pjs/config/mkdepend/main.c

751 строка
15 KiB
C

/* $Xorg: main.c,v 1.5 2001/02/09 02:03:16 xorgcvs Exp $ */
/*
Copyright (c) 1993, 1994, 1998 The Open Group
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
*/
#include "def.h"
#ifdef hpux
#define sigvec sigvector
#endif /* hpux */
#ifdef X_POSIX_C_SOURCE
#define _POSIX_C_SOURCE X_POSIX_C_SOURCE
#include <signal.h>
#undef _POSIX_C_SOURCE
#else
#if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE)
#include <signal.h>
#else
#define _POSIX_SOURCE
#include <signal.h>
#undef _POSIX_SOURCE
#endif
#endif
#if NeedVarargsPrototypes
#include <stdarg.h>
#endif
#ifdef XP_OS2
#include <io.h>
#endif
#ifdef DEBUG
int _debugmask;
#endif
char *ProgramName;
char *directives[] = {
"if",
"ifdef",
"ifndef",
"else",
"endif",
"define",
"undef",
"include",
"line",
"pragma",
"error",
"ident",
"sccs",
"elif",
"eject",
"warning",
NULL
};
#define MAKEDEPEND
#include "imakemdep.h" /* from config sources */
#undef MAKEDEPEND
struct inclist inclist[ MAXFILES ],
*inclistp = inclist,
maininclist;
char *filelist[ MAXFILES ];
char *includedirs[ MAXDIRS + 1 ];
char *notdotdot[ MAXDIRS ];
char *objprefix = "";
char *objsuffix = OBJSUFFIX;
char *startat = "# DO NOT DELETE";
int width = 78;
boolean append = FALSE;
boolean printed = FALSE;
boolean verbose = FALSE;
boolean show_where_not = FALSE;
boolean warn_multiple = FALSE; /* Warn on multiple includes of same file */
void freefile();
void redirect();
#if !NeedVarargsPrototypes
void fatalerr();
void warning();
void warning1();
#endif
static
#ifdef SIGNALRETURNSINT
int
#else
void
#endif
catch (sig)
int sig;
{
fflush (stdout);
fatalerr ("got signal %d\n", sig);
}
#if defined(USG) || (defined(i386) && defined(SYSV)) || defined(WIN32) || defined(XP_OS2)
#define USGISH
#endif
#ifndef USGISH
#ifndef _POSIX_SOURCE
#define sigaction sigvec
#define sa_handler sv_handler
#define sa_mask sv_mask
#define sa_flags sv_flags
#endif
struct sigaction sig_act;
#endif /* USGISH */
main(argc, argv)
int argc;
char **argv;
{
register char **fp = filelist;
register char **incp = includedirs;
register char *p;
register struct inclist *ip;
char *makefile = NULL;
struct filepointer *filecontent;
struct symtab *psymp = predefs;
char *endmarker = NULL;
char *defincdir = NULL;
ProgramName = argv[0];
while (psymp->s_name)
{
define2(psymp->s_name, psymp->s_value, &maininclist);
psymp++;
}
if (argc == 2 && argv[1][0] == '@') {
struct stat ast;
int afd;
char *args;
char **nargv;
int nargc;
char quotechar = '\0';
nargc = 1;
if ((afd = open(argv[1]+1, O_RDONLY)) < 0)
fatalerr("cannot open \"%s\"\n", argv[1]+1);
fstat(afd, &ast);
args = (char *)malloc(ast.st_size + 1);
if ((ast.st_size = read(afd, args, ast.st_size)) < 0)
fatalerr("failed to read %s\n", argv[1]+1);
args[ast.st_size] = '\0';
close(afd);
for (p = args; *p; p++) {
if (quotechar) {
if (quotechar == '\\' ||
(*p == quotechar && p[-1] != '\\'))
quotechar = '\0';
continue;
}
switch (*p) {
case '\\':
case '"':
case '\'':
quotechar = *p;
break;
case ' ':
case '\n':
*p = '\0';
if (p > args && p[-1])
nargc++;
break;
}
}
if (p[-1])
nargc++;
nargv = (char **)malloc(nargc * sizeof(char *));
nargv[0] = argv[0];
argc = 1;
for (p = args; argc < nargc; p += strlen(p) + 1)
if (*p) nargv[argc++] = p;
argv = nargv;
}
for(argc--, argv++; argc; argc--, argv++) {
/* if looking for endmarker then check before parsing */
if (endmarker && strcmp (endmarker, *argv) == 0) {
endmarker = NULL;
continue;
}
if (**argv != '-') {
/* treat +thing as an option for C++ */
if (endmarker && **argv == '+')
continue;
*fp++ = argv[0];
continue;
}
switch(argv[0][1]) {
case '-':
