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 */ 22 extern int qemu_loglevel; 23 24 #define LOG_TRACE (1 << 15) 25 26 /* Returns true if a bit is set in the current loglevel mask */ 27 static inline bool qemu_loglevel_mask(int mask) 28 { 29 return (qemu_loglevel & mask) != 0; 30 } 31 32 /* main logging function */ 33 int G_GNUC_PRINTF(1, 2) qemu_log(const char *fmt, ...); 34 35 #endif 36