Allow the user to specify additional options for the target LDFLAGS.
I use this to pass the -te500v2 option to the linker, when using the
CodeSourcery toolchain for PowerPC. This chooses the correct CRT for e500 hard
float. Otherwise I get errors like
undefined reference to `_save32gpr_31'
undefined reference to `_rest32gpr_31_x'
at final link time.
[Peter: fixup, use qstrip]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
For target packages, depending on BR2_PREFER_STATIC_LIB, add the
correct combination of --{enable,disable}-{shared,static} flags to
./configure calls.
* When BR2_PREFER_STATIC_LIB is enabled, we pass --enable-static
--disable-shared.
* When BR2_PREFER_STATIC_LIB is disabled, we pass --enable-static
--enable-shared. We enable static libraries since they can still be
useful to statically link applications against some libraries
(sometimes it is useful for size reasons). Static libraries are
anyway only installed in the STAGING_DIR, so it doesn't increase in
any way the size of the TARGET_DIR.
For host packages, always pass --enable-shared and --disable-static.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Now that we use a wrapper for external toolchains (and internal ones
default to the correct setting), we no longer need to explicitly pass
sysroot/march/mtune/mabi/floating point mode in TARGET_CFLAGS.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Add a simple toolchain wrapper for external toolchains, which forces the
correct sysroot/march/mtune/floating point options needed to use it
with buildroot.
With this in place the external toolchain behaves similar to the internal
ones, and the special handling can be removed. This also means that the
toolchain is usable outside buildroot without having to pass any special
compiler flags.
Also adjust the downloadable external toolchain support to install under
HOST_DIR so it can be used after the temporary build files are removed.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Commit 7e3e8ec040 (CFLAGS/LDFLAGS: don't add -I / -L args for STAGING_DIR)
exposed a lingering libtool problem.
Unless instructed otherwise (using -L) libtool will search its built in
system path for libraries, and use those instead if found. The default
search path is '/usr/lib, /lib, /usr/local/lib', which is no good for
cross compilation.
Fix it by setting the system search path to the empty string, effectively
disabling this feature.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Now that we use sysroot for all toolchains, the explicit -I / -L arguments
in CFLAGS / LDFLAGS aren't needed anymore (And having them makes the build
quite noisy for certain packages as STAGING_DIR/include normally doesn't
exist).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Only prefix the external toolchain calls with its absolute path if
BR2_TOOLCHAIN_EXTERNAL_PATH is set, otherwise just assume it will
be available in the path.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
A few packages (like xlib_xtrans) install their .pc files here, and
upstream pkg-config defaults to searching both /usr/lib/pkgconfig and
/usr/share/pkgconfig, so add it as well.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Similar to the --with-pc-path option. It works just like the existing
PKG_CONFIG_SYSROOT_DIR environment variable, but compiled in.
The environment variable overrides this default setting if set.
This way we don't need to pass PKG_CONFIG_SYSROOT_DIR in the environment
when building for the target, and it is easier to reuse pkg-config outside
BR (E.G. for the SDK) without having to setup special environment
variables.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The CMAKETARGETS infrastructure makes adding CMake-based packages to
Buildroot easy. It uses the same set of variables as the autotools
infrastructure, except for autoreconf and libtool stuff which is not
needed. Usage: just call CMAKETARGETS instead of AUTOTARGETS.
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
A CMake toolchain-file makes it easy to develop CMake-based packages
outside of Buildroot. Just give the toolchain-file to CMake via the
-DCMAKE_TOOLCHAIN_FILE=... option.
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
As pointed out on the list, using sysroot rather than sys-root is less
confusing, as this is how it is referred to in the GCC manual.
So rather than changing BR, patch ct-ng to use sysroot instead.
The next ct-ng release will use 'sysroot' as well by default.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Simplifies code and helps us when we add SDK support in the future.
