From: Yann Sionneau <ysionneau@kalray.eu>
To: linux-kbuild@vger.kernel.org
Cc: ysionneau@kalray.eu, robh@kernel.org
Subject: [PATCH 0/1] Use target CPP to pre-process dts as supported flag checks are done on target toolchain
Date: Mon, 20 Dec 2021 17:29:24 +0100 [thread overview]
Message-ID: <20211220162925.14441-1-ysionneau@kalray.eu> (raw)
Hello,
I have encountered an issue with the following setup:
* host toolchain gcc 7.5.0 (Ubuntu 18.04 LTS)
* target toolchain gcc 9.4.1
In this case I got build error while compiling DTBs because of the following flag: -fmacro-prefix-map
This flag was known to my target toolchain (CC) but not by my HOSTCC.
One might say that Ubuntu 18.04 is pretty old and I should upgrade but I think it's fundamentally broken to check flags on toolchain A and use them on toolchain B. We could have other issues like this in the future.
I'm proposing this change to open the discussion.
Regards,
Yann Sionneau (1):
Use target CPP to pre-process dts as supported flag checks are done on
target toolchain
scripts/Makefile.lib | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
2.17.1
next reply other threads:[~2021-12-20 16:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-20 16:29 Yann Sionneau [this message]
2021-12-20 16:29 ` [PATCH 1/1] Use target CPP to pre-process dts as supported flag checks are done on target toolchain Yann Sionneau
2021-12-21 23:10 ` Masahiro Yamada
2021-12-21 23:30 ` Rob Herring
2021-12-21 23:08 ` [PATCH 0/1] " Masahiro Yamada
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