linux-toradex.git/kernel/module/Makefile, branch v5.19-rc8

module: Introduce module unload taint tracking

2022-05-12T17:29:41+00:00

Currently, only the initial module that tainted the kernel is
recorded e.g. when an out-of-tree module is loaded.

The purpose of this patch is to allow the kernel to maintain a record of
each unloaded module that taints the kernel. So, in addition to
displaying a list of linked modules (see print_modules()) e.g. in the
event of a detected bad page, unloaded modules that carried a taint/or
taints are displayed too. A tainted module unload count is maintained.

The number of tracked modules is not fixed. This feature is disabled by
default.

Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move module_enable_x() and frob_text() in strict_rwx.c

2022-04-05T15:43:04+00:00

Move module_enable_x() together with module_enable_nx() and
module_enable_ro().

Those three functions are going together, they are all used
to set up the correct page flags on the different sections.

As module_enable_x() is used independently of
CONFIG_STRICT_MODULE_RWX, build strict_rwx.c all the time and
use IS_ENABLED(CONFIG_STRICT_MODULE_RWX) when relevant.

Signed-off-by: Christophe Leroy 
Signed-off-by: Luis Chamberlain

module: Move version support into a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates module version support out of core code into
kernel/module/version.c. In addition simple code refactoring to
make this possible.

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move kdb module related code out of main kdb code

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates the kdb 'lsmod' command support out of main
kdb code into its own file under kernel/module. In addition to
the above, a minor style warning i.e. missing a blank line after
declarations, was resolved too. The new file was added to
MAINTAINERS. Finally we remove linux/module.h as it is entirely
redundant.

Reviewed-by: Daniel Thompson 
Acked-by: Daniel Thompson 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move sysfs support into a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates module sysfs support out of core code into
kernel/module/sysfs.c. In addition simple code refactoring to
make this possible.

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move procfs support into a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates code that allows one to generate a
list of loaded/or linked modules via /proc when procfs
support is enabled into kernel/module/procfs.c.

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move kallsyms support into a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates kallsyms code out of core module
code kernel/module/kallsyms.c

Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move kmemleak support to a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates kmemleak code out of core module
code into kernel/module/debug_kmemleak.c

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move strict rwx support to a separate file

2022-04-05T15:43:04+00:00

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.

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain

module: Move latched RB-tree support to a separate file

2022-04-05T15:43:04+00:00

No functional change.

This patch migrates module latched RB-tree support
(e.g. see __module_address()) from core module code
into kernel/module/tree_lookup.c.

Reviewed-by: Christophe Leroy 
Signed-off-by: Aaron Tomlin 
Signed-off-by: Luis Chamberlain