endmarker = &argv[0][2];
if (endmarker[0] == '\0') endmarker = "--";
break;
case 'D':
if (argv[0][2] == '\0') {
argv++;
argc--;
}
for (p=argv[0] + 2; *p ; p++)
if (*p == '=') {
*p = ' ';
break;
}
define(argv[0] + 2, &maininclist);
break;
case 'I':
if (incp >= includedirs + MAXDIRS)
fatalerr("Too many -I flags.\n");
*incp++ = argv[0]+2;
if (**(incp-1) == '\0') {
*(incp-1) = *(++argv);
argc--;
}
break;
case 'Y':
defincdir = argv[0]+2;
break;
/* do not use if endmarker processing */
case 'a':
if (endmarker) break;
append = TRUE;
break;
case 'w':
if (endmarker) break;
if (argv[0][2] == '\0') {
argv++;
argc--;
width = atoi(argv[0]);
} else
width = atoi(argv[0]+2);
break;
case 'o':
if (endmarker) break;
if (argv[0][2] == '\0') {
argv++;
argc--;
objsuffix = argv[0];
} else
objsuffix = argv[0]+2;
break;
case 'p':
if (endmarker) break;
if (argv[0][2] == '\0') {
argv++;
argc--;
objprefix = argv[0];
} else
objprefix = argv[0]+2;
break;
case 'v':
if (endmarker) break;
verbose = TRUE;
#ifdef DEBUG
if (argv[0][2])
_debugmask = atoi(argv[0]+2);
#endif
break;
case 's':
if (endmarker) break;
startat = argv[0]+2;
if (*startat == '\0') {
startat = *(++argv);
argc--;
}
if (*startat != '#')
fatalerr("-s flag's value should start %s\n",
"with '#'.");
break;
case 'f':
if (endmarker) break;
makefile = argv[0]+2;
if (*makefile == '\0') {
makefile = *(++argv);
argc--;
}
break;
case 'm':
warn_multiple = TRUE;
break;
/* Ignore -O, -g so we can just pass ${CFLAGS} to
makedepend
*/
case 'O':
case 'g':
break;
default:
if (endmarker) break;
/* fatalerr("unknown opt = %s\n", argv[0]); */
warning("ignoring option %s\n", argv[0]);
}
}
if (!defincdir) {
#ifdef PREINCDIR
if (incp >= includedirs + MAXDIRS)
fatalerr("Too many -I flags.\n");
*incp++ = PREINCDIR;
#endif
if (incp >= includedirs + MAXDIRS)
fatalerr("Too many -I flags.\n");
*incp++ = INCLUDEDIR;
#ifdef POSTINCDIR
if (incp >= includedirs + MAXDIRS)
fatalerr("Too many -I flags.\n");
*incp++ = POSTINCDIR;
#endif
} else if (*defincdir) {
if (incp >= includedirs + MAXDIRS)
fatalerr("Too many -I flags.\n");
*incp++ = defincdir;
}
redirect(startat, makefile);
/*
* catch signals.
*/
#ifdef USGISH
/* should really reset SIGINT to SIG_IGN if it was. */
#ifdef SIGHUP
signal (SIGHUP, catch);
#endif
signal (SIGINT, catch);
#ifdef SIGQUIT
signal (SIGQUIT, catch);
#endif
signal (SIGILL, catch);
#ifdef SIGBUS
signal (SIGBUS, catch);
#endif
signal (SIGSEGV, catch);
#ifdef SIGSYS
signal (SIGSYS, catch);
#endif
#else
sig_act.sa_handler = catch;
#ifdef _POSIX_SOURCE
sigemptyset(&sig_act.sa_mask);
sigaddset(&sig_act.sa_mask, SIGINT);
sigaddset(&sig_act.sa_mask, SIGQUIT);
#ifdef SIGBUS
sigaddset(&sig_act.sa_mask, SIGBUS);
#endif
sigaddset(&sig_act.sa_mask, SIGILL);
sigaddset(&sig_act.sa_mask, SIGSEGV);
sigaddset(&sig_act.sa_mask, SIGHUP);
sigaddset(&sig_act.sa_mask, SIGPIPE);
#ifdef SIGSYS
sigaddset(&sig_act.sa_mask, SIGSYS);
#endif
#else
sig_act.sa_mask = ((1<<(SIGINT -1))
|(1<<(SIGQUIT-1))
#ifdef SIGBUS
|(1<<(SIGBUS-1))
#endif
|(1<<(SIGILL-1))
|(1<<(SIGSEGV-1))
|(1<<(SIGHUP-1))
|(1<<(SIGPIPE-1))
#ifdef SIGSYS
|(1<<(SIGSYS-1))
#endif
);
#endif /* _POSIX_SOURCE */
sig_act.sa_flags = 0;
sigaction(SIGHUP, &sig_act, (struct sigaction *)0);
sigaction(SIGINT, &sig_act, (struct sigaction *)0);
sigaction(SIGQUIT, &sig_act, (struct sigaction *)0);
sigaction(SIGILL, &sig_act, (struct sigaction *)0);
#ifdef SIGBUS
sigaction(SIGBUS, &sig_act, (struct sigaction *)0);
#endif
sigaction(SIGSEGV, &sig_act, (struct sigaction *)0);
#ifdef SIGSYS
sigaction(SIGSYS, &sig_act, (struct sigaction *)0);
#endif
#endif /* USGISH */
/*
* now peruse through the list of files.
