As a minimal test to the external toolchain, check that $(TARGET_CC)
is actually an existing executable file. That way, if the user
misconfigures the toolchain path and/or prefix, a meaningful error
message will be shown.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Use $(Q) in external toolchain support so that the user can get the
full output by passing V=1 to make, and still get a nice and clean
output by default.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Obey the BR2_INSTALL_LIBSTDCPP configuration option to copy the C++
standard library to the target. Suggested by Lionel Landwerlin
<lionel.landwerlin@openwide.fr>.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Do not copy .so symbolic links to target when not needed. Only copy
.so.X symbolic links and the library itself.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Lionel Landwerlin <lionel.landwerlin@openwide.fr> reported that using
the external toolchain support when LANG=fr_FR.UTF-8 doesn't work,
since the messages printed by gcc -v are translated in another
language, defeating the grep ^Configured test.
Therefore, as per Lionel suggestion, we force LANG=C when calling
$(TARGET_CC) -v.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
* Introduce documentation for each function of ext-tool.mk, and
document all parameters of the functions.
* Pass SYSROOT_DIR as argument to all functions that require it,
instead of computing it manually everywhere
* Use $(shell) instead of backquotes
* Check that the SYSROOT_DIR variable is not empty, which means that
the external toolchain doesn't support --sysroot. In that case,
bail out with a nice error message.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Instead of hardcoding the C library versions, just copy the version
available in $SYSROOT_DIR/lib.
Add a check on the ARM ABI configured in Buildroot with regard to the
ABI of the external toolchain provided.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
x86-64 stores libgcc_s / libstdc++ / libgcj under lib64 instead of lib,
so make sure that directory is searched as well for libraries to copy
to target.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This patch adds some checks on the external toolchains.
First, it checks that the C library selection is correct, by looking
if gcc is able to find the main C library file through the
-print-file-name option.
Then, it attempts to check if the Buildroot toolchain options match
the configuration of the toolchain :
* for glibc, it checks that IPv6, RPC, locales, wide-char, large file
support Buildroot options are enabled, since with glibc all these
features are always available (at least this is the assumption we
make) ;
* for uClibc, it checks the Buildroot options with the uClibc
configuration file in $SYSROOT_DIR/usr/include/bits/uClibc_config.h
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The current Buildroot works just well with sysrootable glibc
toolchains, using the external toolchain feature. The only thing that
needs to be customized is the set of libraries that must be compiled
to the target.
The following patch takes a simple approach to making it easier for
users to use glibc toolchains. It just adds a uClibc/glibc choice in
the external toolchain menu. Then, depending on that selection, the
configuration system will choose a sane default value for the library
files list.
The other advantage of having a uClibc/glibc choice is that in the
future, we'll be able to add checks verifying that the external
toolchain configuration matches the features selected in Buildroot (in
terms of IPv6, RPC, locales or large file support).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add BR2_ENABLE_LOCALE_PURGE / BR2_ENABLE_LOCALE_WHITELIST options to
remove unwanted locales from the target rootfs. Handy for stuff like
the gtk stack, which comes with ~25 MB locales.
Works similar to localepurge in Debian, E.G. you provide a white list
of wanted locales, and everything else is removed.
Peter Korsgaard
Thomas Petazzoni
Wade Berrier
Angus Salkeld