linux-toradex.git/arch/arm/kernel/probes.c, branch v3.17

ARM: probes: fix instruction fetch order with

2014-04-01T13:45:19+00:00

If we are running BE8, the data and instruction endianness do not
match, so use  to correctly translate memory accesses
into ARM instructions.

Acked-by: Jon Medhurst 
Signed-off-by: Ben Dooks 
[taras.kondratiuk@linaro.org: fixed Thumb instruction fetch order]
Signed-off-by: Taras Kondratiuk

ARM: Make arch_specific_insn a define for new arch_probes_insn structure

2014-03-18T20:39:40+00:00

Because the common underlying code for ARM kprobes and uprobes needs
to share a common architecrure-specific context structure, and because
the generic kprobes include file insists on defining this to a dummy
structure when kprobes is not configured, a new common structure is
required which can exist when uprobes is configured without kprobes.
In this case kprobes will define a dummy structure, but without the
define aliasing the two structure tags it will not affect uprobes and
the shared probes code.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Add an emulate flag to the kprobes/uprobes instruction decode functions

2014-03-18T20:39:39+00:00

Add an emulate flag into the instruction interpreter, primarily for uprobes
support.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Change the remaining shared kprobes/uprobes symbols to something generic

2014-03-18T20:39:39+00:00

Any more ARM kprobes/uprobes symbols which have "kprobe" in the name must be
changed to the more generic "probes" or other non-kprobes specific symbol.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Change more ARM kprobes symbol names to something more generic

2014-03-18T20:39:38+00:00

Change kprobe_emulate_none, kprobe_simulate_nop, and arm_kprobe_decode_init
function names to something more appropriate for code being shared
outside of the kprobes subsystem. Also, move the new arm_probes_decode_init
declaration out of the kprobes.h include file and into the probes.h include file.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Make the kprobes condition_check symbol names more generic

2014-03-18T20:39:37+00:00

In preparation for sharing the ARM kprobes instruction interpreting
code with uprobes, make the symbols names less kprobes-specific.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Remove use of struct kprobe from generic probes code

2014-03-18T20:39:37+00:00

Change the generic ARM probes code to pass in the opcode and architecture-specific
structure separately instead of using struct kprobe, so we do not pollute
code being used only for uprobes or other non-kprobes instruction
interpretation.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: use a function table for determining instruction interpreter action

2014-03-18T20:39:36+00:00

Make the instruction interpreter call back to semantic action functions
through a function pointer array provided by the invoker.  The interpreter
decodes the instructions into groups and uses the group number to index
into the supplied array.  kprobes and uprobes code will each supply their
own array of functions.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst

ARM: Move generic arm instruction parsing code to new files for sharing between features

2014-03-18T20:39:35+00:00

Move the arm version of the kprobes instruction parsing code into more generic
files from where it can be used by uprobes and possibly other subsystems. The
symbol names will be made more generic in a subsequent part of this patchset.

Signed-off-by: David A. Long 
Acked-by: Jon Medhurst