xref: /qemu/include/qemu/log.h (revision c4b8ffcb)
1 #ifndef QEMU_LOG_H
2 #define QEMU_LOG_H
3 
4 /* A small part of this API is split into its own header */
5 #include "qemu/log-for-trace.h"
6 
7 /*
8  * The new API:
9  */
10 
11 /* Returns true if qemu_log() will really write somewhere. */
12 bool qemu_log_enabled(void);
13 
14 /* Returns true if qemu_log() will write somewhere other than stderr. */
15 bool qemu_log_separate(void);
16 
17 #define CPU_LOG_TB_OUT_ASM (1 << 0)
18 #define CPU_LOG_TB_IN_ASM  (1 << 1)
19 #define CPU_LOG_TB_OP      (1 << 2)
20 #define CPU_LOG_TB_OP_OPT  (1 << 3)
21 #define CPU_LOG_INT        (1 << 4)
22 #define CPU_LOG_EXEC       (1 << 5)
23 #define CPU_LOG_PCALL      (1 << 6)
24 #define CPU_LOG_TB_CPU     (1 << 8)
25 #define CPU_LOG_RESET      (1 << 9)
26 #define LOG_UNIMP          (1 << 10)
27 #define LOG_GUEST_ERROR    (1 << 11)
28 #define CPU_LOG_MMU        (1 << 12)
29 #define CPU_LOG_TB_NOCHAIN (1 << 13)
30 #define CPU_LOG_PAGE       (1 << 14)
31 /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
32 #define CPU_LOG_TB_OP_IND  (1 << 16)
33 #define CPU_LOG_TB_FPU     (1 << 17)
34 #define CPU_LOG_PLUGIN     (1 << 18)
35 /* LOG_STRACE is used for user-mode strace logging. */
36 #define LOG_STRACE         (1 << 19)
37 #define LOG_PER_THREAD     (1 << 20)
38 
39 /* Lock/unlock output. */
40 
41 FILE *qemu_log_trylock(void) G_GNUC_WARN_UNUSED_RESULT;
42 void qemu_log_unlock(FILE *fd);
43 
44 /* Logging functions: */
45 
46 /* log only if a bit is set on the current loglevel mask:
47  * @mask: bit to check in the mask
48  * @fmt: printf-style format string
49  * @args: optional arguments for format string
50  */
51 #define qemu_log_mask(MASK, FMT, ...)                   \
52     do {                                                \
53         if (unlikely(qemu_loglevel_mask(MASK))) {       \
54             qemu_log(FMT, ## __VA_ARGS__);              \
55         }                                               \
56     } while (0)
57 
58 /* log only if a bit is set on the current loglevel mask
59  * and we are in the address range we care about:
60  * @mask: bit to check in the mask
61  * @addr: address to check in dfilter
62  * @fmt: printf-style format string
63  * @args: optional arguments for format string
64  */
65 #define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...)    \
66     do {                                                \
67         if (unlikely(qemu_loglevel_mask(MASK)) &&       \
68                      qemu_log_in_addr_range(ADDR)) {    \
69             qemu_log(FMT, ## __VA_ARGS__);              \
70         }                                               \
71     } while (0)
72 
73 /* Maintenance: */
74 
75 /* define log items */
76 typedef struct QEMULogItem {
77     int mask;
78     const char *name;
79     const char *help;
80 } QEMULogItem;
81 
82 extern const QEMULogItem qemu_log_items[];
83 
84 bool qemu_set_log(int log_flags, Error **errp);
85 bool qemu_set_log_filename(const char *filename, Error **errp);
86 bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp);
87 void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
88 bool qemu_log_in_addr_range(uint64_t addr);
89 int qemu_str_to_log_mask(const char *str);
90 
91 /* Print a usage message listing all the valid logging categories
92  * to the specified FILE*.
93  */
94 void qemu_print_log_usage(FILE *f);
95 
96 #endif
97