linux-toradex.git/kernel/debug, branch imx-android-r10.4

sysrq,kdb: Use __handle_sysrq() for kdb's sysrq function

2010-07-22T00:27:07+00:00

The kdb code should not toggle the sysrq state in case an end user
wants to try and resume the normal kernel execution.

Signed-off-by: Jason Wessel 
Acked-by: Dmitry Torokhov

debug_core,kdb: fix kgdb_connected bit set in the wrong place

2010-07-22T00:27:07+00:00

Immediately following an exit from the kdb shell the kgdb_connected
variable should be set to zero, unless there are breakpoints planted.
If the kgdb_connected variable is not zeroed out with kdb, it is
impossible to turn off kdb.

This patch is merely a work around for now, the real fix will check
for the breakpoints.

Signed-off-by: Jason Wessel

Fix merge regression from external kdb to upstream kdb

2010-07-22T00:27:06+00:00

In the process of merging kdb to the mainline, the kdb lsmod command
stopped printing the base load address of kernel modules.  This is
needed for using kdb in conjunction with external tools such as gdb.

Simply restore the functionality by adding a kdb_printf for the base
load address of the kernel modules.

Signed-off-by: Jason Wessel

repair gdbstub to match the gdbserial protocol specification

2010-07-22T00:27:05+00:00

The gdbserial protocol handler should return an empty packet instead
of an error string when ever it responds to a command it does not
implement.

The problem cases come from a debugger client sending
qTBuffer, qTStatus, qSearch, qSupported.

The incorrect response from the gdbstub leads the debugger clients to
not function correctly.  Recent versions of gdb will not detach correctly as a result of this behavior.

Signed-off-by: Jason Wessel 
Signed-off-by: Dongdong Deng

kdb: break out of kdb_ll() when command is terminated

2010-07-22T00:27:05+00:00

Without this patch the "ll" linked-list traversal command won't
terminate when you hit q/Q.

Signed-off-by: Martin Hicks 
Signed-off-by: Jason Wessel

module: fix kdb's illicit use of struct module_use.

2010-06-05T01:47:36+00:00

Linus changed the structure, and luckily this didn't compile any more.

Reported-by: Stephen Rothwell 
Signed-off-by: Rusty Russell 
Cc: Jason Wessel 
Cc: Martin Hicks

x86, kgdb, init: Add early and late debug states

2010-05-21T02:04:29+00:00

The kernel debugger can operate well before mm_init(), but the x86
hardware breakpoint code which uses the perf api requires that the
kernel allocators are initialized.

This means the kernel debug core needs to provide an optional arch
specific call back to allow the initialization functions to run after
the kernel has been further initialized.

The kdb shell already had a similar restriction with an early
initialization and late initialization.  The kdb_init() was moved into
the debug core's version of the late init which is called
dbg_late_init();

CC: kgdb-bugreport@lists.sourceforge.net
Signed-off-by: Jason Wessel

kdb,debug_core: Allow the debug core to receive a panic notification

2010-05-21T02:04:28+00:00

It is highly desirable to trap into kdb on panic.  The debug core will
attempt to register as the first in line for the panic notifier.

CC: Ingo Molnar 
CC: Andrew Morton 
CC: Eric W. Biederman 
Signed-off-by: Jason Wessel

debug_core,kdb: Allow the debug core to process a recursive debug entry

2010-05-21T02:04:27+00:00

This allows kdb to debug a crash with in the kms code with a
single level recursive re-entry.

Signed-off-by: Jason Wessel

printk,kdb: capture printk() when in kdb shell

2010-05-21T02:04:27+00:00

Certain calls from the kdb shell will call out to printk(), and any of
these calls should get vectored back to the kdb_printf() so that the
kdb pager and processing can be used, as well as to properly channel
I/O to the polled I/O devices.

CC: Randy Dunlap 
Signed-off-by: Jason Wessel 
Acked-by: Andrew Morton