[PATCH v2 0/3] Support frames inlined in outer frames

[Simon Marchi <simon.marchi@polymtl.ca>]

This is essentially a v2 of this thread here:

    https://sourceware.org/pipermail/gdb-patches/2020-March/166786.html

In summary, this is what the patches do:

1. fixes a latent bug that triggered when trying to unwind a frame
   inlined in the outer frame
2. changes how outer frames are represented
3. allows frames inlined in outer frames, adds a test that runs on
   regular hardware

I don't see any regression on x86-64.  I tested previous iterations of
the series (with similar code) on aarch64 too and didn't see any
regression.

Scott Linder (1):
  gdb: support frames inlined into the outer frame

Simon Marchi (2):
  gdb: make frame_unwind_got_optimized return a not_lval value
  gdb: introduce explicit outer frame id kind

 gdb/frame-unwind.c                            |  14 +-
 gdb/frame-unwind.h                            |   3 +
 gdb/frame.c                                   |  21 +--
 gdb/frame.h                                   |   9 +-
 gdb/inline-frame.c                            |   4 -
 .../gdb.dwarf2/dw2-reg-undefined.exp          |  12 ++
 .../gdb.dwarf2/frame-inlined-in-outer-frame.S | 137 ++++++++++++++++++
 .../frame-inlined-in-outer-frame.exp          | 114 +++++++++++++++
 8 files changed, 281 insertions(+), 33 deletions(-)
 create mode 100644 gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.S
 create mode 100644 gdb/testsuite/gdb.dwarf2/frame-inlined-in-outer-frame.exp

-- 
2.28.0