Initial revision

This commit is contained in:
ceriel 1988-07-22 19:01:13 +00:00
parent 7515b51d64
commit a0a265736c
11 changed files with 1971 additions and 0 deletions

10
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Makefile
README
check.c
h.h
input.c
macro.c
main.c
make.c
reader.c
rules.c

29
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# Makefile for make!
EMHOME=../..
OBJS = check.o input.o macro.o main.o \
make.o reader.o rules.o
# unix not defined under Xenix ???
CFLAGS = -Dunix
all: make
install: make
cp make $(EMHOME)/bin/make
cmp: make
cmp make $(EMHOME)/bin/make
clean:
rm -f *.o make
pr:
@pr README Makefile h.h main.c check.c input.c macro.c make.c reader.c rules.c
opr:
make pr ^ opr
make: $(OBJS)
$(CC) -i -o make $(OBJS)
$(OBJS): h.h

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Following is a repost of the public domain 'make' that I posted
to net.sources a couple of months ago. I have fixed a few bugs, and
added some more features, and the resulting changes amounted to
about as much text as the whole program (hence the repost).
For those that missed the net.sources posting, this is a public domain
re-implementation of the UNIX make program. There is no manual included;
for documentation, refer to a UNIX manual, or the source.
Here is a list of the changes made:
i) If '-' (ignore) or '@' (silent) where used at the start
of a command, their effect was not turned off for the following
commands.
ii) A special target (.SUFFIXES, .PRECIOUS) or a rule (.c.o, .a.o),
if first in the file would be taken as the default target.
This resulted in error messages like "Don't know how to
make .c", because things like .SUFFIXES were being made.
This was further complicated by ---
iii) Special target lines with no dependents (ie. .SUFFIXES:\n)
were not clearing out the existing dependents like
they should.
iv) Default rules could not be redefined because of the error
checking for commands being defined twice. Now you are
allowed to define a target beinging with '.', having
no dependents with commands.
v) The -q option didn't do the time comparison correctly,
or clear the variable used to keep track of this. Thus
it didn't work very well.
vi) The syntax ${..} for macro's supported by UNIX make was
not supported.
vii) There wuz a couple of spelling errors.
viii) When make checked for implicit rules on targets without
a suffix, there were problems. (Note: The ~ feature of
UNIX make wasn't and still isn't supported)
ix) The -n option did not print @ lines like it was supposed to.
x) :: added. (See UNIX manual)
xi) $? added. (see UNIX manual)
Hacked further by Ceriel Jacobs to make it work better. Use this "make" to
install ACK under Microsoft Xenix V3.2. Some of the makefiles are just too
big for the Xenix "make". Strange, they work on a PDP-11 ...

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/*
* Check structures for make.
*
* $Header$
*/
#include <stdio.h>
#include "h.h"
/*
* Prints out the structures as defined in memory. Good for check
* that you make file does what you want (and for debugging make).
*/
void
prt()
{
register struct name * np;
register struct depend * dp;
register struct line * lp;
register struct cmd * cp;
register struct macro * mp;
for (mp = macrohead; mp; mp = mp->m_next)
fprintf(stderr, "%s = %s\n", mp->m_name, mp->m_val);
fputc('\n', stderr);
for (np = namehead.n_next; np; np = np->n_next)
{
if (np->n_flag & N_DOUBLE)
fprintf(stderr, "%s::\n", np->n_name);
else
fprintf(stderr, "%s:\n", np->n_name);
if (np == firstname)
fprintf(stderr, "(MAIN NAME)\n");
for (lp = np->n_line; lp; lp = lp->l_next)
{
fputc(':', stderr);
for (dp = lp->l_dep; dp; dp = dp->d_next)
fprintf(stderr, " %s", dp->d_name->n_name);
fputc('\n', stderr);
for (cp = lp->l_cmd; cp; cp = cp->c_next)
#ifdef os9
fprintf(stderr, "- %s\n", cp->c_cmd);
#else
fprintf(stderr, "-\t%s\n", cp->c_cmd);
#endif
fputc('\n', stderr);
}
fputc('\n', stderr);
}
}
/*
* Recursive routine that does the actual checking.
*/
void
check(np)
struct name * np;
{
register struct depend * dp;
register struct line * lp;
if (np->n_flag & N_MARK)
fatal("Circular dependency from %s", np->n_name);
np->n_flag |= N_MARK;
for (lp = np->n_line; lp; lp = lp->l_next)
for (dp = lp->l_dep; dp; dp = dp->d_next)
check(dp->d_name);
np->n_flag &= ~N_MARK;
}
/*
* Look for circular dependancies.
* ie.
