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Startup-Program: Which parts are checksumed?

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Applicable Environment

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Topic: Startup-Program: Which part is checksumed?
SDP: 6.4.1
Target: Any supported target

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Recommendation

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If we look at the image_scan routine in ipl/lib, we normally do 2 checksum, one is for the startup, and then for the image, which should include the whole ifs-startup.

Being said that, some bsp-user might actually skip this step to not do chksum.

if (checksum (start, startup_hdr.startup_size) != 0){
continue;
}

if (checksum (start+startup_hdr.startup_size,
startup_hdr.stored_size-startup_hdr.startup_size) != 0)

continue;

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NOTE: This entry has been validated against the SDP version listed above. Use caution when considering this advice for any other SDP version. For supported releases, please reach out to QNX Technical Support if you have any questions/concerns.

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