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net: wan: wanxl: refactor the firmware rebuild rule

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Split the big recipe into 3 stages: compile, link, and hexdump.

After this commit, the build log with CONFIG_WANXL_BUILD_FIRMWARE
will look like this:

  M68KAS  drivers/net/wan/wanxlfw.o
  M68KLD  drivers/net/wan/wanxlfw.bin
  BLDFW   drivers/net/wan/wanxlfw.inc
  CC [M]  drivers/net/wan/wanxl.o

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2020-03-26 14:57:17 +09:00
parent 734f3719d3
commit 7d7df745b0
1 changed files with 18 additions and 9 deletions
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27
drivers/net/wan/Makefile
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@ -47,14 +47,23 @@ else
M68KLD = $(CROSS_COMPILE_M68K)ld
endif
quiet_cmd_build_wanxlfw = BLD FW $@
cmd_build_wanxlfw = \
$(M68KCC) -D__ASSEMBLY__ -Wp,-MD,$(depfile) -I$(srctree)/include/uapi -c -o $(obj)/wanxlfw.o $<; \
$(M68KLD) --oformat binary -Ttext 0x1000 $(obj)/wanxlfw.o -o $(obj)/wanxlfw.bin; \
hexdump -ve '"\n" 16/1 "0x%02X,"' $(obj)/wanxlfw.bin | sed 's/0x ,//g;1s/^/static const u8 firmware[]={/;$$s/,$$/\n};\n/' >$(obj)/wanxlfw.inc; \
rm -f $(obj)/wanxlfw.bin $(obj)/wanxlfw.o
quiet_cmd_build_wanxlfw = BLDFW $@
cmd_build_wanxlfw = hexdump -ve '"\n" 16/1 "0x%02X,"' $< | \
sed 's/0x ,//g;1s/^/static const u8 firmware[]={/;$$s/,$$/\n};\n/' > $@
$(obj)/wanxlfw.inc: $(src)/wanxlfw.S
$(call if_changed_dep,build_wanxlfw)
targets += wanxlfw.inc
$(obj)/wanxlfw.inc: $(obj)/wanxlfw.bin FORCE
$(call if_changed,build_wanxlfw)
quiet_cmd_m68kld_bin_o = M68KLD $@
cmd_m68kld_bin_o = $(M68KLD) --oformat binary -Ttext 0x1000 $< -o $@
$(obj)/wanxlfw.bin: $(obj)/wanxlfw.o FORCE
$(call if_changed,m68kld_bin_o)
quiet_cmd_m68kas_o_S = M68KAS $@
cmd_m68kas_o_S = $(M68KCC) -D__ASSEMBLY__ -Wp,-MD,$(depfile) -I$(srctree)/include/uapi -c -o $@ $<
$(obj)/wanxlfw.o: $(src)/wanxlfw.S FORCE
$(call if_changed_dep,m68kas_o_S)
endif
targets += wanxlfw.inc wanxlfw.bin wanxlfw.o