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 #ifdef NEED_CPU_H 9 // TODO(digit): #include "qom/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 44 /* Returns true if a bit is set in the current loglevel mask 45 */ 46 static inline bool qemu_loglevel_mask(int mask) 47 { 48 return (qemu_loglevel & mask) != 0; 49 } 50 51 /* Logging functions: */ 52 53 /* main logging function 54 */ 55 void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...); 56 57 /* vfprintf-like logging function 58 */ 59 static inline void GCC_FMT_ATTR(1, 0) 60 qemu_log_vprintf(const char *fmt, va_list va) 61 { 62 if (qemu_logfile) { 63 vfprintf(qemu_logfile, fmt, va); 64 } 65 } 66 67 /* log only if a bit is set on the current loglevel mask 68 */ 69 void GCC_FMT_ATTR(2, 3) qemu_log_mask(int mask, const char *fmt, ...); 70 71 72 /* Special cases: */ 73 74 #ifdef NEED_CPU_H 75 76 /* cpu_dump_state() logging functions: */ 77 /** 78 * log_cpu_state: 79 * @cpu: The CPU whose state is to be logged. 80 * @flags: Flags what to log. 81 * 82 * Logs the output of cpu_dump_state(). 83 */ 84 static inline void log_cpu_state(CPUState *cpu, int flags) 85 { 86 if (qemu_log_enabled()) { 87 cpu_dump_state(cpu, qemu_logfile, fprintf, flags); 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 /* disas() and target_disas() to qemu_logfile: */ 106 void target_disas(FILE*, CPUArchState*, target_ulong, target_ulong, int); 107 108 static inline void log_target_disas(CPUArchState *env, target_ulong start, 109 target_ulong len, int flags) 110 { 111 target_disas(qemu_logfile, env, start, len, flags); 112 } 113 114 void disas(FILE*, void*, unsigned long); 115 static inline void log_disas(void *code, unsigned long size) 116 { 117 disas(qemu_logfile, code, size); 118 } 119 120 #if defined(CONFIG_USER_ONLY) 121 /* page_dump() output to the log file: */ 122 static inline void log_page_dump(void) 123 { 124 page_dump(qemu_logfile); 125 } 126 #endif 127 #endif // NEED_CPU_H 128 129 130 /* Maintenance: */ 131 132 /* fflush() the log file */ 133 static inline void qemu_log_flush(void) 134 { 135 fflush(qemu_logfile); 136 } 137 138 /* Close the log file */ 139 static inline void qemu_log_close(void) 140 { 141 if (qemu_logfile) { 142 if (qemu_logfile != stderr) { 143 fclose(qemu_logfile); 144 } 145 qemu_logfile = NULL; 146 } 147 } 148 149 /* Set up a new log file */ 150 static inline void qemu_log_set_file(FILE *f) 151 { 152 qemu_logfile = f; 153 } 154 155 /* define log items */ 156 typedef struct QEMULogItem { 157 int mask; 158 const char *name; 159 const char *help; 160 } QEMULogItem; 161 162 extern const QEMULogItem qemu_log_items[]; 163 164 /* This is the function that actually does the work of 165 * changing the log level; it should only be accessed via 166 * the qemu_set_log() wrapper. 167 */ 168 void do_qemu_set_log(int log_flags, bool use_own_buffers); 169 170 static inline void qemu_set_log(int log_flags) 171 { 172 #ifdef CONFIG_USER_ONLY 173 do_qemu_set_log(log_flags, true); 174 #else 175 do_qemu_set_log(log_flags, false); 176 #endif 177 } 178 179 void qemu_set_log_filename(const char *filename); 180 int qemu_str_to_log_mask(const char *str); 181 182 /* Print a usage message listing all the valid logging categories 183 * to the specified FILE*. 184 */ 185 void qemu_print_log_usage(FILE *f); 186 187 #endif 188