dvadura@watdragon.waterloo.edu (Dennis Vadura) (10/15/90)
Posting-number: Volume 15, Issue 58 Submitted-by: Dennis Vadura <dvadura@watdragon.waterloo.edu> Archive-name: dmake-3.6/part06 #!/bin/sh # this is part 6 of a multipart archive # do not concatenate these parts, unpack them in order with /bin/sh # file rulparse.c continued # CurArch=6 if test ! -r s2_seq_.tmp then echo "Please unpack part 1 first!" exit 1; fi ( read Scheck if test "$Scheck" != $CurArch then echo "Please unpack part $Scheck next!" exit 1; else exit 0; fi ) < s2_seq_.tmp || exit 1 echo "x - Continuing file rulparse.c" sed 's/^X//' << 'SHAR_EOF' >> rulparse.c X * get marked as having rules and being a target if appropriate. */ X do { X tcp->ce_flag |= tg->ce_flag & (F_RULES|F_TARGET); X tcp = tcp->ce_all; X } X while( tcp != tg ); X break; X } X } X X if( tflag ) Target = TRUE; X _sv_rules = NIL(STRING); X _sv_crule = NIL(STRING); X _sv_targets = NIL(CELL); X _sv_glb_prq = NIL(LINK); X _sv_edgel = NIL(EDGE); X _sp_target = FALSE; X _sv_globprq_only = 0; X X DB_VOID_RETURN; X} X X X Xint XSet_group_attributes( list )/* X============================== X Scan list looking for the standard @ and - (as in recipe line defs) X and set the flags accordingly so that they apply when we bind the X rules to the appropriate targets. */ Xchar *list; X{ X t_attr attr = 0; X int done = FALSE; X int res = FALSE; X X DB_ENTER( "Set_group_attributes" ); X X while( !done ) X switch( *list++ ) { X case '@' : attr |= A_SILENT; ;break; X case '-' : attr |= A_IGNORE; ;break; X case '%' : attr |= A_SWAP; ;break; X X case ' ' : X case '+' : X case '\t': break; X X case '\0': done = TRUE; break; X case '[' : res = TRUE; break; X X default : done = TRUE; res = FALSE; break; X } X X if( res ) _sv_attr |= attr; X DB_RETURN( res ); X} X X X Xstatic void X_do_special( special, op, attr, set_dir, target, prereq, state )/* X================================================================== X Process a special target. So far the only special targets we have X are those recognized by the _is_special function. X X target is always only a single special target. X X NOTE: For the cases of .IMPORT, and .INCLUDE, the cells created by the X parser are never freed. This is due to the fact that it is too much X trouble to get them out of the hash table once they are defined, and X if they are per chance used again it will be ok, anyway, since the X cell is not really used by the code below. */ X Xint special; Xint op; Xt_attr attr; Xchar *set_dir; XCELLPTR target; XCELLPTR prereq; Xint *state; X{ X HASHPTR hp; /* pointer to macro def cell */ X CELLPTR cp; /* temporary pointer into cells list */ X CELLPTR dp; /* pointer to directory dir cell */ X LINKPTR lp; /* pointer at prerequisite list */ X char *dir; /* current dir to prepend */ X char *path; /* resulting path to try to read */ X char *name; /* File name for processing a .INCLUDE */ X char *tmp; /* temporary string pointer */ X FILE *fil; /* File descriptor returned by Openfile */ X X DB_ENTER( "_do_special" ); X X target->ce_flag = F_SPECIAL; /* mark the target as special */ X X switch( special ) { X case ST_EXPORT: X for( ; prereq != NIL(CELL); prereq = prereq->ce_link ) { X DB_PRINT( "par", ("Exporting [%s]", prereq->CE_NAME) ); X hp = GET_MACRO( prereq->CE_NAME ); X X if( hp != NIL(HASH) ) { X char *tmpstr = hp->ht_value; X X if( tmpstr == NIL(char) ) tmpstr = ""; X X if( Write_env_string( prereq->CE_NAME, tmpstr ) != 0 ) X Warning( "Could not export %s", prereq->CE_NAME ); X } X } X break; X X case ST_IMPORT: X if( prereq != NIL(CELL) && prereq->ce_link == NIL(CELL) && X strcmp(prereq->CE_NAME, ".EVERYTHING") == 0 ) X { X ReadEnvironment(); X } X else { X char *tmpstr; X X for( ; prereq != NIL(CELL); prereq = prereq->ce_link ) { X DB_PRINT( "par", ("Importing [%s]", prereq->CE_NAME) ); X X tmpstr = Read_env_string( prereq->CE_NAME ); X X if( tmpstr != NIL(char) ) X Def_macro( prereq->CE_NAME, tmpstr, M_EXPANDED | M_LITERAL ); X else X if( !((Glob_attr | attr) & A_IGNORE) ) X Fatal( "Imported macro `%s' not found", prereq->CE_NAME ); X } X X attr &= ~A_IGNORE; X } X break; X X case ST_INCLUDE: X { X int ignore = (((Glob_attr | attr) & A_IGNORE) != 0); X int pushed = FALSE; X CELL inc; X HASH hcell; X X if( prereq == NIL(CELL) ) Fatal( "No .INCLUDE file(s) specified" ); X X dp = Def_cell( ".INCLUDEDIRS", NIL(CELL) ); X X if( (attr & A_SETDIR) && *(dir = strchr(set_dir, '=')+1) ) { X hcell.ht_name = ".INCLUDE"; X inc.ce_name = &hcell; X inc.ce_dir = dir; X pushed = Push_dir( &inc, ignore ); X } X X for( cp=prereq; cp != NIL(CELL); cp = cp->ce_link ) { X name = cp->CE_NAME; X X if( *name == '<' ) { X /* We have a file name enclosed in <....