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>
In both internal and external toolchain cases, KERNEL_CROSS was
defined to *exactly* the same value as TARGET_CROSS. It isn't modified
anywhere, and is just used by kernel compilation and pcmcia
compilation.
Therefore, get rid of KERNEL_CROSS and use TARGET_CROSS instead.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The definition of TOOLCHAIN_DIR is the same regardless of whether
external or internal toolchains are used. Moreover, move its
definition together with all the other *_DIR definitions.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Until now, many TARGET_CFLAGS where missing when using an external
toolchain, due to how package/Makefile.in was written. Now, a lot more
definitions are common between the Buildroot toolchain case and the
external toolchain case.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This variable, together with the FIXME comment, has been added has
part of Eric Andersen's « Major buildroot facelift, step one » commit
that occured in October 2004.
Since then, no real usage has been made of OPTIMIZE_FOR_CPU, and the
initial intention has probably been lost in the memories of the
implementors.
Therefore, get rid of the variable, and just use $(ARCH) at the two
locations the variable was used.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Instead of having a configuration option BR2_GNU_BUILD_SUFFIX, let's
use config.guess to guess the build system type.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now, we just hardcode the image filenames to be rootfs.$(FSTYPE), in
the $(BINARIES_DIR).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Lay down the path to add more than two toolchain kinds:
- check the type of toolchain as:
ifeq (toolchain_buildroot,y)
blabla buildroot-specific
else ifeq (toolchain_external,y)
blabla external-specific
endif
- prefer using positive checks, a-la:
ifeq (foo,y)
instead of:
ifneq (bar,y)
(where foo and bar are mutually exclusive)
- have the toolchain_buildroot case always appear first
- gettext is handled differently, because we want to add an option
only if not using the buildroot toolchain, hence we use ifneq.
Signed-off-by: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
Acked-By: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Now that we build Perl modules in $(HOST_DIR), PERLLIB must be defined
to $(HOST_DIR)/usr/lib/perl.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
During the compilation of target or host packages, host tools might be
used, and in turn, they might use host libraries installed in
$(HOST_DIR)/usr/lib. Therefore, we pass a LD_LIBRARY_PATH variable
when building packages.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This new infrastructure allows to write simpler .mk files for packages
not using the autotools as their build system, by factorizing many
common steps (download, extract, patching), and will more easily allow
Buildroot-wide changes in how the packages are handled.
The main macro is called GENTARGETS and works similarly to the
AUTOTARGETS macro that already exists for autotools-based
packages. However, the set of variables to be defined before calling
the macro is different. Refer to the documentation for details.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Those are already in TARGET_CONFIGURE_ARGS. Also get rid of unused
BR2_AC_CV_FUNC_MALLOC_0_NONNULL variable.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
hard/softfloat is just one of the many config options, and it only
clutters the filenames.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
To reflect the new output directory hierachy rename the Makefile variable
TOOL_BUILD_DIR to TOOLCHAIN_DIR.
Signed-off-by: Michael Roth <mroth@nessie.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
PKG_CONFIG_PATH adds a path to the pkg-config search path, but this is not
enough when we are building host tools - the host pkg-config default path
is still used, and this will pick up .pc files in the staging_dir tree.
PKG_CONFIG_LIBDIR overrides the pkg-config default path and ensures only
host .pc files are found. This fixes a pango build failure when building
for the host with cairo PNG support enabled.
Signed-off-by: Will Newton <will.newton@gmail.com>
In the output directory, we now have
- build/ where all the packages are built
- images/ where the final kernel and rootfs images are stored
- staging/ the staging directory (containing the development files
and libraries compiled for the target)
- target/ which contains the target root filesystem
- host/ which contains all the host programs
- stamps/ which contains the stamps files
Therefore, the build_ARCH and toolchain_build_ARCH have been
removed. People willing to use the same Buildroot sources to compile
for different architectures are invited to use the O= command line
option for out-of-tree compilation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In an attempt to disable the compilation and installation of
documentation of gtk packages, a DISABLE_DOCUMENTATION variable
containing --without-html-dir has been added to
package/Makefile.in. This variable is used by
package/Makefile.autotools.in so that --without-html-dir is in effect
passed to all autotools-based packaging relying on the
Makefile.autotools.in infrastructure.