With this we no longer need to copy headers/libraries to STAGING_DIR either.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The name of the sysroot directory is arbitrary, but as ct-ng uses sys-root,
let's use that as well for consistency.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* Convert binutils to a proper autotargets package
* Add version 2.21 and drop version 2.17
* Hook up packaged binutils for target gcc
* Build tools are on HOST_DIR now so change it
* Move cross/host gcc to HOST_DIR
* Drop kludge from commit 3c77bab2ee
This is fixed in the next commit "gcc: install copies of libgcc,
libstdc++ and libgcj to the sysroot" - tested for arm & x86_64
targets.
* TARGET_CROSS now pointed to HOST_DIR too
[Peter: Config.in tweaks]
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Remove VIS optimization, it's for sparc64 and it's gone.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* Drop the BR2_STAGING_DIR option
* Hardcode STAGING_DIR to $(HOST_DIR)/usr/TUPLE/sysroot
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* Convert sstrip to a proper gentargets package
* Use openwrt svn version, it's basically the same one we used
* Change the hooks from old toolchain/sstrip to new package/sstrip
* Drop the old toolchain/sstrip directory
* sstrip for the target is now in Package -> Development
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of having BR2_GCC_CROSS_CXX and BR2_INSTALL_LIBSTDCPP, with
BR2_GCC_CROSS_CXX not being visible (and therefore being useless),
let's just keep BR2_INSTALL_LIBSTDCPP to enable C++ in the toolchain
and install C++ libraries on the target.
We also take that opportunity to make BR2_INSTALL_LIBSTDCPP an hidden
option, which is selected by an option in Buildroot toolchain support
or an option in External toolchain support, just as we did for other
toolchain features.
Some work definitely remains to be done :
- The name BR2_INSTALL_LIBSTDCPP is ugly, but we keep it for the
moment in order to avoid changing all packages.
- We should clarify the other language-related options (Fortran,
Java, Objective-C, etc.).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of letting the user define all the details of his external
toolchain, we define a set of profiles for well-known external
toolchains (CodeSourcery ones only at the moment, can easily be
extended with other toolchains).
Once a profile has been choosen, the user is offered the choice of
either letting Buildroot download and install the external toolchain,
or (as before) to tell Buildroot where the toolchain is installed on
the system.
We of course provide a "custom profile", through which the user can
configure Buildroot to use a custom external toolchain for which no
profile is available.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
* ccache is now a normal package (both for the host and the target).
* ccache option is now part of the "Build options" menu. It will
automatically build ccache for the host before building anything,
and will use it to cache builds for both host compilations and
target compilations.
* bump ccache to 3.1.3
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
When sstrip is selected it tries to strip kernel modules too.
Unfortunately this fails with a "unrecognized program segment header
size" error thus interrupting the build process.
We introduce a new $(KSTRIPCMD) strip command for this, being a regular
strip when sstrip is selected and an empty stub when not stripping.
At the same time get rid of the REMOVE_SECTION_* variables, as they are
only used once.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Closes#2857
The OBJDUMP was missing from TARGET_CONFIGURE_OPTS, this patch adds it
to the proper place in package/Makefile.in.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Default HOST_CFLAGS to -O2, so host tools (like the cross compiler) are
built with optimization by default.
Based on a patch by Will Newton <will.newton@gmail.com>.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
And all the infrastructure surrounding it. A broken sed implementation
is quite rare nowadays, as seen by the fact that the current host-sed
support has been broken for a while, so just get rid of it.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The current computation of REAL_GNU_TARGET_NAME is incorrect for
non-ARM glibc platforms because it generates something such as
mipsel-unknown-linux- as the REAL_GNU_TARGET_NAME.
So we correct this by :
* Adding "gnu" in the suffix when glibc is used, so that in the
previous case we will have mipsel-unknown-linux-gnu
* Improving the ARM_EABI code to correctly append "eabi" when glibc
is selected, so that we have arm-unknown-linux-gnueabi, and to
append "gnueabi" when uclibc is selected, so that we have
arm-unknown-linux-uclibcgnueabi. The little trick here is that LIBC
and ABI aren't completely orthogonal on ARM.
