1#ifndef QEMU_LOG_H
2#define QEMU_LOG_H
3
4/* The deprecated global variables: */
5extern FILE *logfile;
6extern int loglevel;
7
8
9/*
10 * The new API:
11 *
12 */
13
14/* Log settings checking macros: */
15
16/* Returns true if qemu_log() will really write somewhere
17 */
18#define qemu_log_enabled() (logfile != NULL)
19
20/* Returns true if a bit is set in the current loglevel mask
21 */
22#define qemu_loglevel_mask(b) ((loglevel & (b)) != 0)
23
24
25/* Logging functions: */
26
27/* main logging function
28 */
29#define qemu_log(...) do {                 \
30        if (logfile)                       \
31            fprintf(logfile, ## __VA_ARGS__); \
32    } while (0)
33
34/* vfprintf-like logging function
35 */
36#define qemu_log_vprintf(fmt, va) do {     \
37        if (logfile)                       \
38            vfprintf(logfile, fmt, va);    \
39    } while (0)
40
41/* log only if a bit is set on the current loglevel mask
42 */
43#define qemu_log_mask(b, ...) do {         \
44        if (loglevel & (b))                \
45            fprintf(logfile, ## __VA_ARGS__); \
46    } while (0)
47
48
49
50
51/* Special cases: */
52
53/* cpu_dump_state() logging functions: */
54#define log_cpu_state(env, f) cpu_dump_state((env), logfile, fprintf, (f));
55#define log_cpu_state_mask(b, env, f) do {           \
56      if (loglevel & (b)) log_cpu_state((env), (f)); \
57  } while (0)
58
59/* disas() and target_disas() to logfile: */
60#define log_target_disas(start, len, flags) \
61        target_disas(logfile, (start), (len), (flags))
62#define log_disas(start, len) \
63        disas(logfile, (start), (len))
64
65/* page_dump() output to the log file: */
66#define log_page_dump() page_dump(logfile)
67
68
69
70/* Maintenance: */
71
72/* fflush() the log file */
73#define qemu_log_flush() fflush(logfile)
74
75/* Close the log file */
76#define qemu_log_close() do { \
77        fclose(logfile);      \
78        logfile = NULL;       \
79    } while (0)
80
81/* Set up a new log file */
82#define qemu_log_set_file(f) do { \
83        logfile = (f);            \
84    } while (0)
85
86/* Set up a new log file, only if none is set */
87#define qemu_log_try_set_file(f) do { \
88        if (!logfile)                 \
89            logfile = (f);            \
90    } while (0)
91
92
93#endif
94