Check-in [c6070d8891]
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Overview
Comment:further improvements of tclx's profile command
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: c6070d8891e3d4a01e7dd389bdd255c23b0e1342
User & Date: chw 2016-11-25 13:50:09
Context
2016-11-27
18:55
add tk upstream changes check-in: c607156404 user: chw tags: trunk
2016-11-25
13:50
further improvements of tclx's profile command check-in: c6070d8891 user: chw tags: trunk
2016-11-21
19:27
simplification of check-in [c29648d90f] check-in: eec9d69bc1 user: chw tags: trunk
Changes

Changes to jni/tclx/generic/tclXprofile.c.

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1136
 *-----------------------------------------------------------------------------
 * $Id: tclXprofile.c,v 1.4 2009/10/13 19:28:23 kot Exp $
 *-----------------------------------------------------------------------------
 */

#include "tclExtdInt.h"

/*
 * On Tcl 8.6 and newer, use Tcl_CreateObjTrace() etc.
 */
#if TCL_MAJOR_VERSION > 8 || \
   (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION >= 6)
#define OBJ_AND_NRE 1
#endif

/*
 * For when the level is not known.
 */
#define UNKNOWN_LEVEL -1

/*
 * Stack entry used to keep track of an profiling information for procedures
................................................................................
 */

typedef struct profInfo_t { 
    Tcl_Interp     *interp;                /* Interpreter this is for.       */
    Tcl_Trace       traceHandle;           /* Handle to current trace.       */
    int             commandMode;           /* Prof all commands?             */
    int             evalMode;              /* Use eval stack.                */
    Command        *currentCmdPtr;         /* Current command table entry.   */
    Tcl_CmdProc    *savedStrCmdProc;       /* Saved string command function  */
    ClientData      savedStrCmdClientData; /* and clientData.                */
    Tcl_ObjCmdProc *savedObjCmdProc;       /* Saved object command function  */
#ifdef OBJ_AND_NRE
    Tcl_ObjCmdProc *savedNreProc;          /* and NRE function               */
#endif
    ClientData      savedObjCmdClientData; /* and clientData.                */
    int             evalLevel;             /* Eval level when invoked.       */
    clock_t         realTime;              /* Current real and CPU time.     */
    clock_t         cpuTime;
    clock_t         prevRealTime;          /* Real and CPU time of previous  */
    clock_t         prevCpuTime;           /* trace.                         */
    int             updatedTimes;          /* Has current times been updated?*/
    profEntry_t    *stackPtr;              /* Proc/command nesting stack.    */
................................................................................

static void
PopEntry _ANSI_ARGS_((profInfo_t *infoPtr));

static void
UpdateTOSTimes _ANSI_ARGS_((profInfo_t *infoPtr));

static Command *
ProfCommandEvalSetup _ANSI_ARGS_((profInfo_t *infoPtr,
                                  int        *isProcPtr));
    
static void
ProfCommandEvalFinishup _ANSI_ARGS_((profInfo_t *infoPtr,
                                     int         isProc));

static int
ProfStrCommandEval _ANSI_ARGS_((ClientData    clientData,
                                Tcl_Interp   *interp,
                                int           argc,
                                CONST84 char **argv));

static int
ProfObjCommandEval _ANSI_ARGS_((ClientData    clientData,
                                Tcl_Interp   *interp,
                                int           objc,
                                Tcl_Obj      *CONST objv[]));

#ifdef OBJ_AND_NRE
static int
ProfNreCommandEval _ANSI_ARGS_((ClientData    clientData,
                                Tcl_Interp   *interp,
                                int           objc,
                                Tcl_Obj      *CONST objv[]));

static int
ProfObjTraceRoutine _ANSI_ARGS_((ClientData     clientData,
                                 Tcl_Interp    *interp,
                                 int            evalLevel,
                                 const char    *command,
                                 Tcl_Command    cmd,
                                 int            objc,
                                 Tcl_Obj *const objv[]));
#else
static void
ProfTraceRoutine _ANSI_ARGS_((ClientData    clientData,
                              Tcl_Interp   *interp,
                              int           evalLevel,
                              char         *command,
                              Tcl_CmdProc  *cmdProc,
                              ClientData    cmdClientData,
                              int           argc,
                              char        **argv));
#endif

static void
CleanDataTable _ANSI_ARGS_((profInfo_t *infoPtr));

static void
InitializeProcStack _ANSI_ARGS_((profInfo_t *infoPtr,
                                 CallFrame  *framePtr));

................................................................................
            infoPtr->realTime - infoPtr->prevRealTime;
        infoPtr->scopeChainPtr->scopeCpuTime +=
            infoPtr->cpuTime - infoPtr->prevCpuTime;
    }
}
 
