unicorn/qemu/qemu-log.c
Peter Maydell 66e1bacd64
qemu-log: Avoid function call for disabled qemu_log_mask logging
Make qemu_log_mask() a macro which only calls the function to
do the actual work if the logging is enabled. This avoids making
a function call in possible fast paths where logging is disabled.

Backports commit 7ee606230e6b7645d92365d9b39179368e83ac54 from qemu
2018-02-22 09:32:48 -05:00

37 lines
1,017 B
C

/*
* Logging support
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/log.h"
FILE *qemu_logfile;
int qemu_loglevel;
void qemu_log(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (qemu_logfile) {
vfprintf(qemu_logfile, fmt, ap);
}
va_end(ap);
}