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process.c: guard eargp against GC

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`rb_str_append` may trigger GC, and in that case eargp might be GCed.
Probably for protecting it, `RB_GC_GUARD(execarg_obj)` can be seen in
other places.

Hoping to fix:
http://ci.rvm.jp/results/trunk_gcc5@silicon-docker/569818

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62570 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
k0kubun 2018-02-25 02:12:25 +00:00
parent 591baf8fe3
commit 71da3c50ef
1 changed files with 1 additions and 0 deletions
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process.c
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@ -4111,6 +4111,7 @@ rb_f_system(int argc, VALUE *argv)
rb_str_cat_cstr(pst_message_status(str, status), ": "); rb_str_cat_cstr(pst_message_status(str, status), ": ");
rb_str_append(str, eargp->invoke.sh.shell_script); rb_str_append(str, eargp->invoke.sh.shell_script);
rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, str)); rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, str));
RB_GC_GUARD(execarg_obj);
} }
else { else {
return Qfalse; return Qfalse;