RTEMS 4.9.6 On-Line Library

Installing GDB Without RPM

Getting Started with RTEMS

4.2.9: Installing GDB Without RPM

NOTE: This step is NOT required if prebuilt executables for the GDB were installed and they meet your target interface requirements.

GDB supports many configurations but requires some means of communicating between the host computer and target board. This communication can be via a serial port, Ethernet, BDM, or ROM emulator. The communication protocol can be the GDB remote protocol or GDB can talk directly to a ROM monitor. This setup is target board specific. Some of the configurations that have been successfully used with RTEMS applications are:

BDM with ColdFire, 683xx, MPC860 CPUs
Motorola Mxxxbug found on M68xxx VME boards
Motorola PPCbug found on PowerPC VME, CompactPCI, and MTX boards
ARM based Cogent EDB7312
PC's using various Intel and AMD CPUs including i386, i486, Pentium and above, and Athlon
PowerPC Instruction Simulator in GDB (PSIM)
MIPS Instruction Simulator in GDB (JMR3904)
Sparc Instruction Simulator in GDB (SIS)
Sparc Instruction Simulator (TSIM)

GDB is currently RTEMS thread/task aware only if you are using the remote debugging support via Ethernet. These are configured using gdb targets of the form CPU-RTEMS. Note the capital RTEMS.

It is recommended that when toolset binaries are available for your particular host, that they be used. Prebuilt binaries are much easier to install but in the case of gdb may or may not include support for your particular target board.

The following example illustrates the invocation of configure and make to build and install gdb-<VERSION> for the m68k-rtems4.9 target:

mkdir b-gdb
cd b-gdb
../gdb-<VERSION>/configure --target=m68k-rtems4.9 \
  --prefix=/opt/rtems-4.9
make all
make info
make install

For some configurations, it is necessary to specify extra options to configure to enable and configure option components such as a processor simulator. The following is a list of configurations for which there are extra options:

powerpc-rtems4.9: --enable-sim --enable-sim-powerpc --enable-sim-timebase --enable-sim-hardware
sparc-rtems4.9: --enable-sim

After gdb-<VERSION> is built and installed the build directory b-gdb may be removed.

For more information on the invocation of configure, please refer to the documentation for gdb-<VERSION> or invoke the gdb-<VERSION> configure command with the --help option.

Getting Started with RTEMS