rb_control_frame_t::klass.
[Bug #11278], [Bug #11279]
rb_method_entry_t data belong to modules/classes.
rb_method_entry_t::owner points defined module or class.
module M
def foo; end
end
In this case, owner is M.
rb_callable_method_entry_t data belong to only classes.
For modules, MRI creates corresponding T_ICLASS internally.
rb_callable_method_entry_t can also belong to T_ICLASS.
rb_callable_method_entry_t::defined_class points T_CLASS or
T_ICLASS.
rb_method_entry_t data for classes (not for modules) are also
rb_callable_method_entry_t data because it is completely same data.
In this case, rb_method_entry_t::owner == rb_method_entry_t::defined_class.
For example, there are classes C and D, and incldues M,
class C; include M; end
class D; include M; end
then, two T_ICLASS objects for C's super class and D's super class
will be created.
When C.new.foo is called, then M#foo is searcheed and
rb_callable_method_t data is used by VM to invoke M#foo.
rb_method_entry_t data is only one for M#foo.
However, rb_callable_method_entry_t data are two (and can be more).
It is proportional to the number of including (and prepending)
classes (the number of T_ICLASS which point to the module).
Now, created rb_callable_method_entry_t are collected when
the original module M was modified. We can think it is a cache.
We need to select what kind of method entry data is needed.
To operate definition, then you need to use rb_method_entry_t.
You can access them by the following functions.
* rb_method_entry(VALUE klass, ID id);
* rb_method_entry_with_refinements(VALUE klass, ID id);
* rb_method_entry_without_refinements(VALUE klass, ID id);
* rb_resolve_refined_method(VALUE refinements, const rb_method_entry_t *me);
To invoke methods, then you need to use rb_callable_method_entry_t
which you can get by the following APIs corresponding to the
above listed functions.
* rb_callable_method_entry(VALUE klass, ID id);
* rb_callable_method_entry_with_refinements(VALUE klass, ID id);
* rb_callable_method_entry_without_refinements(VALUE klass, ID id);
* rb_resolve_refined_method_callable(VALUE refinements, const rb_callable_method_entry_t *me);
VM pushes rb_callable_method_entry_t, so that rb_vm_frame_method_entry()
returns rb_callable_method_entry_t.
You can check a super class of current method by
rb_callable_method_entry_t::defined_class.
* method.h: renamed from rb_method_entry_t::klass to
rb_method_entry_t::owner.
* internal.h: add rb_classext_struct::callable_m_tbl to cache
rb_callable_method_entry_t data.
We need to consider abotu this field again because it is only
active for T_ICLASS.
* class.c (method_entry_i): ditto.
* class.c (rb_define_attr): rb_method_entry() does not takes
defiend_class_ptr.
* gc.c (mark_method_entry): mark RCLASS_CALLABLE_M_TBL() for T_ICLASS.
* cont.c (fiber_init): rb_control_frame_t::klass is removed.
* proc.c: fix `struct METHOD' data structure because
rb_callable_method_t has all information.
* vm_core.h: remove several fields.
* rb_control_frame_t::klass.
* rb_block_t::klass.
And catch up changes.
* eval.c: catch up changes.
* gc.c: ditto.
* insns.def: ditto.
* vm.c: ditto.
* vm_args.c: ditto.
* vm_backtrace.c: ditto.
* vm_dump.c: ditto.
* vm_eval.c: ditto.
* vm_insnhelper.c: ditto.
* vm_method.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51126 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Motivation and new data structure are described in [Bug #11203].
This patch also solve the following issues.
* [Bug #11200] Memory leak of method entries
* [Bug #11046] __callee__ returns incorrect method name in orphan
proc
* test/ruby/test_method.rb: add a test for [Bug #11046].
* vm_core.h: remvoe rb_control_frame_t::me. me is located at value
stack.
* vm_core.h, gc.c, vm_method.c: remove unlinked_method... codes
because method entries are simple VALUEs.
* method.h: Now, all method entries has own independent method
definititons. Strictly speaking, this change is not essential,
but for future changes.
* rb_method_entry_t::flag is move to rb_method_definition_t::flag.
* rb_method_definition_t::alias_count is now
rb_method_definition_t::alias_count_ptr, a pointer to the counter.
* vm_core.h, vm_insnhelper.c (rb_vm_frame_method_entry) added to
search the current method entry from value stack.
* vm_insnhelper.c (VM_CHECK_MODE): introduced to enable/disable
assertions.
