No mkdir in glibgloss/syscall.h? (Was:Re: RFA: Add Epiphany newlib & libgloss port)
Sun Nov 6 22:48:00 GMT 2011
On Sunday 06 November 2011 09:35:36 Joern Rennecke wrote:
> Quoting Jim Meyering <email@example.com>:
> > stat always succeeds. Even with a very rudimentary file system,
> > shouldn't
> > stat be able to fail with ENOENT, EFAULT, ENAMETOOLONG, ENOTDIR, etc?
> > fstat always succeeds. What about EBADF, EFAULT, etc.?
> The file system would be the host file system of the simulator. However,
> there is currently no interface for stat in the simulator.
i'm jumping in in the middle here, but i know stat() works in the sim. it's a
bit undocumented to be sure, but support is there.
check out sim/bfin/interp.c and look at the stat_map defines. set your
callback's stat_map pointer to the string layout for your port before calling
the common cb_syscall(), and that'll take care of the rest for you.
> I thought using libgloss/syscall.h would be a good choice for a bare-metal
it'd be nice if we could convert everyone over to that. new ports at least
should be using that by default.
also note that we need to stay in sync with include/gdb/callback.h
> However, one thing I'd also like to get from such an interface is mkdir -
> that's needed for fully-functional profiling with gcc, otherwise it will
> only work if the profile output pathname is in an existing directory.
> Can we add mkdir to libgloss/syscalls.h ?
> Or is every port that needs more that what's provided there supposed to
> roll their own?
i'm all for adding mkdir to libgloss/syscall.h and extending
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