mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 18:29:46 +00:00
Updated GettingStartedVS.html to reflect current state.
Reorganized it too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114151 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Oscar Fuentes
parent
8ee731f2ce
commit
96b5f7113a
@ -14,19 +14,12 @@
|
||||
|
||||
<ul>
|
||||
<li><a href="#overview">Overview</a>
|
||||
<li><a href="#quickstart">Getting Started Quickly (A Summary)</a>
|
||||
<li><a href="#requirements">Requirements</a>
|
||||
<ol>
|
||||
<li><a href="#hardware">Hardware</a>
|
||||
<li><a href="#software">Software</a>
|
||||
</ol></li>
|
||||
|
||||
<li><a href="#starting">Getting Started with LLVM</a>
|
||||
<ol>
|
||||
<li><a href="#terminology">Terminology and Notation</a>
|
||||
<li><a href="#objfiles">The Location of LLVM Object Files</a>
|
||||
</ol></li>
|
||||
|
||||
<li><a href="#quickstart">Getting Started</a>
|
||||
<li><a href="#tutorial">An Example Using the LLVM Tool Chain</a>
|
||||
<li><a href="#problems">Common Problems</a>
|
||||
<li><a href="#links">Links</a>
|
||||
@ -47,26 +40,23 @@
|
||||
|
||||
<div class="doc_text">
|
||||
|
||||
<p>The Visual Studio port at this time is experimental. It is suitable for
|
||||
use only if you are writing your own compiler front end or otherwise have a
|
||||
<p>The Visual Studio port has some limitations. It is suitable for
|
||||
use if you are writing your own compiler front end or otherwise have a
|
||||
need to dynamically generate machine code. The JIT and interpreter are
|
||||
functional, but it is currently not possible to generate assembly code which
|
||||
is then assembled into an executable. You can indirectly create executables
|
||||
by using the C back end.</p>
|
||||
is then assembled into an executable. You can output object files
|
||||
in COFF format, though. You can also indirectly create executables
|
||||
by using the C backend.</p>
|
||||
|
||||
<p>To emphasize, there is no C/C++ front end currently available.
|
||||
<tt>llvm-gcc</tt> is based on GCC, which cannot be bootstrapped using VC++.
|
||||
Eventually there should be a <tt>llvm-gcc</tt> based on Cygwin or MinGW that
|
||||
is usable. There is also the option of generating bitcode files on Unix and
|
||||
copying them over to Windows. But be aware the odds of linking C++ code
|
||||
compiled with <tt>llvm-gcc</tt> with code compiled with VC++ is essentially
|
||||
zero.</p>
|
||||
<p><tt>llvm-gcc</tt> is based on GCC, which cannot be bootstrapped
|
||||
using VC++. There are <tt>llvm-gcc</tt> binaries based on MinGW
|
||||
available on the
|
||||
LLVM <a href="http://www.llvm.org/releases/download.html"> download
|
||||
page</a>. Eventually, <a href="http://clang.llvm.org">Clang</a>
|
||||
will be able to produce executables on Windows.</p>
|
||||
|
||||
<p>The LLVM test suite cannot be run on the Visual Studio port at this
|
||||
time.</p>
|
||||
|
||||
<p>Most of the tools build and work. <tt>bugpoint</tt> does build, but does
|
||||
not work. The other tools 'should' work, but have not been fully tested.</p>
|
||||
<p><tt>bugpoint</tt> does build, but does not work. The other tools
|
||||
'should' work, but have not been fully tested.</p>
|
||||
|
||||
<p>Additional information about the LLVM directory structure and tool chain
|
||||
can be found on the main <a href="GettingStarted.html">Getting Started</a>
|
||||
@ -74,89 +64,6 @@
|
||||
|
||||
</div>
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<div class="doc_section">
|
||||
<a name="quickstart"><b>Getting Started Quickly (A Summary)</b></a>
|
||||
</div>
|
||||
<!-- *********************************************************************** -->
|
||||
|
||||
<div class="doc_text">
|
||||
|
||||
<p>Here's the short story for getting up and running quickly with LLVM:</p>
|
