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<p class="MsoPlainText">Hi,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I’m developing some software that uses RTEMS on an Aeroflex Gaisler LEON3 processor that is running on a Pender GR-CPCI-AX2000 development board.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I use the following statement to compile my source code : sparc-rtems-gcc -O2 -g sourcecode.c -o outputexecutable.exe<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">My image files always seem to be rather large (about 150Kbytes), even for rather simple code – is this normal ?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">So for example, I modified the provided sample source file rtems-hello.c to look like the following :<o:p></o:p></p>
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<p class="MsoPlainText" style="border:none;padding:0cm"><o:p> </o:p></p>
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<p class="MsoPlainText">#include <rtems.h><o:p></o:p></p>
<p class="MsoPlainText">/* configuration information */<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#define CONFIGURE_INIT<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#include <bsp.h> /* for device driver prototypes */<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">rtems_task Init( rtems_task_argument argument); /* forward declaration needed */<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">/* configuration information */<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER<o:p></o:p></p>
<p class="MsoPlainText">#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#define CONFIGURE_MAXIMUM_TASKS 4<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#define CONFIGURE_RTEMS_INIT_TASKS_TABLE<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#define CONFIGURE_EXTRA_TASK_STACKS (3 * RTEMS_MINIMUM_STACK_SIZE)<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#include <rtems/confdefs.h><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">#include <stdlib.h><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">rtems_task Init(rtems_task_argument ignored)<o:p></o:p></p>
<p class="MsoPlainText">{<o:p></o:p></p>
<p class="MsoPlainText"> exit( 0 );<o:p></o:p></p>
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<p class="MsoPlainText" style="border:none;padding:0cm">}<o:p></o:p></p>
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<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Yet, when I compile the code and look at its size using sparc-rtems-size it comes out as :<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">sparc-rtems-size rtems-hello.exe <o:p></o:p></p>
<p class="MsoPlainText"> text data bss dec hex filename<o:p></o:p></p>
<p class="MsoPlainText">136736 4068 4736 145540 23884 rtems-hello.exe<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I do not understand why the image size is so big, given the lack of the visible code’s complexity. Is everything compiled in by default? Do I need to explicitly remove the bits from RTEMs that I don’t need? How can I reduce the image
size?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Any help or guidance would be much appreciated.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thanks in advance,<o:p></o:p></p>
<p class="MsoPlainText">Lee <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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