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unified: Fix build broblem caused by concurrent make processes in single dir

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Make sure that kernel/unified, that is included in libs-y does not
built recursively through building kernel/ directory.
Make sure that any lib.a library is not included into libzephyr.a
and thus object modules from those lib.a files are linked only if a
function from that object module is referenced from the application.

Jira: ZEP-1025

Change-Id: Id3a3e96ca0b8abc9aedde0ffb9baa0164e380464
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
This commit is contained in:
Dmitriy Korovkin 2016-10-03 14:58:18 -04:00 • committed by Anas Nashif
commit 19f2884738
2 changed files with 9 additions and 9 deletions
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14
Makefile
View file

@ -534,8 +534,6 @@ scripts: scripts_basic include/config/auto.conf include/config/tristate.conf
# arch/ must be last here so that .gnu.linkonce magic for interrupts/exceptions
# works as expected
core-y := lib/ kernel/ misc/ net/ boards/ ext/ usb/ fs/ tests/ arch/
drivers-y := drivers/
ifneq ($(strip $(MAKEFILE_APP_DIR)),)
MAKEFILE_APP := $(realpath $(MAKEFILE_APP_DIR)/Makefile.app)
@ -580,7 +578,11 @@ endif # $(dot-config)
# Unified kernel objects are built as a static library
ifeq ($(CONFIG_KERNEL_V2),y)
libs-y := kernel/unified/
core-y := lib/ misc/ net/ boards/ ext/ usb/ fs/ tests/ arch/
else
core-y := lib/ kernel/ misc/ net/ boards/ ext/ usb/ fs/ tests/ arch/
endif
drivers-y := drivers/
ARCH = $(subst $(DQUOTE),,$(CONFIG_ARCH))
export ARCH
@ -796,10 +798,10 @@ OUTPUT_FORMAT ?= elf32-i386
OUTPUT_ARCH ?= i386
quiet_cmd_ar_target = AR $@
# Assume that if the directory listed in libs-y contains built-in.o,
# it has been linked into the upper level built-in.o
# Do not put lib.a into libzephyr.a. lib.a files are to be linked separately to
# the final image
cmd_ar_target = rm -f $@; $(AR) rcT$(KBUILD_ARFLAGS) $@ \
$(filter-out $(libs-y), $(KBUILD_ZEPHYR_MAIN))
$(filter-out %/lib.a, $(KBUILD_ZEPHYR_MAIN))
libzephyr.a: $(zephyr-deps)
$(call cmd,ar_target)
@ -817,7 +819,7 @@ quiet_cmd_create-lnk = LINK $@
echo "$(app-y)"; \
echo "libzephyr.a"; \
echo "$(LINKFLAGPREFIX)--no-whole-archive"; \
echo "$(filter %/lib.a, $(libs-y))"; \
echo "$(filter %/lib.a, $(KBUILD_ZEPHYR_MAIN))"; \
echo "$(objtree)/arch/$(ARCH)/core/offsets/offsets.o"; \
echo "$(LINKFLAGPREFIX)--end-group"; \
echo "$(LIB_INCLUDE_DIR) $(LINK_LIBS)"; \

4
kernel/Makefile
View file

@ -1,6 +1,4 @@
ifeq ($(CONFIG_KERNEL_V2),y)
obj-y = unified/
else
ifneq ($(CONFIG_KERNEL_V2),y)
obj-y = nanokernel/
obj-$(CONFIG_MICROKERNEL) += microkernel/
endif