`str2 = rb_str_new_frozen(str1)` seems to make str1 a shared string that
refers to str2, but str2 is not marked as STR_IS_SHARED_M nor
STR_NOFREE.
`rb_fstring(str2)` frees str2's ptr because it is not marked, and the
free'ed pointer is the same as str1's ptr.
After that, accessing str1 may cause use-after-free memory corruption.
I guess this is a bug of rb_str_new_frozen, but I'm completely unsure
what it should be; the string states and flags are not documented.
So, this is a workaround for [Bug #16136]. I confirmed that rspec of
activeadmin runs gracefully.
* parse.y (internal_id): number the ID serial for internal use by
counting down from the neary maximum value, not to accidentally
match permanent IDs.
[Bug #15768]
For some reason symbols (or classes) are being overridden in trunk
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit adds the new method `GC.compact` and compacting GC support.
Please see this issue for caveats:
https://bugs.ruby-lang.org/issues/15626
[Feature #15626]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Because hard to specify commits related to r67479 only.
So please commit again.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67499 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit adds the new method `GC.compact` and compacting GC support.
Please see this issue for caveats:
https://bugs.ruby-lang.org/issues/15626
[Feature #15626]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (dsymbol_alloc): set encoding directly. no need to
check existing encoding in rb_enc_associate.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63776 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* array.c (rb_to_array_type): make public to share common code
internally.
* hash.c (rb_to_hash_type): make public to share common code
internally.
* symbol.c (rb_to_symbol_type): make public to share common code
internally.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60438 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* .gdbinit (rp_id): use print_id instead of calling
lookup_id_str() in a debugger context.
* symbol.c (ID_ENTRY_UNIT): made visible to debuggers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Since the fstring table encompasses all strings in the
symbol table, we may reuse the fstring table walk to set
the class and eliminate the branch in rb_id2str.
* string.c (Init_String): use rb_cString immediately after definition
* symbol.c (rb_id2str): eliminate branch to set class
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Though rb_enc_isalnum is encoding aware function, its argument here
is *m, which is a single byte. Therefore ISDIGIT is faster.
* symbol.c (is_special_global_name): ditto.
* symbol.c (rb_enc_symname_type): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55178 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (sym_check_asciionly): more informative error message
with the encoding name and the inspected content.
[ruby-core:73398] [Feature #12016]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (rb_cstr_intern): new function to make Symbol object
like as rb_str_intern() but from pointer to the name, its length
and its encoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52495 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h (RUBY_DTRACE_CREATE_HOOK): macro to call hook at
object creation.
* vm.c (rb_source_location, rb_source_loc): retrieve source path
and line number at once.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52340 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Feature #11158]
* symbol.c (rb_sym_immortal_count): added to count immortal symbols.
* symbol.h: ditto.
* test/objspace/test_objspace.rb: add a test for this method.
* NEWS: describe about this method.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[Feature #11420]
This table only manage ID->VALUE table to reduce overhead of st.
Some functions prefixed rb_id_table_* are provided.
* id_table.c: implement rb_id_table_*.
There are several algorithms to implement it.
Now, there are roughly 4 types:
* st
* array
* hash (implemented by Yura Sokolov)
* mix of array and hash
The macro ID_TABLE_IMPL can choose implementation.
You can see detailes about them at the head of id_table.c.
At the default, I choose 34 (mix of list and hash).
This is not final decision.
Please report your suitable parameters or
your data structure.
* symbol.c: introduce rb_id_serial_t and rb_id_to_serial()
to represent ID by serial number.
* internal.h: use id_table for method tables.
* class.c, gc.c, marshal.c, vm.c, vm_method.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51541 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* hash.c (any_hash), symbol.c (dsymbol_alloc): fix dynamic symbol
hash value by restricting in Fixnum range, that is `long`.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51432 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This speeds up the hash function for dynamic symbols.
[ruby-core:70129] [Bug #11396], nearly up to Ruby 2.1 levels
Power-of-two hash sizing [Feature #9425] speeds up cases where we
have a good hash, but this means we can no longer hide behind weak
hashes. Unfortunately, object IDs do not hash well, but we may
use the extra space in the RSymbol struct to memoize the hash value.
Further optimizations should be possible. For now, the st.c APIs
force us to calculate rb_str_hash redundantly at dsym registration.
* symbol.h (struct RSymbol): add hashval field
* symbol.c (dsymbol_alloc): setup hashval field once
* hash.c (rb_any_hash): return RSymbol->hashval directly
* common.mk: hash.o depends on symbol.h
Thanks to Bruno Escherl <bruno@escherl.net> for the bug report
[ruby-core:70129] [Bug #11396]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51410 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (rb_check_id, rb_check_symbol): preserve encoding of
the given name.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51175 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (Init_sym): make dsym_fstrs a hash compared by identity
as the keys are unique fstrings, to get rid of running hash and
compare methods and causing new object allocation during garbage
collection phase. [ruby-dev:48891] [Bug #10933]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (rb_gc_free_dsymbol): delete from global fstr hash
* test/ruby/test_symbol.rb (test_symbol_fstr_leak): test for bug
[ruby-core:67268] [Bug #10686]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49090 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
entry. [Bug #10623]
* hash.c (rb_hash_delete_entry): try delete and return Qundef if there
are no corresponding entry.
* internal.h: add rb_hash_delete_entry()'s declaration.
* symbol.c: use rb_hash_delete_entry().
* thread.c: use rb_hash_delete_entry().
* ext/-test-/hash/delete.c: use rb_hash_delete_entry().
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.h (is_{local,global,instance,attrset,const,class,junk}_sym):
fix ID type names.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48470 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (global_symbols): make ids two-dimensional array of
strings and symbols, for write-barrier.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47914 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (rb_enc_symname_type): allow junk-base attrset ID
unless the stem is not an attrset name.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* symbol.c (rb_str_dynamic_intern): check if the stem ID of
attrset ID is already registered as a static ID.
[ruby-dev:48559] [Bug #10259]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47643 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This is not a complete fix for bug 10206, but seems to reduce
that crash and also looks correct.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h (WARN_UNUSED_RESULT): warn unused result by gcc 3.4
or later.
* symbol.c: declare some functions with WARN_UNUSED_RESULT.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47323 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The dynamic sym passed to rb_sym2id may be a garbage object
(as accounted for by dsymbol_check). This fixes an occasional
segfault in "make test-all" for me.
No need to backport, this is from the new symbol GC feature.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* string.c (rb_setup_fake_str): setup fake string from C pointer,
length, and encoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47198 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Yusuke Endoh
卜部昌平
Nobuyoshi Nakada
tenderlove
kazu
nobu
normal
naruse
ko1
akr