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7 Commits

Author SHA1 Message Date
Przemyslaw Czerpak
917c8057e6 2006-06-14 13:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/config/linux/dir.cf
  * harbour/config/linux/gcc.cf
    * formatting

  * harbour/config/linux/global.cf
  * harbour/config/linux/install.cf
    * added -ldl to linked library list and RANLIB executing after library
      creation

  * harbour/contrib/ole/ole2.c
    * added #include "hbapicls.h"

  + harbour/include/hbapicls.h
  * harbour/include/hbapi.h
    + added HB_IT_ENUM item
    + added collect member to HB_IT_POINTER structure for POINTER items
      inspected by GC
    * changed the order of HB_CODEBLOCK members to safe few bytes on
      alignment
    * removed counters from HB_CODEBLOCK and HB_BASEARRAY structure
    + added hb_xRefInc(), hb_xRefDec(), hb_xRefFree(), hb_xRefCount(),
      hb_xRefResize() functions. They are internal Harbour VM functions
      and covered by internal API macro. Should not be used by 3-rd
      party code because we may change them in the future or even remove.
    + added hb_gcRefInc(), hb_gcRefDec(), hb_gcRefFree(), hb_gcRefCount()
      functions. These are also internal function which corresponds to the
      above hb_x*() ones.
    - removed hb_arrayRelease() function. This function is not longer
      necessary and it should never be public function - it was implemented
      in very dangerous way.
    - removed hb_codeblockDelete() function.
    - removed hb_memvarValueDecGarbageRef()
    + added USHORT usLen parameter to hb_codeblockMacroNew() - when sets
      to non 0 value it informs that PCODE should be copied to dynamically
      allocated buffer.
    * moved all classes/object functions to separate file: hbapicls.h
    + added hb_retptrGC()
    + added internal function hb_memvarGetItem()

  * harbour/include/hbapiitm.h
    - removed hb_itemForwardValue() and added macro which translates
      hb_itemForwardValue() to hb_itemMove()
    + added hb_itemUnShareString() and hb_itemReSizeString() functions
    + added hb_itemSetNil() macro

  * harbour/include/hbdefs.h
    * some cleanups in macro definitions

  * harbour/include/hbexprb.c
    * indenting

  * harbour/include/hbvm.h
  * harbour/include/hbinit.h
    + added hb_vmProcessSymbolsExt(), hb_vmRegisterSymbols(),
      hb_vmFreeSymbols(), hb_vmBeginSymbolGroup(),
      hb_vmInitSymbolGroup(), hb_vmExitSymbolGroup()
    * changed hb_vmProcessSymbols() to return address of register symbol
      table. For normal code it's the same address as given in parameter
      so it does not break backward binary compatibility.
    * changed symbol init macros to work correctly with modified address
      of symbol table

  * harbour/include/hbsetup.h
    * added support for HB_USE_PROFILER macro. Now profiler code is
      is disable in HVM by default
    * commented out HB_ASORT_OPT_ITEMCOPY - it's not longer used - see note.

  * harbour/include/hbstack.h
    * added missing parenthesis in hb_stackItem() macro

  * harbour/include/hbtypes.h
    * updated VM_PROCESS_DLL_SYMBOLS definition
    + added VM_PROCESS_SYMBOLS_EXT
    - removed HB_ARRAYRELEASE

  * harbour/include/hbver.h
    * changed revision number to 2

  * harbour/include/hbvmpub.h
    - remove pFunPtr from HB_DYNS and cover profiler member by
      #ifndef HB_NO_PROFILER
    + added HB_PCODEFUNC structure
    + added HB_FS_PCODEFUNC, HB_FS_DYNCODE and HB_FS_LOCAL - the last one
      is not used yet.

