Date: Tue, 5 Jun 2012 18:58:05 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r236628 - head/cddl/lib/libdtrace Message-ID: <201206051858.q55Iw5ZD037734@svn.freebsd.org>
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Author: gnn Date: Tue Jun 5 18:58:05 2012 New Revision: 236628 URL: http://svn.freebsd.org/changeset/base/236628 Log: Add DTrace's io.d, which handles tranlsations for file, buffer and device info structures as well as the fds[] array. This is a raw version of the file, unmodified, to be used as a baseline. Added: head/cddl/lib/libdtrace/io.d (contents, props changed) Added: head/cddl/lib/libdtrace/io.d ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/cddl/lib/libdtrace/io.d Tue Jun 5 18:58:05 2012 (r236628) @@ -0,0 +1,220 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + * + * $FreeBSD$ + */ +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#pragma D depends_on module unix +#pragma D depends_on provider io + +inline int B_BUSY = B_BUSY; +#pragma D binding "1.0" B_BUSY +inline int B_DONE = 0x00000200; +#pragma D binding "1.0" B_DONE +inline int B_ERROR = B_ERROR; +#pragma D binding "1.0" B_ERROR +inline int B_PAGEIO = B_PAGEIO; +#pragma D binding "1.0" B_PAGEIO +inline int B_PHYS = B_PHYS; +#pragma D binding "1.0" B_PHYS +inline int B_READ = B_READ; +#pragma D binding "1.0" B_READ +inline int B_WRITE = B_WRITE; +#pragma D binding "1.0" B_WRITE +inline int B_ASYNC = 0x00000004; +#pragma D binding "1.0" B_ASYNC + +typedef struct bufinfo { + int b_flags; /* buffer status */ + size_t b_bcount; /* number of bytes */ + caddr_t b_addr; /* buffer address */ + uint64_t b_lblkno; /* block # on device */ + uint64_t b_blkno; /* expanded block # on device */ + size_t b_resid; /* # of bytes not transferred */ + size_t b_bufsize; /* size of allocated buffer */ + caddr_t b_iodone; /* I/O completion routine */ + int b_error; /* expanded error field */ + dev_t b_edev; /* extended device */ +} bufinfo_t; + +#pragma D binding "1.0" translator +translator bufinfo_t < struct buf *B > { + b_flags = B->b_flags; + b_addr = B->b_un.b_addr; + b_bcount = B->b_bcount; + b_lblkno = B->_b_blkno._f; + b_blkno = sizeof (long) == 8 ? B->_b_blkno._f : B->_b_blkno._p._l; + b_resid = B->b_resid; + b_bufsize = B->b_bufsize; + b_iodone = (caddr_t)B->b_iodone; + b_error = B->b_error; + b_edev = B->b_edev; +}; + +typedef struct devinfo { + int dev_major; /* major number */ + int dev_minor; /* minor number */ + int dev_instance; /* instance number */ + string dev_name; /* name of device */ + string dev_statname; /* name of device + instance/minor */ + string dev_pathname; /* pathname of device */ +} devinfo_t; + +#pragma D binding "1.0" translator +translator devinfo_t < struct buf *B > { + dev_major = B->b_dip != NULL ? getmajor(B->b_edev) : + getmajor(B->b_file->v_vfsp->vfs_dev); + dev_minor = B->b_dip != NULL ? getminor(B->b_edev) : + getminor(B->b_file->v_vfsp->vfs_dev); + dev_instance = B->b_dip == NULL ? + getminor(B->b_file->v_vfsp->vfs_dev) : + ((struct dev_info *)B->b_dip)->devi_instance; + dev_name = B->b_dip == NULL ? "nfs" : + stringof(`devnamesp[getmajor(B->b_edev)].dn_name); + dev_statname = strjoin(B->b_dip == NULL ? "nfs" : + stringof(`devnamesp[getmajor(B->b_edev)].dn_name), + lltostr(B->b_dip == NULL ? getminor(B->b_file->v_vfsp->vfs_dev) : + ((struct dev_info *)B->b_dip)->devi_instance == 0 && + ((struct dev_info *)B->b_dip)->devi_parent != NULL && + ((struct dev_info *)B->b_dip)->devi_parent->devi_node_name == + "pseudo" ? getminor(B->b_edev) : + ((struct dev_info *)B->b_dip)->devi_instance)); + dev_pathname = B->b_dip == NULL ? "<nfs>" : + ddi_pathname(B->b_dip, getminor(B->b_edev)); +}; + +typedef struct fileinfo { + string fi_name; /* name (basename of fi_pathname) */ + string fi_dirname; /* directory (dirname of fi_pathname) */ + string fi_pathname; /* full pathname */ + offset_t fi_offset; /* offset within file */ + string fi_fs; /* filesystem */ + string fi_mount; /* mount point of file system */ + int