X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=TP_13%2Fexo1%2FMakefile;h=0e2661f1a1bf58e01246ab349ba383299ede1ad8;hb=25dc671f8b36ed62a1d2b689347902a122493782;hp=146115f0af178fc9623f83ebfacc19a8f3fa5930;hpb=a80f64d2e55ee92329a3a8a74ec91ca0c8784964;p=TD_C.git

diff --git a/TP_13/exo1/Makefile b/TP_13/exo1/Makefile
index 146115f..0e2661f 100644
--- a/TP_13/exo1/Makefile
+++ b/TP_13/exo1/Makefile
@@ -1,21 +1,28 @@
 # Sample Makefile to build simple project.
 #
 # This Makefile expect all source files (.c) to be at the same level, in the
-# current working directory.
+# $(SRC_PATH) directory.
+#
+# This Makefile expect all embedded library source files (.c) to be at the same level, in the
+# $(LIBRARY_PATH) directory.
 #
 # It will automatically generate dependencies, compile all files, and produce a
-# binary using the provided name.
+# binary using the provided name linked against the library if necessary.
 #
 # Set BINARY_NAME to the name of the binary file to build.
-# Set BUILD_TYPE to either debug or release
+# Set LIBRARY_NAME to the name of the library file to build.
+# The default path for the library code and object is lib.
+# By default the linker will look for $(BINARY_NAME) library name.
+# Set BUILD_TYPE to either debug or release.
 #
 # Automatic dependencies code from:
 # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
 BINARY_NAME=exo1
-BINARY_PATH:=src
+SRC_PATH:=src
 LIBRARY_NAME=libexo1
 LIBRARY_PATH:=lib
-BUILD_TYPE=debug
+#BUILD_TYPE=debug
+BUILD_TYPE=release
 
 # ====================================
 # DO NOT CHANGE STUFF BEYOND THIS LINE
@@ -35,16 +42,31 @@ BUILDDIR := .build/debug
 DEBUG_FLAG = -g
 STRIP_FLAG =
 OPTI_FLAG = -O0
+LTO_SUPPORT = no
+GOLD_SUPPORT = no
 else
 BUILDDIR := .build/release
 DEBUG_FLAG =
 STRIP_FLAG = -s
 OPTI_FLAG = -O3
+LTO_SUPPORT = yes
+GOLD_SUPPORT = yes
+endif
+
+ifeq ($(LTO_SUPPORT),yes)
+CFLAGS_LTO = -flto -ffat-lto-objects
+LDFLAGS_LTO = -fuse-linker-plugin -flto
+endif
+
+ifeq ($(GOLD_SUPPORT),yes)
+LDFLAGS_GOLD = -fuse-ld=gold
 endif
 
-CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
+# Putting header files in the source directory is not the purpose of this INCLUDES variable
+INCLUDES := $(INCLUDES) -I$(LIBRARY_PATH)
+CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
 LIBCFLAGS := -fPIC $(CFLAGS)
-LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
+LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG)
 LIBLDFLAGS := -shared $(LDFLAGS)
 STATICLIBLDFLAGS := -static $(LDFLAGS)
 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
@@ -52,7 +74,7 @@ LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
 OBJDIR := $(BUILDDIR)/objs
 $(shell mkdir -p $(OBJDIR))
 
-SRCS=$(wildcard $(BINARY_PATH)/*.c)
+SRCS=$(wildcard $(SRC_PATH)/*.c)
 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
@@ -62,15 +84,6 @@ $(shell mkdir -p $(DEPDIR))
 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
 
-print: 
-	@echo $(basename $(notdir $(SRCS)))
-	@echo $(notdir $(SRCS))
-	@echo $(DEPDIR)/%d
-	@echo $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
-	@echo $(OBJS) $(LIBOBJS)
-	@echo $(SRCS) $(LIBSRCS)
-	@echo $(POSTCOMPILE)
-
 $(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
 	@echo "[AR StO] $@"
 	@$(AR) rcs $@ $^
@@ -91,22 +104,18 @@ $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 	@echo "[LD ] $@"
 	@$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
 
-#$(BINARY_NAME).staticlocal: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
-#	@echo "[LD ] $@"
-#	@$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
-
 $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 	@echo "[LD ] $@"
 	@$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 
-$(OBJS): $(SRCS) $(DEPDIR)/%.d
+$(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
 	@echo "[C  ] $(notdir $*)"
 	@$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
 	@$(POSTCOMPILE)
 
 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
 
-$(LIBOBJS): $(LIBSRCS) $(DEPDIR)/%.d
+$(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 	@echo "[C  ] $(notdir $*)"
 	@$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 	@$(POSTCOMPILE)