echo "LLVM Source Root: " $(LLVM_SRC_ROOT);
echo "LLVM Object Root: " $(LLVM_OBJ_ROOT);
+#
+# Mark all of these targets as phony. This will hopefully speed up builds
+# slightly since GNU Make will not try to find implicit rules for targets
+# which are marked as Phony.
+#
+.PHONY: all dynamic clean distclean install test bytecode prdirs
+
###########################################################################
# Miscellaneous paths and commands:
# This section defines various configuration macros, such as where
# Libtool is found in the current directory.
#
ifdef VERBOSE
-LIBTOOL=$(LLVM_SRC_ROOT)/libtool
+LIBTOOL=$(LLVM_SRC_ROOT)/mklib
else
-LIBTOOL=$(LLVM_SRC_ROOT)/libtool --silent
+LIBTOOL=$(LLVM_SRC_ROOT)/mklib --silent
+endif
+
+#
+# If we're not building a shared library, use the disable-shared tag with
+# libtool. This will disable the building of objects for shared libraries and
+# only generate static library objects.
+#
+# For dynamic libraries, we'll take the performance hit for now, since we
+# almost never build them.
+#
+# This should speed up compilation and require no modifications to future
+# versions of libtool.
+#
+ifndef SHARED_LIBRARY
+LIBTOOL := $(LIBTOOL) --tag=disable-shared
endif
#
Compile := $(LIBTOOL) --mode=compile $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $(CompileCommonOpts)
CompileC := $(LIBTOOL) --mode=compile $(CC) -c $(CPPFLAGS) $(CCFLAGS) $(CompileCommonOpts)
-#
-# Add the LLVM specific "-only-static" option so that we only compile .o files
-# once when not building a shared library.
-#
-# For shared libraries, we will end up building twice, but that doesn't happen
-# very often, so we'll let it go.
-#
-ifndef SHARED_LIBRARY
-Compile := $(Compile) -only-static
-CompileC := $(CompileC) -only-static
-endif
-
# Compile a cpp file, don't link...
CompileG := $(Compile) -g -D_DEBUG
CompileO := $(Compile) $(CompileOptimizeOpts) -felide-constructors -fomit-frame-pointer
LinkP := $(Link) -O3 -L$(PROJLIBPROFILESOURCE) -L$(LLVMLIBPROFILESOURCE) $(PROFILE)
# Create one .o file from a bunch of .o files...
+#ifdef SHARED_LIBRARY
Relink = ${LIBTOOL} --mode=link $(CXX)
+#else
+Relink = ${LIBTOOL} --mode=link $(CXX) -only-static
+#endif
# MakeSO - Create a .so file from a .o files...
#MakeSO := $(LIBTOOL) --mode=link $(CXX) $(MakeSharedObjectOption)
Source := $(ExtraSource) $(wildcard *.cpp *.c *.y *.l)
endif
+#
+# Libtool Objects
+#
Objs := $(sort $(patsubst Debug/%.lo, %.lo, $(addsuffix .lo,$(notdir $(basename $(Source))))))
ObjectsO := $(addprefix $(BUILD_OBJ_DIR)/Release/,$(Objs))
ObjectsP := $(addprefix $(BUILD_OBJ_DIR)/Profile/,$(Objs))
ObjectsG := $(addprefix $(BUILD_OBJ_DIR)/Debug/,$(Objs))
+#
+# The real objects underlying the libtool objects
+#
+RObjs := $(sort $(patsubst Debug/%.o, %.o, $(addsuffix .o,$(notdir $(basename $(Source))))))
+RObjectsO := $(addprefix $(BUILD_OBJ_DIR)/Release/,$(RObjs))
+RObjectsP := $(addprefix $(BUILD_OBJ_DIR)/Profile/,$(RObjs))
+RObjectsG := $(addprefix $(BUILD_OBJ_DIR)/Debug/,$(RObjs))
+
#---------------------------------------------------------
# Handle the DIRS and PARALLEL_DIRS options
#---------------------------------------------------------
#
# Rules for building .o libraries.
#
+# JTC:
+# Note that for this special case, we specify the actual object files
+# instead of their libtool counterparts. This is because libtool
+# doesn't want to generate a reloadable object file unless it is given
+# .o files explicitly.
+#
+# Note that we're making an assumption here: If we build a .lo file,
+# it's corresponding .o file will be placed in the same directory.
+#
+# I think that is safe.
