source: rtems-docs/user/start/development.rst @ 5353914

4.11
Last change on this file since 5353914 was 5353914, checked in by Chris Johns <chrisj@…>, on Mar 20, 2016 at 11:27:52 PM

Updates from user reviews.

  • Property mode set to 100644
File size: 31.9 KB

Development Version

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.. index:: Git

RTEMS provides open access to it's development processes. The project encouages all users to inspect, review, comment and contribute to the code base. The processes described here are the same processes the core development team use when developing and maintaining RTEMS.

Warning

The development version is not for use in production and it can break from time to time.

The following procedure assumes you have installed and configured your host operating. It also assumes you have installed any dependent packages needed when building the tools and the kernel.

You need to select a location to build and install the RTEMS Tool chain and RTEMS. Make sure there is plenty of disk space and a fast disk is recommended. Our procedure will document building and installing the tools in a home directory called :file:`development/rtems`. Using a home directory means you can do this without needing to be root. You can also use :file:`/opt/rtems/build` if you have access to that path.

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The location used to install the tools and kernel is called the prefix. It is best to have a prefix for each different version of RTEMS you are using. If you are using RTEMS 4.11 in production it is not a good to install a development version of 4.12 over the top. A separate prefix for each version avoids this.

The RTEMS tool chain changes less often than the RTEMS kernel. One method of working with development releases is to have a separate prefix for the RTEMS tools and a different one for the RTEMS kernel. You can then update each without interacting with the other. You can also have a number of RTEMS versions available to test with.

This procedure will build a SPARC tool chain.

RTEMS Tools Chain

Clone the RTEMS Source Builder (RSB) repository:

$ cd
$ mkdir -p development/rtems
$ cd development/rtems
$ git clone git://git.rtems.org/rtems-source-builder.git rsb
Cloning into 'rsb'...
remote: Counting objects: 5837, done.
remote: Compressing objects: 100% (2304/2304), done.
remote: Total 5837 (delta 4014), reused 5056 (delta 3494)
Receiving objects: 100% (5837/5837), 2.48 MiB | 292.00 KiB/s, done.
Resolving deltas: 100% (4014/4014), done.
Checking connectivity... done.

Check all the host packages you need are present. Current libraries are not checked and this includes checking for the python development libraries GDB requires:

$ cd rsb
$ ./source-builder/sb-check
RTEMS Source Builder - Check, 4.12 (e645642255cc)
Environment is ok

Build a tool chain for the SPARC architecure. We are using the SPARC architecture because GDB has a good simulator that lets us run and test the samples RTEMS builds by default. The current development version is 4.12 and is on master:

