mirror of
https://github.com/eclipse-cdt/cdt
synced 2025-06-07 17:56:01 +02:00
Complete rewrite to not use the gdb/mi variable object
but rather the -data-list-register-xxx calls.
This commit is contained in:
Alain Magloire
parent
73a428b3f5
commit
e206d3b10f
2 changed files with 407 additions and 4 deletions
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@ -5,14 +5,291 @@
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*/
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package org.eclipse.cdt.debug.mi.core.cdi;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import org.eclipse.cdt.debug.core.cdi.CDIException;
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import org.eclipse.cdt.debug.core.cdi.ICDIRegisterObject;
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import org.eclipse.cdt.debug.core.cdi.model.ICDIRegister;
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import org.eclipse.cdt.debug.mi.core.output.MIVar;
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import org.eclipse.cdt.debug.core.cdi.model.ICDIValue;
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import org.eclipse.cdt.debug.core.cdi.model.ICDIVariable;
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import org.eclipse.cdt.debug.mi.core.MIException;
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import org.eclipse.cdt.debug.mi.core.MIFormat;
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import org.eclipse.cdt.debug.mi.core.MISession;
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import org.eclipse.cdt.debug.mi.core.command.CommandFactory;
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import org.eclipse.cdt.debug.mi.core.command.MIDataListRegisterValues;
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import org.eclipse.cdt.debug.mi.core.output.MIDataListRegisterValuesInfo;
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import org.eclipse.cdt.debug.mi.core.output.MIRegisterValue;
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/**
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*/
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public class Register extends Variable implements ICDIRegister {
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public class Register extends CObject implements ICDIRegister, ICDIValue {
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public Register(StackFrame frame, String name, MIVar var) {
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super(frame, name, var);
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RegisterObject regObject;
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int format = MIFormat.HEXADECIMAL;
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Register parent;
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String lastname;
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/**
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* A container class to hold the values of the registers and sub values
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* for example on x86, xmm0 register is consider to be a struct
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* gdb/mi -data-list-register-values returns the value like this
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* value="{f = {0x0, 0x0, 0x0, 0x0}}"
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* we'll parse() it and change it to:
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* Argument[0] = { "xmm0", "{f = {0x0, 0x0, 0x0, 0x0}}"
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* Argument[1] = { "xmm0.f", "{0x0, 0x0, 0x0, 0x0}"}
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* Argument[2] = { "xmm0.f.0", "0x0"}
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* Argument[3] = { "xmm0.f.1", "0x0"}
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* Argument[4] = { "xmm0.f.2", "0x0"}
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* Argument[5] = { "xmm0.f.3", "0x0"}
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* see @parse()
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*/
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class Argument {
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String name;
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String val;
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Argument(String n, String v) {
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name = n;
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val = v;
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}
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String getKey() {
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return name;
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}
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String getValue() {
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return val;
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}
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}
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public Register(CTarget target, ICDIRegisterObject r) {
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super(target);
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parent = null;
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lastname = r.getName();
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regObject = (RegisterObject)r;
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}
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public Register(Register p, String n) {
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super(p.getCTarget());
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parent = p;
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lastname = n;
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}
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/**
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* return the MI regno.
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*/
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public int getId() {
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return regObject.getId();
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}
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/**
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* Returns a Unique name separated by '.' to describe the path
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* for example xmm0.f.0
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*/
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public String getUniqName() {
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String n = "";
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if (parent != null) {
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n = parent.getUniqName() + "." + getLastName();
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} else {
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n = getLastName();
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}
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return n;
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}
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/**
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* Returns the name of the register, for example xmm0.
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*/
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public String getBaseName() {
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String base = "";
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if (parent != null) {
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base = parent.getBaseName();
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} else {
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base = getLastName();
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}
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return base;
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}
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/**
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* Returns the current name for xmm0.f the last name is "f".
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*/
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public String getLastName() {
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return lastname;
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#getName()
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*/
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public String getName() throws CDIException {
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return getLastName();
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#getTypeName()
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*/
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public String getTypeName() throws CDIException {
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String v = getValueString();
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if (v.startsWith("{")) {
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// Use ptype?