fi_oflags; /* open(2) flags for file descriptor */ +} fileinfo_t; + +#pragma D binding "1.0" translator +translator fileinfo_t < struct buf *B > { + fi_name = B->b_file == NULL ? "<none>" : + B->b_file->v_path == NULL ? "<unknown>" : + basename(cleanpath(B->b_file->v_path)); + fi_dirname = B->b_file == NULL ? "<none>" : + B->b_file->v_path == NULL ? "<unknown>" : + dirname(cleanpath(B->b_file->v_path)); + fi_pathname = B->b_file == NULL ? "<none>" : + B->b_file->v_path == NULL ? "<unknown>" : + cleanpath(B->b_file->v_path); + fi_offset = B->b_offset; + fi_fs = B->b_file == NULL ? "<none>" : + stringof(B->b_file->v_op->vnop_name); + fi_mount = B->b_file == NULL ? "<none>" : + B->b_file->v_vfsp->vfs_vnodecovered == NULL ? "/" : + B->b_file->v_vfsp->vfs_vnodecovered->v_path == NULL ? "<unknown>" : + cleanpath(B->b_file->v_vfsp->vfs_vnodecovered->v_path); + fi_oflags = 0; +}; + +/* + * The following inline constants can be used to examine fi_oflags when using + * the fds[] array or a translated fileinfo_t. Note that the various open + * flags behave as a bit-field *except* for O_RDONLY, O_WRONLY, and O_RDWR. + * To test the open mode, you write code similar to that used with the fcntl(2) + * F_GET[X]FL command, such as: if ((fi_oflags & O_ACCMODE) == O_WRONLY). + */ +inline int O_ACCMODE = 0x0003; +#pragma D binding "1.1" O_ACCMODE + +inline int O_RDONLY = 0x0000; +#pragma D binding "1.1" O_RDONLY +inline int O_WRONLY = 0x0001; +#pragma D binding "1.1" O_WRONLY +inline int O_RDWR = 0x0002; +#pragma D binding "1.1" O_RDWR + +inline int O_APPEND = 0x0008; +#pragma D binding "1.1" O_APPEND +inline int O_CREAT = 0x0200; +#pragma D binding "1.1" O_CREAT +inline int O_DSYNC = O_DSYNC; +#pragma D binding "1.1" O_DSYNC +inline int O_EXCL = 0x0800; +#pragma D binding "1.1" O_EXCL +inline int O_LARGEFILE = O_LARGEFILE; +#pragma D binding "1.1" O_LARGEFILE +inline int O_NOCTTY = 0x8000; +#pragma D binding "1.1" O_NOCTTY +inline int O_NONBLOCK = 0x0004; +#pragma D binding "1.1" O_NONBLOCK +inline int O_NDELAY = 0x0004; +#pragma D binding "1.1" O_NDELAY +inline int O_RSYNC = O_RSYNC; +#pragma D binding "1.1" O_RSYNC +inline int O_SYNC = 0x0080; +#pragma D binding "1.1" O_SYNC +inline int O_TRUNC = 0x0400; +#pragma D binding "1.1" O_TRUNC +inline int O_XATTR = O_XATTR; +#pragma D binding "1.1" O_XATTR + +#pragma D binding "1.1" translator +translator fileinfo_t < struct file *F > { + fi_name = F == NULL ? "<none>" : + F->f_vnode->v_path == NULL ? "<unknown>" : + basename(cleanpath(F->f_vnode->v_path)); + fi_dirname = F == NULL ? "<none>" : + F->f_vnode->v_path == NULL ? "<unknown>" : + dirname(cleanpath(F->f_vnode->v_path)); + fi_pathname = F == NULL ? "<none>" : + F->f_vnode->v_path == NULL ? "<unknown>" : + cleanpath(F->f_vnode->v_path); + fi_offset = F == NULL ? 0 : F->f_offset; + fi_fs = F == NULL ? "<none>" : stringof(F->f_vnode->v_op->vnop_name); + fi_mount = F == NULL ? "<none>" : + F->f_vnode->v_vfsp->vfs_vnodecovered == NULL ? "/" : + F->f_vnode->v_vfsp->vfs_vnodecovered->v_path == NULL ? "<unknown>" : + cleanpath(F->f_vnode->v_vfsp->vfs_vnodecovered->v_path); + fi_oflags = F == NULL ? 0 : F->f_flag + (int)FOPEN; +}; + +inline fileinfo_t fds[int fd] = xlate <fileinfo_t> ( + fd >= 0 && fd < curthread->t_procp->p_user.u_finfo.fi_nfiles ? + curthread->t_procp->p_user.u_finfo.fi_list[fd].uf_file : NULL); + +#pragma D attributes Stable/Stable/Common fds +#pragma D binding "1.1" fds + +#pragma D binding "1.2" translator +translator fileinfo_t < struct vnode *V > { + fi_name = V->v_path == NULL ? "<unknown>" : + basename(cleanpath(V->v_path)); + fi_dirname = V->v_path == NULL ? "<unknown>" : + dirname(cleanpath(V->v_path)); + fi_pathname = V->v_path == NULL ? "<unknown>" : cleanpath(V->v_path); + fi_fs = stringof(V->v_op->vnop_name); + fi_mount = V->v_vfsp->vfs_vnodecovered == NULL ? "/" : + V->v_vfsp->vfs_vnodecovered->v_path == NULL ? "<unknown>" : + cleanpath(V->v_vfsp->vfs_vnodecovered->v_path); +};
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