BINUTILS 2.22 DOCUMENTATION PDF

The Binutils documentation recommends building Binutils outside of the source directory in a dedicated binutils/configure –prefix=/usr –enable-shared. binutilsbuild_fixpatch. The Binutils documentation recommends building Binutils outside of the source directory in a dedicated build directory: mkdir -v. Red Hat Developer Toolset is distributed with binutils , which For details on how to use these new features, refer to the binutils documentation.

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The authors have used their best efforts in preparing this material. These efforts include the development, research, and testing of the theories and programs to determine their effectiveness. No warranty of any kind, expressed or implied, with regard to the software or the material contained in this document is provided.

No liability arising out of the application or use of any product described in this document is assumed. The authors reserve the right to revise this material and to make changes from time to time in the content hereof without obligation to notify anyone of such revision or changes. Any inquiries concerning RTEMS, its related support components, or its documentation should be directed to the Community Project hosted at http: The RSB helps consolidate the details you need to build a package from source in a controlled and verifiable way.

The tool is aimed at developers of software who use tool sets for embedded development. Embedded development typically uses cross-compiling tool chains, debuggers, and debugging aids. Together we call these a tool set. A build set is a collection of packages and a package is a specific tool, for example gcc or gdb, or library.

Talk:GCC Cross-Compiler

The RSB is not some sort of magic that can take any piece of source code and make it build. Someone at some point in time has figured out how to build that package from source and taught this tool. The first is the build set. A build set describes a collection of packages that define a set of tools you would use when documentatuon software for RTEMS.

For example the basic GNU tool set is binutils, gcc, and gdb and is the typical base suite of tools you need for an embedded cross-development type project. The second type of configuration data is the configuration files and they define how a package is built. Configuration files are scripts loosely based on the RPM spec file format and they detail the steps needed to build a package.

binutils 2.22-6ubuntu1.2 source package in Ubuntu

The steps are preparationbuildingand installing. Scripts support macros, shell expansion, logic, includes plus many more features useful when build packages. There is no automatic dependence checking between various packages you build or packages and software your host system you may have installed. We assume the build sets and configuration files you are using have been created by developers who do.

Support is provided for package config or pkgconfg type files so you can check and use standard libraries if present. If you have a problem please ask on our Developers Mailing List. The RTEMS Source Builder is not a replacement for the binary install systems binugils have with commercial operating systems or open source operating system distributions.

Those products and distributions are critically important and are the base that allows the RSB to work. The RTEMS Source Builder sits somewhere between you manually entering the commands to build a tool set and a tool such as yum or apt-get to install binary packages made specifically for bimutils host operating system. Bimutils manually or installing a binary package from a remote repository are valid and real alternatives. The RSB provides the specific service of repeatably being able to build tool sets from source code.

The process leaves you with the source code used to build the tools and the ability to rebuilt it. If you are developing a system or product that has a long shelf life or is used in a critical piece of infrastructure that has a long life cycle being able to build from source is important.

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It insulates the project from the fast ever changing world of the host development machines.

Documentation for binutils

If your tool set is binary and you have lost the ability to build it you have lost a degree of control and flexibility open source gives you. Fast moving host environments are fantastic. We have powerful multi-core computers with huge amounts of memory and state of the art operating systems to run on them however the product or project you are part of may need to be maintained well past the life time of these host.

Being able to build from source an important and critical part of this process because you can move to a newer host and create an equivalent tool set. Building from source provides you with control over the configuration of the package you are building. If all or the most important dependent parts are built from source you limit the exposure to host variations.

For example the GNU C compiler gcc currently uses a number of 3rd party libraries internally gmp, mpfr, etc. Building your tools from source and controlling the specific version of these dependent parts means you are not exposing yourself to unexpected and often difficult to resolve problems.

On the other side you need to make sure your tools build and work with newer versions of the host operating system. Given the stability of standards based libraries like libc and ever improving support for standard header file locations this task is becoming easier. If your project is developing critical applications that needs to be traced from source to executable code in the target, you need to also consider the tools and how to track them.

