Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Fix the VDBE so that it always uses the original opcode for profiling and debugging even after the pOp pointer has been updated due to a jump. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
647495cf12b656f6a2f028dc1fb459d6 |
| User & Date: | drh 2015-04-16 17:31:02 |
Context
|
2015-04-16
| ||
| 18:11 | Make sure all cursors are closed when returning from a VDBE subprogram that implements a foreign-key construct. check-in: d04d354d user: drh tags: trunk | |
| 17:31 | Fix the VDBE so that it always uses the original opcode for profiling and debugging even after the pOp pointer has been updated due to a jump. check-in: 647495cf user: drh tags: trunk | |
| 16:22 | Fix a faulty assert() in the compound-SELECT code generator. check-in: 10715b05 user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
535 536 537 538 539 540 541 542 543 544 545 546 547 548 ... 676 677 678 679 680 681 682 683 684 685 686 687 688 689 .... 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 |
** This is the core of sqlite3_step().
*/
int sqlite3VdbeExec(
Vdbe *p /* The VDBE */
){
Op *aOp = p->aOp; /* Copy of p->aOp */
Op *pOp = aOp; /* Current operation */
int rc = SQLITE_OK; /* Value to return */
sqlite3 *db = p->db; /* The database */
u8 resetSchemaOnFault = 0; /* Reset schema after an error if positive */
u8 encoding = ENC(db); /* The database encoding */
int iCompare = 0; /* Result of last OP_Compare operation */
unsigned nVmStep = 0; /* Number of virtual machine steps */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
................................................................................
memAboutToChange(p, &aMem[pOp->p2]);
}
if( (pOp->opflags & OPFLG_OUT3)!=0 ){
assert( pOp->p3>0 );
assert( pOp->p3<=(p->nMem-p->nCursor) );
memAboutToChange(p, &aMem[pOp->p3]);
}
#endif
switch( pOp->opcode ){
/*****************************************************************************
** What follows is a massive switch statement where each case implements a
** separate instruction in the virtual machine. If we follow the usual
................................................................................
** restored.
*****************************************************************************/
}
#ifdef VDBE_PROFILE
{
u64 endTime = sqlite3Hwtime();
if( endTime>start ) pOp->cycles += endTime - start;
pOp->cnt++;
}
#endif
/* The following code adds nothing to the actual functionality
** of the program. It is only here for testing and debugging.
** On the other hand, it does burn CPU cycles every time through
** the evaluator loop. So we can leave it out when NDEBUG is defined.
*/
#ifndef NDEBUG
assert( pOp>=&aOp[-1] && pOp<&aOp[p->nOp] );
#ifdef SQLITE_DEBUG
if( db->flags & SQLITE_VdbeTrace ){
if( rc!=0 ) printf("rc=%d\n",rc);
if( pOp->opflags & (OPFLG_OUT2) ){
registerTrace(pOp->p2, &aMem[pOp->p2]);
}
if( pOp->opflags & OPFLG_OUT3 ){
registerTrace(pOp->p3, &aMem[pOp->p3]);
}
}
#endif /* SQLITE_DEBUG */
#endif /* NDEBUG */
} /* The end of the for(;;) loop the loops through opcodes */
/* If we reach this point, it means that execution is finished with
|
> > > > > > | | | | | | | |
535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 ... 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 .... 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 |
** This is the core of sqlite3_step().
*/
int sqlite3VdbeExec(
Vdbe *p /* The VDBE */
){
Op *aOp = p->aOp; /* Copy of p->aOp */
Op *pOp = aOp; /* Current operation */
#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
Op *pOrigOp; /* Value of pOp at the top of the loop */
#endif
int rc = SQLITE_OK; /* Value to return */
sqlite3 *db = p->db; /* The database */
u8 resetSchemaOnFault = 0; /* Reset schema after an error if positive */
u8 encoding = ENC(db); /* The database encoding */
int iCompare = 0; /* Result of last OP_Compare operation */
unsigned nVmStep = 0; /* Number of virtual machine steps */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
................................................................................
memAboutToChange(p, &aMem[pOp->p2]);
}
if( (pOp->opflags & OPFLG_OUT3)!=0 ){
assert( pOp->p3>0 );
assert( pOp->p3<=(p->nMem-p->nCursor) );
memAboutToChange(p, &aMem[pOp->p3]);
}
#endif
#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
pOrigOp = pOp;
#endif
switch( pOp->opcode ){
/*****************************************************************************
** What follows is a massive switch statement where each case implements a
** separate instruction in the virtual machine. If we follow the usual
................................................................................
** restored.
*****************************************************************************/
}
#ifdef VDBE_PROFILE
{
u64 endTime = sqlite3Hwtime();
if( endTime>start ) pOrigOp->cycles += endTime - start;
pOrigOp->cnt++;
}
#endif
/* The following code adds nothing to the actual functionality
** of the program. It is only here for testing and debugging.
** On the other hand, it does burn CPU cycles every time through
** the evaluator loop. So we can leave it out when NDEBUG is defined.
*/
#ifndef NDEBUG
assert( pOp>=&aOp[-1] && pOp<&aOp[p->nOp-1] );
#ifdef SQLITE_DEBUG
if( db->flags & SQLITE_VdbeTrace ){
if( rc!=0 ) printf("rc=%d\n",rc);
if( pOrigOp->opflags & (OPFLG_OUT2) ){
registerTrace(pOrigOp->p2, &aMem[pOrigOp->p2]);
}
if( pOrigOp->opflags & OPFLG_OUT3 ){
registerTrace(pOrigOp->p3, &aMem[pOrigOp->p3]);
}
}
#endif /* SQLITE_DEBUG */
#endif /* NDEBUG */
} /* The end of the for(;;) loop the loops through opcodes */
/* If we reach this point, it means that execution is finished with
|