$ cd rtems
$ ../source-builder/sb-set-builder \
    --prefix=/usr/home/chris/development/rtems/4.12 4.12/rtems-sparc
RTEMS Source Builder - Set Builder, 4.12 (e645642255cc)
Build Set: 4.12/rtems-sparc
Build Set: 4.12/rtems-autotools.bset
Build Set: 4.12/rtems-autotools-internal.bset
config: tools/rtems-autoconf-2.69-1.cfg
package: autoconf-2.69-x86_64-linux-gnu-1
Creating source directory: sources
download: ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz -> sources/autoconf-2.69.tar.gz
downloading: sources/autoconf-2.69.tar.gz - 1.8MB of 1.8MB (100%)
building: autoconf-2.69-x86_64-linux-gnu-1
config: tools/rtems-automake-1.12.6-1.cfg
package: automake-1.12.6-x86_64-linux-gnu-1
download: ftp://ftp.gnu.org/gnu/automake/automake-1.12.6.tar.gz -> sources/automake-1.12.6.tar.gz
downloading: sources/automake-1.12.6.tar.gz - 2.0MB of 2.0MB (100%)
Creating source directory: patches
download: https://git.rtems.org/rtems-tools/plain/tools/4.12/automake/automake-1.12.6-bugzilla.redhat.com-1239379.diff -> patches/automake-1.12.6-bugzilla.redhat.com-1239379.diff
downloading: patches/automake-1.12.6-bugzilla.redhat.com-1239379.diff - 408.0 bytes of 408.0 bytes (100%)
building: automake-1.12.6-x86_64-linux-gnu-1
cleaning: autoconf-2.69-x86_64-linux-gnu-1
cleaning: automake-1.12.6-x86_64-linux-gnu-1
Build Set: Time 0:00:17.465024
Build Set: 4.12/rtems-autotools-base.bset
config: tools/rtems-autoconf-2.69-1.cfg
package: autoconf-2.69-x86_64-linux-gnu-1
building: autoconf-2.69-x86_64-linux-gnu-1
reporting: tools/rtems-autoconf-2.69-1.cfg -> autoconf-2.69-x86_64-linux-gnu-1.txt
reporting: tools/rtems-autoconf-2.69-1.cfg -> autoconf-2.69-x86_64-linux-gnu-1.xml
config: tools/rtems-automake-1.12.6-1.cfg
package: automake-1.12.6-x86_64-linux-gnu-1
building: automake-1.12.6-x86_64-linux-gnu-1
reporting: tools/rtems-automake-1.12.6-1.cfg -> automake-1.12.6-x86_64-linux-gnu-1.txt
reporting: tools/rtems-automake-1.12.6-1.cfg -> automake-1.12.6-x86_64-linux-gnu-1.xml
installing: autoconf-2.69-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
installing: automake-1.12.6-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
cleaning: autoconf-2.69-x86_64-linux-gnu-1
cleaning: automake-1.12.6-x86_64-linux-gnu-1
Build Set: Time 0:00:05.358624
Build Set: Time 0:00:22.824422
config: devel/expat-2.1.0-1.cfg
package: expat-2.1.0-x86_64-linux-gnu-1
download: http://downloads.sourceforge.net/project/expat/expat/2.1.0/expat-2.1.0.tar.gz -> sources/expat-2.1.0.tar.gz
  redirect: http://internode.dl.sourceforge.net/project/expat/expat/2.1.0/expat-2.1.0.tar.gz
downloading: sources/expat-2.1.0.tar.gz - 549.4kB of 549.4kB (100%)
building: expat-2.1.0-x86_64-linux-gnu-1
reporting: devel/expat-2.1.0-1.cfg -> expat-2.1.0-x86_64-linux-gnu-1.txt
reporting: devel/expat-2.1.0-1.cfg -> expat-2.1.0-x86_64-linux-gnu-1.xml
config: tools/rtems-binutils-2.26-1.cfg
package: sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1
download: ftp://ftp.gnu.org/gnu/binutils/binutils-2.26.tar.bz2 -> sources/binutils-2.26.tar.bz2
downloading: sources/binutils-2.26.tar.bz2 - 24.4MB of 24.4MB (100%)
download: https://git.rtems.org/rtems-tools/plain/tools/4.12/binutils/binutils-2.26-rtems-aarch64-x86_64.patch -> patches/binutils-2.26-rtems-aarch64-x86_64.patch
downloading: patches/binutils-2.26-rtems-aarch64-x86_64.patch - 3.2kB of 3.2kB (100%)
building: sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1
reporting: tools/rtems-binutils-2.26-1.cfg -> sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1.txt
reporting: tools/rtems-binutils-2.26-1.cfg -> sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1.xml