If your IT department maintains all your computers and you do not have suitable rights to install binary packages, building from source lets you create your own tool set that you install under your home directory. Avoiding installing any extra packages as a super user is always helpful in maintaining a secure computing environment. At the time the RTEMS tools maintainer only supported spec files and these files held all the vital configuration data needed to create suitable tool sets.

The available SRPM and spec files by themselves where of little use because a suitable rpm tool was needed to use them. At the time the available versions of rpm for a number of non-RPM hosts were broken and randomly maintained.

The solution Chris settled on was to use the spec files and to write a Python based tool that parsed the spec file format creating a shell script that could be run to build the package. The SpecBuilder tool did not build tools or packages unrelated to the RTEMS Project where no suitable spec file was available so another tool was needed. The tools are installed into a build prefix. The prefix is the top of a group of directories containing all the files needed to develop RTEMS applications.

This includes autoconf, automake, assemblers, linkers, compilers, debuggers, standard libraries and RTEMS itself. There is no need to become root or the administrator and we recommend you avoid doing this. The examples shown here will do this. You can use the build prefix to install and maintain different versions of the tools.

Doing this lets you try a new set of tools while not touching your proven working production set of tools. Once you have proven the new tools are working rebuild with the production prefix switching your development to them. We recommend you keep your environment to the bare minimum, particularly the path variable. Using environment variables has been proven over the years to be difficult to manage in production systems.

The RSB assumes your host is set up and the needed packages are installed and configured to work. The RSB by default will install copy the executables to a directory tree under the prefix you supply. To use the tools once finished just set your path to the bin directory under the prefix you use.

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For example, if you want to build a toolchain for 4. The examples in the Quick Start Guide build and install tools in your home directory. The next step is to check if your host is set up correctly. The checking tool will output a list of executable files not found if problems are detected.

Locate those executable files and install them. Docmuentation will need to check each tool to determine if this is an issue. It maybe ok or it could be buggy. 222 you can determine this. The Chapter 3 – Hosts section lists packages you should install for common host operating systems. It maybe worth checking if you have those installed.

If you are unsure how to specify the build set for the architecture you wish to build ask the tool:. When the build runs you will notice the tool fetch the source code from the internet. These files are cached in directies called source and patches. If you run the build again the cached files are used. This is what happened in the shown example. Archiving these directories archives the source you need to recreate the build. This ensures the source is always available for a release.

You can use RTEMS tools to build bare metal component but it binutilx more difficult than with a bare metal tool chain and you need to know what you are doing at a low level. Look in the top level bare directory. If you wish to create and distribute your build or you want to archive a build you can create a tar file.

We term this deploying a build. This is a more advanced method for binary vocumentation and installing of tools. By default the RTEMS Source Builder installs the built packages directly and optionally it can also create a build set tar file or a package tar file per package built.

The source will be downloaded, built, installed and cleaned up. The tar files are created with the full build prefix present bibutils if you follow the examples given in this documentation the path is absolute. This can cause problems if you are installing on a host you do not have super user or administrator rights on because the prefix path may references part you do not have write access too and tar will not extract the files.

You can use the –strip-components option in tar if your host tar application supports it to remove the parts you do not have write access too or you may need to unpack documetnation tar binutila somewhere and copy the file tree from the level you have write access from. Embedding the full prefix path in the tar files lets you know what the prefix is and is recommended. To install you would:. A build set tar file is created by adding –bset-tar-file option to the sb-set-builder command:.

You can also suppress installing the files using the –no-install option. This is useful if your prefix is not accessiable, for example when docujentation Canadian cross compiled tool sets:.

Bnutils package tar file can be created by adding the –pkg-tar-files to the sb-set-builder command. This creates a tar file per package built binutlls the build set:. Build sets socumentation be controlled via the command line to enable and disable various features.

There is no definitive list of build options that can be listed because they are implemented with the configuration scripts. The best way to find what is available is to grep the configuration files.