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Migrating a MIPS BSP to 6.4.1

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Applicable Environment

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Topic: Migrating MIPS BSP
SDP: 6.4.1
Host: Any supported host

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Recommendation

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The MIPS ABI was changed in Momentics 6.4.1. Due to the incompatibilities between the old and new ABI's, the version of the runtime linker was incremented. Binaries built in Momentics 6.4.1 will now require ldqnx.so.3.

NOTE: This change only affects MIPS. All other architectures continue to use ldqnx.so.2.

If you are using a BSP released prior to Momentics 6.4.1, you may need to make the following modification to your build script:

- procmgr_symlink ../../proc/boot/libc.so.3 /usr/lib/ldqnx.so.2
+ procmgr_symlink ../../proc/boot/libc.so.3 /usr/lib/ldqnx.so.3

Attempting to use 6.4.1 binaries without ldqnx.so.3 present will result in output similar to this on boot:

Unable to start "devf-generic" (83)

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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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