mirror of
https://github.com/gigablast/open-source-search-engine.git
synced 2024-10-04 12:17:35 +03:00
294 lines
9.4 KiB
C++
294 lines
9.4 KiB
C++
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#define MAX_TOPICS_PER_TERM 28
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#define MAX_ALLOWED_TOPICS 100
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#define EI_NIDENT 16
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#ifndef _PROFILER_H_
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#define _PROFILER_H_
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#define SHT_SYMTAB 2
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#define SHT_DYNSYM 11
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#include "TcpServer.h"
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#include "HttpRequest.h"
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#include "Parms.h"
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#include "SafeBuf.h"
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#include "Pages.h"
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//#include "HashTableT.h"
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#include "HashTableX.h"
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typedef struct elf_internal_ehdr {
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unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
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unsigned long e_entry; /* Entry point virtual address */
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unsigned long e_phoff; /* Program header table file offset */
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unsigned long e_shoff; /* Section header table file offset */
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unsigned long e_version; /* Identifies object file version */
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unsigned long e_flags; /* Processor-specific flags */
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unsigned short e_type; /* Identifies object file type */
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unsigned short e_machine; /* Specifies required architecture */
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unsigned short e_ehsize; /* ELF header size in bytes */
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unsigned short e_phentsize; /* Program header table entry size */
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unsigned short e_phnum; /* Program header table entry count */
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unsigned short e_shentsize; /* Section header table entry size */
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unsigned short e_shnum; /* Section header table entry count */
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unsigned short e_shstrndx; /* Section header string table index */
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} Elf_Internal_Ehdr;
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typedef struct {
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unsigned char e_ident[16]; /* ELF "magic number" */
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unsigned char e_type[2]; /* Identifies object file type */
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unsigned char e_machine[2]; /* Specifies required architecture */
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unsigned char e_version[4]; /* Identifies object file version */
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unsigned char e_entry[4]; /* Entry point virtual address */
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unsigned char e_phoff[4]; /* Program header table file offset */
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unsigned char e_shoff[4]; /* Section header table file offset */
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unsigned char e_flags[4]; /* Processor-specific flags */
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unsigned char e_ehsize[2]; /* ELF header size in bytes */
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unsigned char e_phentsize[2]; /* Program header table entry size */
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unsigned char e_phnum[2]; /* Program header table entry count */
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unsigned char e_shentsize[2]; /* Section header table entry size */
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unsigned char e_shnum[2]; /* Section header table entry count */
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unsigned char e_shstrndx[2]; /* Section header string table index */
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} Elf32_External_Ehdr;
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typedef struct elf_internal_shdr {
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unsigned int sh_name; /* Section name, index in string tbl */
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unsigned int sh_type; /* Type of section */
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unsigned long sh_flags; /* Miscellaneous section attributes */
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unsigned long sh_addr; /* Section virtual addr at execution */
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unsigned long sh_size; /* Size of section in bytes */
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unsigned long sh_entsize; /* Entry size if section holds table */
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unsigned long sh_link; /* Index of another section */
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unsigned long sh_info; /* Additional section information */
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long int sh_offset; /* Section file offset */
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unsigned int sh_addralign; /* Section alignment */
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/* The internal rep also has some cached info associated with it.
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asection * bfd_section; Associated BFD section.
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PTR contents; Section contents. */
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} Elf_Internal_Shdr;
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typedef struct {
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unsigned char sh_name[4]; /* Section name, index in string tbl */
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unsigned char sh_type[4]; /* Type of section */
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unsigned char sh_flags[4]; /* Miscellaneous section attributes */
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unsigned char sh_addr[4]; /* Section virtual addr at execution */
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unsigned char sh_offset[4]; /* Section file offset */
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unsigned char sh_size[4]; /* Size of section in bytes */
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unsigned char sh_link[4]; /* Index of another section */
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unsigned char sh_info[4]; /* Additional section information */
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unsigned char sh_addralign[4];/* Section alignment */
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unsigned char sh_entsize[4]; /* Entry size if section holds table */
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} Elf32_External_Shdr;
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typedef struct elf_internal_sym {
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unsigned long st_value; /* Value of the symbol */
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unsigned long st_size; /* Associated symbol size */
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unsigned long st_name; /* Symbol name, index in string tbl */
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unsigned char st_info; /* Type and binding attributes */
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unsigned char st_other; /* No defined meaning, 0 */
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unsigned short st_shndx; /* Associated section index */
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} Elf_Internal_Sym;
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typedef struct {
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unsigned char st_name[4]; /* Symbol name, index in string tbl */
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unsigned char st_value[4]; /* Value of the symbol */
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unsigned char st_size[4]; /* Associated symbol size */
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unsigned char st_info[1]; /* Type and binding attributes */
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unsigned char st_other[1]; /* No defined meaning, 0 */
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unsigned char st_shndx[2]; /* Associated section index */
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} Elf32_External_Sym;
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struct FnInfo {
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char m_fnName[256];
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unsigned long m_timesCalled;
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unsigned long m_totalTimeTaken;
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unsigned long m_maxTimeTaken;
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unsigned long m_numCalledFromThread;
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unsigned long m_maxBlockedTime;
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const char *m_lastQpoll;
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const char *m_prevQpoll;
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long long m_startTimeLocal;
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long long m_startTime;
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long long m_lastPauseTime;
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long m_inFunction;
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};
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struct QuickPollInfo {
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const char *m_caller;
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long m_lineno;
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const char *m_last;
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long m_lastlineno;
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long m_timeAcc;
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long m_maxTime;
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long m_times;
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};
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struct HitEntry {
