X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fltt-private.h;h=c37fd0b0fc7e0811875b5e4beb10da783f8e892f;hb=29af7cfdc9979121f09db4ba7c154f52d0fb518e;hp=25692fae06a488161bc465566b87ad19c1da64b1;hpb=3aee1200b100fe8063661fd2d8eaa5fbbfc1977f;p=lttv.git diff --git a/ltt/branches/poly/ltt/ltt-private.h b/ltt/branches/poly/ltt/ltt-private.h index 25692fae..c37fd0b0 100644 --- a/ltt/branches/poly/ltt/ltt-private.h +++ b/ltt/branches/poly/ltt/ltt-private.h @@ -1,19 +1,20 @@ /* This file is part of the Linux Trace Toolkit viewer * Copyright (C) 2003-2004 Xiangxiu Yang + * 2006 Mathieu Desnoyers * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License Version 2 as - * published by the Free Software Foundation; + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License Version 2.1 as published by the Free Software Foundation. * - * This program is distributed in the hope that it will be useful, + * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. */ #ifndef LTT_PRIVATE_H @@ -22,6 +23,20 @@ #include #include #include +#include +#include +#include +#include + +#ifndef max +#define max(a,b) ((a)>(b)?(a):(b)) +#endif + +#ifndef min +#define min(a,b) ((a)<(b)?(a):(b)) +#endif + + #define LTT_MAGIC_NUMBER 0x00D6B7ED #define LTT_REV_MAGIC_NUMBER 0xEDB7D600 @@ -30,17 +45,25 @@ #define LTT_PACKED_STRUCT __attribute__ ((packed)) -#define NUM_FACILITIES 256 - /* Hardcoded facilities */ #define LTT_FACILITY_CORE 0 + +/* Byte ordering */ +#define LTT_GET_BO(t) ((t)->reverse_bo) +#define LTT_HAS_FLOAT(t) ((t)->float_word_order!=0) +#define LTT_GET_FLOAT_BO(t) \ + (((t)->float_word_order==__BYTE_ORDER)?0:1) + +#define SEQUENCE_AVG_ELEMENTS 1000 + /* Hardcoded core events */ enum ltt_core_events { LTT_EVENT_FACILITY_LOAD, LTT_EVENT_FACILITY_UNLOAD, - LTT_EVENT_STATE_DUMP_FACILITY_LOAD, - LTT_EVENT_HEARTBEAT + LTT_EVENT_HEARTBEAT, + LTT_EVENT_HEARTBEAT_FULL, + LTT_EVENT_STATE_DUMP_FACILITY_LOAD }; @@ -82,204 +105,181 @@ typedef guint16 uint16_t; typedef guint32 uint32_t; typedef guint64 uint64_t; -/* Hardcoded facility load event : this plus an following "name" string */ +/* 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 alignment; -}; + 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 alignment; -}; - - + guint32 has_alignment; +} LTT_PACKED_STRUCT; +/* Empty event */ typedef struct _TimeHeartbeat { - LttTime time; //Time stamp of this block - uint64_t cycle_count; //cycle count of the event } LTT_PACKED_STRUCT TimeHeartbeat; +typedef struct _TimeHeartbeatFull { + guint64 tsc; +} LTT_PACKED_STRUCT TimeHeartbeatFull; + struct ltt_event_header_hb { uint32_t timestamp; - unsigned char facility_id; - unsigned char event_id; + uint16_t event_id; uint16_t event_size; -} __attribute((aligned(8))); +} 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; -} __attribute((aligned(8))); +} LTT_PACKED_STRUCT; + -struct ltt_trace_header { +/* Block and trace headers */ + +struct ltt_trace_header_any { + 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; +} LTT_PACKED_STRUCT; + +struct ltt_trace_header_1_0 { uint32_t magic_number; uint32_t arch_type; uint32_t arch_variant; + uint32_t float_word_order; uint8_t arch_size; - //uint32_t system_type; - uint8_t major_version; - uint8_t minor_version; - uint8_t flight_recorder; - uint8_t has_heartbeat; - uint8_t has_alignment; /* Event header alignment */ - uint8_t has_tsc; -} __attribute((aligned(8))); + uint8_t major_version; + uint8_t minor_version; + uint8_t flight_recorder; + uint8_t has_heartbeat; + uint8_t has_alignment; /* Event header alignment */ + uint8_t tsc_lsb_truncate; + uint8_t tscbits; + uint32_t freq_scale; + uint64_t start_freq; + uint64_t start_tsc; + uint64_t start_monotonic; + uint64_t start_time_sec; + uint64_t start_time_usec; +} LTT_PACKED_STRUCT; struct ltt_block_start_header { struct { - struct timeval timestamp; uint64_t cycle_count; + uint64_t freq; } begin; struct { - struct timeval timestamp; uint64_t cycle_count; + uint64_t freq; } end; uint32_t lost_size; /* Size unused at the end of the buffer */ uint32_t buf_size; /* The size of this sub-buffer */ - struct ltt_trace_header trace; -} __attribute((aligned(8))); + struct ltt_trace_header_any trace[0]; +} LTT_PACKED_STRUCT; +#if 0 struct _LttType{ - GQuark type_name; //type name if it is a named type - GQuark element_name; //elements name of the struct +// LTTV does not care about type names. Everything is a field. +// GQuark type_name; //type name if it is a named type gchar * fmt; - unsigned int size; + guint size; LttTypeEnum type_class; //which type - GQuark * enum_strings; //for enum labels - struct _LttType ** element_type; //for array, sequence and struct - unsigned element_number; //the number of elements - //for enum, array, sequence and structure + GHashTable *enum_map; //maps enum labels to numbers. + gint32 highest_value; //For enum + gint32 lowest_value; //For enum + GArray *fields; // Array of LttFields, for array, sequence, union, struct. + GData *fields_by_name; + guint network; // Is the type in network byte order ? + //part added by gaby for fmt: + char *header; + char *separator; + char *footer; }; +#endif //0 +#if 0 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 - LttField * root_field; //root field + guint index; //id of the event type within the facility + struct marker_info *info; + GArray * fields; //event's fields (LttField) + GData *fields_by_name; + int has_compact_data; //event header contains compact data (first field) }; - -/* 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; - void *offset; - - /* Timekeeping */ - uint64_t tsc; /* Current timestamp counter */ - - /* End of LttEventPosition fields */ - - union { /* choice by trace has_tsc */ - guint32 timestamp; /* truncated timestamp */ - LttTime delta; - } time; - - unsigned char facility_id; /* facility ID are never reused. */ - unsigned char event_id; - - LttTime event_time; - - void * data; //event data - - int count; //the number of overflow of cycle count - gint64 overflow_nsec; //precalculated nsec for overflows -}; - -struct _LttEventPosition{ - LttTracefile *tracefile; - unsigned int block; - void *offset; - - /* Timekeeping */ - uint64_t tsc; /* Current timestamp counter */ -}; - +#endif //0 enum field_status { FIELD_UNKNOWN, FIELD_VARIABLE, FIELD_FIXED }; +#if 0 struct _LttField{ - //guint field_pos; //field position within its parent - LttType * field_type; //field type, if it is root field - //then it must be struct type - - off_t offset_root; //offset from the root, -1:uninitialized - enum field_status fixed_root; //offset fixed according to the root - //-1:uninitialized, 0:unfixed, 1:fixed - off_t offset_parent; //offset from the parent,-1:uninitialized - enum field_status fixed_parent; //offset fixed according to its parent - //-1:uninitialized, 0:unfixed, 1:fixed - // void * base_address; //base address of the field ???? - - guint field_size; // //>0: size of the field, - // //0 : uncertain - // //-1: uninitialize - enum field_status fixed_size; - - /* for sequence */ - gint sequ_number_size; //the size of unsigned used to save the - //number of elements in the sequence - - gint element_size; //the element size of the sequence - //int field_fixed; //0: field has string or sequence - //1: field has no string or sequenc - //-1: uninitialize - - struct _LttField * parent; - struct _LttField ** child; //for array, sequence, struct and union: - //list of fields, it may have only one - //field if the element is not a struct or - //union - unsigned current_element; //which element is currently processed - // Used for sequences and arrays. + 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 + // equals 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. }; - - +#endif //0 +#if 0 struct _LttFacility{ LttTrace *trace; - //gchar * name; //facility name 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; - - //LttEventType ** events; //array of event types - //unsigned int event_number; //number of events in the facility - //LttType ** named_types; - //unsigned int named_types_number; - GArray *events; GData *events_by_name; - // GArray *named_types; - //GData *named_types_by_name; - GData *named_types; + // not necessary in LTTV GData *named_types; unsigned char exists; /* 0 does not exist, 1 exists */ }; +#endif //0 typedef struct _LttBuffer { void * head; @@ -288,37 +288,57 @@ typedef struct _LttBuffer { struct { LttTime timestamp; uint64_t cycle_count; + uint64_t freq; /* Frequency in khz */ } begin; struct { LttTime timestamp; uint64_t cycle_count; + uint64_t freq; /* Frequency in khz */ } end; uint32_t lost_size; /* Size unused at the end of the buffer */ /* Timekeeping */ uint64_t tsc; /* Current timestamp counter */ - double nsecs_per_cycle; + uint64_t freq; /* Frequency in khz */ + //double nsecs_per_cycle; /* Precalculated from freq */ + 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 LttTrace * trace; //trace containing the tracefile int fd; //file descriptor off_t file_size; //file size - unsigned block_size; //block_size - unsigned int num_blocks; //number of blocks in the file + //unsigned block_size; //block_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. - /* Current event */ + guint8 has_heartbeat; + size_t buffer_header_size; + int compact; //compact tracefile ? + uint8_t tsc_lsb_truncate; + uint8_t tscbits; + uint8_t tsc_msb_cutoff; + 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 @@ -331,29 +351,10 @@ struct _LttTracefile{ //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. */ - - guint8 ltt_major_version; - guint8 ltt_minor_version; - guint8 flight_recorder; - guint8 has_heartbeat; - // guint8 alignment; - guint8 has_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; @@ -380,7 +381,25 @@ struct _LttSystemDescription { //#define EVENT_ID_SIZE sizeof(guint16) //#define EVENT_HEADER_SIZE (TIMESTAMP_SIZE + EVENT_ID_SIZE) -#define LTT_GET_BO(t) ((t)->reverse_bo) + +//off_t get_alignment(LttField *field); + +/* Calculate the offset needed to align the type. + * If has_alignment is 0, alignment is disactivated. + * else, the function returns the offset needed to + * align align_drift on the has_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 = min(has_alignment, size_of_type); + + if(!has_alignment) return 0; + + g_assert(size_of_type != 0); + return ((alignment - align_drift) & (alignment-1)); +} #endif /* LTT_PRIVATE_H */