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Attachment #13194
CDT modification proposal for 64-bit support	text/html	2004-07-13 09:11:32 EDT	54.58 KB	no flags	Details

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<body lang=RU link=blue vlink=purple style='tab-interval:35.4pt'>

<div class=Section1>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>Table of
contents</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc1><span class=MsoHyperlink><a href="#_Toc77488365"><span
lang=EN-US style='mso-ansi-language:EN-US'>1</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang=EN-US
style='mso-ansi-language:EN-US'>CDT 2.0 problems</span><span lang=EN-US
style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:EN-US;
text-decoration:none;text-underline:none'>. 1</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc1><span class=MsoHyperlink><a href="#_Toc77488366"><span
lang=EN-US style='mso-ansi-language:EN-US'>2</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang=EN-US
style='mso-ansi-language:EN-US'>Design solution</span><span lang=EN-US
style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:EN-US;
text-decoration:none;text-underline:none'>. 1</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc1><span class=MsoHyperlink><a href="#_Toc77488367"><span
lang=EN-US style='mso-ansi-language:EN-US'>3</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang=EN-US
style='mso-ansi-language:EN-US'>High Level Design</span><span lang=EN-US
style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:EN-US;
text-decoration:none;text-underline:none'>. 1</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc2><span class=MsoHyperlink><a href="#_Toc77488368"><span
lang=EN-US style='mso-ansi-language:EN-US'>3.1</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Plug-ins modified</span><span
lang=EN-US style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:
EN-US;text-decoration:none;text-underline:none'>. 1</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc2><span class=MsoHyperlink><a href="#_Toc77488369"><span
lang=EN-US style='mso-ansi-language:EN-US'>3.2</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Address abstraction  <span
class=SpellE>IAddress</span> interface</span><span lang=EN-US style='color:
windowtext;display:none;mso-hide:all;mso-ansi-language:EN-US;text-decoration:
none;text-underline:none'>. 2</span></a></span><span lang=EN-US
style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc2><span class=MsoHyperlink><a href="#_Toc77488370"><span
lang=EN-US style='mso-ansi-language:EN-US'>3.3</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Address factory</span><span
lang=EN-US style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:
EN-US;text-decoration:none;text-underline:none'>. 2</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc2><span class=MsoHyperlink><a href="#_Toc77488371"><span
lang=EN-US style='mso-ansi-language:EN-US'>3.4</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Binary parser enhancements</span><span
lang=EN-US style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:
EN-US;text-decoration:none;text-underline:none'>. 3</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc2><span class=MsoHyperlink><a href="#_Toc77488372"><span
lang=EN-US style='mso-ansi-language:EN-US'>3.5</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Address factory usage</span><span
lang=EN-US style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:
EN-US;text-decoration:none;text-underline:none'>. 3</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoToc1><span class=MsoHyperlink><a href="#_Toc77488373"><span
lang=EN-US style='mso-ansi-language:EN-US'>4</span><span lang=EN-US
style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none;
text-underline:none'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang=EN-US
style='mso-ansi-language:EN-US'>Advantages</span><span lang=EN-US
style='color:windowtext;display:none;mso-hide:all;mso-ansi-language:EN-US;
text-decoration:none;text-underline:none'>. 3</span></a></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<h1><a name="_Toc77488365"></a><a name="CDT_Proplems"></a><span
style='mso-bookmark:_Toc77488365'><span lang=EN-US style='mso-ansi-language:
EN-US'>1</span></span><span style='mso-bookmark:_Toc77488365'><span lang=EN-US
style='font-size:7.0pt;font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488365'><span lang=EN-US
style='mso-ansi-language:EN-US'>CDT 2.0 problems</span></span><span lang=EN-US
style='mso-ansi-language:EN-US'><o:p></o:p></span></h1>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>CDT 2.0 has
several problems that prevent it from usage for 64-bit platform. They are as
follows.<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>Problems with
addresses</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>CDT uses Java long type
to manipulate with pointers<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>CDT assumes that
addresses may be ONLY 32bit <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>All address operations
are done as regular Java long operations (+,-<span class=GramE>,&lt;</span>,&gt;,==)<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>C/C++ long type is
handled correctly</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>CDT assumes that long
is 32bit length however it is 64 bit length on Linux 64bit platforms and 32 bit
length on Windows 64bit platform<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>ELF64 binary format
which is used on Linux 64bit platforms is not supported</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>As the result
information about following binary files is not displayed correctly in C/C++
perspective<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Object files - *.o
files<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Shared libraries - *.so
files<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Binary archives - *.a<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Binary executables<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<h1><a name="_Toc77488366"></a><a name="Design_sol"></a><span style='mso-bookmark:
_Toc77488366'><span lang=EN-US style='mso-ansi-language:EN-US'>2</span></span><span
style='mso-bookmark:_Toc77488366'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488366'><span lang=EN-US
style='mso-ansi-language:EN-US'>Design solution</span></span><span lang=EN-US
style='mso-ansi-language:EN-US'> <o:p></o:p></span></h1>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Design
solution was concentrated on minimizing modifications to the CDT concept and on
providing extensible solution. Each problem was addressed respectively.<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>Introduce new type
to handle pointers in CDT</span></b><span lang=EN-US style='mso-ansi-language:
EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Introduce new interface
which supports all operations necessary for pointers<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Replace all use cases
where address is interpreted as Java long are with new interface<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Introduce address factory
to enable creation of particular address object<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>Enhance ELF binary
parser to support ELF64 binary format</span></b><span lang=EN-US
style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.25in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=GramE><b><span lang=EN-US style='mso-ansi-language:EN-US'>Correct</span></b></span><b><span
lang=EN-US style='mso-ansi-language:EN-US'> interpretation of long C/C++
variables</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<h1><a name="_Toc77488367"></a><a name=HLD></a><span style='mso-bookmark:_Toc77488367'><span
lang=EN-US style='mso-ansi-language:EN-US'>3</span></span><span
style='mso-bookmark:_Toc77488367'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488367'><span lang=EN-US
style='mso-ansi-language:EN-US'>High Level Design</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'> <o:p></o:p></span></h1>

