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Command line support for altering the log file location 

Add command line support for logging to a location other than /tmp/qemu.log.

With logging enabled (command line option -d), the log is written to
the hard-coded path /tmp/qemu.log. This patch adds support for writing
the log to a different location by passing the -D option.

Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Matthew Fernandez 2011-06-07 16:32:40 +00:00 committed by Blue Swirl
parent 71f34ad053
commit c235d7387c
7 changed files with 114 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
bsd-user/main.c
View File

@ -690,7 +690,8 @@ static void usage(void)
"-bsd type select emulated BSD type FreeBSD/NetBSD/OpenBSD (default)\n"
"\n"
"Debug options:\n"
"-d options activate log (logfile=%s)\n"
"-d options activate log (default logfile=%s)\n"
"-D logfile override default logfile location\n"
"-p pagesize set the host page size to 'pagesize'\n"
"-singlestep always run in singlestep mode\n"
"-strace log system calls\n"
@ -731,6 +732,8 @@ int main(int argc, char **argv)
{
const char *filename;
const char *cpu_model;
const char *log_file = DEBUG_LOGFILE;
const char *log_mask = NULL;
struct target_pt_regs regs1, *regs = &regs1;
struct image_info info1, *info = &info1;
TaskState ts1, *ts = &ts1;
@ -745,9 +748,6 @@ int main(int argc, char **argv)
if (argc <= 1)
usage();
/* init debug */
cpu_set_log_filename(DEBUG_LOGFILE);
if ((envlist = envlist_create()) == NULL) {
(void) fprintf(stderr, "Unable to allocate envlist\n");
exit(1);
@ -775,22 +775,15 @@ int main(int argc, char **argv)
if (!strcmp(r, "-")) {
break;
} else if (!strcmp(r, "d")) {
int mask;
const CPULogItem *item;
if (optind >= argc)
if (optind >= argc) {
break;
r = argv[optind++];
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for(item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
log_mask = argv[optind++];
} else if (!strcmp(r, "D")) {
if (optind >= argc) {
break;
}
log_file = argv[optind++];
} else if (!strcmp(r, "E")) {
r = argv[optind++];
if (envlist_setenv(envlist, r) != 0)
@ -867,6 +860,23 @@ int main(int argc, char **argv)
usage();
filename = argv[optind];
/* init debug */
cpu_set_log_filename(log_file);
if (log_mask) {
int mask;
const CPULogItem *item;
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for (item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
}
/* Zero out regs */
memset(regs, 0, sizeof(struct target_pt_regs));

5
cpus.c
View File

@ -1142,6 +1142,11 @@ void set_cpu_log(const char *optarg)
cpu_set_log(mask);
}
void set_cpu_log_filename(const char *optarg)
{
cpu_set_log_filename(optarg);
}
/* Return the virtual CPU time, based on the instruction counter. */
int64_t cpu_get_icount(void)
{

1
cpus.h
View File

@ -19,6 +19,7 @@ void vm_state_notify(int running, int reason);
bool cpu_exec_all(void);
void set_numa_modes(void);
void set_cpu_log(const char *optarg);
void set_cpu_log_filename(const char *optarg);
void list_cpus(FILE *f, fprintf_function cpu_fprintf, const char *optarg);
#endif

45
darwin-user/main.c
View File

@ -738,6 +738,8 @@ TaskState *first_task_state;
int main(int argc, char **argv)
{
const char *filename;
const char *log_file = DEBUG_LOGFILE;
const char *log_mask = NULL;
struct target_pt_regs regs1, *regs = &regs1;
TaskState ts1, *ts = &ts1;
CPUState *env;
@ -749,9 +751,6 @@ int main(int argc, char **argv)
if (argc <= 1)
usage();
/* init debug */
cpu_set_log_filename(DEBUG_LOGFILE);
optind = 1;
for(;;) {
if (optind >= argc)
@ -764,22 +763,15 @@ int main(int argc, char **argv)
if (!strcmp(r, "-")) {
break;
} else if (!strcmp(r, "d")) {
int mask;
CPULogItem *item;
if (optind >= argc)
break;
r = argv[optind++];
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for(item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
if (optind >= argc) {
break;
}
cpu_set_log(mask);
log_mask = argv[optind++];
} else if (!strcmp(r, "D")) {
if (optind >= argc) {
break;
}
log_file = argv[optind++];
} else if (!strcmp(r, "s")) {
r = argv[optind++];
stack_size = strtol(r, (char **)&r, 0);
@ -821,6 +813,23 @@ int main(int argc, char **argv)
usage();
filename = argv[optind];
/* init debug */
cpu_set_log_filename(log_file);
if (log_mask) {
int mask;
CPULogItem *item;
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for (item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
}
/* Zero out regs */
memset(regs, 0, sizeof(struct target_pt_regs));

