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3 commits

Author SHA1 Message Date
Yusuke Endoh
b8e351a1b9 ext/-test-/bug-14834/bug-14384.c: fallback for MAYBE_UNUSED 
__unused__ is unavailable on Sun C.
https://rubyci.org/logs/rubyci.s3.amazonaws.com/solaris11s-sunc/ruby-master/log/20190801T112505Z.fail.html.gz
 2019-08-01 21:09:59 +09:00
卜部昌平
fd0e3bd249 fix VC 2013 compile error 
It seems the compiler does not support VLAs.
See also: https://ci.appveyor.com/project/ruby/ruby/builds/26392589/job/px6nuiuw4e78weg1
 2019-08-01 16:19:49 +09:00
卜部昌平
5d33f78716 fix tracepoint + backtrace SEGV 
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].
 2019-08-01 16:00:59 +09:00