Minix1.5/commands/make/rules.c
/*************************************************************************
*
* m a k e : r u l e s . c
*
* Control of the implicit suffix rules
*========================================================================
* Edition history
*
* # Date Comments By
* --- -------- ---------------------------------------------------- ---
* 1 ?? ??
* 2 01.07.89 $<,$* bugs fixed, impl. r. ending in expl. r. added RAL
* 3 23.08.89 suffix as macro, testname intr., algorithem to find
* source dep. made more intelligent (see Readme3) RAL
* 4 30.08.89 indention changed PSH,RAL
* 5 03.09.89 fixed LZ eliminated RAL
* 6 07.09.89 rules of type '.c', .DEFAULT added, dep. search impr.RAL
* ------------ Version 2.0 released ------------------------------- RAL
*
*************************************************************************/
#include "h.h"
/*
* Dynamic dependency. This routine applies the suffis rules
* to try and find a source and a set of rules for a missing
* target. If found, np is made into a target with the implicit
* source name, and rules. Returns TRUE if np was made into
* a target.
*/
bool dyndep(np,pbasename,pinputname)
struct name *np;
char **pbasename; /* Name without suffix */
char **pinputname;
{
register char *p;
register char *q;
register char *suff; /* Old suffix */
struct name *op = (struct name *)0,*optmp; /* New dependent */
struct name *sp; /* Suffix */
struct line *lp,*nlp;
struct depend *dp,*ndp;
struct cmd *cmdp;
char *newsuff;
bool depexists = FALSE;
p = str1;
q = np->n_name;
suff = suffix(q);
while (*q && (q < suff || !suff)) *p++ = *q++;
*p = '\0';
if ((*pbasename = malloc(strlen(str1)+1)) == (char *)0 )
fatal("No memory for basename",(char *)0,0);
strcpy(*pbasename,str1);
if ( !suff) suff = p - str1 + *pbasename; /* set suffix to nullstring */
if (!((sp = newname(".SUFFIXES"))->n_flag & N_TARG)) return FALSE;
/* search all .SUFFIXES lines */
for (lp = sp->n_line; lp; lp = lp->l_next)
/* try all suffixes */
for (dp = lp->l_dep; dp; dp = dp->d_next) {
/* compose implicit rule name (.c.o)...*/
newsuff = dp->d_name->n_name;
while (strlen(suff)+strlen(newsuff)+1 >= str1s.len) strrealloc(&str1s);
p = str1;
q = newsuff;
while (*p++ = *q++) ;
p--;
q = suff;
while (*p++ = *q++) ;
/* look if the rule exists */
sp = newname(str1);
if (sp->n_flag & N_TARG) {
/* compose resulting dependency name */
while (strlen(*pbasename) + strlen(newsuff)+1 >= str1s.len)
strrealloc(&str1s);
q = *pbasename;
p = str1;
while (*p++ = *q++) ;
p--;
q = newsuff;
while (*p++ = *q++) ;
/* test if dependency file or an explicit rule exists */
if ((optmp= testname(str1)) != (struct name *)0) {
/* store first possible dependency as default */
if ( op == (struct name *)0) {
op = optmp;
cmdp = sp->n_line->l_cmd;
}
/* check if testname is an explicit dependency */
for ( nlp=np->n_line; nlp; nlp=nlp->l_next) {
for( ndp=nlp->l_dep; ndp; ndp=ndp->d_next) {
if ( strcmp( ndp->d_name->n_name, str1) == 0) {
op = optmp;
cmdp = sp->n_line->l_cmd;
ndp = (struct depend *) 0;
goto found2;
}
depexists = TRUE;
}
}
/* if no explicit dependencies : accept testname */
if (!depexists) goto found;
}
}
}
if ( op == (struct name *)0) {
if( np->n_flag & N_TARG) { /* DEFAULT handling */
if (!((sp = newname(".DEFAULT"))->n_flag & N_TARG)) return FALSE;
if (!(sp->n_line)) return FALSE;
cmdp = sp->n_line->l_cmd;
for ( nlp=np->n_line; nlp; nlp=nlp->l_next) {
if ( ndp=nlp->l_dep) {
op = ndp->d_name;
ndp = (struct depend *)0;
goto found2;
}
}
newline(np, (struct depend *)0, cmdp, 0);
*pinputname = (char *)0;
*pbasename = (char *)0;
return TRUE;
}
else return FALSE;
}
found:
ndp = newdep(op, (struct depend *)0);
found2:
newline(np, ndp, cmdp, 0);
*pinputname = op->n_name;
return TRUE;
}
/*
* Make the default rules
*/
void makerules()
{
struct cmd *cp;
struct name *np;
struct depend *dp;
#ifdef eon
setmacro("BDSCC", "asm");
/* setmacro("BDSCFLAGS", ""); */
cp = newcmd("$(BDSCC) $(BDSCFLAGS) -n $<", (struct cmd *)0);
np = newname(".c.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("CC", "c");
setmacro("CFLAGS", "-O");
