Messages in this thread | | | From | Jason Wessel <> | Subject | kgdb 2.6.28 merge plans | Date | Tue, 21 Oct 2008 14:14:46 -0500 |
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It is late in the merge window, but these are plans for the kgdb merges for 2.6.28.
* The blackfin folks needed some changes to the kgdb core to allow some more flexibility * Another kgdboc I/O drivers is ready for merge * The CONSOLE_POLL API has been extended to allow for an RX poll call back from a low level serial driver * kgdboc will request/allocate a tty so as to sync with the user space with respect to having only one invocation of the low level start up code.
To an end user there are a couple key differences with the enhanced kgdboc. There were numerous complaints that folks just wanted kgdboc to work like the 8250_kgdb module where gdb could just connect and it worked. This is the new default behavior of kgdboc. It will intercept a control-c or the start of a gdb serial packet and automatically jump into the debugger, much like the 8250_kgdb module. The other difference is that with the tty allocation, kgdboc can also now be configured on a non-console or inactive serial port.
After this patch set is applied the only thing that kgdboc cannot currently do that the 8250_kgdb module could is perform debugging before the tty and console kernel subsystems have been initialized in the kernel. It is likely that this can be accomplished a different way in the future and the 8250_kgdb module will be deprecated and never merged to the mainline kernel.
Final regression testing for these features is being completed in the next day. Find the code at:
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb.git for_linus
Short log follows:
--- Atsushi Nemoto (1): kgdb: kgdboc console poll hooks for serial_txx9 uart
Jason Wessel (5): kgdb: Add the ability to schedule a breakpoint via a tasklet tty: Fix sparse static warning for tty_driver_lookup_tty kgdboc, tty: Add the rx polling call back capability kgdboc, 8250: Add the rx polling hook to 8250 driver kgdboc, tty: use tty open to start low level drivers
Sonic Zhang (1): kgdb: Make mem access function weak in kgdb.c andkgdb.h
Documentation/DocBook/kgdb.tmpl | 49 ++++++++++++++--- drivers/char/tty_io.c | 105 +++++++++++++++++++++++++++++++----- drivers/serial/8250.c | 4 ++ drivers/serial/kgdboc.c | 82 +++++++++++++++++++++++++++- drivers/serial/serial_core.c | 24 ++++++++- drivers/serial/serial_txx9.c | 113 +++++++++++++++++++++++++++++++------- include/linux/kgdb.h | 43 ++++++++++++++- include/linux/serial_core.h | 3 + include/linux/tty_driver.h | 8 +++- kernel/kgdb.c | 33 ++++++++++- 10 files changed, 413 insertions(+), 51 deletions(-)
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