Supporting multilib is much more than just passing --enable-multilib
to gcc. You have to actually build the C library several times (once
for each multilib variant you want to support in your toolchain), and
to pass MULTILIB_OPTIONS/MULTILIB_EXCEPTIONS values to gcc to let it
know the set of multilib variants you're interested in.
Since we'll probably never support multilib toolchains in Buildroot,
just get rid of this BR2_ENABLE_MULTILIB option.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This is a very advanced option, and it seems, according to
http://choices.cs.uiuc.edu/exceptions.pdf that SJLJ exceptions aren't
really interesting.
Users really interested by this can always use the
BR2_EXTRA_GCC_CONFIG_OPTIONS is they want.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Handle the internal toolchain backend mechanism the
same way we handle other backends.
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Including a bunch of Makefiles with wildcard makes it impossible to add
new toolchain backends. Avoid that by namely including needed files.
The external toolchain still needs to include all the toolchain/*/*.mk
sub-makefiles, as they are needed to build a toolchain that runs on the
target. It is to be noted that the cross-toolchain is not built in this
case, as the make-targets to build the cross-toolchain are not present
in the $(BASE_TARGETS) variable, which is later used to create the
dependency rules.
Also, the comment 'Explicit ordering' has been removed, as it is mis-
leading. It is make's responsibility to create the proper ordering based
on the dependency rules it finds in the Makefiles
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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>
The helper functions used for external toolchains may also be useful
to alternate toolchain backends (currently, the external toolchain is
the sole user).
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
libgtk2 on DirectFB is deprecated because it is no longer supported in
recent versions of Gtk. We will remove support for Gtk over DirectFB
in the next Buildroot version unless support for DirectFB in mainline
Gtk is improved in the mean time.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Those architectures don't exist anymore (Alpha, IA64) or aren't widely
used for embedded systems running Linux. Moreover, no clear Buildroot
maintainer has stepped in to maintain these architectures, so it's
better to not pretend that we support them.
The goal is to mark them as deprecated in 2010.08 and remove them in
2010.11.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This option is already part of the gcc configure options through the
BR2_CONFIGURE_BUILD_TOOLS variable (in toolchain/Makefile.in).
Additionnally, the value that was passed in the AVR32 specific case
was incorrect: it was $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/bin
instead of $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/bin.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The variable BR2_SYSROOT_STAGING_DESTDIR is no longer used, since now
the prefix for gcc is already set to the correct location.
The variable BR2_SYSROOT_TARGET_DESTDIR was already unused.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The cross binutils and cross gcc are actually going to be executed
from $(STAGING_DIR)/usr, so the correct prefix is $(STAGING_DIR)/usr
and not /usr.
This also fixes what is known as the "AVR32 toolchain build failure",
which was due to the fact that the prefix directory wasn't writable
(since it was /usr).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit solves bug #1051. The problem in this bug in that WebKit
compiles a sample C program, which uses WebKit. As WebKit is written
in C++, even though the program it built with CROSS-gcc, it must be
linked with libstdc++. However, CROSS-gcc can't find the libstdc++ has
it's hidden inside <sysroot>/<tuple>/lib.
Therefore, this commit creates a symbolic link <sysroot>/<tuple>/lib
-> <sysroot>/lib before running the CROSS-gcc installation. While this
may look like a hack, this is the solution used by both Crosstool-NG
and OpenWRT.
Moreover, with this symbolic link in place, I think bug #1741 may also
be solved. The problem in this bug is that the linker tries to link
against /lib/libc.so.0. This is due to the fact that the linker finds
a libc.so script file in the original toolchain location and not
inside the copy of the toolchain sysroot in $(STAGING_DIR). As the
script file is found outside of the current toolchain sysroot, ld
considers the script has non-sysrooted, and therefore doesn't prefix
all paths found in the script file (such as /lib/libc.so.0) with the
sysroot path, leading to the failure.
So, in details, this commit :
* Adds a BR2_ARCH_IS_64 invisible config knob that is used to know if
the arch is a 64 bits architecture or not.
* Creates the <sysroot>/<tuple>/lib -> <sysroot>/lib symbolic link,
and the <sysroot>/<tuple>/lib64 -> <sysroot>/lib64 symbolic link if
needed.
* Fixes the external toolchain sysroot detection code so that the
'sed' replacement is done *after* the readlink -f evaluation.
I have tested this by building ARM, x86 and x86_64 toolchains with
Buildroot, and then use these toolchains as external toolchains to
build a full X.org/Gtk/WebKit/Midori stack. I have also done a
complete ARM Buildroot internal toolchain build with the same full
X.org/Gtk/WebKit/Midori stack.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
uClibc does not define pthread_getattr_np(), so we need to workaround
this using a patch.
Fixes bug #1405.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
xkeyboard-config is required to install keymap files to the target,
without which the X server does not start.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
All fonts are installed in /usr/share/fonts/X11 and not in
/usr/lib/X11/fonts/ where the X server looks by default.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In order to get xkeyboard-config to build, it needs xkbcomp to be
built on the host, i.e host-xapp_xkbcomp. In turn, xapp_xkbcomp needs
xlib_libX11 and xlib_libxkbfile, which in turn need a few libraries.
This commit adds all the relevant dependencies to build everything
that is needed to get xkeyboard-config to build correctly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit bumps Cairo to 1.8.10 and updates the DirectFB support
patch. The work has been done by Lionel Landwerlin
<llandwerlin@gmail.com>.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that TARGET_CXX contains a --sysroot= option and therefore spaces,
it needs to be used with quotes.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This package include a patch for directfb support. This patch has been
proposed for upstream integration
(https://bugzilla.gnome.org/show_bug.cgi?id=614199).
Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
Just as we did to fix target-gcc, pass CXX_FOR_TARGET when building
target g++, and remove useless copies of g++ and c++.
Tested on ARM by compiling a simple C++ program using <iostream> on
the target and running it.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When doing the "make install" of target, three identical copies of gcc
are installed in $(TARGET_DIR)/usr/bin:
039adcc582c365f12ba6fc5f96098128 arm-unknown-linux-uclibcgnueabi-gcc
039adcc582c365f12ba6fc5f96098128 arm-unknown-linux-uclibcgnueabi-gcc-4.3.5
039adcc582c365f12ba6fc5f96098128 gcc
This patch removes the first two copies and keeps only the common "gcc" one.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that $(STAGING_DIR)/usr/bin is no longer in the PATH, we need to
pass the absolute paths to $(TARGET_CC) when building the target gcc
compiler.
This commit fixes the target gcc build problem reported on the list. I
have successfully been able to build a target gcc for ARM, use it to
compile a hello world application on the target and run this
application.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This variable is used only once, so let's just hardcode its value at
its call site.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Make sure flex is built before at if enabled, so it correctly detects
it and doesn't populate tgt-config.cache with invalid values.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Make sure readline is built before gnuchess if enabled, so it correctly
detects it and doesn't populate tgt-config.cache with invalid values.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Like flex, diffutils doesn't NEED gettext/libintl, but it's configure script
checks for it, so make sure those a built before diffutils, otherwise it
will populate tgt-config.cache with invalid values, breaking the build of
other packages needing it (like libglib2).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