  * harbour/include/hbxvm.h
    * added some multipcode functions for some speed optimization in -gc3
      output

  * harbour/include/hbapicdp.h
  * harbour/source/codepage/cpbg866.c
  * harbour/source/codepage/cpbgiso.c
  * harbour/source/codepage/cpbgwin.c
  * harbour/source/codepage/cpeldos.c
  * harbour/source/codepage/cpelwin.c
  * harbour/source/codepage/cpesdos.c
  * harbour/source/codepage/cpesmwi.c
  * harbour/source/codepage/cpeswin.c
  * harbour/source/codepage/cpgedos.c
  * harbour/source/codepage/cpgewin.c
  * harbour/source/codepage/cphu852.c
  * harbour/source/codepage/cphuiso.c
  * harbour/source/codepage/cphuwin.c
  * harbour/source/codepage/cppl852.c
  * harbour/source/codepage/cppliso.c
  * harbour/source/codepage/cpplmaz.c
  * harbour/source/codepage/cpplwin.c
  * harbour/source/codepage/cppt850.c
  * harbour/source/codepage/cpptiso.c
  * harbour/source/codepage/cpru866.c
  * harbour/source/codepage/cprukoi.c
  * harbour/source/codepage/cpruwin.c
  * harbour/source/codepage/cpsl437.c
  * harbour/source/codepage/cpsl852.c
  * harbour/source/codepage/cpsliso.c
  * harbour/source/codepage/cpslwin.c
  * harbour/source/codepage/cpsrwin.c
  * harbour/source/common/hbfhnd.c
  * harbour/source/common/hbstr.c
  * harbour/source/common/hbver.c
  * harbour/source/compiler/gencli.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/langapi.c
  * harbour/source/rtl/gtalleg/gtalleg.c
  * harbour/source/rtl/gtalleg/ssf.h
  * harbour/source/rtl/gtcgi/gtcgi.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtos2/gtos2.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
    * cleaned the code to avoid warnings for some non ANSI C constructions

  * harbour/source/compiler/cmdcheck.c
    * formatting

  * harbour/source/compiler/gencc.c
    * added some multipcode optimizations

  * harbour/source/compiler/genc.c
    * keep function name set by compiler for static initstatics

  * harbour/source/compiler/harbour.c
    * extend init statics name with the number of used static variables
    * formatting

  * harbour/source/compiler/hbusage.c
    + added my name to developers list - I hope that there is enough
      of my code in Harbour (BTW for quite long time) ;-)

  * harbour/source/rdd/dbcmd.c
    - removed DBF2TEXT() function

  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
    * generate RT error when someone tries to create DBF with memo fields
      without MEMO RDD linked.

  * harbour/source/rtl/errorapi.c
    * replace all hb_vmDo() with hb_vmSend()

  * harbour/source/rtl/math.c
    * use hb_errPutArgs() to pass parameters to error object

  * harbour/source/rtl/philes.c
  * harbour/source/rtl/space.c
  * harbour/source/rtl/strpeek.c
    * some minor optimizations

  * harbour/source/vm/arrays.c
    - removed hb_arrayRelease() function.
    * changed hb_arrayReleaseGarbage() to be safe for recursive call
    * updated to use GC counters

  * harbour/source/vm/arrayshb.c
    * use stack function/macros instead of direct accessing HB_STACK members

  * harbour/source/vm/asort.c
    * removed unused HB_ASORT_OPT_ITEMCOPY

  * harbour/source/vm/classes.c
    * added class code from HVM
    % added fast overloaded operator detection and execution
    + added hb_objHasOperator(), hb_objOperatorCall()
    + added separated overloading of "=" and "==" operators
    * operate on PHB_SYMB not PHB_FUNC - support for pure PCODE function
      without any machine code
    * use stack function/macros instead of direct accessing HB_STACK members
    * separated profiler code
    * some code cleaning

  * harbour/source/vm/codebloc.c
    + added USHORT usLen parameter to hb_codeblockMacroNew() - when sets
      to non 0 value it informs that PCODE should be copied to dynamically
      allocated buffer.
    * updated to use GC counters
    - removed hb_codeblockDelete() function.
    * changed hb_codeblockDeleteGarbage() to be safe for recursive call
    - removed restoring statics base in hb_codeblockEvaluate()

  * harbour/source/vm/debug.c
    * cleaned and optimized some code

  * harbour/source/vm/dynlibhb.c
    + added support for loading and unloading dynamic libraries with PCODE
    + added support for dynamic libraries in Linux (.so)
    + added HB_LIBERROR() - returns error string with last error in
      HB_LIBLOAD() - now works only in Linux

  * harbour/source/vm/dynsym.c
    * separated profiler code
    + use pDynSym->pSymbol->value.pFunPtr instead of pDynSym->pFunPtr

