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Currently, when we need to do a conditional on the type of C library
used, we need to take into account the three toolchain backends. As we
are going to add eglibc support to the Buildroot toolchain backend, it
would become even uglier, so this patch introduces two new hidden
options: BR2_TOOLCHAIN_USES_UCLIBC and BR2_TOOLCHAIN_USES_GLIBC, that
exist regardless of the toolchain backend. The entire Buildroot code
base is converted to use those options.
Note that we have intentionally created only one option
(BR2_TOOLCHAIN_USES_GLIBC) for both glibc and eglibc, since they are
essentially the same, as far as Buildroot is concerned.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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elfutils contains a call to wmempcpy, which is only available when the
toolchain has wchar support, so add the dependency.
Also display a comment if the toolchain dependencies are not met.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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We finally have all the pieces needed to allow the build of elfutils
on uClibc. Only the libraries can be built, the programs remain
available only for glibc/eglibc toolchains.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Building the po/ directory complains that the scripts in there have
been generated with gettext 0.17, while we use gettext 0.18 in
Buildroot. Since we don't care that much about po files anyway, just
disable the build of this directory.
Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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The fts_*() functions are optional in uClibc, and not compiled in our
default configuration. The best option would be to migrate this
elfutils code to the nftw family of functions, but it requires quite
some work.
So we have several options here:
*) Enable fts_*() functions in our default uClibc configuration. Not
nice since only one package needs them (the help text of uClibc
for fts_*() functions explicitly mention that they have been added
to be able to build elfutils).
*) Use gnulib, but it is quite heavy to setup, requires modifications
to configure.ac, and other things.
*) Copy the fts function from uClibc into elfutils source code. This
is the solution used below. uClibc is LGPL, and elfutils is
LGPL/GPL, so there should not be any licensing issue.
Of course, the fts_*() functions are only built if they are not
already provided by the C library.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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elfutils is annoying: it needs gettext even if locale support is
disabled...
Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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elfutils unconditionally uses off64_t for example, so largefile is
needed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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elfutils uses some strange internal alias of memcpy in glibc, so
workaround this when building with uClibc.
Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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elfutils uses the argp family of functions, that isn't available in
uClibc. So, we add a dependency on argp-standalone if building with
uClibc, and modify elfutils source code to link against argp if
needed.
Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Add and use a --{enable,disable}-progs configuration option to
selectively enable or disable the elfutils programs. Generally, on an
embedded system, the libraries are more useful than the programs, and
being able to not build the programs will make it easier to build the
elfutils libraries on uClibc.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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This patch adds a a package for elfutils. For now, the package is
glibc specific, as adding uClibc support for this package is quite
tedious, and will therefore be done through followup patches.
Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.
Signed-off-by: Stefan Fröberg <stefan.froberg@petroprogram.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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