Le 18/02/2022 à 22:25, Aaron Tomlin a écrit :
> No functional change.
>
> This patch migrates code that makes module text
> and rodata memory read-only and non-text memory
> non-executable from core module code into
> kernel/module/strict_rwx.c.
>
> Signed-off-by: Aaron Tomlin <atomlin@xxxxxxxxxx>
> ---
> kernel/module/Makefile | 1 +
> kernel/module/internal.h | 38 +++++++++++++++
> kernel/module/main.c | 99 +-------------------------------------
> kernel/module/strict_rwx.c | 84 ++++++++++++++++++++++++++++++++
> 4 files changed, 125 insertions(+), 97 deletions(-)
> create mode 100644 kernel/module/strict_rwx.c
CC kernel/module/strict_rwx.o
In file included from ./include/linux/build_bug.h:5,
from ./include/linux/container_of.h:5,
from ./include/linux/list.h:5,
from ./include/linux/module.h:12,
from kernel/module/strict_rwx.c:8:
kernel/module/strict_rwx.c: In function 'frob_rodata':
kernel/module/strict_rwx.c:16:17: error: implicit declaration of
function 'PAGE_ALIGNED'; did you mean 'IS_ALIGNED'?
[-Werror=implicit-function-declaration]
16 | BUG_ON(!PAGE_ALIGNED(layout->base));
| ^~~~~~~~~~~~
./include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
kernel/module/strict_rwx.c:16:9: note: in expansion of macro 'BUG_ON'
16 | BUG_ON(!PAGE_ALIGNED(layout->base));
| ^~~~~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:288 : kernel/module/strict_rwx.o]
Erreur 1
You have to include <linux/mm.h>
Christophe