+#
$(LIBNAME_OBJO): $(ObjectsO) $(LibSubDirs) $(DESTLIBRELEASE)/.dir
@echo "Linking $@"
- $(VERB) $(Relink) -o $@ $(ObjectsO) $(LibSubDirs)
+ $(VERB) $(Relink) -o $@ $(RObjectsO) $(LibSubDirs)
$(LIBNAME_OBJP): $(ObjectsP) $(LibSubDirs) $(DESTLIBPROFILE)/.dir
@echo "Linking $@"
- $(VERB) $(Relink) -o $@ $(ObjectsP) $(LibSubDirs)
+ $(VERB) $(Relink) -o $@ $(RObjectsP) $(LibSubDirs)
$(LIBNAME_OBJG): $(ObjectsG) $(LibSubDirs) $(DESTLIBDEBUG)/.dir
@echo "Linking $@"
- $(VERB) $(Relink) -o $@ $(ObjectsG) $(LibSubDirs)
+ $(VERB) $(Relink) -o $@ $(RObjectsG) $(LibSubDirs)
endif
.PRECIOUS: $(BUILD_OBJ_DIR)/Depend/.dir
.PRECIOUS: $(BUILD_OBJ_DIR)/Debug/.dir $(BUILD_OBJ_DIR)/Release/.dir
-# Create .o files in the ObjectFiles directory from the .cpp and .c files...
-#$(BUILD_OBJ_DIR)/Release/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
- #@echo "Compiling $<"
- #$(VERB) $(CompileO) $< -o $@
-
-#$(BUILD_OBJ_DIR)/Release/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Release/.dir
- #$(VERB) $(CompileCO) $< -o $@
-
-#$(BUILD_OBJ_DIR)/Profile/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Profile/.dir
- #@echo "Compiling $<"
- #$(VERB) $(CompileP) $< -o $@
-
-#$(BUILD_OBJ_DIR)/Profile/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Profile/.dir
- #@echo "Compiling $<"
- #$(VERB) $(CompileCP) $< -o $@
-
-#$(BUILD_OBJ_DIR)/Debug/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Debug/.dir
- #@echo "Compiling $<"
- #$(VERB) $(CompileG) $< -o $@
-
-#$(BUILD_OBJ_DIR)/Debug/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Debug/.dir
- #$(VERB) $(CompileCG) $< -o $@
-
# Create .lo files in the ObjectFiles directory from the .cpp and .c files...
$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
@echo "Compiling $<"
@echo "Compiling $<"
$(VERB) $(CompileCG) $< -o $@
-# Create .lo files in the ObjectFiles directory from the .cpp and .c files...
-$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
- @echo "Compiling $<"
- $(VERB) $(CompileO) $< -o $@
-
-$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Release/.dir
- $(VERB) $(CompileCO) $< -o $@
-
-$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Profile/.dir
- @echo "Compiling $<"
- $(VERB) $(CompileP) $< -o $@
-
-$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Profile/.dir
- @echo "Compiling $<"
- $(VERB) $(CompileCP) $< -o $@
-
-$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Debug/.dir
- @echo "Compiling $<"
- $(VERB) $(CompileG) $< -o $@
-
-$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Debug/.dir
- $(VERB) $(CompileCG) $< -o $@
-
#
# Rules for building lex/yacc files
#
# FIXME. (f.e. char Buffer[10000]; )
#
%.cpp: %.l
- $(FLEX) -t $< | $(SED) '/^find_rule/d' | \
- $(SED) 's/void yyunput/inline void yyunput/' | \
+ @echo Flex\'ing $<...
+ $(VERB) $(FLEX) -t $< | \
+ $(SED) '/^find_rule/d' | \
+ $(SED) 's/void yyunput/inline void yyunput/' | \
$(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \
- $(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' > $@
+ $(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \
+ > $@.tmp
+ $(VERB) cmp $@ $@.tmp > /dev/null || ${MV} -f $@.tmp $@
+ @# remove the output of flex if it didn't get moved over...
+ @rm -f $@.tmp
# Rule for building the bison parsers...
%.c: %.y # Cancel built-in rules for yacc
%.cpp %.h : %.y
@echo Bison\'ing $<...
$(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y
- $(VERB) ${MV} -f $*.tab.c $*.cpp
- $(VERB) ${MV} -f $*.tab.h $*.h
+ $(VERB) cmp $*.tab.c $*.cpp > /dev/null || ${MV} -f $*.tab.c $*.cpp
+ $(VERB) cmp $*.tab.h $*.h > /dev/null || ${MV} -f $*.tab.h $*.h
+ @# If the files were not updated, don't leave them lying around...
+ @rm -f $*.tab.c $*.tab.h
# To create the directories...
%/.dir:
SourceBaseNames := $(basename $(notdir $(filter-out Debug/%, $(Source))))
SourceDepend := $(SourceBaseNames:%=$(BUILD_OBJ_DIR)/Depend/%.d)
-#
-# Depend target:
-# This allows a user to manually ask for an update in the dependencies
-#
-depend: $(SourceDepend)
-
-
# Create dependencies for the *.cpp files...
#$(SourceDepend): \x
$(BUILD_OBJ_DIR)/Depend/%.d: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Depend/.dir
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