> X * so get rid of the <> arround the file name */ X X name++; X if( (tmp = strrchr( name, '>' )) != NIL( char ) ) X *tmp = 0; X X if( If_root_path( name ) ) X fil = Openfile( name, FALSE ); X else X fil = NIL(FILE); X } X else X fil = Openfile( name, FALSE ); X X if( fil == NIL(FILE) ) { /*if true ==> not found in current dir*/ X /* Now we must scan the list of prerequisites for .INCLUDEDIRS X * looking for the file in each of the specified directories. X * if we don't find it then we issue an error. The error X * message is suppressed if the .IGNORE attribute of attr is X * set. If a file is found we call Parse on the file to X * perform the parse and then continue on from where we left X * off. */ X X if( (dp->CE_HOW != NIL(HOW)) && X ((lp = dp->CE_HOW->hw_prq) != NIL(LINK)) ) X for(; lp != NIL(LINK) && fil == NIL(FILE); lp=lp->cl_next) { X dir = lp->cl_prq->CE_NAME; X if( strchr(dir, '$') ) dir = Expand(dir); X path = Build_path( dir, name ); X X DB_PRINT( "par", ("Trying to include [%s]", path) ); X X fil = Openfile( path, FALSE ); X if( dir != lp->cl_prq->CE_NAME ) FREE(dir); X } X } X X if( fil != NIL(FILE) ) X Parse( fil ); X else if( !((Glob_attr | attr) & A_IGNORE) ) X Fatal( "Include file %s, not found", name ); X } X X if( pushed ) Pop_dir(FALSE); X attr &= ~(A_IGNORE|A_SETDIR); X } X break; X X case ST_SOURCE: X /* case ST_SUFFIXES: */ X if( prereq != NIL(CELL) ) X _do_targets( op & (R_OP_CL | R_OP_MI | R_OP_UP), attr, set_dir, X target, prereq ); X else { X /* The old semantics of .SOURCE were that an empty list of X * prerequisites clears the .SOURCE list. So we must implement X * that here as a clearout prerequisite operation. Since this is X * a standard operation with the :- opcode we can simply call the X * proper routine with the target cell and it should do the trick X */ X X if( op == R_OP_CL || (op & R_OP_MI) ) X Clear_prerequisites( target->CE_HOW ); X } X X op &= ~(R_OP_MI | R_OP_UP); X break; X X case ST_REST: X /* The rest of the special targets can all take rules, as such they X * must be able to affect the state of the parser. */ X X { X int s_targ = Target; X X Target = TRUE; X _sp_target = TRUE; X *state = _do_targets( op, attr, set_dir, target, prereq ); X Target = s_targ; X X set_dir = NIL( char ); X attr = A_DEFAULT; X op = R_OP_CL; X } X break; X X default:break; X } X X if( set_dir != NIL(char) ) FREE( set_dir ); X if( op != R_OP_CL ) Warning( "Modifier(s) for operator ignored" ); X if( attr != A_DEFAULT ) Warning( "Extra attributes ignored" ); X X DB_VOID_RETURN; X} X X X Xstatic int X_do_targets( op, attr, set_dir, targets, prereq )/* X================================================= */ Xint op; Xt_attr attr; Xchar *set_dir; XCELLPTR targets; XCELLPTR prereq; X{ X CELLPTR tg1; /* temporary target pointer */ X CELLPTR tp1; /* temporary prerequisite pointer */ X char *p; /* temporary char pointer */ X CELLPTR prev_cell; /* pointer for .UPDATEALL processing */ X int update; /* A_UPDATEALL attribute flag */ X int smagic = 0; /* collective amount of magic :-) */ X X DB_ENTER( "_do_targets" ); X X if( update = ((attr & A_UPDATEALL) != 0) ) X if( targets == NIL(CELL) ) X Fatal( ".UPDATEALL attribute requires non-empty list of targets" ); X X prev_cell = NIL(CELL); X for( tg1 = targets; tg1 != NIL(CELL); tg1 = tg1->ce_link ) { X /* Check each target. Check for inconsistencies between :: and : rule X * sets. :: may follow either : or :: but not the reverse. We allocate X * a HOW cell for each target that we see, if it already does not have X * one. If it has a HOW cell then we use it, unless the current X * operator is ::, in which case we must allocate a new one. */ X X int magic = (tg1->ce_flag & F_PERCENT) && !(tg1->ce_flag & F_MAGIC); X smagic |= magic; X X if( !(op & R_OP_DCL ) && (tg1->ce_flag & F_MULTI) && !magic ) X Fatal( "Inconsistency in inference rules for %s", tg1->CE_NAME ); X X if( magic ) X do { X _build_graph( op, tg1, prereq ); X if( prereq != NIL(CELL) ) prereq = prereq->ce_link; X } while( prereq != NIL(CELL) ); X else if( !(tg1->ce_flag & F_SPECIAL) && X (p = _is_magic( tg1->CE_NAME )) != NIL(char) ) X smagic |= _do_magic( op, p, tg1, prereq, attr, set_dir ); X else if( op & R_OP_DCL ) { X HOWPTR hp; X X TALLOC( hp, 1, HOW ); X X hp->hw_next = tg1->CE_HOW; X tg1->CE_HOW = hp; X tg1->ce_flag |= F_MULTI; X } X else if( tg1->CE_HOW == NIL(HOW) ) X TALLOC( tg1->CE_HOW, 1, HOW ); X X if( !magic ) _set_attributes( attr, set_dir, tg1 ); X X if( update ) { X if( smagic ) Fatal( ".UPDATEALL attribute not legal in meta rule" ); X X /* Check this as it would break another cirlcular .UPATEALL list if X * we blindly assign it and it is part of another list already. */ X if( tg1->ce_all != NIL(CELL) ) X Fatal( "Target [%s] appears on multiple .UPDATEALL lists" ); X X tg1->ce_all = prev_cell; X prev_cell = tg1; X } X X /* Build the proper prerequisite list of the target. If the `-', X * modifier was used clear the prerequisite list before adding any X * new prerequisites. Else add them to the head/tail as appropriate. X * X * If the target has F_PERCENT set then no prerequisites are used. */ X X if( !