Changes in uspace/Makefile.common [78a9e5ef:042fbe0] in mainline

File:

• uspace/Makefile.common (modified) (11 diffs)

uspace/Makefile.common

@@ -40 +40 @@
 #   BINARY         (/) binary output name (like appname)
 #   LIBRARY        (/) library output name (like libname)
+#
 #   EXTRA_OUTPUT       additional output targets
 #   EXTRA_CLEAN        additional cleanup targets
+#
+# Optionally, for a binary:
+#   STATIC_NEEDED      set to 'y' for init binaries, will build statically
+#                      linked version
+#   STATIC_ONLY        set to 'y' if binary cannot be linked dynamically
+#                      (e.g. uses thread-local variables)
+#
+# Optionally, for a libary:
+#   SLIBRARY           Name with full version, e.g. libfoo.so.0.0 
+#   LSONAME            Soname / name with short version, e.g. libfoo.so.0
 #
 # (x) required variables
@@ -73 +84 @@
 endif
 
+ifeq ($(CONFIG_BUILD_SHARED_LIBS), y)
+        ifneq ($(SLIBRARY),)
+                LARCHIVE = $(LIBRARY).la
+                LOUTPUT = $(SLIBRARY)
+                EXTRA_OUTPUT += $(LOUTPUT).disasm $(LIBRARY).so $(LSONAME)
+                EXTRA_CLEAN += $(LOUTPUT).map $(LOUTPUT).ldisasm \
+                    $(LIBC_PREFIX)/shared/arch/$(UARCH)/_lib.ld \
+                    $(LIBRARY).so $(LSONAME)
+        endif
+endif
+
 DEPEND = Makefile.depend
 DEPEND_PREV = $(DEPEND).prev
@@ -90 +112 @@
 LIBNET_PREFIX = $(LIB_PREFIX)/net
 
+ifeq ($(STATIC_NEEDED),y)
+        STATIC_BUILD = y
+else
+        ifeq ($(STATIC_ONLY),y)
+                STATIC_BUILD = y
+        else
+                ifeq ($(CONFIG_USE_SHARED_LIBS), y)
+                        STATIC_BUILD = n
+                else
+                        STATIC_BUILD = y
+                endif
+        endif
+endif
+
+ifeq ($(STATIC_BUILD), y)
 BASE_LIBS = $(LIBC_PREFIX)/libc.a $(LIBSOFTINT_PREFIX)/libsoftint.a
-
 LINKER_SCRIPT ?= $(LIBC_PREFIX)/arch/$(UARCH)/_link.ld
+else
+BASE_LIBS = $(LIBC_PREFIX)/libc.so0 $(LIBSOFTINT_PREFIX)/libsofti.so0
+LFLAGS = -Bdynamic
+LINKER_SCRIPT ?= $(LIBC_PREFIX)/arch/$(UARCH)/_link-dlexe.ld
+endif
 
 ifeq ($(CONFIG_OPTIMIZE_FOR_SIZE),y)
@@ -102 +143 @@
 .PHONY: all clean
 
-all: $(VERSION_DEF) $(COMMON_MAKEFILE) $(CONFIG_MAKEFILE) $(CONFIG_HEADER) $(LIBS) $(OUTPUT) $(EXTRA_OUTPUT)
+all: $(VERSION_DEF) $(COMMON_MAKEFILE) $(CONFIG_MAKEFILE) $(CONFIG_HEADER) $(LIBS) $(OUTPUT) $(LOUTPUT) $(EXTRA_OUTPUT)
         -[ -f $(DEPEND) ] && cp -a $(DEPEND) $(DEPEND_PREV)
 
 clean:
-        rm -f $(DEPEND) $(DEPEND_PREV) $(JOB) $(OUTPUT) $(EXTRA_OUTPUT) $(EXTRA_CLEAN)
+        rm -f $(DEPEND) $(DEPEND_PREV) $(JOB) $(OUTPUT) $(LARCHIVE) $(LOUTPUT) $(EXTRA_OUTPUT) $(EXTRA_CLEAN)
         find . -name '*.o' -follow -exec rm \{\} \;
+        find . -name '*.lo' -follow -exec rm \{\} \;
 
 GCC_CFLAGS = -I$(LIBC_PREFIX)/include -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
@@ -130 +172 @@
         -pipe -g -arch $(CLANG_ARCH) -D__$(ENDIANESS)__
 
