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Make good on my promise to finally clean up the config clobbering.

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If you invoke config with the `-n' flag or have NO_CONFIG_CLOBBER in
your environment, config will behave the same way it used to.  This is
now _documented_ as well.  Rip out all the CONFIG_DONT_CLOBBER cruft;
some of it wasn't even correct anyway.
This commit is contained in:
Jordan K. Hubbard 1995-02-22 15:37:32 +00:00
parent d9dc2f74ef
commit b5909509ee
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=6631
3 changed files with 34 additions and 17 deletions
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3
usr.sbin/config/Makefile
View file

@ -2,9 +2,6 @@
PROG= config
CFLAGS+=-I. -I${.CURDIR}
.if defined(CONFIG_DONT_CLOBBER)
CFLAGS+= -DCONFIG_DONT_CLOBBER
.endif
SRCS= config.c main.c lang.c mkioconf.c mkmakefile.c mkglue.c mkheaders.c \
mkswapconf.c
MAN8= config.8

20
usr.sbin/config/config.8
View file

@ -39,7 +39,7 @@
.Nd build system configuration files
.Sh SYNOPSIS
.Nm config
.Op Fl gp
.Op Fl gpn
.Ar SYSTEM_NAME
.Sh DESCRIPTION
.Pp
@ -70,7 +70,7 @@ that give alternate files for a specific machine.
.Sx FILES
section below)
.Pp
Available option and operand:
Available options and operands:
.Pp
.Bl -tag -width SYSTEM_NAME
.It Fl g
@ -88,6 +88,12 @@ will configure a system for profiling; for example,
.Xr kgmon 8
and
.Xr gprof 1 .
.It Fl n
If the
.Fl n
flag is specified,
.Nm config
will not remove the old compile directory (see below).
.It Ar SYSTEM_NAME
specifies the name of the system configuration file
containing device specifications, configuration options
@ -100,9 +106,15 @@ should be run from the
subdirectory of the system source (usually
.Pa /sys/ARCH/conf ) .
.Nm Config
assumes the directory
will create the directory
.Pa ../../compile/SYSTEM_NAME
exists and places all output files there.
as necessary and place all output files there.
If the directory already exists, it will be removed
first unless the
.Pa -n
flag was specified or the environment variable
.Nm NO_CONFIG_CLOBBER
is set.
The output of
.Nm config
consists of a number of files; for the

28
usr.sbin/config/main.c
View file

@ -49,7 +49,16 @@ static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
#include "y.tab.h"
#include "config.h"
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
static char *PREFIX;
static int no_config_clobber = FALSE;
/*
* Config builds a set of files for building a UNIX
@ -66,7 +75,7 @@ main(argc, argv)
int ch;
char *p;
while ((ch = getopt(argc, argv, "gp")) != EOF)
while ((ch = getopt(argc, argv, "gpn")) != EOF)
switch (ch) {
case 'g':
debugging++;
@ -74,6 +83,9 @@ main(argc, argv)
case 'p':
profiling++;
break;
case 'n':
no_config_clobber = TRUE;
break;
case '?':
default:
goto usage;
@ -82,7 +94,7 @@ main(argc, argv)
argv += optind;
if (argc != 1) {
usage: fputs("usage: config [-gp] sysname\n", stderr);
usage: fputs("usage: config [-gpn] sysname\n", stderr);
exit(1);
}
@ -90,12 +102,11 @@ usage: fputs("usage: config [-gp] sysname\n", stderr);
perror(PREFIX);
exit(2);
}
#ifdef CONFIG_DONT_CLOBBER
if (stat(p = path((char *)NULL), &buf)) {
#else /* CONFIG_DONT_CLOBBER */
if (getenv("NO_CONFIG_CLOBBER"))
no_config_clobber = TRUE;
p = path((char *)NULL);
if (stat(p, &buf)) {
#endif /* CONFIG_DONT_CLOBBER */
if (mkdir(p, 0777)) {
perror(p);
exit(2);
@ -104,9 +115,8 @@ usage: fputs("usage: config [-gp] sysname\n", stderr);
else if ((buf.st_mode & S_IFMT) != S_IFDIR) {
fprintf(stderr, "config: %s isn't a directory.\n", p);
exit(2);
#ifndef CONFIG_DONT_CLOBBER
}
else {
else if (!no_config_clobber) {
char tmp[strlen(p) + 8];
fprintf(stderr, "Removing old directory %s: ", p);
@ -122,9 +132,7 @@ usage: fputs("usage: config [-gp] sysname\n", stderr);
perror(p);
exit(2);
}
#endif /* CONFIG_DONT_CLOBBER */
}
loadaddress = -1;
dtab = NULL;
confp = &conf_list;