(tg1->ce_flag & F_PERCENT) ) X if( tg1 == targets || !update ) { X register HOWPTR how = tg1->CE_HOW; X X if( op & R_OP_MI ) Clear_prerequisites( how ); X X if( (op & R_OP_UP) && (how->hw_prq != NIL(LINK)) ) X _stick_at_head( how, prereq ); X else X for( tp1=prereq; tp1 != NIL(CELL); tp1 = tp1->ce_link ) X Add_prerequisite( how, tp1, FALSE ); X } X else X if( op & (R_OP_MI | R_OP_UP) ) X Warning( "Modifier(s) `^!' for ':' operator ignored" ); X } X X if( targets != NIL(CELL) ) targets->ce_all = prev_cell; X X X /* Check to see if we have NO targets but some attributes. IF so then X * apply all of the attributes to the complete list of prerequisites. X * Cannot happen for F_PERCENT targets. (ie. in that case targets is always X * not NIL) */ X X if( (targets == NIL(CELL)) && attr ) X if( prereq != NIL(CELL) ) X for( tp1=prereq; tp1 != NIL(CELL); tp1 = tp1->ce_link ) { X if( tp1->CE_HOW == NIL(HOW) ) TALLOC( tp1->CE_HOW, 1, HOW ); X _set_attributes( attr, set_dir, tp1 ); X } X else X _set_global_attr( attr, set_dir ); X X /* Fix up the HOW pointers for the A_UPDATEALL case, they should all point X * to the same cell (targets->CE_HOW), if the .UPDATEALL attribute is given X */ X if( update && targets != NIL(CELL) ) X for( tg1=targets->ce_link; tg1 != NIL(CELL); tg1 = tg1->ce_link ) { X FREE(tg1->CE_HOW); X tg1->CE_HOW = targets->CE_HOW; X } X X /* Now that we have built the lists of targets, the parser must parse the X * rules if there are any. However we must start the rule list with the X * rule specified as via the ; kludge, if there is one */ X X _sv_targets = targets; X _sv_attr = _sv_attro = attr; X _sv_flag = ((op & R_OP_BG) ? F_SINGLE : F_DEFAULT); X X DB_RETURN( RULE_SCAN ); X} X X Xstatic int X_do_magic( op, dot, target, prereq, attr, set_dir )/* X===================================================== X This function takes a magic target of the form .<chars>.<chars> or X .<chars> and builds the appropriate % rules for that target. X X The function builds the % rule, `%.o : %.c' from .c.o, and X `%.a :' from .a */ X Xint op; Xchar *dot; XCELLPTR target; XCELLPTR prereq; Xt_attr attr; Xchar *set_dir; X{ X CELLPTR tg; X CELLPTR prq; X char *tmp, *tmp2; X X DB_ENTER( "_do_magic" ); X X if( prereq != NIL(CELL) ) X Warning( "Ignoring prerequisites of old style meta-target" ); X X op &= (R_OP_CL | R_OP_DCL); X X if( dot == target->CE_NAME ) { /* its of the form .a */ X tg = Def_cell( "%", NIL(CELL) ); /* ==> no prerequisite */ X tmp = _build_meta( target->CE_NAME ); X prq = Def_cell( tmp, NIL(CELL) ); X FREE( tmp ); X X _build_graph( op, tg, prq ); X } X else { X tmp = _build_meta( dot ); X tg = Def_cell( tmp, NIL(CELL) ); X FREE( tmp ); X X tmp = _build_meta( tmp2 = _substr( target->CE_NAME, dot ) ); X prq = Def_cell( tmp, NIL(CELL) ); X FREE( tmp ); X FREE( tmp2 ); X X _build_graph( op, tg, prq ); X } X X tg->ce_flag |= F_PERCENT; X target->ce_flag |= (tg->ce_flag & (F_MULTI | F_PERCENT)) | F_MAGIC; X target->CE_EDGES = tg->CE_EDGES; X X _set_attributes( attr, set_dir, tg ); X X DB_RETURN(1); X} X X X Xstatic char * X_build_meta( name )/* X===================== X Check to see if the name is of the form .c~ if so and if Augmake X translation is enabled then return s.%.c, else return %.suff, where if the X suffix ends in '~' then leave it be.*/ Xchar *name; X{ X char *tmp; X int test = Augmake ? name[strlen(name)-1] == '~' : 0; X X tmp = _strjoin( test ? "s.%" : "%", name, -1, FALSE); X if( test ) tmp[ strlen(tmp)-1 ] = '\0'; X X return(tmp); X} X X X Xstatic void X_build_graph( op, target, prereq )/* X==================================== X This function is called to build the graph for the % rule given by X target : prereq cell combination. This function assumes that target X is a % target and that prereq is a single % prerequisite. op can be X either R_OP_CL or R_OP_DCL, all other operations are ignored. X X It also assumes that target cell has F_PERCENT set already. */ Xint op; XCELLPTR target; XCELLPTR prereq; X{ X int match; X EDGEPTR edge; X X DB_ENTER( "_build_graph" ); X DB_PRINT( "%", ("Building graph for [%s : %s]", target->CE_NAME, X (prereq == NIL(CELL)) ? "" : prereq->CE_NAME) ); X X if( prereq != NIL(CELL) ) { X char *name = prereq->CE_NAME; X int len = strlen(name); X X if( *name == '\'' && name[len-1]=='\'' ){ X _add_global_prereq( prereq ); X name[len-1] = '\0'; X strcpy(name, name+1); X DB_VOID_RETURN; X } X } X X /* The list of edges is kept as a circular list. Thus we must find the X * last edge if we are to add a new edge. Also we must check the list to X * find out if a new edge needs to be added. */ X X match = FALSE; X if( (edge = target->CE_EDGES) != NIL(EDGE) ) { X EDGEPTR start; X X start = edge; X do { X DB_PRINT( "%", ("Trying to match [%s]", edge->ed_prq->CE_NAME) ); X X if( edge->ed_prq == prereq ) X match = TRUE; X else X edge = edge->ed_next; X } X while ( !match && start != edge ); X } X X if( match ) { X /* match is TRUE hence, we found an edge joining the target and the X * prerequisite so set the current target's CE_EDGES pointer to point X * at the edge we found and make sure the new edge has a valid HOW X * pointer. */ X X DB_PRINT( "%", ("It's an old edge") ); X X target->CE_EDGES = edge; X X if( op & R_OP_DCL ) { X HOWPTR hp; X X TALLOC( hp, 1, HOW ); X X hp->hw_next = edge->ed_how; X edge->ed_how = hp; X } X else { X HOWPTR hp = edge->ed_how; X X hp->hw_flag = F_DEFAULT; X hp->hw_attr = A_DEFAULT; X target->ce_dir = NIL(char); X target->ce_flag &= (F_PERCENT|F_MAGIC); X target->ce_attr &= A_NOINFER; X } X X } X else { X EDGEPTR tedge; X X TALLOC( tedge, 1, EDGE ); X X if( edge == NIL(EDGE) ) { X DB_PRINT( "%", ("It's a new edge") ); X edge = tedge; X target->CE_EDGES = edge->ed_next = edge; X } X else { X DB_PRINT( "%", ("It's a new edge (non-empty edge list)") ); X tedge->ed_next = edge->ed_next; X edge->ed_next = tedge; X target->CE_EDGES = edge = tedge; X } X X /* This was a new edge so we must point it's prerequisite pointer at the X * prerequisite, and add the first HOW cell. X * Since this is also the first time we have seen the % target we X * add it to the NFA we are building of % rule targets. */ X X TALLOC( edge->ed_how, 1, HOW ); X X edge->ed_prq = prereq; X edge->ed_tg = target; X X if( !(target->ce_flag & F_DFA) ) { X Add_nfa( target->CE_NAME ); X target->ce_flag |= F_DFA; X } X X if( op & R_OP_DCL ) target->ce_flag |= F_MULTI; X } X X edge->ed_link = _sv_edgel; X _sv_edgel = edge; X _sv_globprq_only = 0; X X DB_VOID_RETURN; X} X X X Xstatic void X_add_global_prereq( pq )/* X========================== X Prerequisite is a non-% prerequisite for a %-rule target, add it to X the target's list of global prerequsites to add on match */ XCELLPTR pq; X{ X register LINKPTR ln; X X TALLOC( ln, 1, LINK ); X ln->cl_next = _sv_glb_prq; X ln->cl_prq = pq; X _sv_glb_prq = ln; X} X X X Xstatic void X_set_attributes( attr, set_dir, cell )/* X============================================= X Set the appropriate attributes for a cell */ Xt_attr attr; Xchar *set_dir; XCELLPTR cell; X{ X char *dir; X X DB_ENTER( "_set_attributes" ); X X /* If .SETDIR attribute is set then we have at least .SETDIR= in the X * set_dir string. So go and fishout what is at the end of the =. X * If not set and not NULL then propagate it to the target cell. */ X X if( attr & A_SETDIR ) { X dir = strchr( set_dir, '=' ) + 1; X X if( cell->ce_attr & A_SETDIR ) X Warning( "Multiple .SETDIR for %s ignored", cell->CE_NAME ); X else X if( *dir ) cell->ce_dir = dir; X } X cell->ce_attr |= attr; /* set rest of attributes for target */ X X DB_VOID_RETURN; X} X X X Xstatic void X_set_global_attr( attr, dir )/* X=============================== X Handle the setting of the global attribute functions based on X The attribute flags set in attr. Note we set the dir path name X to be the value of Start_dir. If Start_dir is initially set X Make will CD to that directory before making any targets. */ Xt_attr attr; Xchar *dir; X{ X int flag; X X /* Some compilers can't handle a switch on a long, and t_attr is now a long X * integer on some systems. foey! */ X for( flag = MAX_ATTR; flag; flag >>= 1 ) X if( flag & attr ) X if( flag == A_PRECIOUS) Def_macro(".PRECIOUS", "y", M_EXPANDED); X else if( flag == A_SILENT) Def_macro(".SILENT", "y", M_EXPANDED); X else if( flag == A_IGNORE ) Def_macro(".IGNORE", "y", M_EXPANDED); X else if( flag == A_EPILOG ) Def_macro(".EPILOG", "y", M_EXPANDED); X else if( flag == A_PROLOG ) Def_macro(".PROLOG", "y", M_EXPANDED); X else if( flag == A_NOINFER ) Def_macro(".NOINFER", "y", M_EXPANDED); X else if( flag == A_SEQ ) Def_macro(".SEQUENTIAL","y", M_EXPANDED); X else if( flag == A_SHELL ) Def_macro(".USESHELL", "y", M_EXPANDED); X else if( flag == A_MKSARGS ) Def_macro(".MKSARGS", "y", M_EXPANDED); X else if( flag == A_SWAP ) Def_macro(".SWAP", "y", M_EXPANDED); X else if( flag == A_SETDIR ) { X dir = strchr( dir, '=' ) + 1; X if( *dir ) Start_dir.ce_dir = dir; X } X X attr &= ~A_GLOB; X if( attr ) Warning( "Non global attribute(s) ignored" ); X} X X X Xstatic void X_stick_at_head( how, pq )/* X=========================== X Add the prerequisite list to the head of the existing prerequisite X list */ X XHOWPTR how; /* HOW cell for target node */ XCELLPTR pq; /* list of prerequisites to add */ X{ X DB_ENTER( "_stick_at_head" ); X X if( pq->ce_link != NIL(CELL) ) _stick_at_head( how, pq->ce_link ); X Add_prerequisite( how, pq, TRUE ); X X DB_VOID_RETURN; X} X X X Xstatic t_attr X_is_attribute( name )/* X======================= X Check the passed name against the list of valid attributes and return the X attribute index if it is, else return 0, indicating the name is not a valid X attribute. The present attributes are defined in dmake.h as A_xxx #defines, X with the corresponding makefile specification: (note they must be named X exactly as defined below) X X Valid attributes are: .IGNORE, .SETDIR=, .SILENT, .PRECIOUS, .LIBRARY, X .EPILOG, .PROLOG, .LIBRARYM, .SYMBOL, .UPDATEALL, X .USESHELL, .NOINFER X X NOTE: The strcmp's are OK since at most three are ever executed for any X one attribute check, and that happens only when we can be fairly X certain we have an attribute. */ Xchar *name; X{ X t_attr attr = 0; X X DB_ENTER( "_is_attribute" ); X X if( *name++ == '.' ) X switch( *name ) X { X case 'E': attr = (strcmp(name, "EPILOG")) ? 0 : A_EPILOG; break; X case 'I': attr = (strcmp(name, "IGNORE")) ? 0 : A_IGNORE; break; X case 'L': attr = (strcmp(name, "LIBRARY")) ? 0 : A_LIBRARY; break; X case 'M': attr = (strcmp(name, "MKSARGS")) ? 0 : A_MKSARGS; break; X case 'N': attr = (strcmp(name, "NOINFER")) ? 0 : A_NOINFER; break; X X case 'U': X if( !strcmp(name, "UPDATEALL") ) attr = A_UPDATEALL; X else if( !strcmp(name, "USESHELL")) attr = A_SHELL; X else attr = 0; X break; X X case 'P': X if( !strcmp(name, "PRECIOUS") ) attr = A_PRECIOUS; X else if( !strcmp(name, "PROLOG") ) attr = A_PROLOG; X else attr = 0; X break; X X case 'S': X if( !strncmp(name, "SETDIR=", 7) ) attr = A_SETDIR; X else if( !strcmp(name, "SILENT") ) attr = A_SILENT; X else if( !strcmp(name, "SYMBOL") ) attr = A_SYMBOL; X else if( !strcmp(name, "SEQUENTIAL")) attr = A_SEQ; X else if( !strcmp(name, "SWAP")) attr = A_SWAP; X else attr = 0; X break; X } X X DB_RETURN( attr ); X} X X X Xstatic int X_is_special( tg )/* X=================== X This function returns TRUE if the name passed in represents a special X target, otherwise it returns false. A special target is one that has X a special meaning to dmake, and may require processing at the time that X it is parsed. X X Current Special targets are: X .GROUPPROLOG .GROUPEPILOG .INCLUDE .IMPORT X .EXPORT .SOURCE .SUFFIXES .ERROR X .INCLUDEDIRS .MAKEFILES .REMOVE X*/ Xchar *tg; X{ X DB_ENTER( "_is_special" ); X X if( *tg++ != '.' ) DB_RETURN( 0 ); X X switch( *tg ) X { X case 'I': X if( !strcmp( tg, "IMPORT" ) ) DB_RETURN( ST_IMPORT ); X else if( !strcmp( tg, "INCLUDE" ) ) DB_RETURN( ST_INCLUDE ); X else if( !strcmp( tg, "INCLUDEDIRS" )) DB_RETURN( ST_REST ); X break; X X case 'M': X if( !strcmp( tg, "MAKEFILES" ) ) DB_RETURN( ST_REST ); X break; X X case 'E': X if( !strcmp( tg, "ERROR" ) ) DB_RETURN( ST_REST ); X else if( !strcmp( tg, "EXPORT" ) ) DB_RETURN( ST_EXPORT ); X break; X X case 'G': X if( !strcmp( tg, "GROUPPROLOG" )) DB_RETURN( ST_REST ); X else if( !strcmp( tg, "GROUPEPILOG" )) DB_RETURN( ST_REST ); X break; X X case 'R': X if( !strcmp( tg, "REMOVE" ) ) DB_RETURN( ST_REST ); X break; X X case 'S': X if( !strncmp( tg, "SOURCE", 6 ) ) DB_RETURN( ST_SOURCE ); X else if( !strncmp(tg, "SUFFIXES", 8 )) DB_RETURN( ST_SOURCE ); X break; X } X X DB_RETURN( 0 ); X} X X X Xstatic int X_is_percent( np )/* X=================== X return TRUE if np points at a string containing a % sign */ Xchar *np; X{ X return( (strchr(np,'%') && (*np != '\'' && np[strlen(np)-1] != '\'')) ? X TRUE : FALSE ); X} X X Xstatic char * X_is_magic( np )/* X================= X return TRUE if np points at a string of the form X .<chars>.<chars> or .<chars> X where chars are only alpha characters. X X NOTE: reject target if it begins with ./ or ../ */ Xchar *np; X{ X register char *n; X X n = np; X if( *n != '.' ) return( NIL(char) ); X if (strchr(DirBrkStr, *(n+1))!=NULL || *(n+1) == '.' ) X return (NIL(char)); X X for( n++; isgraph(*n) && (*n != '.'); n++ ); X X if( *n != '\0' ) { X if( *n != '.' ) return( NIL(char) ); X for( np = n++; isgraph( *n ) && (*n != '.'); n++ ); X if( *n != '\0' ) return( NIL(char) ); X } X else if( !Augmake ) X return( NIL(char) ); X X /* np points at the second . of .