--- a/make/hotspot/lib/CompileJvm.gmk Mon Mar 05 13:18:55 2018 +0000
+++ b/make/hotspot/lib/CompileJvm.gmk Wed Mar 07 13:26:15 2018 -0800
@@ -270,3 +270,62 @@
include lib/JvmMapfile.gmk
TARGETS += $(BUILD_LIBJVM)
+
+################################################################################
+# Hotspot disallows the use of global operators 'new' and 'delete'. This build
+# time check helps enforce this requirement. If you trigger this check and the
+# reference is not obvious from the source, GNU objdump can be used to help find
+# the reference if compiled with GCC:
+#
+# objdump -lrdSC <path/to/file.o>
+#
+# -C demangle
+# -d disassemble
+# -r print relocation entries, interspersed with the disassembly
+# -S print source code, intermixed with disassembly
+# -l include filenames and line numbers
+#
+# Search the output for the operator(s) of interest, to see where they are
+# referenced.
+
+ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), )
+
+ DEMANGLED_REGEXP := [^:]operator (new|delete)
+
+ # Running c++filt to find offending symbols in all files is too expensive,
+ # especially on Solaris, so use mangled names when looking for symbols.
+ # Save the demangling for when something is actually found.
+ ifeq ($(TOOLCHAIN_TYPE), solstudio)
+ MANGLED_SYMS := \
+ __1c2n6FL_pv_ \
+ __1c2N6FL_pv_ \
+ __1c2k6Fpv_v_ \
+ __1c2K6Fpv_v_ \
+ #
+ UNDEF_PATTERN := UNDEF
+ else
+ MANGLED_SYMS := \
+ _ZdaPv \
+ _ZdlPv \
+ _Znam \
+ _Znwm \
+ #
+ UNDEF_PATTERN := ' U '
+ endif
+
+ define SetupOperatorNewDeleteCheck
+ $1.op_check: $1
+ if [ -n "`$(NM) $$< | $(GREP) $(addprefix -e , $(MANGLED_SYMS)) \
+ | $(GREP) $(UNDEF_PATTERN)`" ]; then \
+ $(ECHO) "$$<: Error: Use of global operators new and delete is not allowed in Hotspot:"; \
+ $(NM) $$< | $(CXXFILT) | $(EGREP) '$(DEMANGLED_REGEXP)' | $(GREP) $(UNDEF_PATTERN); \
+ $(ECHO) "See: $(TOPDIR)/make/hotspot/lib/CompileJvm.gmk"; \
+ exit 1; \
+ fi
+ $(TOUCH) $$@
+
+ TARGETS += $1.op_check
+ endef
+
+ $(foreach o, $(BUILD_LIBJVM_ALL_OBJS), $(eval $(call SetupOperatorNewDeleteCheck,$o)))
+endif