config: tools/rtems-gcc-6-20160228-newlib-2.3.0.20160226-1.cfg
package: sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1
download: ftp://gcc.gnu.org/pub/gcc/snapshots/6-20160228/gcc-6-20160228.tar.bz2 -> sources/gcc-6-20160228.tar.bz2
downloading: sources/gcc-6-20160228.tar.bz2 - 90.8MB of 90.8MB (100%)
download: ftp://sourceware.org/pub/newlib/newlib-2.3.0.20160226.tar.gz -> sources/newlib-2.3.0.20160226.tar.gz
downloading: sources/newlib-2.3.0.20160226.tar.gz - 16.9MB of 16.9MB (100%)
download: http://www.mpfr.org/mpfr-2.4.2/mpfr-2.4.2.tar.bz2 ->
sources/mpfr-2.4.2.tar.bz2
downloading: sources/mpfr-2.4.2.tar.bz2 - 1.0MB of 1.0MB (100%)
download: http://www.multiprecision.org/mpc/download/mpc-0.8.1.tar.gz -> sources/mpc-0.8.1.tar.gz
downloading: sources/mpc-0.8.1.tar.gz - 532.2kB of 532.2kB (100%)
download: ftp://ftp.gnu.org/gnu/gmp/gmp-4.3.2.tar.bz2 -> sources/gmp-4.3.2.tar.bz2
downloading: sources/gmp-4.3.2.tar.bz2 - 1.8MB of 1.8MB (100%)
building: sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1
reporting: tools/rtems-gcc-6-20160228-newlib-2.3.0.20160226-1.cfg -> sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1.txt
reporting: tools/rtems-gcc-6-20160228-newlib-2.3.0.20160226-1.cfg -> sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1.xml
config: tools/rtems-gdb-7.9-1.cfg
package: sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1
download: http://ftp.gnu.org/gnu/gdb/gdb-7.9.tar.xz -> sources/gdb-7.9.tar.xz
downloading: sources/gdb-7.9.tar.xz - 17.0MB of 17.0MB (100%)
download: https://git.rtems.org/rtems-tools/plain/tools/4.12/gdb/gdb-sim-arange-inline.diff -> patches/gdb-sim-arange-inline.diff
downloading: patches/gdb-sim-arange-inline.diff - 761.0 bytes of 761.0 bytes (100%)
download: https://git.rtems.org/rtems-tools/plain/tools/4.12/gdb/gdb-sim-cgen-inline.diff -> patches/gdb-sim-cgen-inline.diff
downloading: patches/gdb-sim-cgen-inline.diff - 706.0 bytes of 706.0 bytes (100%)
download: https://git.rtems.org/rtems-tools/plain/tools/4.12/gdb/gdb-7.9-aarch64-x86_64.patch -> patches/gdb-7.9-aarch64-x86_64.patch
downloading: patches/gdb-7.9-aarch64-x86_64.patch - 1.7kB of 1.7kB (100%)
building: sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1
reporting: tools/rtems-gdb-7.9-1.cfg -> sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1.txt
reporting: tools/rtems-gdb-7.9-1.cfg -> sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1.xml
config: tools/rtems-tools-4.12-1.cfg
package: rtems-tools-HEAD-1
Creating source directory: sources/git
git: clone: git://git.rtems.org/rtems-tools.git -> sources/git/rtems-tools.git
git: reset: git://git.rtems.org/rtems-tools.git
git: fetch: git://git.rtems.org/rtems-tools.git -> sources/git/rtems-tools.git
git: checkout: git://git.rtems.org/rtems-tools.git => HEAD
git: pull: git://git.rtems.org/rtems-tools.git
building: rtems-tools-HEAD-1
reporting: tools/rtems-tools-4.12-1.cfg -> rtems-tools-HEAD-1.txt
reporting: tools/rtems-tools-4.12-1.cfg -> rtems-tools-HEAD-1.xml
installing: expat-2.1.0-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
installing: sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
installing: sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
installing: sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1 -> /usr/home/chris/development/rtems/4.12
installing: rtems-tools-HEAD-1 -> /usr/home/chris/development/rtems/4.12
cleaning: expat-2.1.0-x86_64-linux-gnu-1
cleaning: sparc-rtems4.12-binutils-2.26-x86_64-linux-gnu-1
cleaning: sparc-rtems4.12-gcc-6-20160228-newlib-2.3.0.20160226-x86_64-linux-gnu-1
cleaning: sparc-rtems4.12-gdb-7.9-x86_64-linux-gnu-1
cleaning: rtems-tools-HEAD-1
Build Set: Time 0:31:09.754219

