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authorThomas Schwinge <tschwinge@gnu.org>2008-11-20 22:50:42 +0100
committerThomas Schwinge <tschwinge@gnu.org>2008-11-20 22:50:42 +0100
commitad75cac5b15615e206c601ca21cc65618f357b49 (patch)
tree2baf341c0ce782cb7090a3b6433af7fa9922457f /hurd/debugging/translator/capturing_stdout_and_stderr.mdwn
parentb1d42782501e37daf05c63d68f23a712babc8e09 (diff)
About capturing a translator's stdout and stderr.
Diffstat (limited to 'hurd/debugging/translator/capturing_stdout_and_stderr.mdwn')
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+[[meta copyright="Copyright © 2008 Free Software Foundation, Inc."]]
+
+[[meta license="""[[toggle id="license" text="GFDL 1.2+"]][[toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled
+[[GNU_Free_Documentation_License|/fdl]]."]]"""]]
+
+Sometimes it may already be helpful to capture a translator's `stdout` and
+`stderr`, for example like this:
+
+ $ sudo settrans -fgap ↩
+ /servers/socket/2 ↩
+ /bin/sh -c '/hurd/pfinet -i eth0 -a [...] > /tmp/stdout 2> /tmp/stderr'
+ $ [...]
+ $ cat /tmp/stdout
+ NET4: Linux TCP/IP 1.0 for NET4.0
+ IP Protocols: ICMP, UDP, TCP
+ TCP: Hash tables configured (ehash 65536 bhash 65536)
+ $ cat /tmp/stderr
+ pfinet: ../../hurd.work/pfinet/ethernet.c:196: ethernet_xmit: Unexpected error: (os/device) invalid IO size.
+
+(Trying to run [[GDB]] in this case was of no help -- due to a bug in GDB
+(supposedly) it wouldn't catch the fault.)