mirror of
https://github.com/qemu/qemu.git
synced 2024-12-16 16:53:28 +08:00
347701879c
Currently the generated-events.[ch] files contain the event dstates, constants and TraceEvent structs, while the generated-tracers.[ch] files contain the actual trace probe logic. With the removal of usage of the event enums from the API there is no longer any compelling reason for the separation between these files. The generated-events.h content is only ever needed from the generated-tracers.[ch] files. The enums/constants/structs from generated-events.[ch] are thus moved into the generated-tracers.[ch], so that there is one less file to be generated. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1475588159-30598-17-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*
|
|
* Simple trace backend
|
|
*
|
|
* Copyright IBM, Corp. 2010
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
|
* the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#ifndef TRACE_SIMPLE_H
|
|
#define TRACE_SIMPLE_H
|
|
|
|
void st_print_trace_file_status(FILE *stream, fprintf_function stream_printf);
|
|
void st_set_trace_file_enabled(bool enable);
|
|
void st_set_trace_file(const char *file);
|
|
bool st_init(void);
|
|
void st_flush_trace_buffer(void);
|
|
|
|
typedef struct {
|
|
unsigned int tbuf_idx;
|
|
unsigned int rec_off;
|
|
} TraceBufferRecord;
|
|
|
|
/* Note for hackers: Make sure MAX_TRACE_LEN < sizeof(uint32_t) */
|
|
#define MAX_TRACE_STRLEN 512
|
|
/**
|
|
* Initialize a trace record and claim space for it in the buffer
|
|
*
|
|
* @arglen number of bytes required for arguments
|
|
*/
|
|
int trace_record_start(TraceBufferRecord *rec, uint32_t id, size_t arglen);
|
|
|
|
/**
|
|
* Append a 64-bit argument to a trace record
|
|
*/
|
|
void trace_record_write_u64(TraceBufferRecord *rec, uint64_t val);
|
|
|
|
/**
|
|
* Append a string argument to a trace record
|
|
*/
|
|
void trace_record_write_str(TraceBufferRecord *rec, const char *s, uint32_t slen);
|
|
|
|
/**
|
|
* Mark a trace record completed
|
|
*
|
|
* Don't append any more arguments to the trace record after calling this.
|
|
*/
|
|
void trace_record_finish(TraceBufferRecord *rec);
|
|
|
|
#endif /* TRACE_SIMPLE_H */
|