From nobody Wed Oct 11 15:44:27 2023 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4S5HBg57xzz4wJpX; Wed, 11 Oct 2023 15:44:27 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4S5HBg4Pllz3dRk; Wed, 11 Oct 2023 15:44:27 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1697039067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=z0Z9Mzq22ui0d+GExNsFtZ1g24YQS3R6YOjGo4ZqeaQ=; b=KfoLzWdmFs8jaibA8JMAtFwSEjiKsjeTzFHoBrx6rY5/u/YtYIFahA4DEWC/KeLZ1crg4K 3IO5Vfa6YJd/dMU8WoCk0BlfvqtnJhtw+/gozf2A4ysn/W9cvhWtXodjM61246jXhCg9h5 jw6JuKPtwiF0/+vI8FXYIs//M4nbE4AlWf6uqiqtC8tZzd44AnOrb3DennpKxgWCIb87ab UsYeo0LYIZY/n84/S5MVn/mmD9w2IK7UZDCNVpfvxQQlOguzfuZG+LqOXfE5GLUVXJ+6gS 7kUaBZcB3hjzEwB5azk1WtAbZsw8cAQJeDzlJ4zxNPyrectjtoEnXbewjRJN5g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1697039067; a=rsa-sha256; cv=none; b=eyZ9O8sLpeYJLjfJij8CN2lQ5C0VWRaESsjFdSAJ7clrijaBtwpUV26Dyi6iiSz/gvsqlG eSGgtFP0x/H8uuPGLLSAZjQUUHzn+s7scxpjPV+6gZZyYwn0ygyOApQZd4Qls0cM/akVz2 Z/xM0syiHL2p9DpxuPinyyKnhY5EaCs64TquDHx5vWHtNJjnIyJV5fE7HK8ncB0/jOkpv4 NjzHxYs9HlsJ9I3dFWmx1I7G+7WZE6DhSsyh6Q4UKz7uDViYe/WEsIYDLonJigvkGK54vx 4jHaUuflgbGZEfxlz+tDbMsU9SFtum2wUi0eqkWawUPiwoF/XVtNrk1owLYcUQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1697039067; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=z0Z9Mzq22ui0d+GExNsFtZ1g24YQS3R6YOjGo4ZqeaQ=; b=iLUc+drhYGXLqynf+Oa0KzdS6UAei8pPOw+JBsEzxKMFe5OwhD4/VHLKWuCz8jNfi/rHGd jJyeCY6dXeDrg85YYD7FMUBLENBERclnBOjyiUfgjzNnn9O8Ewd+ZAuhDOzfn8RxwiPg0f gLcgrFh0TLSp2yWJw5/4HGTzskwdBU6+xmdAYTBydp4EKZSZQlf3Q3EDazuSFq1DMLtwDa KCE24L+/vka8PpcQWBO/Wwh6GBWWsP4o1KB9G/h4GJkeWjh+HRW0mmmytpXGJBk+YcEowT LWIceCBMnaml/RYPFCXsVvHxI+ef2JAdLPQFsgDssRvikyWwipnp/4y8B9ungQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4S5HBg3WrlzC7D; Wed, 11 Oct 2023 15:44:27 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.17.1/8.17.1) with ESMTP id 39BFiReY023980; Wed, 11 Oct 2023 15:44:27 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.17.1/8.17.1/Submit) id 39BFiRLI023977; Wed, 11 Oct 2023 15:44:27 GMT (envelope-from git) Date: Wed, 11 Oct 2023 15:44:27 GMT Message-Id: <202310111544.39BFiRLI023977@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: John Baldwin Subject: git: 4de5dace1ace - stable/14 - riscv: Save gp in the trapframe in both modes List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: 4de5dace1acee104ecacc34e37a17f98d194164c Auto-Submitted: auto-generated The branch stable/14 has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=4de5dace1acee104ecacc34e37a17f98d194164c commit 4de5dace1acee104ecacc34e37a17f98d194164c Author: John Baldwin AuthorDate: 2023-09-05 16:04:54 +0000 Commit: John Baldwin CommitDate: 2023-10-11 15:10:32 +0000 riscv: Save gp in the trapframe in both modes Similar to d95fbf4e1a12565908b04b442263fe60c9e890b4, always save gp in the trapframe even though it is only restored when returning to user mode. This is mostly a debugging aid so that dump_regs() doesn't print out random stack garbage as the value of gp for kernel faults (e.g. sysctl debug.kdb.trap=1) as well as keeping kgdb's trapframe unwinder from reporting bogus values of $gp for lower frames. Reviewed by: mhorne, jrtc27, markj Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D41699 (cherry picked from commit 3b35d2a8af43c2e3ea8cb5e1363ac87ec5eadeaf) --- sys/riscv/riscv/exception.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/riscv/riscv/exception.S b/sys/riscv/riscv/exception.S index 1aee009a4e00..8acb5cd691d4 100644 --- a/sys/riscv/riscv/exception.S +++ b/sys/riscv/riscv/exception.S @@ -43,9 +43,9 @@ sd ra, (TF_RA)(sp) sd tp, (TF_TP)(sp) + sd gp, (TF_GP)(sp) .if \mode == 0 /* We came from userspace. */ - sd gp, (TF_GP)(sp) .option push .option norelax /* Load the kernel's global pointer */