+LIB_CFLAGS = $(CFLAGS) -fPIC -D__IN_SHARED_LIBC__
+LIB_LFLAGS = $(LFLAGS) -shared -soname $(LSONAME) --whole-archive
+
 ifeq ($(CONFIG_DEBUG),y)
         GCC_CFLAGS += -Werror
@@ -135 +180 @@
 endif
 
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        GCC_CFLAGS += -g
+        ICC_CFLAGS += -g
+        SUNCC_CFLAGS += -g
+        CLANG_CFLAGS += -g
+endif
+
 ## Setup platform configuration
 #
@@ -168 +220 @@
 
 OBJECTS := $(addsuffix .o,$(basename $(SOURCES)))
+LOBJECTS := $(addsuffix .lo,$(basename $(SOURCES)))
 
 ifneq ($(BINARY),)
@@ -178 +231 @@
 
 $(BINARY): $(LINKER_SCRIPT) $(OBJECTS) $(LIBS) $(BASE_LIBS)
-        $(LD) -N $(LFLAGS) -T $(LINKER_SCRIPT) -M -Map $(BINARY).map -o $(BINARY) $(OBJECTS) $(LIBS) $(BASE_LIBS)
+        $(LD) -n $(LFLAGS) -T $(LINKER_SCRIPT) -M -Map $(BINARY).map -o $(BINARY) $(OBJECTS) $(LIBS) $(BASE_LIBS)
 ifeq ($(CONFIG_STRIP_BINARIES),y)
         $(STRIP) $(BINARY)
 endif
+endif
+
+ifneq ($(SLIBRARY),)
+%.disasm: $(LOUTPUT)
+ifeq ($(CONFIG_LINE_DEBUG),y)
+        $(OBJDUMP) -d -S $< > $@
+else
+        $(OBJDUMP) -d $< > $@
+endif
+
+$(LOUTPUT): $(LARCHIVE) $(LIBC_PREFIX)/arch/$(UARCH)/_link-shlib.ld
+        $(LD) -T $(LIBC_PREFIX)/arch/$(UARCH)/_link-shlib.ld $(LIB_LFLAGS) $(LARCHIVE) -o $@ -Map $(LOUTPUT).map
+
+$(LIBRARY).so:
+        ln -s $(SLIBRARY) $@
+
+$(LSONAME):
+        ln -s $(SLIBRARY) $@
 endif
 
@@ -189 +260 @@
 endif
 
+ifneq ($(SLIBRARY),)
+%.la: $(LOBJECTS)
+        $(AR) rc $@ $(LOBJECTS)
+endif
+
 %.o: %.S $(DEPEND)
         $(CC) $(DEFS) $(CFLAGS) -D__ASM__ -c $< -o $@
@@ -203 +279 @@
 %.o: %.c $(DEPEND)
         $(CC) $(DEFS) $(CFLAGS) -c $< -o $@
+ifeq ($(PRECHECK),y)
+        $(JOBFILE) $(JOB) $< $@ cc core $(DEFS) $(CFLAGS)
+endif
+
+%.lo: %.S $(DEPEND)
+        $(CC) $(DEFS) $(LIB_CFLAGS) -D__ASM__ -c $< -o $@
+ifeq ($(PRECHECK),y)
+        $(JOBFILE) $(JOB) $< $@ as asm/preproc $(DEFS) $(CFLAGS) -D__ASM__
+endif
+
+%.lo: %.s $(DEPEND)
+        $(AS) $(AFLAGS) -o $@ $<
+ifeq ($(PRECHECK),y)
+        $(JOBFILE) $(JOB) $< $@ as asm
+endif
+
+%.lo: %.c $(DEPEND)
+        $(CC) $(DEFS) $(LIB_CFLAGS) -c $< -o $@
 ifeq ($(PRECHECK),y)
         $(JOBFILE) $(JOB) $< $@ cc core $(DEFS) $(CFLAGS)
@@ -210 +304 @@
         makedepend -f - -- $(DEPEND_DEFS) $(CFLAGS) -- $(SOURCES) > $@ 2> /dev/null
         -[ -f $(DEPEND_PREV) ] && diff -q $(DEPEND_PREV) $@ && mv -f $(DEPEND_PREV) $@
+
+##
+# This explicit dependecy of the output binary on the object files seems to be
+# necessary to prevent parallel build failures (GNU make bug #26893 ???).
+$(OUTPUT): $(OBJECTS)
+
+$(LARCHIVE): $(LOBJECTS)