diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2008-11-13 08:33:00 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-13 19:58:22 +0100 |
| commit | d1aaf8cf8afe70a8c2235a565885291fe290c57c (patch) | |
| tree | 027bbef67998a8f7e3a519d66a62a45a6526b354 /scripts/bootgraph.pl | |
| parent | 24de38620dd3504782c90c0892eef888d0c351e9 (diff) | |
tracing/fastboot: put error message on stderr
Since this scripts output is usually redirected, put error messages
on standard error and exit with error code if no data is found.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'scripts/bootgraph.pl')
| -rw-r--r-- | scripts/bootgraph.pl | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl index a8635a10fef2..f0af9aa9b243 100644 --- a/scripts/bootgraph.pl +++ b/scripts/bootgraph.pl @@ -78,11 +78,13 @@ while (<>) { } if ($count == 0) { - print "No data found in the dmesg. Make sure that 'printk.time=1' and\n"; - print "'initcall_debug' are passed on the kernel command line.\n\n"; - print "Usage: \n"; - print " dmesg | perl scripts/bootgraph.pl > output.svg\n\n"; - exit; + print STDERR <<END; +No data found in the dmesg. Make sure that 'printk.time=1' and +'initcall_debug' are passed on the kernel command line. +Usage: + dmesg | perl scripts/bootgraph.pl > output.svg +END + exit 1; } print "<?xml version=\"1.0\" standalone=\"no\"?> \n"; |