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vmlinux: Avoid weak reference to notes section

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Weak references are references that are permitted to remain unsatisfied
in the final link. This means they cannot be implemented using place
relative relocations, resulting in GOT entries when using position
independent code generation.

The notes section should always exist, so the weak annotations can be
omitted.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Ard Biesheuvel 2024-04-15 18:20:44 +02:00 committed by Masahiro Yamada
parent 951bcae6c5
commit 377d909511
2 changed files with 4 additions and 4 deletions
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4
kernel/ksysfs.c
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@ -228,8 +228,8 @@ KERNEL_ATTR_RW(rcu_normal);
/*
* Make /sys/kernel/notes give the raw contents of our kernel .notes section.
*/
extern const void __start_notes __weak;
extern const void __stop_notes __weak;
extern const void __start_notes;
extern const void __stop_notes;
#define notes_size (&__stop_notes - &__start_notes)
static ssize_t notes_read(struct file *filp, struct kobject *kobj,

4
lib/buildid.c
View File

@ -182,8 +182,8 @@ unsigned char vmlinux_build_id[BUILD_ID_SIZE_MAX] __ro_after_init;
*/
void __init init_vmlinux_build_id(void)
{
extern const void __start_notes __weak;
extern const void __stop_notes __weak;
extern const void __start_notes;
extern const void __stop_notes;
unsigned int size = &__stop_notes - &__start_notes;
build_id_parse_buf(&__start_notes, vmlinux_build_id, size);