Move buildroot to bsp directory.

bsp/buildroot/boot/syslinux/Config.in

@@ -0,0 +1,59 @@
+config BR2_TARGET_SYSLINUX
+	bool "syslinux"
+	depends on BR2_i386 || BR2_x86_64
+	select BR2_HOSTARCH_NEEDS_IA32_COMPILER
+	help
+	  The syslinux bootloader for x86 systems.
+	  This includes: syslinux, pxelinux, extlinux.
+
+	  http://syslinux.org
+
+if BR2_TARGET_SYSLINUX
+
+config BR2_TARGET_SYSLINUX_LEGACY_BIOS
+	bool
+
+choice
+	bool "Image to install"
+
+config BR2_TARGET_SYSLINUX_ISOLINUX
+	bool "isolinux"
+	select BR2_TARGET_SYSLINUX_LEGACY_BIOS
+	help
+	  Install the legacy-BIOS 'isolinux' image, to boot off
+	  optical media (CDROM, DVD.)
+
+config BR2_TARGET_SYSLINUX_PXELINUX
+	bool "pxelinux"
+	select BR2_TARGET_SYSLINUX_LEGACY_BIOS
+	help
+	  Install the legacy-BIOS 'pxelinux' image, to boot off
+	  the network using PXE.
+
+config BR2_TARGET_SYSLINUX_MBR
+	bool "mbr"
+	select BR2_TARGET_SYSLINUX_LEGACY_BIOS
+	help
+	  Install the legacy-BIOS 'mbr' image, to boot off a
+	  local MBR-partition (e.g. prepared with 'extlinux'
+	  or 'syslinux').
+
+config BR2_TARGET_SYSLINUX_EFI
+	bool "efi"
+	select BR2_PACKAGE_GNU_EFI
+	help
+	  Install the 'efi' image, to boot from an EFI environment.
+
+endchoice
+
+if BR2_TARGET_SYSLINUX_LEGACY_BIOS
+
+config BR2_TARGET_SYSLINUX_C32
+	string "modules to install"
+	help
+	  Enter a space-separated list of .c32 modules to install.
+	  Leave empty to install no module.
+
+endif # BR2_TARGET_SYSLINUX_LEGACY_BIOS
+
+endif # BR2_TARGET_SYSLINUX

bsp/buildroot/boot/syslinux/syslinux.hash

@@ -0,0 +1,2 @@
+# From https://www.kernel.org/pub/linux/utils/boot/syslinux/sha256sums.asc
+sha256	26d3986d2bea109d5dc0e4f8c4822a459276cf021125e8c9f23c3cca5d8c850e	syslinux-6.03.tar.xz

bsp/buildroot/boot/syslinux/syslinux.mk

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+################################################################################
+#
+# syslinux to make target msdos/iso9660 filesystems bootable
+#
+################################################################################
+
+SYSLINUX_VERSION = 6.03
+SYSLINUX_SOURCE = syslinux-$(SYSLINUX_VERSION).tar.xz
+SYSLINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/boot/syslinux
+
+SYSLINUX_LICENSE = GPLv2+
+SYSLINUX_LICENSE_FILES = COPYING
+
+SYSLINUX_INSTALL_IMAGES = YES
+
+SYSLINUX_DEPENDENCIES = host-nasm host-util-linux host-upx
+
+ifeq ($(BR2_TARGET_SYSLINUX_LEGACY_BIOS),y)
+SYSLINUX_TARGET = bios
+endif
+
+# The syslinux build system must be forced to use Buildroot's gnu-efi
+# package by setting EFIINC, LIBDIR and LIBEFI. Otherwise, it uses its
+# own copy of gnu-efi included in syslinux's sources since 6.03
+# release.
+ifeq ($(BR2_TARGET_SYSLINUX_EFI),y)
+ifeq ($(BR2_ARCH_IS_64),y)
+SYSLINUX_EFI_BITS = efi64
+else
+SYSLINUX_EFI_BITS = efi32
+endif # 64-bit
+SYSLINUX_DEPENDENCIES += gnu-efi
+SYSLINUX_TARGET = $(SYSLINUX_EFI_BITS)
+SYSLINUX_EFI_ARGS = \
+	EFIINC=$(STAGING_DIR)/usr/include/efi \
+	LIBDIR=$(STAGING_DIR)/usr/lib \
+	LIBEFI=$(STAGING_DIR)/usr/lib/libefi.a
+endif # EFI
+
+# The syslinux tarball comes with pre-compiled binaries.
+# Since timestamps might not be in the correct order, a rebuild is
+# not always triggered for all the different images.
+# Cleanup the mess even before we attempt a build, so we indeed
+# build everything from source.
+define SYSLINUX_CLEANUP
+	rm -rf $(@D)/bios $(@D)/efi32 $(@D)/efi64
+endef
+SYSLINUX_POST_PATCH_HOOKS += SYSLINUX_CLEANUP
+
+# syslinux build system has no convenient way to pass CFLAGS,
+# and the internal zlib should take precedence so -I shouldn't
+# be used.
+define SYSLINUX_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE1) CC="$(HOSTCC) -idirafter $(HOST_DIR)/usr/include $(HOST_LDFLAGS)" \
+		AR="$(HOSTAR)" $(SYSLINUX_EFI_ARGS) -C $(@D) $(SYSLINUX_TARGET)
+endef
+
+# While the actual bootloader is compiled for the target, several
+# utilities for installing the bootloader are meant for the host.
+# Repeat the target, otherwise syslinux will try to build everything
+# Repeat CC and AR, since syslinux really wants to check them at
+# install time
+define SYSLINUX_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE1) CC="$(HOSTCC) -idirafter $(HOST_DIR)/usr/include $(HOST_LDFLAGS)" \
+		AR="$(HOSTAR)" $(SYSLINUX_EFI_ARGS) INSTALLROOT=$(HOST_DIR) \
+		-C $(@D) $(SYSLINUX_TARGET) install
+endef
+
+SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_ISOLINUX) += bios/core/isolinux.bin
+SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_PXELINUX) += bios/core/pxelinux.bin
+SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_MBR) += bios/mbr/mbr.bin
+SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_EFI) += $(SYSLINUX_EFI_BITS)/efi/syslinux.efi
+
+SYSLINUX_C32 = $(call qstrip,$(BR2_TARGET_SYSLINUX_C32))
+
+# We install the c32 modules from the host-installed tree, where they
+# are all neatly installed in a single location, while they are
+# scattered around everywhere in the build tree.
+define SYSLINUX_INSTALL_IMAGES_CMDS
+	for i in $(SYSLINUX_IMAGES-y); do \
+		$(INSTALL) -D -m 0755 $(@D)/$$i $(BINARIES_DIR)/syslinux/$${i##*/}; \
+	done
+	for i in $(SYSLINUX_C32); do \
+		$(INSTALL) -D -m 0755 $(HOST_DIR)/usr/share/syslinux/$${i} \
+			$(BINARIES_DIR)/syslinux/$${i}; \
+	done
+endef
+
+$(eval $(generic-package))