#include <sys/types.h>
#include <ltt/ltt.h>
#include <endian.h>
-
+#include <ltt/event.h>
+#include <ltt/marker.h>
+#include <ltt/trace.h>
#ifndef max
#define max(a,b) ((a)>(b)?(a):(b))
LTT_EVENT_FACILITY_LOAD,
LTT_EVENT_FACILITY_UNLOAD,
LTT_EVENT_HEARTBEAT,
+ LTT_EVENT_HEARTBEAT_FULL,
LTT_EVENT_STATE_DUMP_FACILITY_LOAD
};
-#if 0
-/* enumeration definition */
-
-typedef enum _BuildinEvent{
- TRACE_FACILITY_LOAD = 0,
- TRACE_BLOCK_START = 17,
- TRACE_BLOCK_END = 18,
- TRACE_TIME_HEARTBEAT= 19
-} BuildinEvent;
-
-
-/* structure definition */
-
-typedef struct _FacilityLoad{
- gchar * name;
- LttChecksum checksum;
- guint32 base_code;
-} LTT_PACKED_STRUCT FacilityLoad;
-
-typedef struct _BlockStart {
- LttTime time; //Time stamp of this block
- LttCycleCount cycle_count; //cycle count of the event
- guint32 block_id; //block id
-} LTT_PACKED_STRUCT BlockStart;
-
-typedef struct _BlockEnd {
- LttTime time; //Time stamp of this block
- LttCycleCount cycle_count; //cycle count of the event
- guint32 block_id; //block id
-} LTT_PACKED_STRUCT BlockEnd;
-#endif //0
-
-
typedef guint8 uint8_t;
typedef guint16 uint16_t;
typedef guint32 uint32_t;
typedef guint64 uint64_t;
-/* Hardcoded facility load event : this plus an preceding "name" string */
-struct LttFacilityLoad {
- guint32 checksum;
- guint32 id;
- guint32 int_size;
- guint32 long_size;
- guint32 pointer_size;
- guint32 size_t_size;
- guint32 has_alignment;
-} LTT_PACKED_STRUCT;
-
-struct LttFacilityUnload {
- guint32 id;
-} LTT_PACKED_STRUCT;
-
-struct LttStateDumpFacilityLoad {
- guint32 checksum;
- guint32 id;
- guint32 int_size;
- guint32 long_size;
- guint32 pointer_size;
- guint32 size_t_size;
- guint32 has_alignment;
-} LTT_PACKED_STRUCT;
-
-/* Empty event */
-typedef struct _TimeHeartbeat {
-} LTT_PACKED_STRUCT TimeHeartbeat;
-
struct ltt_event_header_hb {
uint32_t timestamp;
- unsigned char facility_id;
- unsigned char event_id;
+ uint16_t event_id;
uint16_t event_size;
} LTT_PACKED_STRUCT;
struct ltt_event_header_nohb {
uint64_t timestamp;
- unsigned char facility_id;
- unsigned char event_id;
+ uint16_t event_id;
uint16_t event_size;
} LTT_PACKED_STRUCT;
uint8_t minor_version;
uint8_t flight_recorder;
uint8_t has_heartbeat;
- uint8_t has_alignment; /* Event header alignment */
- uint32_t freq_scale;
-} LTT_PACKED_STRUCT;
-
-
-/* For version 0.3 */
-
-struct ltt_trace_header_0_3 {
- uint32_t magic_number;
- uint32_t arch_type;
- uint32_t arch_variant;
- uint32_t float_word_order;
- uint8_t arch_size;
- uint8_t major_version;
- uint8_t minor_version;
- uint8_t flight_recorder;
- uint8_t has_heartbeat;
- uint8_t has_alignment; /* Event header alignment */
- uint32_t freq_scale;
+ uint8_t alignment; /* Event header alignment */
+ uint32_t freq_scale;
} LTT_PACKED_STRUCT;
-/* For version 0.7 */
-
-struct ltt_trace_header_0_7 {
+struct ltt_trace_header_1_0 {
uint32_t magic_number;
uint32_t arch_type;
uint32_t arch_variant;
uint8_t minor_version;
uint8_t flight_recorder;
uint8_t has_heartbeat;
- uint8_t has_alignment; /* Event header alignment */
+ uint8_t alignment; /* Event header alignment */
+ uint8_t tsc_lsb_truncate;
+ uint8_t tscbits;
+ uint8_t compact_data_shift;
uint32_t freq_scale;
uint64_t start_freq;
uint64_t start_tsc;
} LTT_PACKED_STRUCT;
-struct _LttType{
-// LTTV does not care about type names. Everything is a field.