<h2><a name="_Toc77488368"><span lang=EN-US style='mso-ansi-language:EN-US'>3.1</span></a><span
style='mso-bookmark:_Toc77488368'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488368'><span lang=EN-US
style='mso-ansi-language:EN-US'>Plug-ins modified</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></h2>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Following
plug-ins should be modified during CDT enhancement<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>org.eclipse.cdt.core</span></b></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>org.eclipse.cdt.debug.core</span></b></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>org.eclipse.cdt.debug.mi.core</span></b></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>org.eclipse.cdt.debug.ui</span></b></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>org.eclipse.cdt.debug.mi.ui</span></b></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<h2><a name="_Toc77488369"><span lang=EN-US style='mso-ansi-language:EN-US'>3.2</span></a><span
style='mso-bookmark:_Toc77488369'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488369'><span lang=EN-US
style='mso-ansi-language:EN-US'>Address abstraction  <span class=SpellE>IAddress</span>
interface</span></span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></h2>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Key point
of 64bit support is new interface called <span class=SpellE>IAddress</span>. <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Represents C/C++
address in CDT <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>Has</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'> all methods necessary to manipulate
address<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Comparison<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Add/Subtraction<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Conversion to string<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Address
interface is defined as follows<o:p></o:p></span></p>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span class=GramE><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:
EN-US'>public</span></span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'> interface <span class=SpellE>IAddress</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>{</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>IAddress</span> <span class=GramE>add(</span><span
class=SpellE>BigInteger</span> offset);</span><span lang=EN-US
style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>BigInteger</span> <span class=SpellE><span class=GramE>getMaxOffset</span></span><span
class=GramE>(</span>);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>BigInteger</span> <span class=GramE>distance(</span><span
class=SpellE>IAddress</span> other);</span><span lang=EN-US style='mso-ansi-language:
EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>int</span></span> <span class=SpellE>compareTo</span>(<span
class=SpellE>IAddress</span> <span class=SpellE>addr</span>);</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>boolean</span></span> equals(<span
class=SpellE>IAddress</span> <span class=SpellE>addr</span>);</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>boolean</span></span> <span class=SpellE>isZero</span>();</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>boolean</span></span> <span class=SpellE>isMax</span>();</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
String <span class=SpellE><span class=GramE>toString</span></span><span
class=GramE>(</span><span class=SpellE>int</span> radix);</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
String <span class=SpellE><span class=GramE>toString</span></span><span
class=GramE>(</span>);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
String <span class=SpellE><span class=GramE>toHexAddressString</span></span><span
class=GramE>(</span>);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>int</span></span> <span class=SpellE>getDigitsNum</span>();</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE><span class=GramE>int</span></span> <span class=SpellE>getCharsNum</span>();</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>}</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>Two</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'> new classes are defined to
implement new interface  Addr32 and Addr64. These classes provide concrete
behavior of addresses depending on target system <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>All</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'> places in CDT where addresses were
interpreted as Java long type were replaced with <span class=SpellE>IAddress</span>
abstraction<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<h2><a name="_Toc77488370"><span lang=EN-US style='mso-ansi-language:EN-US'>3.3</span></a><span
style='mso-bookmark:_Toc77488370'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488370'><span lang=EN-US
style='mso-ansi-language:EN-US'>Address factory</span></span><span lang=EN-US
style='mso-ansi-language:EN-US'><o:p></o:p></span></h2>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Because
address is represented as Java interface in CDT we need address factory to have
ability to create address objects<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Address
factory is defined as an interface which supports address creation<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
mso-ansi-language:EN-US'>&nbsp;</span><span lang=EN-US style='mso-ansi-language:
EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span class=GramE><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:
EN-US'>public</span></span><span lang=EN-US style='font-size:10.0pt;font-family:
"Courier New";mso-ansi-language:EN-US'> interface <span class=SpellE>IAddressFactory</span>
</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>{</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>IAddress</span> <span class=SpellE><span class=GramE>getZero</span></span><span
class=GramE>(</span>);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>IAddress</span> <span class=SpellE><span class=GramE>getMax</span></span><span
class=GramE>(</span>);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>IAddress</span> <span class=SpellE><span class=GramE>createAddress</span></span><span
class=GramE>(</span>String <span class=SpellE>addr</span>);</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span class=SpellE>IAddress</span> <span class=SpellE><span class=GramE>createAddress</span></span><span
class=GramE>(</span>String <span class=SpellE>addr</span>, <span class=SpellE>int</span>
radix);</span><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";mso-ansi-language:EN-US'>}</span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Two new
classes are defined to implement address factories  Addr32Factory and
Addr64Factory. These classes provide concrete behavior of addresses factories
depending on target system <o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<h2><a name="_Toc77488371"><span lang=EN-US style='mso-ansi-language:EN-US'>3.4</span></a><span
style='mso-bookmark:_Toc77488371'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488371'><span lang=EN-US
style='mso-ansi-language:EN-US'>Binary parser enhancements</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></h2>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Modification
to binary parser consists of two changes<o:p></o:p></span></p>

