X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=TP_13%2Fexo1%2FMakefile;h=0e2661f1a1bf58e01246ab349ba383299ede1ad8;hb=25dc671f8b36ed62a1d2b689347902a122493782;hp=830835782ec244e8cf50fd31445bce29eea3f149;hpb=a9c4c876238c3df46b42290f8fd26906a94f8af4;p=TD_C.git

diff --git a/TP_13/exo1/Makefile b/TP_13/exo1/Makefile
index 8308357..0e2661f 100644
--- a/TP_13/exo1/Makefile
+++ b/TP_13/exo1/Makefile
@@ -1,13 +1,19 @@
 # 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
@@ -15,8 +21,8 @@ BINARY_NAME=exo1
 SRC_PATH:=src
 LIBRARY_NAME=libexo1
 LIBRARY_PATH:=lib
-BUILD_TYPE=debug
-#BUILD_TYPE=release
+#BUILD_TYPE=debug
+BUILD_TYPE=release
 
 # ====================================
 # DO NOT CHANGE STUFF BEYOND THIS LINE
@@ -36,17 +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
 
-INCLUDES := $(INCLUDES) -I$(SRC_PATH) -I$(LIBRARY_PATH)
-CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
+# 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)
@@ -84,10 +104,6 @@ $(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 $@