xemu/include/qemu/log.h
Richard Henderson 4e51069d67 util/log: Support per-thread log files
Add a new log flag, tid, to turn this feature on.
Require the log filename to be set, and to contain %d.

Do not allow tid to be turned off once it is on, nor let
the filename be change thereafter.  This avoids the need
for signalling each thread to re-open on a name change.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-40-richard.henderson@linaro.org>
2022-04-20 10:51:11 -07:00

97 lines
3.0 KiB
C

#ifndef QEMU_LOG_H
#define QEMU_LOG_H
/* A small part of this API is split into its own header */
#include "qemu/log-for-trace.h"
/*
* The new API:
*/
/* Returns true if qemu_log() will really write somewhere. */
bool qemu_log_enabled(void);
/* Returns true if qemu_log() will write somewhere other than stderr. */
bool qemu_log_separate(void);
#define CPU_LOG_TB_OUT_ASM (1 << 0)
#define CPU_LOG_TB_IN_ASM (1 << 1)
#define CPU_LOG_TB_OP (1 << 2)
#define CPU_LOG_TB_OP_OPT (1 << 3)
#define CPU_LOG_INT (1 << 4)
#define CPU_LOG_EXEC (1 << 5)
#define CPU_LOG_PCALL (1 << 6)
#define CPU_LOG_TB_CPU (1 << 8)
#define CPU_LOG_RESET (1 << 9)
#define LOG_UNIMP (1 << 10)
#define LOG_GUEST_ERROR (1 << 11)
#define CPU_LOG_MMU (1 << 12)
#define CPU_LOG_TB_NOCHAIN (1 << 13)
#define CPU_LOG_PAGE (1 << 14)
/* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
#define CPU_LOG_TB_OP_IND (1 << 16)
#define CPU_LOG_TB_FPU (1 << 17)
#define CPU_LOG_PLUGIN (1 << 18)
/* LOG_STRACE is used for user-mode strace logging. */
#define LOG_STRACE (1 << 19)
#define LOG_PER_THREAD (1 << 20)
/* Lock/unlock output. */
FILE *qemu_log_trylock(void) G_GNUC_WARN_UNUSED_RESULT;
void qemu_log_unlock(FILE *fd);
/* Logging functions: */
/* log only if a bit is set on the current loglevel mask:
* @mask: bit to check in the mask
* @fmt: printf-style format string
* @args: optional arguments for format string
*/
#define qemu_log_mask(MASK, FMT, ...) \
do { \
if (unlikely(qemu_loglevel_mask(MASK))) { \
qemu_log(FMT, ## __VA_ARGS__); \
} \
} while (0)
/* log only if a bit is set on the current loglevel mask
* and we are in the address range we care about:
* @mask: bit to check in the mask
* @addr: address to check in dfilter
* @fmt: printf-style format string
* @args: optional arguments for format string
*/
#define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...) \
do { \
if (unlikely(qemu_loglevel_mask(MASK)) && \
qemu_log_in_addr_range(ADDR)) { \
qemu_log(FMT, ## __VA_ARGS__); \
} \
} while (0)
/* Maintenance: */
/* define log items */
typedef struct QEMULogItem {
int mask;
const char *name;
const char *help;
} QEMULogItem;
extern const QEMULogItem qemu_log_items[];
bool qemu_set_log(int log_flags, Error **errp);
bool qemu_set_log_filename(const char *filename, Error **errp);
bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp);
void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
bool qemu_log_in_addr_range(uint64_t addr);
int qemu_str_to_log_mask(const char *str);
/* Print a usage message listing all the valid logging categories
* to the specified FILE*.
*/
void qemu_print_log_usage(FILE *f);
#endif