* error.c (compile_err_append, compile_warn_print, warn_print): use
  rb_write_error_str() instead of writing to rb_stderr directly.
* io.c (rb_write_error_str): a stopgap measure not to unblock GVL.
  warning from require seems to still have race condition errors.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  argument.

* load.c (rb_load_internal): ditto.

* eval_intern.h (rb_vm_jump_tag_but_local_jump): ditto.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* array.c (empty_ary_alloc, ary_new): added array create DTrace probe.

* compile.c (rb_insns_name): allowing DTrace probes to access
  instruction sequence name.

* Makefile.in: translate probes.d file to appropriate header file.

* common.mk: declare dependencies on the DTrace header.

* configure.in: add a test for existence of DTrace.

* eval.c (setup_exception): add a probe for when an exception is
  raised.

* gc.c: Add DTrace probes for mark begin and end, and sweep begin and
  end.

* hash.c (empty_hash_alloc): Add a probe for hash allocation.

* insns.def: Add probes for function entry and return.

* internal.h: function declaration for compile.c change.

* load.c (rb_f_load): add probes for `load` entry and exit, require
  entry and exit, and wrapping search_required for load path search.

* object.c (rb_obj_alloc): added a probe for general object creation.

* parse.y (yycompile0): added a probe around parse and compile phase.

* string.c (empty_str_alloc, str_new): DTrace probes for string
  allocation.

* test/dtrace/*: tests for DTrace probes.

* vm.c (vm_invoke_proc): add probes for function return on exception
  raise, hash create, and instruction sequence execution.

* vm_core.h: add probe declarations for function entry and exit.

* vm_dump.c: add probes header file.

* vm_eval.c (vm_call0_cfunc, vm_call0_cfunc_with_frame): add probe on
  function entry and return.

* vm_exec.c: expose instruction number to instruction name function.

* vm_insnshelper.c: add function entry and exit probes for cfunc
  methods.

* vm_insnhelper.h: vm usage information is always collected, so
  uncomment the functions.

12 19:14:50 2012  Akinori MUSHA  <knu@iDaemons.org>

* configure.in (isinf, isnan): isinf() and isnan() are macros on
  DragonFly which cannot be found by AC_REPLACE_FUNCS().  This
  workaround enforces the fact that they exist on DragonFly.

12 15:59:38 2012  Shugo Maeda  <shugo@ruby-lang.org>

* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo),
  vm_insnhelper.c (vm_search_method): revert r37616 because it's too
  slow.  [ruby-dev:46477]

* test/ruby/test_refinement.rb (test_inline_method_cache): skip
  the test until the bug is fixed efficiently.

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* file.c (rb_get_path_check_to_string): extract from
  rb_get_path_check(). We change the spec not to call to_path of
  String object.

* file.c (rb_get_path_check_convert): extract from rb_get_path_check().

* file.c (rb_get_path_check): follow the above change.

* file.c (rb_file_expand_path_fast): remove check_expand_path_args().
  Instead we call it in load.c.

* file.c (rb_find_file_ext_safe): use rb_get_expanded_load_path() to
  reduce expand cost.

* file.c (rb_find_file_safe): ditto.

* internal.h (rb_get_expanded_load_path): add a declaration.

* internal.h (rb_get_path_check_to_string, rb_get_path_check_convert):
  add declarations.

* load.c (rb_construct_expanded_load_path): fix for compatibility.
  Same checks in rb_get_path_check() are added. We don't replace
  $LOAD_PATH and ensure that String object of $LOAD_PATH are frozen.
  We don't freeze non String object and expand it every times. We add
  arguments for expanding load path partially and checking if load path
  have relative paths or non String objects.

* load.c (load_path_getcwd): get current working directory for checking
  if it's changed when getting load path.

* load.c (rb_get_expanded_load_path): fix for rebuilding cache properly.
  We check if current working directory is changed and rebuild expanded
  load path cache. We expand paths which start with ~ (User HOME) and
  non String objects every times for compatibility. We make this
  accessible from other source files.

* load.c (rb_feature_provided): call rb_get_path() since we changed
  rb_file_expand_path_fast() not to call it.

* load.c (Init_load): initialize vm->load_path_check_cache.

* vm.c (rb_vm_mark): mark vm->load_path_check_cache for GC.

* vm_core.h (rb_vm_struct): add vm->load_path_check_cache to store data
  to check load path cache validity.

* test/ruby/test_require.rb (TestRequire): add tests for require
  compatibility related to cached expanded load path.
  [ruby-core:47970] [Bug #7158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37482 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* load.c (rb_get_expanded_load_path): cache the expanded load
  path.  This saves 4KB of allocation and some stats for every
  element of the load path (so nearly a MB in my Rails app)
  on every require.

* load.c (rb_construct_expanded_load_path): ensure that $LOAD_PATH
  entries are frozen strings.  The user must mutate $LOAD_PATH
  itself rather than its individual entries.

* vm_core.h (rb_vm_struct): add fields.

* vm.c (rb_vm_mark): mark new fields.

* ruby.c (process_options): modify $LOAD_PATH directly rather than
  its elements.
  Patch by Greg Price.
  [ruby-core:47970] [Bug #7158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* load.c (rb_feature_p, rb_provide_feature): index $LOADED_FEATURES
  so that require isn't so slow.

* load.c (rb_provide_feature, get_loaded_features_index): ensure
  that $LOADED_FEATURES entries are frozen strings.  The user
  must mutate $LOADED_FEATURES itself rather than its individual
  entries.

* load.c (reset_loaded_features_snapshot): add a new function to reset
  vm->loaded_features_snapshot.

* load.c (get_loaded_features_index_raw): add a new function to get
  the loaded-features index.

* load.c (features_index_add_single): add a new function to add to the
  loaded-features index a single feature.

* load.c (features_index_add): add a new function to add to the
  loaded-features index all the required entries for `feature`.

* vm_core.h (rb_vm_struct): add fields.

* vm.c (rb_vm_mark): mark new fields.

* include/ruby/intern.h (rb_hash_clear): declare function.

* hash.c (rb_hash_clear): make function non-static.
  Patch by Greg Price.
  [ruby-core:47970] [Bug #7158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37480 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* array.c (rb_ary_shared_with_p): new function.
  Expose whether two arrays are shared (read-only, C only).

* include/ruby/intern.h (rb_ary_shared_with_p): declare.
  Patch by Greg Price.
  [ruby-core:47970] [Bug #7158]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* load.c (loaded_feature_path): clarify and briefly comment
  function.  These clarifications have no effect on the behavior
  of the function.

* load.c (rb_feature_p): explain the search loop.  Especially
  useful because the logic is complicated as described in the
  second paragraph.
  Patch by Greg Price.
  [ruby-core:47970] [Bug #7158]

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