RTEMS Source Builder | RISC-V/GCC 15: Newlib is built allowing unaligned accesses (#144)
Chris Johns (@chris)
gitlab at rtems.org
Sun Nov 9 21:16:29 UTC 2025
Chris Johns commented on a discussion: https://gitlab.rtems.org/rtems/tools/rtems-source-builder/-/issues/144#note_135836
The User manual has the [Machine Flags and ABI](https://docs.rtems.org/docs/main/user/exe/executables.html#machine-flags-and-abi) section and it says all code must conform to the same ABI. The audit of any executable can be done with the `rtems-exeinfo` tool and I encourage its use during development and for production released executables. It is the only way you can be 100% certain what the final ABI configuration is.
I believe alignment is an ABI level constraint and so it falls under the requirement all ABI flags must be the same. I think attempts to bend or vary this will only add complexity.
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View it on GitLab: https://gitlab.rtems.org/rtems/tools/rtems-source-builder/-/issues/144#note_135836
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