Rip the guts out of the dynamically generated sysconf.c, and live with a simple

static version.  This will need further work later on, but should do the job for
the time being,

libc/unistd/.cvsignore

@@ -1,2 +0,0 @@
-sysconf_*.c
-gen_sysconf

libc/unistd/Makefile

@@ -1,7 +1,6 @@
 # Makefile for uClibc
 #
-# Copyright (C) 2000 by Lineo, inc.
-# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org>
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU Library General Public License as published by the Free
@@ -16,17 +15,13 @@
 # You should have received a copy of the GNU Library General Public License
 # along with this program; if not, write to the Free Software Foundation, Inc.,
 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-#
-# Derived in part from the Linux-8086 C library, the GNU C Library, and several
-# other sundry sources.  Files within this library are copyright by their
-# respective copyright holders.
 
 TOPDIR=../../
 include $(TOPDIR)Rules.mak
 DIRS:=
 
 CSRC=execl.c execlp.c execv.c execvep.c execvp.c execle.c \
-	sleep.c usleep.c getpass.c sysconf_src.c getlogin.c \
+	sleep.c usleep.c getpass.c sysconf.c getlogin.c \
 	fpathconf.c confstr.c pathconf.c swab.c usershell.c \
 	getsubopt.c
 ifeq ($(strip $(UCLIBC_HAS_MMU)),y)
@@ -38,13 +33,6 @@ else
 	CSRC += getopt-susv3.c
 endif
 
-# TESTING -- comment this out if it breaks for you
-ifeq ($(TARGET_ARCH), $(HOST_ARCH))
-	SYSCONF = sysconf_native
-else
-	SYSCONF = sysconf_$(TARGET_ARCH).c
-endif
-
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 OBJS=$(COBJS)
 
@@ -55,47 +43,6 @@ $(LIBC): ar-target subdirs
 ar-target: $(OBJS)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
 
-# We are cross-compiling so use the generic sysconf.c.
-sysconf_$(TARGET_ARCH).c: sysconf.c
-	@echo warning: sysconf_$(HOST_ARCH).c is older then sysconf.c so using generic sysconf.c
-	@echo To build sysconf_$(HOST_ARCH).c run gen_sysconf \> sysconf_$(HOST_ARCH).c on
-	@echo your target platform, place in the unistd directory, and rebuild
-	cp -f sysconf.c sysconf_$(TARGET_ARCH).c
-
-# We are compiling for the native platform, so build an optimized sysconf.c.
-getpagesize_tester.o:
-	$(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH \
-	    -c ../sysdeps/linux/common/getpagesize.c -o getpagesize_tester.o
-
-sysconf_tester.o: sysconf.c
-	$(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c sysconf.c \
-	    -o sysconf_tester.o
-
-gen_sysconf_tester.o: sysconf_tester.o getpagesize_tester.o
-	@ld -r -o gen_sysconf_tester.o sysconf_tester.o getpagesize_tester.o
-	@if nm -s gen_sysconf_tester.o | grep -v "U errno" | grep " U "; then \
-		set -e -x; \
-		echo warning: missing symbols in gen_sysconf_tester.o so using generic sysconf.c ;\
-		cp -f sysconf.c sysconf_src.c ;\
-	else \
-		set -e -x; \
-		if ../extra/gcc-uClibc/gcc-uClibc-$(HOST_ARCH) -static \
-			-D_UCLIBC_GENERATE_SYSCONF_MAIN sysconf.c sysconf_tester.o \
-			-o gen_sysconf && ./gen_sysconf > sysconf_$(HOST_ARCH).c ;\
-		then \
-			echo successfully built sysconf_$(HOST_ARCH).c ;\
-		else \
-			echo warning: build of gen_sysconf failed so using generic sysconf.c ;\
-			cp -f sysconf.c sysconf_$(HOST_ARCH).c ;\
-		fi ;\
-	fi
-
-sysconf_native: gen_sysconf_tester.o
-
-sysconf_src.c: sysconf_$(TARGET_ARCH).c
-	cp -f sysconf_$(TARGET_ARCH).c sysconf_src.c
-
-
 $(COBJS): %.o : %.c
 	$(CC) $(CFLAGS) -c $< -o $@
 	$(STRIPTOOL) -x -R .note -R .comment $*.o
@@ -111,9 +58,9 @@ $(patsubst %, _dir_%, $(DIRS)) : dummy
 $(patsubst %, _dirclean_%, $(DIRS)) : dummy
 	$(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
 
-.PHONY: dummy sysconf_native
+.PHONY: dummy
 dummy:
 
 clean:
-	$(RM) *.[oa] *~ core gen_sysconf sysconf_*.c
+	$(RM) *.[oa] *~ core
 

libc/unistd/sysconf.c

@@ -47,7 +47,6 @@ extern int getdtablesize (void);
  * repeats and moving to a table-based implementation, we generate 283
  * bytes on i386 (-Os -fomit-frame-pointer).
  */
-#ifndef _UCLIBC_GENERATE_SYSCONF_MAIN
 
 #ifdef _UCLIBC_GENERATE_SYSCONF_ARCH
 /*
@@ -900,164 +899,3 @@ long int __sysconf(int name)
 }
 weak_alias(__sysconf, sysconf);
 