||||
|
||||
<ol>
|
||||
<li>Read the documentation.</li>
|
||||
<li>Seriously, read the documentation.</li>
|
||||
<li>Remember that you were warned twice about reading the documentation.</li>
|
||||
|
||||
<li>Get the Source Code
|
||||
<ul>
|
||||
<li>With the distributed files:
|
||||
<ol>
|
||||
<li><tt>cd <i>where-you-want-llvm-to-live</i></tt>
|
||||
<li><tt>gunzip --stdout llvm-<i>version</i>.tar.gz | tar -xvf -</tt>
|
||||
<i> or use WinZip</i>
|
||||
<li><tt>cd llvm</tt></li>
|
||||
</ol></li>
|
||||
|
||||
<li>With anonymous Subversion access:
|
||||
<ol>
|
||||
<li><tt>cd <i>where-you-want-llvm-to-live</i></tt></li>
|
||||
<li><tt>svn co http://llvm.org/svn/llvm-project/llvm-top/trunk llvm-top
|
||||
</tt></li>
|
||||
<li><tt>make checkout MODULE=llvm</tt>
|
||||
<li><tt>cd llvm</tt></li>
|
||||
</ol></li>
|
||||
</ul></li>
|
||||
|
||||
<li> Use <a href="http://www.cmake.org/">CMake</a> to generate up-to-date
|
||||
project files:
|
||||
<ul><li>This step is currently optional as LLVM does still come with a
|
||||
normal Visual Studio solution file, but it is not always kept up-to-date
|
||||
and will soon be deprecated in favor of the multi-platform generator
|
||||
CMake.</li>
|
||||
<li>If CMake is installed then the most simple way is to just start the
|
||||
CMake GUI, select the directory where you have LLVM extracted to, and
|
||||
the default options should all be fine. The one option you may really
|
||||
want to change, regardless of anything else, might be the
|
||||
CMAKE_INSTALL_PREFIX setting to select a directory to INSTALL to once
|
||||
compiling is complete.</li>
|
||||
<li>If you use CMake to generate the Visual Studio solution and project
|
||||
files, then the Solution will have a few extra options compared to the
|
||||
current included one. The projects may still be built individually, but
|
||||
to build them all do not just select all of them in batch build (as some
|
||||
are meant as configuration projects), but rather select and build just
|
||||
the ALL_BUILD project to build everything, or the INSTALL project, which
|
||||
first builds the ALL_BUILD project, then installs the LLVM headers, libs,
|
||||
and other useful things to the directory set by the CMAKE_INSTALL_PREFIX
|
||||
setting when you first configured CMake.</li>
|
||||
</ul>
|
||||
</li>
|
||||
|
||||
<li>Start Visual Studio
|
||||
<ul>
|
||||
<li>If you did not use CMake, then simply double click on the solution
|
||||
file <tt>llvm/win32/llvm.sln</tt>.</li>
|
||||
<li>If you used CMake, then the directory you created the project files,
|
||||
the root directory will have an <tt>llvm.sln</tt> file, just
|
||||
double-click on that to open Visual Studio.</li>
|
||||
</ul></li>
|
||||
|
||||
<li>Build the LLVM Suite:
|
||||
<ul>
|
||||
<li>Simply build the solution.</li>
|
||||
<li>The Fibonacci project is a sample program that uses the JIT. Modify
|
||||
the project's debugging properties to provide a numeric command line
|
||||
argument. The program will print the corresponding fibonacci value.</li>
|
||||
</ul></li>
|
||||
|
||||
</ol>
|
||||
|
||||
<p>It is strongly encouraged that you get the latest version from Subversion as
|
||||
changes are continually making the VS support better.</p>
|
||||
|
||||
</div>
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<div class="doc_section">
|
||||
<a name="requirements"><b>Requirements</b></a>
|
||||
@ -206,59 +113,82 @@ changes are continually making the VS support better.</p>
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<div class="doc_section">
|
||||
<a name="starting"><b>Getting Started with LLVM</b></a>
|
||||
<a name="quickstart"><b>Getting Started</b></a>
|
||||
</div>
|
||||
<!-- *********************************************************************** -->
|
||||
|
||||
<div class="doc_text">
