+++ /dev/null
-/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2003-2004 Xiangxiu Yang
- * 2006 Mathieu Desnoyers
- *
- * 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 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
- * Lesser General Public License for more details.
- *
- * 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
-#define LTT_PRIVATE_H
-
-#include <glib.h>
-#include <sys/types.h>
-#include <ltt/ltt.h>
-#include <endian.h>
-#include <ltt/event.h>
-
-#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
-
-#define NSEC_PER_USEC 1000
-
-/* 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
-
-/*
- * offsetof taken from Linux kernel.
- */
-#undef offsetof
-#ifdef __compiler_offsetof
-#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
-#else
-#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-#endif
-
-typedef guint8 uint8_t;
-typedef guint16 uint16_t;
-typedef guint32 uint32_t;
-typedef guint64 uint64_t;
-
-/* Subbuffer header */
-struct ltt_subbuffer_header_2_6 {
- uint64_t cycle_count_begin; /* Cycle count at subbuffer start */
- uint64_t cycle_count_end; /* Cycle count at subbuffer end */
- uint32_t magic_number; /*
- * Trace magic number.
- * contains endianness information.
- */
- uint8_t major_version;
- uint8_t minor_version;
- uint8_t arch_size; /* Architecture pointer size */
- uint8_t alignment; /* LTT data alignment */
- uint64_t start_time_sec; /* NTP-corrected start time */
- uint64_t start_time_usec;
- uint64_t start_freq; /*
- * Frequency at trace start,
- * used all along the trace.
- */
- uint32_t freq_scale; /* Frequency scaling (divide freq) */
- uint32_t data_size; /* Size of data in subbuffer */
- uint32_t sb_size; /* Subbuffer size (page aligned) */
- uint32_t events_lost; /*
- * Events lost in this subbuffer since
- * the beginning of the trace.
- * (may overflow)
- */
- uint32_t subbuf_corrupt; /*
- * Corrupted (lost) subbuffers since
- * the begginig of the trace.
- * (may overflow)
- */
- char header_end[0]; /* End of header */
-};
-
-typedef struct ltt_subbuffer_header_2_6 ltt_subbuffer_header_t;
-
-/*
- * Return header size without padding after the structure. Don't use packed
- * structure because gcc generates inefficient code on some architectures
- * (powerpc, mips..)
- */
-static inline size_t ltt_subbuffer_header_size(void)
-{
- return offsetof(ltt_subbuffer_header_t, header_end);
-}
-
-enum field_status { FIELD_UNKNOWN, FIELD_VARIABLE, FIELD_FIXED };
-
-typedef struct _LttBuffer {
- void * head;
- guint64 offset; /* Offset of the current subbuffer */
- guint32 size; /* The size of the current subbuffer */
- unsigned int index;
- uint32_t data_size; /* Size of data in the subbuffer */
-
- 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;
-
- /* Timekeeping */
- uint64_t tsc; /* Current timestamp counter */
- uint64_t freq; /* Frequency in khz */
- guint32 cyc2ns_scale;
-} LttBuffer;
-
-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
- struct marker_data *mdata; // marker id/name/fields mapping
- int fd; //file descriptor
- off_t file_size; //file size
- //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 alignment; //alignment of events in the tracefile.
- // 0 or the architecture size in bytes.
-
- size_t buffer_header_size;
- uint8_t tscbits;
- uint8_t eventbits;
- uint64_t tsc_mask;
- uint64_t tsc_mask_next_bit; //next MSB after the mask<
- uint32_t events_lost;
- uint32_t subbuf_corrupt;
-
- GArray *buf_index; /* index mapping buffer index to offset */
- uint64_t end_timestamp; /* Last timestamp of file */
- /* Current event */
- LttEvent event; //Event currently accessible in the trace
-
- /* Current block */
- LttBuffer buffer; //current buffer
-};
-
-/* The characteristics of the system on which the trace was obtained
- is described in a LttSystemDescription structure. */
-
-struct LttSystemDescription {
- gchar *description;
- gchar *node_name;
- gchar *domain_name;
- unsigned nb_cpu;
- LttArchSize size;
- LttArchEndian endian;
- gchar *kernel_name;
- gchar *kernel_release;
- gchar *kernel_version;
- gchar *machine;
- gchar *processor;
- gchar *hardware_platform;
- gchar *operating_system;
- LttTime trace_start;
- LttTime trace_end;
-};
-
-/*
- * Calculate the offset needed to align the type.
- * If alignment is 0, alignment is deactivated.
- * else, the function returns the offset needed to
- * align align_drift on the alignment value.
- *
- * 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 */
projects / lttv.git / blobdiff