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* MN10300: Deprecate gdbstubDavid Howells2011-03-181-1/+4
| | | | | | | | | Deprecate the MN10300 arch's gdbstub in favour of KGDB, which is more capable in some areas (such as SMP) and almost as capable in others (it's I/O is not as decoupled and it can't start as early). gdbstub will be removed in a later version when we're satisfied with KGDB's working. Signed-off-by: David Howells <dhowells@redhat.com>
* MN10300: Use KGDBDavid Howells2011-03-181-1/+1
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* MN10300: Introduce a general config option for kernel debugger hooksDavid Howells2011-03-181-0/+4
| | | | | | | Introduce a general config option for kernel debugger hooks so that both gdbstub and kgdb can use it and add a header file for both debuggers to use. Signed-off-by: David Howells <dhowells@redhat.com>
* MN10300: gdbstub: Restrict single-stepping to non-preemptable non-SMP configsDavid Howells2011-03-181-0/+8
| | | | | | | | | | | | | | | Restrict single-stepping through the kernel using gdbstub to non-preemptable non-SMP configs as gdbstub has to do software single-stepping by means of temporary breakpoints. Hardware single-stepping is unavailable as Panasonic have not sufficiently documented the interface to it. Software single-stepping through preemptable or SMP kernels runs into problems as it makes it much more likely that the wrong thread will hit the temporary breakpoints. It seems impractical to work around the problem for the most part. It could be possible to make a UP preemptable kernel switch temporary breakpoints in and out in switch_to(). Signed-off-by: David Howells <dhowells@redhat.com>
* MN10300: Default config choice GDBSTUB_TTYSM0 should be GDBSTUB_ON_TTYSM0David Howells2010-09-271-1/+1
| | | | | | | | | The configuration choice for the port on which the GDB stub listens has a default of GDBSTUB_TTYSM0, but this should be GDBSTUB_ON_TTYSM0 to match the option. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MN10300: Add built-in testing for misalignment handlerDavid Howells2008-11-121-0/+9
| | | | | | | Add configurable built-in testing for the MN10300 misalignment handler. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mn10300: add the MN10300/AM33 architecture to the kernelDavid Howells2008-02-081-0/+135
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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