<ol style='margin-top:0in' start=1 type=1>
 <li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
     lang=EN-US style='mso-ansi-language:EN-US'>ELF64 format support</span></li>
 <ol style='margin-top:0in' start=1 type=a>
  <li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
      lang=EN-US style='mso-ansi-language:EN-US'>ELF64 is quite common to ELF
      format so the decision was to modify ELF parser rather than to create new
      ELF64 parser so modifications to CDT are minimal<o:p></o:p></span></li>
  <li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
      lang=EN-US style='mso-ansi-language:EN-US'>Only differences between ELF64
      and ELF formats are 64-bit addresses and 64-bit offsets<o:p></o:p></span></li>
 </ol>
</ol>

<p class=MsoNormal style='margin-left:1.5in;text-indent:-1.5in'><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><span lang=EN-US style='mso-ansi-language:EN-US'>i</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'>.</span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
lang=EN-US style='mso-ansi-language:EN-US'>Java long is steel used as offset in
ELF64 file because all Java I/O method operates with long as file offset.
Offset is only used to read information from ELF64 file, so it is impossible to
have offsets greater than <span class=SpellE>Long.MAX_VALUE</span><o:p></o:p></span></p>

<ol style='margin-top:0in' start=2 type=1>
 <li class=MsoNormal style='mso-list:l6 level1 lfo2;tab-stops:list .5in'><span
     lang=EN-US style='mso-ansi-language:EN-US'>New method to support address
     factory<o:p></o:p></span></li>
 <ol style='margin-top:0in' start=1 type=a>
  <li class=MsoNormal style='mso-list:l6 level2 lfo2;tab-stops:list 1.0in'><span
      lang=EN-US style='mso-ansi-language:EN-US'>Existing <span class=SpellE>IBinaryParser.IBinaryObject</span>
      interface is enhanced to have <span class=SpellE>getAddressFactory</span>()
      method<o:p></o:p></span></li>
  <li class=MsoNormal style='mso-list:l6 level2 lfo2;tab-stops:list 1.0in'><span
      lang=EN-US style='mso-ansi-language:EN-US'>This interface provides to the
      CDT framework all information about binary file which is going to be
      debugged so it is most appropriate place to define nature of address<o:p></o:p></span></li>
  <li class=MsoNormal style='mso-list:l6 level2 lfo2;tab-stops:list 1.0in'><span
      class=SpellE><span lang=EN-US style='mso-ansi-language:EN-US'>IBinaryParser</span></span><span
      lang=EN-US style='mso-ansi-language:EN-US'> interface is implemented by
      various binary parsers provided with CDT (ELF<span class=GramE>,COFF,</span></span><st1:place><st1:City><span
        class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>XCOFF</span></span></st1:City><span
       class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>,</span></span><st1:State><span
        class=GramE><span lang=EN-US style='mso-ansi-language:EN-US'>PE</span></span></st1:State></st1:place><span
      lang=EN-US style='mso-ansi-language:EN-US'>). All other binary parsers
      except ELF were modified to simply provide Addr32Factory in <span
      class=SpellE><span class=GramE>getAddressFactory</span></span><span
      class=GramE>(</span>) method so 32-bit addresses are used.<o:p></o:p></span></li>
 </ol>
</ol>

