[Buildroot] [PATCH 1/3 v2] toolchain/external: add Linaro ARM 2014.11 ARMv7 EABIhf

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Sun Mar 29 11:11:43 UTC 2015

Dear Yann E. MORIN,

On Sat, 28 Mar 2015 16:27:10 +0100, Yann E. MORIN wrote:

>   - it is available only for x86_64 hosts
>   - the toolchain is split in three parts:
>     - the main archive, with the tools and a minimalist sysroot with
>       just the strictly required stuff (e.g. just the C library and most
>       libs as static libs, i.e. no shared libs but libc.so)
>     - a secondary archive, with the complete sysroot , duplicationg most
>       previously existing files in the minimal sysroot, above
>     - a tertiary archive, with the 'runtime' content (whatever that
>       could mean...); that one seems completely unnecessary for
>       Buildroot.
>   - the sys/types.h headers from the main sysroot is correct, while the
>     one from the secondary archive (thus overwriting the main one) is
>     broken, as it removes the definition of caddr_t (why? WHY?).

Can you report this bug to the Linaro folks?

>   - there's a stray backup file for libstdc++

I already reported the stray backup file issue, but as part of my
original bug report. Maybe we should report it as a separate bug.

> +	bool "Linaro arm 2014.11"

For Linaro toolchains, we've stopped adding version-specific Config.in
options. At any given time, we support only one Linaro toolchain, under

> +# The Linaro 2014.11 toolchains are split in two parts:
> +# - the main archive, contains compiler and other tools, plus a minimal

No comma between 'archive' and 'contains'.

> +#   sysroot without a lot of share dlibs (e.g. libstdc++.so)
> +# - a secondrary archive with another part of the sysroot (in that both


> +#   the intersection and exclusion are non-empty)

"in that both the intersection and exclusion are non-empty" ?!?

> +# The standard package infra handles the main archive, and we use a
> +# post-extract hook to extract the secondary, sysroot archive
> +endef
> +# The sysroot archive is kinda broken, keep the pieces together...

Maybe be more specific here about what is being done rather than just
"let's fix the breakage".

> +	$(SED) 's/\(typedef __daddr_t daddr_t;\)/\1\ntypedef __caddr_t caddr_t;/' \
> +		$(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/libc/usr/include/sys/types.h
> +endef
> +	rm -f $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/libc/usr/lib/libgcc_s.so.1.backup
> +endef


Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering

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