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* vm_dump.c (preface_dump): move the statement to include crash
report log file from REPORTBUG_MSG in error.c.
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* vm_dump.c (preface_dump): highlight very important but very
ofhen ignored message like a Xmas tree.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50472 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: check also procstat_getvmmap, which is not
available on FreeBSD 9. [ruby-core:68468] [Bug #10954]
* vm_dump.c (procstat_vm): use kinfo_getvmmap instead if
procstat_getvmmap is not available.
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* vm_dump.c (rb_vm_bugreport): get rid of making new strings
inside signal context.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49780 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_dump.c (rb_vm_bugreport): check by configured result instead
of system name for old FreeBSD. based on a patch by Steve Wills
at [ruby-core:67655]. [Bug #10752]
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https://bugs.ruby-lang.org/issues/10440#change-49694
* change terminology `arg' to `param'.
* move rb_iseq_t::arg_* to rb_iseq_t::param.
* move rb_iseq_t::arg_size to rb_iseq_t::param::size.
* move rb_iseq_t::argc to rb_iseq_t::param::lead_num.
* move rb_iseq_t::arg_opts to rb_iseq_t::param::opt_num.
* move rb_iseq_t::arg_rest to rb_iseq_t::param::rest_start.
* move rb_iseq_t::arg_post_num to rb_iseq_t::param::post_num.
* move rb_iseq_t::arg_post_start to rb_iseq_t::param::post_start.
* move rb_iseq_t::arg_block to rb_iseq_t::param::block_start.
* move rb_iseq_t::arg_keyword* to rb_iseq_t::param::keyword.
rb_iseq_t::param::keyword is allocated only when keyword
parameters are available.
* introduce rb_iseq_t::param::flags to represent parameter
availability. For example, rb_iseq_t::param:🎏:has_kw
represents that this iseq has keyword parameters and
rb_iseq_t::param::keyword is allocated.
We don't need to compare with -1 to check availability.
* remove rb_iseq_t::arg_simple.
* compile.c: catch up this change.
* iseq.c: ditto.
* proc.c: ditto.
* vm.c, vm_args.c, vm_dump.c, vm_insnhelper.c: ditto.
* iseq.c (iseq_data_to_ary): support keyword argument.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48242 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* error.c (rb_bug_context): new function to report bug with
context.
* vm_dump.c (rb_vm_bugreport): accepts `ucontext_t` argument to
dump machine regisiters. based on [GH-584].
* signal.c (sigbus, sigsegv): dump machine regisiters if available.
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* vm_dump.c (backtrace): adjust style, inserting breaks between
type, function name with its arguments, and its body.
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the basis of base addresses comparison.
* addr2line.c: use uintptr_t instead of intptr_t for poinrters.
* addr2line.c (rb_dump_backtrace_with_lines): don't use syms.
* vm_dump.c (rb_print_backtrace): ditto.
* addr2line.h: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_dump.c (rb_vmdebug_debug_print_pre): suppress warning on a
platform ptrdiff_t is shorter than long int.
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PC is cached into local stack and cfp->pc is incorrent at next of
branch or jump.
* vm_exec.h (DEBUG_ENTER_INSN): catch up this change.
* vm_core.h: update signature of rb_vmdebug_debug_print_pre.
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beyond signal trampoline, and as described in r38342 it can't
trace on -O because it see stack frame pointers.
libunwind unw_backtrace see dwarf information in the binary
and it works with -O (without frame pointers).
* configure.in: remove r38342's hack and check libunwind.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_dump.c (rb_vm_bugreport): show the most important message, Crash
Report log information, first.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38990 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
in order to avoid segv. anyone can fix addr2line?
[Bug #7597] [ruby-dev:46786]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38533 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
At least on FreeBSD ruby will crash on getting C backtrace
when it is compiled with other than -O0.
* vm_dump.c: enable backtrace on FreeBSD even if with optimizations.
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* vm_dump.c (rb_vm_bugreport): get rid of calling methods in sigsegv
handler. based on a patch by charliesome (Charlie Somerville)
[ruby-core:49573] [Bug #7402]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38329 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
"vm_dump.c: no methods in segv handler"
It may cause segv:
20121130T090301Z.diff.html.gz
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* vm_dump.c (rb_vm_bugreport): get rid of calling methods in sigsegv
handler. based on a patch by charliesome (Charlie Somerville)
[ruby-core:49573] [Bug #7402]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38041 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
on it.
* common.mk (vm_dump.$(OBJEXT)): remove dependency on probes.h
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37733 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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