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A guide to applying the patch, building, and testing gdfa

The current gdfa patch is released for gcc-4.5.0 and gcc-4.3.0. You can download the patch and substitute gcc-4.x.x in the instructions given below with your gcc tarball version.

Step I : Downloading the gcc source code tarball and patch files

Make a new folder 'gdfa', and cd to it
~/$. mkdir gdfa
~/$. cd gdfa
Download gcc-4.x.x tarball in this folder.
Download the required version of patch file in this folder.
Untar the gcc-4.x.x tarball
~/gdfa$. tar -xvf gcc-4.x.x-tar.gz
After untarring, you will see a folder 'gcc-4.x.x'
Make the 'build' and 'install' directories.
~/gdfa$. mkdir build
~/gdfa$. mkdir install

Step II : Applying the patch

Apply the appropriate version of patch. For example, if you wish to apply the version 1.4 patch, and you have downloaded the same in step I, issue the following command on the terminal:
~/gdfa$. patch -p0 < gdfa-v1.4-gcc-4.5.0.patch

Step III : Building GCC 4.3.0

Let us assume that $INSTALL is the absolute path of install directory, and $SRC is the absolute path of gcc-4.x.x directory.
cd to the build directory.
~/gdfa$. cd build
Configure gcc-4.x.x. For example, if we wish to build a C compiler, type the following to configure gcc.
~/gdfa/build$. $SRC/configure --enable-languages=c --prefix=$INSTALL
If you are building gcc-4.5.0, disable LTO support by including the option --disable-lto
After configuring successfully, build gcc-4.x.x.
~/gdfa/build$. make
If a successful make, install the gcc binaries in the install directory.
~/gdfa/build$. make install

Step IV : Testing gdfa

Create any sample program, say 'test.c'.
Perform gdfa analysis using the recently built gcc-4.x.x.
~/$. $INSTALL/bin/gcc -fdump-tree-all -fgdfa -fgdfa-details test.c
Inspect the generated dumps to analyze the information gathered by gdfa passes.

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NEWS List of Conferences GCC wins ACM SIGPLAN Programming Languages Software Award Tutorial at PLDI 2014 Videos of the lectures in Essential Abstractions in GCC Workshop . Workshop on Essential Abstractions in GCC (June 29 - July 3, 2013) PAST NEWS LFCPA (Liveness-Based Pointer Analysis) Released Tutorial on GCC for Parallelization (in conjuction with PPoPP 2012, New Orleans, LA, USA) Prof. Uday Khedker on Liveness Analysis for Heaps on CompuCast Podcast and YouTube Tutorial on Essential Abstractions in GCC (in conjuction with CGO 2011, Chamonix, France) Workshop on Essential Abstractions in GCC (June 30 - July 3, 2012) Workshop on Essential Abstractions in GCC (June 30 - July 3, 2011) Workshop on Essential Abstractions in GCC (July 5-8, 2010) Tutorial on GCC for Parallelization as part of ACM PPoPP 2010 Workshop on Compiler Construction with Introduction to GCC (7th to 13th December 2009) Workshop on Essential Abstractions in GCC (3rd to 5th July 2009)	A guide to applying the patch, building, and testing gdfa The current gdfa patch is released for gcc-4.5.0 and gcc-4.3.0. You can download the patch and substitute gcc-4.x.x in the instructions given below with your gcc tarball version. Step I : Downloading the gcc source code tarball and patch files Make a new folder 'gdfa', and cd to it ~/$. mkdir gdfa ~/$. cd gdfa Download gcc-4.x.x tarball in this folder. Download the required version of patch file in this folder. Untar the gcc-4.x.x tarball ~/gdfa$. tar -xvf gcc-4.x.x-tar.gz After untarring, you will see a folder 'gcc-4.x.x' Make the 'build' and 'install' directories. ~/gdfa$. mkdir build ~/gdfa$. mkdir install Step II : Applying the patch Apply the appropriate version of patch. For example, if you wish to apply the version 1.4 patch, and you have downloaded the same in step I, issue the following command on the terminal: ~/gdfa$. patch -p0 < gdfa-v1.4-gcc-4.5.0.patch Step III : Building GCC 4.3.0 Let us assume that $INSTALL is the absolute path of install directory, and $SRC is the absolute path of gcc-4.x.x directory. cd to the build directory. ~/gdfa$. cd build Configure gcc-4.x.x. For example, if we wish to build a C compiler, type the following to configure gcc. ~/gdfa/build$. $SRC/configure --enable-languages=c --prefix=$INSTALL If you are building gcc-4.5.0, disable LTO support by including the option --disable-lto After configuring successfully, build gcc-4.x.x. ~/gdfa/build$. make If a successful make, install the gcc binaries in the install directory. ~/gdfa/build$. make install Step IV : Testing gdfa Create any sample program, say 'test.c'. Perform gdfa analysis using the recently built gcc-4.x.x. ~/$. $INSTALL/bin/gcc -fdump-tree-all -fgdfa -fgdfa-details test.c Inspect the generated dumps to analyze the information gathered by gdfa passes.	QUICK LINKS GCC Internals GCC FAQs GCC on Wikipedia GCC Internals on Wikipedia SEARCH
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