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Mark all the built-in classes during GC sweep

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Reported by https://hackerone.com/haquaman
This commit is contained in:
Bouke van der Bijl
2016-12-06 10:30:08 -05:00
parent 5930a6ebc7
commit f7a891fa89
2 changed files with 34 additions and 0 deletions
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mrbgems/mruby-bin-mruby/bintest/mruby.rb
+14
View File
@@ -44,3 +44,17 @@ EOS
script.flush
assert_equal "\"test\"\n\"fin\"\n", `#{cmd('mruby')} #{script.path}`
end
assert('garbage collecting built-in classes') do
script = Tempfile.new('test.rb')
script.write <<RUBY
NilClass = nil
GC.start
Array.dup
print nil.class.name
RUBY
script.flush
assert_equal "NilClass", `#{cmd('mruby')} #{script.path}`
assert_equal 0, $?.exitstatus
end
src/gc.c
+20
View File
@@ -832,6 +832,26 @@ root_scan_phase(mrb_state *mrb, mrb_gc *gc)
}
/* mark class hierarchy */
mrb_gc_mark(mrb, (struct RBasic*)mrb->object_class);
/* mark built-in classes */
mrb_gc_mark(mrb, (struct RBasic*)mrb->class_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->module_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->proc_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->string_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->array_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->hash_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->float_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->fixnum_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->true_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->false_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->nil_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->symbol_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->kernel_module);
mrb_gc_mark(mrb, (struct RBasic*)mrb->eException_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->eStandardError_class);
/* mark top_self */
mrb_gc_mark(mrb, (struct RBasic*)mrb->top_self);
/* mark exception */