cp = newcmd("$(CC) $(CFLAGS) -c $<", (struct cmd *)0);
np = newname(".c.obj");
newline(np, (struct depend *)0, cp, 0);
setmacro("M80", "asm -n");
/* setmacro("M80FLAGS", ""); */
cp = newcmd("$(M80) $(M80FLAGS) $<", (struct cmd *)0);
np = newname(".mac.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("AS", "zas");
/* setmacro("ASFLAGS", ""); */
cp = newcmd("$(ZAS) $(ASFLAGS) -o $@ $<", (struct cmd *)0);
np = newname(".as.obj");
newline(np, (struct depend *)0, cp, 0);
np = newname(".as");
dp = newdep(np, (struct depend *)0);
np = newname(".obj");
dp = newdep(np, dp);
np = newname(".c");
dp = newdep(np, dp);
np = newname(".o");
dp = newdep(np, dp);
np = newname(".mac");
dp = newdep(np, dp);
np = newname(".SUFFIXES");
newline(np, dp, (struct cmd *)0, 0);
#endif
#ifdef tos
#define unix
#endif
/*
* Some of the UNIX implicit rules
*/
#ifdef unix
setmacro("CC", "cc");
setmacro("CFLAGS", "-O");
#ifdef MINIXPC
cp = newcmd("$(CC) -S $(CFLAGS) $<", (struct cmd *)0);
np = newname(".c.s");
#else
cp = newcmd("$(CC) -c $(CFLAGS) $<", (struct cmd *)0);
np = newname(".c.o");
#endif MINIXPC
newline(np, (struct depend *)0, cp, 0);
#ifdef MINIXPC
cp = newcmd("$(CC) $(CFLAGS) -i -o $@ $<", (struct cmd *)0);
#else
cp = newcmd("$(CC) $(CFLAGS) -o $@ $<", (struct cmd *)0);
#endif MINIXPC
np = newname(".c");
newline(np, (struct depend *)0, cp, 0);
setmacro("AS", "as");
cp = newcmd("$(AS) -o $@ $<", (struct cmd *)0);
np = newname(".s.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("YACC", "yacc");
/*setmacro("YFLAGS", ""); */
cp = newcmd("$(YACC) $(YFLAGS) $<", (struct cmd *)0);
cp = newcmd("mv y.tab.c $@", cp);
np = newname(".y.c");
newline(np, (struct depend *)0, cp, 0);
cp = newcmd("$(YACC) $(YFLAGS) $<", (struct cmd *)0);
#ifdef MINIXPC
cp = newcmd("$(CC) $(CFLAGS) -S y.tab.c", cp);
cp = newcmd("mv y.tab.s $@", cp);
np = newname(".y.s");
#else
cp = newcmd("$(CC) $(CFLAGS) -c y.tab.c", cp);
cp = newcmd("mv y.tab.o $@", cp);
np = newname(".y.o");
#endif MINIXPC
cp = newcmd("rm y.tab.c", cp);
newline(np, (struct depend *)0, cp, 0);
setmacro("FLEX", "flex");
cp = newcmd("$(FLEX) $(FLEX_FLAGS) $<", (struct cmd *)0);
cp = newcmd("mv lex.yy.c $@", cp);
np = newname(".l.c");
newline(np, (struct depend *)0, cp, 0);
cp = newcmd("$(FLEX) $(FLEX_FLAGS) $<", (struct cmd *)0);
#ifdef MINIXPC
cp = newcmd("$(CC) $(CFLAGS) -S lex.yy.s", cp);
cp = newcmd("mv lex.yy.s $@", cp);
np = newname(".l.s");
#else
cp = newcmd("$(CC) $(CFLAGS) -c lex.yy.c", cp);
cp = newcmd("mv lex.yy.o $@", cp);
np = newname(".l.o");
#endif MINIXPC
cp = newcmd("rm lex.yy.c", cp);
newline(np, (struct depend *)0, cp, 0);
np = newname(".o");
dp = newdep(np, (struct depend *)0);
np = newname(".s");
dp = newdep(np, dp);
np = newname(".c");
dp = newdep(np, dp);
np = newname(".y");
dp = newdep(np, dp);
np = newname(".l");
dp = newdep(np, dp);
np = newname(".SUFFIXES");
newline(np, dp, (struct cmd *)0, 0);
#endif unix
#ifdef os9
/*
* Fairlight use an enhanced version of the C sub-system.
* They have a specialised macro pre-processor.
*/
setmacro("CC", "cc");
setmacro("CFLAGS", "-z");
cp = newcmd("$(CC) $(CFLAGS) -r $<", (struct cmd *)0);
np = newname(".c.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".ca.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".a.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".o.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".mc.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".mca.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".ma.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".mo.r");
newline(np, (struct depend *)0, cp, 0);
np = newname(".r");
dp = newdep(np, (struct depend *)0);
np = newname(".mc");
dp = newdep(np, dp);
np = newname(".mca");
dp = newdep(np, dp);
np = newname(".c");
dp = newdep(np, dp);
np = newname(".ca");
dp = newdep(np, dp);
np = newname(".ma");
dp = newdep(np, dp);
np = newname(".mo");
dp = newdep(np, dp);
np = newname(".o");
dp = newdep(np, dp);
np = newname(".a");
dp = newdep(np, dp);
np = newname(".SUFFIXES");
newline(np, dp, (struct cmd *)0, 0);
#endif
}