qemu-log: default to stderr for logging output
Switch the default for qemu_log logging output from "/tmp/qemu.log"
to stderr. This is an incompatible change in some sense, but logging
is mostly used for debugging purposes so it shouldn't affect production
use. The previous behaviour can be obtained by adding "-D /tmp/qemu.log"
to the command line.
This change requires us to:
* update all the documentation/help text (we take the opportunity
to smooth out minor inconsistencies between the phrasing in
linux-user/bsd-user/system help messages)
* make linux-user and bsd-user defer to qemu-log for the default
logging destination rather than overriding it themselves
* ensure that all logfile closing is done via qemu_log_close()
and that that function doesn't close stderr
as well as the obvious change to the behaviour of do_qemu_set_log()
when no logfile name has been specified.
Signed-off-by: Peter Maydell <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Markus Armbruster <[email protected]>
Message-id: [email protected]
Signed-off-by: Anthony Liguori <[email protected]>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 64008a9..cef7708 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -295,14 +295,14 @@
.name = "log",
.args_type = "items:s",
.params = "item1[,...]",
- .help = "activate logging of the specified items to '/tmp/qemu.log'",
+ .help = "activate logging of the specified items",
.mhandler.cmd = do_log,
},
STEXI
@item log @var{item1}[,...]
@findex log
-Activate logging of the specified items to @file{/tmp/qemu.log}.
+Activate logging of the specified items.
ETEXI
{
