Kees Cook d2aa1acad2 mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings ...

It may be useful to debug writes to the readonly sections of memory,
so provide a cmdline "rodata=off" to allow for this. This can be
expanded in the future to support "log" and "write" modes, but that
will need to be architecture-specific.

This also makes KDB software breakpoints more usable, as read-only
mappings can now be disabled on any kernel.

Suggested-by: H. Peter Anvin <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: David Brown <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Emese Revfy <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mathias Krause <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: PaX Team <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: linux-arch <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

2016-02-22 08:51:37 +01:00

..

kdb

mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings

2016-02-22 08:51:37 +01:00

debug_core.c

debug: prevent entering debug mode on panic/exception.

2015-02-19 12:39:03 -06:00

debug_core.h

kgdb/kdb: Fix no KDB config problem

2014-01-25 08:55:09 +01:00

gdbstub.c

Merge tag 'for_linux-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb

2013-03-02 08:31:39 -08:00

Makefile

kdb: core for kgdb back end (1 of 2)

2010-05-20 21:04:20 -05:00