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Neither of these wants fork() semantics. Both reach for fork() only to put work in the background, and each has a NuttX-native way to do that, so neither needs a fork primitive at all -- which matters once apache/nuttx#19562 makes ARCH_HAVE_FORK conditional on the architecture implementing POSIX fork(). netutils/dropbear: the port already routes every fork-then-exec through vfork(), because sysoptions.h selects DROPBEAR_VFORK when HAVE_FORK is undefined and the port leaves it undefined. spawn_command() in dbutil.c and both call sites in scp.c follow that switch. The one exception is the daemon() fallback that compat.c compiles under #ifndef HAVE_DAEMON, which calls fork() directly and bypasses it. NuttX provides daemon() in libs/libc/unistd/lib_daemon.c and declares it in unistd.h, so the fallback is redundant; define HAVE_DAEMON alongside the HAVE_STRLCAT and HAVE_STRLCPY entries that are there for exactly the same reason. The code was unreachable in any case -- the port hands svr_getopts() an argv containing -F, so svr_opts.forkbg is always zero and dropbear never calls daemon() at all. testing/drivers/nand_sim: forked so that the parent could return to the shell while the child registered the MTD device and slept forever. Nothing from before the fork is used after it, so the child is a self-contained entry point, and task_create() expresses that directly. The emulator body moves into nand_sim_daemon() unchanged. TESTING_NAND_SIM therefore needs no fork dependency, and the two sim configurations that enable it keep working whatever ARCH_HAVE_FORK is set to. Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com> |
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| nand_sim_main.c | ||