From patchwork Wed Aug 19 15:38:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair Francis X-Patchwork-Id: 40291 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 9F449386F80B; Wed, 19 Aug 2020 15:49:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9F449386F80B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1597852140; bh=5uowlREZuznlbH9K+4EOK0GZVG8nzncAUiB6GH0l/aE=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=CNgrxqK4TneXKUK/HHD0X9OsVUYm6a/0NQo9vM4mHSBPAatv+vgmuGhy4uKecLtVa FXMou+0Cl8tXyytsDXNkWsWNw5UiR1J+NZG8LK4KhoPRkQbr6QVC87FDT3LDxsA31r IBVajvuvCIvFY4Lx374iSo6I3sFGzQ2m5sMPS3W8= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from esa1.hgst.iphmx.com (esa1.hgst.iphmx.com [68.232.141.245]) by sourceware.org (Postfix) with ESMTPS id 5738B384242C for ; Wed, 19 Aug 2020 15:48:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 5738B384242C IronPort-SDR: h5BMEux/NQNi/xWtnraJC7n741/ac0a15XAVJ3ItSiMq/g90vHJ+WkDiU11WGqZhFYpIGKhq1A SgkjewKajXNxJfUgNw01iOFKi0jUCKTJHhR/SzsdvIH0N838EUikEkPTeDLjNLxtkJywDmRg1V UrRxqZwkNvJOD03pNurllmV0AUAjP3X8ly6pQXUfPr9OdgZBzFYekaQ6QQpnqhRjz17DD9z7BM Y7/RHuNbMFc3VJYnL+cUJobUHDh8ifTIFqmk/9jrTSLfrQkWHS4GCdsKj6dcqMEpdUo725UNrL /+o= X-IronPort-AV: E=Sophos;i="5.76,331,1592841600"; d="scan'208";a="254766933" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 19 Aug 2020 23:48:57 +0800 IronPort-SDR: FH4HUtHWQiIs3E9IZzbeFqozuY3mcS+UEJU60tzLKKYqks4SG9P+ZB/UtTP5uu6lqcDsYTeqMy lKdRFjnFWpzQ== Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2020 08:35:55 -0700 IronPort-SDR: xwCWyCWYQNP5SROVXPQYX2s5K1k3OuJi4XgvM/N2bi/G3ztS3ZDATA7jOdUIy36M2x/8Aph6E1 sNgVIZ37BirQ== WDCIronportException: Internal Received: from lpt-kalia-a.ad.shared (HELO risc6-mainframe.hgst.com) ([10.86.59.58]) by uls-op-cesaip01.wdc.com with ESMTP; 19 Aug 2020 08:48:57 -0700 To: libc-alpha@sourceware.org Subject: [PATCH v5 04/17] RISC-V: Add support for 32-bit vDSO calls Date: Wed, 19 Aug 2020 08:38:49 -0700 Message-Id: <1d36bb7cfe138b6e552afc53536cf60f5d14ccd7.1597851293.git.alistair.francis@wdc.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: References: MIME-Version: 1.0 X-Spam-Status: No, score=-13.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Alistair Francis via Libc-alpha From: Alistair Francis Reply-To: Alistair Francis Cc: alistair.francis@wdc.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Reviewed-by: Maciej W. Rozycki --- sysdeps/unix/sysv/linux/riscv/sysdep.h | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/sysdeps/unix/sysv/linux/riscv/sysdep.h b/sysdeps/unix/sysv/linux/riscv/sysdep.h index 430fa23a58..e94afbf106 100644 --- a/sysdeps/unix/sysv/linux/riscv/sysdep.h +++ b/sysdeps/unix/sysv/linux/riscv/sysdep.h @@ -135,13 +135,24 @@ #else /* !__ASSEMBLER__ */ -# define VDSO_NAME "LINUX_4.15" -# define VDSO_HASH 182943605 +# if __WORDSIZE == 64 +# define VDSO_NAME "LINUX_4.15" +# define VDSO_HASH 182943605 + +/* List of system calls which are supported as vsyscalls only + for RV64. */ +# define HAVE_CLOCK_GETRES64_VSYSCALL "__vdso_clock_getres" +# define HAVE_CLOCK_GETTIME64_VSYSCALL "__vdso_clock_gettime" +# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday" +# else +# define VDSO_NAME "LINUX_5.4" +# define VDSO_HASH 61765876 + +/* RV32 does not support the gettime VDSO syscalls. */ +# endif -/* List of system calls which are supported as vsyscalls. */ -# define HAVE_CLOCK_GETRES64_VSYSCALL "__vdso_clock_getres" -# define HAVE_CLOCK_GETTIME64_VSYSCALL "__vdso_clock_gettime" -# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday" +/* List of system calls which are supported as vsyscalls (for RV32 and + RV64). */ # define HAVE_GETCPU_VSYSCALL "__vdso_getcpu" # define INTERNAL_SYSCALL(name, nr, args...) \