rework the common template to place objects into bin

tools/export/gcc_arm_common.tmpl

@@ -1,12 +1,31 @@
 # This file was automagically generated by mbed.org. For more information, 
 # see http://mbed.org/handbook/Exporting-to-GCC-ARM-Embedded
 
+ifeq (,$(filter bin,$(notdir $(CURDIR))))
+.SUFFIXES:
+OBJDIR := bin
+MAKETARGET = $(MAKE) --no-print-directory -C $@ -f $(CURDIR)/Makefile \
+		SRCDIR=$(CURDIR) $(MAKECMDGOALS)
+.PHONY: $(OBJDIR) clean
+$(OBJDIR):
+	+@[ -d $@ ] || mkdir -p $@
+	+@$(MAKETARGET)
+Makefile : ;
+% :: $(OBJDIR) ; :
+clean :
+	rm -rf $(OBJDIR)
+{% block target_clean -%}
+{% endblock %}
+else
+
+VPATH = $(SRCDIR)
+
 GCC_BIN = 
 PROJECT = {{name}}
 OBJECTS = {% for f in to_be_compiled %}{{f}} {% endfor %}
 SYS_OBJECTS = {% for f in object_files %}{{f}} {% endfor %}
-INCLUDE_PATHS = {% for p in include_paths %}-I{{p}} {% endfor %}
-LIBRARY_PATHS = {% for p in library_paths %}-L{{p}} {% endfor %}
+INCLUDE_PATHS = {% for p in include_paths %}-I../{{p}} {% endfor %}
+LIBRARY_PATHS = {% for p in library_paths %}-L../{{p}} {% endfor %}
 LIBRARIES = {% for lib in libraries %}-l{{lib}} {% endfor %}
 LINKER_SCRIPT = {{linker_script}}
 {%- block additional_variables -%}{% endblock %}
@@ -49,34 +68,35 @@ else
   CC_FLAGS += -DNDEBUG -Os
 endif
 
-.PHONY: all clean lst size
+.PHONY: all lst size
 
 {% block target_all -%}
 all: $(PROJECT).bin $(PROJECT).hex size
 {% endblock %}
 
-{% block target_clean -%}
-clean:
-	rm -f $(PROJECT).bin $(PROJECT).elf $(PROJECT).hex $(PROJECT).map $(PROJECT).lst $(OBJECTS) $(DEPS)
-{% endblock %}
 
 .asm.o:
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
 	$(CC) $(CPU) -c $(ASM_FLAGS) -o $@ $<
 .s.o:
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
 	$(CC) $(CPU) -c $(ASM_FLAGS) -o $@ $<
 .S.o:
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
 	$(CC) $(CPU) -c $(ASM_FLAGS) -o $@ $<
 
 .c.o:
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
 	$(CC)  $(CC_FLAGS) $(CC_SYMBOLS) $(INCLUDE_PATHS) -o $@ $<
 
 .cpp.o:
+	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
 	$(CPP) $(CPPC_FLAGS) $(CC_SYMBOLS) $(INCLUDE_PATHS) -o $@ $<
 
 
 {% block target_project_elf %}
-$(PROJECT).elf: $(OBJECTS) $(SYS_OBJECTS)
-	$(LD) $(LD_FLAGS) -T$(LINKER_SCRIPT) $(LIBRARY_PATHS) -o $@ $^ -Wl,--start-group $(LIBRARIES) $(LD_SYS_LIBS) -Wl,--end-group
+$(PROJECT).elf: $(OBJECTS) $(SYS_OBJECTS) $(LINKER_SCRIPT)
+	$(LD) $(LD_FLAGS) -T$(filter %.ld, $^) $(LIBRARY_PATHS) -o $@ $(filter %.o, $^) -Wl,--start-group $(LIBRARIES) $(LD_SYS_LIBS) -Wl,--end-group
 {% endblock %}
 
 $(PROJECT).bin: $(PROJECT).elf
@@ -97,4 +117,5 @@ DEPS = $(OBJECTS:.o=.d) $(SYS_OBJECTS:.o=.d)
 -include $(DEPS)
 
 {% block additional_targets %}{% endblock %}
+endif
 

tools/export/gccarm.py

@@ -16,6 +16,7 @@ limitations under the License.
 """
 from exporters import Exporter
 from os.path import splitext, basename
+from os import curdir
 
 
 class GccArm(Exporter):
@@ -128,6 +129,7 @@ class GccArm(Exporter):
     def generate(self):
         # "make" wants Unix paths
         self.resources.win_to_unix()
+        self.resources.relative_to(curdir)
 
         to_be_compiled = []
         for r_type in ['s_sources', 'c_sources', 'cpp_sources']: