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kumquat-buildroot/package/busybox/busybox.mk
Thomas Petazzoni 55098e5048 busybox: make sure architecture flags are used at link time 
When compiling Busybox, according to readelf -A, all object files were
properly compiled according to the select architecture (-march=armv4t
for example), but the final busybox binary could be of a different
architecture (ARMv5t even if ARMv4t was selected).

This patch changes the way we configure/compile Busybox so that our
CFLAGS aren't anymore passed through the make EXTRA_CFLAGS variable,
but through the .config CONFIG_EXTRA_CFLAGS variable. Unfortunately,
those variables don't have exactly the same semantic for the Busybox
build system.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2010-04-17 02:10:58 +02:00

151 lines
5.6 KiB
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#############################################################
#
# busybox
#
#############################################################
ifeq ($(BR2_PACKAGE_BUSYBOX_SNAPSHOT),y)
# Be aware that this changes daily....
BUSYBOX_DIR:=$(BUILD_DIR)/busybox
BUSYBOX_SOURCE:=busybox-snapshot.tar.bz2
BUSYBOX_SITE:=http://www.busybox.net/downloads/snapshots
else
BUSYBOX_VERSION=$(call qstrip,$(BR2_BUSYBOX_VERSION))
BUSYBOX_DIR:=$(BUILD_DIR)/busybox-$(BUSYBOX_VERSION)
BUSYBOX_SOURCE:=busybox-$(BUSYBOX_VERSION).tar.bz2
BUSYBOX_SITE:=http://www.busybox.net/downloads
endif
BUSYBOX_UNZIP=$(BZCAT)
BUSYBOX_CFLAGS=$(TARGET_CFLAGS) -I$(LINUX_HEADERS_DIR)/include
ifndef BUSYBOX_CONFIG_FILE
BUSYBOX_CONFIG_FILE=$(call qstrip,$(BR2_PACKAGE_BUSYBOX_CONFIG))
endif
$(DL_DIR)/$(BUSYBOX_SOURCE):
$(call DOWNLOAD,$(BUSYBOX_SITE),$(BUSYBOX_SOURCE))
$(BUSYBOX_DIR)/.unpacked: $(DL_DIR)/$(BUSYBOX_SOURCE)
$(BUSYBOX_UNZIP) $(DL_DIR)/$(BUSYBOX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
ifeq ($(BR2_PACKAGE_SYSKLOGD),y)
# if we have external syslogd, force busybox to use it
$(SED) "/#include.*busybox\.h/a#define CONFIG_SYSLOGD" $(BUSYBOX_DIR)/init/init.c
endif
# Allow busybox patches.
ifeq ($(BR2_PACKAGE_BUSYBOX_SNAPSHOT),y)
toolchain/patch-kernel.sh $(BUSYBOX_DIR) package/busybox busybox.\*.patch
else
toolchain/patch-kernel.sh $(BUSYBOX_DIR) package/busybox busybox-$(BUSYBOX_VERSION)-\*.patch
endif
touch $@
$(BUSYBOX_DIR)/.config: $(BUSYBOX_DIR)/.unpacked $(BUSYBOX_CONFIG_FILE)
cp -f $(BUSYBOX_CONFIG_FILE) $(BUSYBOX_DIR)/.config
$(SED) s,^CONFIG_PREFIX=.*,CONFIG_PREFIX=\"$(TARGET_DIR)\", \
$(BUSYBOX_DIR)/.config
$(SED) 's,^CONFIG_EXTRA_CFLAGS=.*,CONFIG_EXTRA_CFLAGS=\"$(BUSYBOX_CFLAGS)\",' \
$(BUSYBOX_DIR)/.config
# id applet breaks on >=1.13.0 with old uclibc unless the bb pwd routines are used
ifeq ($(BR2_BUSYBOX_VERSION_1_13_X)$(BR2_BUSYBOX_VERSION_1_14_X)$(BR2_UCLIBC_VERSION_0_9_28_3)$(BR2_UCLIBC_VERSION_0_9_29),yy)
if grep -q 'CONFIG_ID=y' $(BUSYBOX_DIR)/.config; \
then \
echo 'warning: CONFIG_ID needs BB_PWD_GRP with old uclibc, enabling' >&2;\
$(SED) "s/^.*CONFIG_USE_BB_PWD_GRP.*/CONFIG_USE_BB_PWD_GRP=y/;" $(BUSYBOX_DIR)/.config; \
fi
endif
ifeq ($(BR2_PACKAGE_BUSYBOX_SNAPSHOT),y)
$(SED) s,^CROSS_COMPILER_PREFIX=.*,CROSS_COMPILER_PREFIX=\"$(TARGET_CROSS)\", \
$(BUSYBOX_DIR)/.config
$(SED) s,^PREFIX=.*,CROSS_COMPILER_PREFIX=\"$(TARGET_CROSS)\", \