  * harbour/source/vm/estack.c
    + added #include "hbapicls.h"
    + added hb_stackPushReturn(), hb_stackPopReturn()

  * harbour/source/vm/eval.c
  * harbour/source/vm/extend.c
    * use stack function/macros instead of direct accessing HB_STACK members
    + added hb_retptrGC()

  * harbour/source/vm/fm.c
    + added hb_xRefInc(), hb_xRefDec(), hb_xRefFree(), hb_xRefCount(),
      hb_xRefResize() functions. They are internal Harbour VM functions
      and covered by internal API macro. Should not be used by 3-rd
      party code because we may change them in the future or even remove.

  * harbour/source/vm/garbage.c
    + added hb_gcRefInc(), hb_gcRefDec(), hb_gcRefFree(), hb_gcRefCount()
      functions. These are also internal function which corresponds to the
      above hb_x*() ones.
    * changed Step 3 of GC pass and execution of clean-up function to be
      safe for recursive calls and additional activity.
      Ryszard see my note and s_pDeletedBlock
    + added GC inspected HB_IT_POINTER items.

  * harbour/source/vm/hvm.c
    * separated profiler code
    * separated class code from HVM
    + added support for loading and unloading libraries with PCODE modules
    + added support for pure PCODE functions
    + added support for string item resizing and preallocating string buffer
    + added some new multipcode functions for -gc3 optimization
    + added hb_vmProcessSymbolsExt(), hb_vmRegisterSymbols(),
      hb_vmFreeSymbols(), hb_vmBeginSymbolGroup(),
      hb_vmInitSymbolGroup(), hb_vmExitSymbolGroup()
    * changed hb_vmProcessSymbols() to return address of register symbol
      table. For normal code it's the same address as given in parameter
      so it does not break backward binary compatibility.
    + use new code for operator overloading
    * changed FOR EACH to dynamically check iteration scope in
      hb_vmEnumNext()/hb_vmEnumPrev() and remove max number of iteration
      stored on HVM stack
    * temporary use hb_itemUnRefOnce() instead of hb_itemUnRefRefer() as
      workaround for possible GPF. I'd like Ryszard will chose the final
      version

  * harbour/source/vm/itemapi.c
    + added support for preallocating string buffer size
    + added hb_itemUnShareString() and hb_itemReSizeString()
    * updated string items to use counters allocated with each
      memory block by xh_xgrab()/hb_xalloc()
    * updated codeblock and array items to use GC reference counters
    + added GC inspected HB_IT_POINTER items.
    * generate RT error in hb_itemUnreOnce() for enumerator items
      out of scope
    + added hb_itemPutPtrGC()

  * harbour/source/vm/macro.c
    * use pDynSym->pSymbol->value.pFunPtr instead of pDynSym->pFunPtr

  * harbour/source/vm/maindllp.c
    * updated usage of hb_vmProcessSymbols()
    * added hb_vmProcessSymbolsExt()

  * harbour/source/vm/memvars.c
    + added hb_memvarGetItem()
    - removed hb_memvarValueDecGarbageRef()

  * harbour/source/vm/proc.c
    + added #include "hbapicls.h"

  * harbour/source/vm/pvalue.c
    * do not access stack structure directly but use hb_stack*()
      functions (macros)

  * harbour/source/vm/runner.c
    * synced with xHarbour

  * harbour/utils/hbtest/rt_misc.prg
   * added overloading "=" operator. Now "==" and "=" can be overloaded
     with different methods

   All names I used for new functions/macros can be changed. Please look at
   it and if you will some better propositions then we can use it.
   hb_vmProcessSymbolsExt() is added but not used yet.
 2006-06-14 11:21:26 +00:00
Przemyslaw Czerpak
d495e5ad00 2006-05-19 21:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/bin/hb-func.sh
    * added support -go[0-3] and other -g* switches to xhb* scripts

  * harbour/include/hbapi.h
    + added ISSYMBOL() macro
    * formatting

  * harbour/include/hbapirdd.h
    * changed definition of SUPERTABLE for optional dynamic overloading
      this modification will not effect existing code

