[Buildroot] [PATCH 2/4] toolchain: allow for stupid toolchains
Yann E. MORIN
yann.morin.1998 at free.fr
Sat Jun 27 10:28:04 UTC 2015
Guido, All,
On 2015-06-26 14:33 -0300, Guido Martínez spake thusly:
> check_arm_abi builds a test C file to check that the toolchain is
> working correctly, with the output redirected to /dev/null.
>
> However, some toolchains (OSELAS 2014.12.0, for instance) foolishly
> append ".gdb" to the output filename for an intermediate file, causing
> an attempt to write to /dev/null.gdb, which obviously fails.
>
> Fix this by adding changing the output to a temporary file, which is
> later removed along with any other "suffixed" files.
>
> Suggested-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> Signed-off-by: Guido Martínez <guido at vanguardiasur.com.ar>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Regards,
Yann E. MORIN.
> ---
> toolchain/helpers.mk | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
> index 30eb065..0dc1864 100644
> --- a/toolchain/helpers.mk
> +++ b/toolchain/helpers.mk
> @@ -308,12 +308,14 @@ check_arm_abi = \
> echo "External toolchain uses the unsuported OABI" ; \
> exit 1 ; \
> fi ; \
> - if ! echo 'int main(void) {}' | $${__CROSS_CC} -x c -o /dev/null - ; then \
> + if ! echo 'int main(void) {}' | $${__CROSS_CC} -x c -o $(BUILD_DIR)/.br-toolchain-test.tmp - ; then \
> + rm -f $(BUILD_DIR)/.br-toolchain-test.tmp*; \
> abistr_$(BR2_ARM_EABI)='EABI'; \
> abistr_$(BR2_ARM_EABIHF)='EABIhf'; \
> echo "Incorrect ABI setting: $${abistr_y} selected, but toolchain is incompatible"; \
> exit 1 ; \
> - fi
> + fi ; \
> + rm -f $(BUILD_DIR)/.br-toolchain-test.tmp*
>
> #
> # Check that the external toolchain supports C++
> --
> 2.1.4
>
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