tce-load -i compiletc

cd uname_hack

cc -shared uname_hack.c -fPIC -march=i486 -mtune=i686 -Os -ldl -o uname_hack.so

uname_hack.c:33:10: fatal error: linux/init.h: No such file or directory
   33 | #include <linux/init.h>

cc -shared uname_hack.c -fPIC -march=i486 -mtune=i686 -Os -I/usr/src/linux-5.10.3/include -ldl -o uname_hack.so

In file included from /usr/src/linux-5.10.3/include/linux/kernel.h:8,
                 from /usr/src/linux-5.10.3/include/linux/list.h:9,
                 from /usr/src/linux-5.10.3/include/linux/module.h:12,
                 from uname_hack.c:32:
/usr/src/linux-5.10.3/include/linux/linkage.h:8:10: fatal error: asm/linkage.h: No such file or directory
    8 | #include <asm/linkage.h>

cc -shared uname_hack.c -fPIC -march=i486 -mtune=i686 -Os -I/usr/src/linux-5.10.3/include -I/usr/src/linux-5.10.3/arch/x86/include -I/usr/src/linux-5.10.3/arch/x86/include/generated -ldl -o uname_hack.so

LD_PRELOAD=$PWD/uname_hack.so uname -m
i486

cd uname_hack

sudo ln -s /usr/src/linux-5.10.3 /lib/modules/5.10.3-tinycore/build

make uname_hack_fake_machine=i486

make -C /lib/modules/5.10.3-tinycore/build SUBDIRS=/usr/src/uname_hack modules
make[1]: Entering directory '/usr/src/linux-5.10.3'
  CALL    scripts/checksyscalls.sh
  CALL    scripts/atomic/check-atomics.sh
WARNING: Symbol version dump "vmlinux.symvers" is missing.
         Modules may not have dependencies or modversions.
make[1]: Leaving directory '/usr/src/linux-5.10.3'