jerpelea opened a new pull request, #20285:
URL: https://github.com/apache/nuttx/pull/20285
## Summary
Switch every rv-virt (qemu-rv) flat-build defconfig whose init entry point
was
nsh_main to nxinit (init_main): citest, citest64, fb, fb64, flats, flats64,
leds, leds64, leds64_rust, leds64_zig, libcxx, libcxx64, lvgl64_vector,
netnsh,
netnsh64, netnsh64_smp, netnsh_smp, nsh, nsh64, python, smp, smp64, virt_nsh,
plus pnsh/pnsh64 (CONFIG_BUILD_PROTECTED=y) — 25 configs total. nsh now runs
as a "console sh" service started by init.rc instead of being the top-level
init task, matching the pattern already used by boards/arm/qemu-armv7a,
boards/arm64/qemu-armv8a and boards/sim.
elf (entrypoint elf_main) and the 11 kernel-build configs
(CONFIG_INIT_FILEPATH="/system/bin/init") are out of scope and untouched.
Each switched defconfig only gains the nxinit-essential keys (minimal delta,
regenerated with make savedefconfig): CONFIG_INIT_ENTRYPOINT="init_main",
CONFIG_SYSTEM_NXINIT=y (+ its deps EXPERIMENTAL, LIBC_EXECFUNCS,
SCHED_CHILD_STATUS), CONFIG_ETC_ROMFS=y/CONFIG_FS_ROMFS=y to ship
init.rc. Board changes: new src/etc/init.d/init.rc, Makefile/CMakeLists.txt
to ship it via ROMFS, and a CONFIG_FS_BINFS-gated
mount(NULL, CONFIG_PATH_INITIAL, "binfs", ...) in qemu_rv_boardinit.c so
posix_spawnp("sh") can resolve the builtin. CONFIG_PATH_INITIAL is left at
its pre-existing "/system/bin" and binfs is
mounted at that same CONFIG_PATH_INITIAL path, so no defconfig needs a
PATH_INITIAL change.
smp/smp64 additionally re-enable binfmt (they had CONFIG_DEFAULT_SMALL=y
pulling
in CONFIG_BINFMT_DISABLE=y, which would block LIBC_EXECFUNCS→SYSTEM_NXINIT).
pnsh/pnsh64 rely on the boardctl(BOARDIOC_BUILTINS) hand-off; see the second
commit.
## Impact
RELEASE
## Testing
CI
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