util/intelmetool: Add intelmetool from Damien Zammit

The intelmetool shows information about the Intel
Management Engine for different platforms.

Original source code can be found under following link:
https://github.com/zamaudio/intelmetool.git

Change-Id: I0eb17833a21eb04cf9245a7312289a4102bec1a9
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/14136
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

util/intelmetool/Makefile

@@ -0,0 +1,87 @@
+# intelmetool
+
+# Copyright (C) 2013-2015 Damien Zammit <damien@zamaudio.com>
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+PROGRAM = intelmetool
+
+CC      ?= gcc
+INSTALL ?= /usr/bin/install
+PREFIX  ?= /usr/local
+CFLAGS  ?= -O0 -g -Wall -W -Wno-unused-parameter -Wno-unused-but-set-variable -Wno-sign-compare -Wno-unused-function
+LDFLAGS += -lpci -lz
+
+OBJS = intelmetool.o me.o me_status.o mmap.o
+
+OS_ARCH	= $(shell uname)
+ifeq ($(OS_ARCH), Darwin)
+LDFLAGS += -framework DirectHW
+endif
+ifeq ($(OS_ARCH), FreeBSD)
+CFLAGS += -I/usr/local/include
+LDFLAGS += -L/usr/local/lib
+LIBS = -lz
+endif
+ifeq ($(OS_ARCH), NetBSD)
+CFLAGS += -I/usr/pkg/include
+LDFLAGS += -L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib -lz -lpciutils -lpci -l$(shell uname -p)
+endif
+
+all: pciutils dep $(PROGRAM)
+
+$(PROGRAM): $(OBJS)
+	$(CC) $(CFLAGS) -o $(PROGRAM) $(OBJS) $(LDFLAGS)
+
+clean:
+	rm -f $(PROGRAM) *.o *~ junit.xml
+
+distclean: clean
+	rm -f .dependencies
+
+dep:
+	@$(CC) $(CFLAGS) -MM *.c > .dependencies
+
+define LIBPCI_TEST
+/* Avoid a failing test due to libpci header symbol shadowing breakage */
+#define index shadow_workaround_index
+#ifdef __NetBSD__
+#include <pciutils/pci.h>
+#else
+#include <pci/pci.h>
+#endif
+struct pci_access *pacc;
+int main(int argc, char **argv)
+{
+	(void) argc;
+	(void) argv;
+	pacc = pci_alloc();
+	return 0;
+}
+endef
+export LIBPCI_TEST
+
+pciutils:
+	@printf "\nChecking for pciutils and zlib... "
+	@echo "$$LIBPCI_TEST" > .test.c
+	@$(CC) $(CFLAGS) .test.c -o .test $(LDFLAGS) >/dev/null 2>&1 &&	  \
+		printf "found.\n" || ( printf "not found.\n\n"; 	  \
+		printf "Please install pciutils-devel and zlib-devel.\n"; \
+		rm -f .test.c .test; exit 1)
+	@rm -rf .test.c .test .test.dSYM
+
+install: $(PROGRAM)
+	mkdir -p $(DESTDIR)$(PREFIX)/sbin
+	$(INSTALL) $(PROGRAM) $(DESTDIR)$(PREFIX)/sbin
+
+.PHONY: all clean distclean dep pciutils
+
+-include .dependencies