/*-----------------------------------------------------------------------------
 * ProfCommandEvalSetup --
 *   Do initial work that is common to both the string and object command
 * evaluators.
 *
 * Returns:
 *   A pointer to the current command table entry.
 *-----------------------------------------------------------------------------
 */
static Command *
ProfCommandEvalSetup (infoPtr, isProcPtr)
    profInfo_t *infoPtr;
    int        *isProcPtr;
{
    Interp *iPtr = (Interp *) infoPtr->interp;
    Command *currentCmdPtr;
    CallFrame *framePtr;
    int procLevel, scopeLevel, isProc;
    Tcl_Obj *fullCmdNamePtr;
    char *fullCmdName;

    /*
     * Restore the command table entry.  If the command has modified it, don't
     * mess with it.
     */
    currentCmdPtr = infoPtr->currentCmdPtr;
    if (currentCmdPtr->proc == ProfStrCommandEval)
        currentCmdPtr->proc = infoPtr->savedStrCmdProc;
    if (currentCmdPtr->clientData == (ClientData) infoPtr)
        currentCmdPtr->clientData = infoPtr->savedStrCmdClientData;
    if (currentCmdPtr->objProc == ProfObjCommandEval)
        currentCmdPtr->objProc = infoPtr->savedObjCmdProc;
#ifdef OBJ_AND_NRE
    if (currentCmdPtr->nreProc == ProfNreCommandEval)
        currentCmdPtr->nreProc = infoPtr->savedNreProc;
#endif
    if (currentCmdPtr->objClientData == (ClientData) infoPtr)
        currentCmdPtr->objClientData = infoPtr->savedObjCmdClientData;
    infoPtr->currentCmdPtr = NULL;
    infoPtr->savedStrCmdProc = NULL;
    infoPtr->savedStrCmdClientData = NULL;
    infoPtr->savedObjCmdProc = NULL;
#ifdef OBJ_AND_NRE
    infoPtr->savedNreProc = NULL;
#endif
    infoPtr->savedObjCmdClientData = NULL;

    fullCmdNamePtr = Tcl_NewObj ();
    Tcl_GetCommandFullName (infoPtr->interp, (Tcl_Command) currentCmdPtr, 
                            fullCmdNamePtr);
    fullCmdName = Tcl_GetStringFromObj (fullCmdNamePtr, NULL);

    /*
     * Determine current proc and var levels.
     */
    procLevel = 0;
    for (framePtr = iPtr->framePtr; framePtr != NULL; framePtr =
             framePtr->callerPtr) {
        procLevel++;
    }
    scopeLevel = (iPtr->varFramePtr == NULL) ? 0 : iPtr->varFramePtr->level;

    /* 
     * If there are entries on the stack that are at a higher proc call level
     * than we are, we have exited into the initial entries that where pushed
     * on the stack before we started.  Pop those entries.
     */
    if (infoPtr->stackPtr->procLevel > procLevel)
        UpdateTOSTimes (infoPtr);
    while (infoPtr->stackPtr->procLevel > procLevel) {
        if (infoPtr->stackPtr->evalLevel != UNKNOWN_LEVEL) 
            panic (PROF_PANIC, 2);  /* Not an initial entry */
        PopEntry (infoPtr);
    }

    /*
     * If this command is a procedure or if all commands are being traced,
     * handle the entry.
     */
    isProc = (TclFindProc (iPtr, fullCmdName) != NULL);
    if (infoPtr->commandMode || isProc) {
        UpdateTOSTimes (infoPtr);
        if (isProc) {
            PushEntry (infoPtr, fullCmdName, TRUE,
                       procLevel + 1, scopeLevel + 1, infoPtr->evalLevel);
        } else if (infoPtr->commandMode) {
            PushEntry (infoPtr, fullCmdName, FALSE,
                       procLevel, scopeLevel, infoPtr->evalLevel);
        }
    }

    /*
     * Leaving profiler, must get time again when we reenter.
     */
    infoPtr->updatedTimes = FALSE;

    *isProcPtr = isProc;

    Tcl_DecrRefCount (fullCmdNamePtr);
    return currentCmdPtr;
}
 
/*-----------------------------------------------------------------------------
 * ProfCommandEvalFinishup --
 *   Do final work that is common to both the string and object command
 * evaluators.
 *-----------------------------------------------------------------------------
 */
static void
ProfCommandEvalFinishup (infoPtr, isProc)
    profInfo_t *infoPtr;
    int         isProc;
{
    /*
     * If tracing is still running, pop the entry, recording the information.
     */
    if (infoPtr->traceHandle != NULL) {
        if (infoPtr->commandMode || isProc) {
            UpdateTOSTimes (infoPtr);
            PopEntry (infoPtr);
        }
    }
    /*
     * Leaving profiler, must get time again when we reenter.
     */
    infoPtr->updatedTimes = FALSE;
}
 
/*-----------------------------------------------------------------------------
 * ProfStrCommandEval --
 *   Function to evaluate a string command.  The procedure trace routine
 * substitutes this function for the command executor function in the Tcl
 * command table.  We restore the command table, record data about the start
 * of the command and then actually execute the command.  When the command
 * returns, we record data about the time it took.
 *
 * FIX:  This all falls apart if another trace is executed between the
 * doctoring of the command entry and this function being called.
 *-----------------------------------------------------------------------------
 */
static int
ProfStrCommandEval (clientData, interp, argc, argv)
    ClientData    clientData;
    Tcl_Interp   *interp;
    int           argc;
    CONST84 char **argv;
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Command *currentCmdPtr;
    int isProc, result;

    currentCmdPtr = ProfCommandEvalSetup (infoPtr, &isProc);

    result = (*currentCmdPtr->proc) (currentCmdPtr->clientData, interp,
                                     argc, argv);

