Re: [PATCH] Add extra 'info os' information types for Linux (trunk and 7.4)

[Stan Shebs <stanshebs at earthlink dot net>]

Here is a third revision of the 'info os' additions for Linux; it rolls 
up Kwok's original patch plus requested edits, plus a few more comments 
and tweaks.  I plan to commit this in a day or so, if there are no 
objections.

I'd also like to get this pushed into 7.4; although it's getting late in 
the release cycle, this code is purely Linux-native and does not have 
any effect outside of 'info os'.  The urgency is partly due to snafu on 
my part - Kwok originally posted this patch in October - and partly due 
to interdependency with Eclipse, who is doing GUI for these commands.  
(And yes, there is an approved-but-uncommitted MI patch connected with 
this, that I'll be pushing soon.)

Stan

2011-12-26  Stan Shebs <stan@codesourcery.com>
        Kwok Cheung Yeung <kcy@codesourcery.com>

    * NEWS: Describe new info os commands.
    * common/linux-osdata.c (PID_T, TIME_T): Define.
    (MAX_PID_T_STRLEN): New.
    (linux_common_core_of_thread): Add comment.  Change to use PID_T and
    MAX_PID_T_STRLEN.
    (command_from_pid): Add comment.  Change to use PID_T.
    (commandline_from_pid):  Change to use PID_T.
    (user_from_pid): Add comment.
    (get_process_owner): Add comment. Change to use PID_T and
    MAX_PID_T_STRLEN.
    (get_number_of_cpu_cores): Add comment.
    (get_cores_used_by_process): Add comment.  Change to use PID_T and
    MAX_PID_T_STRLEN.
    (linux_xfer_osdata_processes): Change to use PID_T and
    MAX_PID_T_STRLEN.
    (compare_processes): New function.
    (linux_xfer_osdata_processgroups): New function.
    (linux_xfer_osdata_threads): Change to use PID_T.
    (linux_xfer_osdata_fds): New function.
    (format_socket_state, print_sockets): New functions.
    (union socket_addr): New union.
    (linux_xfer_osdata_isockets): New function.
    (time_from_time_t, group_from_gid): New functions.
    (linux_xfer_osdata_shm): New function.
    (linux_xfer_osdata_sem): New function.
    (linux_xfer_osdata_msg): New function.
    (linux_xfer_osdata_modules): New function.
    (osdata_table): Add new entries.
    * common/buffer.c (buffer_xml_printf): Add support for long and
    long long format specifiers.

    * gdb.texinfo (Operating System Auxiliary Information): Document new
    'info os' subcommands.

    * gdb.base/info-os.exp: New file.
    * gdb.base/info-os.c: New file.

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