|
||||
|
||||
<p>The remainder of this guide is meant to get you up and running with
|
||||
LLVM using Visual Studio and to give you some basic information about the LLVM
|
||||
environment.</p>
|
||||
<p>Here's the short story for getting up and running quickly with LLVM:</p>
|
||||
|
||||
</div>
|
||||
<ol>
|
||||
<li>Read the documentation.</li>
|
||||
<li>Seriously, read the documentation.</li>
|
||||
<li>Remember that you were warned twice about reading the documentation.</li>
|
||||
|
||||
<!-- ======================================================================= -->
|
||||
<div class="doc_subsection">
|
||||
<a name="terminology">Terminology and Notation</a>
|
||||
</div>
|
||||
<li>Get the Source Code
|
||||
<ul>
|
||||
<li>With the distributed files:
|
||||
<ol>
|
||||
<li><tt>cd <i>where-you-want-llvm-to-live</i></tt>
|
||||
<li><tt>gunzip --stdout llvm-<i>version</i>.tar.gz | tar -xvf -</tt>
|
||||
<i> or use WinZip</i>
|
||||
<li><tt>cd llvm</tt></li>
|
||||
</ol></li>
|
||||
|
||||
<div class="doc_text">
|
||||
<li>With anonymous Subversion access:
|
||||
<ol>
|
||||
<li><tt>cd <i>where-you-want-llvm-to-live</i></tt></li>
|
||||
<li><tt>svn co http://llvm.org/svn/llvm-project/llvm-top/trunk llvm-top
|
||||
</tt></li>
|
||||
<li><tt>make checkout MODULE=llvm</tt>
|
||||
<li><tt>cd llvm</tt></li>
|
||||
</ol></li>
|
||||
</ul></li>
|
||||
|
||||
<li> Use <a href="http://www.cmake.org/">CMake</a> to generate up-to-date
|
||||
project files:
|
||||
<ul>
|
||||
<li>Once CMake is installed then the most simple way is to just
|
||||
start the CMake GUI, select the directory where you have LLVM
|
||||
extracted to, and the default options should all be fine. One
|
||||
option you may really want to change, regardless of anything
|
||||
else, might be the CMAKE_INSTALL_PREFIX setting to select a
|
||||
directory to INSTALL to once compiling is complete, although
|
||||
installation is not mandatory for using LLVM. Another
|
||||
important option is LLVM_TARGETS_TO_BUILD, which controls the
|
||||
LLVM target architectures that are included on the build. If
|
||||
you want to run the <a href="#tutorial">example described
|
||||
below</a> you must set that variable to "X86;CBackend".</li>
|
||||
<li>See the <a href="CMake.html">LLVM CMake guide</a> for
|
||||
detailed information about how to configure the LLVM
|
||||
build.</li>
|
||||
</ul>
|
||||
</li>
|
||||
|
||||
<p>Throughout this manual, the following names are used to denote paths
|
||||
specific to the local system and working environment. <i>These are not
|
||||
environment variables you need to set but just strings used in the rest
|
||||
of this document below</i>. In any of the examples below, simply replace
|
||||
each of these names with the appropriate pathname on your local system.
|
||||
All these paths are absolute:</p>
|
||||
<li>Start Visual Studio
|
||||
<ul>
|
||||
<li>In the directory you created the project files will have
|
||||
an <tt>llvm.sln</tt> file, just double-click on that to open
|
||||
Visual Studio.</li>
|
||||
</ul></li>
|
||||
|
||||
<dl>
|
||||
<dt>SRC_ROOT</dt>
|
||||
<dd><p>This is the top level directory of the LLVM source tree.</p></dd>
|
||||
<li>Build the LLVM Suite:
|
||||
<ul>
|
||||
<li>The projects may still be built individually, but
|
||||
to build them all do not just select all of them in batch build (as some
|
||||
are meant as configuration projects), but rather select and build just
|
||||
the ALL_BUILD project to build everything, or the INSTALL project, which
|
||||
first builds the ALL_BUILD project, then installs the LLVM headers, libs,
|
||||
and other useful things to the directory set by the CMAKE_INSTALL_PREFIX
|
||||
setting when you first configured CMake.</li>
|
||||
<li>The Fibonacci project is a sample program that uses the JIT.