* a: b
* b: a
* is a circular dep
*/
void
circh()
{
register struct name * np;
for (np = namehead.n_next; np; np = np->n_next)
check(np);
}
/*
* Check the target .PRECIOUS, and mark its dependentd as precious
*/
void
precious()
{
register struct depend * dp;
register struct line * lp;
register struct name * np;
if (!((np = newname(".PRECIOUS"))->n_flag & N_TARG))
return;
for (lp = np->n_line; lp; lp = lp->l_next)
for (dp = lp->l_dep; dp; dp = dp->d_next)
dp->d_name->n_flag |= N_PREC;
}

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/*
* Include header for make
*
* $Header$
*/
#ifndef uchar
#ifdef os9
#define uchar char
#define void int
#define fputc putc
#else
#define uchar unsigned char
#endif
#endif
#define bool int
#define time_t long
#define TRUE (1)
#define FALSE (0)
#define max(a,b) ((a)>(b)?(a):(b))
#define DEFN1 "makefile" /* Default names */
#ifdef unix
#define DEFN2 "Makefile"
#endif
#ifdef eon
#define DEFN2 "Makefile"
#endif
/* os9 is case insensitive */
#define LZ (2048) /* Line size */
/*
* A name. This represents a file, either to be made, or existant
*/
struct name
{
struct name * n_next; /* Next in the list of names */
char * n_name; /* Called */
struct line * n_line; /* Dependencies */
time_t n_time; /* Modify time of this name */
uchar n_flag; /* Info about the name */
};
#define N_MARK 0x01 /* For cycle check */
#define N_DONE 0x02 /* Name looked at */
#define N_TARG 0x04 /* Name is a target */
#define N_PREC 0x08 /* Target is precious */
#define N_DOUBLE 0x10 /* Double colon target */
/*
* Definition of a target line.
*/
struct line
{
struct line * l_next; /* Next line (for ::) */
struct depend * l_dep; /* Dependents for this line */
struct cmd * l_cmd; /* Commands for this line */
};
/*
* List of dependents for a line
*/
struct depend
{
struct depend * d_next; /* Next dependent */
struct name * d_name; /* Name of dependent */
};
/*
* Commands for a line
*/
struct cmd
{
struct cmd * c_next; /* Next command line */
char * c_cmd; /* Command line */
};
/*
* Macro storage
*/
struct macro
{
struct macro * m_next; /* Next variable */
char * m_name; /* Called ... */
char * m_val; /* Its value */
uchar m_flag; /* Infinite loop check */
uchar m_prio; /* 5 levels:
- 0 for internal ($(CC), etc)
- 1 (reserved for environment)
- 2 for makefile
- 3 for command line
- 4 for special ($*,$<, etc)
*/
};
extern char * myname;
extern struct name namehead;
extern struct macro * macrohead;
extern struct name * firstname;
extern bool silent;
extern bool ignore;
extern bool rules;
extern bool dotouch;
extern bool quest;
extern bool domake;
extern char str1[];
extern char str2[];
extern int lineno;
char * fgets();
char * index();
char * rindex();
char * malloc();
char * strcpy();
char * strcat();
extern int errno;
void circh();
char * getmacro();
struct macro * setmacro();
void input();
void error();
void expand();
void fatal();
int make();
void modtime();
struct name * newname();
struct depend * newdep();
struct cmd * newcmd();
void newline();
void prt();
char * suffix();
void touch();
void makerules();
char * gettok();
void precious();

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/*
* Parse a makefile
*
* $Header$
*/
#include <stdio.h>
#include <ctype.h>
#include "h.h"
struct name namehead;
struct name * firstname;
char str1[LZ]; /* General store */
char str2[LZ];
/*
* Intern a name. Return a pointer to the name struct
*/
struct name *
newname(name)
char * name;
{
register struct name * rp;
register struct name * rrp;
register char * cp;
for
(
rp = namehead.n_next, rrp = &namehead;
rp;
rp = rp->n_next, rrp = rrp->n_next
)
if (strcmp(name, rp->n_name) == 0)
return rp;
if ((rp = (struct name *)malloc(sizeof (struct name)))
== (struct name *)0)
fatal("No memory for name");
rrp->n_next = rp;
rp->n_next = (struct name *)0;
if ((cp = malloc((unsigned)(strlen(name)+1))) == (char *)0)
fatal("No memory for name");
strcpy(cp, name);
rp->n_name = cp;
rp->n_line = (struct line *)0;
rp->n_time = (time_t)0;
rp->n_flag = 0;
return rp;
}
/*
* Add a dependant to the end of the supplied list of dependants.
* Return the new head pointer for that list.
*/
struct depend *
newdep(np, dp)
struct name * np;
struct depend * dp;
{
register struct depend * rp;
register struct depend * rrp;
if ((rp = (struct depend *)malloc(sizeof (struct depend)))
== (struct depend *)0)
fatal("No memory for dependant");
rp->d_next = (struct depend *)0;
rp->d_name = np;
if (dp == (struct depend *)0)
return rp;
for (rrp = dp; rrp->d_next; rrp = rrp->d_next)
;
rrp->d_next = rp;
return dp;
}
/*
* Add a command to the end of the supplied list of commands.
* Return the new head pointer for that list.
*/
struct cmd *
newcmd(str, cp)
char * str;
struct cmd * cp;
{
register struct cmd * rp;
register struct cmd * rrp;
register char * rcp;
if (rcp = rindex(str, '\n'))
*rcp = '\0'; /* Loose newline */
while (isspace(*str))
str++;
if (*str == '\0') /* If nothing left, the exit */
return 0;
if ((rp = (struct cmd *)malloc(sizeof (struct cmd)))
== (struct cmd *)0)
fatal("No memory for command");
rp->c_next = (struct cmd *)0;
if ((rcp = malloc((unsigned)(strlen(str)+1))) == (char *)0)
fatal("No memory for command");
strcpy(rcp, str);
rp->c_cmd = rcp;
if (cp == (struct cmd *)0)
return rp;
for (rrp = cp; rrp->c_next; rrp = rrp->c_next)
;
rrp->c_next = rp;
return cp;
}
/*
* Add a new 'line' of stuff to a target. This check to see
* if commands already exist for the target. If flag is set,
* the line is a double colon target.