-#endif /* _UCLIBC_GENERATE_SYSCONF_MAIN */
-/***********************************************************************/
-#ifdef _UCLIBC_GENERATE_SYSCONF_MAIN
-
-static long int ret_vals[_UCLIBC_SYSCONF_NUM_VALID_ARGS];
-
-static const char *type_str[] = {
-	"char", "short", "int", "long"
-};
-
-static const char *type_fmt[] = { " %4ld", " %6ld", " %8ld", " %8ld" };
-static const int type_mod[] = { 13, 9, 6, 6 };
-
-static int find_or_add_in_table(int index, long int val, int *table, 
-								int *num_in_table, int add_flag)
-{
-	int i;
-
-	for (i=0 ; i<*num_in_table ; i++) {
-		if (ret_vals[table[i]] == val) {
-			return i;
-		}
-	}
-	if (add_flag) {
-		table[(*num_in_table)++] = index;
-		return i;
-	} else {
-		return -1;
-	}
-}
-
-
-int main(void)
-{
-	long int r;
-	int type_table[5][_UCLIBC_SYSCONF_NUM_VALID_ARGS];
-	int ret_type[_UCLIBC_SYSCONF_NUM_VALID_ARGS];
-	int num_type[5];
-	int i, j, k, code;
-
-	for (i=0 ; i<5 ; i++) {
-		num_type[i] = 0;
-	}
-
-	for (i=0; i<_UCLIBC_SYSCONF_NUM_VALID_ARGS ; i++) {
-		__set_errno(0);
-		r = ret_vals[i] = sysconf(i);
-		switch(errno) {
-			case EINVAL:		/* we're missing a case! */
-				fprintf(stderr,"sysconf.c is broken! case %d missing!\n", i);
-				return EXIT_FAILURE;
-			case EISNAM:		/* function */
-				find_or_add_in_table(i,r,type_table[4],num_type+4,1);
-				ret_type[i] = 4;
-				break;
-			case ENOSYS:		/* defaults to -1 */
-				/* why does this break for shared???? */
-				fprintf(stderr,"gen_sysconf advisory --"
-						"case %d defaults to -1\n", i);
-				/* fall through */
-			case 0:
-				if ((r>=CHAR_MIN) && (r<=CHAR_MAX)) {
-					ret_type[i] = 0;
-					find_or_add_in_table(i,r,type_table[0],num_type+0,1);
-				} else if ((r>=SHRT_MIN) && (r<=SHRT_MAX)) {
-					ret_type[i] = 1;
-					find_or_add_in_table(i,r,type_table[1],num_type+1,1);
-				} else if ((r>=INT_MIN) && (r<=INT_MAX)) {
-					ret_type[i] = 2;
-					find_or_add_in_table(i,r,type_table[2],num_type+2,1);
-				} else {
-					ret_type[i] = 3;
-					find_or_add_in_table(i,r,type_table[3],num_type+3,1);
-				}
-				break;
-			default:
-				fprintf(stderr,"sysconf.c is broken! errno = %d!\n", errno);
-				break;
-		}
-	}
-
-	printf("#include <errno.h>\n#include <unistd.h>\n#include <limits.h>\n\n");
-
-	printf("static const unsigned char index[%d] = {",
-		   _UCLIBC_SYSCONF_NUM_VALID_ARGS);
-	for (i=0 ; i<_UCLIBC_SYSCONF_NUM_VALID_ARGS ; i++) {
-		if (i) printf(",");
-		if (i%15 == 0) printf("\n");
-		code = 0;
-		for (j=0 ; j<4 ; j++) {
-			k = find_or_add_in_table(i,ret_vals[i],type_table[j],num_type+j,0);
-			if (k>=0) {
-				code += k;
-				break;
-			}
-			code += num_type[j];
-		}
-		printf(" %3d", code);
-	}
-	printf("\n};\n\n");
-
-	for (j=0 ; j < 4 ; j++) {
-		if (num_type[j]) {
-			printf("static const %s %s_vals[%d] = {",
-				   type_str[j], type_str[j], num_type[j]);
-			for (i = 0 ; i<num_type[j] ; i++) {
-				if (i) printf(",");
-				if (i%13 == 0) printf("\n");
-				if (ret_vals[type_table[j][i]] == INT_MIN) {
-					printf("%12s","INT_MIN");
-				} else {
-					printf(type_fmt[j], ret_vals[type_table[j][i]]);
-				}
-
-			}
-			printf("\n};\n\n");
-		}
-	}
-
-	printf("long int sysconf(int name)\n{\n\tint i;\n\n"
-		   "\tif ((name < 0) || (name >= %d)) {\n"
-		   "\t\terrno=EINVAL;\n"
-		   "\t\treturn -1;\n"
-		   "\t}\n\n", _UCLIBC_SYSCONF_NUM_VALID_ARGS);
-
-	printf("\ti = index[name];\n\n");
-	k = 0;
-	for (i=0 ; i<4 ; i++) {
-		if (num_type[i]) {
-			if (k>0) {
-				printf("\ti -= %d;\n", k);
-			}
-			printf("\tif (i < %d) {\n"
-				   "\t\treturn %s_vals[i];\n"
-				   "\t}\n\n",
-				   num_type[i], type_str[i]);
-			k = num_type[i];
-		}
-	}
-
-	if (num_type[4]) {
-		if (k>0) {
-			printf("\ti -= %d;\n", k);
-		}
-		printf("\tswitch(i) {\n");
-		for (i = 0 ; i<num_type[4] ; i++) {
-			printf("\t\tcase %d:\n"
-				   "\t\t\treturn %s;\n",
-				   i, (const char *)ret_vals[type_table[4][i]]);
-		}
-		printf("\t}\n\n");
-	}
-
-	printf("\treturn -1;\n"
-		   "}\n");
-
-
-	return EXIT_SUCCESS;
-}
-/***********************************************************************/
-#endif