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8024974: Incorrect use of GC_locker::is_active() Summary: SymbolTable and StringTable can make calls to GC_locker::is_active() outside a safepoint. This isn't safe because the GC_locker active state (lock count) is only updated at a safepoint and only remains valid as long as _needs_gc is true. However, outside a safepoint_needs_gc can change to false at any time, which makes it impossible to do a correct call to is_active() in that context. In this case these calls can just be removed since the input argument to basic_add() should never be on the heap and so there's no need to check the GC_locker state. This change also adjusts the assert() in is_active() to makes sure all calls to this function are always done under a safepoint. Reviewed-by: brutisso, dcubed Contributed-by: per.liden@oracle.com
author stefank
date Fri, 20 Sep 2013 10:53:28 +0200
parents 109d1d265924
children fe392af93c23
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# JPRT rule to build this workspace

JPRT_ARCHIVE_BUNDLE=$(ABS_OUTPUTDIR)/$(JPRT_BUILD_FLAVOR)-bundle.zip

ifeq ($(OSNAME),windows)
  ZIPFLAGS=-q
else
  # store symbolic links as the link
  ZIPFLAGS=-q -y
endif

jprt_build_productEmb:
	$(MAKE) JAVASE_EMBEDDED=true MINIMIZE_RAM_USAGE=true jprt_build_product

jprt_build_debugEmb:
	$(MAKE) JAVASE_EMBEDDED=true MINIMIZE_RAM_USAGE=true jprt_build_debug

jprt_build_fastdebugEmb:
	$(MAKE) JAVASE_EMBEDDED=true MINIMIZE_RAM_USAGE=true jprt_build_fastdebug

jprt_build_productOpen:
	$(MAKE) OPENJDK=true jprt_build_product

jprt_build_debugOpen:
	$(MAKE) OPENJDK=true jprt_build_debug

jprt_build_fastdebugOpen:
	$(MAKE) OPENJDK=true jprt_build_fastdebug

jprt_build_product: all_product copy_product_jdk export_product_jdk
	( $(CD) $(JDK_IMAGE_DIR) && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

jprt_build_fastdebug: all_fastdebug copy_fastdebug_jdk export_fastdebug_jdk
	( $(CD) $(JDK_IMAGE_DIR)/fastdebug && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

jprt_build_debug: all_debug copy_debug_jdk export_debug_jdk
	( $(CD) $(JDK_IMAGE_DIR)/debug && \
	  $(ZIPEXE) $(ZIPFLAGS) -r $(JPRT_ARCHIVE_BUNDLE) . )

.PHONY: jprt_build_product jprt_build_fastdebug jprt_build_debug