$(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_LARGEFILE),y)
$(SED) "s/^.*CONFIG_LFS.*/CONFIG_LFS=y/;" $(BUSYBOX_DIR)/.config
$(SED) "s/^.*CONFIG_FDISK_SUPPORT_LARGE_DISKS.*/CONFIG_FDISK_SUPPORT_LARGE_DISKS=y/;" $(BUSYBOX_DIR)/.config
else
$(SED) "s/^.*CONFIG_LFS.*/CONFIG_LFS=n/;" $(BUSYBOX_DIR)/.config
$(SED) "s/^.*FDISK_SUPPORT_LARGE_DISKS.*/CONFIG_FDISK_SUPPORT_LARGE_DISKS=n/;" $(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_INET_IPV6),y)
$(SED) "s/^.*CONFIG_FEATURE_IPV6.*/CONFIG_FEATURE_IPV6=y/;" $(BUSYBOX_DIR)/.config
$(SED) "s/^.*CONFIG_FEATURE_IFUPDOWN_IPV6.*/CONFIG_FEATURE_IFUPDOWN_IPV6=y/;" $(BUSYBOX_DIR)/.config
else
$(SED) "s/^.*CONFIG_FEATURE_IPV6.*/CONFIG_FEATURE_IPV6=n/;" $(BUSYBOX_DIR)/.config
$(SED) "s/^.*CONFIG_FEATURE_IFUPDOWN_IPV6.*/CONFIG_FEATURE_IFUPDOWN_IPV6=n/;" $(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_INET_RPC),y)
$(SED) "s/^.*CONFIG_FEATURE_MOUNT_NFS.*/CONFIG_FEATURE_MOUNT_NFS=y/;" $(BUSYBOX_DIR)/.config
else
$(SED) "s/^.*CONFIG_FEATURE_MOUNT_NFS.*/CONFIG_FEATURE_MOUNT_NFS=n/;" $(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_PREFER_STATIC_LIB),y)
$(SED) "s/^.*CONFIG_STATIC.*/CONFIG_STATIC=y/;" $(BUSYBOX_DIR)/.config
else
$(SED) "s/^.*CONFIG_STATIC.*/CONFIG_STATIC=n/;" $(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_PACKAGE_BUSYBOX_SKELETON),y)
# force mdev on
$(SED) "s/^.*CONFIG_MDEV.*/CONFIG_MDEV=y/" $(BUSYBOX_DIR)/.config
endif
ifeq ($(BR2_PACKAGE_NETKITBASE),y)
# disable usage of inetd if netkit-base package is selected
$(SED) "s/^.*CONFIG_INETD.*/CONFIG_INETD=n/;" $(BUSYBOX_DIR)/.config
@echo "WARNING!! CONFIG_INETD option disabled!"
endif
ifeq ($(BR2_PACKAGE_NETKITTELNET),y)
# disable usage of telnetd if netkit-telnetd package is selected
$(SED) "s/^.*CONFIG_TELNETD.*/CONFIG_TELNETD=n/;" $(BUSYBOX_DIR)/.config
@echo "WARNING!! CONFIG_TELNETD option disabled!"
endif
yes "" | $(MAKE) CC=$(TARGET_CC) CROSS_COMPILE="$(TARGET_CROSS)" \
CROSS="$(TARGET_CROSS)" -C $(BUSYBOX_DIR) oldconfig
touch $@
$(BUSYBOX_DIR)/busybox: $(BUSYBOX_DIR)/.config
$(MAKE) CC=$(TARGET_CC) CROSS_COMPILE="$(TARGET_CROSS)" \
CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
ARCH=$(KERNEL_ARCH) -C $(BUSYBOX_DIR)
$(TARGET_DIR)/bin/busybox: $(BUSYBOX_DIR)/busybox
ifeq ($(BR2_PACKAGE_BUSYBOX_FULLINSTALL),y)
$(MAKE) CC=$(TARGET_CC) CROSS_COMPILE="$(TARGET_CROSS)" \
CROSS="$(TARGET_CROSS)" PREFIX="$(TARGET_DIR)" \
ARCH=$(KERNEL_ARCH) -C $(BUSYBOX_DIR) install
else
install -D -m 0755 $(BUSYBOX_DIR)/busybox $(TARGET_DIR)/bin/busybox
endif
# Just in case
-chmod a+x $(TARGET_DIR)/usr/share/udhcpc/default.script
busybox: $(TARGET_DIR)/bin/busybox
busybox-source: $(DL_DIR)/$(BUSYBOX_SOURCE)
busybox-unpacked: host-sed $(BUILD_DIR) $(BUSYBOX_DIR)/.unpacked
busybox-config: host-sed $(BUILD_DIR) $(BUSYBOX_DIR)/.config
busybox-menuconfig: host-sed $(BUILD_DIR) busybox-source $(BUSYBOX_DIR)/.config
$(MAKE) __TARGET_ARCH=$(ARCH) -C $(BUSYBOX_DIR) menuconfig
busybox-update:
cp -f $(BUSYBOX_DIR)/.config $(BUSYBOX_CONFIG_FILE)
busybox-clean:
rm -f $(TARGET_DIR)/bin/busybox
-$(MAKE) -C $(BUSYBOX_DIR) clean
busybox-dirclean:
rm -rf $(BUSYBOX_DIR)
#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(BR2_PACKAGE_BUSYBOX),y)
TARGETS+=busybox
endif
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