOS.c -- contains MacOS code - malloc.c - mallocx.c - mark.c - mark_rts.c - misc.c - new_hblk.c - obj_map.c - os_dep.c -- contains MacOS code - ptr_chck.c - reclaim.c - stubborn.c - typd_mlc.c - gc++.cc -- this is 'gc_cpp.cc' with less 'inline' and - -- throw std::bad_alloc when out of memory - -- gc_cpp.cc works just fine too - -2) Test that the library works with 'test.c'. -============================================= - -The test app is just an ordinary ANSI-C console app. Make sure settings -match the library you're testing. - -Files ------ - test.c - the GC library to test -- link order before ANSI libs - suitable Mac+ANSI libraries - -prefix: ------- ----- ( cut here ) ---- gc_prefix_testlib.h -- all libs ----- -#define MSL_USE_PRECOMPILED_HEADERS 0 -#include <ansi_prefix.mac.h> -#undef NDEBUG - -#define ALL_INTERIOR_POINTERS /* for GC_priv.h */ ----- ( cut here ) ---- - -3) Test that the C++ interface 'gc_cpp.cc/h' works with 'test_cpp.cc'. - -The test app is just an ordinary ANSI-C console app. Make sure settings match -the library you're testing. - -Files ------ - test_cpp.cc - the GC library to test -- link order before ANSI libs - suitable Mac+ANSI libraries - -prefix: ------- -same as for test.c - -For convenience I used one test-project with several targets so that all -test apps are build at once. Two for each library to test: test.c and -gc_app.cc. When I was satisfied that the libraries were ok. I put the -libraries + gc.h + the c++ interface-file in a folder that I then put into -the MSL hierarchy so that I don't have to alter access-paths in projects -that use the GC. - -After that, just add the proper GC library to your project and the GC is in -action! malloc will call GC_malloc and free GC_free, new/delete too. You -don't have to call free or delete. You may have to be a bit cautious about -delete if you're freeing other resources than RAM. See gc_cpp.h. You can -also keep coding as always with delete/free. That works too. If you want, -"include <gc.h> and tweak it's use a bit. - -Symantec SPM -============ -It has been a while since I tried the GC in SPM, but I think that the above -instructions should be sufficient to guide you through in SPM too. SPM -needs to know where the global data is. Use the files 'datastart.c' and -'dataend.c'. Put 'datastart.c' at the top of your project and 'dataend.c' -at the bottom of your project so that all data is surrounded. This is not -needed in Codewarrior because it provides intrinsic variables -__datastart__, __data_end__ that wraps all globals. - -Source Changes (GC 4.12a2) -========================== -Very few. Just one tiny in the GC, not strictly needed. -- MacOS.c line 131 in routine GC_MacFreeTemporaryMemory() - change # if !defined(SHARED_LIBRARY_BUILD) - to # if !defined(SILENT) && !defined(SHARED_LIBRARY_BUILD) - To turn off a message when the application quits (actually, I faked - this change by #defining SHARED_LIBRARY_BUILD in a statically linked - library for more than a year without ill effects but perhaps this is - better). - -- test_cpp.cc - made the first lines of main() look like this: - ------------ - int main( int argc, char* argv[] ) { - #endif - #if macintosh // MacOS - char* argv_[] = {"test_cpp","10"}; // doesn't - argv=argv_; // have a - argc = sizeof(argv_)/sizeof(argv_[0]); // commandline - #endif // - - int i, iters, n; - # ifndef __GNUC__ - alloc dummy_to_fool_the_compiler_into_doing_things_it_currently_cant_handle; - ------------ - -- config.h [now gcconfig.h] - __MWERKS__ does not have to mean MACOS. You can use Codewarrior to - build a Win32 or BeOS library and soon a Rhapsody library. You may - have to change that #if... - - - - It worked for me, hope it works for you. - - Lars Farm - 18 July 1997 ----------------------------------------------------------------------------- - - -Patrick Beard's instructions (may be dated): - -v4.3 of the collector now runs under Symantec C++/THINK C v7.0.4, and -Metrowerks C/C++ v4.5 both 68K and PowerPC. Project files are provided -to build and test the collector under both development systems. - -Configuration -------------- - -To configure the collector, under both development systems, a prefix file -is used to set preprocessor directives. This file is called "MacOS_config.h". -Also to test the collector, "MacOS_Test_config.h" is provided. - -Testing -------- - -To test the collector (always a good idea), build one of the gctest projects, -gctest.¹ (Symantec C++/THINK C), mw/gctest.68K.¹, or mw/gctest.PPC.¹. The -test will ask you how many times to run; 1 should be sufficient. - -Building --------- - -For your convenience project files for the major Macintosh development -systems are provided. - -For Symantec C++/THINK C, you must build the two projects gclib-1.¹ and -gclib-2.¹. It has to be split up because the collector has more than 32k -of static data and no library can have more than this in the Symantec -environment. (Future versions will probably fix this.) - -For Metrowerks C/C++ 4.5 you build gc.68K.¹/gc.PPC.¹ and the result will -be a library called gc.68K.lib/gc.PPC.lib. - -Using ------ - -Under Symantec C++/THINK C, you can just add the gclib-1.¹ and gclib-2.¹ -projects to your own project. Under Metrowerks, you add gc.68K.lib or -gc.PPC.lib and two additional files. You add the files called datastart.c -and dataend.c to your project, bracketing all files that use the collector. -See mw/gctest.¹ for an example. - -Include the projects/libraries you built above into your own project, -#include "gc.h", and call GC_malloc. You don't have to call GC_free. - - -Patrick C. Beard -January 4, 1995 |