From nobody Thu Oct 27 21:30:06 2022 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 4MyzNZ3dqKz4g9GX; Thu, 27 Oct 2022 21:30:06 +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 4MyzNZ39Nyz3Rbw; Thu, 27 Oct 2022 21:30:06 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1666906206; 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=kU2rWdz2A9YMz7zyZUA4Xl4BOBg7hW1uIoHPOnnauBA=; b=phTUwEKagR4WFmtKQ04bz5D0Llfwk68S3KfXmRF9vlnUhvSI7+0i7ZFHQpNhRliAoMUvJJ kiREONxonDiLHmLKCGpab+aaBWoS3SyAB0x1KBKeIS84I5ZY1qDik/5hU2S4PWIgh5VqLQ mpVynYu9ydPwWWgShRHzhj6sRQ1xCFyI/tlaK3Q6yMhrsdr1WZKZh4I0DW7QGLt/3FXOzm Fn8M3D74nX9DUOSKdYlXBbE/WtMmXrcjLU4u2nd1GBP5T6sJBc0tl0yLsG+FZG4finDNt5 nig9l+pfvOdlAt/wArAaU0nSDoBNf/iRuRlpRatm0p8irWe/p3shnpgKbr93XA== 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 4MyzNZ26kVz1ByC; Thu, 27 Oct 2022 21:30:06 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 29RLU6bC019506; Thu, 27 Oct 2022 21:30:06 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 29RLU6K1019504; Thu, 27 Oct 2022 21:30:06 GMT (envelope-from git) Date: Thu, 27 Oct 2022 21:30:06 GMT Message-Id: <202210272130.29RLU6K1019504@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Olivier Houchard Subject: git: d78c2cd831d3 - main - arm64: Implement cpu_ptrace(). 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: cognet X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: d78c2cd831d346b94c00c72b5a94a1a4f0dd3e53 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1666906206; 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=kU2rWdz2A9YMz7zyZUA4Xl4BOBg7hW1uIoHPOnnauBA=; b=fZ1zExa8hM3SXEDHR4Et4tU8ByLaWxFbVmiVoclH6E/I3OA73/b5gGhW2VO9oCaQ+IvaRu PvXPtKd9z3flGyNHi0awlkjxRG5232NTEpBeRFh8IFbtPpix/8qVzJGurZh8OxViOo1RS+ MO1YIPSTCnDCK775OPtO+aKMb+rPzbOE/2/U1O77jKR7T/y89O2SpbgpXj59Gp7lIjFU2h s9UNbUYuBaWWvAGWRZ2lPAbQI9Lpq9HffT74IAa0IrbtlveXoiypexwGwXMBvHOquVqQ0p cn9tUURhQjpmS8qb5+K+KWF4+1QIjvhSyHXZ03U9D/xDPR4/JR/Qww9TczMe5Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1666906206; a=rsa-sha256; cv=none; b=au0QvYwF6WGf91XvaLzc0vR8JsgTjrxtaWVkAmX98rYmg1RFSK1MjqOsbDpfWN1zRMz6sS 7qtAFAG65AdGNelPVHH0yxdr98JJZBmXV5iNjKJcY87RnjY7JViVlqJTMLQ7jqui7CM8Z2 yMDVhrqk610QSjZE/OKLrGq6E35BcngBjUTQ9GVIDho86E88NLWXjBI/sLycnh5igEi/xb W6aIbEZuDnN+dokP4K73Yp3A+CUwOyRijd1Pmv0vc0UMsKpVCBjNBkgfYkEMxYnBBHJcur f3XBcXBgEXyQJx9PAxwrDZRXPfRJxcMBqyrvO3yJ3aPOWVLvQpnrUOLiW9cXcA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by cognet: URL: https://cgit.FreeBSD.org/src/commit/?id=d78c2cd831d346b94c00c72b5a94a1a4f0dd3e53 commit d78c2cd831d346b94c00c72b5a94a1a4f0dd3e53 Author: Olivier Houchard AuthorDate: 2022-10-27 21:25:59 +0000 Commit: Olivier Houchard CommitDate: 2022-10-27 21:25:56 +0000 arm64: Implement cpu_ptrace(). Add a minimal implementation of cpu_ptrace() for arm64. It is only used to get/set VFP registers for 32bits binaries, as it is apparently what we use there, instead of the MI PT_GETFPREGS/PT_SETFPREGS. PR: 267361 MFC After: 1 week --- sys/arm64/arm64/ptrace_machdep.c | 30 ++++++++++++++++++++++++++++++ sys/arm64/include/ptrace.h | 10 ++++++++++ 2 files changed, 40 insertions(+) diff --git a/sys/arm64/arm64/ptrace_machdep.c b/sys/arm64/arm64/ptrace_machdep.c index 79aff19571c9..01135978b39a 100644 --- a/sys/arm64/arm64/ptrace_machdep.c +++ b/sys/arm64/arm64/ptrace_machdep.c @@ -49,6 +49,36 @@ __FBSDID("$FreeBSD$"); #include +/* Only used to get/set 32bits VFP regs */ +int +cpu_ptrace(struct thread *td, int req, void *arg, int data) +{ +#if defined(VFP) && defined(COMPAT_FREEBSD32) + mcontext32_vfp_t vfp; + int error; + + if (!SV_CURPROC_FLAG(SV_ILP32)) + return (EINVAL); + switch (req) { + case PT_GETVFPREGS32: + get_fpcontext32(td, &vfp); + error = copyout(&vfp, arg, sizeof(vfp)); + break; + case PT_SETVFPREGS32: + error = copyin(arg, &vfp, sizeof(vfp)); + if (error == 0) + set_fpcontext32(td, &vfp); + break; + default: + error = EINVAL; + } + + return (error); +#else + return (EINVAL); +#endif +} + #if defined(VFP) && defined(COMPAT_FREEBSD32) static bool get_arm_vfp(struct regset *rs, struct thread *td, void *buf, size_t *sizep) diff --git a/sys/arm64/include/ptrace.h b/sys/arm64/include/ptrace.h index da23dbe43a4f..0705ee6daab0 100644 --- a/sys/arm64/include/ptrace.h +++ b/sys/arm64/include/ptrace.h @@ -1 +1,11 @@ /* $FreeBSD$ */ + +#ifndef _MACHINE_PTRACE_H_ +#define _MACHINE_PTRACE_H_ + +#define __HAVE_PTRACE_MACHDEP + +#define PT_GETVFPREGS32 (PT_FIRSTMACH + 0) +#define PT_SETVFPREGS32 (PT_FIRSTMACH + 1) + +#endif /* _MACHINE_PTRACE_H_ */