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kernel-devsrc: fix mismatched compiler warning

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When building a module on target, we use the native compiler
(always "gcc") versus the same compiler, but named in a cross
compiler manner, for the kernel build.

The kernel captures the compiler string in several places,
some of which we are already fixing, but others we are not
(as they don't cause issues).

But when building an on target module, the main kernel Makefile
compares compiler strings and outputs a warning similar to:

  warning: the compiler differs from the one used to build the kernel
    The kernel was built by: x86_64-poky-linux-gcc (GCC) 11.3.0
    You are using:           gcc (GCC) 11.3.0

We drop the cross compilation prefix from the captured compiler
string, and we avoid the warning.

RP: tweaked one sed expression to fix quoting issue with 5.15
(From OE-Core rev: a122e5b914d59ceaa10ddb66e8611c31f0fb958d)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 70419f281a4571d01975bd79a47a6ed7ae70b1ae)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bruce Ashfield 2023-03-24 11:08:46 -04:00 committed by Richard Purdie
parent 97334413f4
commit dbaac8ff1c
1 changed files with 7 additions and 0 deletions
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7
meta/recipes-kernel/linux/kernel-devsrc.bb
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@ -308,6 +308,13 @@ do_install() {
# external modules can be built # external modules can be built
touch -r $kerneldir/build/Makefile $kerneldir/build/include/generated/uapi/linux/version.h touch -r $kerneldir/build/Makefile $kerneldir/build/include/generated/uapi/linux/version.h
# This fixes a warning that the compilers don't match when building a module
# Change: CONFIG_CC_VERSION_TEXT="x86_64-poky-linux-gcc (GCC) 12.2.0" to "gcc (GCC) 12.2.0"
# #define CONFIG_CC_VERSION_TEXT "x86_64-poky-linux-gcc (GCC) 12.2.0" to "gcc (GCC) 12.2.0"
sed -i 's/CONFIG_CC_VERSION_TEXT=".*\(gcc.*\)"/CONFIG_CC_VERSION_TEXT="\1"/' "$kerneldir/build/.config"
sed -i 's/#define CONFIG_CC_VERSION_TEXT ".*\(gcc.*\)"/#define CONFIG_CC_VERSION_TEXT "\1"/' $kerneldir/build/include/generated/autoconf.h
sed -i 's/CONFIG_CC_VERSION_TEXT=".*\(gcc.*\)"/CONFIG_CC_VERSION_TEXT="\1"/' $kerneldir/build/include/config/auto.conf
# make sure these are at least as old as the .config, or rebuilds will trigger # make sure these are at least as old as the .config, or rebuilds will trigger
touch -r $kerneldir/build/.config $kerneldir/build/include/generated/autoconf.h 2>/dev/null || : touch -r $kerneldir/build/.config $kerneldir/build/include/generated/autoconf.h 2>/dev/null || :
touch -r $kerneldir/build/.config $kerneldir/build/include/config/auto.conf* 2>/dev/null || : touch -r $kerneldir/build/.config $kerneldir/build/include/config/auto.conf* 2>/dev/null || :