qemu-log: dfilter-ise exec, out_asm, op and opt_op

This ensures the code generation debug code will honour -dfilter if set.
For the "exec" tracing I've added a new inline macro for efficiency's
sake.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aurelien Jarno <aurelien@aureL32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1458052224-9316-8-git-send-email-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/qemu/log.h

@@ -78,6 +78,21 @@ qemu_log_vprintf(const char *fmt, va_list va)
         }                                               \
     } while (0)
 
+/* log only if a bit is set on the current loglevel mask
+ * and we are in the address range we care about:
+ * @mask: bit to check in the mask
+ * @addr: address to check in dfilter
+ * @fmt: printf-style format string
+ * @args: optional arguments for format string
+ */
+#define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...)    \
+    do {                                                \
+        if (unlikely(qemu_loglevel_mask(MASK)) &&       \
+                     qemu_log_in_addr_range(ADDR)) {    \
+            qemu_log(FMT, ## __VA_ARGS__);              \
+        }                                               \
+    } while (0)
+
 /* Maintenance: */
 
 /* fflush() the log file */