*/
for(fp=filelist; *fp; fp++) {
filecontent = getfile(*fp);
ip = newinclude(*fp, (char *)NULL);
find_includes(filecontent, ip, ip, 0, FALSE);
freefile(filecontent);
recursive_pr_include(ip, ip->i_file, base_name(*fp));
inc_clean();
}
if (printed)
printf("\n");
exit(0);
}
struct filepointer *getfile(file)
char *file;
{
register int fd;
struct filepointer *content;
struct stat st;
content = (struct filepointer *)malloc(sizeof(struct filepointer));
if ((fd = open(file, O_RDONLY)) < 0) {
warning("cannot open \"%s\"\n", file);
content->f_p = content->f_base = content->f_end = (char *)malloc(1);
*content->f_p = '\0';
return(content);
}
fstat(fd, &st);
content->f_base = (char *)malloc(st.st_size+1);
if (content->f_base == NULL)
fatalerr("cannot allocate mem\n");
if ((st.st_size = read(fd, content->f_base, st.st_size)) < 0)
fatalerr("failed to read %s\n", file);
close(fd);
content->f_len = st.st_size+1;
content->f_p = content->f_base;
content->f_end = content->f_base + st.st_size;
*content->f_end = '\0';
content->f_line = 0;
return(content);
}
void
freefile(fp)
struct filepointer *fp;
{
free(fp->f_base);
free(fp);
}
char *copy(str)
register char *str;
{
register char *p = (char *)malloc(strlen(str) + 1);
strcpy(p, str);
return(p);
}
match(str, list)
register char *str, **list;
{
register int i;
for (i=0; *list; i++, list++)
if (strcmp(str, *list) == 0)
return(i);
return(-1);
}
/*
* Get the next line. We only return lines beginning with '#' since that
* is all this program is ever interested in.
*/
char *getline(filep)
register struct filepointer *filep;
{
register char *p, /* walking pointer */
*eof, /* end of file pointer */
*bol; /* beginning of line pointer */
register int lineno; /* line number */
p = filep->f_p;
eof = filep->f_end;
if (p >= eof)
return((char *)NULL);
lineno = filep->f_line;
for(bol = p--; ++p < eof; ) {
if (*p == '/' && *(p+1) == '*') { /* consume comments */
*p++ = ' ', *p++ = ' ';
while (*p) {
if (*p == '*' && *(p+1) == '/') {
*p++ = ' ', *p = ' ';
break;
}
else if (*p == '\n')
lineno++;
*p++ = ' ';
}
continue;
}
else if (*p == '/' && *(p+1) == '/') { /* consume comments */
*p++ = ' ', *p++ = ' ';
while (*p)
{
/* Comment continues on next line. */
if (*p == '\\' && *(p+1) == '\n')
{
*(p++) = ' ';
*(p++) = ' ';
lineno++;
}
else
if (*p == '\n')
{
/*
* Decrement so that the next iteration
* of the outter "for loop" will handle
* the case of "*p == '\n'".
*/
--p;
break;
}
else
{
*p++ = ' ';
}
}
continue;
}
#if defined(WIN32) || defined(XP_OS2)
else if (*p == '/' && *(p+1) == '/') { /* consume comments */
*p++ = ' ', *p++ = ' ';
while (*p && *p != '\n')
*p++ = ' ';
lineno++;
continue;
}
#endif
else if (*p == '\\') {
if (*(p+1) == '\n') {
*p = ' ';
*(p+1) = ' ';
lineno++;
}
}
else if (*p == '\n') {
lineno++;
if (*bol == '#') {
register char *cp;
*p++ = '\0';
/* punt lines with just # (yacc generated) */
for (cp = bol+1;
*cp && (*cp == ' ' || *cp == '\t'); cp++);
if (*cp) goto done;
}
bol = p+1;
}
}
if (*bol != '#')
bol = NULL;
done:
filep->f_p = p;
filep->f_line = lineno;
return(bol);
}
/*
* Strip the file name down to what we want to see in the Makefile.