*
* Kludges:
* i) If the new name begins with a '.', and there are no dependents,
* then the target must cease to be a target. This is for .SUFFIXES.
* ii) If the new name begins with a '.', with no dependents and has
* commands, then replace the current commands. This is for
* redefining commands for a default rule.
* Neither of these free the space used by dependents or commands,
* since they could be used by another target.
*/
void
newline(np, dp, cp, flag)
struct name * np;
struct depend * dp;
struct cmd * cp;
{
bool hascmds = FALSE; /* Target has commands */
register struct line * rp;
register struct line * rrp;
/* Handle the .SUFFIXES case */
if (! strcmp(np->n_name, ".SUFFIXES") && !dp && !cp)
{
for (rp = np->n_line; rp; rp = rrp)
{
rrp = rp->l_next;
free((char *)rp);
}
np->n_line = (struct line *)0;
np->n_flag &= ~N_TARG;
return;
}
/* This loop must happen since rrp is used later. */
for
(
rp = np->n_line, rrp = (struct line *)0;
rp;
rrp = rp, rp = rp->l_next
)
if (rp->l_cmd)
hascmds = TRUE;
if (hascmds && cp && !(np->n_flag & N_DOUBLE))
/* Handle the implicit rules redefinition case */
if (np->n_name[0] == '.' && dp == (struct depend *)0)
{
np->n_line->l_cmd = cp;
return;
}
else
error("Commands defined twice for target %s", np->n_name);
if (np->n_flag & N_TARG)
if (!(np->n_flag & N_DOUBLE) != !flag) /* like xor */
error("Inconsistent rules for target %s", np->n_name);
if ((rp = (struct line *)malloc(sizeof (struct line)))
== (struct line *)0)
fatal("No memory for line");
rp->l_next = (struct line *)0;
rp->l_dep = dp;
rp->l_cmd = cp;
if (rrp)
rrp->l_next = rp;
else
np->n_line = rp;
np->n_flag |= N_TARG;
if (flag)
np->n_flag |= N_DOUBLE;
}
/*
* Parse input from the makefile, and construct a tree structure
* of it.
*/
void
input(fd)
FILE * fd;
{
char * p; /* General */
char * q;
struct name * np;
struct depend * dp;
struct cmd * cp;
bool dbl;
if (getline(str1, fd)) /* Read the first line */
return;
for(;;)
{
#ifdef os9
if (*str1 == ' ') /* Rules without targets */
#else
if (*str1 == '\t') /* Rules without targets */
#endif
error("Rules not allowed here");
p = str1;
while (isspace(*p)) /* Find first target */
p++;
while (((q = index(p, '=')) != (char *)0) &&
(p != q) && (q[-1] == '\\')) /* Find value */
{
register char * a;
a = q - 1; /* Del \ chr; move rest back */
p = q;
while(*a++ = *q++)
;
}
if (q != (char *)0)
{
register char * a;
*q++ = '\0'; /* Separate name and val */
while (isspace(*q))
q++;
if (p = rindex(q, '\n'))
*p = '\0';
p = str1;
if ((a = gettok(&p)) == (char *)0)
error("No macro name");
setmacro(a, q, 2);
if (getline(str1, fd))
return;
continue;
}
expand(str1);
p = str1;
while (((q = index(p, ':')) != (char *)0) &&
(p != q) && (q[-1] == '\\')) /* Find dependents */
{
register char * a;
a = q - 1; /* Del \ chr; move rest back */
p = q;
while(*a++ = *q++)
;
}
if (q == (char *)0)
error("No targets provided");
*q++ = '\0'; /* Separate targets and dependents */
if (*q == ':') /* Double colon */
{
dbl = 1;
q++;
}
else
dbl = 0;
for (dp = (struct depend *)0; ((p = gettok(&q)) != (char *)0);)
/* get list of dep's */
{
np = newname(p); /* Intern name */
dp = newdep(np, dp); /* Add to dep list */
}
*((q = str1) + strlen(str1) + 1) = '\0';
/* Need two nulls for gettok (Remember separation) */
cp = (struct cmd *)0;
if (getline(str2, fd) == FALSE) /* Get commands */
{
#ifdef os9
while (*str2 == ' ')
#else
while (*str2 == '\t')
#endif
{
cp = newcmd(&str2[0], cp);
if (getline(str2, fd))
break;
}
}
while ((p = gettok(&q)) != (char *)0) /* Get list of targ's */
{
np = newname(p); /* Intern name */
newline(np, dp, cp, dbl);
if (!firstname && p[0] != '.')