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char *funcName;
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char *file;
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uint32_t fileHash;
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uint32_t line;
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uint32_t numHits;
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uint32_t numHitsPerFunc;
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uint32_t address;
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uint32_t baseAddress;
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uint32_t missedQuickPolls;
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uint32_t missedQuickPollsPerFunc;
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};
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class FrameTrace {
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public:
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FrameTrace();
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~FrameTrace();
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FrameTrace *set(const uint32_t addr);
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FrameTrace *add(const uint32_t baseAddr);
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void dump( SafeBuf *out,
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const uint32_t level = 0,
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uint32_t printStart = 0) const;
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uint32_t getPrintLen(const uint32_t level = 0) const;
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uint32_t address;
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static const uint16_t MAX_CHILDREN = 64;
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FrameTrace *m_children[MAX_CHILDREN];
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uint32_t m_numChildren;
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uint32_t hits;
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uint32_t missQuickPoll;
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};
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class Profiler {
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public:
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Profiler();
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~Profiler();
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bool reset();
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bool init();
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bool addQuickPoll(long long took, const char* caller);
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bool startTimer(long address, const char* caller);
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bool pause(const char *caller, long lineno, long took);
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bool unpause();
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//This function should get the function name from nm / addr2line
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bool endTimer(long address,
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const char *caller,
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bool isThread=false);
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bool printInfo(SafeBuf *sb,
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//long user,
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char *username,
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char *pwd,
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char *coll,
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int sorts,
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int sort10,
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int qpreset,
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int profilerreset);
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bool printRealTimeInfo(SafeBuf *sb,
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//long user,
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char *username,
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char *pwd,
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char *coll,
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int realTimeSortMode,
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int realTimeShowAll);
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void resetLastQpoll() {m_lastQpoll = "main loop"; m_lastQpollLine =0;}
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char *getFnName(unsigned long address,long *nameLen=NULL);
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//Functions for reading the symbol table of gb,
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//which is a 32-bit ELF file. These functions are
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//a customized version of readelf program, found in
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//GNU binutils, and works for 32-bit ELF files.
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bool readSymbolTable();
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static FrameTrace *getFrameTrace( void **trace,
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const uint32_t numFrames);
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static FrameTrace *updateRealTimeData( void **trace,
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const uint32_t numFrames,
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uint32_t **ptr);
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static void checkMissedQuickPoll( FrameTrace *frame,
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const uint32_t stackPtr,
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uint32_t *ptr);
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static void getStackFrame(int sig);
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void startRealTimeProfiler();
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void stopRealTimeProfiler(const bool keepData=false);
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void cleanup();
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FrameTrace *getNewFrameTrace(const uint32_t addr);
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bool m_realTimeProfilerRunning;
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protected:
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bool processSymbolTable (FILE *file);
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bool processSectionHeaders (FILE * file);
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bool get32bitSectionHeaders (FILE * file);
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bool getFileHeader (FILE * file);
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//bool fnReset (HashTableT<unsigned long, FnInfo*> *m_fn);
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FILE *m_file;
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char *m_stringTable;
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long m_stringTableSize;
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Elf_Internal_Ehdr m_elfHeader;
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Elf_Internal_Shdr* m_sectionHeaders;
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Elf_Internal_Sym* get32bitElfSymbols (FILE *file,
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unsigned long offset,
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unsigned long number);
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unsigned long getByte (unsigned char * field,int size);
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//HashTableT<unsigned long, FnInfo> m_fn;
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//HashTableT<unsigned long, FnInfo> m_fnTmp[11];
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//HashTableT<unsigned long, FnInfo*> m_activeFns;
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//HashTableT<unsigned long, QuickPollInfo*> m_quickpolls;
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HashTableX m_fn;
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HashTableX m_fnTmp[11];
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HashTableX m_activeFns;
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HashTableX m_quickpolls;
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const char* m_lastQpoll;
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long m_lastQpollLine;
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QuickPollInfo m_quickPollInfos[512];
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long m_lastQPUsed;
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unsigned long long m_fnTime[11];
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private:
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// Realtime profiler stuff
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uint32_t getFuncBaseAddr(const uint32_t address);
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uint32_t getFuncBaseAddr(const char *funcName);
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static int rtDataLocationCmp(const void *A, const void *B);
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static int rtHitCmp(const void *A, const void *B);
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static int rtFuncHitCmp(const void *A, const void *B);
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static int rtAddressCmp(const void *A, const void *B);
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static int rtMissedQuickPolls(const void *A, const void *B);
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static int rtMissedQuickPollPerFunc(const void *A, const void *B);
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void sortRealTimeData(const uint8_t type, const uint32_t num);
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uint32_t rtNumEntries;
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HitEntry *hitEntries;
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uint32_t *m_addressMap;
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uint32_t m_addressMapSize;
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uint32_t m_lastAddressMapIndex;
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FrameTrace *m_rootFrame;
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uint32_t m_lastDeltaAddress;
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uint64_t m_lastDeltaAddressTime;
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static const uint32_t MAX_FRAME_TRACES = 1024 * 64;
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FrameTrace *m_frameTraces;
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uint32_t m_numUsedFrameTraces;
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};
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extern Profiler g_profiler;
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#endif
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