Re: [PATCH 1/5] kbuild: thin archives final link close --whole-archives option

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On Wed, Jun 21, 2017 at 1:32 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Wed, Jun 21, 2017 at 1:10 PM, Nicholas Piggin <npiggin@xxxxxxxxx> wrote:
>> On Wed, 21 Jun 2017 12:49:10 +0200
>> Arnd Bergmann <arnd@xxxxxxxx> wrote:
>>
>>> On Wed, Jun 21, 2017 at 12:38 PM, Nicholas Piggin <npiggin@xxxxxxxxx> wrote:
>>> > On Wed, 21 Jun 2017 12:21:16 +0200
>>> > Arnd Bergmann <arnd@xxxxxxxx> wrote:
>>> >
>>>
>>> I'm building on top of yesterday's linux-next at the moment,
>>> with a number of my own patches applied
>>>
>>> > I can take a look at ARM and try to get it at least to parity with
>>> > incremental link. Any particular config options required?
>>>
>>> This is the patch I am testing with:
>>>
>>> https://pastebin.com/HQuhCEmK
>>> I have not looked at that in a while, no idea if it works, or
>>> if it has known problems.
>>>
>>> I last posted the patch in March for discussion:
>>>
>>> https://patchwork.kernel.org/patch/9626207/
>>
>> Well I just mean the stuff now in kbuild/thin-ac, not the LD_DCDE.
>> Just want to try getting thin archives up to a point where there are
>> no serious regressions first.
>
> For my build testing, I have now reverted most of my patch and only
> left the 'select THIN_ARCHIVES'. I'll let you know if I run into problems.

I just got one build failure on a randconfig build with THIN_ARCHIVES
but without LD_DCDE:

/home/arnd/cross-gcc/bin/arm-linux-gnueabi-ld: section .data VMA
[0000000000808000,000000000096cc7f] overlaps section .text VMA
[0000000000080080,00000000008a8427]
/home/arnd/cross-gcc/bin/arm-linux-gnueabi-ld: section .rodata VMA
[00000000008a9000,0000000000ea216f] overlaps section .data VMA
[0000000000808000,000000000096cc7f]
/home/arnd/cross-gcc/bin/arm-linux-gnueabi-ld: section .bss VMA
[000000000096cd00,000000000157896f] overlaps section .rodata VMA
[00000000008a9000,0000000000ea216f]
/home/arnd/cross-gcc/bin/arm-linux-gnueabi-ld: section __param VMA
[0000000000ea2170,0000000000ea5257] overlaps section .bss VMA
[000000000096cd00,000000000157896f]

haven't spent any time analyzing it further, maybe you can see right
away what caused this. If not, you could try the .config file at
https://pastebin.com/raw/YTZKH9Xe

        Arnd
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