    ProfCommandEvalFinishup (infoPtr, isProc);
    return result;
}
 
/*-----------------------------------------------------------------------------
 * ProfObjCommandEval --
 *   Function to evaluate a object command.  The procedure trace routine
 * substitutes this function for the command executor function in the Tcl
 * command table.  We restore the command table, record data about the start
 * of the command and then actually execute the command.  When the command
 * returns, we record data about the time it took.
 *
 * FIX:  This all falls apart if another trace is executed between the
 * doctoring of the command entry and this function being called.
 *-----------------------------------------------------------------------------
 */
static int
ProfObjCommandEval (clientData, interp, objc, objv)
    ClientData    clientData;
    Tcl_Interp   *interp;
    int           objc;
    Tcl_Obj     *CONST objv[];
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Command *currentCmdPtr;
    int isProc, result;

    currentCmdPtr = ProfCommandEvalSetup (infoPtr,
                                          &isProc);

    result = (*currentCmdPtr->objProc) (currentCmdPtr->objClientData, interp,
                                        objc, objv);

    ProfCommandEvalFinishup (infoPtr, isProc);
    return result;
}
 
#ifdef OBJ_AND_NRE
/*-----------------------------------------------------------------------------
 * ProfNreCommandEval --
 *   Function to evaluate a NRE object command.  The procedure trace routine
 * substitutes this function for the command executor function in the Tcl
 * command table.  We restore the command table, record data about the start
 * of the command and then actually execute the command.  When the command
 * returns, we record data about the time it took.
 *
 * FIX:  This all falls apart if another trace is executed between the
 * doctoring of the command entry and this function being called.
 *-----------------------------------------------------------------------------
 */
static int
ProfNreCommandEval (clientData, interp, objc, objv)
    ClientData    clientData;
    Tcl_Interp   *interp;
    int           objc;
    Tcl_Obj     *CONST objv[];
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Command *currentCmdPtr;
    int isProc, result;

    currentCmdPtr = ProfCommandEvalSetup (infoPtr,
                                          &isProc);

    result = (*currentCmdPtr->nreProc) (currentCmdPtr->objClientData, interp,
                                        objc, objv);

    ProfCommandEvalFinishup (infoPtr, isProc);
    return result;
}
 
/*-----------------------------------------------------------------------------
  * ProfObjTraceRoutine --
 *   Routine called by Tcl_Eval to do profiling.  It intercepts the current
 * command being executed by temporarily editing the command table.
 *-----------------------------------------------------------------------------
 */
static int
ProfObjTraceRoutine (clientData, interp, evalLevel, command, cmd,
                     objc, objv)
    ClientData       clientData;
    Tcl_Interp      *interp;
................................................................................
    int              evalLevel;
    const char      *command;
    Tcl_Command      cmd;
    int              objc;
    Tcl_Obj *const   objv[];
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Command *cmdPtr;


    if (infoPtr->currentCmdPtr != NULL)
        panic (PROF_PANIC, 3);

    cmdPtr = (Command *) cmd;

    /*
     * If command is to be compiled, we can't profile it.
     */
    if (cmdPtr->compileProc != NULL)
        return TCL_OK;

    /*








     * Save current state information.
     */








    infoPtr->currentCmdPtr = cmdPtr;
    infoPtr->savedStrCmdProc = cmdPtr->proc;
    infoPtr->savedStrCmdClientData = cmdPtr->clientData;
    infoPtr->savedObjCmdProc = cmdPtr->objProc;
    infoPtr->savedNreProc = cmdPtr->nreProc;
    infoPtr->savedObjCmdClientData = cmdPtr->objClientData;
    infoPtr->evalLevel = evalLevel;

    /*
     * Force our routines to be called.
     */
    cmdPtr->proc = ProfStrCommandEval;
    cmdPtr->clientData = (ClientData) infoPtr;
    cmdPtr->objProc = ProfObjCommandEval;
    if (cmdPtr->nreProc != NULL) {
        cmdPtr->nreProc = ProfNreCommandEval;
    }
    cmdPtr->objClientData = (ClientData) infoPtr;
    return TCL_OK;
}
#else
 
/*-----------------------------------------------------------------------------
  * ProfTraceRoutine --
 *   Routine called by Tcl_Eval to do profiling.  It intercepts the current
 * command being executed by temporarily editing the command table.





