config: don't require .config.2 to save a sample

Samples should contain kconfig-parsable definitions, not script variables.
.config.2 contains bash arrays, which is definitely not kconfig-safe...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

debug/gdb: don;t install sample gdbinit for old versions

Only starting with gdb-7 does installing the gdbinit sample makes senses.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

scripts/functions: force extract folder to archive basename

Some archives like those of the 2011.07 revisions of Linaro GCC contain a folder
name different from the archive basename, which leads to errors afterwards, e.g.
when patching. E.g.:
gcc-linaro-4.5-2011.07.tar.bz2 extracts to gcc-linaro-4.5-2011.07-0/

This patch changes CT_Extract() to force the extraction of all archives to a
folder named like the archive basename. E.g.:
gcc-linaro-4.5-2011.07.tar.bz2 now extracts to gcc-linaro-4.5-2011.07/

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>

scripts/libc: do not build add-ons by default

Currently, no --enable-add-ons option is passed to libc configure when
"$(do_libc_add_ons_list ,)" is empty, which makes configure automatically search
for present add-ons. In that case, all present add-ons are built, although
no add-on was selected by the user in the config. Moreover, this can make the
configure fail if some non-standard add-ons like eglibc-localedef are present.

This behavior also leads to an inconsistency from a user point of view between
the following cases:
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS="none" in the config,
which makes "$(do_libc_add_ons_list ,)" return "", so all present add-ons
are built.
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS!="none" in the
config, which makes "$(do_libc_add_ons_list ,)" return the add-on supporting
the chosen threading implementation, e.g. "nptl", so only this add-on is
built.

This patch disables the building of all add-ons in that case.

It is still possible to build all present add-ons by adding --enable-add-ons to
LIBC_GLIBC_EXTRA_CONFIG_ARRAY.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>

cc/gcc: bump Linaro GCC revisions to 2011.07

This patch bumps the Linaro GCC revisions to 2011.07 when applicable.
Note that the `-0' suffix has been removed from the Linaro versioning scheme
beginning with this version.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>

docs: add signed-off-by line to sample commit message

Signed-off-by: Titus von Boxberg <titus@v9g.de>

debug/gdb: install gdbinit sample file

gdb needs to know where to find the libstdc++ helper python script
to do, well, whatever it has to do with it...

We can't install that in the user's ~/.gdbinit, it's too complex to
handle all the cases. Moreover, if the user is using more than one
toolchain, we can't put all that stuff in there...

Just provide a sample config file the user can adapt to his/her
own needs.

Thanks go to Khem RAJ for providing such a hint:
http://sourceware.org/ml/crossgcc/2011-07/msg00026.html

Reported-by: ANDY KENNEDY <ANDY.KENNEDY@adtran.com>
CC: Khem Raj <raj.khem@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

docs: update table of content for known issues

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

kernel/linux: add 3.0 Woohoo! \o/

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

kernel/linux: prepare to handle 3.x

The place to get 3.x has changed; the version scheme has changed.

No need to be overkill, just support 3.x; 4.x is not even dreamt of.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>