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| author | Vasily Gorbik <gor@linux.ibm.com> | 2023-03-28 10:00:33 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2023-04-04 18:34:55 +0200 |
| commit | b46650d56bd31dca8b09b5670ee9441a8f7b8869 (patch) | |
| tree | 202660e628d8be3b2dd35360c8658409a5656a95 /arch/s390/kernel/vmlinux.lds.S | |
| parent | s390/entry: rely on long-displacement facility (diff) | |
| download | linux-b46650d56bd31dca8b09b5670ee9441a8f7b8869.tar.xz linux-b46650d56bd31dca8b09b5670ee9441a8f7b8869.zip | |
s390: make extables read-only
Currently, exception tables are marked as ro_after_init. However,
since they are sorted during compile time using scripts/sorttable,
they can be moved to RO_DATA using the RO_EXCEPTION_TABLE_ALIGN macro,
which is specifically designed for this purpose.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/s390/kernel/vmlinux.lds.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 8d2288a5ba25..2ae201ebf90b 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -14,6 +14,8 @@ #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir) \ *(.bss..invalid_pg_dir) +#define RO_EXCEPTION_TABLE_ALIGN 16 + /* Handle ro_after_init data on our own. */ #define RO_AFTER_INIT_DATA @@ -66,7 +68,6 @@ SECTIONS *(.data..ro_after_init) JUMP_TABLE_DATA } :data - EXCEPTION_TABLE(16) . = ALIGN(PAGE_SIZE); __end_ro_after_init = .; |