 *-----------------------------------------------------------------------------
 */
static void
ProfTraceRoutine (clientData, interp, evalLevel, command, cmdProc,
                  cmdClientData, argc, argv)
    ClientData    clientData;
    Tcl_Interp   *interp;
    int           evalLevel;
    char         *command;
    Tcl_CmdProc  *cmdProc;
    ClientData    cmdClientData;
    int           argc;
    char        **argv;

{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Command *cmdPtr;




    Tcl_Command cmd;












    if (infoPtr->currentCmdPtr != NULL)
        panic (PROF_PANIC, 3);






    cmd = Tcl_FindCommand (interp, argv [0], NULL, 0);
    if (cmd == NULL)
        panic (PROF_PANIC, 4);
    cmdPtr = (Command *) cmd;

    if ((cmdPtr->proc != cmdProc) || (cmdPtr->clientData != cmdClientData))





































































        panic (PROF_PANIC, 5);





    /*
     * If command is to be compiled, we can't profile it.

     */
    if (cmdPtr->compileProc != NULL)
        return;







    /*
     * Save current state information.

     */
    infoPtr->currentCmdPtr = cmdPtr;
    infoPtr->savedStrCmdProc = cmdPtr->proc;
    infoPtr->savedStrCmdClientData = cmdPtr->clientData;
    infoPtr->savedObjCmdProc = cmdPtr->objProc;
    infoPtr->savedObjCmdClientData = cmdPtr->objClientData;
    infoPtr->evalLevel = evalLevel;




    /*
     * Force our routines to be called.

     */
    cmdPtr->proc = ProfStrCommandEval;
    cmdPtr->clientData = (ClientData) infoPtr;
    cmdPtr->objProc = ProfObjCommandEval;
    cmdPtr->objClientData = (ClientData) infoPtr;



}
#endif /* OBJ_AND_NRE */























 
/*-----------------------------------------------------------------------------
 * CleanDataTable --
 *    Clean up the hash data table, releasing all resources and setting it
 * to the empty state.
 *
 * Parameters:
................................................................................
InitializeProcStack (infoPtr, framePtr)
    profInfo_t *infoPtr;
    CallFrame  *framePtr;
{
    if (framePtr == NULL || framePtr->objv == NULL)
        return;
    InitializeProcStack (infoPtr, framePtr->callerPtr);
    
       
    PushEntry (infoPtr,
               Tcl_GetStringFromObj (framePtr->objv [0], NULL),
               TRUE,
               infoPtr->stackPtr->procLevel + 1,
               framePtr->level,
               UNKNOWN_LEVEL);
................................................................................
{
    Interp *iPtr = (Interp *) infoPtr->interp;
    int scopeLevel;
    profEntry_t *scanPtr;

    CleanDataTable (infoPtr);

#ifdef OBJ_AND_NRE
    infoPtr->traceHandle =
        Tcl_CreateObjTrace (infoPtr->interp, MAXINT,
                            infoPtr->commandMode ? 0 :
                            TCL_ALLOW_INLINE_COMPILATION,
                            (Tcl_CmdObjTraceProc *) ProfObjTraceRoutine,
                            (ClientData) infoPtr, NULL);
#else
    infoPtr->traceHandle =
        Tcl_CreateTrace (infoPtr->interp, MAXINT,
                         (Tcl_CmdTraceProc *) ProfTraceRoutine,
                         (ClientData) infoPtr);
#endif
    infoPtr->commandMode = commandMode;
    infoPtr->evalMode = evalMode;
    infoPtr->realTime = 0;
    infoPtr->cpuTime = 0;
    infoPtr->prevRealTime = 0;
    infoPtr->prevCpuTime = 0;
    infoPtr->updatedTimes = FALSE;
................................................................................

    infoPtr = (profInfo_t *) ckalloc (sizeof (profInfo_t));

    infoPtr->interp = interp;
    infoPtr->traceHandle = NULL;
    infoPtr->commandMode = FALSE;
    infoPtr->evalMode = FALSE;
    infoPtr->currentCmdPtr = NULL;
    infoPtr->savedStrCmdProc = NULL;
    infoPtr->savedStrCmdClientData = NULL;
    infoPtr->savedObjCmdProc = NULL;
#ifdef OBJ_AND_NRE
    infoPtr->savedNreProc = NULL;
#endif
    infoPtr->savedObjCmdClientData = NULL;
    infoPtr->evalLevel = UNKNOWN_LEVEL;
    infoPtr->realTime = 0;
    infoPtr->cpuTime = 0;
    infoPtr->prevRealTime = 0;
    infoPtr->prevCpuTime = 0;
    infoPtr->updatedTimes = FALSE;
    infoPtr->stackPtr = NULL;
    infoPtr->stackSize = 0;
    infoPtr->scopeChainPtr = NULL;
    Tcl_InitHashTable (&infoPtr->profDataTable, TCL_STRING_KEYS);

    Tcl_CallWhenDeleted (interp, ProfMonCleanUp, (ClientData) infoPtr);

    Tcl_CreateObjCommand (interp, 
                          "profile",
                          TclX_ProfileObjCmd,
                          (ClientData) infoPtr,
                          (Tcl_CmdDeleteProc*) NULL);