RTEMS Kernel

We need to set our path to include the RTEMS tools we built in the previous section. The RTEMS tools needs to be first in your path because RTEMS provides specific versions of the autoconf and automake tools. We want to use the RTEMS version and not your host's versions:

$ export PATH=$HOME/development/rtems/4.12/bin:$PATH

Create a new location to build the RTEMS kernel:

$ cd
$ cd development/rtems
$ mkdir kernel
$ cd kernel

Clone the RTEMS respository:

$ git clone git://git.rtems.org/rtems.git rtems
Cloning into 'rtems'...
remote: Counting objects: 483342, done.
remote: Compressing objects: 100% (88974/88974), done.
remote: Total 483342 (delta 390053), reused 475669 (delta 383809)
Receiving objects: 100% (483342/483342), 69.88 MiB | 1.37 MiB/s, done.
Resolving deltas: 100% (390053/390053), done.
Checking connectivity... done.

The developers version of the code from git requires we bootstrap the source code. This is an autoconf and automake bootstrap to create the various files generated by autoconf and automake. RTEMS does not keep these generated files under version control. The bootstrap process is slow so to speed it up the RSB provides a command that can perform the bootstrap in parallel using your available cores. We need to enter the cloned source directory then run the bootsrap commands:

$ cd rtems
$ ./bootstrap -c && ./bootstrap -p && \
            $HOME/development/rtems/rsb/source-builder/sb-bootstrap
removing automake generated Makefile.in files
removing configure files
removing aclocal.m4 files
Generating ./cpukit/dtc/libfdt/preinstall.am
Generating ./cpukit/zlib/preinstall.am
Generating ./cpukit/libdl/preinstall.am
Generating ./cpukit/posix/preinstall.am
Generating ./cpukit/pppd/preinstall.am
Generating ./cpukit/librpc/preinstall.am
Generating ./cpukit/preinstall.am
Generating ./cpukit/sapi/preinstall.am
Generating ./cpukit/score/preinstall.am
Generating ./cpukit/score/cpu/mips/preinstall.am
Generating ./cpukit/score/cpu/sh/preinstall.am
Generating ./cpukit/score/cpu/sparc/preinstall.am
Generating ./cpukit/score/cpu/no_cpu/preinstall.am
Generating ./cpukit/score/cpu/arm/preinstall.am
Generating ./cpukit/score/cpu/m32c/preinstall.am
Generating ./cpukit/score/cpu/moxie/preinstall.am
Generating ./cpukit/score/cpu/v850/preinstall.am
Generating ./cpukit/score/cpu/sparc64/preinstall.am
Generating ./cpukit/score/cpu/or1k/preinstall.am
Generating ./cpukit/score/cpu/i386/preinstall.am
Generating ./cpukit/score/cpu/nios2/preinstall.am
Generating ./cpukit/score/cpu/epiphany/preinstall.am
Generating ./cpukit/score/cpu/m68k/preinstall.am
Generating ./cpukit/score/cpu/lm32/preinstall.am
Generating ./cpukit/score/cpu/powerpc/preinstall.am
Generating ./cpukit/score/cpu/bfin/preinstall.am
Generating ./cpukit/libpci/preinstall.am
Generating ./cpukit/libcrypt/preinstall.am
Generating ./cpukit/rtems/preinstall.am
Generating ./cpukit/telnetd/preinstall.am
Generating ./cpukit/libnetworking/preinstall.a
 ......
Generating ./c/src/lib/libbsp/powerpc/gen5200/preinstall.am
Generating ./c/src/lib/libbsp/powerpc/mpc55xxevb/preinstall.am
Generating ./c/src/lib/libbsp/bfin/TLL6527M/preinstall.am
Generating ./c/src/lib/libbsp/bfin/bf537Stamp/preinstall.am
Generating ./c/src/lib/libbsp/bfin/eZKit533/preinstall.am
Generating ./c/src/librtems++/preinstall.am
Generating ./c/src/libchip/preinstall.am
Generating ./c/src/wrapup/preinstall.am
Generating ./c/src/ada/preinstall.am
RTEMS Source Builder - RTEMS Bootstrap, 4.12 (e645642255cc modified)
  1/139: autoreconf: configure.ac
  2/139: autoreconf: cpukit/configure.ac
  3/139: autoreconf: tools/cpu/configure.ac
  4/139: autoreconf: tools/cpu/generic/configure.ac
  5/139: autoreconf: tools/cpu/sh/configure.ac
  6/139: autoreconf: tools/cpu/nios2/configure.ac
  7/139: autoreconf: tools/build/configure.ac
  8/139: autoreconf: doc/configure.ac
 ......
124/139: autoreconf: c/src/make/configure.ac
125/139: autoreconf: c/src/librtems++/configure.ac
126/139: autoreconf: c/src/ada-tests/configure.ac
127/139: autoreconf: testsuites/configure.ac
128/139: autoreconf: testsuites/libtests/configure.ac
129/139: autoreconf: testsuites/mptests/configure.ac
130/139: autoreconf: testsuites/fstests/configure.ac
131/139: autoreconf: testsuites/sptests/configure.ac
132/139: autoreconf: testsuites/tmtests/configure.ac
133/139: autoreconf: testsuites/smptests/configure.ac
134/139: autoreconf: testsuites/tools/configure.ac
135/139: autoreconf: testsuites/tools/generic/configure.ac
136/139: autoreconf: testsuites/psxtests/configure.ac
137/139: autoreconf: testsuites/psxtmtests/configure.ac
138/139: autoreconf: testsuites/rhealstone/configure.ac
139/139: autoreconf: testsuites/samples/configure.ac
Bootstrap time: 0:02:47.398824

