Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
#ifndef QEMU_LOG_H
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#define QEMU_LOG_H
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/* A small part of this API is split into its own header */
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#include "qemu/log-for-trace.h"
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/*
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* The new API:
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*/
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/* Returns true if qemu_log() will really write somewhere. */
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bool qemu_log_enabled(void);
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/* Returns true if qemu_log() will write somewhere other than stderr. */
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bool qemu_log_separate(void);
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#define CPU_LOG_TB_OUT_ASM (1u << 0)
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#define CPU_LOG_TB_IN_ASM (1u << 1)
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#define CPU_LOG_TB_OP (1u << 2)
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#define CPU_LOG_TB_OP_OPT (1u << 3)
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#define CPU_LOG_INT (1u << 4)
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#define CPU_LOG_EXEC (1u << 5)
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#define CPU_LOG_PCALL (1u << 6)
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#define CPU_LOG_TB_CPU (1u << 8)
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#define CPU_LOG_RESET (1u << 9)
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#define LOG_UNIMP (1u << 10)
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#define LOG_GUEST_ERROR (1u << 11)
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#define CPU_LOG_MMU (1u << 12)
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#define CPU_LOG_TB_NOCHAIN (1u << 13)
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#define CPU_LOG_PAGE (1u << 14)
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/* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
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#define CPU_LOG_TB_OP_IND (1u << 16)
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#define CPU_LOG_TB_FPU (1u << 17)
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#define CPU_LOG_PLUGIN (1u << 18)
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/* LOG_STRACE is used for user-mode strace logging. */
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#define LOG_STRACE (1u << 19)
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#define LOG_PER_THREAD (1u << 20)
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#define CPU_LOG_TB_VPU (1u << 21)
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#define LOG_TB_OP_PLUGIN (1u << 22)
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#define LOG_INVALID_MEM (1u << 23)
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/* Lock/unlock output. */
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/**
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* Acquires a lock on the current log output stream.
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* The returned FILE object should be used with the
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* fprintf() function to output the log message, and
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* then qemu_log_unlock() called to release the lock.
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*
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* The primary use case is to be able to incrementally
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* output fragments of a complete log message in an
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* efficient and race free manner.
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*
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* The simpler qemu_log() method should normally only
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* be used to output complete log messages, and not
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* within scope of a qemu_log_trylock() call.
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*
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* A typical usage pattern would be
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*
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* FILE *f = qemu_log_trylock()
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*
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* fprintf(f, "Something ");
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* fprintf(f, "Something ");
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* fprintf(f, "Something ");
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* fprintf(f, "The end\n");
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*
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* qemu_log_unlock(f);
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*
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* Returns: the current FILE if available, NULL on error
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*/
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FILE *qemu_log_trylock(void) G_GNUC_WARN_UNUSED_RESULT;
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/**
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* As qemu_log_trylock(), but will also print the message
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* context, if any is configured and this caused the
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* acquisition of the FILE lock
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*/
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FILE *qemu_log_trylock_with_context(void) G_GNUC_WARN_UNUSED_RESULT;
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/**
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* Releases the lock on the log output, previously
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* acquired by qemu_log_trylock().
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*/
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void qemu_log_unlock(FILE *fd);
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/* Logging functions: */
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/* log only if a bit is set on the current loglevel mask:
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* @mask: bit to check in the mask
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* @fmt: printf-style format string
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* @args: optional arguments for format string
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*/
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#define qemu_log_mask(MASK, FMT, ...) \
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do { \
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if (unlikely(qemu_loglevel_mask(MASK))) { \
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qemu_log(FMT, ## __VA_ARGS__); \
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} \
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} while (0)
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/* log only if a bit is set on the current loglevel mask
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* and we are in the address range we care about:
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* @mask: bit to check in the mask
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* @addr: address to check in dfilter
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* @fmt: printf-style format string
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* @args: optional arguments for format string
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*/
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#define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...) \
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do { \
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if (unlikely(qemu_loglevel_mask(MASK)) && \
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qemu_log_in_addr_range(ADDR)) { \
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qemu_log(FMT, ## __VA_ARGS__); \
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} \
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} while (0)
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/* Maintenance: */
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/* define log items */
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typedef struct QEMULogItem {
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int mask;
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const char *name;
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const char *help;
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} QEMULogItem;
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extern const QEMULogItem qemu_log_items[];
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ssize_t rust_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
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bool qemu_set_log(int log_flags, Error **errp);
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bool qemu_set_log_filename(const char *filename, Error **errp);
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bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp);
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void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
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bool qemu_log_in_addr_range(uint64_t addr);
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int qemu_str_to_log_mask(const char *str);
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/* Print a usage message listing all the valid logging categories
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* to the specified FILE*.
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*/
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void qemu_print_log_usage(FILE *f);
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#endif
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