}







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 *-----------------------------------------------------------------------------
 * $Id: tclXprofile.c,v 1.4 2009/10/13 19:28:23 kot Exp $
 *-----------------------------------------------------------------------------
 */

#include "tclExtdInt.h"









/*
 * For when the level is not known.
 */
#define UNKNOWN_LEVEL -1

/*
 * Stack entry used to keep track of an profiling information for procedures
................................................................................
 */

typedef struct profInfo_t { 
    Tcl_Interp     *interp;                /* Interpreter this is for.       */
    Tcl_Trace       traceHandle;           /* Handle to current trace.       */
    int             commandMode;           /* Prof all commands?             */
    int             evalMode;              /* Use eval stack.                */
    Tcl_Command     profileCmd;            /* "profile" Tcl command.         */
    Tcl_Command     profExecCmd;           /* "profexec" Tcl command.        */
    Tcl_Command     currentCmd;            /* Current execution traced cmd.  */





    int             evalLevel;             /* Eval level when invoked.       */
    clock_t         realTime;              /* Current real and CPU time.     */
    clock_t         cpuTime;
    clock_t         prevRealTime;          /* Real and CPU time of previous  */
    clock_t         prevCpuTime;           /* trace.                         */
    int             updatedTimes;          /* Has current times been updated?*/
    profEntry_t    *stackPtr;              /* Proc/command nesting stack.    */
................................................................................

static void
PopEntry _ANSI_ARGS_((profInfo_t *infoPtr));

static void
UpdateTOSTimes _ANSI_ARGS_((profInfo_t *infoPtr));









static int



















ProfObjTraceRoutine _ANSI_ARGS_((ClientData      clientData,
                                 Tcl_Interp     *interp,
                                 int             evalLevel,
                                 const char     *command,
                                 Tcl_Command     cmd,
                                 int             objc,
                                 Tcl_Obj *const  objv[]));












static void
CleanDataTable _ANSI_ARGS_((profInfo_t *infoPtr));

static void
InitializeProcStack _ANSI_ARGS_((profInfo_t *infoPtr,
                                 CallFrame  *framePtr));

................................................................................
            infoPtr->realTime - infoPtr->prevRealTime;
        infoPtr->scopeChainPtr->scopeCpuTime +=
            infoPtr->cpuTime - infoPtr->prevCpuTime;
    }
}
 
/*-----------------------------------------------------------------------------



































































































































































































































 * ProfObjTraceRoutine --
 *   Routine called by Tcl_Eval to do profiling.  It intercepts the current
 * command being executed by installing an execution trace.
 *-----------------------------------------------------------------------------
 */
static int
ProfObjTraceRoutine (clientData, interp, evalLevel, command, cmd,
                     objc, objv)
    ClientData       clientData;
    Tcl_Interp      *interp;
................................................................................
    int              evalLevel;
    const char      *command;
    Tcl_Command      cmd;
    int              objc;
    Tcl_Obj *const   objv[];
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;
    Tcl_Obj *listPtr, *namePtr;
    int result;

    if (infoPtr->currentCmd != NULL)








        return TCL_OK;


    listPtr = Tcl_NewObj ();
    Tcl_ListObjAppendElement (NULL, listPtr,
            Tcl_NewStringObj ("::trace", -1));
    Tcl_ListObjAppendElement (NULL, listPtr,
            Tcl_NewStringObj ("add", -1));
    Tcl_ListObjAppendElement (NULL, listPtr,
            Tcl_NewStringObj ("execution", -1));
    namePtr = Tcl_NewObj ();
    Tcl_GetCommandFullName (infoPtr->interp, cmd, namePtr);

    Tcl_ListObjAppendElement (NULL, listPtr, namePtr);
    Tcl_ListObjAppendElement (NULL, listPtr,
            Tcl_NewStringObj ("enter leave enterstep leavestep", -1));
    namePtr = Tcl_NewObj ();
    Tcl_GetCommandFullName (infoPtr->interp, infoPtr->profExecCmd, namePtr);
    Tcl_ListObjAppendElement (NULL, listPtr, namePtr);
    result = Tcl_EvalObjEx (interp, listPtr, TCL_EVAL_GLOBAL);
    if (result == TCL_OK)
        infoPtr->currentCmd = cmd;

















    return result;
}

 
/*-----------------------------------------------------------------------------



 * ProfExecObjCmd --
 *   Implements the TCL profexec command which is the callback for
 * execution traces. Signatures:
 *     profexec cmdstring op                  "enter" and "enterstep"
 *     profexec cmdstring code result op      "leave" and "leavestep"
 *-----------------------------------------------------------------------------
 */
static int
ProfExecObjCmd (clientData, interp, objc, objv)

    ClientData   clientData;
    Tcl_Interp  *interp;




    int          objc;

    Tcl_Obj     *CONST objv[];
{
    profInfo_t *infoPtr = (profInfo_t *) clientData;

