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gemini: image: fix race condition when building copy-kernel.bin 

Make treat copy-kernel.o as intermediate and delete it when it's no
longer needed.  This can fail when the same submake was triggered
multiple times for different devices.

	arm-openwrt-linux-muslgnueabi-as  -k -o copy-kernel.o copy-kernel.S
	export MAKEFLAGS= ;make -w -C copy-kernel CROSS_COMPILE=arm-openwrt-linux-muslgnueabi-
	arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
	make[5]: Entering directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
	arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
	rm copy-kernel.o
	make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
	# "App" partition is the rootfs
	arm-openwrt-linux-muslgnueabi-objcopy: 'copy-kernel.o': No such file
	Makefile:27: recipe for target 'copy-kernel.bin' failed
	make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
	make[5]: *** [copy-kernel.bin] Error 1
	Makefile:244: recipe for target '/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin' failed
	make[4]: *** [/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin] Error 2

With this change, output files are directed to $(KDIR)

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
master
Yousong Zhou 2019-09-10 02:19:05 +00:00
parent 7bed9bf10f
commit 6d819fae53
2 changed files with 15 additions and 8 deletions
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9
target/linux/gemini/image/Makefile
View File

@ -7,8 +7,8 @@
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
define Build/copy-kernel
$(MAKE) -C copy-kernel CROSS_COMPILE=$(TARGET_CROSS)
define Build/copy-kernel.bin
$(call locked,$(MAKE) -C copy-kernel CROSS_COMPILE=$(TARGET_CROSS) O=$(KDIR),gemini-copy-kernel.bin)
endef
# Cook a "WRGG" image, this board is apparently one in the D-Link
@ -93,11 +93,10 @@ endef
define Build/storlink-default-images
mkdir -p $@.tmp
$(call Build/copy-kernel)
# "App" partition is the rootfs
mv $@ $@.tmp/hddapp.tgz
# 256 bytes copy routine
dd if=copy-kernel/copy-kernel.bin of=$@.tmp/zImage
dd if=$(KDIR)/copy-kernel.bin of=$@.tmp/zImage
$(call Image/pad-to,$@.tmp/zImage,512)
# Copy first part of the kernel into zImage
dd if=$(IMAGE_KERNEL) of=$@.tmp/zImage bs=1 seek=512 count=2096640
@ -182,6 +181,8 @@ TARGET_DEVICES += dlink_dns-313
# Default images setup used by the StorLink reference designs
define Device/storlink-reference
COMPILE := copy-kernel-$(1).bin
COMPILE/copy-kernel-$(1).bin := copy-kernel.bin
IMAGES := factory.bin
IMAGE/factory.bin := append-rootfs | pad-rootfs | pad-to 6144k | \
storlink-default-images $(1)

14
target/linux/gemini/image/copy-kernel/Makefile
View File

@ -13,20 +13,26 @@ OBJCOPY := $(CROSS_COMPILE)objcopy
BIN_FLAGS := -O binary -S
all: copy-kernel.bin
SRC_DIR := $(CURDIR)/
OUT_DIR := $(if $(O),$(if $(patsubst %/,,$(O)),$(O)/,$(O)),$(SRC_DIR))
all: $(OUT_DIR)copy-kernel.bin
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
install:
%.o : %.S
$(OUT_DIR):
mkdir -p $(OUT_DIR)
$(OUT_DIR)%.o : $(SRC_DIR)%.S | $(OUT_DIR)
$(AS) $(ASFLAGS) -k -o $@ $<
%.bin: %.o
$(OUT_DIR)%.bin: $(OUT_DIR)%.o
$(OBJCOPY) $(BIN_FLAGS) $< $@
mrproper: clean
clean:
rm -f copy-kernel.bin copy-kernel.o
rm -f $(OUT_DIR)copy-kernel.bin $(OUT_DIR)copy-kernel.o