From: LEROY Christophe <christophe.leroy2@cs-soprasteria.com>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>,
LEROY Christophe <christophe.leroy2@cs-soprasteria.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Naveen N Rao <naveen@kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>, Theodore Ts'o <tytso@mit.edu>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Shuah Khan <shuah@kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-trace-kernel@vger.kernel.org"
<linux-trace-kernel@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>
Subject: Re: [PATCH v2 16/17] selftests: vdso: Make VDSO function call more generic
Date: Mon, 26 Aug 2024 07:48:33 +0000 [thread overview]
Message-ID: <2d4e5b66-3aee-40d9-acd3-394e4100ecf5@cs-soprasteria.com> (raw)
In-Reply-To: <Zsww1IgALClDUf8g@zx2c4.com>
Le 26/08/2024 à 09:37, Jason A. Donenfeld a écrit :
> On Thu, Aug 22, 2024 at 09:13:24AM +0200, Christophe Leroy wrote:
>> On powerpc, a call to a VDSO function is not a standard C function
>> call. Unlike x86 that returns a negated error code in case of an
>> error, powerpc sets CR[SO] and returns the error code as a
>> positive value.
>>
>> So use a macro called VDSO_CALL() which takes a pointer to the
>> function to call, the number of arguments and the arguments.
>
> You'll probably want to move to VDSO_CALL() for the whole test suite,
> not just the getrandom one, right?
Yes indeed, the following needs it as well:
vdso_test_abi.c
vdso_test_getcpu.c
vdso_test_gettimeofday.c
vdso_test_correctness.c
Christophe
next prev parent reply other threads:[~2024-08-26 7:48 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-22 7:13 [PATCH v2 00/17] Wire up getrandom() vDSO implementation on powerpc Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 01/17] asm-generic/unaligned.h: Extract common header for vDSO Christophe Leroy
2024-08-26 7:20 ` Jason A. Donenfeld
2024-08-26 7:32 ` Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 02/17] vdso: Clean header inclusion in getrandom Christophe Leroy
2024-08-26 8:07 ` Jason A. Donenfeld
2024-08-26 8:37 ` Christophe Leroy
2024-08-26 8:58 ` Jason A. Donenfeld
2024-08-26 10:45 ` Christophe Leroy
2024-08-26 13:17 ` Jason A. Donenfeld
2024-08-26 13:24 ` Thomas Gleixner
2024-08-22 7:13 ` [PATCH v2 03/17] vdso: Add __arch_get_k_vdso_rng_data() Christophe Leroy
2024-08-26 7:24 ` Jason A. Donenfeld
2024-08-22 7:13 ` [PATCH v2 04/17] vdso: Add missing c-getrandom-y in Makefile Christophe Leroy
2024-08-26 7:40 ` Jason A. Donenfeld
2024-08-22 7:13 ` [PATCH v2 05/17] vdso: Avoid call to memset() by getrandom Christophe Leroy
2024-08-26 8:01 ` Jason A. Donenfeld
2024-08-27 18:08 ` Eric Biggers
2024-08-27 18:22 ` Jason A. Donenfeld
2024-08-27 22:53 ` Segher Boessenkool
2024-08-28 11:18 ` Jason A. Donenfeld
2024-08-28 12:24 ` Arnd Bergmann
2024-08-28 12:26 ` Jason A. Donenfeld
2024-08-28 12:51 ` Segher Boessenkool
2024-08-28 12:45 ` Segher Boessenkool
2024-08-28 15:40 ` Ard Biesheuvel
2024-08-28 16:20 ` Segher Boessenkool
2024-08-28 17:12 ` Ard Biesheuvel
2024-08-28 17:25 ` Segher Boessenkool
2024-08-29 17:36 ` Christophe Leroy
2024-08-29 18:02 ` Segher Boessenkool
2024-08-29 18:50 ` Christophe Leroy
2024-08-30 10:01 ` Michael Ellerman
2024-08-28 12:33 ` Segher Boessenkool
2024-08-28 12:51 ` Jason A. Donenfeld
2024-08-22 7:13 ` [PATCH v2 06/17] vdso: Change getrandom's generation to unsigned long Christophe Leroy
2024-08-26 7:50 ` Jason A. Donenfeld
2024-08-26 8:01 ` Christophe Leroy
2024-08-26 8:16 ` Jason A. Donenfeld
2024-08-26 9:43 ` Thomas Gleixner
2024-08-26 9:48 ` Jason A. Donenfeld
2024-08-26 10:20 ` LEROY Christophe
2024-08-22 7:13 ` [PATCH v2 07/17] mm: Define VM_DROPPABLE for powerpc/32 Christophe Leroy
2024-08-26 9:53 ` kernel test robot
2024-08-26 10:13 ` kernel test robot
2024-08-26 21:34 ` kernel test robot
2024-08-22 7:13 ` [PATCH v2 08/17] powerpc: Add little endian variants of LWZX_BE and STWX_BE Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 09/17] powerpc/vdso32: Add crtsavres Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 10/17] powerpc/vdso: Refactor CFLAGS for CVDSO build Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 11/17] powerpc/vdso: Wire up getrandom() vDSO implementation Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 12/17] selftests: vdso: Fix powerpc64 vdso_config Christophe Leroy
2024-08-22 7:13 ` [PATCH v2 13/17] selftests: vdso: Don't hard-code location of vDSO sources Christophe Leroy
2024-08-26 7:26 ` Jason A. Donenfeld
2024-08-22 7:13 ` [PATCH v2 14/17] selftests: vdso: Make test_vdso_getrandom look for the right vDSO function Christophe Leroy
2024-08-26 7:28 ` Jason A. Donenfeld
2024-08-26 7:35 ` LEROY Christophe
2024-08-22 7:13 ` [PATCH v2 15/17] selftests: vdso: Fix build of test_vdso_chacha Christophe Leroy
2024-08-26 7:33 ` Jason A. Donenfeld
2024-08-22 7:13 ` [PATCH v2 16/17] selftests: vdso: Make VDSO function call more generic Christophe Leroy
2024-08-26 7:37 ` Jason A. Donenfeld
2024-08-26 7:48 ` LEROY Christophe [this message]
2024-08-22 7:13 ` [PATCH v2 17/17] selftests: vdso: Add support for vdso_test_random for powerpc Christophe Leroy
2024-08-26 7:19 ` [PATCH v2 00/17] Wire up getrandom() vDSO implementation on powerpc Jason A. Donenfeld
2024-08-26 8:23 ` Jason A. Donenfeld
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