  * harbour/include/hbrddfpt.h
  * harbour/source/rdd/dbffpt/dbffpt1.c
    * added support for NIL value in SIX3 FPT files

  * harbour/include/hbcomp.h
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/genhrb.c
  * harbour/source/compiler/genjava.c
    ! message symbols are not function symbols - cleaned the HB_FS_MESSAGE
      usage and fix the problem with registering static function in global
      symbol table

  * harbour/source/compiler/gencc.c
    ! fixed typo in compilation for platforms 64 bit LONG

  * harbour/include/hbvmpub.h
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/vm/asort.c
  * harbour/source/vm/evalhb.c
    * formatting

  * harbour/source/rdd/dbcmd.c
    * formatting and some minor clean-up

  * harbour/source/rdd/workarea.c
    * added default SYSNAME method
    ! fixed possible memory leak when APPEND failed in TRANSREC method

  * harbour/source/rdd/hsx/hsx.c
    ! fixed using HS_ADD()/HS_REPLACE() without STRING/BLOCK expression

  * harbour/source/rtl/cdpapi.c
    * cleaned GCC4 warning

  * harbour/source/rtl/do.c
    * changed to keep parameter references in DO() function. Now it works
      like IIF()/EVAL()

  * harbour/source/vm/classes.c
    * removed some definitions repared from hbapi.h
    + added support to passing function references as HB_IT_SYMBOL

  * harbour/source/vm/dynlibhb.c
    ! fixed GPF in HB_LIBDO called with wrong parameter

  * harbour/source/vm/hvm.c
    ! fixed hb_rddGetFieldValue() to not operate on unallocated stack area
      it could cause unpredictable results when RDD had to access HVM, f.e.
      for evaluation some pending relations. The whole code should be
      carefully checked and to not operate on hb_stackTopItem() if other
      functions are called to make the HVM fully reentrant.
    + added commented out support for passing HB_IT_SYMBOL as function
      pointer
    * formatting

  * harbour/source/vm/itemapi.c
    * return "S" for HB_IT_SYMBOL by hb_itemType()
    * formatting
 2006-05-19 19:06:45 +00:00
Przemyslaw Czerpak
ecae40ccf8 2006-05-05 11:30 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/bin/hb-func.sh
    * changed the exit code for .hrb file compilation by xhbcmp

  * harbour/include/hbcomp.h
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hblbl.c
    * removed some variables which are not necessary in Harbour

  * harbour/source/compiler/hbfix.c
    + added unconditional and conditional jump joining optimization

  * harbour/source/vm/classes.c
    * indenting and some minor modifications

  * harbour/source/rdd/dbfcdx/dbfcdx1.c
    ! clear the logical key position buffer for pending relations
      or hot record buffer updating

  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/vm/hvm.c
    * casting

  * harbour/source/vm/macro.c

  * xharbour/include/hbvmpub.h
    * removed HB_FS_ALLOCATED

  * xharbour/source/vm/dynsym.c
    * changed the code for hb_symbolNew() to avoid possible memory leak
      alerts and keep the list of all dynamic symbols accessible.
      It also reduced a little bit the memory fragmentation and total
      size of memory allocated for dynamic symbols.
 2006-05-05 09:37:09 +00:00
Przemyslaw Czerpak
130a3239d2 2006-04-07 15:00 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/bin/hb-func.sh
    * support for detecting startup function in C++ mode

  * harbour/include/hbapi.h
    * some few #defines to translate some xHarbour functions names to Harbour

  * harbour/include/hbxvm.h
  * harbour/source/compiler/gencc.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/itemapi.c
  * harbour/source/common/hbdate.c
    + added optimizations for add and div by integer value
    * changed code generated for double values to avoid limitation in some
      C compilers like MSC and possible differ conversion inside C RTL then
      the one which uses Harbour RTL
    * some minor optimizations, cleanups and code formating

  * harbour/source/compiler/hbfix.c
    * optimize usage of HB_P_NOT PCODE - remove repeated NOT operations
      or revert conditional jumps if they are just after NOT.

