From owner-svn-src-all@freebsd.org Tue May 24 13:59:15 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B466B4737A; Tue, 24 May 2016 13:59:15 +0000 (UTC) (envelope-from br@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E15361A6D; Tue, 24 May 2016 13:59:14 +0000 (UTC) (envelope-from br@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u4ODxEEb000968; Tue, 24 May 2016 13:59:14 GMT (envelope-from br@FreeBSD.org) Received: (from br@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u4ODxE5a000967; Tue, 24 May 2016 13:59:14 GMT (envelope-from br@FreeBSD.org) Message-Id: <201605241359.u4ODxE5a000967@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: br set sender to br@FreeBSD.org using -f From: Ruslan Bukin Date: Tue, 24 May 2016 13:59:14 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r300614 - head/sys/riscv/riscv X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 May 2016 13:59:15 -0000 Author: br Date: Tue May 24 13:59:13 2016 New Revision: 300614 URL: https://svnweb.freebsd.org/changeset/base/300614 Log: Store the original value of stack pointer to the exception frame (the value we had before supervisor exception occurred). This helps consumers (e.g. DTrace) to not proceed additional calculations. Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Modified: head/sys/riscv/riscv/exception.S Modified: head/sys/riscv/riscv/exception.S ============================================================================== --- head/sys/riscv/riscv/exception.S Tue May 24 13:58:07 2016 (r300613) +++ head/sys/riscv/riscv/exception.S Tue May 24 13:59:13 2016 (r300614) @@ -93,7 +93,9 @@ __FBSDID("$FreeBSD$"); .if \el == 1 /* Store kernel sp */ - sd sp, (TF_SP)(sp) + li t1, TF_SIZE + add t0, sp, t1 + sd t0, (TF_SP)(sp) .else /* Store user sp */ csrr t0, sscratch