This fixes problems such as :
checking host system type... Invalid configuration
`mipsel-unknown-linux-': machine `mipsel-unknown-linux' not recognized
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Commit ed0d45fdd (Choose host/target ldconfig based on availability)
added a runtime check for a cross-ldconfig being available.
Unfortunately this checks runs too early (at package/Makefile.in parsing
time), so it always fails when using an internal toolchain as ldconfig
isn't built yet.
Fix it by moving the check to the only place it is used (target-finalize).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Decide whether to use the host or target ldconfig based on an
availability check instead of internal/external toolchain selection. An
external toolchain may very well provide an ldconfig while the host's
one may fail.
External toolchain generated by Gentoo crossdev:
$ LC_ALL=C i686-pc-linux-uclibc-ldconfig -r output/target/; echo $?
i686-pc-linux-uclibc-ldconfig: skipping /usr/lib: No such file or directory
0
vs. the host (x86_64-pc-linux-gnu) version:
$ LC_ALL=C /sbin/ldconfig -r output/target/; echo $?
/sbin/ldconfig: Can't open configuration file
output/target/etc/ld.so.conf: No such file or directory
/sbin/ldconfig: Can't open cache file /var/cache/ldconfig/aux-cache
: No such file or directory
1
Signed-off-by: Malte Starostik <m-starostik@versanet.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
TARGET_CONFIGURE_ENV defines CFLAGS, LDFLAGS, CXXFLAGS and FCFLAGS,
separatly from all other variables that are part of
TARGET_CONFIGURE_OPTS. This is useless and not consistent with the
HOST_CONFIGURE_ variables, therefore we merge TARGET_CONFIGURE_ENV
into TARGET_CONFIGURE_OPTS and fix the few users of
TARGET_CONFIGURE_ENV.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
These shouldn't be needed. Even when the cross-compiler is in
$(STAGING_DIR)/usr/bin, we anyway use an absolute path for TARGET_CC,
TARGET_LD and al.
Not having $(STAGING_DIR)/{usr/bin,bin} in the PATH will avoid having
Buildroot trying to run target binaries.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The definition of CC, LD, GCC, CPP, CXX and FC shouldn't contain the
CFLAGS/LDFLAGS/CXXFLAGS, those should be passed through the
appropriate variables.
However, the --sysroot option is a particular case here: it needs to
be part of the CC/LD/GCC/etc. definitions otherwise libtool strips it
from the CFLAGS/LDFLAGS.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The external toolchain and internal toolchain cases both need to use
the --sysroot option, and they have almost identical
LDFLAGS/CFLAGS/CXXFLAGS definition, so we can factorize these
definitions.
Moreover, the --isysroot option is implied by --sysroot so there's no
need to specify both.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When building packages for the host, the *_FOR_BUILD and *_FOR_TARGET
variables are not needed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We build host tools installed in $(HOST_DIR)/usr/bin, and some of them
rely on host libraries in $(HOST_DIR)/usr/lib. So when these host
tools are executed, they need to find the host libraries, which are
not installed in a default location.
In c1b6242fdc we tried to use
LD_LIBRARY_PATH when building target packages to solve this
problem. Unfortunately, LD_LIBRARY_PATH is not only used to find
libraries at run-time, but also at compile time. So it leads the build
of some packages, such as icu, to fail.
Therefore, in 0d1830b07d, we reverted
the LD_LIBRARY_PATH idea.
The other option to solve this problem was to hardcode a RPATH value
in the host binaries that would reference the location of host
libraries. We added this -Wl,-rpath option to HOST_CFLAGS in
6b939d40f6. Unfortunately, this caused
problems when building binutils, as reported in bug 1789 so this
change was reverted in e1a7d916e9.
Then, we tried to use -Wl,-rpath in HOST_LDFLAGS, but it was causing
problems with fakeroot not recognizing 'ld' as the GNU linker, since
the -Wl,-rpath cannot be understood by 'ld' directly, only by 'gcc'.
This commit is a new attempt at using HOST_LDFLAGS, but in this case
we modified the definition of HOST_LD to *not* contain
HOST_LDFLAGS. LDFLAGS are being set separatly. It solved the fakeroot
issue and was tested against nearly 300 packages of Buildroot.
