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* [SCM]  master: Create an "int pid" free and logged frysk.sys.ptrace package.
@ 2008-02-12 16:11 cagney
  0 siblings, 0 replies; only message in thread
From: cagney @ 2008-02-12 16:11 UTC (permalink / raw)
  To: frysk-cvs

The branch, master has been updated
       via  4b59e4b5813d22018d7bb5e75d484826f5b59f79 (commit)
      from  d25bf85036ec9bd992ee2f356a614d4bf4e051ff (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email.

- Log -----------------------------------------------------------------
commit 4b59e4b5813d22018d7bb5e75d484826f5b59f79
Author: Andrew Cagney <cagney@redhat.com>
Date:   Tue Feb 12 11:05:08 2008 -0500

    Create an "int pid" free and logged frysk.sys.ptrace package.
    
    frysk-sys/frysk/rsl/ChangeLog
    2008-02-12  Andrew Cagney  <cagney@redhat.com>
    
    	* Log.java: Add more log methods.
    
    frysk-sys/frysk/sys/ptrace/Changelog
    2008-02-12  Andrew Cagney  <cagney@redhat.com>
    
    	* TestAddressSpace.java: Extract from frysk.sys.TestPtrace.
    	* TestPtrace.java: Extract from frysk.sys.TestPtrace.
    	* AddressSpace.java: Extract from frysk.sys.Ptrace.
    	* RegisterSet.java: Extract from frysk.sys.Ptrace.
    	* Ptrace.java: Extract from frysk.sys.Ptrace.
    	* cni/Ptrace.hxx: New.
    	* cni/AddressSpace.cxx: Extract from frysk/sys/cni/Ptrace.cxx.
    	* cni/RegisterSet.cxx: Extract from frysk/sys/cni/Ptrace.cxx.
    	* cni/Ptrace.cxx: Extract from frysk/sys/cni/Ptrace.cxx.

-----------------------------------------------------------------------

Summary of changes:
 frysk-sys/frysk/rsl/ChangeLog                      |    4 +
 frysk-sys/frysk/rsl/Log.java                       |   38 +++
 frysk-sys/frysk/sys/ptrace/AddressSpace.java       |  160 +++++++++++
 frysk-sys/frysk/sys/ptrace/ChangeLog               |   18 ++
 frysk-sys/frysk/sys/ptrace/Ptrace.java             |  148 ++++++++++
 .../{ChildFactory.java => ptrace/RegisterSet.java} |   71 +++--
 .../TestAddressSpace.java}                         |  285 ++++++--------------
 frysk-sys/frysk/sys/ptrace/TestPtrace.java         |  152 +++++++++++
 frysk-sys/frysk/sys/ptrace/cni/AddressSpace.cxx    |  189 +++++++++++++
 frysk-sys/frysk/sys/ptrace/cni/Ptrace.cxx          |  153 +++++++++++
 .../frysk/sys/ptrace/cni/Ptrace.hxx                |   10 +-
 .../cni/RegisterSet.cxx}                           |   79 +++---
 frysk-sys/frysk/sys/ptrace/package.html            |    7 +
 13 files changed, 1048 insertions(+), 266 deletions(-)
 create mode 100644 frysk-sys/frysk/sys/ptrace/AddressSpace.java
 create mode 100644 frysk-sys/frysk/sys/ptrace/ChangeLog
 create mode 100644 frysk-sys/frysk/sys/ptrace/Ptrace.java
 copy frysk-sys/frysk/sys/{ChildFactory.java => ptrace/RegisterSet.java} (63%)
 copy frysk-sys/frysk/sys/{TestPtrace.java => ptrace/TestAddressSpace.java} (57%)
 create mode 100644 frysk-sys/frysk/sys/ptrace/TestPtrace.java
 create mode 100644 frysk-sys/frysk/sys/ptrace/cni/AddressSpace.cxx
 create mode 100644 frysk-sys/frysk/sys/ptrace/cni/Ptrace.cxx
 copy frysk-core/prog/terminated/infloop.c => frysk-sys/frysk/sys/ptrace/cni/Ptrace.hxx (96%)
 copy frysk-sys/frysk/sys/{cni/ChildFactory.cxx => ptrace/cni/RegisterSet.cxx} (64%)
 create mode 100644 frysk-sys/frysk/sys/ptrace/package.html

