#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/log.h"
+#include "qemu/range.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+#include "qemu/cutils.h"
#include "trace/control.h"
static char *logfilename;
FILE *qemu_logfile;
int qemu_loglevel;
static int log_append = 0;
+static GArray *debug_regions;
-void qemu_log(const char *fmt, ...)
+/* Return the number of characters emitted. */
+int qemu_log(const char *fmt, ...)
{
- va_list ap;
-
- va_start(ap, fmt);
+ int ret = 0;
if (qemu_logfile) {
- vfprintf(qemu_logfile, fmt, ap);
- }
- va_end(ap);
-}
-
-void qemu_log_mask(int mask, const char *fmt, ...)
-{
- va_list ap;
+ va_list ap;
+ va_start(ap, fmt);
+ ret = vfprintf(qemu_logfile, fmt, ap);
+ va_end(ap);
- va_start(ap, fmt);
- if ((qemu_loglevel & mask) && qemu_logfile) {
- vfprintf(qemu_logfile, fmt, ap);
+ /* Don't pass back error results. */
+ if (ret < 0) {
+ ret = 0;
+ }
}
- va_end(ap);
+ return ret;
}
+static bool log_uses_own_buffers;
+
/* enable or disable low levels log */
-void do_qemu_set_log(int log_flags, bool use_own_buffers)
+void qemu_set_log(int log_flags)
{
qemu_loglevel = log_flags;
#ifdef CONFIG_TRACE_LOG
qemu_loglevel |= LOG_TRACE;
#endif
- if ((qemu_loglevel || is_daemonized()) && !qemu_logfile) {
+ if (!qemu_logfile &&
+ (is_daemonized() ? logfilename != NULL : qemu_loglevel)) {
if (logfilename) {
qemu_logfile = fopen(logfilename, log_append ? "a" : "w");
if (!qemu_logfile) {
}
} else {
/* Default to stderr if no log file specified */
+ assert(!is_daemonized());
qemu_logfile = stderr;
}
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
- if (use_own_buffers) {
+ if (log_uses_own_buffers) {
static char logfile_buf[4096];
setvbuf(qemu_logfile, logfile_buf, _IOLBF, sizeof(logfile_buf));
log_append = 1;
}
}
- if (!qemu_loglevel && !is_daemonized() && qemu_logfile) {
+ if (qemu_logfile &&
+ (is_daemonized() ? logfilename == NULL : !qemu_loglevel)) {
qemu_log_close();
}
}
-void qemu_set_log_filename(const char *filename)
+void qemu_log_needs_buffers(void)
+{
+ log_uses_own_buffers = true;
+}
+
+/*
+ * Allow the user to include %d in their logfile which will be
+ * substituted with the current PID. This is useful for debugging many
+ * nested linux-user tasks but will result in lots of logs.
+ */
+void qemu_set_log_filename(const char *filename, Error **errp)
{
+ char *pidstr;
g_free(logfilename);
- logfilename = g_strdup(filename);
+
+ pidstr = strstr(filename, "%");
+ if (pidstr) {
+ /* We only accept one %d, no other format strings */
+ if (pidstr[1] != 'd' || strchr(pidstr + 2, '%')) {
+ error_setg(errp, "Bad logfile format: %s", filename);
+ return;
+ } else {
+ logfilename = g_strdup_printf(filename, getpid());
+ }
+ } else {
+ logfilename = g_strdup(filename);
+ }
qemu_log_close();
qemu_set_log(qemu_loglevel);
}
+/* Returns true if addr is in our debug filter or no filter defined
+ */
+bool qemu_log_in_addr_range(uint64_t addr)
+{
+ if (debug_regions) {
+ int i = 0;
+ for (i = 0; i < debug_regions->len; i++) {
+ Range *range = &g_array_index(debug_regions, Range, i);
+ if (range_contains(range, addr)) {
+ return true;
+ }
+ }
+ return false;
+ } else {
+ return true;
+ }
+}
+
+
+void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp)
+{
+ gchar **ranges = g_strsplit(filter_spec, ",", 0);
+ int i;
+
+ if (debug_regions) {
+ g_array_unref(debug_regions);
+ debug_regions = NULL;
+ }
+
+ debug_regions = g_array_sized_new(FALSE, FALSE,
+ sizeof(Range), g_strv_length(ranges));
+ for (i = 0; ranges[i]; i++) {
+ const char *r = ranges[i];
+ const char *range_op, *r2, *e;
