package/binutils-bare-metal: new package

This patch adds a new package for building binutils for a bare-metal toolchain.
The cpu architecture is defined by a toolchain-bare-metal virtual package.
While any cpu architecture could be used, the default configuration will be a
Xilinx microblaze little endian architecture, so that buildroot will be able
to build the microblaze firmware applications for zynqmp and versal.

In order to build the zynqmp pmufw and versal plm applications without error,
binutils version 2.41 or higher is required.

Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@amd.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1386,6 +1386,7 @@ N:	Ian Haylock <haylocki@yahoo.co.uk>
 F:	package/python-rpi-gpio/
 
 N:	Ibai Erkiaga <ibai.erkiaga-elorza@amd.com>
+F:	package/binutils-bare-metal/
 F:	toolchain/toolchain-bare-metal-buildroot/
 
 N:	Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
@@ -2269,6 +2270,7 @@ F:	configs/zynqmp_kria_kv260_defconfig
 F:	configs/zynqmp_zcu102_defconfig
 F:	configs/zynqmp_zcu104_defconfig
 F:	configs/zynqmp_zcu106_defconfig
+F:	package/binutils-bare-metal/
 F:	package/bootgen/
 F:	package/versal-firmware/
 F:	toolchain/toolchain-bare-metal-buildroot/

package/binutils-bare-metal/binutils-bare-metal.hash

@@ -0,0 +1 @@
+../binutils/binutils.hash

package/binutils-bare-metal/binutils-bare-metal.mk

@@ -0,0 +1,33 @@
+################################################################################
+#
+# binutils-bare-metal
+#
+################################################################################
+
+HOST_BINUTILS_BARE_METAL_VERSION = 2.42
+HOST_BINUTILS_BARE_METAL_SITE = $(BR2_GNU_MIRROR)/binutils
+HOST_BINUTILS_BARE_METAL_SOURCE = binutils-$(HOST_BINUTILS_BARE_METAL_VERSION).tar.xz
+
+HOST_BINUTILS_BARE_METAL_LICENSE = GPL-3.0+, libiberty LGPL-2.1+
+HOST_BINUTILS_BARE_METAL_LICENSE_FILES = COPYING3 COPYING.LIB
+HOST_BINUTILS_BARE_METAL_CPE_ID_VENDOR = gnu
+
+HOST_BINUTILS_BARE_METAL_DEPENDENCIES = host-zlib
+
+# Don't build documentation. It takes up extra space / build time,
+# and sometimes needs specific makeinfo versions to work
+HOST_BINUTILS_BARE_METAL_CONF_ENV += MAKEINFO=true
+HOST_BINUTILS_BARE_METAL_MAKE_OPTS += MAKEINFO=true
+HOST_BINUTILS_BARE_METAL_INSTALL_OPTS += MAKEINFO=true install
+
+HOST_BINUTILS_BARE_METAL_CONF_OPTS = \
+	--target=$(TOOLCHAIN_BARE_METAL_BUILDROOT_ARCH_TUPLE) \
+	--disable-gprof \
+	--disable-shared \
+	--enable-lto \
+	--enable-static \
+	--disable-initfini-array \
+	--disable-multilib \
+	--disable-werror
+
+$(eval $(host-autotools-package))

package/binutils/binutils.hash

@@ -2,6 +2,7 @@
 sha512  68e038f339a8c21faa19a57bbc447a51c817f47c2e06d740847c6e9cc3396c025d35d5369fa8c3f8b70414757c89f0e577939ddc0d70f283182504920f53b0a3  binutils-2.39.tar.xz
 sha512  a37e042523bc46494d99d5637c3f3d8f9956d9477b748b3b1f6d7dfbb8d968ed52c932e88a4e946c6f77b8f48f1e1b360ca54c3d298f17193f3b4963472f6925  binutils-2.40.tar.xz
 sha512  5df45d0bd6ddabdce4f35878c041e46a92deef01e7dea5facc97fd65cc06b59abc6fba0eb454b68e571c7e14038dc823fe7f2263843e6e627b7444eaf0fe9374  binutils-2.41.tar.xz
+sha512  155f3ba14cd220102f4f29a4f1e5cfee3c48aa03b74603460d05afb73c70d6657a9d87eee6eb88bf13203fe6f31177a5c9addc04384e956e7da8069c8ecd20a6  binutils-2.42.tar.xz
 
 # Locally calculated (fetched from Github)
 sha512  3518b47d5c11d1fb478ee152bde1719363f9391db73f3b9f5491217c17742bef8ebca6a51a40302dfaa9476c5a32a8b8f70a4bf64289422dea5f750ae53ab88d  binutils-gdb-arc-2023.09-release.tar.gz