Makefile rule to create DEPDIR Topic is solved

[faisal]

This seems to be a missing feature in rules.mk . All the more important with multi-demos.

Code: Select all

$(OBJS): | $(BUILDDIR) $(OBJDIR) $(LSTDIR) $(DEPDIR)

$(BUILDDIR):
ifneq ($(USE_VERBOSE_COMPILE),yes)
   @echo Compiler Options
   @echo $(CC) -c $(CFLAGS) -I. $(IINCDIR) main.c -o main.o
   @echo
endif
   @mkdir -p $(BUILDDIR)

$(OBJDIR):
   @mkdir -p $(OBJDIR)

$(LSTDIR):
   @mkdir -p $(LSTDIR)
   
[b]$(DEPDIR):
   @mkdir -p $(DEPDIR)[/b]

[Giovanni]

Hi,

Isn't this done at the end of the rules.mk file?

Code: Select all

#
# Include the dependency files, should be the last of the makefile
#
-include $(shell mkdir -p $(DEPDIR) 2>/dev/null)

Is there a case where this does not work?

Giovanni

[faisal]

I have a project which needs to support multiple boards. So I tried following the pattern of the 'multi' projects in testhal. I wanted to create a single .dep directory for dependencies, and then sub directories in there for the various boards. So, in the makefile for each board, I have the following variables defined:

CONFDIR := ./cfg/$(BOARD_NAME)
BUILDDIR := ./build/$(BOARD_NAME)
DEPDIR := ./.dep/$(BOARD_NAME)

I got the following error if I didn't modify rules.mk as above.

Compiling crt0_v7m.S
../../../../ChibiOS_18.2.0/os/common/startup/ARMCMx/compilers/GCC/crt0_v7m.S:1:0: fatal error: opening dependency file ./.dep/stm32l496-snapdragon/crt0_v7m.o.d: No such file or directory

I got not such error with CONFDIR, or BUILDDIR.

[Giovanni]

Hi,

I applied the change among other things, please check it is OK for you.

Giovanni

[faisal]

I don't see the change in 18.2.x stable. The changes you made in trunk look like what I need. Thanks for that! Any plans to update 18.2 stable?

[faisal]

Saw it backported to 18.2 stable. Thanks Giovanni.