firstname = np;
}
if (feof(fd)) /* EOF? */
return;
strcpy(str1, str2);
}
}

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/*
* Macro control for make
*
* $Header$
*/
#include "h.h"
struct macro * macrohead;
struct macro *
getmp(name)
char * name;
{
register struct macro * rp;
for (rp = macrohead; rp; rp = rp->m_next)
if (strcmp(name, rp->m_name) == 0)
return rp;
return (struct macro *)0;
}
char *
getmacro(name)
char * name;
{
struct macro * mp;
if (mp = getmp(name))
return mp->m_val;
else
return "";
}
struct macro *
setmacro(name, val, prio)
char * name;
char * val;
{
register struct macro * rp;
register char * cp;
/* Replace macro definition if it exists */
for (rp = macrohead; rp; rp = rp->m_next)
if (strcmp(name, rp->m_name) == 0)
{
if (prio < rp->m_prio)
return rp;
free(rp->m_val); /* Free space from old */
break;
}
if (!rp) /* If not defined, allocate space for new */
{
if ((rp = (struct macro *)malloc(sizeof (struct macro)))
== (struct macro *)0)
fatal("No memory for macro");
rp->m_next = macrohead;
macrohead = rp;
rp->m_flag = FALSE;
if ((cp = malloc((unsigned)(strlen(name)+1))) == (char *)0)
fatal("No memory for macro");
strcpy(cp, name);
rp->m_name = cp;
}
if ((cp = malloc((unsigned)(strlen(val)+1))) == (char *)0)
fatal("No memory for macro");
strcpy(cp, val); /* Copy in new value */
rp->m_val = cp;
rp->m_prio = prio;
return rp;
}
#define MBUFSIZ 128
/*
* Do the dirty work for expand
*/
void
doexp(to, from, len, buf)
char ** to;
char * from;
int * len;
char * buf;
{
register char * rp;
register char * p;
register char * q;
register struct macro * mp;
rp = from;
p = *to;
while (*rp)
{
if (*rp != '$')
{
*p++ = *rp++;
(*len)--;
}
else
{
q = buf;
if (*++rp == '{')
while (*++rp && *rp != '}') {
if (q < &buf[MBUFSIZ-1]) *q++ = *rp;
}
else if (*rp == '(')
while (*++rp && *rp != ')') {
if (q < &buf[MBUFSIZ-1]) *q++ = *rp;
}
else if (!*rp)
{
*p++ = '$';
break;
}
else
*q++ = *rp;
*q = '\0';
if (*rp)
rp++;
if (!(mp = getmp(buf)))
mp = setmacro(buf, "", 2);
if (mp->m_flag)
fatal("Infinitely recursive macro %s", mp->m_name);
mp->m_flag = TRUE;
*to = p;
doexp(to, mp->m_val, len, buf);
p = *to;
mp->m_flag = FALSE;
}
if (*len <= 0)
error("Expanded line too line");
}
*p = '\0';
*to = p;
}
/*
* Expand any macros in str.
*/
void
expand(str)
char * str;
{
char *a;
static char b[MBUFSIZ]; /* temp storage for macroname */
char * p = str;
int len = LZ-1;
a = malloc((unsigned)(strlen(str)+1));
if (!a) fatal("No memory for expand");
strcpy(a, str);
doexp(&p, a, &len, b);
free(a);
}

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/*
* make [-f makefile] [-ins] [target(s) ...]
*
* (Better than EON mk but not quite as good as UNIX make)
*
* -f makefile name
* -i ignore exit status
* -n Pretend to make
* -p Print all macros & targets
* -q Question up-to-dateness of target. Return exit status 1 if not
* -r Don't not use inbuilt rules
* -s Make silently
* -t Touch files instead of making them
* -m Change memory requirements (EON only)
* -k For the time being: accept but ignore
*
* $Header$
*/
#include <stdio.h>
#include "h.h"
#ifdef unix
#include <errno.h>
#endif
#ifdef eon
#include <sys/err.h>
#endif
#ifdef os9
#include <errno.h>
#endif
#ifdef eon
#define MEMSPACE (16384)
#endif
char * myname;
char * makefile; /* The make file */
#ifdef eon
unsigned memspace = MEMSPACE;
#endif
FILE * ifd; /* Input file desciptor */
bool domake = TRUE; /* Go through the motions option */
bool ignore = FALSE; /* Ignore exit status option */
bool silent = FALSE; /* Silent option */
bool print = FALSE; /* Print debuging information */
bool rules = TRUE; /* Use inbuilt rules */
bool dotouch = FALSE;/* Touch files instead of making */
bool quest = FALSE; /* Question up-to-dateness of file */
void
main(argc, argv)
int argc;
char ** argv;
{
register char * p; /* For argument processing */
int estat = 0; /* For question */
