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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.441
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.441
+Problem: Newer versions of MzScheme (Racket) require earlier (trampolined)
+ initialisation.
+Solution: Call mzscheme_main() early in main(). (Sergey Khorev)
+Files: src/Make_mvc.mak, src/if_mzsch.c, src/main.c,
+ src/proto/if_mzsch.pro
+
+
+*** ../vim-7.3.440/src/Make_mvc.mak 2011-09-14 19:01:38.000000000 +0200
+--- src/Make_mvc.mak 2012-02-12 01:46:05.000000000 +0100
+***************
+*** 740,745 ****
+--- 740,747 ----
+ !endif
+ !endif
+ MZSCHEME_OBJ = $(OUTDIR)\if_mzsch.obj
++ # increase stack size
++ MZSCHEME_LIB = $(MZSCHEME_LIB) /STACK:8388608
+ !endif
+
+ # Perl interface
+*** ../vim-7.3.440/src/if_mzsch.c 2010-11-03 21:59:23.000000000 +0100
+--- src/if_mzsch.c 2012-02-12 01:47:31.000000000 +0100
+***************
+*** 31,38 ****
+ * depend". */
+ #if defined(FEAT_MZSCHEME) || defined(PROTO)
+
+- #include <assert.h>
+-
+ /* Base data structures */
+ #define SCHEME_VIMBUFFERP(obj) SAME_TYPE(SCHEME_TYPE(obj), mz_buffer_type)
+ #define SCHEME_VIMWINDOWP(obj) SAME_TYPE(SCHEME_TYPE(obj), mz_window_type)
+--- 31,36 ----
+***************
+*** 559,575 ****
+ hMzSch = vimLoadLib(sch_dll);
+ hMzGC = vimLoadLib(gc_dll);
+
+! if (!hMzSch)
+ {
+ if (verbose)
+! EMSG2(_(e_loadlib), sch_dll);
+ return FAIL;
+ }
+
+! if (!hMzGC)
+ {
+ if (verbose)
+! EMSG2(_(e_loadlib), gc_dll);
+ return FAIL;
+ }
+
+--- 557,573 ----
+ hMzSch = vimLoadLib(sch_dll);
+ hMzGC = vimLoadLib(gc_dll);
+
+! if (!hMzGC)
+ {
+ if (verbose)
+! EMSG2(_(e_loadlib), gc_dll);
+ return FAIL;
+ }
+
+! if (!hMzSch)
+ {
+ if (verbose)
+! EMSG2(_(e_loadlib), sch_dll);
+ return FAIL;
+ }
+
+***************
+*** 798,862 ****
+ static __declspec(thread) void *tls_space;
+ #endif
+
+! void
+! mzscheme_main(void)
+ {
+ #if MZSCHEME_VERSION_MAJOR >= 500 && defined(WIN32) && defined(USE_THREAD_LOCAL)
+ scheme_register_tls_space(&tls_space, 0);
+ #endif
+! #if defined(MZ_PRECISE_GC) && MZSCHEME_VERSION_MAJOR >= 400
+! /* use trampoline for precise GC in MzScheme >= 4.x */
+! scheme_main_setup(TRUE, mzscheme_env_main, 0, NULL);
+ #else
+! mzscheme_env_main(NULL, 0, NULL);
+ #endif
+ }
+
+ static int
+! mzscheme_env_main(Scheme_Env *env, int argc UNUSED, char **argv UNUSED)
+ {
+! /* neither argument nor return values are used */
+! #ifdef MZ_PRECISE_GC
+! # if MZSCHEME_VERSION_MAJOR < 400
+! /*
+! * Starting from version 4.x, embedding applications must use
+! * scheme_main_setup/scheme_main_stack_setup trampolines
+! * rather than setting stack base directly with scheme_set_stack_base
+! */
+ Scheme_Object *dummy = NULL;
+ MZ_GC_DECL_REG(1);
+ MZ_GC_VAR_IN_REG(0, dummy);
+
+ stack_base = &__gc_var_stack__;
+ # else
+- /* environment has been created by us by Scheme */
+- environment = env;
+- # endif
+- /*
+- * In 4.x, all activities must be performed inside trampoline
+- * so we are forced to initialise GC immediately
+- * This can be postponed in 3.x but I see no point in implementing
+- * a feature which will work in older versions only.
