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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-02-23 13:02:13 +0100 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2022-04-05 08:43:05 -0700 |
| commit | 6ab9942c44b2d213a16b2620e4baf0223122222f (patch) | |
| tree | 0ca6816cea5a0928994fa94ae4868df9b4f48b56 /kernel/module/strict_rwx.c | |
| parent | 446d55666d5599ca58c1ceac25ce4b5191e70835 (diff) | |
| download | linux-6ab9942c44b2d213a16b2620e4baf0223122222f.tar.bz2 | |
module: Introduce data_layout
In order to allow separation of data from text, add another layout,
called data_layout. For architectures requesting separation of text
and data, only text will go in core_layout and data will go in
data_layout.
For architectures which keep text and data together, make data_layout
an alias of core_layout, that way data_layout can be used for all
data manipulations, regardless of whether data is in core_layout or
data_layout.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/module/strict_rwx.c')
| -rw-r--r-- | kernel/module/strict_rwx.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/module/strict_rwx.c b/kernel/module/strict_rwx.c index f36ea54c1dac..fe3c10891407 100644 --- a/kernel/module/strict_rwx.c +++ b/kernel/module/strict_rwx.c @@ -101,12 +101,12 @@ void module_enable_ro(const struct module *mod, bool after_init) set_vm_flush_reset_perms(mod->init_layout.base); frob_text(&mod->core_layout, set_memory_ro); - frob_rodata(&mod->core_layout, set_memory_ro); + frob_rodata(&mod->data_layout, set_memory_ro); frob_text(&mod->init_layout, set_memory_ro); frob_rodata(&mod->init_layout, set_memory_ro); if (after_init) - frob_ro_after_init(&mod->core_layout, set_memory_ro); + frob_ro_after_init(&mod->data_layout, set_memory_ro); } void module_enable_nx(const struct module *mod) @@ -114,9 +114,9 @@ void module_enable_nx(const struct module *mod) if (!IS_ENABLED(CONFIG_STRICT_MODULE_RWX)) return; - frob_rodata(&mod->core_layout, set_memory_nx); - frob_ro_after_init(&mod->core_layout, set_memory_nx); - frob_writable_data(&mod->core_layout, set_memory_nx); + frob_rodata(&mod->data_layout, set_memory_nx); + frob_ro_after_init(&mod->data_layout, set_memory_nx); + frob_writable_data(&mod->data_layout, set_memory_nx); frob_rodata(&mod->init_layout, set_memory_nx); frob_writable_data(&mod->init_layout, set_memory_nx); } |