kumquat-buildroot/package/binutils/binutils.mk
Thomas Petazzoni f9cffb6af4 binutils: replace hard-links with soft-links to fix rpath
binutils installs its binaries both as bin/<tuple>-<tool> and as
<tuple>/bin/<tool>, and hardlinks are used to reduce disk space
consumption. This causes a problem for host-binutils with our rpath
fixing logic done by "make sdk".

Indeed, the fix-rpath script starts by fixing up the rpath of
bin/<tuple>-<tool>, and sets the RPATH to $ORIGIN/../lib/. Then
fix-rpath moves on to <tuple>/bin/<tool>, and doesn't find the library
the tool depends on, and clears the RPATH. The result is that the
binutils tool are not usable.

Note that this is only visible currently on the ARC architecture,
because on this architecture, binutils is fetched from git, which
causes host-flex to be built, and some binutils tools to use the libfl
shared library. Therefore, the binutils tools don't use just the
standard C library (which is provided by the system) but also libfl
from $(HOST_DIR)/lib, and therefore if the RPATH isn't set correctly,
those tools don't work properly.

In order to address this, this comit adds a post-install hook to
host-binutils that replaces those hard links by symbolic links. It is
worth mentioning that library loading and RPATH usage occurs *after*
resolving the symbolic links, which makes this solution work.

Fixes:

  http://autobuild.buildroot.net/results/b2562b05d397d4e1ffe0f8d2f4ce4c84ab6feae1/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2018-05-06 22:16:59 +02:00

