OpenAFS Master Repository branch, master, updated. BP-openafs-stable-1_8_x-179-gcc1724e

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit cc1724e6f5a8f485197aba6246c909869e58d0b2
Author: Perry Ruiter <pruiter@sinenomine.net>
Date:   Thu Apr 23 21:33:27 2015 -0700

    afsd: Improve syscall tracing
    
    When afsd is started with the -debug flag, extensive debug output is
    generated including tracing for each syscall.  Unfortunately the
    existing syscall tracing is not especially helpful.  It dumps out two
    constants that we already knew at compile time, the first parameter of
    the syscall along with the syscall's return code.  Specifically it does
    not tell you which syscall is currently being traced.  Here's a current
    example of afsd -debug:
    
        afsd: cacheFiles autotuned to 581250
        afsd: dCacheSize autotuned to 10000
        afsd: cacheStatEntries autotuned to 15000
        SScall(183, 28, 6860800)=0
        SScall(183, 28, -847416368)=0
        SScall(183, 28, 1)=0
        afsd: Forking rx listener daemon.
        afsd: Forking rx callback listener.
        afsd: Forking rxevent daemon.
        SScall(183, 28, 0)=0
        SScall(183, 28, 1)=0
        ...
    
    This patch drops the compile time constants (183 and 28 in the above
    sample output) and replaces them with the name of the syscall being
    traced.  Additionally the first parameter to a syscall is as likely to
    be an address as a decimal value so display it in hex. Here's an example
    of afsd -debug with these changes:
    
        afsd: cacheFiles autotuned to 581250
        afsd: dCacheSize autotuned to 10000
        afsd: cacheStatEntries autotuned to 15000
        os_syscall(AFSOP_SET_THISCELL, 0x68bf80)=0
        os_syscall(AFSOP_SEED_ENTROPY, 0x7fff9ce40c10)=0
        os_syscall(AFSOP_ADVISEADDR, 0x1)=0
        afsd: Forking rx listener daemon.
        afsd: Forking rx callback listener.
        afsd: Forking rxevent daemon.
        os_syscall(AFSOP_RXEVENT_DAEMON, 0x0)=0
        os_syscall(AFSOP_BASIC_INIT, 0x1)=0
        ...
    
    [mmeffie@sinenomine.net: avoid c99 array initialization.]
    
    Change-Id: I4f3d46d420d19abeddbf719efa04aef7e553d51f
    Reviewed-on: https://gerrit.openafs.org/11858
    Tested-by: Mark Vitale <mvitale@sinenomine.net>
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>

 src/afsd/afsd_kernel.c |   92 +++++++++++++++++++++++++++++++++++++++++++++--
 src/config/afs_args.h  |    3 ++
 2 files changed, 91 insertions(+), 4 deletions(-)

-- 
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