[PATCH v5 00/16] uprobes: Add uprobes support for ARM

[David Long]

From: "David A. Long" <dave.long at linaro.org>

This patch series adds basic uprobes support to ARM. It is based on patches
developed earlier by Rabin Vincent. That approach of adding hooks into
the kprobes instruction parsing code was not well received. This approach
separates the ARM instruction parsing code in kprobes out into a separate set
of functions which can be used by both kprobes and uprobes. Both kprobes and
uprobes then provide their own semantic action tables to process the results of
the parsing.

The following are noteworthy changes made for v5:

1) Created new decode_action type, instead of adding to the decode_item union.
2) Hardcoded the action array sizes so any (erroneous) partial static
   initialization will still leave an array of the correct size.
3) Remove redundant defines for in_it_block and current_cond.
4) Moved some changes between patches to group them more logically.
5) Added missing copyright headers to a couple new files.
6) Removed unnecessary checking before modifying the instruction in
   decode_regs in arch/arm/kernel/probes.c.
7) Fixed missing handling of abort/traps during XOL processing.
8) Removed unused local variable in arch_uprobe_skip_sstep in
   arch/arm/kernel/uprobes.c
9) Added missing "=" in static array initialization.
10) Updated some descriptive comments to describe new behavior.
11) Patches are now against v3.13-rc8.

David A. Long (15):
  uprobes: allow ignoring of probe hits
  ARM: move shared uprobe/kprobe definitions into new include file
  ARM: Move generic arm instruction parsing code to new files for
    sharing between features
  ARM: move generic thumb instruction parsing code to new files for use
    by other feature
  ARM: use a function table for determining instruction interpreter
    action
  ARM: Remove use of struct kprobe from generic probes code
  ARM: Use new opcode type in ARM kprobes/uprobes code
  ARM: Make the kprobes condition_check symbol names more generic
  ARM: Change more ARM kprobes symbol names to something more
  ARM: Rename the shared kprobes/uprobe return value enum
  ARM: Change the remaining shared kprobes/uprobes symbols to something
    generic
  ARM: Add an emulate flag to the kprobes/uprobes instruction decode
    functions
  ARM: Make arch_specific_insn a define for new arch_probes_insn
    structure
  ARM: add uprobes support
  ARM: Remove uprobes dependency on kprobes

Jon Medhurst (Tixy) (1):
  ARM: Disable jprobes test when built into thumb-mode kernel

 arch/arm/Kconfig                                   |    3 +
 arch/arm/include/asm/kprobes.h                     |   15 +-
 arch/arm/include/asm/probes.h                      |   43 +
 arch/arm/include/asm/ptrace.h                      |    6 +
 arch/arm/include/asm/thread_info.h                 |    5 +-
 arch/arm/include/asm/uprobes.h                     |   45 +
 arch/arm/kernel/Makefile                           |    7 +-
 arch/arm/kernel/kprobes-arm.c                      |  804 ++------------
 arch/arm/kernel/kprobes-common.c                   |  468 +-------
 arch/arm/kernel/kprobes-test.c                     |   18 +-
 arch/arm/kernel/kprobes-thumb.c                    | 1142 +++-----------------
 arch/arm/kernel/kprobes.c                          |   23 +-
 arch/arm/kernel/kprobes.h                          |  400 +------
 arch/arm/kernel/{kprobes-arm.c => probes-arm.c}    |  441 ++------
 arch/arm/kernel/probes-arm.h                       |   73 ++
 .../arm/kernel/{kprobes-thumb.c => probes-thumb.c} |  770 ++-----------
 arch/arm/kernel/probes-thumb.h                     |   97 ++
 arch/arm/kernel/{kprobes-common.c => probes.c}     |  209 +---
 arch/arm/kernel/{kprobes.h => probes.h}            |  125 +--
 arch/arm/kernel/signal.c                           |    4 +
 arch/arm/kernel/uprobes-arm.c                      |  231 ++++
 arch/arm/kernel/uprobes.c                          |  208 ++++
 arch/arm/kernel/uprobes.h                          |   35 +
 include/linux/uprobes.h                            |    1 +
 kernel/events/uprobes.c                            |    9 +
 25 files changed, 1342 insertions(+), 3840 deletions(-)
 create mode 100644 arch/arm/include/asm/probes.h
 create mode 100644 arch/arm/include/asm/uprobes.h
 copy arch/arm/kernel/{kprobes-arm.c => probes-arm.c} (64%)
 create mode 100644 arch/arm/kernel/probes-arm.h
 copy arch/arm/kernel/{kprobes-thumb.c => probes-thumb.c} (56%)
 create mode 100644 arch/arm/kernel/probes-thumb.h
 copy arch/arm/kernel/{kprobes-common.c => probes.c} (67%)
 copy arch/arm/kernel/{kprobes.h => probes.h} (80%)
 create mode 100644 arch/arm/kernel/uprobes-arm.c
 create mode 100644 arch/arm/kernel/uprobes.c
 create mode 100644 arch/arm/kernel/uprobes.h

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1.8.1.2