+ uint64_t r1val, r2val, lob, upb;
+ struct Range range;
+
+ range_op = strstr(r, "-");
+ r2 = range_op ? range_op + 1 : NULL;
+ if (!range_op) {
+ range_op = strstr(r, "+");
+ r2 = range_op ? range_op + 1 : NULL;
+ }
+ if (!range_op) {
+ range_op = strstr(r, "..");
+ r2 = range_op ? range_op + 2 : NULL;
+ }
+ if (!range_op) {
+ error_setg(errp, "Bad range specifier");
+ goto out;
+ }
+
+ if (qemu_strtou64(r, &e, 0, &r1val)
+ || e != range_op) {
+ error_setg(errp, "Invalid number to the left of %.*s",
+ (int)(r2 - range_op), range_op);
+ goto out;
+ }
+ if (qemu_strtou64(r2, NULL, 0, &r2val)) {
+ error_setg(errp, "Invalid number to the right of %.*s",
+ (int)(r2 - range_op), range_op);
+ goto out;
+ }
+
+ switch (*range_op) {
+ case '+':
+ lob = r1val;
+ upb = r1val + r2val - 1;
+ break;
+ case '-':
+ upb = r1val;
+ lob = r1val - (r2val - 1);
+ break;
+ case '.':
+ lob = r1val;
+ upb = r2val;
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ if (lob > upb) {
+ error_setg(errp, "Invalid range");
+ goto out;
+ }
+ range_set_bounds(&range, lob, upb);
+ g_array_append_val(debug_regions, range);
+ }
+out:
+ g_strfreev(ranges);
+}
+
+/* fflush() the log file */
+void qemu_log_flush(void)
+{
+ fflush(qemu_logfile);
+}
+
+/* Close the log file */
+void qemu_log_close(void)
+{
+ if (qemu_logfile) {
+ if (qemu_logfile != stderr) {
+ fclose(qemu_logfile);
+ }
+ qemu_logfile = NULL;
+ }
+}
+
const QEMULogItem qemu_log_items[] = {
{ CPU_LOG_TB_OUT_ASM, "out_asm",
"show generated host assembly code for each compiled TB" },
{ CPU_LOG_TB_OP, "op",
"show micro ops for each compiled TB" },
{ CPU_LOG_TB_OP_OPT, "op_opt",
- "show micro ops (x86 only: before eflags optimization) and\n"
- "after liveness analysis" },
+ "show micro ops after optimization" },
+ { CPU_LOG_TB_OP_IND, "op_ind",
+ "show micro ops before indirect lowering" },
{ CPU_LOG_INT, "int",
"show interrupts/exceptions in short format" },
{ CPU_LOG_EXEC, "exec",
"show trace before each executed TB (lots of logs)" },
{ CPU_LOG_TB_CPU, "cpu",
- "show CPU state before block translation" },
+ "show CPU registers before entering a TB (lots of logs)" },
{ CPU_LOG_MMU, "mmu",
"log MMU-related activities" },
{ CPU_LOG_PCALL, "pcall",
{ 0, NULL, NULL },
};
-static int cmp1(const char *s1, int n, const char *s2)
-{
- if (strlen(s2) != n) {
- return 0;
- }
- return memcmp(s1, s2, n) == 0;
-}
-
/* takes a comma separated list of log masks. Return 0 if error. */
int qemu_str_to_log_mask(const char *str)
{
const QEMULogItem *item;
- int mask;
- const char *p, *p1;
-
- p = str;
- mask = 0;
- for (;;) {
- p1 = strchr(p, ',');
- if (!p1) {
- p1 = p + strlen(p);
- }
- if (cmp1(p,p1-p,"all")) {
+ int mask = 0;
+ char **parts = g_strsplit(str, ",", 0);
+ char **tmp;
+
+ for (tmp = parts; tmp && *tmp; tmp++) {
+ if (g_str_equal(*tmp, "all")) {
for (item = qemu_log_items; item->mask != 0; item++) {
mask |= item->mask;
}
#ifdef CONFIG_TRACE_LOG
- } else if (strncmp(p, "trace:", 6) == 0 && p + 6 != p1) {
- trace_enable_events(p + 6);
+ } else if (g_str_has_prefix(*tmp, "trace:") && (*tmp)[6] != '\0') {
+ trace_enable_events((*tmp) + 6);
mask |= LOG_TRACE;
#endif
} else {
for (item = qemu_log_items; item->mask != 0; item++) {
- if (cmp1(p, p1 - p, item->name)) {
+ if (g_str_equal(*tmp, item->name)) {
goto found;
}
}
- return 0;
+ goto error;
found:
mask |= item->mask;
}
- if (*p1 != ',') {
- break;
- }
- p = p1 + 1;
}
+
+ g_strfreev(parts);
return mask;
+
+ error:
+ g_strfreev(parts);
+ return 0;
}
void qemu_print_log_usage(FILE *f)
projects / qemu.git / blobdiff