Here, recv can be INT2FIX(-1), which is 0xFFFF_FFFFul.
INT2FIX(1) is 3ul. So `recv - 1 + INT2FIX(1)` is:
recv 0xFFFF_FFFFul
recv-1 0xFFFF_FFFEul (note: unsigned)
recv-1+INT2FIX(1) 0x0000_0001ul Here is the overflow.
Given recv is a Fixnum, it can never be 0xFFFF_FFFD. 0xFFFF_FFFF is
the only value that can overflow this way, so special-casing this
value should just suffice.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65828 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Because mon_initialized may be used to re-initialize copied objects intentionally.
mon_initialize_spec.rb fails:
1)
MonitorMixin#mon_initialize can be called in initialize_copy to get a new Mutex and used with synchronize ERROR
ThreadError: already initialized
/home/shugo/src/ruby/lib/monitor.rb:255:in `mon_initialize'
/home/shugo/src/ruby/spec/ruby/library/monitor/mon_initialize_spec.rb:19:in `initialize_copy'
/home/shugo/src/ruby/spec/ruby/library/monitor/mon_initialize_spec.rb:28:in `initialize_dup'
/home/shugo/src/ruby/spec/ruby/library/monitor/mon_initialize_spec.rb:28:in `dup'
/home/shugo/src/ruby/spec/ruby/library/monitor/mon_initialize_spec.rb:28:in `block (2 levels) in <top (required)>'
/home/shugo/src/ruby/spec/ruby/library/monitor/mon_initialize_spec.rb:4:in `<top (required)>'
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65827 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.ac: Check if CFLAGS actually includes -fcf-protection
instead of checking if the flag is valid by RUBY_TRY_CFLAGS.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
while child handler is disabled.
trying to fix [Bug #15320]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
by avoiding using __builtin_longjmp, like r64983.
[Bug #15307]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65815 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
it didn't work.
http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468677
and skips broken tests for now. But this issue should be fixed soon.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* include/ruby/ruby.h (rb_scan_args_verify): void the never used
result.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65812 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
In some places, both JIT and MJIT are being used, but it could be
confusing for new comers. We're not explaining MJIT on NEWS file or release
notes as well. So we consider MJIT as an internal term of implementation
like YARV.
configure.ac: ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65810 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
to prevent from proceeding one for MJIT while it's not safe yet.
By that situation, MJIT worker could be waiting for compiler process forever
http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468033
[Bug #15320]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65807 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Adjusted to warnflags variable. This variable will have flags for
warnings, but not a warning itself.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65806 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The behaviour of String#setbyte has been depending on the width
of int, which is not portable. Must check explicitly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65804 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The behaviour of IO#ungetbyte has been depending on the width of
Fixnums. Fixnums should be invisible nowadays. It must be a
bug. Fix [Bug #14359]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65802 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
redirection to a tty, file or pipe is not a permanent status.
`rb_cv_` prefix means that it should be saved/restored across
re-configurations.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* .travis.yml: use dedicated flags, cflags and others, not to
override optflags, warnflags and debugflags.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This args[1]-- overflows when it is zero. Should do that only
when we can say it is nonzero.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
When CFLAGS is passed on travis, warnflags seems not working.
Let's add them directly to prevent clang form messing up the logs.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65796 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Without this option clang outputs tons of warnings, which
are annoying. See https://travis-ci.org/ruby/ruby/jobs/456553420#L1817
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65795 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
by launching MJIT worker thread in child Ruby process.
See the comment before `mjit_child_after_fork` for details.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ec->interrupt_mask will remain rb_atomic_t and is 32-bit on some
64-bit systems while "unsigned long" is 64-bits. So avoid
mismatching lengths and stick to rb_atomic_t.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65781 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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