    Interp *iPtr = (Interp *) interp;
    const char *opStr;
    int cmdObjc, procLevel, scopeLevel, isProc;
    Tcl_Obj **cmdObjv, *fullCmdNameObj;
    Tcl_Command cmd;
    char *cmdName, *fullCmdName;
    CallFrame *framePtr;

    if ((objc != 3) && (objc != 5))
        return TclX_WrongArgs (interp, objv [0],
                               "cmdstring op|code ?result op?");

    if (infoPtr->traceHandle == NULL || infoPtr->currentCmd == NULL)
        return TCL_OK;  /* Ignored when not active */

    if (objc == 3) {            /* enter/enterstep */

        opStr = Tcl_GetStringFromObj (objv[2], NULL);
        if ((strcmp ("enter", opStr) != 0) &&
            (strcmp ("enterstep", opStr) != 0))
            return TCL_OK;  /* Ignore unknown ops */

        Tcl_ListObjGetElements (NULL, objv[1], &cmdObjc, &cmdObjv);
        if (cmdObjc > 0) {
            cmdName = Tcl_GetStringFromObj (cmdObjv[0], NULL);
            cmd = Tcl_FindCommand (interp, cmdName, NULL, 0);
            if (cmd == NULL) 
                panic (PROF_PANIC, 1000);



            fullCmdNameObj = Tcl_NewObj ();
            Tcl_GetCommandFullName (interp, cmd, fullCmdNameObj);
            fullCmdName = Tcl_GetStringFromObj (fullCmdNameObj, NULL);

            /*
             * Determine current proc and var levels.
             */
            procLevel = 0;
            for (framePtr = iPtr->framePtr; framePtr != NULL;
                 framePtr = framePtr->callerPtr) {
                procLevel++;
            }
            scopeLevel = (iPtr->varFramePtr == NULL) ?
                         0 : iPtr->varFramePtr->level;

            /* 
             * If there are entries on the stack that are at a higher
             * proc call level than we are, we have exited into the
             * initial entries that where pushed on the stack before
             * we started.  Pop those entries.
             */
            if (infoPtr->stackPtr->procLevel > procLevel) {
                UpdateTOSTimes (infoPtr);
                do {
                    if (infoPtr->stackPtr->evalLevel != UNKNOWN_LEVEL) 
                        panic (PROF_PANIC, 2);  /* Not an initial entry */
                    if (infoPtr->stackPtr->prevEntryPtr == NULL)
                        break;  /* Keep first entry */
                    PopEntry (infoPtr);
                } while (infoPtr->stackPtr->procLevel > procLevel);
            }

            /*
             * If this command is a procedure or if all commands are
             * being traced, handle the entry.
             */
            isProc = (TclFindProc (iPtr, fullCmdName) != NULL);
            if (infoPtr->commandMode || isProc) {
                UpdateTOSTimes (infoPtr);
                if (isProc) {
                    PushEntry (infoPtr, fullCmdName, TRUE,
                               procLevel + 1, scopeLevel + 1,
                               infoPtr->evalLevel);
                } else {
                    PushEntry (infoPtr, fullCmdName, FALSE,
                               procLevel, scopeLevel,
                               infoPtr->evalLevel);
                }
            }

            /*
             * Leaving profiler, must get time again when we reenter.
             */
            infoPtr->updatedTimes = FALSE;
            Tcl_DecrRefCount (fullCmdNameObj);
        }
    } else {                    /* leave/leavestep */
        int done = 0;

        opStr = Tcl_GetStringFromObj (objv[4], NULL);
        done = (strcmp ("leave", opStr) == 0);
        if (!done && (strcmp ("leavestep", opStr) != 0))
            return TCL_OK;  /* Ignore unknown ops */

        Tcl_ListObjGetElements (NULL, objv[1], &cmdObjc, &cmdObjv);
        if (cmdObjc > 0) {
            cmdName = Tcl_GetStringFromObj (cmdObjv[0], NULL);
            cmd = Tcl_FindCommand (interp, cmdName, NULL, 0);
            if (cmd == NULL) 
                panic (PROF_PANIC, 1001);

            fullCmdNameObj = Tcl_NewObj ();
            Tcl_GetCommandFullName (interp, cmd, fullCmdNameObj);
            fullCmdName = Tcl_GetStringFromObj (fullCmdNameObj, NULL);

            /*

             * Pop the entry, recording the information.
             */


            if (infoPtr->commandMode ||
                (TclFindProc (iPtr, fullCmdName) != NULL)) {
                UpdateTOSTimes (infoPtr);
                if (infoPtr->stackPtr->prevEntryPtr != NULL)
                    PopEntry (infoPtr);
            }

            /*

             * Leaving profiler, must get time again when we reenter.
             */






            infoPtr->updatedTimes = FALSE;
            Tcl_DecrRefCount (fullCmdNameObj);
        }

