From: Sean Christopherson <seanjc@google.com>
To: Edward Liaw <edliaw@google.com>
Cc: shuah@kernel.org, "Mark Brown" <broonie@kernel.org>,
"Jaroslav Kysela" <perex@perex.cz>,
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Subject: Re: [PATCH v2 4/5] selftests: Drop define _GNU_SOURCE
Date: Wed, 8 May 2024 06:54:40 -0700 [thread overview]
Message-ID: <ZjuEILj0SZRuTL9I@google.com> (raw)
In-Reply-To: <20240507214254.2787305-5-edliaw@google.com>
On Tue, May 07, 2024, Edward Liaw wrote:
> _GNU_SOURCE is provided by KHDR_INCLUDES, so it should be dropped to
> prevent _GNU_SOURCE redefined warnings.
...
> diff --git a/tools/testing/selftests/x86/test_syscall_vdso.c b/tools/testing/selftests/x86/test_syscall_vdso.c
> index 8965c311bd65..5cd13279bba5 100644
> --- a/tools/testing/selftests/x86/test_syscall_vdso.c
> +++ b/tools/testing/selftests/x86/test_syscall_vdso.c
> @@ -8,10 +8,6 @@
> * Can be built statically:
> * gcc -Os -Wall -static -m32 test_syscall_vdso.c thunks_32.S
> */
> -#undef _GNU_SOURCE
> -#define _GNU_SOURCE 1
> -#undef __USE_GNU
> -#define __USE_GNU 1
AFAICT, manually defining __USE_GNU is frowned upon, so I'm guessing the __USE_GNU
stuff is just the result of misguided copy+paste. But it would be nice to get
confirmation that this test isn't doing something clever. Or at the very least,
explain the removal of __USE_GNU in the changelog.
> #include <unistd.h>
> #include <stdlib.h>
> #include <string.h>
next prev parent reply other threads:[~2024-05-08 13:54 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 21:38 [PATCH v2 0/5] Define _GNU_SOURCE for sources using Edward Liaw
2024-05-07 21:38 ` [PATCH v2 1/5] selftests: Compile kselftest headers with -D_GNU_SOURCE Edward Liaw
2024-05-08 7:48 ` Muhammad Usama Anjum
2024-05-08 12:05 ` Mark Brown
2024-05-08 21:23 ` John Hubbard
2024-05-07 21:38 ` [PATCH v2 2/5] selftests/sgx: Include KHDR_INCLUDES in Makefile Edward Liaw
2024-05-08 7:49 ` Muhammad Usama Anjum
2024-05-08 15:33 ` Dave Hansen
2024-05-08 16:44 ` Jarkko Sakkinen
2024-05-08 21:25 ` John Hubbard
2024-05-07 21:38 ` [PATCH v2 3/5] selftests: " Edward Liaw
2024-05-07 22:36 ` Jarkko Sakkinen
2024-05-08 7:49 ` Muhammad Usama Anjum
2024-05-08 21:41 ` John Hubbard
2024-05-09 0:29 ` Edward Liaw
2024-05-09 1:03 ` John Hubbard
2024-05-09 5:14 ` Mark Brown
2024-05-07 21:38 ` [PATCH v2 4/5] selftests: Drop define _GNU_SOURCE Edward Liaw
2024-05-08 7:50 ` Muhammad Usama Anjum
2024-05-08 13:54 ` Sean Christopherson [this message]
2024-05-08 20:27 ` Edward Liaw
2024-05-08 21:39 ` John Hubbard
2024-05-07 21:38 ` [PATCH v2 5/5] selftests: Drop duplicate -D_GNU_SOURCE Edward Liaw
2024-05-08 7:58 ` Muhammad Usama Anjum
2024-05-08 21:49 ` John Hubbard
2024-05-07 23:28 ` [PATCH v2 0/5] Define _GNU_SOURCE for sources using Kees Cook
2024-05-08 13:47 ` Sean Christopherson
2024-05-08 18:03 ` Edward Liaw
2024-05-08 23:10 ` Shuah Khan
2024-05-09 6:13 ` Edward Liaw
2024-05-09 14:37 ` Shuah Khan
2024-05-09 17:45 ` Edward Liaw
2024-05-09 18:20 ` Muhammad Usama Anjum
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