X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fltt-private.h;h=b26d078ef16a46834c9798c9da32528ece117723;hb=f4e57537eda6120c0d1b9c46bbb8d510ce6e09d9;hp=9e263c565b2675bbb5422cb3292eb04a8874b38f;hpb=791dffa6f060fe553546337fde7ed58a16f41178;p=lttv.git diff --git a/ltt/branches/poly/ltt/ltt-private.h b/ltt/branches/poly/ltt/ltt-private.h index 9e263c56..b26d078e 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 @@ -23,12 +24,17 @@ #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 @@ -47,92 +53,32 @@ #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_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 long_size; - guint32 pointer_size; - guint32 size_t_size; - guint32 alignment; -} LTT_PACKED_STRUCT; - -struct LttFacilityUnload { - guint32 id; -} LTT_PACKED_STRUCT; - -struct LttStateDumpFacilityLoad { - guint32 checksum; - guint32 id; - guint32 long_size; - guint32 pointer_size; - guint32 size_t_size; - guint32 alignment; -} LTT_PACKED_STRUCT; - -typedef struct _TimeHeartbeat { - LttTime time; //Time stamp of this block - uint64_t cycle_count; //cycle count of the event -} 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; @@ -149,30 +95,11 @@ struct ltt_trace_header_any { uint8_t minor_version; uint8_t flight_recorder; uint8_t has_heartbeat; - uint8_t has_alignment; /* Event header alignment */ - uint8_t has_tsc; + uint8_t 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 */ - uint8_t has_tsc; -} LTT_PACKED_STRUCT; - -/* For version 0.4 */ - -struct ltt_trace_header_0_4 { +struct ltt_trace_header_1_0 { uint32_t magic_number; uint32_t arch_type; uint32_t arch_variant; @@ -182,23 +109,25 @@ struct ltt_trace_header_0_4 { uint8_t minor_version; uint8_t flight_recorder; uint8_t has_heartbeat; - uint8_t has_alignment; /* Event header alignment */ - uint8_t has_tsc; + 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; uint64_t start_monotonic; - struct timespec start_time; + uint64_t start_time_sec; + uint64_t start_time_usec; } LTT_PACKED_STRUCT; struct ltt_block_start_header { struct { - uint64_t timestamp; uint64_t cycle_count; uint64_t freq; } begin; struct { - uint64_t timestamp; uint64_t cycle_count; uint64_t freq; } end; @@ -208,135 +137,8 @@ struct ltt_block_start_header { } LTT_PACKED_STRUCT; -struct _LttType{ - GQuark type_name; //type name if it is a named type - GQuark element_name; //elements name of the struct - gchar * fmt; - unsigned int 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 -}; - -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 -}; - -/* 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 */ - - 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 - 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{ - //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. -}; - - -struct _LttFacility{ - LttTrace *trace; - //gchar * name; //facility name - GQuark name; - guint32 checksum; //checksum of the facility - guint32 id; //id of the facility - - guint32 pointer_size; - guint32 long_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; - - unsigned char exists; /* 0 does not exist, 1 exists */ -}; - typedef struct _LttBuffer { void * head; unsigned int index; @@ -360,29 +162,42 @@ typedef struct _LttBuffer { 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 + 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 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 @@ -395,37 +210,10 @@ 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. */ - 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; - guint8 has_alignment; - guint8 has_tsc; - uint64_t start_freq; - uint64_t start_tsc; - uint64_t start_monotonic; - LttTime start_time; - - 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; @@ -453,4 +241,25 @@ struct _LttSystemDescription { //#define EVENT_HEADER_SIZE (TIMESTAMP_SIZE + EVENT_ID_SIZE) +//off_t get_alignment(LttField *field); + +/* Calculate the offset needed to align the type. + * If alignment is 0, alignment is disactivated. + * else, the function returns the offset needed to + * 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 alignment) +{ + 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)); +} + + #endif /* LTT_PRIVATE_H */