We build RTEMS in a directory outside of the source tree we have just cloned and bootstrapped. You cannot build RTEMS while in the source tree. Lets create a suitable directory using the name of the BSP we are going to build:

$ cd ..
$ mkdir erc32
$ cd erc32

Configure RTEMS using the configure command. We use a full path to configure so the object files built contain the absolute path of the source files. If you are source level debugging you will be able to access the source code to RTEMS from the debugger. We will build for the erc32 BSP with POSIX enabled and the networking stack disabled:

$ $HOME/development/rtems/kernel/rtems/configure --prefix=$HOME/development/rtems/4.12 \
                   --target=sparc-rtems4.12 --enable-rtemsbsp=erc32 --enable-posix \
                   --disable-networking
checking for gmake... no
checking for make... make
checking for RTEMS Version... 4.11.99.0
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... sparc-unknown-rtems4.12
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking that generated files are newer than configure... done
 ......
checking target system type... sparc-unknown-rtems4.12
checking rtems target cpu... sparc
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for sparc-rtems4.12-strip... sparc-rtems4.12-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
target architecture: sparc.
available BSPs: erc32.
'make all' will build the following BSPs: erc32.
other BSPs can be built with 'make RTEMS_BSP="bsp1 bsp2 ..."'
config.status: creating Makefile

Build RTEMS using two cores:

$ make -j 2
Making all in tools/build
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/build'
make  all-am
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/build'
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT cklength.o -MD -MP -MF .deps/cklength.Tpo -c -o cklength.o /home/chris/development/rtems/kernel/rtems/tools/build/cklength.c
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT eolstrip.o -MD -MP -MF .deps/eolstrip.Tpo -c -o eolstrip.o /home/chris/development/rtems/kernel/rtems/tools/build/eolstrip.c
mv -f .deps/cklength.Tpo .deps/cklength.Po
mv -f .deps/eolstrip.Tpo .deps/eolstrip.Po
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT compat.o -MD -MP -MF .deps/compat.Tpo -c -o compat.o /home/chris/development/rtems/kernel/rtems/tools/build/compat.c
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT packhex.o -MD -MP -MF .deps/packhex.Tpo -c -o packhex.o /home/chris/development/rtems/kernel/rtems/tools/build/packhex.c
mv -f .deps/compat.Tpo .deps/compat.Po
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT unhex.o -MD -MP -MF .deps/unhex.Tpo -c -o unhex.o /home/chris/development/rtems/kernel/rtems/tools/build/unhex.c
mv -f .deps/packhex.Tpo .deps/packhex.Po
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT rtems-bin2c.o -MD -MP -MF .deps/rtems-bin2c.Tpo -c -o rtems-bin2c.o /home/chris/development/rtems/kernel/rtems/tools/build/rtems-bin2c.c
mv -f .deps/unhex.Tpo .deps/unhex.Po
gcc -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/tools/build     -g -O2 -MT binpatch.o -MD -MP -MF .deps/binpatch.Tpo -c -o binpatch.o /home/chris/development/rtems/kernel/rtems/tools/build/binpatch.c
mv -f .deps/rtems-bin2c.Tpo .deps/rtems-bin2c.Po
gcc  -g -O2   -o cklength cklength.o
mv -f .deps/binpatch.Tpo .deps/binpatch.Po
gcc  -g -O2   -o eolstrip eolstrip.o compat.o
gcc  -g -O2   -o packhex packhex.o
gcc  -g -O2   -o rtems-bin2c rtems-bin2c.o compat.o
gcc  -g -O2   -o unhex unhex.o compat.o
gcc  -g -O2   -o binpatch binpatch.o
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/build'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/build'
Making all in tools/cpu
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
Making all in generic
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[2]: Nothing to be done for 'all-am'.
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
Making all in testsuites/tools
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools'
Making all in generic
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools/generic'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools/generic'
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools'
make[2]: Nothing to be done for 'all-am'.
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/testsuites/tools'
Making all in sparc-rtems4.12/c
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/c'
Making all in .
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/c'
Configuring RTEMS_BSP=erc32
checking for gmake... no
checking for make... make
checking build system type... x86_64-pc-linux-gnu
checking host system type... sparc-unknown-rtems4.12
 ......
sparc-rtems4.12-gcc -B../../../../../erc32/lib/ -specs bsp_specs -qrtems -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/nsecs -I.. -I/home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/../support/include   -mcpu=cypress -O2 -g -ffunction-sections -fdata-sections -Wall -Wmissing-prototypes -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs -MT init.o -MD -MP -MF .deps/init.Tpo -c -o init.o /home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/nsecs/init.c
sparc-rtems4.12-gcc -B../../../../../erc32/lib/ -specs bsp_specs -qrtems -DHAVE_CONFIG_H -I. -I/home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/nsecs -I.. -I/home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/../support/include   -mcpu=cypress -O2 -g -ffunction-sections -fdata-sections -Wall -Wmissing-prototypes -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs -MT empty.o -MD -MP -MF .deps/empty.Tpo -c -o empty.o /home/chris/development/rtems/kernel/rtems/c/src/../../testsuites/samples/nsecs/empty.c
mv -f .deps/empty.Tpo .deps/empty.Po
mv -f .deps/init.Tpo .deps/init.Po
sparc-rtems4.12-gcc -B../../../../../erc32/lib/ -specs bsp_specs -qrtems -mcpu=cypress -O2 -g -ffunction-sections -fdata-sections -Wall -Wmissing-prototypes -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs -Wl,--gc-sections  -mcpu=cypress   -o nsecs.exe init.o empty.o
sparc-rtems4.12-nm -g -n nsecs.exe > nsecs.num
sparc-rtems4.12-size nsecs.exe
   text    data     bss     dec     hex filename
 121392    1888    6624  129904   1fb70 nsecs.exe
cp nsecs.exe nsecs.ralf
make[6]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites/samples/nsecs'
make[5]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites/samples'
make[4]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites/samples'
make[4]: Entering directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites'
make[4]: Nothing to be done for 'all-am'.
make[4]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites'
make[3]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32/testsuites'
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/ c/erc32'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/c'
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32'

All that remains to be done is to install the kernel. Installing RTEMS copies the API headers and architecture specific libraries to a locaiton under the prefix you provide. You can install any number of BSPs under the same prefix. We recommend you have a separate prefix for different versions of RTEMS. Do not mix versions of RTEMS under the same prefix. Make installs RTEMS with the following command:

$ make install
Making install in tools/build
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/build'
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/build'
/bin/mkdir -p '/home/chris/development/rtems/4.12/bin'
/usr/bin/install -c cklength eolstrip packhex unhex rtems-bin2c '/home/chris/development/rtems/4.12/bin'
/bin/mkdir -p '/home/chris/development/rtems/4.12/bin'
/usr/bin/install -c install-if-change '/home/chris/development/rtems/4.12/bin'
make[2]: Nothing to be done for 'install-data-am'.
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/build'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/build'
Making install in tools/cpu
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
Making install in generic
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[3]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[3]: Nothing to be done for 'install-exec-am'.
make[3]: Nothing to be done for 'install-data-am'.
make[3]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu/generic'
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[3]: Entering directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[3]: Nothing to be done for 'install-exec-am'.
make[3]: Nothing to be done for 'install-data-am'.
make[3]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/tools/cpu
 ......
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32/sparc-rtems4.12/c'
make[1]: Entering directory '/home/chris/development/rtems/kernel/erc32'
make[2]: Entering directory '/home/chris/development/rtems/kernel/erc32'
make[2]: Nothing to be done for 'install-exec-am'.
/bin/mkdir -p '/home/chris/development/rtems/4.12/make'
/usr/bin/install -c -m 644 /home/chris/development/rtems/kernel/rtems/make/main.cfg /home/chris/development/rtems/kernel/rtems/make/leaf.cfg '/home/chris/development/rtems/4.12/make'
/bin/mkdir -p '/home/chris/development/rtems/4.12/share/rtems4.12/make/Templates'
/usr/bin/install -c -m 644 /home/chris/development/rtems/kernel/rtems/make/Templates/Makefile.dir /home/chris/development/rtems/kernel/rtems/make/Templates/Makefile.leaf /home/chris/development/rtems/kernel/rtems/make/Templates/Makefile.lib '/home/chris/development/rtems/4.12/share/rtems4.12/make/Templates'
/bin/mkdir -p '/home/chris/development/rtems/4.12/make/custom'
/usr/bin/install -c -m 644 /home/chris/development/rtems/kernel/rtems/make/custom/default.cfg '/home/chris/development/rtems/4.12/make/custom'
make[2]: Leaving directory '/home/chris/development/rtems/kernel/erc32'
make[1]: Leaving directory '/home/chris/development/rtems/kernel/erc32'

Contributing Patches

RTEMS welcomes fixes to bugs and new features. The RTEMS Project likes to have bugs fixed against a ticket created on our :r:url:`devel`. Please raise a ticket if you have a bug. Any changes that are made can be tracked against the ticket. If you want to add a new a feature please post a message to :r:list:`devel` describing what you would like to implement. The RTEMS maintainer will help decide if the feature is in the best interest of the project. Not everything is and the maintainers need to evalulate how much effort it is to maintain the feature. Once accepted into the source tree it becomes the responsibility of the maintainers to keep the feature updated and working.

??

Changes to the source tree are tracked using git. If you have not made changes and enter the source tree and enter a git status command you will see nothing has changed:

$ cd ../rtems
$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
nothing to commit, working directory clean

We will make a change to the source code. In this example I change the help message to the RTEMS shell's halt command. Running the same git status command reports:

$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)
        modified:   cpukit/libmisc/shell/main_halt.c
no changes added to commit (use "git add" and/or "git commit -a")

As an example I have a ticket open and the ticket number is 9876. I commit the change with the follow git command:

$ git commit cpukit/libmisc/shell/main_halt.c

An editor is opened and I enter my commit message. The first line is a title and the following lines form a body. My message is:

shell: Add more help detail to the halt command.
Closes #9876.

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# Explicit paths specified without -i or -o; assuming --only paths...
#
# Committer: Chris Johns <chrisj@rtems.org>
#
# On branch master
# Your branch is up-to-date with 'origin/master'.
#
# Changes to be committed:
#       modified:   cpukit/libmisc/shell/main_halt.c

When you save and exit the editor git will report the commit's status:

$ git commit cpukit/libmisc/shell/main_halt.c
[master 9f44dc9] shell: Add more help detail to the halt command.
 1 file changed, 1 insertion(+), 1 deletion(-)

You can either email the patch to :r:list:`devel` with the following git command:

?
$ git send-email --to=devel@rtems.org -1
 <add output here>

Or you can ask git to create a patch file using:

$ git format-patch -1
0001-shell-Add-more-help-detail-to-the-halt-command.patch

This patch can be attached to a ticket.

Note: See TracBrowser for help on using the repository browser.