On Mon, May 18, 2020 at 11:55:11AM +0900, Masahiro Yamada wrote:
Tom,
On Thu, May 14, 2020 at 9:32 PM Tom Rini trini@konsulko.com wrote:
As part of re-syncing our Kconfig logic up to v4.19, we had missed adding this new file that includes helper macros. To quote the upstream commit e1cfdc0e72fc ("kconfig: add basic helper macros to scripts/Kconfig.include"):
Kconfig got text processing tools like we see in Make. Add Kconfig helper macros to scripts/Kconfig.include like we collect Makefile macros in scripts/Kbuild.include.
Cc: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Tom Rini trini@konsulko.com
If you want to align with Linux kernel, please go ahead.
Some notes.
Previously, CROSS_COMPILE was not required at the Kconfig stage.
So, people was able to do this:
make qemu_arm64_defconfig make CROSS_COMPILE=aarch64-linux-gnu-Going forward, Kconfig requires CROSS_COMPILE set correctly.
make CROSS_COMPILE=aarch64-linux-gnu- qemu_arm64_defconfig make CROSS_COMPILE=aarch64-linux-gnu-Maybe, passing CROSS_COMPILE as an environment variable is handier
export CROSS_COMPILE=aarch64-linux-gnu- make qemu_arm64_defconfig makeWhen you upgrade the compiler, in theory, you must re-run Kconfig because the .config now contains the compiler information.
If you want to do this automatically, you can import CC_VERSION_TEXT.
Specifically, the following two commits: 21c54b774744719c386fbdc829b0e7759edb8ece 315bab4e972d9795529b764718d475492db40c0f
OK, so we really want to grab those changes as well at the time, thanks!