<chars>.<chars> string. X * if the special target is of the form .<chars> then np points at the X * first . in the token. */ X X return( np ); X} X SHAR_EOF echo "File rulparse.c is complete" chmod 0440 rulparse.c || echo "restore of rulparse.c fails" echo mkdir - readme mkdir readme echo "x - extracting readme/release (Text)" sed 's/^X//' << 'SHAR_EOF' > readme/release && Xdmake Version 3.6 X================= X XMANDATORY REPLACEMENT FOR VERSION 3.5 PATCH LEVEL 1 and PATCH LEVEL 2 X XNature: This version of dmake MUST replace all versions of dmake 3.5 patch X------- levels 1 and 2, and all versions of dmake 3.5 patch level 1 and 2 X must then be DELETED. This release addresses several issues. X X 1. Copyright infringement claim made by MKS, of Waterloo. X 2. Modifications to text diversion processing. X 3. Support for DOS Swapping, and MKS argument passing. X 4. Other minor nits and tweaks. X X This distribution advances dmake to Version 3.6, patch level 1. This X version is certified free of MKS copyrighted code. See below for X details. X XAvailability: X------------- X dmake is available via anonymous ftp from watmsg.uwaterloo.edu X (129.97.129.9) as: X X pub/src/dmake-3.6.tar.Z X pub/src/dmake-3.6.zoo X X and comes in either a compressed tar or zoo archive take your pick. X XAcknowledgements: X----------------- X Thanks to all who submitted code for new features, suggestions for X improvements, and bug fixes. Special thanks to those who helped X test this version of dmake on the many platforms that the X distribution now supports. I have tried to make sure no gotchas X remain, if you encounter problems installing or running dmake please X let me know. As always, I am always happy to receive e-mail. X X XDETAILS OF CHANGES: X=================== X XMKS Copyright Infringement: X--------------------------- X Due to a misunderstanding over past contractual obligations between X myself and Mortice Kern Systems of Waterloo, Ontario, Canada (MKS), X the original posting of dmake unitentionally contains some code X derived from MKS proprietary code. X X This version rectifies that situation and MUST replace all versions X of DMAKE and DMAKE patches that have been previously distributed. X Please delete from any archive site versions of DMAKE source code X labeled 3.5 patch level 1 or patch level 2 and dmake 3.5 patch 1. X X Version 3.6 of the dmake source replaces *ALL* MKS proprietary code. X In particular, putenv.c in the bsd43 and sysvr1 directories is new. X Three routines in percent.c; Add_dfa, Construct_dfa, and Advance_dfa X have been replaced. Lastly, TEXT DIVERSION processing has been removed X from make.c and <+...+> constructions are replaced by the $(mktmp ...) X construct (see below for more details). The changes relating to the X above mentioned modifications have been reviewed by MKS and certified by X MKS to be free of MKS proprietary code. The note below is from MKS X and releases dmake version 3.6 patch level 1 from any MKS copyright X infringement claims. X X "MKS has reviewed the latest sources, as of 90.09.20, X for the files make.c, putenv.c, and percent.c, which X are part of the program dmake version 3.6, and found X these files to be free of MKS proprietary source code." X X No functionality is lost as a result of these changes, however X certain constructs may have to be expressed using a new syntax. See X the documentation and the comments below for details. X X XText Diversion Processing: X-------------------------- X As alluded to above, the <+...+> text diversion facility has been X officially replaced by a new facility of the form $(mktmp ...) details of X which may be found in the TEXT DIVERSION section of the documentation. X Briefly, the construct: X X exe:; link @<+$(OBJFILES:t"+\n")+> X X is replaced by: X X exe:; link @$(mktmp $(OBJFILES:t"+\n")) X X similarly the construct: X X all : X echo hi <+ X line1 X line2 +> X X is replaced by: X X all : X echo hi $(mktmp\ X line1\n\ X line2) X X where the \n\ is added to the end of each line within the data portion of X the $(mktmp ...) construction. For a number of reasons it is my belief X that this new construct is a better implementation of text diversions than X the previous <+...+> as it can be used in macro expressions that appear X anywhere in the makefile. X X Compatibility is retained for previous versions of dmake that utilize X a simple form of the <+...+> construct. If your <+...+> constructs do not X span multiple lines (cf second example above), then the new version of X dmke will recognize these and will map them to the appropriate X $(mktmp ...) construct. Thus, If you use <+...