xen: GMP recipe for Xen stubdoms

GMP is a fast precision arithmetic library targeted for cryptographic
applications. This GMP recipe creates a static library that is
cross-compiled against that is cross-compiled against MiniOS, Xen, LWIP,
Newlib, and PolarSSL headers and subsquently used during the
cross-compilation and linking of the TPM Emulator and the Xen vTPM and
vTPM Manager stubdomains.

Signed-off-by: Kurt Bodiker <kurt.bodiker@braintrust-us.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

recipes-extended/xen/stubdom-gmp.inc

@@ -0,0 +1,37 @@
+# Copyright (C) 2017 Kurt Bodiker <kurt.bodiker@braintrust-us.com>
+# Released under the MIT license (see COPYING.MIT for the terms)
+
+require stubdom.inc
+
+DEPENDS += "\
+    newlib \
+"
+
+do_configure() {
+    # need to modify prefix here during configure otherwise OE-level variables
+    # (prefix, libdir, includedir, etc...) defined in stubdom.inc get messed up
+    CPPFLAGS="-isystem ${RECIPE_SYSROOT}/cross-root-${GNU_TARGET_ARCH}/${GNU_TARGET_ARCH}-xen-elf/include ${STUBDOM_CPPFLAGS}" \
+    CFLAGS="${STUBDOM_CFLAGS}" \
+    CC="${HOST_PREFIX}gcc --sysroot=${RECIPE_SYSROOT}" \
+    ${S}/configure \
+        --disable-shared \
+        --enable-static \
+        --disable-fft \
+        --without-readline \
+        --with-gnu-ld \
+        --prefix=${prefix}/${GNU_TARGET_ARCH}-xen-elf \
+        --libdir=${libdir} \
+        --build=`${HOST_PREFIX}gcc -dumpmachine` \
+        --host=${GNU_TARGET_ARCH}-xen-elf
+
+    sed -i 's/#define HAVE_OBSTACK_VPRINTF 1/\/\/#define HAVE_OBSTACK_VPRINTF 1/' ${S}/config.h
+}
+
+do_compile() {
+    ${MAKE}
+}
+
+do_install() {
+    ${MAKE} DESTDIR=${D} install
+    rm -rf ${D}${prefix}/${GNU_TARGET_ARCH}-xen-elf/share
+}

recipes-extended/xen/stubdom-gmp_4.3.2.bb

@@ -0,0 +1,20 @@
+# Copyright (C) 2017 Kurt Bodiker <kurt.bodiker@braintrust-us.com>
+# Released under the MIT license (see COPYING.MIT for the terms)
+
+DESCRIPTION = "GMP library for Xen vTPM's."
+HOMEPAGE = "http://gmp"
+LICENSE = "GPLv3"
+LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504 \
+                    file://COPYING.LIB;md5=6a6a8e020838b23406c81b19c1d46df6 \
+"
+
+SRC_URI = "\
+    https://gmplib.org/download/gmp/archive/gmp-${PV}.tar.bz2 \
+"
+SRC_URI[md5sum] = "dd60683d7057917e34630b4a787932e8"
+SRC_URI[sha256sum] = "936162c0312886c21581002b79932829aa048cfaf9937c6265aeaa14f1cd1775"
+
+S="${WORKDIR}/gmp-${PV}"
+B="${S}"
+
+require stubdom-gmp.inc