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return "struct ";
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}
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return "int";
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#getValue()
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*/
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public ICDIValue getValue() throws CDIException {
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return this;
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIValue#getValueString()
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*/
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public String getValueString() throws CDIException {
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if (parent == null) {
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MISession mi = getCTarget().getCSession().getMISession();
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CommandFactory factory = mi.getCommandFactory();
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int[] regno = new int[]{((RegisterObject)regObject).getId()};
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MIDataListRegisterValues registers =
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factory.createMIDataListRegisterValues(format, regno);
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try {
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mi.postCommand(registers);
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MIDataListRegisterValuesInfo info =
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registers.getMIDataListRegisterValuesInfo();
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if (info == null) {
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throw new CDIException("No answer");
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}
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MIRegisterValue[] regValues = info.getMIRegisterValues();
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// We only ask for one. But do the right thing
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for (int i = 0; i < regValues.length; i++) {
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if (regValues[i].getNumber() == regno[i]) {
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return regValues[i].getValue();
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}
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}
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} catch (MIException e) {
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throw new CDIException(e.getMessage());
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}
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} else {
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String u = getUniqName();
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String v = parent.getValueString();
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Argument[] args = parse(parent.getUniqName(), v);
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for (int i = 0; i < args.length; i++) {
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if (u.equals(args[i].getKey())) {
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return args[i].getValue();
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}
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}
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}
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return "";
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#isEditable()
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*/
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public boolean isEditable() throws CDIException {
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return false;
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#setValue(ICDIValue)
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*/
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public void setValue(ICDIValue val) throws CDIException {
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setValue(val.getValueString());
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#setValue(String)
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*/
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public void setValue(String expression) throws CDIException {
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throw new CDIException("Register setting is not supported");
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIVariable#setFormat()
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*/
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public void setFormat(int format) throws CDIException {
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format = Format.toMIFormat(format);
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIValue#getChildrenNumber()
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*/
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public int getChildrenNumber() throws CDIException {
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return getVariables().length;
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIValue#getVariables()
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*/
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public ICDIVariable[] getVariables() throws CDIException {
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List aList = new ArrayList(1);
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String v = getValueString();
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Argument[] args = parse(getUniqName(), v);
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/* The idea here s to get the first level
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*
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* Argument[0] = { "xmm0", "{f = {0x0, 0x0, 0x0, 0x0}}"
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* Argument[1] = { "xmm0.f", "{0x0, 0x0, 0x0, 0x0}"}
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* Argument[2] = { "xmm0.f.0", "0x0"}
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* Argument[3] = { "xmm0.f.1", "0x0"}
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* Argument[4] = { "xmm0.f.2", "0x0"}
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* Argument[5] = { "xmm0.f.3", "0x0"}
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*
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* For example the children or xmm0.f are xmm0.f.{0,1,2,3,}
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*
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*/
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for (int i = 0; i < args.length; i++) {
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String n = args[i].getKey();
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String u = getUniqName();
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if (n.startsWith(u) && n.length() > u.length()) {
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String p = n.substring(u.length());
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StringTokenizer st = new StringTokenizer(p, ".");
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if (st.countTokens() == 1) {
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aList.add(new Register(this, (String)st.nextElement()));
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}
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}
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}
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return (ICDIVariable[])aList.toArray(new ICDIVariable[0]);
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDIValue#hasChildren()
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*/
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public boolean hasChildren() throws CDIException {
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return getChildrenNumber() > 0;
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}
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/**
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* We are parsing this:
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* "{f = {0x0, 0x0, 0x0, 0x0}}"
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* into:
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* Argument[0] = { "xmm0", "{f = {0x0, 0x0, 0x0, 0x0}}"
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* Argument[1] = { "xmm0.f", "{0x0, 0x0, 0x0, 0x0}"}
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* Argument[2] = { "xmm0.f.0", "0x0"}
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* Argument[3] = { "xmm0.f.1", "0x0"}
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* Argument[4] = { "xmm0.f.2", "0x0"}
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* Argument[5] = { "xmm0.f.3", "0x0"}
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*/
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Argument[] parse(String base, String v) throws CDIException {
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List aList = new ArrayList(1);
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StringBuffer sb = new StringBuffer(base);
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aList.add(new Argument(sb.toString(), v.trim()));
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while (v.startsWith("{")) {
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int idx;
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v = v.substring(1);
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if (v.endsWith("}")) {
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idx = v.lastIndexOf('}');
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v = v.substring(0, idx);
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}
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idx = v.indexOf('=');
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if (idx != -1) {
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String n = v.substring(0, idx).trim();
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sb.append('.').append(n);
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v = v.substring(idx + 1).trim();
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aList.add(new Argument(sb.toString(), v));
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} else {
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StringTokenizer st = new StringTokenizer(v, ",");
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for (int i = 0; st.hasMoreElements(); i++) {
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aList.add(new Argument(sb.toString() + "." + Integer.toString(i), ((String)st.nextElement()).trim()));
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}
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}
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}
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return (Argument[])aList.toArray(new Argument[0]);
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}
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}
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@ -0,0 +1,126 @@
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/*
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*(c) Copyright QNX Software Systems Ltd. 2002.