43
linux-user/main.c
View File

@ -2832,6 +2832,8 @@ int main(int argc, char **argv, char **envp)
{
const char *filename;
const char *cpu_model;
const char *log_file = DEBUG_LOGFILE;
const char *log_mask = NULL;
struct target_pt_regs regs1, *regs = &regs1;
struct image_info info1, *info = &info1;
struct linux_binprm bprm;
@ -2853,9 +2855,6 @@ int main(int argc, char **argv, char **envp)
qemu_cache_utils_init(envp);
/* init debug */
cpu_set_log_filename(DEBUG_LOGFILE);
if ((envlist = envlist_create()) == NULL) {
(void) fprintf(stderr, "Unable to allocate envlist\n");
exit(1);
@ -2894,22 +2893,15 @@ int main(int argc, char **argv, char **envp)
if (!strcmp(r, "-")) {
break;
} else if (!strcmp(r, "d")) {
int mask;
const CPULogItem *item;
if (optind >= argc)
if (optind >= argc) {
break;
r = argv[optind++];
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for(item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
log_mask = argv[optind++];
} else if (!strcmp(r, "D")) {
if (optind >= argc) {
break;
}
log_file = argv[optind++];
} else if (!strcmp(r, "E")) {
r = argv[optind++];
if (envlist_setenv(envlist, r) != 0)
@ -3022,6 +3014,23 @@ int main(int argc, char **argv, char **envp)
filename = argv[optind];
exec_path = argv[optind];
/* init debug */
cpu_set_log_filename(log_file);
if (log_mask) {
int mask;
const CPULogItem *item;
mask = cpu_str_to_log_mask(r);
if (!mask) {
printf("Log items (comma separated):\n");
for (item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
}
/* Zero out regs */
memset(regs, 0, sizeof(struct target_pt_regs));

9
qemu-options.hx
View File

@ -2007,6 +2007,15 @@ STEXI
Output log in /tmp/qemu.log
ETEXI
DEF("D", HAS_ARG, QEMU_OPTION_D, \
"-D logfile output log to logfile (instead of the default /tmp/qemu.log)\n",
QEMU_ARCH_ALL)
STEXI
@item -D
@findex -D
Output log in logfile instead of /tmp/qemu.log
ETEXI
DEF("hdachs", HAS_ARG, QEMU_OPTION_hdachs, \
"-hdachs c,h,s[,t]\n" \
" force hard disk 0 physical geometry and the optional BIOS\n" \

19
vl.c
View File

@ -2067,6 +2067,8 @@ int main(int argc, char **argv, char **envp)
#endif
int defconfig = 1;
const char *trace_file = NULL;
const char *log_mask = NULL;
const char *log_file = NULL;
atexit(qemu_run_exit_notifiers);
error_set_progname(argv[0]);
@ -2441,7 +2443,10 @@ int main(int argc, char **argv, char **envp)
break;
#endif
case QEMU_OPTION_d:
set_cpu_log(optarg);
log_mask = optarg;
break;
case QEMU_OPTION_D:
log_file = optarg;
break;
case QEMU_OPTION_s:
gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
@ -2907,6 +2912,18 @@ int main(int argc, char **argv, char **envp)
}
loc_set_none();
/* Open the logfile at this point, if necessary. We can't open the logfile
* when encountering either of the logging options (-d or -D) because the
* other one may be encountered later on the command line, changing the
* location or level of logging.
*/
if (log_mask) {
if (log_file) {
set_cpu_log_filename(log_file);
}
set_cpu_log(log_mask);
}
if (!st_init(trace_file)) {
fprintf(stderr, "warning: unable to initialize simple trace backend\n");
}