Rename the external toolchain directory.
When new backends are here, it will be easier to sort them out
if they are all prefixed the same way.
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
endchoice
source "toolchain/Config.in.1"
-source "toolchain/external-toolchain/Config.in"
+source "toolchain/toolchain-external/Config.in"
# we want gdb config in the middle of both source and external
# toolchains, but mconf won't let us source the same file twice,
comment "Common Toolchain Options"
source "toolchain/Config.in.2"
-source "toolchain/external-toolchain/Config.in.2"
+source "toolchain/toolchain-external/Config.in.2"
endmenu
+++ /dev/null
-#
-
-if BR2_TOOLCHAIN_EXTERNAL
-choice
- prompt "External toolchain C library"
- default BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-
-config BR2_TOOLCHAIN_EXTERNAL_UCLIBC
- bool "uClibc"
-
-config BR2_TOOLCHAIN_EXTERNAL_GLIBC
- bool "glibc"
-
-endchoice
-
-config BR2_TOOLCHAIN_EXTERNAL_STRIP
- bool
- default y
- prompt "Strip shared libraries"
- help
- Strip shared libraries copied from the external toolchain.
-endif
+++ /dev/null
-#
-
-if BR2_TOOLCHAIN_EXTERNAL
-config BR2_TOOLCHAIN_EXTERNAL_PATH
- string "External toolchain path"
- default "/path/to/staging_dir/usr"
- help
- Path to where the external toolchain is installed.
-
-config BR2_TOOLCHAIN_EXTERNAL_PREFIX
- string "External toolchain prefix"
- default "$(ARCH)-linux"
- help
- This the the external toolchain prefix. For example:
- armeb-unknown-linux-gnu, mipsel-unknown-linux-gnu, etc.
-
-endif
+++ /dev/null
-
-#
-# This file implements the support for external toolchains, i.e
-# toolchains that have not been produced by Buildroot itself and that
-# are already available on the system on which Buildroot runs. So far,
-# we have tested this with:
-#
-# * Toolchains generated by Crosstool-NG
-# * Toolchains generated by Buildroot
-# * ARM, MIPS and PowerPC toolchains made available by
-# Codesourcery. For the MIPS toolchain, the -muclibc variant isn't
-# supported yet, only the default glibc-based variant is.
-#
-# The basic principle is the following
-#
-# 1. Perform some checks on the conformity between the toolchain
-# configuration described in the Buildroot menuconfig system, and the
-# real configuration of the external toolchain. This is for example
-# important to make sure that the Buildroot configuration system
-# knows whether the toolchain supports RPC, IPv6, locales, large
-# files, etc. Unfortunately, these things cannot be detected
-# automatically, since the value of these options (such as
-# BR2_INET_RPC) are needed at configuration time because these
-# options are used as dependencies for other options. And at
-# configuration time, we are not able to retrieve the external
-# toolchain configuration.
-#
-# 2. Copy the libraries needed at runtime to the target directory,
-# $(TARGET_DIR). Obviously, things such as the C library, the dynamic
-# loader and a few other utility libraries are needed if dynamic
-# applications are to be executed on the target system.
-#
-# 3. Copy the libraries and headers to the staging directory. This
-# will allow all further calls to gcc to be made using --sysroot
-# $(STAGING_DIR), which greatly simplifies the compilation of the
-# packages when using external toolchains. So in the end, only the
-# cross-compiler binaries remains external, all libraries and headers
-# are imported into the Buildroot tree.
-
-uclibc: dependencies $(STAMP_DIR)/ext-toolchain-installed
-
-LIB_EXTERNAL_LIBS=ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so libnsl.so libresolv.so librt.so libutil.so
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
-LIB_EXTERNAL_LIBS+=libnss_files.so libnss_dns.so
-endif
-
-ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
-USR_LIB_EXTERNAL_LIBS+=libstdc++.so
-endif
-
-ifneq ($(BR2_PTHREADS_NONE),y)
-LIB_EXTERNAL_LIBS+=libpthread.so
-ifeq ($(BR2_PACKAGE_GDB_SERVER),y)
-LIB_EXTERNAL_LIBS+=libthread_db.so
-endif # gdbserver
-endif # ! no threads
-
-# SYSROOT_DIR selection. We first try the -print-sysroot option,
-# available in gcc 4.4.x and in some Codesourcery toolchains. If this
-# option is not available, we fallback to the value of --with-sysroot
-# as visible in CROSS-gcc -v. We don't pass any option to gcc that
-# could select a multilib variant as we want the "main" sysroot, which
-# contains all variants of the C library in the case of multilib
-# toolchains.
