Re: [PATCH 1/3] selftests/exec: Build both static and non-static load_address tests

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On 8/7/24 3:22 PM, Muhammad Usama Anjum wrote:
> On 5/9/24 11:16 AM, Kees Cook wrote:
>> On Wed, May 08, 2024 at 07:54:13PM -0700, John Hubbard wrote:
>>> Didn't we learn recently, though, that -static-pie is gcc 8.1+, while the
>>> kernel's minimum gcc version is 5?
>>
>> Yes, that's true. If we encounter anyone trying to build the selftests
>> with <8.1 I think we'll have to add a compiler version test in the
>> Makefile to exclude the static pie tests.
>>
>> There's also the potential issue with arm64 builds that caused the
>> original attempt at -static. We'll likely need an exclusion there too.
>>
> I'm not getting failures for arm64 instead for arm. I'm trying to find
> this "rcrt1.o" file. Does anybody have any idea if this error can be
> resolved by missing file or is it something arm-linux-gnueabihf
> toolchain doesn't support?
Do you have any idea?

> 
> make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
> arm-linux-gnueabihf-gcc -Wall -Wno-nonnull -D_GNU_SOURCE=
> -Wl,-z,max-page-size=0x1000 \
>         -fPIE -static-pie load_address.c -o
> /home/usama/repos/kernel/linux_mainline/tools/testing/selftests/exec/load_address.static.0x1000
> /usr/lib/gcc-cross/arm-linux-gnueabihf/12/../../../../arm-linux-gnueabihf/bin/ld:
> cannot find rcrt1.o: No such file or directory
> collect2: error: ld returned 1 exit status
> make: *** [Makefile:39:
> /home/usama/repos/kernel/linux_mainline/tools/testing/selftests/exec/load_address.static.0x1000]
> Error 1


-- 
BR,
Muhammad Usama Anjum





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