<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>This section helps to protect the code and read-only sections from write access via the MMU. I would simply avoid generating bin files, they are next to useless.<br></div><div><br></div><div><span id="zwchr" data-marker="__DIVIDER__">----- Am 27. Mai 2015 um 17:58 schrieb Ken Liao <ken.i18n@gmail.com>:<br></span></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><div dir="ltr">Dear all,<br><div> I'm using Beaglebone BSP and the hello world example binary generated from 71600 bytes .text section to 1055088 bytes </div><div>after 'arm-rtems4.11-objcopy -S -O binary hello.exe hello.bin'.</div><div> I assume the issue is cause by .rwbarrier section.<br></div><br><div> arm-rtems4.11-readelf -e hello.ralf show:</div><div> </div><div><div>Section Headers:</div><div> [Nr] Name Type Addr Off Size ES Flg Lk Inf Al</div><div> [ 0] NULL 00000000 000000 000000 00 0 0 0</div><div> [ 1] .start PROGBITS 80000000 000094 000384 00 AX 0 0 4</div><div><i><b> [ 2] .text PROGBITS 80000384 000418 <span style="background-color: #00ff00; text-decoration: underline;" data-mce-style="background-color: #00ff00; text-decoration: underline;">0108a0</span> 00 WAX 0 0 4</b></i></div><div> [ 3] .init PROGBITS 80010c24 010cb8 000018 00 AX 0 0 4</div><div> [ 4] .fini PROGBITS 80010c3c 010cd0 000018 00 AX 0 0 4</div><div> [ 5] .rodata PROGBITS 80010c54 010ce8 000b0c 00 A 0 0 4</div><div> [ 6] .ARM.exidx ARM_EXIDX 80011760 0117f4 000008 00 AL 2 0 4</div><div> [ 7] .eh_frame PROGBITS 80011768 0117fc 000048 00 A 0 0 4</div><div> [ 8] .init_array INIT_ARRAY 800117b0 011844 000004 00 WA 0 0 4</div><div> [ 9] .fini_array FINI_ARRAY 800117b4 011848 000004 00 WA 0 0 4</div><div> [10] .jcr PROGBITS 800117b8 01184c 000004 00 WA 0 0 4</div><div> <b>[11] .rwbarrier NOBITS 800117bc 011850 <span style="background-color: #ff0000; text-decoration: underline;" data-mce-style="background-color: #ff0000; text-decoration: underline;">0ee844</span> 00 WA 0 0 1</b></div><div> [12] .vector NOBITS 80100000 011850 001400 00 WA 0 0 1</div><div> [13] .data PROGBITS 80101400 011860 000570 00 WA 0 0 8</div><div> [14] .bss NOBITS 80101980 011dd0 001d90 00 WA 0 0 32</div><div> [15] .work NOBITS 80103710 011dd0 fafc8f0 00 WA 0 0 1</div></div><br><br><div>rtems/c/src/lib/libbsp/arm/beagle/startup/linkcmds.beagle:</div><div>bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1M;<br></div><br><div>rtems/c/src/lib/libbsp/arm/shared/startup/linkcmds.base:<br></div><div><div><span class="" style="white-space: pre;" data-mce-style="white-space: pre;"> </span>.rwbarrier : ALIGN_WITH_INPUT {</div><div><span class="" style="white-space: pre;" data-mce-style="white-space: pre;"> </span>. = ALIGN (bsp_section_rwbarrier_align);</div><div><span class="" style="white-space: pre;" data-mce-style="white-space: pre;"> </span>} > REGION_DATA AT > REGION_DATA</div></div><br><div>So, what's the role of .rwbarrier section? Can i remove the section?</div><br><div><pre style="white-space: pre-wrap; color: #000000;" data-mce-style="white-space: pre-wrap; color: #000000;">Best regards,
Ken Liao</pre></div></div><br>_______________________________________________<br>users mailing list<br>users@rtems.org<br>http://lists.rtems.org/mailman/listinfo/users<br></blockquote></div></div></body></html>