[PATCH v3] Add support for Linux/no-mmu with vfork

[Dmitry V. Levin]

On Wed, Oct 07, 2009 at 04:10:53AM -0400, Mike Frysinger wrote:
> Systems that lack a MMU cannot use fork() to create the child process.
> First we detect if the toolchain has the fork() symbol and if it does not,
> we just always use vfork().  If it does, then we try that first.  If it
> fails due to ENOSYS, we fall back to using vfork().

I wonder is there any way to implement this without runtime penalty for
systems where fork() never returns ENOSYS?


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