236 lines
8.9 KiB
C
236 lines
8.9 KiB
C
/*** globals.c - global variables/needed across modules ************************
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*
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* Copyright (c) 1988-1990, Microsoft Corporation. All rights reserved.
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*
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* Purpose:
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* This is the routine in which global variables reside.
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*
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* HackAlert:
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* The functionality explained in the Notes below work only because of the way
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* Microsoft Compiler's upto C6.0A allocate initialized data ... in the order
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* in which it is specified. All variables between startOfSave and endOfSave
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* have to be initialized. According to ChuckG this functionality is not
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* guaranteed in C7.0 and so these should be moved to a struct.
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*
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* Notes:
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* This module was created for an interesting reason. NMAKE handles recursive
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* calls by saving its global variables somewhere in memory. It handles this by
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* allocating all global variables which have value changes in each recursive
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* in adjacent memory. The routine called recursively is doMake() and before it
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* is called the address of this chunk of memory is stored. When the recursive
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* call returns the memory is restored using the stored address. startOfSave and
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* endOfSave give the location of this chunk. The reason this method was opted
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* for is that spawning of NMAKE would consume a lot of memory under DOS. This
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* might not be very efficient under OS/2 because the code gets shared.
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*
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* Revision History:
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* 15-Nov-1993 JR Major speed improvements
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* 04-Apr-1990 SB Add fHeapChk
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* 01-Dec-1989 SB Made some variables near and pushed some into saveArea
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* 19-Oct-1989 SB variable fOptionK added (ifdef SLASHK)
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* 02-Oct-1989 SB add dynamic inline file handling support
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* 18-May-1989 SB Support of H and NOLOGO in MAKEFLAGS
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* 24-Apr-1989 SB Added ext_size, filename_size, filenameext_size &
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* resultbuf_size for OS/2 1.2 support
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* 05-Apr-1989 SB made revList, delList, scriptFileList NEAR
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* 22-Mar-1989 SB removed tmpFileStack and related variables
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* 16-Feb-1989 SB added delList to have scriptfile deletes at end of make
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* 21-Dec-1988 SB Added scriptFileList to handle multiple script files
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* removed tmpScriptFile and fKeep (not reqd anymore)
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* 19-Dec-1988 SB Added fKeep to handle KEEP/NOKEEP
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* 14-Dec-1988 SB Added tmpScriptFile to handle 'z' option
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* 30-Nov-1988 SB Added revList to handle 'z' option
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* 23-Nov-1988 SB Added CmdLine[] to handle extmake syntax
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* made pCmdLineCopy Global in build.c
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* 21-Oct-1988 SB Added fInheritUserEnv to inherit macros
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* 15-Sep-1988 RB Move some def's here for completeness.
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* 17-Aug-1988 RB Declare everything near.
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* 06-Jul-1988 rj Ditched shell and argVector globals.
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*
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*******************************************************************************/
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#include "nmake.h"
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#include "nmmsg.h"
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#include "proto.h"
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#include "globals.h"
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#include "grammar.h"
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#if defined(STATISTICS)
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unsigned long CntfindMacro;
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unsigned long CntmacroChains;
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unsigned long CntinsertMacro;
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unsigned long CntfindTarget;
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unsigned long CnttargetChains;
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unsigned long CntStriCmp;
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unsigned long CntunQuotes;
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unsigned long CntFreeStrList;
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unsigned long CntAllocStrList;
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#endif
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/* start of SAVE BLOCK is address of the following BYTE - a dummy */
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UCHAR NEAR startOfSave = 0;
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BOOL NEAR fOptionK = FALSE; /* TRUE if user specifies /K */
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BOOL NEAR fDescRebuildOrder = FALSE; /* TRUE if user specifies /O */
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BOOL NEAR fNoEmsXms = FALSE; /* TRUE if user specified /M */
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BOOL NEAR fSlashKStatus = TRUE; // no error when slash K specified
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/* Used by action.c & nmake.c
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*
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* Required to make NMAKE inherit user modified changes to the environment. To
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* be set to true before defineMacro() is called so that user defined changes
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* in environment variables are reflected in the environment. If set to false
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* then these changes are made only in NMAKE tables and the environment remains
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* unchanged
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*/
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BOOL NEAR fInheritUserEnv = FALSE;
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/*
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* TRUE if /b specified, Rebuild on tie
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*/
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BOOL NEAR fRebuildOnTie = FALSE;
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/*
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* TRUE if /v specified, Inherit macros to child
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*/
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#if defined(SELF_RECURSE)
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BOOL NEAR fInheritMacros = FALSE;
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#endif
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/* Used by action.c and nmake.c
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*
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* delList is the list of delete commands for deleting inline files which are
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* not required anymore (have a NOKEEP action specified.
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*/
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STRINGLIST * NEAR delList = NULL;
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/* Complete list of generated inline files. Required to avoid duplicate names
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* NOTNEEDED
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*/
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STRINGLIST * NEAR inlineFileList = NULL;
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#ifndef NO_OPTION_Z
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/* Used by print.c and build.c and nmake.c
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*
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* revList is the list of Commands in reverse order required for
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* implementing 'z' option. Used by printReverseFile().