First 500 lines of diff:
diff --git a/frysk-sys/frysk/rsl/ChangeLog b/frysk-sys/frysk/rsl/ChangeLog
index a2997cf..204f238 100644
--- a/frysk-sys/frysk/rsl/ChangeLog
+++ b/frysk-sys/frysk/rsl/ChangeLog
@@ -1,3 +1,7 @@
+2008-02-12  Andrew Cagney  <cagney@redhat.com>
+
+	* Log.java: Add more log methods.
+
 2008-02-11  Andrew Cagney  <cagney@redhat.com>
 
 	* Log.java (prefixTime()): Print time in DAY HH:MM:SS.mmm format;
diff --git a/frysk-sys/frysk/rsl/Log.java b/frysk-sys/frysk/rsl/Log.java
index 1ddfa73..dd0bdf4 100644
--- a/frysk-sys/frysk/rsl/Log.java
+++ b/frysk-sys/frysk/rsl/Log.java
@@ -363,6 +363,11 @@ public final class Log {
 	    return;
 	prefix(); print(p1); print(p2); print(p3); suffix();
     }
+    public void log(String p1, Object p2, String p3, long p4) {
+	if (!logging)
+	    return;
+	prefix(); print(p1); print(p2); print(p3); print(p4); suffix();
+    }
     public void log(String p1, Object p2, String p3, Object p4) {
 	if (!logging)
 	    return;
@@ -400,6 +405,11 @@ public final class Log {
 	    return;
 	prefix(self); print(p1); print(p2); suffix();
     }
+    public void log(Object self, String p1, Object p2, String p3) {
+	if (!logging)
+	    return;
+	prefix(self); print(p1); print(p2); print(p3); suffix();
+    }
     public void log(Object self, String p1, int p2, String p3, char p4) {
 	if (!logging)
 	    return;
@@ -415,9 +425,37 @@ public final class Log {
 	    return;
 	prefix(self); print(p1); print(p2); print(p3); print(p4); suffix();
     }
+    public void log(Object self, String p1, Object p2, String p3, long p4, String p5) {
+	if (!logging)
+	    return;
+	prefix(self); print(p1); print(p2); print(p3); print(p4); print(p5); suffix();
+    }
+
+    // 6 parameters
+    public void log(Object self, String p1, Object p2, String p3, long p4, String p5, long p6) {
+	if (!logging)
+	    return;
+	prefix(self); print(p1); print(p2); print(p3); print(p4); print(p5); print(p6); suffix();
+    }
     public void log(Object self, String p1, Object p2, String p3, Object p4, String p5, Object p6) {
 	if (!logging)
 	    return;
 	prefix(self); print(p1); print(p2); print(p3); print(p4); print(p5); print(p6); suffix();
     }
+
+    // 9 parameters
+    public void log(Object self, String p1, Object p2, String p3, long p4, String p5, int p6, String p7, int p8, String p9) {
+	if (!logging)
+	    return;
+	prefix(self); print(p1); print(p2); print(p3); print(p4); print(p5); print(p6); print(p7); print(p8); print(p9); suffix();
+    }
+    public void log(Object self, String p1, Object p2, String p3, long p4, String p5, long p6, String p7, int p8, String p9) {
+	if (!logging)
+	    return;
+	prefix(self); print(p1); print(p2); print(p3); print(p4); print(p5); print(p6); print(p7); print(p8); print(p9); suffix();
+    }
+
+    // 11 parameters
+    public void log(Object self, String p1, Object p2, String p3, long p4, String p5, Object p6, String p7, int p8, String p9, int p10, String p11) {
+    }
 }
diff --git a/frysk-sys/frysk/sys/ptrace/AddressSpace.java b/frysk-sys/frysk/sys/ptrace/AddressSpace.java
new file mode 100644
index 0000000..499009e
--- /dev/null
+++ b/frysk-sys/frysk/sys/ptrace/AddressSpace.java
@@ -0,0 +1,160 @@
+// This file is part of the program FRYSK.
+// 
+// Copyright 2005, 2006, 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.sys.ptrace;
+
+import frysk.rsl.Log;
+import frysk.sys.ProcessIdentifier;
+
+/**
+ * A ptrace address space, that can be peeked or poked a "word" at
+ * a time.
+ */
+public class AddressSpace {
+    private static final Log fine = Log.fine(AddressSpace.class);
+
+    private final long length;
+    private final String name;
+    private final int ptPeek;
+    private final int ptPoke;
+
+    AddressSpace(long length, String name, int ptPeek, int ptPoke) {
+	this.name = super.toString() + ":" + name;
+	this.length = length;
+	this.ptPeek = ptPeek;
+	this.ptPoke = ptPoke;
+    }
+
+    public String toString() {
+	return name;
+    }
+    public long length() {
+	return length;
+    }
+
+    /**
+     * Fetch a byte at ADDR of process PID.
+     */
+    public int peek(ProcessIdentifier pid, long addr) {