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* All Rights Reserved.
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*
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*/
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package org.eclipse.cdt.debug.mi.core.cdi;
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import java.util.ArrayList;
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import java.util.List;
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import org.eclipse.cdt.debug.core.cdi.CDIException;
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import org.eclipse.cdt.debug.core.cdi.ICDIRegisterObject;
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import org.eclipse.cdt.debug.mi.core.MIException;
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import org.eclipse.cdt.debug.mi.core.MISession;
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import org.eclipse.cdt.debug.mi.core.command.CommandFactory;
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import org.eclipse.cdt.debug.mi.core.command.MIDataListChangedRegisters;
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import org.eclipse.cdt.debug.mi.core.command.MIDataListRegisterNames;
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import org.eclipse.cdt.debug.mi.core.event.MIEvent;
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import org.eclipse.cdt.debug.mi.core.event.MIRegisterChangedEvent;
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import org.eclipse.cdt.debug.mi.core.output.MIDataListChangedRegistersInfo;
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import org.eclipse.cdt.debug.mi.core.output.MIDataListRegisterNamesInfo;
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/**
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*/
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public class RegisterManager extends SessionObject {
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List regList;
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public RegisterManager(CSession session) {
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super(session);
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regList = new ArrayList();
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}
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/**
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* @see org.eclipse.cdt.debug.core.cdi.model.ICDITarget#getRegisterObjects()
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*/
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public ICDIRegisterObject[] getRegisterObjects() throws CDIException {
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MISession mi = getCSession().getMISession();
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CommandFactory factory = mi.getCommandFactory();
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MIDataListRegisterNames registers = factory.createMIDataListRegisterNames();
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try {
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mi.postCommand(registers);
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MIDataListRegisterNamesInfo info =
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registers.getMIDataListRegisterNamesInfo();
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if (info == null) {
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throw new CDIException("No answer");
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}
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String[] names = info.getRegisterNames();
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RegisterObject[] regs = new RegisterObject[names.length];
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for (int i = 0; i < names.length; i++) {
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regs[i] = new RegisterObject(names[i], i);
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}
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return regs;
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} catch (MIException e) {
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throw new CDIException(e.getMessage());
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}
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}
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Register[] getRegisters() {
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return (Register[])regList.toArray(new Register[0]);
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}
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Register getRegister(int regno) throws CDIException {
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Register[] regs = getRegisters();
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for (int i = 0; i < regs.length; i++) {
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if (regs[i].getId() == regno) {
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return regs[i];
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}
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}
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return null;
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}
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Register getRegister(ICDIRegisterObject regObject) throws CDIException {
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Register[] regs = getRegisters();
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for (int i = 0; i < regs.length; i++) {
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if (regObject.getName().equals(regs[i].getName())) {
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return regs[i];
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}
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}
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return null;
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}
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Register createRegister(ICDIRegisterObject regObject) throws CDIException {
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Register reg = getRegister(regObject);
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if (reg == null) {
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reg = new Register(getCSession().getCTarget(), regObject);
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regList.add(reg);
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}
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return reg;
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}
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Register[] createRegisters(ICDIRegisterObject[] regObjects) throws CDIException {
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Register[] regs = new Register[regObjects.length];
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for (int i = 0; i < regs.length; i++) {
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regs[i] = createRegister(regObjects[i]);
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}
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return regs;
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}
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void update() throws CDIException {
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MISession mi = getCSession().getMISession();
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CommandFactory factory = mi.getCommandFactory();
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MIDataListChangedRegisters changed = factory.createMIDataListChangedRegisters();
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try {
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mi.postCommand(changed);
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MIDataListChangedRegistersInfo info =
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changed.getMIDataListChangedRegistersInfo();
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if (info == null) {
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throw new CDIException("No answer");
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}
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int[] regnos = info.getRegisterNumbers();
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List eventList = new ArrayList(regnos.length);
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for (int i = 0 ; i < regnos.length; i++) {
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Register reg = getRegister(regnos[i]);
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if (reg != null) {
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eventList.add(new MIRegisterChangedEvent(reg.getName(), regnos[i]));
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}
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}
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MIEvent[] events = (MIEvent[])eventList.toArray(new MIEvent[0]);
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mi.fireEvents(events);
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} catch (MIException e) {
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throw new CDIException(e.getMessage());
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}
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}
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}
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