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Overview
Comment:Add the "PRAGMA vdbe_addoptrace" pragma for debugging.
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SHA1: 4487c8c57e22527d2ce991d5aa562db8da9fa785
User & Date: drh 2013-02-15 22:08:42
Context
2013-02-15
22:20
Fix a bug in the IN processing in WHERE clauses. check-in: 25e27cdc60 user: drh tags: trunk
22:08
Add the "PRAGMA vdbe_addoptrace" pragma for debugging. check-in: 4487c8c57e user: drh tags: trunk
19:20
Fix a crash bug found by TH4. check-in: 6453240a0f user: drh tags: trunk
Changes
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Changes to src/pragma.c. 

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#ifdef SQLITE4_DEBUG
    { "sql_trace",                SQLITE4_SqlTrace      },
    { "vdbe_listing",             SQLITE4_VdbeListing   },
    { "vdbe_trace",               SQLITE4_VdbeTrace     },
    { "kv_trace",                 SQLITE4_KvTrace       },
    { "trace",                    SQLITE4_SqlTrace | SQLITE4_VdbeListing |
                                  SQLITE4_VdbeTrace | SQLITE4_KvTrace },

#endif
#ifndef SQLITE4_OMIT_CHECK
    { "ignore_check_constraints", SQLITE4_IgnoreChecks  },
#endif
    /* The following is VERY experimental */
    { "writable_schema",          SQLITE4_WriteSchema|SQLITE4_RecoveryMode },









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#ifdef SQLITE4_DEBUG
    { "sql_trace",                SQLITE4_SqlTrace      },
    { "vdbe_listing",             SQLITE4_VdbeListing   },
    { "vdbe_trace",               SQLITE4_VdbeTrace     },
    { "kv_trace",                 SQLITE4_KvTrace       },
    { "trace",                    SQLITE4_SqlTrace | SQLITE4_VdbeListing |
                                  SQLITE4_VdbeTrace | SQLITE4_KvTrace },
    { "vdbe_addoptrace",          SQLITE4_VdbeAddopTrace },
#endif
#ifndef SQLITE4_OMIT_CHECK
    { "ignore_check_constraints", SQLITE4_IgnoreChecks  },
#endif
    /* The following is VERY experimental */
    { "writable_schema",          SQLITE4_WriteSchema|SQLITE4_RecoveryMode },

Changes to src/sqliteInt.h. 

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*/
#define ENC(db) ((db)->aDb[0].pSchema->enc)

/*
** Possible values for the sqlite4.flags.
*/
#define SQLITE4_VdbeTrace      0x00000100  /* True to trace VDBE execution */
#define SQLITE4_InternChanges  0x00000200  /* Uncommitted Hash table changes */
#define SQLITE4_CountRows      0x00001000  /* Count rows changed by INSERT, */
                                          /*   DELETE, or UPDATE and return */
                                          /*   the count using a callback. */
#define SQLITE4_SqlTrace       0x00004000  /* Debug print SQL as it executes */
#define SQLITE4_VdbeListing    0x00008000  /* Debug listings of VDBE programs */



#define SQLITE4_WriteSchema    0x00010000  /* OK to update SQLITE4_MASTER */
#define SQLITE4_KvTrace        0x00020000  /* Trace Key/value storage calls */
#define SQLITE4_IgnoreChecks   0x00040000  /* Do not enforce check constraints */
#define SQLITE4_ReadUncommitted 0x0080000  /* For shared-cache mode */
#define SQLITE4_LegacyFileFmt  0x00100000  /* Create new databases in format 1 */
#define SQLITE4_RecoveryMode   0x00800000  /* Ignore schema errors */
#define SQLITE4_ReverseOrder   0x01000000  /* Reverse unordered SELECTs */
#define SQLITE4_RecTriggers    0x02000000  /* Enable recursive triggers */
#define SQLITE4_ForeignKeys    0x04000000  /* Enforce foreign key constraints  */
#define SQLITE4_AutoIndex      0x08000000  /* Enable automatic indexes */
#define SQLITE4_PreferBuiltin  0x10000000  /* Preference to built-in funcs */
#define SQLITE4_EnableTrigger  0x40000000  /* True to enable triggers */









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*/
#define ENC(db) ((db)->aDb[0].pSchema->enc)

/*
** Possible values for the sqlite4.flags.
*/
#define SQLITE4_VdbeTrace      0x00000100  /* True to trace VDBE execution */




#define SQLITE4_SqlTrace       0x00000200  /* Debug print SQL as it executes */
#define SQLITE4_VdbeListing    0x00000400  /* Debug listings of VDBE programs */
#define SQLITE4_KvTrace        0x00000800  /* Trace Key/value storage calls */
#define SQLITE4_VdbeAddopTrace 0x00001000  /* Trace sqlite4VdbeAddOp() calls */
#define SQLITE4_InternChanges  0x00010000  /* Uncommitted Hash table changes */
#define SQLITE4_WriteSchema    0x00020000  /* OK to update SQLITE4_MASTER */

#define SQLITE4_IgnoreChecks   0x00040000  /* Dont enforce check constraints */


#define SQLITE4_RecoveryMode   0x00080000  /* Ignore schema errors */
#define SQLITE4_ReverseOrder   0x01000000  /* Reverse unordered SELECTs */
#define SQLITE4_RecTriggers    0x02000000  /* Enable recursive triggers */
#define SQLITE4_ForeignKeys    0x04000000  /* Enforce foreign key constraints  */
#define SQLITE4_AutoIndex      0x08000000  /* Enable automatic indexes */
#define SQLITE4_PreferBuiltin  0x10000000  /* Preference to built-in funcs */
#define SQLITE4_EnableTrigger  0x40000000  /* True to enable triggers */

Changes to src/vdbeaux.c. 

