[PATCH v2 0/4] linux/sparc: more get/set_context fixes

[Peter Maydell]

Based-on: 20201105212314.9628-1-peter.maydell@linaro.org
("[PATCH for-5.2 0/3] linux-user: fix various sparc64 guest bugs")

This series fixes a few more issues with our sparc linux-user
sparc64_get_context() and sparc64_set_context() implementation:
 * we weren't handling FPU regs correctly, and also the way
   we coded the handling triggered Coverity warnings
 * some stray pointless error checks
 * we shouldn't restore %g7 in set_context
 * we weren't saving and restoring tstate correctly

My main aim here was to deal with the Coverity errors, but
the rest are things I noticed while I was working on the
code or which had fixme comments, and I figured I'd fix
them while the code was fresh in my mind.

thanks
-- PMM

Peter Maydell (4):
  linux-user/sparc: Correct sparc64_get/set_context() FPU handling
  linux-user/sparc: Remove unneeded checks of 'err' from
    sparc64_get_context()
  linux-user/sparc: Don't restore %g7 in sparc64_set_context()
  linux-user/sparc: Handle tstate in sparc64_get/set_context()

 target/sparc/cpu.h          | 28 +++++++++---
 linux-user/sparc/signal.c   | 87 ++++++++++++++++++++-----------------
 target/sparc/int64_helper.c |  5 +--
 3 files changed, 71 insertions(+), 49 deletions(-)

-- 
2.20.1