+	fine.log(this, "peek", pid, "addr", addr, "...");
+	int ret = peek(pid.intValue(), addr);
+	fine.log("... peek", pid, "returns", ret);
+	return ret;
+    }
+    private native int peek (int pid, long addr);
+
+    /**
+     * Store the byte at ADDR of process PID.
+     */
+    public void poke(ProcessIdentifier pid, long addr, int data) {
+	fine.log(this, "poke", pid, "addr", addr, "data", (long) data);
+	poke(pid.intValue(), addr, data);
+    }
+    private native void poke(int pid, long addr, int data);
+
+    /**
+     * Transfer data between the local BYTES array and process PID.
+     * Up to LENGTH bytes are copied, starting at OFFSET in the BYTES
+     * array.
+     *
+     * This is a target oriented transfer; hence LENGTH as an address
+     * sized quantity is a long..
+     */
+    public int transfer(ProcessIdentifier pid, long addr, long length,
+			byte[] bytes, int offset, boolean write) {
+	fine.log(this, "transfer", pid, "addr", addr, "length", length,
+		 "offset", offset, write ? "write ..." : "read ...");
+	int size;
+	if (offset >= 0 && length >= 0) {
+	    if (offset + length > bytes.length)
+		size = bytes.length - offset;
+	    else
+		size = (int) length;
+	} else {
+	    size = -1; // triggers exception
+	}
+	transfer(write ? ptPoke : ptPeek, pid.intValue(), addr,
+		 bytes, offset, size);
+	return size;
+    }
+
+    /**
+     * Fetch up-to LENGTH bytes starting at ADDR of process PID,
+     * store them in BYTES, starting at OFFSET.
+     */
+    public void peek(ProcessIdentifier pid, long addr,
+		     byte[] bytes, int offset, int length) {
+	transfer(pid, addr, bytes, offset, length, false);
+    }
+
+    /**
+     * Store up-to LENGTH bytes starting at ADDR of process PID,
+     * get values from BYTES, starting at OFFSET.
+     */
+    public void poke(ProcessIdentifier pid, long addr,
+		     byte[] bytes, int offset, int length) {
+	transfer(pid, addr, bytes, offset, length, true);
+    }
+    
+    /**
+     * Transfer data between the local BYTES array and process PID.
+     * Locally the data starts at OFFSET and goes for LENGTH bytes.
+     *
+     * This is a host oriented transfer; hence LENGTH is an int.
+     */
+    public void transfer(ProcessIdentifier pid, long addr,
+			 byte[] bytes, int offset, int length,
+			 boolean write) {
+	fine.log(this, "transfer", pid, "addr", addr,
+		 "offset", offset, "length", length,
+		 write ? "write ..." : "read ...");
+	transfer(write ? ptPoke : ptPeek, pid.intValue(), addr,
+		 bytes, offset, length);
+    }
+    private native final void transfer(int op, int pid, long addr,
+				       byte[] bytes, int offset, int length);
+
+    private static native AddressSpace text();
+    private static native AddressSpace data();
+    private static native AddressSpace usr();
+
+    public static final AddressSpace TEXT = text();
+    public static final AddressSpace DATA = data();
+    public static final AddressSpace USR = usr();
+}
diff --git a/frysk-sys/frysk/sys/ptrace/ChangeLog b/frysk-sys/frysk/sys/ptrace/ChangeLog
new file mode 100644
index 0000000..17228ee
--- /dev/null
+++ b/frysk-sys/frysk/sys/ptrace/ChangeLog
@@ -0,0 +1,18 @@
+2008-02-12  Andrew Cagney  <cagney@redhat.com>
+
+	* TestAddressSpace.java: Extract from frysk.sys.TestPtrace.
+	* TestPtrace.java: Extract from frysk.sys.TestPtrace.
+	* AddressSpace.java: Extract from frysk.sys.Ptrace.
+	* RegisterSet.java: Extract from frysk.sys.Ptrace.
+	* Ptrace.java: Extract from frysk.sys.Ptrace.
+	* cni/Ptrace.hxx: New.
+	* cni/AddressSpace.cxx: Extract from frysk/sys/cni/Ptrace.cxx.
+	* cni/RegisterSet.cxx: Extract from frysk/sys/cni/Ptrace.cxx.
+	* cni/Ptrace.cxx: Extract from frysk/sys/cni/Ptrace.cxx.
+\f
+Local Variables:
+mode: change-log
+left-margin: 8
+fill-column: 74
+version-control: never
+End:
diff --git a/frysk-sys/frysk/sys/ptrace/Ptrace.java b/frysk-sys/frysk/sys/ptrace/Ptrace.java
new file mode 100644
index 0000000..aa5b3b8
--- /dev/null
+++ b/frysk-sys/frysk/sys/ptrace/Ptrace.java
@@ -0,0 +1,148 @@
+// This file is part of the program FRYSK.
+// 
+// Copyright 2005, 2006, 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.sys.ptrace;
