From 9a5b75e2baedd921c7f541d742ba1e4900a73501 Mon Sep 17 00:00:00 2001
From: Alexander Kyte <alexmkyte@gmail.com>
Date: Mon, 10 Jul 2017 18:12:32 -0400
Subject: [PATCH] [runtime] Add mkbundle support for dedup

---
 mcs/build/tests.make           | 17 +++++++++++++++--
 mcs/tools/mkbundle/mkbundle.cs |  2 ++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/mcs/build/tests.make b/mcs/build/tests.make
index 4aed77f34c6..d571d307d46 100644
--- a/mcs/build/tests.make
+++ b/mcs/build/tests.make
@@ -147,6 +147,14 @@ endif
 
 ifdef PLATFORM_AOT_SUFFIX
 
+DEDUP_DUMMY_CS=$(topdir)/class/lib/$(PROFILE)/DummyInflated.cs
+DEDUP_DUMMY=$(topdir)/class/lib/$(PROFILE)/DummyInflated.dll
+
+$(DEDUP_DUMMY):
+	echo " // Empty Assembly \n\n" > $(DEDUP_DUMMY_CS)
+	$(CSCOMPILE) -t:library -out:$(DEDUP_DUMMY) $(DEDUP_DUMMY_CS) 
+	rm $(DEDUP_DUMMY_CS)
+
 MKBUNDLE_TEST_BIN = $(TEST_HARNESS).static
 MKBUNDLE_EXE = $(topdir)/class/lib/$(PROFILE)/mkbundle.exe
 # Pattern based on the one in AOT_PROFILE_ASSEMBLIES 
@@ -163,8 +171,13 @@ mkbundle-all-tests:
 	$(Q_AOT) $(MAKE) -C $(topdir)/tools/mkbundle
 	$(Q_AOT) $(MAKE) $(MKBUNDLE_TEST_BIN) # recursive make re-computes variables for TEST_ASSEMBLIES
 
-$(MKBUNDLE_TEST_BIN): $(TEST_ASSEMBLIES) $(TEST_HARNESS) $(MKBUNDLE_EXE)
-	$(Q_AOT) MONO_PATH="$(topdir)/class/lib/$(BUILD_TOOLS_PROFILE)" PKG_CONFIG_PATH="$(topdir)/../data" $(RUNTIME) $(RUNTIME_FLAGS) $(MKBUNDLE_EXE) -L $(topdir)/class/lib/$(PROFILE) -v --deps $(TEST_HARNESS) $(TEST_ASSEMBLIES) -o $(MKBUNDLE_TEST_BIN) --aot-mode $(AOT_MODE) --aot-runtime $(RUNTIME) --aot-args $(AOT_BUILD_ATTRS) --in-tree $(topdir)/.. --cil-strip $(topdir)/class/lib/$(BUILD_TOOLS_PROFILE)/mono-cil-strip.exe --managed-linker $(topdir)/class/lib/$(BUILD_TOOLS_PROFILE)/monolinker.exe --config $(topdir)/../data/config --i18n all
+ifdef MKBUNDLE_DEDUP
+MKBUNDLE_DEDUP_COND := $(DEDUP_DUMMY)
+DEDUP_ARGS=--aot-dedup $(DEDUP_DUMMY)
+endif
+
+$(MKBUNDLE_TEST_BIN): $(TEST_ASSEMBLIES) $(TEST_HARNESS) $(MKBUNDLE_EXE) $(MKBUNDLE_DEDUP_COND)
+	$(Q_AOT) MONO_PATH="$(topdir)/class/lib/$(BUILD_TOOLS_PROFILE)" PKG_CONFIG_PATH="$(topdir)/../data" $(RUNTIME) $(RUNTIME_FLAGS) $(MKBUNDLE_EXE) -L $(topdir)/class/lib/$(PROFILE) -v --deps $(TEST_HARNESS) $(TEST_ASSEMBLIES) -o $(MKBUNDLE_TEST_BIN) --aot-mode $(AOT_MODE) --aot-runtime $(RUNTIME) --aot-args $(AOT_BUILD_ATTRS) --in-tree $(topdir)/.. --managed-linker $(topdir)/class/lib/$(BUILD_TOOLS_PROFILE)/monolinker.exe --config $(topdir)/../data/config --i18n all $(DEDUP_ARGS) --keeptemp
 
 endif # PLATFORM_AOT_SUFFIX
 
diff --git a/mcs/tools/mkbundle/mkbundle.cs b/mcs/tools/mkbundle/mkbundle.cs
index 47ed41c50fa..9802735a5b8 100755
--- a/mcs/tools/mkbundle/mkbundle.cs
+++ b/mcs/tools/mkbundle/mkbundle.cs
@@ -1600,6 +1600,8 @@ void          mono_register_config_for_assembly (const char* assembly_name, cons
 			var outName = Path.Combine (temp_dir_name, Path.GetFileName (inName));
 			File.Copy (inName, outName);
 			files [i] = outName;
+			if (in_name == aot_dedup_assembly)
+				aot_dedup_assembly = out_name;
 		}
 	}
 
-- 
2.25.1