+> and you do not allow the X interior data to span multiple lines and both <+ and +> appear as clear X text in the same recipe line or macro value, then dmake will process these X correctly and the output is 100% compatible to version 3.5 patch level 2. X Any other use of <+...+> must be converted to the new $(mktmp ...) form. X X The new form also provides for massaging the name of the temporary file X which replaces the text in the recipe. See the documentation regarding X the special macros USESHELL, TMPFILE, and DIVSHELL. This is of most use X in an MSDOS environment. X X XDOS Swapping, and MKS argument passing: X--------------------------------------- X dmake now supports swapping the executable image to secondary storage when X it executes a child. Swapping is enabled by setting the new attribute X .SWAP to on, either for a target or globally, or by specifying the '%' X modifier to a recipe line. So for example: X X xx .SWAP :; recipe X X and X X xx :;% recipe X X are equivalent. X X The MKS DOS argument passing conventions are now supported, and dmake is X able to communicate with programs that understand those conventions. The X global variable .MKSARGS is used to enable/disable this facility. With X these modifications, dmake now supports long command lines for running X commands that understand the MKS argument passing convention, and it does X not run into memory limitations when executing child processes in most X situations. X X Both .SWAP and .MKSARGS are ignored by non-MSDOS versions of dmake. X See the manual page for further details. X X XOther tweaks modifications and BUG FIXES: X----------------------------------------- X-- Slight modifications to msdos/startup.mk files. Set DIRSEPSTR to \ X if using command.com as the shell, otherwise set internaly to /. X Removed -o $@ from MSC startup.mk, and added $(ASFLAGS) to %$O : %$S X rule, in all default DOS startup.mk files. X X-- Added POSIX '+' character to start of recipe lines. You can use this X to force the recipe line to be executed by a shell, in addition to the X test used for .SHELLMETAS. X X To make the '+' fit into the dmake mold, a new attribute has been created. X the .USESHELL attribute forces the use of a shell for the target or X recipe group for which it is specified. If it is specified as a global X attribute then all recipes executed will use a shell. The macro variable X .USESHELL corresponds to the special target '.USESHELL :' in the same way X that .IGNORE corresponds to '.IGNORE :'. X X-- Added *= and *:= macro assignmen operator, patches from X Piercarlo Grandi <pcg@compsci.aberystwyth.ac.uk>, see the documentation X for more details. X X-- Changed makefile.mk to force use of a shell (via '+') to make OBJDIR, X doesn't break on baren DOS systems that way :-). Many other small changes X to msdos and unix versions of various config.mk files. X X-- Added two new macros related to diversion file processing. X See the TEXT DIVERSIONS section of the man page for an explanation of this X functionality. X X TMPFILE - is set to the name of the temporary file whenever X a temporary file is opened by dmake. X USESHELL- It's value is 'no' if the current recipe line is not forced X to use a shell via a '+' or .USESHELL directive. It's X value is 'yes' if such a directive is given. X DIVFILE - is defined in startup.mk and gives a macro to use to set X name of the diversion file, (under UNIX, DIVFILE defaults to X $(TMPFILE), under MSDOS it is the value of $(TMPFILE) with X any / replaced by the appropriate number of \ depending, on X if a shell is used or not). X X-- \\ appearing at the end of a line does not cause a continuation to the next X line. X X-- Modified the definition of macro supplied from the command line to allow X macros defined using += or +:= to be modified further from within the X makefile. X X-- Added MAKETARGETS macro which contains the name of the target(s), if any, X specified on the command line. X X-- Modified Pack_argv in sysintf.c to use dynamic memory allocation rather X than limit it to a fixed number of arguments. X X-- BIG BUG FIX: X This one is cute. It turns out that all individual recipe line X attributes supplied via '@', '-', and now '+' and '%' characters were X getting or'ed together and applied to ALL recipe lines of the recipe, yulk! X X-- BUG FIX: X Fixed off by one error in make.c:_print_cmnd when remapping \n after X printing the text. X X-- BUG FIX: Bug reported by holos0!lbr@gatech.edu X Inferred prerequisites were not getting made when a target was found to X be