Simplify kvm symbol resolution and error handling. The symbol table

nl_symbols will eventually be organized into several modules depending
on MK_* variables.

1 files changed, 24 insertions, 1 deletions

diff --git a/usr.bin/netstat/Makefile b/usr.bin/netstat/Makefile
index 0572a03..abfebf4 100644
--- a/usr.bin/netstat/Makefile
+++ b/usr.bin/netstat/Makefile
@@ -4,9 +4,32 @@
 .include <src.opts.mk>
 
 PROG=	netstat
-SRCS=	if.c inet.c main.c mbuf.c mroute.c netisr.c route.c \
+SRCS=	if.c inet.c main.c mbuf.c mroute.c netisr.c nl_symbols.c route.c \
 	unix.c mroute6.c ipsec.c bpf.c pfkey.c sctp.c \
 	flowtable.c
+DPSRCS=	nl_defs.h
+
+nl_symbols.c: nlist_symbols
+	awk '\
+	    BEGIN { \
+		print "#include <sys/param.h>"; \
+		print "#include <nlist.h>"; \
+		print "struct nlist nl[] = {"; \
+	    } \
+	    !/^\#/ { printf("\t{ .n_name = \"%s\" },\n", $$2); } \
+	    END { print "\t{ .n_name = NULL },\n};" } \
+	    ' < ${.ALLSRC} > ${.TARGET} || rm -f ${.TARGET}
+nl_defs.h: nlist_symbols
+	awk '\
+	    BEGIN { \
+		print "#include <nlist.h>"; \
+		print "extern struct nlist nl[];"; \
+		i = 0; \
+	    } \
+	    !/^\#/ { printf("\#define\tN%s\t%s\n", toupper($$2), i++); }' \
+	    < ${.ALLSRC} > ${.TARGET} || rm -f ${.TARGET}
+CLEANFILES+=	nl_symbols.c nl_defs.h
+CFLAGS+=	-I${.OBJDIR}
 
 WARNS?=	3
 CFLAGS+=-fno-strict-aliasing