Re: [PATCH] MIPS: add uImage build target

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Hi Florian,

On 21/08/13 16:08, Florian Fainelli wrote:
> 2013/8/21 James Hogan <james.hogan@xxxxxxxxxx>:
>> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
>> index b2be6b8..c4f339e 100644
>> --- a/arch/mips/Makefile
>> +++ b/arch/mips/Makefile
>> @@ -284,7 +284,7 @@ vmlinux.64: vmlinux
>>  all:   $(all-y)
>>
>>  # boot
>> -vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE
>> +vmlinux.bin vmlinux.ecoff vmlinux.srec uImage: $(vmlinux-32) FORCE
>>         $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
>>
>>  # boot/compressed
>> @@ -327,6 +327,7 @@ define archhelp
>>         echo '  vmlinuz.ecoff        - ECOFF zboot image'
>>         echo '  vmlinuz.bin          - Raw binary zboot image'
>>         echo '  vmlinuz.srec         - SREC zboot image'
>> +       echo '  uImage               - U-Boot image (gzip)'
> 
> This is not quite accurate, since you introduce two new uImage
> targets, this should be:
> 
> +       echo '  uImage               - U-Boot image'
> +       echo '  uImage.gz               - U-Boot image (gzip)'

Only uImage is passed through to arch/mips/boot/Makefile, but yes, they
probably both should be.

> 
>>         echo
>>         echo '  These will be default as appropriate for a configured platform.'
>>  endef
>> diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore
>> index f210b09..a73d6e2 100644
>> --- a/arch/mips/boot/.gitignore
>> +++ b/arch/mips/boot/.gitignore
>> @@ -4,3 +4,4 @@ vmlinux.*
>>  zImage
>>  zImage.tmp
>>  calc_vmlinuz_load_addr
>> +uImage
>> diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
>> index 851261e..8169d42 100644
>> --- a/arch/mips/boot/Makefile
>> +++ b/arch/mips/boot/Makefile
>> @@ -40,3 +40,18 @@ quiet_cmd_srec = OBJCOPY $@
>>        cmd_srec = $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $@
>>  $(obj)/vmlinux.srec: $(VMLINUX) FORCE
>>         $(call if_changed,srec)
>> +
>> +UIMAGE_LOADADDR  = $(shell $(NM) $(VMLINUX) | grep "\b_text\b"        | cut -f1 -d\ )
> 
> Is not VMLINUX_LOAD_ADDRESS suitable here?

It's only passed through to arch/mips/boot/compressed. It can always be
made to pass it to arch/mips/boot too though.

> 
>> +UIMAGE_ENTRYADDR = $(shell $(NM) $(VMLINUX) | grep '\bkernel_entry\b' | cut -f1 -d\ )
> 
> This logic already exists in arch/mips/boot/compressed/Makefile, so we
> might want to move this to arch/mips/Makefile? This could be a
> preliminary or subsequent patch, your call.

Thanks for the feedback. I'll refactor it a bit to avoid duplication.

Cheers
James



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