register struct name * np;
int nargc = 0;
char **nargv;
int fflag = 0;
myname = (argc-- < 1) ? "make" : *argv++;
nargv = argv;
while (argc > 0)
{
argc--; /* One less to process */
p = *argv++; /* Now processing this one */
if (*p == '-') while (*++p != '\0')
{
switch(*p)
{
case 'f': /* Alternate file name */
fflag = 1;
break;
#ifdef eon
case 'm': /* Change space requirements */
if (*++p == '\0')
{
if (argc-- <= 0)
usage();
p = *argv++;
}
memspace = atoi(p);
goto end_of_args;
#endif
case 'n': /* Pretend mode */
domake = FALSE;
break;
case 'i': /* Ignore fault mode */
ignore = TRUE;
break;
case 's': /* Silent about commands */
silent = TRUE;
break;
case 'p':
print = TRUE;
break;
case 'r':
rules = FALSE;
break;
case 't':
dotouch = TRUE;
break;
case 'q':
quest = TRUE;
break;
case 'k':
break;
default: /* Wrong option */
usage();
}
}
else {
if (fflag) {
if (argc <= 0) usage();
makefile = p;
fflag = 0;
}
else {
nargc++;
*nargv++ = p;
}
}
end_of_args:;
}
argv = nargv - nargc;
argc = nargc;
#ifdef eon
if (initalloc(memspace) == 0xffff) /* Must get memory for alloc */
fatal("Cannot initalloc memory");
#endif
if (makefile && strcmp(makefile, "-") == 0) /* Can use stdin as makefile */
ifd = stdin;
else
if (!makefile) /* If no file, then use default */
{
if ((ifd = fopen(DEFN1, "r")) == (FILE *)0)
#ifdef eon
if (errno != ER_NOTF)
fatal("Can't open %s; error %02x", DEFN1, errno);
#endif
#ifdef unix
if (errno != ENOENT)
fatal("Can't open %s; error %02x", DEFN1, errno);
#endif
#ifndef os9
if ((ifd == (FILE *)0)
&& ((ifd = fopen(DEFN2, "r")) == (FILE *)0))
fatal("Can't open %s", DEFN2);
#else
fatal("Can't open %s", DEFN1);
#endif
}
else
if ((ifd = fopen(makefile, "r")) == (FILE *)0)
fatal("Can't open %s", makefile);
makerules();
setmacro("$", "$", 4);
while (argc && (p = index(*argv, '=')))
{
char c;
c = *p;
*p = '\0';
setmacro(*argv, p+1, 3);
*p = c;
argv++;
argc--;
}
input(ifd); /* Input all the gunga */
fclose(ifd); /* Finished with makefile */
lineno = 0; /* Any calls to error now print no line number */
if (print)
prt(); /* Print out structures */
np = newname(".SILENT");
if (np->n_flag & N_TARG)
silent = TRUE;
np = newname(".IGNORE");
if (np->n_flag & N_TARG)
ignore = TRUE;
precious();
if (!firstname)
fatal("No targets defined");
circh(); /* Check circles in target definitions */
if (!argc)
estat = make(firstname, 0);
else while (argc--)
{
if (!print && !silent && strcmp(*argv, "love") == 0)
printf("Not war!\n");
estat |= make(newname(*argv++), 0);
}
if (quest)
exit(estat);
else
exit(0);
}
usage()
{
fprintf(stderr, "Usage: %s [-f makefile] [-inpqrst] [macro=val ...] [target(s) ...]\n", myname);
exit(1);
}
/*VARARGS1*/
void
fatal(msg, a1, a2, a3, a4, a5, a6)
char *msg;
{
fprintf(stderr, "%s: ", myname);
fprintf(stderr, msg, a1, a2, a3, a4, a5, a6);
fputc('\n', stderr);
exit(1);
}
char *
index(s, c)
register char *s, c;
{
while (*s)
if (*s++ == c)
return --s;
return (char *)0;
}
char *
rindex(str, chr)
register char *str, chr;
{
register char *retptr = 0;
while (*str)
if (*str++ == chr)
retptr = &str[-1];
return retptr;
}

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/*
* Do the actual making for make
*
* $Header$
*/
#include <stdio.h>
#ifdef unix
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#endif
#ifdef eon
#include <sys/stat.h>
#include <sys/err.h>
#endif
#ifdef os9
#include <time.h>
#include <os9.h>
#include <modes.h>
#include <direct.h>
#include <errno.h>
#endif
#include "h.h"
/*
* Exec a shell that returns exit status correctly (/bin/esh).
* The standard EON shell returns the process number of the last
* async command, used by the debugger (ugg).
* [exec on eon is like a fork+exec on unix]
*/
int
dosh(string, shell)
char * string;
char * shell;
{
int number;
#ifdef unix
return system(string);
#endif
#ifdef eon
return ((number = execl(shell, shell,"-c", string, 0)) == -1) ?