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*/
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STRINGLIST * NEAR revList = NULL;
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#endif
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/* from NMAKE.C */
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/* No of blanks is same as no of Allowed options in NMAKE; currently 14 */
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/* L = nologo, H = help */
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/* corr to ACDEHILNPQRSTZ */
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char NEAR makeflags[] = "MAKEFLAGS= ";
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BOOL NEAR firstToken = FALSE; /* to initialize parser */
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BOOL NEAR bannerDisplayed = FALSE;
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UCHAR NEAR flags = 0; /* holds -d -s -n -i */
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UCHAR NEAR gFlags = 0; /* "global" -- all targets*/
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FILE * NEAR file = NULL;
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STRINGLIST * NEAR makeTargets = NULL; /* list of targets to make*/
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STRINGLIST * NEAR makeFiles = NULL; /* user can specify > 1 */
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BOOL NEAR fDebug = FALSE;
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MACRODEF * NEAR pMacros = NULL;
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STRINGLIST * NEAR pValues = NULL;
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/* from LEXER.C */
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/* global flag set if at column zero of a makefile/tools.ini */
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BOOL NEAR colZero = TRUE;
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unsigned NEAR line = 0;
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char * NEAR fName = NULL;
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char * NEAR string = NULL;
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INCLUDEINFO NEAR incStack[MAXINCLUDE]; //Assume this is initialized to null
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int NEAR incTop = 0;
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/* Inline file list -- Gets created in lexer.c and is used by action.c to
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* produce a delete command when 'NOKEEP' or Z option is set
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*/
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SCRIPTLIST * NEAR scriptFileList = NULL;
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/* from PARSER.C */
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/* global boolean value to indicate if tools.ini is being parsed */
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BOOL NEAR init = FALSE;
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UCHAR NEAR stack[STACKSIZE] = {0};
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int NEAR top = -1; /* gets pre-incremented before use*/
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unsigned NEAR currentLine = 0; /* used for all error messages */
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/* from ACTION.C */
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MACRODEF * NEAR macroTable[MAXMACRO] = {NULL};
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MAKEOBJECT * NEAR targetTable[MAXTARGET] = {NULL};
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STRINGLIST * NEAR macros = NULL;
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STRINGLIST * NEAR dotSuffixList = NULL;
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STRINGLIST * NEAR dotPreciousList = NULL;
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RULELIST * NEAR rules = NULL;
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STRINGLIST * NEAR list = NULL;
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char * NEAR name = NULL;
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BUILDBLOCK * NEAR block = NULL;
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UCHAR NEAR currentFlags = FALSE;
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UCHAR NEAR actionFlags = FALSE;
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/* from BUILD.C */
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long NEAR errorLevel = 0L;
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unsigned NEAR numCommands = 0;
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char * NEAR progName = NULL;
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char * NEAR shellName = NULL;
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char NEAR bufPath[512];
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char * NEAR pCmdLineCopy = NULL;
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char CmdLine[MAXCMDLINELENGTH];
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/* from IFEXPR.C */
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UCHAR NEAR ifStack[IFSTACKSIZE] = {0};
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int NEAR ifTop = -1; /* pre-incremented */
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char * NEAR lbufPtr = NULL; /* ptr to alloced buf */
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char * NEAR prevDirPtr = NULL; /* ptr to directive */
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unsigned NEAR lbufSize = 0; /* initial size */
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int NEAR chBuf = -1;
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/* from UTIL.C */
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char * NEAR dollarDollarAt = NULL;
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char * NEAR dollarLessThan = NULL;
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char * NEAR dollarStar = NULL;
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char * NEAR dollarAt = NULL;
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STRINGLIST * NEAR dollarQuestion = NULL;
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STRINGLIST * NEAR dollarStarStar = NULL;
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int NEAR DirHandle = 0;
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/* from parser.c */
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char NEAR buf[MAXBUF] = {0};
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/* end of SAVE BLOCK is address of the following BYTE - a dummy */
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UCHAR NEAR endOfSave = 0;
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/* from action.c */
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char NEAR suffixes[] = ".SUFFIXES";
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char NEAR ignore[] = ".IGNORE";
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char NEAR silent[] = ".SILENT";
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char NEAR precious[] = ".PRECIOUS";
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unsigned NEAR ext_size = 4; /* default .ext size */
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unsigned NEAR filename_size = 8; /* filename size */
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unsigned NEAR filenameext_size = 13; /* filename.ext size */
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unsigned NEAR resultbuf_size = 36; /* fileFindBuf size */
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/* This flag activates special heap functionality.
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*
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* When TRUE allocate() asks for extra bytes from CRT functions and adds
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* signatures before and after the allocation. Any subsequent calls to
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* free_memory() and realloc_memory() check for the presence of these
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* sentinels and assert when such trashing occurs.
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*/
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#ifdef HEAP
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BOOL fHeapChk = TRUE;
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#endif
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