out of date relative to a non-inferred prerequisite, and the inferred X prerequisite did not exist but the file it could be made from did and was X not out of date relative to the target. This was a problem with the X following setup. X X file.o : header.h X X File system contains file.o, header.h and RCS/file.c,v, If file.o is newer X than RCS/file.c,v and older than header.h, then dmake didn't check out X file.c prior to doing the compile. X X-- BUG FIX: Applied patch from UUCP: twc@legal or ...sun!ys2!legal!twc X to msdos/_chdir.c to fix changing of directory in OS/2 protected mode X X-- BUG FIX: Applied patch from UUCP: twc@legal or ...sun!ys2!legal!twc X to msdos/switchar.c to read environment variable SWITCHAR instead of using X unsupported call in DOS. OS/2 doesn't have _get_switchar call! (It damn X well should though! Microsoft is really dumb in this respect!) X X Extended this patch to use SWITCHAR environment variable in all DOS X versions. This ensures that DOS 4.0 can selectively change SWITCHAR by X using the environment variable. X X Dmake now first gets SWITCHAR from the environment and if that fails it X tries the unsupported MSDOS call. Under UNIX getswitchar returns '-' X as before. X X-- BUG FIX: Changed the line _ar.ar_size = atol(arhdr.ar_size) found in X ar_scan() in arlib.c to not use atol() if ASCARCH is FALSE. I forget who X reported this one :-) SHAR_EOF chmod 0640 readme/release || echo "restore of readme/release fails" echo "x - extracting readme/os2 (Text)" sed 's/^X//' << 'SHAR_EOF' > readme/os2 && XAs shipped the DOS versions of dmake will run under OS/2 protected mode. XI have a port that works in real mode but it was based on the DOS version. XI would like to produce an independent OS/2 directory (cf unix) that contains Xall necessary files to make an OS/2 version, and to boot strap it with a Xcommand shell. If anyone is willing to do this I will send them the OS/2 Xmods that need to be made. SHAR_EOF chmod 0640 readme/os2 || echo "restore of readme/os2 fails" echo "x - extracting readme/msdos (Text)" sed 's/^X//' << 'SHAR_EOF' > readme/msdos && XSome notes on the MSDOS implementation of dmake. X XMaking the binary: X------------------ X X Turbo-C: By default the turbo-C (make tcc) script will make a version X of the binary that is compiled for an 8088 and up cpu. Once made X you can make a version for a 186 or 286 by modifying X msdos/tccdos/config.mk and setting CFLAGS to contain the right X flags, comments are supplied in the makefile to do so. X X The contents of the default response files X (named in msdos/tccdos/mk*.bat) assume specific locations for X your turbo-C libraries, you may need to edit these before actually X getting a successful binary linked. X X Microsoft-C 4.0 to 5.1: X Is straight forward, just type 'make msc' and the compile will X chunk along. X X Microsoft-C 6.0: X Is equally easy, just type 'make msc60' and the compile will X chunk along. Once made, if you want to use dmake to compile X itself then set the environment variable MSC_VER=6.0, otherwise X the compile flags will not be correct. You may also supply this X as an option on the dmake command line. X X Memory Requirements and Swapping: X dmake requires quite a bit of memory to run. As a result X a swapping version of dmake is made if you issue the command X 'make tccswp', 'make mscswp' or 'make msc60swp'. If you leave X the 'swp' off then corresponding (as described above) non-swapping X versions are made. X X The swapping code currently only swaps to DISK, I have left hooks X in to accomodate XMS and EMS, I have some code that performs the X necessary XMS/EMS accesses but have not incorporated it in yet. X It appears that a ramdisk seems to work just fine. If anyone X wishes to fill in the hooks please do and I'll be happy to include X them in future distributions. X X dmake 'makefile.mk' control variables: X Initially dmake is compiled for the compact memory model. X Setting MODEL={s,c,m,l} on the command line will select a different X memory model. Setting NOSWAP:=1 on the command line X will disable the compile and linking of the swap code. X A summary of the available configuration variables follows: X X MODEL={s,c,m,l} - Select {small, compact, medium, large} X memory model respectively. X NOSWAP:=y - If set, do not compile the dmake X swapping version of spawnvpe. X MSC_VER:=6.0 - Must be set if using MSC 6.0 and dmake X is used to make a new version of dmake. X X ^C and stopping a make: X Handling of ^C in the swapping version seems to be somewhat SHAR_EOF echo "End of part 6" echo "File readme/msdos is continued in part 7" echo "7" > s2_seq_.tmp exit 0