LXR qemu/include/qemu/log-for-trace.h

   1/* log-for-trace.h: logging basics required by the trace.h generated
   2 * by the log trace backend.
   3 *
   4 * This should not be included directly by any .c file: if you
   5 * need to use the logging functions include "qemu/log.h".
   6 *
   7 * The purpose of splitting these parts out into their own header
   8 * is to catch the easy mistake where a .c file includes trace.h
   9 * but forgets to include qemu/log.h. Without this split, that
  10 * would result in the .c file compiling fine when the default
  11 * trace backend is in use but failing to compile with any other
  12 * backend.
  13 *
  14 * This code is licensed under the GNU General Public License,
  15 * version 2 or (at your option) any later version.
  16 */
  17
  18#ifndef QEMU_LOG_FOR_TRACE_H
  19#define QEMU_LOG_FOR_TRACE_H
  20
  21/* Private global variable, don't use */
  22extern int qemu_loglevel;
  23
  24#define LOG_TRACE          (1 << 15)
  25
  26/* Returns true if a bit is set in the current loglevel mask */
  27static inline bool qemu_loglevel_mask(int mask)
  28{
  29    return (qemu_loglevel & mask) != 0;
  30}
  31
  32/* main logging function */
  33int GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);
  34
  35#endif
  36