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** to version 2.8.7, all this code was combined into the vdbe.c source file.
** But that file was getting too big so this subroutines were split out.
*/
#include "sqliteInt.h"
#include "vdbeInt.h"



/*
** When debugging the code generator in a symbolic debugger, one can
** set the sqlite4VdbeAddopTrace to 1 and all opcodes will be printed
** as they are added to the instruction stream.
*/
#ifdef SQLITE4_DEBUG
int sqlite4VdbeAddopTrace = 0;
#endif


/*
** Create a new virtual database engine.
*/
Vdbe *sqlite4VdbeCreate(sqlite4 *db){
  Vdbe *p;
  p = sqlite4DbMallocZero(db, sizeof(Vdbe) );
  if( p==0 ) return 0;
................................................................................
  pOp->p1 = p1;
  pOp->p2 = p2;
  pOp->p3 = p3;
  pOp->p4.p = 0;
  pOp->p4type = P4_NOTUSED;
#ifdef SQLITE4_DEBUG
  pOp->zComment = 0;

  if( sqlite4VdbeAddopTrace ) sqlite4VdbePrintOp(0, i, &p->aOp[i]);

#endif
#ifdef VDBE_PROFILE
  pOp->cycles = 0;
  pOp->cnt = 0;
#endif
  return i;
}
................................................................................
      }
      pOut->p3 = pIn->p3;
      pOut->p4type = P4_NOTUSED;
      pOut->p4.p = 0;
      pOut->p5 = 0;
#ifdef SQLITE4_DEBUG
      pOut->zComment = 0;
      if( sqlite4VdbeAddopTrace ){
        sqlite4VdbePrintOp(0, i+addr, &p->aOp[i+addr]);
      }
#endif
    }
    p->nOp += nOp;
  }
  return addr;








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** to version 2.8.7, all this code was combined into the vdbe.c source file.
** But that file was getting too big so this subroutines were split out.
*/
#include "sqliteInt.h"
#include "vdbeInt.h"













/*
** Create a new virtual database engine.
*/
Vdbe *sqlite4VdbeCreate(sqlite4 *db){
  Vdbe *p;
  p = sqlite4DbMallocZero(db, sizeof(Vdbe) );
  if( p==0 ) return 0;
................................................................................
  pOp->p1 = p1;
  pOp->p2 = p2;
  pOp->p3 = p3;
  pOp->p4.p = 0;
  pOp->p4type = P4_NOTUSED;
#ifdef SQLITE4_DEBUG
  pOp->zComment = 0;
  if( p->db->flags & SQLITE4_VdbeAddopTrace ){
    sqlite4VdbePrintOp(0, i, &p->aOp[i]);
  }
#endif
#ifdef VDBE_PROFILE
  pOp->cycles = 0;
  pOp->cnt = 0;
#endif
  return i;
}
................................................................................
      }
      pOut->p3 = pIn->p3;
      pOut->p4type = P4_NOTUSED;
      pOut->p4.p = 0;
      pOut->p5 = 0;
#ifdef SQLITE4_DEBUG
      pOut->zComment = 0;
      if( p->db->flags & SQLITE4_VdbeAddopTrace ){
        sqlite4VdbePrintOp(0, i+addr, &p->aOp[i+addr]);
      }
#endif
    }
    p->nOp += nOp;
  }
  return addr;

Changes to test/test_main.c. 

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  extern int sqlite4_pager_writej_count;
#if SQLITE4_OS_WIN
  extern int sqlite4_os_type;
#endif
#ifdef SQLITE4_DEBUG
  extern int sqlite4WhereTrace;
  extern int sqlite4OSTrace;
  extern int sqlite4VdbeAddopTrace;
#endif
#ifdef SQLITE4_TEST
  extern char sqlite4_query_plan[];
  static char *query_plan = sqlite4_query_plan;
#ifdef SQLITE4_ENABLE_FTS3
  extern int sqlite4_fts3_enable_parentheses;
#endif
................................................................................
      (char*)&sqlite4_os_type, TCL_LINK_INT);
#endif
#ifdef SQLITE4_TEST
  Tcl_LinkVar(interp, "sqlite_query_plan",
      (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
#endif
#ifdef SQLITE4_DEBUG
  Tcl_LinkVar(interp, "sqlite_addop_trace",
      (char*)&sqlite4VdbeAddopTrace, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_where_trace",
      (char*)&sqlite4WhereTrace, TCL_LINK_INT);
#endif
  Tcl_LinkVar(interp, "sqlite_static_bind_value",
      (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
  Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
      (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);








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  extern int sqlite4_pager_writej_count;
#if SQLITE4_OS_WIN
  extern int sqlite4_os_type;
#endif
#ifdef SQLITE4_DEBUG
  extern int sqlite4WhereTrace;
  extern int sqlite4OSTrace;

#endif
#ifdef SQLITE4_TEST
  extern char sqlite4_query_plan[];
  static char *query_plan = sqlite4_query_plan;
#ifdef SQLITE4_ENABLE_FTS3
  extern int sqlite4_fts3_enable_parentheses;
#endif
................................................................................
      (char*)&sqlite4_os_type, TCL_LINK_INT);
#endif
#ifdef SQLITE4_TEST
  Tcl_LinkVar(interp, "sqlite_query_plan",
      (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
#endif
#ifdef SQLITE4_DEBUG


  Tcl_LinkVar(interp, "sqlite_where_trace",
      (char*)&sqlite4WhereTrace, TCL_LINK_INT);
#endif
  Tcl_LinkVar(interp, "sqlite_static_bind_value",
      (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
  Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
      (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);

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