-TARGET_CC_NO_SYSROOT=$(filter-out --sysroot=%,$(TARGET_CC))
-SYSROOT_DIR=$(shell $(TARGET_CC_NO_SYSROOT) -print-sysroot 2>/dev/null)
-ifeq ($(SYSROOT_DIR),)
-SYSROOT_DIR=$(shell readlink -f $$(LANG=C $(TARGET_CC_NO_SYSROOT) -print-file-name=libc.a) |sed -r -e 's:usr/lib/libc\.a::;')
-endif
-
-# Now, find if the toolchain specifies a sub-directory for the
-# specific architecture variant we're interested in. This is the case
-# with multilib toolchain, when the selected architecture variant is
-# not the default one. To do so, we ask the compiler by passing all
-# flags, except the --sysroot flag since we want to the compiler to
-# tell us where its original sysroot is. ARCH_SUBDIR will contain the
-# subdirectory, in the main SYSROOT_DIR, that corresponds to the
-# selected architecture variant. ARCH_SYSROOT_DIR will contain the
-# full path to this location.
-ARCH_SUBDIR=$(shell $(TARGET_CC_NO_SYSROOT) $(TARGET_CFLAGS) -print-multi-directory)
-ARCH_SYSROOT_DIR=$(SYSROOT_DIR)/$(ARCH_SUBDIR)
-
-$(STAMP_DIR)/ext-toolchain-installed:
- @echo "Checking external toolchain settings"
- $(Q)$(call check_cross_compiler_exists)
-ifeq ($(strip $(SYSROOT_DIR)),)
- @echo "External toolchain doesn't support --sysroot. Cannot use."
- exit 1
-endif
-ifeq ($(BR2_arm),y)
- $(Q)$(call check_arm_abi)
-endif
-ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
- $(Q)$(call check_cplusplus)
-endif
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
- $(Q)$(call check_uclibc,$(SYSROOT_DIR))
-else
- $(Q)$(call check_glibc,$(SYSROOT_DIR))
-endif
- mkdir -p $(TARGET_DIR)/lib
- @echo "Copy external toolchain libraries to target..."
- $(Q)for libs in $(LIB_EXTERNAL_LIBS); do \
- $(call copy_toolchain_lib_root,$(ARCH_SYSROOT_DIR),$$libs,/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
- done
- $(Q)for libs in $(USR_LIB_EXTERNAL_LIBS); do \
- $(call copy_toolchain_lib_root,$(ARCH_SYSROOT_DIR),$$libs,/usr/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
- done
- @echo "Copy external toolchain sysroot to staging..."
- $(Q)$(call copy_toolchain_sysroot,$(SYSROOT_DIR),$(ARCH_SYSROOT_DIR),$(ARCH_SUBDIR))
- # Create lib64 symbolic links if needed
- $(Q)if [ -L $(ARCH_SYSROOT_DIR)/lib64 ] ; then \
- $(call create_lib64_symlinks) ; \
- fi
- @touch $@
--- /dev/null
+#
+
+if BR2_TOOLCHAIN_EXTERNAL
+choice
+ prompt "External toolchain C library"
+ default BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+
+config BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+ bool "uClibc"
+
+config BR2_TOOLCHAIN_EXTERNAL_GLIBC
+ bool "glibc"
+
+endchoice
+
+config BR2_TOOLCHAIN_EXTERNAL_STRIP
+ bool
+ default y
+ prompt "Strip shared libraries"
+ help
+ Strip shared libraries copied from the external toolchain.
+endif
--- /dev/null
+#
+
+if BR2_TOOLCHAIN_EXTERNAL
+config BR2_TOOLCHAIN_EXTERNAL_PATH
+ string "External toolchain path"
+ default "/path/to/staging_dir/usr"
+ help
+ Path to where the external toolchain is installed.
+
+config BR2_TOOLCHAIN_EXTERNAL_PREFIX
+ string "External toolchain prefix"
+ default "$(ARCH)-linux"
+ help
+ This the the external toolchain prefix. For example:
+ armeb-unknown-linux-gnu, mipsel-unknown-linux-gnu, etc.
+
+endif
--- /dev/null
+
+#
+# This file implements the support for external toolchains, i.e
+# toolchains that have not been produced by Buildroot itself and that
+# are already available on the system on which Buildroot runs. So far,
+# we have tested this with:
+#
+# * Toolchains generated by Crosstool-NG
+# * Toolchains generated by Buildroot
+# * ARM, MIPS and PowerPC toolchains made available by
+# Codesourcery. For the MIPS toolchain, the -muclibc variant isn't
+# supported yet, only the default glibc-based variant is.
+#
+# The basic principle is the following
+#
+# 1. Perform some checks on the conformity between the toolchain
+# configuration described in the Buildroot menuconfig system, and the
+# real configuration of the external toolchain. This is for example
+# important to make sure that the Buildroot configuration system
+# knows whether the toolchain supports RPC, IPv6, locales, large
+# files, etc. Unfortunately, these things cannot be detected
+# automatically, since the value of these options (such as
+# BR2_INET_RPC) are needed at configuration time because these
+# options are used as dependencies for other options. And at
+# configuration time, we are not able to retrieve the external
+# toolchain configuration.