-1: /* couldn't start the shell */
wait(number); /* return its exit status */
#endif
#ifdef os9
int status, pid;
strcat(string, "\n");
if ((number = os9fork(shell, strlen(string), string, 0, 0, 0)) == -1)
return -1; /* Couldn't start a shell */
do
{
if ((pid = wait(&status)) == -1)
return -1; /* child already died!?!? */
} while (pid != number);
return status;
#endif
}
/*
* Do commands to make a target
*/
void
docmds1(np, lp)
struct name * np;
struct line * lp;
{
bool ssilent;
bool signore;
int estat;
register char * q;
register char * p;
char * shell;
register struct cmd * cp;
if (*(shell = getmacro("SHELL")) == '\0')
#ifdef eon
shell = ":bin/esh";
#endif
#ifdef unix
shell = "/bin/sh";
#endif
#ifdef os9
shell = "shell";
#endif
for (cp = lp->l_cmd; cp; cp = cp->c_next)
{
strcpy(str1, cp->c_cmd);
expand(str1);
q = str1;
ssilent = silent;
signore = ignore;
while ((*q == '@') || (*q == '-'))
{
if (*q == '@') /* Specific silent */
ssilent = TRUE;
else /* Specific ignore */
signore = TRUE;
q++; /* Not part of the command */
}
if (!domake)
ssilent = 0;
if (!ssilent)
fputs(" ", stdout);
for (p=q; *p; p++)
{
if (*p == '\n' && p[1] != '\0')
{
*p = ' ';
if (!ssilent)
fputs("\\\n", stdout);
}
else if (!ssilent)
putchar(*p);
}
if (!ssilent) {
putchar('\n');
fflush(stdout);
}
if (domake)
{ /* Get the shell to execute it */
if ((estat = dosh(q, shell)) != 0)
{
if (estat == -1)
fatal("Couldn't execute %s", shell);
else
{
printf("%s: Error code %d", myname, estat);
if (signore)
fputs(" (Ignored)\n", stdout);
else
{
putchar('\n');
if (!(np->n_flag & N_PREC))
if (unlink(np->n_name) == 0)
printf("%s: '%s' removed.\n", myname, np->n_name);
exit(1);
}
}
fflush(stdout);
}
}
}
}
docmds(np)
struct name * np;
{
register struct line * lp;
for (lp = np->n_line; lp; lp = lp->l_next)
docmds1(np, lp);
}
#ifdef os9
/*
* Some stuffing around to get the modified time of a file
* in an os9 file system
*/
getmdate(fd, tbp)
struct sgtbuf * tbp;
{
struct registers regs;
static struct fildes fdbuf;
regs.rg_a = fd;
regs.rg_b = SS_FD;
regs.rg_x = &fdbuf;
regs.rg_y = sizeof (fdbuf);
if (_os9(I_GETSTT, &regs) == -1)
{
errno = regs.rg_b & 0xff;
return -1;
}
if (tbp)
{
_strass(tbp, fdbuf.fd_date, sizeof (fdbuf.fd_date));
tbp->t_second = 0; /* Files are only acurate to mins */
}
return 0;
}
/*
* Kludge routine to return an aproximation of how many
* seconds since 1980. Dates will be in order, but will not
* be lineer
*/
time_t
cnvtime(tbp)
struct sgtbuf *tbp;
{
long acc;
acc = tbp->t_year - 80; /* Baseyear is 1980 */
acc = acc * 12 + tbp->t_month;
acc = acc * 31 + tbp->t_day;
acc = acc * 24 + tbp->t_hour;
acc = acc * 60 + tbp->t_minute;
acc = acc * 60 + tbp->t_second;
return acc;
}
/*
* Get the current time in the internal format
*/
time(tp)
time_t * tp;
{
struct sgtbuf tbuf;
if (getime(&tbuf) < 0)
return -1;
if (tp)
*tp = cnvtime(&tbuf);
return 0;
}
#endif
/*
* Get the modification time of a file. If the first
* doesn't exist, it's modtime is set to 0.
*/
void
modtime(np)
struct name * np;
{
#ifdef unix
struct stat info;
if (stat(np->n_name, &info) < 0)
{
if (errno != ENOENT)
fatal("Can't open %s; error %d", np->n_name, errno);
np->n_time = 0L;
}
else
np->n_time = info.st_mtime;
#endif
#ifdef eon
struct stat info;
int fd;
if ((fd = open(np->n_name, 0)) < 0)
{
if (errno != ER_NOTF)
fatal("Can't open %s; error %02x", np->n_name, errno);
np->n_time = 0L;
}
else if (getstat(fd, &info) < 0)
fatal("Can't getstat %s; error %02x", np->n_name, errno);
else
np->n_time = info.st_mod;
close(fd);
#endif
#ifdef os9
struct sgtbuf info;
int fd;
if ((fd = open(np->n_name, 0)) < 0)
{
if (errno != E_PNNF)
fatal("Can't open %s; error %02x", np->n_name, errno);
np->n_time = 0L;
}
else if (getmdate(fd, &info) < 0)
fatal("Can't getstat %s; error %02x", np->n_name, errno);
else
np->n_time = cnvtime(&info);
close(fd);
#endif
}
/*
* Update the mod time of a file to now.
*/
void
touch(np)
struct name * np;
{
char c;
int fd;
if (!domake || !silent)
printf(" touch(%s)\n", np->n_name);
if (domake)
{
#ifdef unix
long a[2];
long time();
a[0] = a[1] = time((long *)0);
if (utime(np->n_name, &a[0]) < 0)
printf("%s: '%s' not touched - non-existant\n",
myname, np->n_name);
#endif
#ifdef eon
if ((fd = open(np->n_name, 0)) < 0)
printf("%s: '%s' not touched - non-existant\n",
myname, np->n_name);
else
{
uread(fd, &c, 1, 0);
uwrite(fd, &c, 1);
}
close(fd);
#endif
#ifdef os9
/*
* Strange that something almost as totally useless
* as this is easy to do in os9!
*/
if ((fd = open(np->n_name, S_IWRITE)) < 0)
printf("%s: '%s' not touched - non-existant\n",
myname, np->n_name);
close(fd);
#endif
}
}
/*
* Recursive routine to make a target.