-// GQuark type_name; //type name if it is a named type
- gchar * fmt;
- guint size;
- LttTypeEnum type_class; //which type
- GHashTable *enum_map; //maps enum labels to numbers.
- GArray *fields; // Array of LttFields, for array, sequence, union, struct.
- GData *fields_by_name;
- guint network; // Is the type in network byte order ?
-};
-
-struct _LttEventType{
- GQuark name;
- gchar * description;
- guint index; //id of the event type within the facility
- LttFacility * facility; //the facility that contains the event type
- GArray * fields; //event's fields (LttField)
- GData *fields_by_name;
-};
-
-/* Structure LttEvent and LttEventPosition must begin with the _exact_ same
- * fields in the exact same order. LttEventPosition is a parent of LttEvent. */
-struct _LttEvent{
-
- /* Begin of LttEventPosition fields */
- LttTracefile *tracefile;
- unsigned int block;
- unsigned int offset;
-
- /* Timekeeping */
- uint64_t tsc; /* Current timestamp counter */
-
- /* End of LttEventPosition fields */
-
- guint32 timestamp; /* truncated timestamp */
-
- unsigned char facility_id; /* facility ID are never reused. */
- unsigned char event_id;
-
- LttTime event_time;
-
- void * data; //event data
- guint data_size;
- guint event_size; //event_size field of the header :
- //used to verify data_size from facility.
-
- int count; //the number of overflow of cycle count
- gint64 overflow_nsec; //precalculated nsec for overflows
-};
-
-struct _LttEventPosition{
- LttTracefile *tracefile;
- unsigned int block;
- unsigned int offset;
-
- /* Timekeeping */
- uint64_t tsc; /* Current timestamp counter */
-};
-
-
enum field_status { FIELD_UNKNOWN, FIELD_VARIABLE, FIELD_FIXED };
-struct _LttField{
- GQuark name;
- gchar *description;
- LttType field_type; //field type
-
- off_t offset_root; //offset from the root
- enum field_status fixed_root; //offset fixed according to the root
-
- guint field_size; // size of the field
- // Only if field type size is set to 0
- // (it's variable), then the field_size should be
- // dynamically calculated while reading the trace
- // and put here. Otherwise, the field_size always
- // equels the type size.
- off_t array_offset; // offset of the beginning of the array (for array
- // and sequences)
- GArray * dynamic_offsets; // array of offsets calculated dynamically at
- // each event for sequences and arrays that
- // contain variable length fields.
-};
-
-struct _LttFacility{
- LttTrace *trace;
- GQuark name;
- guint32 checksum; //checksum of the facility
- guint32 id; //id of the facility
-
- guint32 int_size;
- guint32 long_size;
- guint32 pointer_size;
- guint32 size_t_size;
- guint32 alignment;
-
- GArray *events;
- GData *events_by_name;
- // not necessary in LTTV GData *named_types;
-
- unsigned char exists; /* 0 does not exist, 1 exists */
-};
-
typedef struct _LttBuffer {
void * head;
unsigned int index;
guint32 cyc2ns_scale;
} LttBuffer;
-struct _LttTracefile{
+struct LttTracefile {
gboolean cpu_online; //is the cpu online ?
