ruby.git/ext/-test-/bug-14834/bug-14384.c, branch v3_3_11 The Ruby Programming Language ext/-test-/bug-14834/bug-14384.c: fallback for MAYBE_UNUSED 2019-08-01T12:09:59+00:00 Yusuke Endoh mame@ruby-lang.org 2019-08-01T12:09:59+00:00 b8e351a1b9a16ce27f53d15051a1d1f83911b8cb __unused__ is unavailable on Sun C. https://rubyci.org/logs/rubyci.s3.amazonaws.com/solaris11s-sunc/ruby-master/log/20190801T112505Z.fail.html.gz 
__unused__ is unavailable on Sun C.
https://rubyci.org/logs/rubyci.s3.amazonaws.com/solaris11s-sunc/ruby-master/log/20190801T112505Z.fail.html.gz
fix VC 2013 compile error 2019-08-01T07:19:49+00:00 卜部昌平 shyouhei@ruby-lang.org 2019-08-01T07:18:45+00:00 fd0e3bd2497d4e796b719c7b7154dc3c945f87b1 It seems the compiler does not support VLAs. See also: https://ci.appveyor.com/project/ruby/ruby/builds/26392589/job/px6nuiuw4e78weg1 
It seems the compiler does not support VLAs.
See also: https://ci.appveyor.com/project/ruby/ruby/builds/26392589/job/px6nuiuw4e78weg1
fix tracepoint + backtrace SEGV 2019-08-01T07:00:59+00:00 卜部昌平 shyouhei@ruby-lang.org 2019-07-31T14:00:15+00:00 5d33f787169bcc3594d2264726695d58c4a06899 PC modification in gc_event_hook_body was careless. There are (so to say) abnormal iseqs stored in the cfp. We have to check sanity before we touch the PC. This has not been fixed because there was no way to (ab)use the setup from pure-Ruby. However by using our official C APIs it is possible to touch such frame(s), resulting in SEGV. Fixes [Bug #14834]. 
PC modification in gc_event_hook_body was careless.  There are (so
to say) abnormal iseqs stored in the cfp.  We have to check sanity
before we touch the PC.

This has not been fixed because there was no way to (ab)use the
setup from pure-Ruby.  However by using our official C APIs it is
possible to touch such frame(s), resulting in SEGV.

Fixes [Bug #14834].