From patchwork Mon May 29 13:07:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangjin Wu X-Patchwork-Id: 13258547 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2FC05C7EE29 for ; Mon, 29 May 2023 13:07:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229460AbjE2NH6 (ORCPT ); Mon, 29 May 2023 09:07:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229457AbjE2NH5 (ORCPT ); Mon, 29 May 2023 09:07:57 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.155.67.158]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 693B091; Mon, 29 May 2023 06:07:55 -0700 (PDT) X-QQ-mid: bizesmtp85t1685365665tgzca5zc Received: from linux-lab-host.localdomain ( [119.123.130.80]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 29 May 2023 21:07:44 +0800 (CST) X-QQ-SSF: 01200000000000D0V000000A0000000 X-QQ-FEAT: hvKw+PyJ8U6+uRVu/0AXG0i6+eBsNcwRbz2CZsT5niaVOLEjABKXMEbu2AisN uImWTWIWpl/bgpjuSuZqGv9sxOil3B8sj88KJEHleCbTRcmkdCIZoLB6KuLdqDUTW/bfNHC qcNmAe1dPOSnMPzWdJrTK1Ms82OBZOdRa1pz17Cotzmwgaz+8DZqQVeH3+/EUj/1QaNFLGz b2cbQLpbMgX9/StyBR2UmwLCa8hQ3pd50wYkdVem43lLqUAUknVygFLGVgwnoRvuXt9XlD+ WyFHJ5lc3V/61Lo3BiaP/0HyPHI9bUnvaaUqXjUNVMv/vv4BLH2GeBCvf6tk9glgdi9gP0O rWlZSsaWPXG4mlGnUKp0F+MP099LijaKfcqzPbPVlQN2SixFKEGVRTrwrpVqUAPa09QjuW9 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 13225124570130202105 From: Zhangjin Wu To: w@1wt.eu Cc: arnd@arndb.de, falcon@tinylab.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, thomas@t-8ch.de Subject: [PATCH v2 6/7] tools/nolibc: arm: add missing my_syscall6 Date: Mon, 29 May 2023 21:07:42 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrsz:qybglogicsvrsz3a-3 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org This is required by the coming removal of the oldselect and newselect support. pselect6/pselect6_time64 will be used unconditionally, they have 6 arguments. Suggested-by: Arnd Bergmann Link: https://lore.kernel.org/linux-riscv/20230524182431.268908-1-falcon@tinylab.org/T/#t Signed-off-by: Zhangjin Wu --- tools/include/nolibc/arch-arm.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/include/nolibc/arch-arm.h b/tools/include/nolibc/arch-arm.h index 45b89ffe8247..ca4c66987497 100644 --- a/tools/include/nolibc/arch-arm.h +++ b/tools/include/nolibc/arch-arm.h @@ -198,6 +198,29 @@ struct sys_stat_struct { _arg1; \ }) +#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \ + register long _arg1 __asm__ ("r0") = (long)(arg1); \ + register long _arg2 __asm__ ("r1") = (long)(arg2); \ + register long _arg3 __asm__ ("r2") = (long)(arg3); \ + register long _arg4 __asm__ ("r3") = (long)(arg4); \ + register long _arg5 __asm__ ("r4") = (long)(arg5); \ + register long _arg6 __asm__ ("r5") = (long)(arg6); \ + \ + __asm__ volatile ( \ + _NOLIBC_THUMB_SET_R7 \ + "svc #0\n" \ + _NOLIBC_THUMB_RESTORE_R7 \ + : "=r"(_arg1), "=r" (_num) \ + : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ + "r"(_arg6), "r"(_num) \ + : "memory", "cc", "lr" \ + ); \ + _arg1; \ +}) + + char **environ __attribute__((weak)); const unsigned long *_auxv __attribute__((weak));