|
||||
Modify the project's debugging properties to provide a numeric
|
||||
command line argument or run it from the command line. The
|
||||
program will print the corresponding fibonacci value.</li>
|
||||
</ul></li>
|
||||
|
||||
<dt>OBJ_ROOT</dt>
|
||||
<dd><p>This is the top level directory of the LLVM object tree (i.e. the
|
||||
tree where object files and compiled programs will be placed. It is
|
||||
fixed at SRC_ROOT/win32).</p></dd>
|
||||
</dl>
|
||||
|
||||
</div>
|
||||
|
||||
<!-- ======================================================================= -->
|
||||
<div class="doc_subsection">
|
||||
<a name="objfiles">The Location of LLVM Object Files</a>
|
||||
</div>
|
||||
|
||||
<div class="doc_text">
|
||||
|
||||
<p>The object files are placed under <tt>OBJ_ROOT/Debug</tt> for debug builds
|
||||
and <tt>OBJ_ROOT/Release</tt> for release (optimized) builds. These include
|
||||
both executables and libararies that your application can link against.</p>
|
||||
|
||||
<p>The files that <tt>configure</tt> would create when building on Unix are
|
||||
created by the <tt>Configure</tt> project and placed in
|
||||
<tt>OBJ_ROOT/llvm</tt>. You application must have OBJ_ROOT in its include
|
||||
search path just before <tt>SRC_ROOT/include</tt>.</p>
|
||||
</ol>
|
||||
|
||||
</div>
|
||||
|
||||
@ -296,9 +226,9 @@ int main() {
|
||||
<tt>lli</tt> tool, compile it to native assembly with the <tt>llc</tt>,
|
||||
optimize or analyze it further with the <tt>opt</tt> tool, etc.</p>
|
||||
|
||||
<p><b>Note: while you cannot do this step on Windows, you can do it on a
|
||||
Unix system and transfer <tt>hello.bc</tt> to Windows. Important:
|
||||
transfer as a binary file!</b></p></li>
|
||||
<p><b>Note: you will need the llvm-gcc binaries from the
|
||||
LLVM <a href="http://www.llvm.org/releases/download.html">
|
||||
download page</a></b></p></li>
|
||||
|
||||
<li><p>Run the program using the just-in-time compiler:</p>
|
||||
|
||||
@ -327,6 +257,15 @@ int main() {
|
||||
<pre>
|
||||
% llc -march=c hello.bc
|
||||
</pre>
|
||||
|
||||
<p><b>Note: you need to add the C backend to the LLVM build,
|
||||
which amounts to setting the CMake
|
||||
variable <i>LLVM_TARGETS_TO_BUILD</i> to "X86;CBackend" when
|
||||
you generate the VS solution files. See
|
||||
the <a href="CMake.html">LLVM CMake guide</a> for more
|
||||
information about how to configure the LLVM
|
||||
build.</b></p></li>
|
||||
|
||||
</div></li>
|
||||
|
||||
<li><p>Compile to binary using Microsoft C:</p>
|
||||
@ -360,17 +299,6 @@ int main() {
|
||||
|
||||
<div class="doc_text">
|
||||
|
||||
<ul>
|
||||
<li>In Visual C++, if you are linking with the x86 target statically, the
|
||||
linker will remove the x86 target library from your generated executable or
|
||||
shared library because there are no references to it. You can force the
|
||||
linker to include these references by using
|
||||
<tt>"/INCLUDE:_X86TargetMachineModule"</tt> when linking. In the Visual
|
||||
Studio IDE, this can be added in
|
||||
<tt>Project Properties->Linker->Input->Force Symbol References</tt>.
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
<p>If you are having problems building or using LLVM, or if you have any other
|
||||
general questions about LLVM, please consult the <a href="FAQ.html">Frequently
|
||||
Asked Questions</a> page.</p>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user