+
+import frysk.rsl.Log;
+import frysk.sys.ProcessIdentifier;
+import frysk.sys.Signal;
+
+/**
+ * Trace a process.
+ */
+
+public class Ptrace {
+    private static final Log fine = Log.fine(Ptrace.class);
+
+    /**
+     * Attach to the process specified by PID.
+     */
+    public static void attach(ProcessIdentifier pid) {
+	fine.log("attach", pid);
+	attach(pid.intValue());
+    }
+    private static native void attach(int pid);
+
+    /**
+     * Detach from the process specified by PID.
+     */
+    public static void detach(ProcessIdentifier pid, Signal signal) {
+	fine.log("detach", pid, "signal", signal);
+	detach(pid.intValue(), signal.intValue());
+    }
+    private static native void detach(int pid, int sig);
+
+    /**
+     * Single-step (instruction step) the process specified by PID, if
+     * SIG is non-zero, deliver the signal.
+     */
+    public static void singleStep(ProcessIdentifier pid, Signal signal) {
+	fine.log("signleStep", pid, "signal", signal);
+	singleStep(pid.intValue(), signal.intValue());
+    }
+    private static native void singleStep(int pid, int sig);
+
+    /**
+     * Continue the process specified by PID, if SIG is non-zero,
+     * deliver the signal.
+     */
+    public static void cont(ProcessIdentifier pid, Signal signal) {
+	fine.log("cont", pid, "signal", signal);
+	cont(pid.intValue(), signal.intValue());
+    }
+    private static native void cont(int pid, int signal);
+
+    /**
+     * Continue the process specified by PID, stopping when there is a
+     * system-call; if SIG is non-zero deliver the signal.
+     */
+    public static void sysCall(ProcessIdentifier pid, Signal signal) {
+	fine.log("sysCall", pid, "signal", signal);
+	sysCall(pid.intValue(), signal.intValue());
+    }
+    private static native void sysCall(int pid, int sig);
+
+    /**
+     * Fetch the auxilary information associated with PID's last WAIT
+     * event.
+     */ 
+    public static long getEventMsg(ProcessIdentifier pid) {
+	fine.log("getEventMsg", pid, "...");
+	long ret = getEventMsg(pid.intValue());
+	fine.log("... getEventMsg", pid, "returns", ret);
+	return ret;
+    }
+    private static native long getEventMsg(int pid);
+
+    /**
+     * Set PID's trace options.  OPTIONS is formed by or'ing the
+     * values returned by the option* methods below.
+     */
+    public static void setOptions(ProcessIdentifier pid, long options) {
+	fine.log("setOptions", pid, "options", options);
+	setOptions(pid.intValue(), options);
+    }
+    private static native void setOptions (int pid, long options);
+
+    /**
+     * Return the bitmask for enabling clone tracing.
+     */
+    public static final long OPTION_CLONE = optionTraceClone();
+    private static native long optionTraceClone();
+    /**
+     * Return the bitmask for enabling fork tracing.
+     */
+    public static final long OPTION_FORK = optionTraceFork();
+    private static native long optionTraceFork();
+    /**
+     * Return the bitmask for enabling exit tracing.
+     */
+    public static final long OPTION_EXIT = optionTraceExit();
+    private static native long optionTraceExit();
+    /**
+     * Return the bitmask for enabling SYSGOOD(?} tracing.
+     */ 
+    public static final long OPTION_SYSGOOD = optionTraceSysgood();
+    private static native long optionTraceSysgood();
+    /**
+     * Return the bitmask for enabling exec tracing.
+     */
+    public static final long OPTION_EXEC = optionTraceExec();
+    private static native long optionTraceExec();
+}
diff --git a/frysk-sys/frysk/sys/ChildFactory.java b/frysk-sys/frysk/sys/ptrace/RegisterSet.java
similarity index 63%
copy from frysk-sys/frysk/sys/ChildFactory.java
copy to frysk-sys/frysk/sys/ptrace/RegisterSet.java
index 8be6ea1..62a452c 100644
--- a/frysk-sys/frysk/sys/ChildFactory.java
+++ b/frysk-sys/frysk/sys/ptrace/RegisterSet.java
@@ -1,11 +1,11 @@
 // This file is part of the program FRYSK.
-//
+// 
 // Copyright 2005, 2006, 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
@@ -37,36 +37,51 @@
 // version and license this file solely under the GPL without
 // exception.
 