  * harbour/source/rdd/dbf1.c
    * added support for NULL value set in memo fields by ACCESS

  * harbour/source/rdd/dbfcdx/dbfcdx1.c
    * fixed ordKeyPos() - for records out of scope

  * harbour/source/rtl/padc.c
  * harbour/source/rtl/padl.c
  * harbour/source/rtl/padr.c
  * harbour/source/rtl/substr.c
    * some minor optimizations to avoid new string item creation when
      it's not necessary

  * harbour/source/vm/classes.c
  * harbour/source/vm/extend.c
    * minor code formatting and optimizations
 2006-04-07 12:57:59 +00:00
Przemyslaw Czerpak
fbd8b70d4b 2006-03-28 13:00 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbcomp.h
    + added hb_compPCodeSize() and hb_compStrongType() declarations

  * harbour/include/hbpp.h
    * formatting

  * harbour/source/compiler/Makefile
  + harbour/source/compiler/hbstrong.c
  * harbour/source/compiler/hbpcode.c
    * moved strong typing code to separate file

  * harbour/source/compiler/hbpcode.c
    + added hb_compPCodeSize() function
    + added support for automatic size checking of variable size PCODEs
      in hb_compPCodeEval()

  * harbour/source/compiler/gencc.c
    * added escaping of '?' character in generated strings to
      avoid possible conflicts with trigraph sequences which
      are part of ANSI C standard
    * force .0 at the end of double numbers to avoid possible range
      conflicts in generated .c files
    * removed unnecessary HB_SYMBOL_UNUSED()

  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/harbour.y
  * harbour/source/macro/macro.l
  * harbour/source/macro/macro.y
    * added #define realloc hb_xrealloc

  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
    * use hb_compPCodeSize() function
    * removed not longer necessary functions for checking the real size
      of variable size PCODEs

  * harbour/source/vm/hvm.c
    * fixed RT error number in hb_vmAddInt() for negative values to be
      Clipper compatible
 2006-03-28 11:00:49 +00:00
Przemyslaw Czerpak
68ceb7444c 2006-03-22 16:05 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    + added hb_stackDecrease( ULONG )

  * harbour/include/hbxvm.h
  * harbour/source/vm/hvm.c
    + added hb_xvmArrayItemPush(), hb_xvmArrayItemPop(), hb_xvmMultByInt()

  * harbour/source/compiler/gencc.c
    % use hb_xvmArrayItemPush(), hb_xvmArrayItemPop(), hb_xvmMultByInt()
      If someone has time then it will be good to also add:
      hb_xvmDivByInt(), hb_xvmModulusInt(), hb_xvmPlusInt(), hb_xvmMinusInt()

  * harbour/source/vm/itemapi.c
    * use simple memcpy() in hb_itemSwap() - it's save in current HVM
      It could become unsafe if we add reference tracing or sth like
      that in the future but in such case we will have to also update
      hb_itemCopy() and hb_itemMove() so we can also update hb_itemSwap()

  * harbour/source/vm/asort.c
  * harbour/source/vm/classes.c
  * harbour/source/vm/memvars.c
  * harbour/source/vm/hvm.c
    * cleaned the code which created HB_ITEMs on C stack. Only three
      places have to be update yet and array/clodeblock creation little
      bit modified and we will be able add automatic GC activation in
      hb_xgrab() or hb_gcAlloc().
 2006-03-22 15:14:21 +00:00
Przemyslaw Czerpak
4ee1406dd5 2006-03-21 02:25 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/make_gnu.bat
  * harbour/make_gnu.cmd
  * harbour/make_gnu.sh
    * added information about GTWVT to GT description for Windows

  * harbour/contrib/rdd_ads/ads1.c
  * harbour/contrib/rdd_ads/adsfunc.c
  * harbour/source/rdd/dbf1.c
    * synced with xHarbour

  * harbour/source/rtl/console.c
    ! fixed PROW() updating to be Clipper compatible when row number
      exceed 16bit integer value

  * harbour/source/rtl/filesys.c
    ! fixed possible GPF when hb_fsCurDirBuff()

  * harbour/source/rtl/str.c
  * harbour/source/rtl/strzero.c
    * minor optimizations

  * harbour/source/rtl/strpeek.c
    ! fixed accessing the last character in STRPEEK() and STRPOKE()

  * harbour/include/hbgtinfo.ch
  * harbour/source/rtl/gtwin/gtwin.c
    + synced with recent xHarbour modifications