Unfortunately, --without-html-dir doesn't work. It leads libglib2
./configure script to think that HTML_DIR is "no", which leads to the
installation of the documentation in $(STAGING_DIR)no (yes, with the
"no" suffix at the end). The issue is that --with-html-dir is not an
enable/disable type of option, it's an option that only allows to pass
a PATH for documentation installation.
As we don't want the documentation to be installed in this odd
$(STAGING_DIR)no directory, we simply get rid of this option.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The AUTO_CONFIGURE_OPTS is not used anywhere in the tree. autoconf
based packages should used the Makefile.autotools.in machinery
instead.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The XSERVER variable used to be defined by package/Makefile.in because
the X server package name was different depending on the type of X
server that was choosen. Nowadays, the name of the package is always
xserver_xorg-server, so there's no point in having this XSERVER
intermediate variable.
This patch makes all packages use xserver_xorg-server directly as a
dependency, and removes the XSERVER variable from package/Makefile.in.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The option BR2_PACKAGE_TINY, BR2_PACKAGE_XORG and BR2_PACKAGE_XGGI
don't exist, so do not use them to find the value of the $(XSERVER)
variable.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since the move of many host binaries to $(HOST_DIR), the TARGET_PATH
for internal toolchain had been changed to include $(HOST_DIR)/bin and
$(HOST_DIR)/usr/bin, but this change was not reflected to the
TARGET_PATH used in external toolchain configuration. This patches
fixes this.
We also remove $(STAGING_DIR)/bin and $(STAGING_DIR)/usr/bin from the
TARGET_PATH in external toolchain configuration, since the STAGING_DIR
is not supposed to contain host binaries.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some configure scripts seems to ignore CXX settings if it is set to
the empty string, and goes back to the default (<arch>-linux-g++),
so use false instead, as that will loudly break the build if the
C++ compiler is ever used.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Change the definition of TARGET_LDFLAGS to use --sysroot
$(STAGING_DIR) instead of -L$(STAGING_DIR)/lib
-L$(STAGING_DIR)/usr/lib. It fixes the following failure while trying
to build mtd-utils :
/usr/local/xtools/arm-unknown-linux-uclibcgnueabi/bin/arm-unknown-linux-uclibcgnueabi-gcc -L/home/thomas/local/buildroot-output/build_arm/staging_dir/lib -L/home/thomas/local/buildroot-output/build_arm/staging_dir/usr/lib -o /home/thomas/local/buildroot-output/build_arm/mtd_orig/flash_eraseall /home/thomas/local/buildroot-output/build_arm/mtd_orig/crc32.o /home/thomas/local/buildroot-output/build_arm/mtd_orig/flash_eraseall.o
/usr/local/xtools/arm-unknown-linux-uclibcgnueabi/lib/gcc/arm-unknown-linux-uclibcgnueabi/4.3.2/../../../../arm-unknown-linux-uclibcgnueabi/bin/ld: cannot find /lib/libc.so.0
collect2: ld returned 1 exit status
make[1]: *** [/home/thomas/local/buildroot-output/build_arm/mtd_orig/flash_eraseall] Error 1
At the same time, simplify the definition of TARGET_CFLAGS, because
the -I$(STAGING_DIR)/include -I$(STAGING_DIR)/usr/include
-I$(TOOLCHAIN_EXTERNAL_PATH)/$(TOOLCHAIN_EXTERNAL_PREFIX)/include are
no longer necessary since we sysroot the toolchain in $(SYSROOT_DIR).
This patch has no effect on non-external toolchain builds.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Move stamp (dependency) files outside the (version specific) source
directories, so other packages can hardcode dependencies on them instead
of having to use <PACKAGE>_VERSION variables.