-package frysk.sys;
+package frysk.sys.ptrace;
+
+import frysk.rsl.Log;
+import frysk.sys.ProcessIdentifier;
+
+/**
+ * A ptrace register set that is transfered to/from PID in bulk.
+ */
+public class RegisterSet {
+    private static final Log fine = Log.fine(RegisterSet.class);
+
+    private final int ptLength;
+    private final int ptGet;
+    private final int ptSet;
+
+    RegisterSet(int ptLength, int ptGet, int ptSet) {
+	this.ptLength = ptLength;
+	this.ptGet = ptGet;
+	this.ptSet = ptSet;
+    }
 
-public class ChildFactory {
-    /**
-     * Create a child process (direct decendant of this process) that
-     * redirects its I/O to REDIRECT, and executes EXEC.
-     *
-     * Private.
-     */
-    private static native ProcessIdentifier child(Redirect redirect,
-						  Execute exec);
     /**
-     * Create a child wired to IO redirect, running exec.
-     *
-     * Package private.
+     * Return the size of the register set in bytes.
      */
-    public static ProcessIdentifier create(Redirect redirect, Execute exec) {
-	return child(redirect, exec);
+    public int length() {
+	return ptLength;
     }
+
     /**
-     * Create a child wired to nothing; STDIN is closed, STDOUT/ERROR
-     * are the same as for this process.
+     * Fetch PID's register set into DATA.
      */
-    public static ProcessIdentifier create(Execute exec) {
-	return create(new Redirect() {
-		protected void reopen() {
-		    FileDescriptor.in.close ();


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