1 #ifndef QEMU_LOG_H 2 #define QEMU_LOG_H 3 4 #include <stdarg.h> 5 #include <stdbool.h> 6 #include <stdio.h> 7 #include "qemu/compiler.h" 8 #include "qom/cpu.h" 9 #ifdef NEED_CPU_H 10 #include "disas/disas.h" 11 #endif 12 13 /* Private global variables, don't use */ 14 extern FILE *qemu_logfile; 15 extern int qemu_loglevel; 16 17 /* 18 * The new API: 19 * 20 */ 21 22 /* Log settings checking macros: */ 23 24 /* Returns true if qemu_log() will really write somewhere 25 */ 26 static inline bool qemu_log_enabled(void) 27 { 28 return qemu_logfile != NULL; 29 } 30 31 #define CPU_LOG_TB_OUT_ASM (1 << 0) 32 #define CPU_LOG_TB_IN_ASM (1 << 1) 33 #define CPU_LOG_TB_OP (1 << 2) 34 #define CPU_LOG_TB_OP_OPT (1 << 3) 35 #define CPU_LOG_INT (1 << 4) 36 #define CPU_LOG_EXEC (1 << 5) 37 #define CPU_LOG_PCALL (1 << 6) 38 #define CPU_LOG_IOPORT (1 << 7) 39 #define CPU_LOG_TB_CPU (1 << 8) 40 #define CPU_LOG_RESET (1 << 9) 41 #define LOG_UNIMP (1 << 10) 42 #define LOG_GUEST_ERROR (1 << 11) 43 #define CPU_LOG_MMU (1 << 12) 44 45 /* Returns true if a bit is set in the current loglevel mask 46 */ 47 static inline bool qemu_loglevel_mask(int mask) 48 { 49 return (qemu_loglevel & mask) != 0; 50 } 51 52 /* Logging functions: */ 53 54 /* main logging function 55 */ 56 void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...); 57 58 /* vfprintf-like logging function 59 */ 60 static inline void GCC_FMT_ATTR(1, 0) 61 qemu_log_vprintf(const char *fmt, va_list va) 62 { 63 if (qemu_logfile) { 64 vfprintf(qemu_logfile, fmt, va); 65 } 66 } 67 68 /* log only if a bit is set on the current loglevel mask 69 */ 70 void GCC_FMT_ATTR(2, 3) qemu_log_mask(int mask, const char *fmt, ...); 71 72 73 /* Special cases: */ 74 75 /* cpu_dump_state() logging functions: */ 76 /** 77 * log_cpu_state: 78 * @cpu: The CPU whose state is to be logged. 79 * @flags: Flags what to log. 80 * 81 * Logs the output of cpu_dump_state(). 82 */ 83 static inline void log_cpu_state(CPUState *cpu, int flags) 84 { 85 if (qemu_log_enabled()) { 86 cpu_dump_state(cpu, qemu_logfile, fprintf, flags); 87 } 88 } 89 90 /** 91 * log_cpu_state_mask: 92 * @mask: Mask when to log. 93 * @cpu: The CPU whose state is to be logged. 94 * @flags: Flags what to log. 95 * 96 * Logs the output of cpu_dump_state() if loglevel includes @mask. 97 */ 98 static inline void log_cpu_state_mask(int mask, CPUState *cpu, int flags) 99 { 100 if (qemu_loglevel & mask) { 101 log_cpu_state(cpu, flags); 102 } 103 } 104 105 #ifdef NEED_CPU_H 106 /* disas() and target_disas() to qemu_logfile: */ 107 static inline void log_target_disas(CPUState *cpu, target_ulong start, 108 target_ulong len, int flags) 109 { 110 target_disas(qemu_logfile, cpu, start, len, flags); 111 } 112 113 static inline void log_disas(void *code, unsigned long size) 114 { 115 disas(qemu_logfile, code, size); 116 } 117 118 #if defined(CONFIG_USER_ONLY) 119 /* page_dump() output to the log file: */ 120 static inline void log_page_dump(void) 121 { 122 page_dump(qemu_logfile); 123 } 124 #endif 125 #endif 126 127 128 /* Maintenance: */ 129 130 /* fflush() the log file */ 131 static inline void qemu_log_flush(void) 132 { 133 fflush(qemu_logfile); 134 } 135 136 /* Close the log file */ 137 static inline void qemu_log_close(void) 138 { 139 if (qemu_logfile) { 140 if (qemu_logfile != stderr) { 141 fclose(qemu_logfile); 142 } 143 qemu_logfile = NULL; 144 } 145 } 146 147 /* Set up a new log file */ 148 static inline void qemu_log_set_file(FILE *f) 149 { 150 qemu_logfile = f; 151 } 152 153 /* define log items */ 154 typedef struct QEMULogItem { 155 int mask; 156 const char *name; 157 const char *help; 158 } QEMULogItem; 159 160 extern const QEMULogItem qemu_log_items[]; 161 162 /* This is the function that actually does the work of 163 * changing the log level; it should only be accessed via 164 * the qemu_set_log() wrapper. 165 */ 166 void do_qemu_set_log(int log_flags, bool use_own_buffers); 167 168 static inline void qemu_set_log(int log_flags) 169 { 170 #ifdef CONFIG_USER_ONLY 171 do_qemu_set_log(log_flags, true); 172 #else 173 do_qemu_set_log(log_flags, false); 174 #endif 175 } 176 177 void qemu_set_log_filename(const char *filename); 178 int qemu_str_to_log_mask(const char *str); 179 180 /* Print a usage message listing all the valid logging categories 181 * to the specified FILE*. 182 */ 183 void qemu_print_log_usage(FILE *f); 184 185 #endif 186