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boards/lm3s6965-ek: Disable System V message queues in qemu-protected. - #21321
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The kernel half of the qemu-protected flash is full again: the kernel image is 288 bytes larger than its 128 KiB (Arm GNU 13.2), and CI fails with "region `kflash' overflowed". Since msgget(), msgctl(), msgsnd() and msgrcv() became system calls, the system call table links their code into the kernel of every protected build. No program of this configuration uses System V message queues. Disable them. The kernel image is 1640 bytes smaller. Assisted-by: Claude Code:claude-opus-5-5 Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>
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November 1, 2026 09:11
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Summary
lm3s6965-ek:qemu-protectedgives the kernel image the first 128 KiB of flash. On master the kernel image does not fit any more: CI fails inarm-tiwithregion `kflash' overflowed by 280 bytesfor PRs that change no code of this configuration (#21146).Since #21105,
msgget(),msgctl(),msgsnd()andmsgrcv()are system calls, so the system call table links their code into the kernel of every protected build. No program of this configuration uses System V message queues. This PR setsCONFIG_DISABLE_MQUEUE_SYSV=y.Impact
lm3s6965-ek:qemu-protectedonly. CI builds this configuration (arm-ti) and runs nothing on it. No program in nuttx-apps usesmsgget().Testing
Arm GNU Toolchain 13.2.1 (the version CI uses), Make build, nuttx master 1080f14, nuttx-apps master b86baecee. Bytes used of 131072 in each half:
The defconfig is unchanged by
make savedefconfig.tools/checkpatch.sh -c -u -m -gpasses. I have not run the configuration under QEMU.