        /*

         * If op was "leave", turn off the execution trace now.
         */




        if (done) {
            Tcl_Obj *listPtr, *namePtr;
            int result;


            listPtr = Tcl_NewObj ();
            Tcl_ListObjAppendElement (NULL, listPtr,
                                      Tcl_NewStringObj ("::trace", -1));
            Tcl_ListObjAppendElement (NULL, listPtr,
                                      Tcl_NewStringObj ("remove", -1));
            Tcl_ListObjAppendElement (NULL, listPtr,
                                      Tcl_NewStringObj ("execution", -1));
            namePtr = Tcl_NewObj ();
            Tcl_GetCommandFullName (infoPtr->interp, infoPtr->currentCmd,
                                    namePtr);
            Tcl_ListObjAppendElement (NULL, listPtr, namePtr);
            Tcl_ListObjAppendElement (NULL, listPtr,
                    Tcl_NewStringObj ("enter leave enterstep leavestep", -1));
            namePtr = Tcl_NewObj ();
            Tcl_GetCommandFullName (infoPtr->interp, infoPtr->profExecCmd,
                                    namePtr);
            Tcl_ListObjAppendElement (NULL, listPtr, namePtr);
            result = Tcl_EvalObjEx (interp, listPtr, TCL_EVAL_GLOBAL);
            infoPtr->currentCmd = NULL;
        }    
    }
    return TCL_OK;
}
 
/*-----------------------------------------------------------------------------
 * CleanDataTable --
 *    Clean up the hash data table, releasing all resources and setting it
 * to the empty state.
 *
 * Parameters:
................................................................................
InitializeProcStack (infoPtr, framePtr)
    profInfo_t *infoPtr;
    CallFrame  *framePtr;
{
    if (framePtr == NULL || framePtr->objv == NULL)
        return;
    InitializeProcStack (infoPtr, framePtr->callerPtr);

       
    PushEntry (infoPtr,
               Tcl_GetStringFromObj (framePtr->objv [0], NULL),
               TRUE,
               infoPtr->stackPtr->procLevel + 1,
               framePtr->level,
               UNKNOWN_LEVEL);
................................................................................
{
    Interp *iPtr = (Interp *) infoPtr->interp;
    int scopeLevel;
    profEntry_t *scanPtr;

    CleanDataTable (infoPtr);


    infoPtr->traceHandle =
        Tcl_CreateObjTrace (infoPtr->interp, 0,

                            TCL_ALLOW_INLINE_COMPILATION,
                            (Tcl_CmdObjTraceProc *) ProfObjTraceRoutine,
                            (ClientData) infoPtr, NULL);






    infoPtr->commandMode = commandMode;
    infoPtr->evalMode = evalMode;
    infoPtr->realTime = 0;
    infoPtr->cpuTime = 0;
    infoPtr->prevRealTime = 0;
    infoPtr->prevCpuTime = 0;
    infoPtr->updatedTimes = FALSE;
................................................................................

    infoPtr = (profInfo_t *) ckalloc (sizeof (profInfo_t));

    infoPtr->interp = interp;
    infoPtr->traceHandle = NULL;
    infoPtr->commandMode = FALSE;
    infoPtr->evalMode = FALSE;
    infoPtr->currentCmd = NULL;







    infoPtr->evalLevel = UNKNOWN_LEVEL;
    infoPtr->realTime = 0;
    infoPtr->cpuTime = 0;
    infoPtr->prevRealTime = 0;
    infoPtr->prevCpuTime = 0;
    infoPtr->updatedTimes = FALSE;
    infoPtr->stackPtr = NULL;
    infoPtr->stackSize = 0;
    infoPtr->scopeChainPtr = NULL;
    Tcl_InitHashTable (&infoPtr->profDataTable, TCL_STRING_KEYS);

    Tcl_CallWhenDeleted (interp, ProfMonCleanUp, (ClientData) infoPtr);

    infoPtr->profileCmd = Tcl_CreateObjCommand (interp, 
                                                "profile",
                                                TclX_ProfileObjCmd,
                                                (ClientData) infoPtr,
                                                (Tcl_CmdDeleteProc *) NULL);
    infoPtr->profExecCmd = Tcl_CreateObjCommand (interp, 
                                                 "profexec",
                                                 ProfExecObjCmd,
                                                 (ClientData) infoPtr,
                                                 (Tcl_CmdDeleteProc *) NULL);
}

Changes to jni/tclx/generic/tclXstring.c.

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    Tcl_Obj *classObj, *stringObj;
    int number;
    char charBuf[TCL_UTF_MAX];
    Tcl_UniChar uniChar;

#define IS_8BIT_UNICHAR(c) (c <= 255)

    if (TCL_UTF_MAX > sizeof(number)) {
        panic("TclX_CtypeObjCmd: UTF character longer than a int");
    }

    /*FIX: Split into multiple procs */
    /*FIX: Should use UtfNext to walk string */

    if (objc < 3) {
        goto wrongNumArgs;
    }








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    Tcl_Obj *classObj, *stringObj;
    int number;
    char charBuf[TCL_UTF_MAX];
    Tcl_UniChar uniChar;

#define IS_8BIT_UNICHAR(c) (c <= 255)





    /*FIX: Split into multiple procs */
    /*FIX: Should use UtfNext to walk string */

    if (objc < 3) {
        goto wrongNumArgs;
    }

Changes to jni/tclx/tests/profile.test.

