X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fltt-private.h;h=9b9d2f5079f0719e285af7b9d2bd6cd3077a9909;hb=56cb41d3c4d74fc7b78e97af2ffb08af0f043e76;hp=4040433df432cae199464a2f467b1da30c0dfb15;hpb=f628823c5712cc8b8bfe10ade63b6c7c2862f5e5;p=lttv.git diff --git a/ltt/branches/poly/ltt/ltt-private.h b/ltt/branches/poly/ltt/ltt-private.h index 4040433d..9b9d2f50 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 @@ -22,12 +23,18 @@ #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 @@ -38,7 +45,16 @@ /* 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, @@ -90,10 +106,11 @@ typedef guint64 uint64_t; 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 { @@ -103,15 +120,15 @@ struct LttFacilityUnload { 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; struct ltt_event_header_hb { @@ -128,54 +145,96 @@ struct ltt_event_header_nohb { uint16_t event_size; } 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; + + +/* 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; - //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; + 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; + +/* For version 0.7 */ + +struct ltt_trace_header_0_7 { + 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; + 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; + struct ltt_trace_header_any trace[0]; } LTT_PACKED_STRUCT; 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. + 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 + guint index; //id of the event type within the facility LttFacility * facility; //the facility that contains the event type - LttField * root_field; //root field + GArray * fields; //event's fields (LttField) + GData *fields_by_name; }; /* Structure LttEvent and LttEventPosition must begin with the _exact_ same @@ -192,10 +251,7 @@ struct _LttEvent{ /* End of LttEventPosition fields */ - union { /* choice by trace has_tsc */ - guint32 timestamp; /* truncated timestamp */ - LttTime delta; - } time; + guint32 timestamp; /* truncated timestamp */ unsigned char facility_id; /* facility ID are never reused. */ unsigned char event_id; @@ -224,65 +280,41 @@ struct _LttEventPosition{ 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. + 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; - //gchar * name; //facility name GQuark name; guint32 checksum; //checksum of the facility guint32 id; //id of the facility - guint32 pointer_size; + 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 */ }; @@ -294,16 +326,20 @@ 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{ @@ -311,12 +347,20 @@ struct _LttTracefile{ 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 has_alignment; //alignment of events in the tracefile. + // 0 or the architecture size in bytes. + + size_t buffer_header_size; /* Current event */ LttEvent event; //Event currently accessible in the trace @@ -345,7 +389,8 @@ struct _LttTrace{ 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. */ + * facilities that has this name. */ + guint num_cpu; guint32 arch_type; guint32 arch_variant; @@ -354,8 +399,12 @@ struct _LttTrace{ guint8 ltt_minor_version; guint8 flight_recorder; guint8 has_heartbeat; - guint8 has_alignment; - guint8 has_tsc; + 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 }; @@ -390,7 +439,25 @@ 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 */