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Date: Mon, 3 Jun 2024 14:31:59 +0100
From: Mark Brown <broonie@kernel.org>
To: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [Bug Report] selftests: arm64: build errors
Message-ID: <7b7f4dd1-bc13-4827-84d6-20ebed7119b6@sirena.org.uk>
References: <5ec0f2f3-5259-41a9-a25d-5baf1680dd10@collabora.com>
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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/inclu=
de
> -mbranch-protection=3Dpac-ret  -march=3Darmv8.2-a
> In file included from pac.c:13:
> ../../kselftest_harness.h: In function =E2=80=98clone3_vfork=E2=80=99:
> ../../kselftest_harness.h:88:9: error: variable =E2=80=98args=E2=80=99 ha=
s initializer but
> incomplete type
>    88 |  struct clone_args args =3D {

This is in the generic code.

>   CC       check_prctl
> check_prctl.c: In function =E2=80=98set_tagged_addr_ctrl=E2=80=99:
> check_prctl.c:19:14: error: =E2=80=98PR_SET_TAGGED_ADDR_CTRL=E2=80=99 und=
eclared (first use
> in this function)
>    19 |  ret =3D prctl(PR_SET_TAGGED_ADDR_CTRL, val, 0, 0, 0);
>=20
> gcc -mbranch-protection=3Dstandard -DBTI=3D1 -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 =E2=80=98handler=E2=80=99:
> test.c:85:50: error: =E2=80=98PSR_BTYPE_MASK=E2=80=99 undeclared (first u=
se in this
> function); did you mean =E2=80=98PSR_MODE_MASK=E2=80=99?
>    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.

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