unicorn/qemu/qemu-log.c
Alex Bennée 2d401b6f23
qemu-log: new option -dfilter to limit output
When debugging big programs or system emulation sometimes you want both
the verbosity of cpu,exec et all but don't want to generate lots of logs
for unneeded stuff. This patch adds a new option -dfilter which allows
you to specify interesting address ranges in the form:

-dfilter 0x8000..0x8fff,0xffffffc000080000+0x200,...

Then logging code can use the new qemu_log_in_addr_range() function to
decide if it will output logging information for the given range.

Backports commit 3514552e04388d8e7686bcf89efd022e892acb5b from qemu
2018-02-22 10:02:26 -05:00

51 lines
1.2 KiB
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);
}
/* Returns true if addr is in our debug filter or no filter defined
*/
bool qemu_log_in_addr_range(uint64_t addr)
{
// Unicorn: stubbed
return true;
}
void qemu_set_dfilter_ranges(const char *filter_spec)
{
// Unicorn: stubbed
}