From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32515 invoked by alias); 20 Feb 2008 19:37:31 -0000 Received: (qmail 32119 invoked by uid 367); 20 Feb 2008 19:37:28 -0000 Date: Wed, 20 Feb 2008 19:37:00 -0000 Message-ID: <20080220193728.32104.qmail@sourceware.org> From: cagney@sourceware.org To: frysk-cvs@sourceware.org Subject: [SCM] master: Start of LinuxCoreFactory. X-Git-Refname: refs/heads/master X-Git-Reftype: branch X-Git-Oldrev: c090884f02c5f144dd60c09657f9890aa859fa7f X-Git-Newrev: caffa28dbf44f934103b9f00eeea11e15ce97581 Mailing-List: contact frysk-cvs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: frysk-cvs-owner@sourceware.org Reply-To: frysk@sourceware.org X-SW-Source: 2008-q1/txt/msg00236.txt.bz2 The branch, master has been updated via caffa28dbf44f934103b9f00eeea11e15ce97581 (commit) from c090884f02c5f144dd60c09657f9890aa859fa7f (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email. - Log ----------------------------------------------------------------- commit caffa28dbf44f934103b9f00eeea11e15ce97581 Author: Andrew Cagney Date: Wed Feb 20 14:35:28 2008 -0500 Start of LinuxCoreFactory. frysk-core/frysk/proc/dead/ChangeLog 2008-02-20 Andrew Cagney * LinuxCoreFactory.java: New file. Code from LinuxCoreHost, LinuxCoreProc, and LinuxCoreTask. ----------------------------------------------------------------------- Summary of changes: frysk-core/frysk/proc/dead/ChangeLog | 5 + frysk-core/frysk/proc/dead/LinuxCoreFactory.java | 129 ++++++++++++++++++++++ 2 files changed, 134 insertions(+), 0 deletions(-) create mode 100644 frysk-core/frysk/proc/dead/LinuxCoreFactory.java First 500 lines of diff: diff --git a/frysk-core/frysk/proc/dead/ChangeLog b/frysk-core/frysk/proc/dead/ChangeLog index 687aaa3..e818f2b 100644 --- a/frysk-core/frysk/proc/dead/ChangeLog +++ b/frysk-core/frysk/proc/dead/ChangeLog @@ -1,3 +1,8 @@ +2008-02-20 Andrew Cagney + + * LinuxCoreFactory.java: New file. Code from LinuxCoreHost, + LinuxCoreProc, and LinuxCoreTask. + 2008-02-19 Phil Muldoon * CorefileByteBuffer.java (peek): Delete log calls. diff --git a/frysk-core/frysk/proc/dead/LinuxCoreFactory.java b/frysk-core/frysk/proc/dead/LinuxCoreFactory.java new file mode 100644 index 0000000..1cb6eca --- /dev/null +++ b/frysk-core/frysk/proc/dead/LinuxCoreFactory.java @@ -0,0 +1,129 @@ +// This file is part of the program FRYSK. +// +// Copyright 2007, 2008 Red Hat Inc. +// +// FRYSK is free software; you can redistribute it and/or modify it +// under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// FRYSK is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with FRYSK; if not, write to the Free Software Foundation, +// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. +// +// In addition, as a special exception, Red Hat, Inc. gives You the +// additional right to link the code of FRYSK with code not covered +// under the GNU General Public License ("Non-GPL Code") and to +// distribute linked combinations including the two, subject to the +// limitations in this paragraph. Non-GPL Code permitted under this +// exception must only link to the code of FRYSK through those well +// defined interfaces identified in the file named EXCEPTION found in +// the source code files (the "Approved Interfaces"). The files of +// Non-GPL Code may instantiate templates or use macros or inline +// functions from the Approved Interfaces without causing the +// resulting work to be covered by the GNU General Public +// License. Only Red Hat, Inc. may make changes or additions to the +// list of Approved Interfaces. You must obey the GNU General Public +// License in all respects for all of the FRYSK code and other code +// used in conjunction with FRYSK except the Non-GPL Code covered by +// this exception. If you modify this file, you may extend this +// exception to your version of the file, but you are not obligated to +// do so. If you do not wish to provide this exception without +// modification, you must delete this exception statement from your +// version and license this file solely under the GPL without +// exception. + +package frysk.proc.dead; + +import java.io.File; +import lib.dwfl.Elf; +import lib.dwfl.ElfCommand; +import lib.dwfl.ElfData; +import lib.dwfl.ElfEHeader; +import lib.dwfl.ElfPHeader; +import lib.dwfl.ElfPrpsinfo; +import frysk.proc.Proc; +import frysk.rsl.Log; + +/** + * Data needed to construct a core file; shared between the core Host, + * Proc And task. + */ + +public class LinuxCoreFactory { + private static final Log fine = Log.fine(LinuxCoreFactory.class); + + static Elf core; + static Elf exe; + + /** + * Construct the core file; if the EXE is non-null use it for + * meta-data; otherwise use the executable extracted from the + * core. + * + * All File paths must be canonical. + */ + public static Proc create(File coreFile, File exeFile, + boolean includeMetaData) { + try { + // Open the core file; validate it. + core = new Elf(coreFile, ElfCommand.ELF_C_READ); + ElfEHeader eHeader = core.getEHeader(); + if (eHeader.type != ElfEHeader.PHEADER_ET_CORE) { + throw new RuntimeException("'" + coreFile + + "' is not a corefile."); + } + + // Find the note section; there is only ever one note + // section and it must be present. + ElfData noteData = null; + for (int i = 0; i < eHeader.phnum; i++) { + // Test if pheader is of types notes.. + ElfPHeader pHeader = core.getPHeader(i); + if (pHeader.type == ElfPHeader.PTYPE_NOTE) { + // if so, copy, break an leave. + noteData = core.getRawData(pHeader.offset, + pHeader.filesz); + break; + } + } + if (noteData == null) + throw new RuntimeException("'" + coreFile + + "' is corrupt; no note section"); + + // Extract the pr/ps information from the note. + ElfPrpsinfo prpsInfo = ElfPrpsinfo.decode(noteData); + String[] args = prpsInfo.getPrPsargs().split(" "); + fine.log("args", args); + + if (exeFile == null) { + // Only place to find full path + exe is in the args + // list. Remove ./ if present. + if (args.length > 0) { + if (args[0].startsWith("./")) + exeFile = new File(args[0].substring(2)); + else + exeFile = new File(args[0]); + } else { + exeFile = new File(prpsInfo.getPrFname()); + } + fine.log("exe from core", exeFile); + } else { + fine.log("exe for core", exeFile); + } + if (includeMetaData) + exe = new Elf(exeFile, ElfCommand.ELF_C_READ); + + return null; + } finally { + if (core != null) + core.close(); + if (exe != null) + exe.close(); + } + } +} hooks/post-receive -- frysk system monitor/debugger