147 lines
4.9 KiB
Makefile

################################################################################
#
# binutils
#
################################################################################
# Version is set when using buildroot toolchain.
# If not, we do like other packages
BINUTILS_VERSION = $(call qstrip,$(BR2_BINUTILS_VERSION))
ifeq ($(BINUTILS_VERSION),)
ifeq ($(BR2_arc),y)
BINUTILS_VERSION = arc-2018.03-rc1
else
BINUTILS_VERSION = 2.29.1
endif
endif # BINUTILS_VERSION
ifeq ($(BINUTILS_VERSION),arc-2018.03-rc1)
BINUTILS_SITE = $(call github,foss-for-synopsys-dwc-arc-processors,binutils-gdb,$(BINUTILS_VERSION))
BINUTILS_SOURCE = binutils-$(BINUTILS_VERSION).tar.gz
BINUTILS_FROM_GIT = y
endif
BINUTILS_SITE ?= $(BR2_GNU_MIRROR)/binutils
BINUTILS_SOURCE ?= binutils-$(BINUTILS_VERSION).tar.xz
BINUTILS_EXTRA_CONFIG_OPTIONS = $(call qstrip,$(BR2_BINUTILS_EXTRA_CONFIG_OPTIONS))
BINUTILS_INSTALL_STAGING = YES
BINUTILS_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES)
BINUTILS_MAKE_OPTS = LIBS=$(TARGET_NLS_LIBS)
BINUTILS_LICENSE = GPL-3.0+, libiberty LGPL-2.1+
BINUTILS_LICENSE_FILES = COPYING3 COPYING.LIB
ifeq ($(BINUTILS_FROM_GIT),y)
BINUTILS_DEPENDENCIES += host-flex host-bison
HOST_BINUTILS_DEPENDENCIES += host-flex host-bison
endif
# When binutils sources are fetched from the binutils-gdb repository,
# they also contain the gdb sources, but gdb shouldn't be built, so we
# disable it.
BINUTILS_DISABLE_GDB_CONF_OPTS = \
--disable-sim \
--disable-gdb
# We need to specify host & target to avoid breaking ARM EABI
BINUTILS_CONF_OPTS = \
--disable-multilib \
--disable-werror \
--host=$(GNU_TARGET_NAME) \
--target=$(GNU_TARGET_NAME) \
--enable-install-libiberty \
--enable-build-warnings=no \
$(BINUTILS_DISABLE_GDB_CONF_OPTS) \
$(BINUTILS_EXTRA_CONFIG_OPTIONS)
ifeq ($(BR2_STATIC_LIBS),y)
BINUTILS_CONF_OPTS += --disable-plugins
endif
# Don't build documentation. It takes up extra space / build time,
# and sometimes needs specific makeinfo versions to work
BINUTILS_CONF_ENV += MAKEINFO=true
BINUTILS_MAKE_OPTS += MAKEINFO=true
BINUTILS_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) MAKEINFO=true install
HOST_BINUTILS_CONF_ENV += MAKEINFO=true
HOST_BINUTILS_MAKE_OPTS += MAKEINFO=true
HOST_BINUTILS_INSTALL_OPTS += MAKEINFO=true install
# Workaround a build issue with -Os for ARM Cortex-M cpus.
# (Binutils 2.25.1 and 2.26.1)
# https://sourceware.org/bugzilla/show_bug.cgi?id=20552
ifeq ($(BR2_ARM_CPU_ARMV7M)$(BR2_OPTIMIZE_S),yy)
BINUTILS_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -O2"
endif
# Install binutils after busybox to prefer full-blown utilities
ifeq ($(BR2_PACKAGE_BUSYBOX),y)
BINUTILS_DEPENDENCIES += busybox
endif
ifeq ($(BR2_PACKAGE_ZLIB),y)
BINUTILS_DEPENDENCIES += zlib
endif
# "host" binutils should actually be "cross"
# We just keep the convention of "host utility" for now
HOST_BINUTILS_CONF_OPTS = \
--disable-multilib \
--disable-werror \
--target=$(GNU_TARGET_NAME) \
--disable-shared \
--enable-static \
--with-sysroot=$(STAGING_DIR) \
--enable-poison-system-directories \
$(BINUTILS_DISABLE_GDB_CONF_OPTS) \
$(BINUTILS_EXTRA_CONFIG_OPTIONS)
# binutils run configure script of subdirs at make time, so ensure
# our TARGET_CONFIGURE_ARGS are taken into consideration for those
define BINUTILS_BUILD_CMDS
$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_ARGS) $(MAKE) $(BINUTILS_MAKE_OPTS) -C $(@D)
endef
# We just want libbfd, libiberty and libopcodes,
# not the full-blown binutils in staging
define BINUTILS_INSTALL_STAGING_CMDS
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/bfd DESTDIR=$(STAGING_DIR) install
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/opcodes DESTDIR=$(STAGING_DIR) install
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
endef
# If we don't want full binutils on target
ifneq ($(BR2_PACKAGE_BINUTILS_TARGET),y)
define BINUTILS_INSTALL_TARGET_CMDS
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/bfd DESTDIR=$(TARGET_DIR) install
$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/libiberty DESTDIR=$(STAGING_DIR) install
endef
endif
ifneq ($(ARCH_XTENSA_OVERLAY_FILE),)
define BINUTILS_XTENSA_OVERLAY_EXTRACT
$(call arch-xtensa-overlay-extract,$(@D),binutils)
endef
BINUTILS_POST_EXTRACT_HOOKS += BINUTILS_XTENSA_OVERLAY_EXTRACT
BINUTILS_EXTRA_DOWNLOADS += $(ARCH_XTENSA_OVERLAY_URL)
HOST_BINUTILS_POST_EXTRACT_HOOKS += BINUTILS_XTENSA_OVERLAY_EXTRACT
HOST_BINUTILS_EXTRA_DOWNLOADS += $(ARCH_XTENSA_OVERLAY_URL)
endif
ifeq ($(BR2_BINUTILS_ENABLE_LTO),y)
HOST_BINUTILS_CONF_OPTS += --enable-plugins --enable-lto
endif
# Hardlinks between binaries in different directories cause a problem
# with rpath fixup, so we de-hardlink those binaries, and replace them
# with symbolic links.
BINUTILS_TOOLS = ar as ld ld.bfd nm objcopy objdump ranlib readelf strip
define HOST_BINUTILS_FIXUP_HARDLINKS
$(foreach tool,$(BINUTILS_TOOLS),\
rm -f $(HOST_DIR)/$(GNU_TARGET_NAME)/bin/$(tool) ; \
ln -s ../../bin/$(GNU_TARGET_NAME)-$(tool) $(HOST_DIR)/$(GNU_TARGET_NAME)/bin/$(tool)
)
endef
HOST_BINUTILS_POST_INSTALL_HOOKS += HOST_BINUTILS_FIXUP_HARDLINKS
$(eval $(autotools-package))
$(eval $(host-autotools-package))