Merge tag 'pull-fixes-for-7.1-200422-1' of https://github.com/stsquad/qemu into staging

Testing, docs and gdbstub updates:

  - make -M virt test exercise -cpu max
  - document how binfmt_misc docker works
  - clean-up the devel TOC generation
  - clean-up check-tcg cross-compile behaviour
  - fix byte swap error in xmm gdbstub access
  - add float_convd test with reference files
  - more reference files for float_convs
  - more cleanly handle gdb crashing during check-tcg

# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAmJgIgsACgkQ+9DbCVqe
# KkRs3Qf/WnL4YV3l8jO/wEVbls/57aLPk+ak1GuvXJ+iM9gH8Qz6WZxIJIEhhHlu
# ZEixCewahTn8POMMRo4JAr0bRgtfBuh717GerXObiHcS3OuLsGM8rYP2Z1xqKL3L
# 4pR8VqhyUq/Jyl/6MPN5OZB0AdEPIdI5MuflckCeDcFaowpthLjwHao07hG/FU0s
# wQYS7aYTZT33V2Xm6xlePEEMq8YMPCJj00HF3Ljg4eUOmb+C+csFXMQtotsBJRCg
# mC/T2U0IFbrQUkkWJqVmRCPwKraQGDMn6POk298siRWE0kV4BmH8mnmN+/Jxhqgl
# QfFhQrsBxmPPG5TfQhEmlHfQ5EARLQ==
# =8q12
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 20 Apr 2022 08:08:59 AM PDT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-fixes-for-7.1-200422-1' of https://github.com/stsquad/qemu: (25 commits)
  tests/guest-debug: better handle gdb crashes
  target/i386: fix byte swap issue with XMM register access
  tests/tcg: add missing reference files for float_convs
  tests/tcg: add float_convd test
  tests/tcg: remove duplicate sha512-sse case
  tests/tcg: fix non-static build
  tests/docker: remove SKIP_DOCKER_BUILD
  tests/tcg: isolate from QEMU's config-host.mak
  tests/tcg: invoke Makefile.target directly from QEMU's makefile
  tests/tcg: list test targets in Makefile.prereqs
  tests/tcg: prepare Makefile.prereqs at configure time
  tests/tcg: remove CONFIG_USER_ONLY from config-target.mak
  tests/tcg: remove CONFIG_LINUX_USER from config-target.mak
  tests/tcg: add compiler test variables when using containers
  tests/docker: do not duplicate rules for hexagon-cross
  tests/docker: simplify docker-TEST@IMAGE targets
  tests/docker: remove unnecessary filtering of $(DOCKER_IMAGES)
  tests/docker: inline variable definitions or move close to use
  tests/docker: remove unnecessary default definitions
  tests/docker: remove dead variable
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
index 92d40cdd19..5b60a31807 100644
--- a/docs/devel/testing.rst
+++ b/docs/devel/testing.rst
@@ -637,6 +637,44 @@ The full set of annotations can be found here:
 
 https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/tsan/rtl/tsan_interface_ann.cpp
 
+docker-binfmt-image-debian-% targets
+------------------------------------
+
+It is possible to combine Debian's bootstrap scripts with a configured
+``binfmt_misc`` to bootstrap a number of Debian's distros including
+experimental ports not yet supported by a released OS. This can
+simplify setting up a rootfs by using docker to contain the foreign
+rootfs rather than manually invoking chroot.
+
+Setting up ``binfmt_misc``
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can use the script ``qemu-binfmt-conf.sh`` to configure a QEMU
+user binary to automatically run binaries for the foreign
+architecture. While the scripts will try their best to work with
+dynamically linked QEMU's a statically linked one will present less
+potential complications when copying into the docker image. Modern
+kernels support the ``F`` (fix binary) flag which will open the QEMU
+executable on setup and avoids the need to find and re-open in the
+chroot environment. This is triggered with the ``--persistent`` flag.
+
+Example invocation
+~~~~~~~~~~~~~~~~~~
+
+For example to setup the HPPA ports builds of Debian::
+
+  make docker-binfmt-image-debian-sid-hppa \
+    DEB_TYPE=sid DEB_ARCH=hppa \
+    DEB_URL=http://ftp.ports.debian.org/debian-ports/ \
+    DEB_KEYRING=/usr/share/keyrings/debian-ports-archive-keyring.gpg \
+    EXECUTABLE=(pwd)/qemu-hppa V=1
+
+The ``DEB_`` variables are substitutions used by
+``debian-boostrap.pre`` which is called to do the initial debootstrap
+of the rootfs before it is copied into the container. The second stage
+is run as part of the build. The final image will be tagged as
+``qemu/debian-sid-hppa``.
+
 VM testing
 ----------