+- * One would better use conservative GC if he needs dynamic MzScheme
+- */
+- mzscheme_init();
+- #else
+ int dummy = 0;
+ stack_base = (void *)&dummy;
+ #endif
+! main_loop(FALSE, FALSE);
+! #if defined(MZ_PRECISE_GC) && MZSCHEME_VERSION_MAJOR < 400
+ /* releasing dummy */
+ MZ_GC_REG();
+ MZ_GC_UNREG();
+ #endif
+! return 0;
+ }
+
+ static void
+ startup_mzscheme(void)
+ {
+! #if !defined(MZ_PRECISE_GC) || MZSCHEME_VERSION_MAJOR < 400
+ scheme_set_stack_base(stack_base, 1);
+ #endif
+
+--- 796,863 ----
+ static __declspec(thread) void *tls_space;
+ #endif
+
+! /*
+! * Since version 4.x precise GC requires trampolined startup.
+! * Futures and places in version 5.x need it too.
+! */
+! #if defined(MZ_PRECISE_GC) && MZSCHEME_VERSION_MAJOR >= 400 \
+! || MZSCHEME_VERSION_MAJOR >= 500 && (defined(MZ_USE_FUTURES) || defined(MZ_USE_PLACES))
+! # ifdef DYNAMIC_MZSCHEME
+! # error Precise GC v.4+ or Racket with futures/places do not support dynamic MzScheme
+! # endif
+! # define TRAMPOLINED_MZVIM_STARTUP
+! #endif
+!
+! int
+! mzscheme_main(int argc, char** argv)
+ {
+ #if MZSCHEME_VERSION_MAJOR >= 500 && defined(WIN32) && defined(USE_THREAD_LOCAL)
+ scheme_register_tls_space(&tls_space, 0);
+ #endif
+! #ifdef TRAMPOLINED_MZVIM_STARTUP
+! return scheme_main_setup(TRUE, mzscheme_env_main, argc, argv);
+ #else
+! return mzscheme_env_main(NULL, argc, argv);
+ #endif
+ }
+
+ static int
+! mzscheme_env_main(Scheme_Env *env, int argc, char **argv)
+ {
+! int vim_main_result;
+! #ifdef TRAMPOLINED_MZVIM_STARTUP
+! /* Scheme has created the environment for us */
+! environment = env;
+! #else
+! # ifdef MZ_PRECISE_GC
+ Scheme_Object *dummy = NULL;
+ MZ_GC_DECL_REG(1);
+ MZ_GC_VAR_IN_REG(0, dummy);
+
+ stack_base = &__gc_var_stack__;
+ # else
+ int dummy = 0;
+ stack_base = (void *)&dummy;
++ # endif
+ #endif
+!
+! /* mzscheme_main is called as a trampoline from main.
