Merge commit fd4113508a64 from llvm-project (by Minsoo Choo):HEADmain

  [libunwind] Support extended amd64 segment registers (#229176)

  Raise the amd64 DWARF register limit to 59 and add RFLAGS, all six
  segment selectors, FS.base, and GS.base to the register model. Capture
  the extended state and restore it when resuming, using sigreturn() on
  FreeBSD to restore selectors and bases together. Pack the state into the
  existing context buffers without changing their public sizes or the
  Windows XMM offsets.

  Add tests for register access, signal-frame CFI recovery, register
  bounds, and resume behavior.

  Assisted-by: GPT

MFC after:	1 week

0 files changed, 0 insertions, 0 deletions