Files
poky/meta/recipes-devtools/gcc/gcc-configure-sdk.inc
Khem Raj af9c75c8f5 gcc-4.6: Let G++ relocate gxx-include-dir when using --sysroot option
Currently we have a problem in our cross compiler since we use
/usr/include/c++ to be default gxx-include-dir and then expect
the patch we did to do the relocation w.r.t. sysroot however it
does not quite work so and we end up gxx-include-dirs not respecting
sysroot. A small test case would be

tst-unique4.cc

and it would fails like

tst-unique4.cc:1:18: fatal error: cstdio: No such file or directory
compilation terminated.

weather we use --sysroot or not it does not matter

arm-oe-linux-gnueabi-g++ -S tst-unique4.cc
--sysroot=/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm

failed in same way.

so we redo the GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch based on upstream
submitted patch which tries to relocate the gxx-include-dir and to
achieve the relocation it has to be specified w.r.t to --with-sysroot
directory. e.g.

--with-sysroot=${SYSROOT}
--with-gxx-include-dir=${SYSROOT}/usr/include/c++

if we configure gcc like above then it becomes relocatable when
we run the compiler and specify --sysroot=<blah> then g++ will search
for gxx-headers under <blah>/usr/include/c++

if sysroot is not defined then it will use the default sysroot
and gxx-include-dir will be w.r.t. default sysroot.

Tested on qemuarm

/arm-oe-linux-gnueabi-g++ -S tst-unique4.cc
--sysroot=/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm
-v
...
 /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm/usr/include/c++
 /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm/usr/include/c++/arm-oe-linux-gnueabi
 /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm/usr/include/c++/backward
...

and if I now change --sysroot to something else

/arm-oe-linux-gnueabi-g++ -S tst-unique4.cc
--sysroot=/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm4
-v
...

ignoring nonexistent directory
"/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm4/usr/include/c++"
ignoring nonexistent directory
"/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm4/usr/include/c++/arm-oe-linux-gnueabi"
ignoring nonexistent directory
"/home/kraj/work/angstrom/sources/openembedded-core/build/tmp-eglibc/sysroots/qemuarm4/usr/include/c++/backward"
...

See now its looking for them in 'qemuarm4' sysroot

(From OE-Core rev: 28b772e42a20faebe1b4f415d28b42b7e0a424fb)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2011-12-19 09:29:18 +00:00

49 lines
2.0 KiB
PHP

require gcc-configure-common.inc
# The two lines below conflict, this needs fixing - RP
USE_NLS = '${@base_conditional( "TARGET_OS", "linux-uclibc", "no", "", d )}'
USE_NLS = '${@base_conditional( "TARGET_OS", "linux-uclibceabi", "no", "", d )}'
EXTRA_OECONF_PATHS = "--with-local-prefix=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS}${target_exec_prefix} \
--with-gxx-include-dir=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS}${target_includedir}/c++ \
--with-build-time-tools=${STAGING_DIR_NATIVE}${prefix_native}/${TARGET_SYS}/bin \
--with-sysroot=${SDKPATH}/sysroots/${TUNE_PKGARCH}${TARGET_VENDOR}-${TARGET_OS} \
--with-build-sysroot=${STAGING_DIR_TARGET}"
#
# gcc-cross looks and finds these in ${exec_prefix} but we're not so lucky
# for the sdk. Hardcoding the paths ensures the build doesn't go canadian or worse.
#
export AR_FOR_TARGET = "${TARGET_PREFIX}ar"
export AS_FOR_TARGET = "${TARGET_PREFIX}as"
export DLLTOOL_FOR_TARGET = "${TARGET_PREFIX}dlltool"
export CC_FOR_TARGET = "${TARGET_PREFIX}gcc"
export CXX_FOR_TARGET = "${TARGET_PREFIX}g++"
export LD_FOR_TARGET = "${TARGET_PREFIX}ld"
export LIPO_FOR_TARGET = "${TARGET_PREFIX}lipo"
export NM_FOR_TARGET = "${TARGET_PREFIX}nm"
export OBJDUMP_FOR_TARGET = "${TARGET_PREFIX}objdump"
export RANLIB_FOR_TARGET = "${TARGET_PREFIX}ranlib"
export STRIP_FOR_TARGET = "${TARGET_PREFIX}strip"
export WINDRES_FOR_TARGET = "${TARGET_PREFIX}windres"
#
# We need to override this and make sure the compiler can find staging
#
export ARCH_FLAGS_FOR_TARGET = "--sysroot=${STAGING_DIR_TARGET}"
do_configure () {
export CC_FOR_BUILD="${BUILD_CC}"
export CXX_FOR_BUILD="${BUILD_CXX}"
export CFLAGS_FOR_BUILD="${BUILD_CFLAGS}"
export CPPFLAGS_FOR_BUILD="${BUILD_CPPFLAGS}"
export CXXFLAGS_FOR_BUILD="${BUILD_CXXFLAGS}"
export LDFLAGS_FOR_BUILD="${BUILD_LDFLAGS}"
(cd ${S} && gnu-configize) || die "failure running gnu-configize"
oe_runconf
}
do_compile () {
oe_runmake all-host all-target-libgcc
}