+! * We trampoline into vim_main2
+! * Passing argc, argv through from mzscheme_main
+! */
+! vim_main_result = vim_main2(argc, argv);
+! #if !defined(TRAMPOLINED_MZVIM_STARTUP) && defined(MZ_PRECISE_GC)
+ /* releasing dummy */
+ MZ_GC_REG();
+ MZ_GC_UNREG();
+ #endif
+! return vim_main_result;
+ }
+
+ static void
+ startup_mzscheme(void)
+ {
+! #ifndef TRAMPOLINED_MZVIM_STARTUP
+ scheme_set_stack_base(stack_base, 1);
+ #endif
+
+***************
+*** 868,874 ****
+ MZ_REGISTER_STATIC(exn_message);
+ MZ_REGISTER_STATIC(vim_exn);
+
+! #if !defined(MZ_PRECISE_GC) || MZSCHEME_VERSION_MAJOR < 400
+ /* in newer versions of precise GC the initial env has been created */
+ environment = scheme_basic_env();
+ #endif
+--- 869,875 ----
+ MZ_REGISTER_STATIC(exn_message);
+ MZ_REGISTER_STATIC(vim_exn);
+
+! #ifndef TRAMPOLINED_MZVIM_STARTUP
+ /* in newer versions of precise GC the initial env has been created */
+ environment = scheme_basic_env();
+ #endif
+***************
+*** 3013,3019 ****
+ MZ_GC_REG();
+
+ tmp = scheme_make_struct_names(exn_name, scheme_null, 0, &nc);
+- assert(nc <= 5);
+ mch_memmove(exn_names, tmp, nc * sizeof(Scheme_Object *));
+ MZ_GC_CHECK();
+
+--- 3014,3019 ----
+*** ../vim-7.3.440/src/main.c 2011-12-08 15:57:54.000000000 +0100
+--- src/main.c 2012-02-12 01:49:50.000000000 +0100
+***************
+*** 554,559 ****
+--- 554,584 ----
+ debug_break_level = params.use_debug_break_level;
+ #endif
+
++ #ifdef FEAT_MZSCHEME
++ /*
++ * Newer version of MzScheme (Racket) require earlier (trampolined)
++ * initialisation via scheme_main_setup.
++ * Implement this by initialising it as early as possible
++ * and splitting off remaining Vim main into vim_main2
++ */
++ {
++ /* Pack up preprocessed command line arguments.
++ * It is safe because Scheme does not access argc/argv. */
++ char *args[2];
++ args[0] = (char *)fname;
++ args[1] = (char *)&params;
++ return mzscheme_main(2, args);
++ }
++ }
++
++ int vim_main2(int argc, char **argv)
++ {
++ char_u *fname = (char_u *)argv[0];
++ mparm_T params;
++
++ memcpy(&params, argv[1], sizeof(params));
++ #endif
++
+ /* Execute --cmd arguments. */
+ exe_pre_commands(&params);
+
+***************
+*** 957,970 ****
+
+ /*
+ * Call the main command loop. This never returns.
+! * For embedded MzScheme the main_loop will be called by Scheme
+! * for proper stack tracking
+! */
+! #ifndef FEAT_MZSCHEME
+ main_loop(FALSE, FALSE);
+- #else
+- mzscheme_main();
+- #endif
+
+ return 0;
+ }
+--- 982,989 ----
+
+ /*
+ * Call the main command loop. This never returns.
+! */
+ main_loop(FALSE, FALSE);
+
+ return 0;
+ }
+*** ../vim-7.3.440/src/proto/if_mzsch.pro 2010-08-15 21:57:28.000000000 +0200
+--- src/proto/if_mzsch.pro 2012-02-12 01:50:57.000000000 +0100
+***************
+*** 14,19 ****
+ void mzvim_reset_timer __ARGS((void));
+ void *mzvim_eval_string __ARGS((char_u *str));
+ int mzthreads_allowed __ARGS((void));
+! void mzscheme_main __ARGS((void));
+ void do_mzeval __ARGS((char_u *str, typval_T *rettv));
+ /* vim: set ft=c : */
+--- 14,20 ----
+ void mzvim_reset_timer __ARGS((void));
+ void *mzvim_eval_string __ARGS((char_u *str));
+ int mzthreads_allowed __ARGS((void));
+! int mzscheme_main __ARGS((int argc, char **argv));
+ void do_mzeval __ARGS((char_u *str, typval_T *rettv));
++ int vim_main2 __ARGS((int argc, char **argv));
+ /* vim: set ft=c : */
+*** ../vim-7.3.440/src/version.c 2012-02-12 01:35:06.000000000 +0100
+--- src/version.c 2012-02-12 01:54:14.000000000 +0100
+***************
+*** 716,717 ****
+--- 716,719 ----
+ { /* Add new patch number below this line */
++ /**/
++ 441,
+ /**/
+
+--
+hundred-and-one symptoms of being an internet addict:
+43. You tell the kids they can't use the computer because "Daddy's got work to
+ do" and you don't even have a job.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
+/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\ an exciting new programming language -- http://www.Zimbu.org ///
+ \\\ help me help AIDS victims -- http://ICCF-Holland.org ///