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