  * harbour/source/rtl/gtwvt/gtwvt.c
    * cleaned BCC warning

  * harbour/include/hbapi.h
  * harbour/source/vm/codebloc.c
    * declare BYTE * passed to hb_codeblockNew() as const

  * harbour/include/hbpcode.h
    ! fixed the PCODE numbers in PCODE description, 122 was repeated for
      two different PCODEs: HB_P_ONE and HB_P_MACROLIST

  * harbour/source/compiler/genc.c
    ! fixed hb_p_functionshort pcode size returned by genc function
    ! fixed double value presented in verbose genc mode for HB_P_PUSHDOUBLE
    ! fixed number of cases presented in verbose genc mode for HB_P_SWITCH

  * harbour/source/compiler/hbdead.c
    + added support for dead code elimination in functions which uses
      SWITCH ...; CASE ...; ...; END syntax

  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/hbfix.c
    ! fixed optimization for HB_P_PUSHLOCALNEAR and HB_P_POPLOCALNEAR.
      It was a long existing bug not reported so far because 0, 1 and 2
      PCODEs uses only one BYTE and bad PCODE tracing in hbfix.c didn't
      caused bad side effects as long as number of locals in function
      was smaller then 768. Now for functions HB_P_PUSHLOCAL and
      HB_P_POPLOCAL is used and later changed to NEAR version in hbfix.c
      if possible.

  * harbour/source/compiler/hbfix.c
    * join sequential jumps to optimize constructions like:
         while ...
            ...
            if ...
               exit
            endif
         enddo

  * harbour/source/compiler/hbdead.c
    * remove HB_P_END PCODE also at the and of function if is repeated
      just before, f.e. in code like (source/rtl/color53.prg):
         Function RADGRDEFCO( cColor )
            if isdefcolor()
               Return applydefau( cColor, "W/N", "W/N", "W+/N")
            Else
               Return applydefau( cColor, 3, 1, 4)
            endif
         Return nil
      Now such redundant constructions like above are fully stripped by
      compiler anyhow if someone has time and think is important then can
      clean also this .prg code.


  * harbour/include/Makefile
  * harbour/include/hbcomp.h
  + harbour/include/hbxvm.h
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/compiler/genc.c
  + harbour/source/compiler/gencc.c
  + harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/vm/hvm.c
    + added support for generating real C code not PCODE in .c files.
      Now with  -gc3 Harbour will generate .c files with real .c code
      which is later compiled to real machine code.
      I left PCODE only for code block definitions though it's also
      possible to have even code block compiled to machine code but
      we will have to add a flag to codeblock structure which will
      be checked at runtime and proper method of execution in EVAL
      will be chosen. If you think it's worth of afford then I can
      add it too in some spare time.
      The final binaries are noticable longer then the one which has
      only PCODE but they are faster. The speed improvement depends
      on type of operations. The pure Clipper code which does not
      execute any external time consuming C functions compiled with
      -gc3 is from 10% to 50% faster.
      The side effect of generating pure machine code is also harder
      recompilation but it does not mean that is impossible. If sth
      can be executed by some machines (virtual or hardware) then it
      can always be decompiled by definition.
      This modification opens door for farther optimization, f.e. when
      we will have fully working strong type support then we can add
      using native .c types.
      In fact this module is PCODE to .c translater not part of compiler
      and can be used as separate module to translate generated PCODE,
      f.e. .hrb files.
      Maybe in the future we will change the compiler to generate meta
      code not directly PCODE and it will be possible to make optimizations
      on this meta code which will depend on selected output type:
      VHM PCODE, C code, .NET code, etc. but at this moment adding support
      for .c compilation directly into compiler will make the compiler code
      too much complicated for me - IMHO it's better to invest time into
      clear separation to FRONT_END->REAL_COMPILER->BACK_END
      Please make test with your code. I rebuild whole Harbour code with
      -gc3 set in HB_FLAGS in harbour/config/rules.cf and all seems to
      work correctly. hbtest returns exactly the same results.
      I also made tests with my programs and they work correctly but
      I had to define actions for all PCODEs and it's possible that made
      some typos in some of them which are very seldom used so your tests
      will be very important.
 2006-03-21 01:25:32 +00:00