* It will have objprefix and objsuffix around it.
*/
char *base_name(file)
register char *file;
{
register char *p;
file = copy(file);
for(p=file+strlen(file); p>file && *p != '.'; p--) ;
if (*p == '.')
*p = '\0';
return(file);
}
#if defined(USG) && !defined(CRAY) && !defined(SVR4)
int rename (from, to)
char *from, *to;
{
(void) unlink (to);
if (link (from, to) == 0) {
unlink (from);
return 0;
} else {
return -1;
}
}
#endif /* USGISH */
void
redirect(line, makefile)
char *line,
*makefile;
{
struct stat st;
FILE *fdin, *fdout;
char backup[ BUFSIZ ],
buf[ BUFSIZ ];
boolean found = FALSE;
int len;
/*
* if makefile is "-" then let it pour onto stdout.
*/
if (makefile && *makefile == '-' && *(makefile+1) == '\0') {
puts(line);
return;
}
/*
* use a default makefile is not specified.
*/
if (!makefile) {
if (stat("Makefile", &st) == 0)
makefile = "Makefile";
else if (stat("makefile", &st) == 0)
makefile = "makefile";
else
fatalerr("[mM]akefile is not present\n");
}
else
stat(makefile, &st);
if ((fdin = fopen(makefile, "r")) == NULL)
fatalerr("cannot open \"%s\"\n", makefile);
sprintf(backup, "%s.bak", makefile);
unlink(backup);
#if defined(WIN32) || defined(XP_OS2)
fclose(fdin);
#endif
if (rename(makefile, backup) < 0)
fatalerr("cannot rename %s to %s\n", makefile, backup);
#if defined(WIN32) || defined(XP_OS2)
if ((fdin = fopen(backup, "r")) == NULL)
fatalerr("cannot open \"%s\"\n", backup);
#endif
if ((fdout = freopen(makefile, "w", stdout)) == NULL)
fatalerr("cannot open \"%s\"\n", backup);
len = strlen(line);
while (!found && fgets(buf, BUFSIZ, fdin)) {
if (*buf == '#' && strncmp(line, buf, len) == 0)
found = TRUE;
fputs(buf, fdout);
}
if (!found) {
if (verbose)
warning("Adding new delimiting line \"%s\" and dependencies...\n",
line);
puts(line); /* same as fputs(fdout); but with newline */
} else if (append) {
while (fgets(buf, BUFSIZ, fdin)) {
fputs(buf, fdout);
}
}
fflush(fdout);
#if defined(USGISH) || defined(_SEQUENT_)
chmod(makefile, st.st_mode);
#else
fchmod(fileno(fdout), st.st_mode);
#endif /* USGISH */
}
void
#if NeedVarargsPrototypes
fatalerr(char *msg, ...)
#else
/*VARARGS*/
fatalerr(msg,x1,x2,x3,x4,x5,x6,x7,x8,x9)
char *msg;
#endif
{
#if NeedVarargsPrototypes
va_list args;
#endif
fprintf(stderr, "%s: error: ", ProgramName);
#if NeedVarargsPrototypes
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
#else
fprintf(stderr, msg,x1,x2,x3,x4,x5,x6,x7,x8,x9);
#endif
exit (1);
}
void
#if NeedVarargsPrototypes
warning(char *msg, ...)
#else
/*VARARGS0*/
warning(msg,x1,x2,x3,x4,x5,x6,x7,x8,x9)
char *msg;
#endif
{
#if NeedVarargsPrototypes
va_list args;
#endif
fprintf(stderr, "%s: warning: ", ProgramName);
#if NeedVarargsPrototypes
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
#else
fprintf(stderr, msg,x1,x2,x3,x4,x5,x6,x7,x8,x9);
#endif
}
void
#if NeedVarargsPrototypes
warning1(char *msg, ...)
#else
/*VARARGS0*/
warning1(msg,x1,x2,x3,x4,x5,x6,x7,x8,x9)
char *msg;
#endif
{
#if NeedVarargsPrototypes
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
#else
fprintf(stderr, msg,x1,x2,x3,x4,x5,x6,x7,x8,x9);
#endif
}