<p class=MsoNormal><b><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<h2><a name="_Toc77488372"><span lang=EN-US style='mso-ansi-language:EN-US'>3.5</span></a><span
style='mso-bookmark:_Toc77488372'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488372'><span lang=EN-US
style='mso-ansi-language:EN-US'>Address factory usage</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></h2>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Access to
address factory is required on different levels of CDT model. Several elements
of CDT model were enhanced to have references to <span class=SpellE>IAddressFactory</span>
to provide ability to create address objects on different levels of CDT model.
They are<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><span lang=EN-US style='mso-ansi-language:EN-US'>IBinary</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'>  represents binary file in C model<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><span lang=EN-US style='mso-ansi-language:EN-US'>CDebugTarget</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'>  represents C debug target. It is
used to communicate to upper Eclipse debug framework <span class=SpellE>org.eclipse.debug.core</span>
and to provide information to debug UI level<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
class=GramE><span lang=EN-US style='font-family:Wingdings;mso-ansi-language:
EN-US'>l</span><span lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Target  represents
debug target in terms of CDI (Common Debug Interface) model on MI level.</span></span><span
lang=EN-US style='mso-ansi-language:EN-US'> <o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>As the
result <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>CDT operates address
abstractions which encapsulate particular addresses behavior<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Polymorphism of
addresses is provided using address factories<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Concrete address
factory is created based on format of executable<o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<h1><a name="_Toc77488373"><span lang=EN-US style='mso-ansi-language:EN-US'>4</span></a><span
style='mso-bookmark:_Toc77488373'><span lang=EN-US style='font-size:7.0pt;
font-family:"Times New Roman";mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><span style='mso-bookmark:_Toc77488373'><span lang=EN-US
style='mso-ansi-language:EN-US'>Advantages</span></span><span lang=EN-US
style='mso-ansi-language:EN-US'> <o:p></o:p></span></h1>

<p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>&nbsp;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>Modifications to CDT
are minimal</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>All places where
address is used as Java long were replaced with <span class=SpellE>IAddress</span><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><b><span lang=EN-US style='mso-ansi-language:EN-US'>CDT does not depend
on address nature</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>In future we may invent
16bit address for embedded systems for example<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>In this case we will
need to provide proper binary parser and debugger. There wont be need to
modify CDT.<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE><b><span lang=EN-US style='mso-ansi-language:EN-US'>IAddress</span></b></span><b><span
lang=EN-US style='mso-ansi-language:EN-US'> fully encapsulates address behavior</span></b><span
lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>Places where addresses
are manipulated are clear to understand and maintain<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>No need to have
utilities to convert Java long to address string<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><span
lang=EN-US style='font-family:Wingdings;mso-ansi-language:EN-US'>l</span><span
lang=EN-US style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=GramE><b><span lang=EN-US style='mso-ansi-language:EN-US'>The</span></b></span><b><span
lang=EN-US style='mso-ansi-language:EN-US'> same version of CDT code is able to
work with 32bit and 64bit applications (And any other address size in the
future)</span></b><span lang=EN-US style='mso-ansi-language:EN-US'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>It is possible to have
two debug sessions now with different targets. For example<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>One local session for
32bit application<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in'><span
lang=EN-US style='mso-ansi-language:EN-US'></span><span lang=EN-US
style='font-size:7.0pt;mso-ansi-language:EN-US'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span lang=EN-US style='mso-ansi-language:EN-US'>And remote for 64 bit
application<o:p></o:p></span></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

</div>

</body>

</html>

Attachment #14570
ALL-IN-ONE patch for 64-bit support	patch	2004-09-16 08:31:32 EDT	201.08 KB	bjorn.freeman-benson: iplog+	Details

Attachment #14602
64bit patch for CDT CORE 2.1 HEAD	patch	2004-09-17 05:34:16 EDT	68.86 KB	bjorn.freeman-benson: iplog+	Details

Attachment #14640
CDT 2.0 64-bit and 32-bit test results	application/octet-stream	2004-09-20 05:24:11 EDT	72.49 KB	no flags	Details

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