linux-kernel - Re: [Bug Report] selftests: arm64: build errors

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Date: Tue, 4 Jun 2024 13:13:45 +0500
From: Muhammad Usama Anjum <usama.anjum@...labora.com>
To: Mark Brown <broonie@...nel.org>
Cc: Muhammad Usama Anjum <usama.anjum@...labora.com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Shuah Khan <shuah@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [Bug Report] selftests: arm64: build errors

On 6/3/24 6:31 PM, Mark Brown wrote:
> On Mon, Jun 03, 2024 at 06:28:16PM +0500, Muhammad Usama Anjum wrote:
> 
>> gcc pac.c /pauth/pac_corruptor.o /pauth/helper.o -o /pauth/pac -Wall -O2 -g
>> -I/linux_mainline/tools/testing/selftests/  -I/linux_mainline/tools/include
>> -mbranch-protection=pac-ret  -march=armv8.2-a
>> In file included from pac.c:13:
>> ../../kselftest_harness.h: In function ‘clone3_vfork’:
>> ../../kselftest_harness.h:88:9: error: variable ‘args’ has initializer but
>> incomplete type
>>    88 |  struct clone_args args = {
> 
> This is in the generic code.
> 
>>   CC       check_prctl
>> check_prctl.c: In function ‘set_tagged_addr_ctrl’:
>> check_prctl.c:19:14: error: ‘PR_SET_TAGGED_ADDR_CTRL’ undeclared (first use
>> in this function)
>>    19 |  ret = prctl(PR_SET_TAGGED_ADDR_CTRL, val, 0, 0, 0);
>>
>> gcc -mbranch-protection=standard -DBTI=1 -ffreestanding -Wall -Wextra -Wall
>> -O2 -g -I/linux_mainline/tools/testing/selftests/
>> -I/linux_mainline/tools/include  -c -o /bti/test-bti.o test.c
>> test.c: In function ‘handler’:
>> test.c:85:50: error: ‘PSR_BTYPE_MASK’ undeclared (first use in this
>> function); did you mean ‘PSR_MODE_MASK’?
>>    85 |  write(1, &"00011011"[((uc->uc_mcontext.pstate & PSR_BTYPE_MASK)
> 
>> I've GCC 8 installed. I'm not expecting the errors because of a little
>> older compiler. Any more ideas about the failures?
> 
> You need to run headers_install IIRC.
I'm running:
make headers && make -C tools/testing/selftests

I've tried gcc 12 as well.


-- 
BR,
Muhammad Usama Anjum