This is important as the variables in the make rules are evaluated when
the rules is seen, which might be before the dependent makefile is parsed
(and hence <PACKAGE>_VERSION variable is known, screwing up stuff.
The downside of this is that the package isn't automatically rebuilt
when the version changes (E.G. by a svn update) and you now also have to
remove the stamp files next to $(BUILD_DIR)/<PACKAGE>-* to force a rebuild.
This matches upstream tarball, doesn't screw up existing .config's with
BR2_PACKAGE_PKGCONFIG and makes sure the patch gets applied for target
compilation.
gcc < 4.2.0 doesn't support -Wno-overlength-stings, but gcc-4.3.x configure
fails to detect that, breaking the build.
Work around it by detecting the host gcc version (and store in HOSTCC_VERSION)
and set the proper configure variables for gcc < 4.2.0.
The VFP is only available for a few ARM CPUs at the moment,
so this breaks the liboil build.
A patch is available upstream which only enables "-mfpu=vfp"
if "--enable-vfp" is given to "configure".
Autotools needs to be run for liboil for this to take effect.
A new configuration BR2_VFP_FLOAT is added to allow enabling vfp.
If this is "yes", then "-mfpu=vfp" is added to CFLAGS.
TARGET_PATH didn't contain $(STAGING_DIR)/usr/bin, which means that
programs installed in $(STAGING_DIR)/usr/bin were not considered for
execution during Buildroot build process. This was a problem with host
automake/autoconf/libtool, which could not be found.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
* In toolchain/external-toolchain/ext-tool.mk, copy the contents of
the sysroot directory to the staging dir.
* In package/Makefile.in, add a --sysroot CFLAGS pointing to the
staging dir
* Remove the CFLAGS and LDFLAGS definition from
TARGET_CONFIGURE_OPTS. I haven't investigated exactly why, but with
these options, DirectFB fails to build because it cannot find
PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, even if DirectFB's Makefile
properly sets -D_GNU_SOURCE.
I have already sent this patch on December, 2nd to the mailing-list,
but got no feedback. So let's commit and see what happens :-)
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The following changes allow for use of a central configure cache
file. This speeds up configuration of packages.
Its use is configurable at the top level (BR2_CONFIG_CACHE - default n).
Old style makefiles can use it if they use the following MACRO in makefiles:
$(AUTO_CONFIGURE_TARGET) see my change to directfb.mk.
New style Autotools.in will use it if you set the global option.
However you can enable the global option and on a per package overrule it by doing
the following: $(PKGNAME)_USE_CONFIG_CACHE = NO see fontconfig.mk for an example
of this.
Finally I have removed a few config variable settings which indicated no CXX compiler
as this is wrong and breaks the build when using this central cache.
Config.in | 8 ++++++++
package/Makefile.autotools.in | 5 ++++-
package/Makefile.in | 28 +++++++++++++++++++++++++++-
package/atk/atk.mk | 2 +-
package/directfb/directfb.mk | 7 +------
package/fontconfig/fontconfig.mk | 3 +++
package/libglib2/libglib2.mk | 2 +-
package/libgtk2/libgtk2.mk | 1 -
8 files changed, 45 insertions(+), 11 deletions(-)
I would appreciate feedback on this change (I have been testing for 2-3 weeks)
But I can never test all cases! If you enable the BR2_CONFIG_CACHE option some
Makefile.autotools.in based packages may now break - I cannot build them all.
In this case you may need to remove config options that are being hardcoded all
over the place (like gtk saying we have 2 CXX compiler) or disable the use
of CONFIG CACHE file like I have done in fontconfig.
I can build all packages required to get WebKit on DirectFB up and running
and it runs fine.
I will try to resolve any issues this creates as fast as I can.