*/
int
make(np, level)
struct name * np;
int level;
{
register struct depend * dp;
register struct line * lp;
register struct depend * qdp;
time_t dtime = 1;
bool didsomething = 0;
int dynamic = 0;
if (np->n_flag & N_DONE)
return 0;
if (!np->n_time)
modtime(np); /* Gets modtime of this file */
if (rules)
{
for (lp = np->n_line; lp; lp = lp->l_next)
if (lp->l_cmd)
break;
if (!lp) {
dyndep(np);
dynamic = 1;
}
}
if (!(np->n_flag & N_TARG) && np->n_time == 0L)
fatal("Don't know how to make %s", np->n_name);
for (qdp = (struct depend *)0, lp = np->n_line; lp; lp = lp->l_next)
{
for (dp = lp->l_dep; dp; dp = dp->d_next)
{
char *sv = 0;
if (dynamic) {
char *s = getmacro("<");
if (s) {
sv = malloc((unsigned)(strlen(s)+1));
if (!sv) {
fatal("no space for saved $<");
}
strcpy(sv, s);
}
}
make(dp->d_name, level+1);
if (dynamic && sv) {
setmacro("<", sv, 4);
free(sv);
}
if (np->n_time < dp->d_name->n_time)
qdp = newdep(dp->d_name, qdp);
dtime = max(dtime, dp->d_name->n_time);
}
if (!quest && (np->n_flag & N_DOUBLE) && (np->n_time < dtime))
{
make1(np, lp, qdp); /* free()'s qdp */
dtime = 1;
qdp = (struct depend *)0;
didsomething++;
}
}
np->n_flag |= N_DONE;
if (quest)
{
long t;
t = np->n_time;
time(&np->n_time);
return t < dtime;
}
else if (np->n_time < dtime && !(np->n_flag & N_DOUBLE))
{
make1(np, (struct line *)0, qdp); /* free()'s qdp */
time(&np->n_time);
}
else if (level == 0 && !didsomething)
printf("%s: '%s' is up to date\n", myname, np->n_name);
return 0;
}
make1(np, lp, qdp)
register struct depend * qdp;
struct line * lp;
struct name * np;
{
register struct depend * dp;
register char *p;
char *rindex();
if (dotouch)
touch(np);
else
{
strcpy(str1, "");
for (dp = qdp; dp; dp = qdp)
{
if (strlen(str1))
strcat(str1, " ");
strcat(str1, dp->d_name->n_name);
qdp = dp->d_next;
free((char *)dp);
}
setmacro("?", str1, 4);
setmacro("@", np->n_name, 4);
p = rindex(np->n_name, '.');
if (p) *p = 0;
setmacro("*", np->n_name, 4);
if (p) *p = '.';
if (lp) /* lp set if doing a :: rule */
docmds1(np, lp);
else
docmds(np);
}
}

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/*
* Read in makefile
*
* $Header$
*/
#include <stdio.h>
#include <ctype.h>
#include "h.h"
int lineno;
/*
* Syntax error handler. Print message, with line number, and exits.
*/
/*VARARGS1*/
void
error(msg, a1, a2, a3)
char * msg;
{
fprintf(stderr, "%s: ", myname);
fprintf(stderr, msg, a1, a2, a3);
if (lineno)
fprintf(stderr, " near line %d", lineno);
fputc('\n', stderr);
exit(1);
}
/*
* Read a line into the supplied string of length LZ. Remove
* comments, ignore blank lines. Deal with quoted (\) #, and
* quoted newlines. If EOF return TRUE.
*/
bool
getline(str, fd)
char * str;
FILE * fd;
{
register char * p;
char * q;
int pos = 0;
for (;;)
{
if (fgets(str+pos, LZ-pos, fd) == (char *)0)
return TRUE; /* EOF */
lineno++;
if ((p = index(str+pos, '\n')) == (char *)0)
error("Line too long");
if (p[-1] == '\\')
{
p[-1] = '\n';
pos = p - str;
continue;
}
p = str;
while (((q = index(p, '#')) != (char *)0) &&
(p != q) && (q[-1] == '\\'))
{
char *a;
a = q - 1; /* Del \ chr; move rest back */
p = q;
while (*a++ = *q++)
;
}
if (q != (char *)0)
{
q[0] = '\n';
q[1] = '\0';
}
p = str;
while (isspace(*p)) /* Checking for blank */
p++;
if (*p != '\0')
return FALSE;
pos = 0;
}
}
/*
* Get a word from the current line, surounded by white space.
* return a pointer to it. String returned has no white spaces
* in it.
