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The threading model shall be be set in the .config file.
Also, offer the choice between 'old/stable' and 'new' linuxthreads.
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Some components have configuration options that can depend on
generic options, so they should go below those.
uClibc for example:
- has its own options (wchar...)
- uses the generic options (threads...)
- if linuxthreads chosen, offers two impls
So we need to be able to split the components options in 2,
one part that is above the generic options, and one part that
ends up below the generic options.
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Optionally configure to compile gcc-internal libs with -Os.
yann.morin.1998@anciens.enib.fr:
Rename the config options, it is in the GCC /namespace/.
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This patch adds support for installing the gcc test suite. A helper
Makefile is provided for building and running the gcc tests.
The default configuration runs all gcc tests and requires automatic
ssh/scp login access to a networked target board. See README for
more details.
Note: Current feature is tested with the powerpc-unknown-linux-gnu
sample but it should work with others as well.
Signed-off-by: Martin Lund <mgl@doredevelopment.dk>
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Add 4.4.4 and forward-port patchset from 4.4.3
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starting with 4.5.0, gcc requires libelf.
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Those old versions are not suitable for use by gcc.
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Insight seems to be very slow to follow up on mainstreram gdb.
Latest snapshots are more than 6 months old.
Moreover, I don't have time to maintain insight support in crosstool-NG;
and, because I don't use it, I am unable to find any breakage.
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It is now possible to built static versions of the companion libraries,
so we can now build a static cross-gdb using the complibs.
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MPFR can't cope with GMP > 4.x.y so hide it behind EXPERIMENTAL
until we fix MPFR
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For uClibc, the name of the Blackfin architecture is 'bfin'. Actually,
the naming of the architecture is quite messy: for toolchain tuples
and uClibc, it's bfin, but for the kernel, it's blackfin. We've
arbitraly choosen to name it "blackfin" in Crosstool-NG.
Add Blackfin-related uClibc patch to fix a build failure related to
fork() being used in unistd/daemon.c.
Yann E. MORIN:
Apply the patch to the kernel/linux build script to use 'linux'
in the noMMU tuples. See:
http://sourceware.org/ml/crossgcc/2010-04/msg00010.html
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When building a baremetal cross compiler I want to be able to select
the elf format and not be forced to build the elf2flt package.
Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
[Yann E. MORIN: tweak the commit message]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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Blackfin uses FD_PIC ELF format to provide shared libraries on a
non-MMU architecture.
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Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
[Yann E. MORIN: mark it EXPERIMENTAL]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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If threads are disabled in libc, we don't want to enable them in the
final compiler. Doing so pass the configure stage, but fails latter on
a missing <pthread.h>.
Moreover, we don't want to build libgomp if threads are disabled; its
configure script would fails anyway.
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
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In backend mode, allow the upper-layer build system to force the
C library selection.
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In backend mode, only enforce the arch and/or kernel selection if the
upper-layer build system effectively forces the selection.
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GMP : 4.3.2, 5.0.1*
CLooG/PPL: 0.15.8 0.15.9
libelf : 0.8.13
*: patch series added
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Always enclose the sourced file between double-quotes (purely for
consistency; enclosing or not are both allowed by the kconfig language).
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When used as a backend, it is the responsibility of the upper-layer build
system to set the target architecture and kernel.
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When used as a backend, it does not make sense to debug crosstool-NG,
so hide the option.
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Hide the prompts for some behavioral options, for which the upper-layer build
system is responsible for:
- parallel jobs and maximum load
- use pipes
- use custom shell
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When crosstool-NG is used as a backend, it is the responsibility of the
upper-layer build-system to properly set paths, so we just hide the
prompts in this case.
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ELFkickers are looong dead and unmaintained, and the sstrip
from buildroot is working fine *and* is maintained.
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No point building sstrip is the target is not ELF.
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sstrip is now alone in its 'tools' menu, and we will probably never gain
any other 'tool'. Besides, sstrip is just strip, but a little bit more
agressive, so it deserves going to the 'binary utilities' menu.
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We'll need to differentiate gdb 7.0 or later, from gdb prior to 7.0
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GMP and MPFR are optional for gdb, so offer a config option.
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It is currently impossible to reliably build static GMP/MPFR libs,
so we can't build a static native gdb using them, obviously.
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This implies hidding entries for:
- binutils libraries
- dmalloc
- duma
- native gdb
- ltrace
- strace
- sstrip
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When acting as a backend for a build-system, we should not build
any application that runs on the target, that is:
- no native gdb
- no companion libraries
- no binutils libraries
- no debug tools (save for gdbserver)
- ...
Here, we simply prepare the (hidden) config option that will detect
that we are acting as a back-end.
Update doc accordingly.
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Yann E. MORIN"
Titus von Boxberg
Martin Lund
Thomas Petazzoni
Arnaud Lacombe