[PATCH 0/4] Add AARCH64 pointer authentication support

[German Gomez <german.gomez@arm.com>]

Hi,

I've included a set of patches in order to demangle return addresses in
aarch64 platforms with pointer authentication.

Besides adding the implementation of the negate_ra_state opcode, there
is a new function in the libdwfl.h header to feed the PAC masks to the
library.

Let me know if there are any concerns with the current version.

Thanks,
German

German Gomez (4):
  aarch64: Create definitions for AARCH64_RA_SIGN_STATE register
  libdw,aarch64: Implement DW_CFA_AARCH64_negate_ra_state CFI
    instruction
  libdwfl,aarch64: Demangle return addresses using a PAC mask
  libdwfl,eu-stack,aarch64: Add API for setting AARCH64 PAC mask.

 backends/aarch64_init.c    |  6 +++---
 backends/aarch64_initreg.c |  2 ++
 backends/aarch64_regs.c    |  5 ++++-
 libdw/cfi.c                | 14 +++++++++++++-
 libdw/dwarf.h              |  5 +++++
 libdw/libdw.map            |  5 +++++
 libdwfl/dwfl_frame.c       |  3 +++
 libdwfl/dwfl_frame_regs.c  | 10 ++++++++++
 libdwfl/frame_unwind.c     | 14 +++++++++++++-
 libdwfl/libdwfl.h          |  6 ++++++
 libdwfl/libdwflP.h         |  7 +++++++
 libdwfl/linux-pid-attach.c | 34 ++++++++++++++++++++++++++++++++--
 tests/run-addrcfi.sh       |  1 +
 tests/run-allregs.sh       |  1 +
 14 files changed, 105 insertions(+), 8 deletions(-)

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2.25.1