[Buildroot] [PATCHv3] package/gcc/9.3.0: fix host-gcc-final when ccache is used
peter at korsgaard.com
Tue Jun 2 06:24:58 UTC 2020
>>>>> "Romain" == Romain Naour <romain.naour at gmail.com> writes:
> As reported by several Buildroot users , the gcc build
> may fail while running selftests makefile target.
> The problem only occurs when ccache is used with gcc 9 and 10,
> probably due to a race condition.
> While debuging with "make -p" we can notice that s-selftest-c target
> contain only "cc1" as dependency instead of cc1 and SELFTEST_DEPS .
> s-selftest-c: cc1
> While the build is failing, the s-selftest-c dependencies recipe is
> still running and reported as a bug by make.
> "Dependencies recipe running (THIS IS A BUG)."
> A change  in gcc 9 seems to introduce the problem since we can't
> reproduce this problem with gcc 8.
> As suggested by Yann E. MORIN , move SELFTEST_DEPS before
> including language makefile fragments.
> With the fix applied, the s-seltest-c dependency contains
> SELFTEST_DEPS value.
> s-selftest-c: cc1 xgcc specs stmp-int-hdrs ../../gcc/testsuite/selftests
>  http://lists.busybox.net/pipermail/buildroot/2020-May/282171.html
>  http://lists.busybox.net/pipermail/buildroot/2020-May/282766.html
>  https://github.com/cirosantilli/linux-kernel-module-cheat/issues/108
>  https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/c/Make-lang.in;h=bfae6fd2549c4f728816cd355fa9739dcc08fcde;hb=033eb5671769a4c681a44aad08a454e667e08502#l120
>  https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=033eb5671769a4c681a44aad08a454e667e08502
>  http://lists.busybox.net/pipermail/buildroot/2020-May/283213.html
> Signed-off-by: Romain Naour <romain.naour at gmail.com>
> Cc: Ben Dakin-Norris <ben.dakin-norris at navtechradar.com>
> Cc: Maxim Kochetkov <fido_max at inbox.ru>
> Cc: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
> Cc: Yann E. MORIN <yann.morin.1998 at free.fr>
Committed to 2020.02.x, thanks.
Bye, Peter Korsgaard
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