Jim Cromie b7b4eebdba dyndbg: gather __dyndbg[] state into struct _ddebug_info ... This new struct composes the linker provided (vector,len) section, and provides a place to add other __dyndbg[] state-data later: descs - the vector of descriptors in __dyndbg section. num_descs - length of the data/section. Use it, in several different ways, as follows: In lib/dynamic_debug.c: ddebug_add_module(): Alter params-list, replacing 2 args (array,index) with a struct _ddebug_info * containing them both, with room for expansion. This helps future-proof the function prototype against the looming addition of class-map info into the dyndbg-state, by providing a place to add more member fields later. NB: later add static struct _ddebug_info builtins_state declaration, not needed yet. ddebug_add_module() is called in 2 contexts: In dynamic_debug_init(), declare, init a struct _ddebug_info di auto-var to use as a cursor. Then iterate over the prdbg blocks of the builtin modules, and update the di cursor before calling _add_module for each. Its called from kernel/module/main.c:load_info() for each loaded module: In internal.h, alter struct load_info, replacing the dyndbg array,len fields with an embedded _ddebug_info containing them both; and populate its members in find_module_sections(). The 2 calling contexts differ in that _init deals with contiguous subranges of __dyndbgs[] section, packed together, while loadable modules are added one at a time. So rename ddebug_add_module() into outer/__inner fns, call __inner from _init, and provide the offset into the builtin __dyndbgs[] where the module's prdbgs reside. The cursor provides start, len of the subrange for each. The offset will be used later to pack the results of builtin __dyndbg_sites[] de-duplication, and is 0 and unneeded for loadable modules, Note: kernel/module/main.c includes <dynamic_debug.h> for struct _ddeubg_info. This might be prone to include loops, since its also included by printk.h. Nothing has broken in robot-land on this. cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Link: https://lore.kernel.org/r/20220904214134.408619-12-jim.cromie@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-09-07 17:04:48 +02:00
..
debug_kmemleak.c
decompress.c	module: Replace kmap() with kmap_local_page()	2022-07-20 14:27:46 -07:00
internal.h	dyndbg: gather __dyndbg[] state into struct _ddebug_info	2022-09-07 17:04:48 +02:00
kallsyms.c	module: Increase readability of module_kallsyms_lookup_name()	2022-07-11 10:49:14 -07:00
Kconfig	module: Move module's Kconfig items in kernel/module/	2022-07-12 12:07:25 -07:00
kdb.c
livepatch.c
main.c	dyndbg: gather __dyndbg[] state into struct _ddebug_info	2022-09-07 17:04:48 +02:00
Makefile
procfs.c	module: Modify module_flags() to accept show_state argument	2022-07-14 17:40:23 -07:00
signing.c
strict_rwx.c
sysfs.c
tracking.c
tree_lookup.c
version.c