| Commit message (Collapse) | Author | Age | Files | Lines |
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Multilib toolchains provide different versions of the base libraries
for different architecture variants. For example, the ARM Codesourcery
toolchain provides base libraries for ARMv5 (default), ARMv4t and
Thumb2.
Depending on the -march= argument passed to gcc, the sysroot used by
the compiler is therefore different. This means that the sysroot
location in CROSS-gcc -v cannot be used. Instead, we must use
CROSS-gcc -print-sysroot when available and fall back to the old way
if unavailable.
Moreover, we cannot simply copy the full sysroot as we used to do,
because the sysroot organization of multilib toolchain is more
complicated. In Codesourcery toolchains, we have :
/
etc -- for ARMv5
lib -- for ARMv5
sbin -- for ARMv5
usr -- for ARMv5 (includes headers)
armv4t
etc -- for ARMv4t
lib -- for ARMv4t
sbin -- for ARMv4t
usr -- for ARMv4t (no headers!)
thumb2
etc -- for Thumb2
lib -- for Thumb2
sbin -- for Thumb2
usr -- for Thumb2 (no headers!)
So we have the default ARMv5 architecture variant that is installed in
the main directory, and we have subdirectories for the ARMv4t and
Thumb2 architecture variants.
Copying the full sysroot to the staging directory doesn't work. All
our packages are based on the fact that they should install libraries
in staging/usr/lib. But if ARMv4t is used, the compiler would only
look in staging/armv4t/usr/lib for libraries (even when overriding the
sysroot with the --sysroot option, the multilib compiler suffixes the
sysroot directory with the architecture variant if it matches a
recognized one).
Therefore, we have to copy only the sysroot that we are interested
in. This is rendered a little bit complicated by the fact that the
armv4t and thumb2 sysroot do not contain the headers since they are
shared with the armv5 sysroot.
So, this patch :
* Modifies how we compute SYSROOT_DIR in order to use -print-sysroot
if it exists. SYSROOT_DIR contains the location of the main sysroot
directory, i.e the sysroot for the default architecture variant.
* Defines ARCH_SUBDIR as the subdirectory in the main sysroot for the
currently selected architecture variant (in our case, it can be
".", "armv4t" or "thumb2"). ARCH_SYSROOT_DIR is defined as the full
path to the sysroot of the currently selected architecture variant.
* Modifies copy_toolchain_lib_root (which copies a library to the
target/ directory) so that libraries are taken from
ARCH_SYSROOT_DIR instead of SYSROOT_DIR. This ensures that
libraries for the correct architecture variant are properly copied
to the target.
* Modifies copy_toolchain_sysroot (which copies the sysroot to the
staging/ directory), so that it copies the contents of
ARCH_SYSROOT_DIR, and if needed, adds the headers from the main
sysroot directory and a symbolic link (armv4t -> . or thumb2 -> .)
to make the compiler believe that its sysroot is really in armv4t/
or thumb2/.
Tested with Codesourcery 2009q1 ARM toolchain, Crosstool-NG ARM glibc
and ARM uClibc toolchains.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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The copy_toolchain_lib_root function was making the assumption that
all libraries were stored inside the /lib directory of the sysroot
directory. However, this isn't true for certain toolchains,
particularly for the libstdc++ library.
The function is therefore reworked to find the library and its related
symlink either in /lib or /usr/lib in the sysroot, and copies it at
the same location in the target directory.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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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>
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Closes #1567
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Thomas Brandstetter <thomas.brandstetter@me.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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[Peter: lzo needed as well]
Signed-off-by: Will Wagner <will_wagner@carallon.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Will Wagner <will_wagner@carallon.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Also cleanup autotools symbols and add libatomic_ops dependency
for Intel part.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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git://git.busybox.net/~tpetazzoni/git/buildroot
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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These options are part of the default set of options passed to
./configure by the AUTOTARGETS infrastructure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Since the introduction of the AUTOTARGETS infrastructure, the dummy
example is no longer correct. Moreover, the documentation now contains
extensive details about how new packages should be added, either using
the GENTARGETS or the AUTOTARGETS infrastructures.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Bumping the version from 2.5.9 to 2.6 allows to avoid adding a patch
(merged upstream) to fix patch's Makefile install target.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Since BR2_RECENT was enabled by default, we do not want entries marked
BR2_RECENT (and thus appearing by default in Buildroot) to disappear.
Therefore, all the entries marked BR2_RECENT are converted as
non-deprecated. We can later decide, on a per-entry basis, to add
BR2_DEPRECATED to some of them. But at least, this commit doesn't
change the default current behaviour of Buildroot.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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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>
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It seems that there was an intention to add BR2_ENABLE_OPENMP someday,
but it was in June 2007 (commit
c81807a9d71fba9f35eeb7e3f3b56bda4b2e0edd) and since then, nothing
occured. Therefore, get rid of this code, and just pass
--disable-openmp to gettext to keep the current behaviour.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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The option is marked broken since october 2009, and even the uClibc
configuration help text says that using pregenerated locales is highly
discouraged.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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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>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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