GQuark long_name; //tracefile complete filename
GQuark name; //tracefile name
guint cpu_num; //cpu number of the tracefile
- guint tid; //Usertrace tid, else 0
- guint pgid; //Usertrace pgid, else 0
- guint64 creation; //Usertrace creation, else 0
+ guint tid; //Usertrace tid, else 0
+ guint pgid; //Usertrace pgid, else 0
+ guint64 creation; //Usertrace creation, else 0
LttTrace * trace; //trace containing the tracefile
int fd; //file descriptor
off_t file_size; //file size
guint num_blocks; //number of blocks in the file
gboolean reverse_bo; //must we reverse byte order ?
gboolean float_word_order; //what is the byte order of floats ?
- size_t has_alignment; //alignment of events in the tracefile.
- // 0 or the architecture size in bytes.
+ size_t alignment; //alignment of events in the tracefile.
+ // 0 or the architecture size in bytes.
+ guint8 has_heartbeat;
size_t buffer_header_size;
-
- /* Current event */
+ int compact; //compact tracefile ?
+ uint8_t tsc_lsb_truncate;
+ uint8_t tscbits;
+ uint8_t tsc_msb_cutoff;
+ uint8_t compact_event_bits;
+ uint64_t tsc_mask;
+ uint64_t tsc_mask_next_bit; //next MSB after the mask
+
+ /* Current event */
LttEvent event; //Event currently accessible in the trace
- /* Current block */
+ /* Current block */
LttBuffer buffer; //current buffer
guint32 buf_size; /* The size of blocks */
- /* Time flow */
+ /* Time flow */
//unsigned int count; //the number of overflow of cycle count
//double nsec_per_cycle; //Nsec per cycle
//TimeHeartbeat * last_heartbeat; //last heartbeat
//LttCycleCount pre_cycle_count; //previous cycle count of the event
};
-struct _LttTrace{
- GQuark pathname; //the pathname of the trace
- //LttSystemDescription * system_description;//system description
-
- GArray *facilities_by_num; /* fac_id as index in array */
- GData *facilities_by_name; /* fac name (GQuark) as index */
- /* Points to array of fac_id of all the
- * facilities that has this name. */
- guint num_cpu;
-
- guint32 arch_type;
- guint32 arch_variant;
- guint8 arch_size;
- guint8 ltt_major_version;
- guint8 ltt_minor_version;
- guint8 flight_recorder;
- guint8 has_heartbeat;
- guint32 freq_scale;
- uint64_t start_freq;
- uint64_t start_tsc;
- uint64_t start_monotonic;
- LttTime start_time;
- LttTime start_time_from_tsc;
-
- GData *tracefiles; //tracefiles groups
-};
-
/* The characteristics of the system on which the trace was obtained
is described in a LttSystemDescription structure. */
-struct _LttSystemDescription {
+struct LttSystemDescription {
gchar *description;
gchar *node_name;
gchar *domain_name;
//#define EVENT_HEADER_SIZE (TIMESTAMP_SIZE + EVENT_ID_SIZE)
-off_t get_alignment(LttField *field);
+//off_t get_alignment(LttField *field);
/* Calculate the offset needed to align the type.
- * If has_alignment is 0, alignment is disactivated.
+ * If alignment is 0, alignment is disactivated.
* else, the function returns the offset needed to
- * align align_drift on the has_alignment value (should be
+ * align align_drift on the alignment value (should be
* the size of the architecture). */
static inline unsigned int ltt_align(size_t align_drift,
size_t size_of_type,
- size_t has_alignment)
+ size_t alignment)
{
- size_t alignment = min(has_alignment, size_of_type);
-
- if(!has_alignment) return 0;
-
- g_assert(size_of_type != 0);
- return ((alignment - align_drift) & (alignment-1));
+ size_t align_offset = min(alignment, size_of_type);
+
+ if(!alignment)
+ return 0;
+
+ g_assert(size_of_type != 0);
+ return ((align_offset - align_drift) & (align_offset-1));
}
projects / lttv.git / blobdiff