For more details on this story, see
http://lists.busybox.net/pipermail/buildroot/2010-June/035580.htmlhttp://lists.busybox.net/pipermail/buildroot/2010-June/035581.htmlhttp://lists.busybox.net/pipermail/buildroot/2010-June/035586.htmlhttp://lists.busybox.net/pipermail/buildroot/2010-June/035609.htmlhttps://bugs.busybox.net/show_bug.cgi?id=1789
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
For the detection of the ARCH_SYSROOT_DIR (which contains the C
library variant specific to the compiler flags), we used to pass only
the -march argument instead of the full TARGET_CFLAGS. This was done
because TARGET_CFLAGS contains --sysroot, and we don't want to tell
here the compiler which sysroot to use, because we're specifically
asking the compiler where the *normal* arch sysroot directory is.
Unfortunately, there are some multilib variants that aren't decided
only based on -march, but also on -msoft-float or other compiler
flags. Therefore, we take the opposite approach: pass the full
TARGET_CFLAGS, from which we have stripped the --sysroot option.
For example, this allows a PowerPC CodeSourcery toolchain, on which
we're using the soft-float multilib variant, to work properly as an
external toolchain.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Closes#1789
This reverts commit 6b939d40f6.
The problem this commit tries to fix is valid, but the fix unfortunately
seems to cause worse problems on certain distributions/setups, so revert
for now.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
When the selected C library is glibc, the C library shouldn't be
mentionned in REAL_GNU_TARGET_NAME. In other words:
arm-unknown-linux-uclibcgnueabi must be used for uClibc
arm-unknown-linux-gnueabi must be used for glibc
This fixes the build of GDB on the target, as reported by Quotient
Remainder <quotientvremainder@gmail.com>.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
In order to solve issues of libtool trying to link target components
against host libraries, it seems that specifying -L$(STAGING_DIR)/lib
and -L$(STAGING_DIR)/usr/lib works.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In c1b6242fdc, we added
$(HOST_DIR)/usr/lib to LD_LIBRARY_PATH when building target packages,
because the build of target packages sometimes require host tools
installed in $(HOST_DIR)/usr/bin which themselves require host
libaries installed in $(HOST_DIR)/usr/lib.
Unfortunately, this solution didn't work, as libtool then tried to
link target binaries against host libraries. So $(HOST_DIR)/usr/lib
got removed from LD_LIBRARY_PATH in
0d1830b07d.
However, this meant that we went back to the previous situation, in
which host tools used during compilation of target components might
require host libraries. An example :
make[2]: Entering directory `/home/test/buildroot/output.ctng-arm-eglibc-2010-05-04-12-41-00/build/xfont_font-adobe-100dpi-1.0.1'
/home/test/buildroot/output.ctng-arm-eglibc-2010-05-04-12-41-00/host/usr/bin/mkfontdir /home/test/buildroot/output.ctng-arm-eglibc-2010-05-04-12-41-00/target/usr/share/fonts/X11/100dpi
/home/test/buildroot/output.ctng-arm-eglibc-2010-05-04-12-41-00/host/usr/bin/mkfontscale: error while loading shared libraries: libfontenc.so.1: cannot open shared object file: No such file or directory
Therefore, we try another solution: make sure that host binaries are
linked with an -rpath option, so that $(HOST_DIR)/usr/lib doesn't need
to be in LD_LIBRARY_PATH for them to find their libraries.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some packages like icu requires to be compiled against the host system
first to be able to compile against the target. This is due to the
usage of self generated binaries by the package to build itself. When
the generated tools also depends on generated libraries it is required
to add the path to these libraries in the library path
(LD_LIBRARY_PATH) especially for the configure step.
Adding $(HOST_DIR)/usr/lib to LD_LIBRARY_PATH for target compilation
might break the link step by mixing host libraries and target
binaries.
Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Instead of asking the user about the GNU target suffix, just compute
it automatically from the other configuration options.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