*/
char *
gettok(ptr)
char **ptr;
{
register char * p;
while (isspace(**ptr)) /* Skip spaces */
(*ptr)++;
if (**ptr == '\0') /* Nothing after spaces */
return NULL;
p = *ptr; /* word starts here */
while ((**ptr != '\0') && (!isspace(**ptr)))
(*ptr)++; /* Find end of word */
*(*ptr)++ = '\0'; /* Terminate it */
return(p);
}

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/*
* Control of the implicit suffix rules
*
* $Header$
*/
#include "h.h"
/*
* Return a pointer to the suffix of a name
*/
char *
suffix(name)
char * name;
{
return rindex(name, '.');
}
/*
* 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)
struct name * np;
{
register char * p;
register char * q;
register char * suff; /* Old suffix */
register char * basename; /* Name without suffix */
struct name * op; /* New dependent */
struct name * sp; /* Suffix */
struct line * lp;
struct depend * dp;
char * newsuff;
p = str1;
q = np->n_name;
if (!(suff = suffix(q)))
return FALSE; /* No suffix */
while (q < suff)
*p++ = *q++;
*p = '\0';
basename = setmacro("*", str1, 4)->m_val;
if (!((sp = newname(".SUFFIXES"))->n_flag & N_TARG))
return FALSE;
for (lp = sp->n_line; lp; lp = lp->l_next)
for (dp = lp->l_dep; dp; dp = dp->d_next)
{
newsuff = dp->d_name->n_name;
if (strlen(suff)+strlen(newsuff)+1 >= LZ)
fatal("Suffix rule too long");
p = str1;
q = newsuff;
while (*p++ = *q++)
;
p--;
q = suff;
while (*p++ = *q++)
;
sp = newname(str1);
if (sp->n_flag & N_TARG)
{
p = str1;
q = basename;
if (strlen(basename) + strlen(newsuff)+1 >= LZ)
fatal("Implicit name too long");
while (*p++ = *q++)
;
p--;
q = newsuff;
while (*p++ = *q++)
;
op = newname(str1);
if (!op->n_time)
modtime(op);
if (op->n_time || (op->n_flag & N_TARG))
{
dp = newdep(op, (struct depend *)0);
newline(np, dp, sp->n_line->l_cmd, 0);
setmacro("<", op->n_name, 4);
return TRUE;
}
}
}
return FALSE;
}
/*
* Make the default rules
*/
void
makerules()
{
struct cmd * cp;
struct name * np;
struct depend * dp;
#ifdef eon
setmacro("BDSCC", "asm", 0);
/* setmacro("BDSCFLAGS", "", 0); */
cp = newcmd("$(BDSCC) $(BDSCFLAGS) -n $<", (struct cmd *)0);
np = newname(".c.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("CC", "c", 0);
setmacro("CFLAGS", "-O", 0);
cp = newcmd("$(CC) $(CFLAGS) -c $<", (struct cmd *)0);
np = newname(".c.obj");
newline(np, (struct depend *)0, cp, 0);
setmacro("M80", "asm -n", 0);
/* setmacro("M80FLAGS", "", 0); */
cp = newcmd("$(M80) $(M80FLAGS) $<", (struct cmd *)0);
np = newname(".mac.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("AS", "zas", 0);
/* setmacro("ASFLAGS", "", 0); */
cp = newcmd("$(ZAS) $(ASFLAGS) -o $@ $<", (struct cmd *)0);
np = newname(".as.obj");
newline(np, (struct depend *)0, cp, 0);
np = newname(".as");
dp = newdep(np, (struct depend *)0);
np = newname(".obj");
dp = newdep(np, dp);
np = newname(".c");
dp = newdep(np, dp);
np = newname(".o");
dp = newdep(np, dp);
np = newname(".mac");
dp = newdep(np, dp);
np = newname(".SUFFIXES");
newline(np, dp, (struct cmd *)0, 0);
#endif
/*
* Some of the UNIX implicit rules
*/
#ifdef unix
setmacro("CC", "cc", 0);
setmacro("CFLAGS", "-O", 0);
#ifdef MINIX
cp = newcmd("$(CC) $(CFLAGS) -S $<", (struct cmd *)0);
np = newname(".c.s");
#else
cp = newcmd("$(CC) $(CFLAGS) -c $<", (struct cmd *)0);
np = newname(".c.o");
#endif MINIX
newline(np, (struct depend *)0, cp, 0);
setmacro("AS", "as", 0);
cp = newcmd("$(AS) -o $@ $<", (struct cmd *)0);
np = newname(".s.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("YACC", "yacc", 0);
/* setmacro("YFLAGS", "", 0); */
cp = newcmd("$(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) $<", (struct cmd *)0);
cp = newcmd("$(CC) $(CFLAGS) -c y.tab.c", cp);
cp = newcmd("rm y.tab.c", cp);
cp = newcmd("mv y.tab.o $@", cp);
np = newname(".y.o");
newline(np, (struct depend *)0, cp, 0);
setmacro("LEX", "lex", 0);
/* setmacro("LFLAGS", "", 0); */
cp = newcmd("$(LEX) $(LFLAGS) $<", (struct cmd *)0);
cp = newcmd("mv lex.yy.c $@", cp);
np = newname(".l.c");
newline(np, (struct depend *)0, cp, 0);
cp = newcmd("$(LEX) $(LFLAGS) $<", (struct cmd *)0);
cp = newcmd("$(CC) $(CFLAGS) -c lex.yy.c", cp);
cp = newcmd("rm lex.yy.c", cp);
cp = newcmd("mv lex.yy.o $@", cp);
np = newname(".l.o");
newline(np, (struct depend *)0, cp, 0);
np = newname(".s");
dp = newdep(np, (struct depend *)0);
np = newname(".o");
dp = newdep(np, dp);
np = newname(".c");
dp = newdep(np, dp);
np = newname(".y");
dp = newdep(np, dp);
np = newname(".l");
dp = newdep(np, dp);
np = newname(".SUFFIXES");
newline(np, dp, (struct cmd *)0, 0);
#endif
#ifdef os9
/*
* Fairlight use an enhanced version of the C sub-system.
* They have a specialised macro pre-processor.
*/
setmacro("CC", "cc", 0);
setmacro("CFLAGS", "-z", 0);
cp = newcmd("$(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
}