[RFC PATCH] ld/ARM: Increase maximum page size to 64kB

[Kyrill Tkachov]

On 10/07/14 12:00, Will Newton wrote:
> On 10 July 2014 09:52, Kyrill Tkachov <kyrylo.tkachov@arm.com> wrote:
>> On 08/07/14 15:02, Will Newton wrote:
>>> On 1 July 2014 11:11, Nicholas Clifton <nickc@redhat.com> wrote:
>>>> Hi Will,
>>>>
>>>>
>>>>> bfd/ChangeLog:
>>>>>
>>>>> 2014-06-26  Will Newton  <will.newton@linaro.org>
>>>>>
>>>>>           * elf32-arm.c (ELF_MAXPAGESIZE): Increase the default
>>>>>           value to 64kB and remove custom setting for NaCl.
>>>>>
>>>>> ld/ChangeLog:
>>>>>
>>>>> 2014-06-26  Will Newton  <will.newton@linaro.org>
>>>>>
>>>>>           * emulparams/armelf_linux.sh (TEXT_START_ADDR): Increase
>>>>>           alignment to 64kB boundary.
>>>>>
>>>>> ld/testsuite/ChangeLog:
>>>>>
>>>>> 2014-06-26  Will Newton  <will.newton@linaro.org>
>>>>>
>>>>>           * ld-arm/arm-lib.ld: Increase MAXPAGESIZE value to
>>>>>           match bfd.
>>>>>           * ld-arm/cortex-a8-fix-bl-rel-plt.d: Update offsets to
>>>>>           take into account increased segment alignment.
>>>>>           * ld-arm/ifunc-gdesc.r: Likewise.
>>>>>           * ld-arm/tls-lib.d: Likewise.
>>>>
>>>> Approved - please apply.
>>> Thanks. If anybody sees any breakage then please shout.
>> Hi Will,
>>
>> In the libstdc++ tetsuite I'm seeing some failures of the sort:
>>
>> /arm-none-eabi/install/arm-none-eabi/bin/ld: warning: address of
>> `text-segment' isn't multiple of maximum page size
>>
>> FAIL: 17_intro/freestanding.cc (test for excess errors)
>>
>> I haven't dug into it yet, but your patch is the first that came to mind
>> when seeing this.
>> Is that a problem in gcc/libstdc++?
> I'm not sure, but it would be interesting to find out. Do you have any
> more information e.g. command line or linker script being used?

Hi Will,
Sorry for the delay. The warning I was seeing was due to some bare-metal 
specs files that I was using placing the text segment at a 
non-64k-aligned position.
That's not a problem with this patch.

Kyrill

>
> It seems that building libstdc++ involves building the whole of gcc. :-/
>