Signed-off-by: Daniel Laird <daniel.j.laird@nxp.com>
This patch is a new version of a patch already sent several times on
the mailing-list, committed and reverted a few times by Daniel Laird,
due to several imperfections. This version is a new try at finding a
solution that works for everybody. Hopefully it'll work :-)
The original problem is that external toolchain builds failed because
packages couldn't find their dependent libraries at configure time and
could not be linked with them. To fix these two problems, two things
are added:
* The TARGET_LDFLAGS variable was exposed as LDFLAGS at ./configure
time thanks to TARGET_CONFIGURE_OPTS. The TARGET_LDFLAGS variable
contains -L options with the path in the STAGING_DIR for the
libraries. It allows ./configure scripts to properly compile the
small test programs testing whether a dependency is properly
installed.
* The TARGET_CFLAGS contains a new -Wl,--rpath-link option for both
$(STAGING_DIR)/lib and $(STAGING_DIR)/usr/lib. It allows library
depending on other libraries to link properly. The TARGET_CFLAGS is
exposed as CFLAGS in TARGET_CONFIGURE_OPTS.
This new version fixes a problem encountered by hartleys
<hartleys@visionengravers.com> when building the kernel. The problem
was that the -Wl,--rpath-link options were added to LDFLAGS, while
there are options for the C compiler, not the ld linker. Moving them
to CFLAGS seems to fix the issue.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Revert the rpath patch, it looked good up until someone tried
to build a kernel as well. This seems to break as a result.
Will post a new patch soon and see how that goes..
Signed-off-by: Daniel Laird <daniel.j.laird@nxp.com>
Apply the patch I posted some time ago that fixes
rpath issues with external toolchains.
Has been tested by users of buildroot and feedback looks good.
Signed-off-by: Thomas Petazzoni
Signed-off-by: Daniel Laird <daniel.j.laird@nxp.com>
As per various email discussions add -rpath-link
to the LDFLAGS.
This definately fixes a few issues for Thomas and myself
Any objections and it can be pulled again.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...>
Signed-off-by: Daniel Laird <daniel.j.laird@nxp.com>
Upgrade to pkgconfig 0.23 which has native sysroot support (buggy,
but easily fixable), which allows us to get rid of pkgconfig-filter.sh.
At the same time cleanup the makefile.
Packages that need to pass additional CFLAGS in their .mk have to do something
like this: ...configure $(foreach i,$(foo_CFLAGS),CFLAGS+=$$i) --prefix=...
Will need to try to copy eventual pre-existing project-specific deps back
to package/config in order not to mess up the corresponding timestamps (to avoid superfluous rebuilds)..
quite work yet for me, but this clearly is a huge project and not having it
quite work on the first pass is hardly unexpected. We definately want this
stuff in buildroot.
=========================================================
The purpose of the BSP patch is to allow building
several boards inside the same buildroot tree.
For this to work, each board has to have its
own "$(TARGET_DIR)" and all *configurable* packages
must be rebuilt for each board.
They are now built in the "$(PROJECT_BUILD_DIR)"
All non configurable packages can and should still
be built in the "$(BUILD_DIR)".
If a package is built for one board, then when
you build for a second board of the same architecture
the build becomes a simple copy of the resulting
binaries.
-----
Define BR2_PROJECT which will be used as the selector
between different boards. Note that BR2_PROJECT allow
you to build multiple root file systems for a single
board, and should not be confused with BR2_BOARD_NAME
which relates to the H/W.
-----
Define PROJECT_BUILD_DIR as "PROJECT_BUILD_DIR/$(PROJECT)"
Define BINARIES_DIR as "binaries/$(PROJECT)"
Define TARGET_DIR as "$(PROJECT_BUILD_DIR)/root"
(some prefix/postfix may apply)
Resulting images are stored in "$(BINARIES_DIR)"
-----
Define a few new environment variables in Makefile
PROJECT: Stripped BR2_PROJECT
DATE: Date of build in YYYY-MM-DD format
HOSTNAME: Stripped BR2_HOSTNAME => /etc/hostname
BANNER: Stripped BR2_BANNER => /etc/issue
Linux and Busybox will be built in $(PROJECT_BUILD_DIR)
More patches will be needed later to ensure all
configurable packages are built in this directory.