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    set sumData {}
    foreach stack [array names profData] {
	set newStack [FilterProfStack $stack]
	if {![lempty $newStack]} {
	    lappend sumData [list $newStack [lindex $profData($stack) 0]]
	}
    }
    return [lsort $sumData]

}

proc listRemovePrecomp {args} {
    if {$::tcl_version < 8.4} { return $args }
    # This removes commands that are now compiled, and thus don't
    # appear in the profile results
    set res {}
    foreach arg $args {
	if {[regexp {^::(list|string|return)$} [lindex $arg 0 0]]} continue




	lappend res $arg
    }
    return $res
}

#
# Test of normal procedure calls.
................................................................................
} [list {<global> 1} {<global> 1} \
	{{::ProcA4 <global>} 1} \
	{{::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1}]














test profile-4.2 {profile count tests} {
   profile -commands on
   ProcA4
   profile off profData
   SumCntData profData
} [list {<global> 1} {<global> 1} \
	{{::ProcA4 <global>} 1} \
	{{::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::error ::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::profile <global>} 1}]

test profile-4.3 {profile count tests} {
   profile -eval on
   ProcA4
   profile off profData
   SumCntData profData
} [list {<global> 1} {<global> 1} \
................................................................................
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1}]

test profile-4.4 {profile count tests} {
   profile -commands -eval on
   ProcA4
   profile off profData
   SumCntData profData
} [list {<global> 1} {<global> 1} \
	{{::ProcA4 <global>} 1} \
	{{::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::error ::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::profile <global>} 1}]

#
# Test of a command that calls procedures from different levels.
#
set ::tcltest::testConstraints(tclx_test_eval) \
	[llength [info commands tclx_test_eval]]

................................................................................
proc EatTime {amount} {
    set start [lindex [times] 0]
    set end   [expr $start+$amount]
    set cnt 0
    while {[lindex [times] 0] < $end} {
        format %d 100  ;# kind of slow command.
        incr cnt
        if {($cnt > 10000) && ([lindex [times] 0] == $start)} {
            error "User CPU time does not appear to be accumulating"
        }
    }
}

proc ProcA10 {} {ProcB10;ProcC10;ProcD10}
proc ProcB10 {} {EatTime 1}







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    set sumData {}
    foreach stack [array names profData] {
	set newStack [FilterProfStack $stack]
	if {![lempty $newStack]} {
	    lappend sumData [list $newStack [lindex $profData($stack) 0]]
	}
    }
    if {$::tcl_version < 8.5} { return [lsort $sumData] }
    return [lsort [listRemovePrecomp {*}$sumData]]
}

proc listRemovePrecomp {args} {
    if {$::tcl_version < 8.4} { return $args }
    # This removes commands that are now compiled, and thus don't
    # appear in the profile results
    set res {}
    foreach arg $args {
	if {[regexp {^::(list|string|return)$} [lindex $arg 0 0]]} continue
	# 8.6
	if {[regexp {^::(expr|error|incr|set|list|catch|for|if|tcl::)} [lindex $arg 0 0]]} continue
	# 8.6, remove unwanted stuff in between, very ugly
	regsub -all -- {( ::if| ::catch| ::error)} $arg "" arg
	lappend res $arg
    }
    return $res
}

#
# Test of normal procedure calls.
................................................................................
} [list {<global> 1} {<global> 1} \
	{{::ProcA4 <global>} 1} \
	{{::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1}]

set anticipate [list {<global> 1} {<global> 1} \
	{{::ProcA4 <global>} 1} \
	{{::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1} \
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1}]
if {$tcl_version < 8.6} {
	# Error-handler is not subject to profiling under 8.6
	lappend anticipate \
	{{::error ::ProcD4 ::ProcC4 ::ProcB4 ::ProcA4 <global>} 1}
}
lappend anticipate {{::profile <global>} 1}

test profile-4.2 {profile count tests} {
   profile -commands on
   ProcA4
   profile off profData
   SumCntData profData
} $anticipate








test profile-4.3 {profile count tests} {
   profile -eval on
   ProcA4
   profile off profData
   SumCntData profData
} [list {<global> 1} {<global> 1} \
................................................................................
	{{::ProcE4 ::ProcB4 ::ProcA4 <global>} 1}]

test profile-4.4 {profile count tests} {
   profile -commands -eval on
   ProcA4
   profile off profData
   SumCntData profData
} $anticipate








#
# Test of a command that calls procedures from different levels.
#
set ::tcltest::testConstraints(tclx_test_eval) \
	[llength [info commands tclx_test_eval]]

................................................................................
proc EatTime {amount} {
    set start [lindex [times] 0]
    set end   [expr $start+$amount]
    set cnt 0
    while {[lindex [times] 0] < $end} {
        format %d 100  ;# kind of slow command.
        incr cnt
        if {($cnt > 100000) && ([lindex [times] 0] == $start)} {
            error "User CPU time does not appear to be accumulating"
        }
    }
}

proc ProcA10 {} {ProcB10;ProcC10;ProcD10}
proc ProcB10 {} {EatTime 1}