+#
+# 2. Copy the libraries needed at runtime to the target directory,
+# $(TARGET_DIR). Obviously, things such as the C library, the dynamic
+# loader and a few other utility libraries are needed if dynamic
+# applications are to be executed on the target system.
+#
+# 3. Copy the libraries and headers to the staging directory. This
+# will allow all further calls to gcc to be made using --sysroot
+# $(STAGING_DIR), which greatly simplifies the compilation of the
+# packages when using external toolchains. So in the end, only the
+# cross-compiler binaries remains external, all libraries and headers
+# are imported into the Buildroot tree.
+
+uclibc: dependencies $(STAMP_DIR)/ext-toolchain-installed
+
+LIB_EXTERNAL_LIBS=ld*.so libc.so libcrypt.so libdl.so libgcc_s.so libm.so libnsl.so libresolv.so librt.so libutil.so
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
+LIB_EXTERNAL_LIBS+=libnss_files.so libnss_dns.so
+endif
+
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
+USR_LIB_EXTERNAL_LIBS+=libstdc++.so
+endif
+
+ifneq ($(BR2_PTHREADS_NONE),y)
+LIB_EXTERNAL_LIBS+=libpthread.so
+ifeq ($(BR2_PACKAGE_GDB_SERVER),y)
+LIB_EXTERNAL_LIBS+=libthread_db.so
+endif # gdbserver
+endif # ! no threads
+
+# SYSROOT_DIR selection. We first try the -print-sysroot option,
+# available in gcc 4.4.x and in some Codesourcery toolchains. If this
+# option is not available, we fallback to the value of --with-sysroot
+# as visible in CROSS-gcc -v. We don't pass any option to gcc that
+# could select a multilib variant as we want the "main" sysroot, which
+# contains all variants of the C library in the case of multilib
+# toolchains.
+TARGET_CC_NO_SYSROOT=$(filter-out --sysroot=%,$(TARGET_CC))
+SYSROOT_DIR=$(shell $(TARGET_CC_NO_SYSROOT) -print-sysroot 2>/dev/null)
+ifeq ($(SYSROOT_DIR),)
+SYSROOT_DIR=$(shell readlink -f $$(LANG=C $(TARGET_CC_NO_SYSROOT) -print-file-name=libc.a) |sed -r -e 's:usr/lib/libc\.a::;')
+endif
+
+# Now, find if the toolchain specifies a sub-directory for the
+# specific architecture variant we're interested in. This is the case
+# with multilib toolchain, when the selected architecture variant is
+# not the default one. To do so, we ask the compiler by passing all
+# flags, except the --sysroot flag since we want to the compiler to
+# tell us where its original sysroot is. ARCH_SUBDIR will contain the
+# subdirectory, in the main SYSROOT_DIR, that corresponds to the
+# selected architecture variant. ARCH_SYSROOT_DIR will contain the
+# full path to this location.
+ARCH_SUBDIR=$(shell $(TARGET_CC_NO_SYSROOT) $(TARGET_CFLAGS) -print-multi-directory)
+ARCH_SYSROOT_DIR=$(SYSROOT_DIR)/$(ARCH_SUBDIR)
+
+$(STAMP_DIR)/ext-toolchain-installed:
+ @echo "Checking external toolchain settings"
+ $(Q)$(call check_cross_compiler_exists)
+ifeq ($(strip $(SYSROOT_DIR)),)
+ @echo "External toolchain doesn't support --sysroot. Cannot use."
+ exit 1
+endif
+ifeq ($(BR2_arm),y)
+ $(Q)$(call check_arm_abi)
+endif
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
+ $(Q)$(call check_cplusplus)
+endif
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
+ $(Q)$(call check_uclibc,$(SYSROOT_DIR))
+else
+ $(Q)$(call check_glibc,$(SYSROOT_DIR))
+endif
+ mkdir -p $(TARGET_DIR)/lib
+ @echo "Copy external toolchain libraries to target..."
+ $(Q)for libs in $(LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$(ARCH_SYSROOT_DIR),$$libs,/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
+ done
+ $(Q)for libs in $(USR_LIB_EXTERNAL_LIBS); do \
+ $(call copy_toolchain_lib_root,$(ARCH_SYSROOT_DIR),$$libs,/usr/lib,$(BR2_TOOLCHAIN_EXTERNAL_STRIP)); \
+ done
+ @echo "Copy external toolchain sysroot to staging..."
+ $(Q)$(call copy_toolchain_sysroot,$(SYSROOT_DIR),$(ARCH_SYSROOT_DIR),$(ARCH_SUBDIR))
+ # Create lib64 symbolic links if needed
+ $(Q)if [ -L $(ARCH_SYSROOT_DIR)/lib64 ] ; then \
+ $(call create_lib64_symlinks) ; \
+ fi
+ @touch $@
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