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(still) Need some help with translators
From: |
Svante Signell |
Subject: |
(still) Need some help with translators |
Date: |
Tue, 06 Nov 2012 23:48:12 +0100 |
Hi,
Still confused bu at a higher level, I need some further help to grasp
how to replace a passive/active translator.
First a question related to the io_select() call in
eglibc-2.13/hurd/hurdselect.c. I was assuming that the corresponding
S_io_select() implementation was from pflocal.c, but adding print
statements of trying to set a breakpoint in gdb does not hit that code.
(And trying to step into the io_select() call in gdb makes it freeze).
1) In hurd there are a number of *S_io_select() implementations, how to
find which one is executed by the call in hurdselect.c? Grepping through
the hurd source code shows:
boot/boot.c:S_io_select
pfinet/io-ops.c:S_io_select
pflocal/io.c:S_io_select <- I assumed this was the one, right or wrong?
console-client/trans.c:netfs_S_io_select
libdiskfs/io-select.c:diskfs_S_io_select
libtreefs/s-io.c:treefs_S_io_select
libtrivfs/io-select.c:trivfs_S_io_select
pfinet/tunnel.c:trivfs_S_io_select
random/random.c:trivfs_S_io_select
storeio/io.c:trivfs_S_io_select
term/users.c:trivfs_S_io_select
trans/fifo.c:trivfs_S_io_select <- Maybe this is the one?
firmlink.c:trivfs_S_io_select
hello-mt.c: trivfs_S_io_select
trans/hello.c: trivfs_S_io_select
trans/new-fifo.c:trivfs_S_io_select
trans/null.c:trivfs_S_io_select
trans/streamio.c:trivfs_S_io_select
You also have these _Xio_select definitions created by the build:
build/boot/ioServer.c:mig_internal void _Xio_select
build/libdiskfs/ioServer.c:mig_internal void _Xio_select
build/libnetfs/ioServer.c:mig_internal void _Xio_select
build/libtrivfs/ioServer.c:mig_internal void _Xio_select
build/pfinet/ioServer.c:mig_internal void _Xio_select
build/pflocal/ioServer.c:mig_internal void _Xio_select
My guess is that they are related to the mach interface, via MIG, to the
the corresponding RPC_* files generated by the glibc build.
Maybe I missed some of the definitions, never mind. I still cannot yet
find the Hurd code corresponding to the call in hurdselect.c.
I know Samuel wrote som stuff in rpc.mdwn, but things are still not
crystal clear (to me).
2) To replace an active translator /hurd/pflocal with a modified one the
following questions arise:
a) How to find out if the translator is both passive and active:
pflocal is a passive translator:
#> showtrans /servers/socket/1
/hurd/pflocal
b) How to find out if there is also an active running?
#> settrans --help
does not give any guidance, neither does
#> showtrans --help
Killing the process containing /hurd/pflocal as suggested by Samuel on
IRC freezes the ssh connection, break out from ssh and log in again (or
use the console) -> The passive translator starts again!
c) How to get rid of the active translator?
#> settrans -f /servers/socket/1 ??
d) Trying to replace the old active translator without removing the old
one:
#> settrans -a /servers/socket/1 /hurd/pflocal.new
settrans: /servers/socket/1: Device or resource busy
etc...
Help please.
- (still) Need some help with translators,
Svante Signell <=
- Re: (still) Need some help with translators, Samuel Thibault, 2012/11/06
- Re: (still) Need some help with translators, Svante Signell, 2012/11/07
- Re: (still) Need some help with translators, Richard Braun, 2012/11/07
- Re: (still) Need some help with translators, Samuel Thibault, 2012/11/07
- Re: (still) Need some help with translators, Richard Braun, 2012/11/07
- Re: (still) Need some help with translators, Thomas Schwinge, 2012/11/07
- Re: (still) Need some help with translators, Samuel Thibault, 2012/11/07
- Re: (still) Need some help with translators, Svante Signell, 2012/11/07
- Re: (still) Need some help with translators, Samuel Thibault, 2012/11/07
- Re: (still) Need some help with translators, Samuel Thibault, 2012/11/07