[RFC PATCH 00/12] Cross compilation of embedded firmware

[Paolo Bonzini <pbonzini@redhat.com>]

This is the next part of the firmware cross compilation story, and
shows a little more the direction I would like for QEMU's configure
script.

It basically does half of half of the work: it only looks at firmware
that's distributed with QEMU (optionrom, s390-ccw, vof) and does not do
docker cross compilers yet.  However, the important part is taking
infrastructure from the recently-cleaned-up tests/tcg/configure.sh, and
moving it in the main configure script so that others can use it.

tests/tcg is actually very close to being buildable as a standalone
project, so I actually expect the compiler tests to move back to
tests/tcg, as a "configure" script of sorts which would run at Make time
after the docker images are built.  The "Cygnus" (GCC/binutils/gdb) tree
has a similar idea of "configure" doing only bare-bones tree-wide
configuration, with the rest left for Make time; so that's where I took
inspiration from.

Paolo


Paolo Bonzini (12):
  tests/tcg: merge configure.sh back into main configure script
  configure: add missing cross compiler fallbacks
  configure: handle host compiler in probe_target_compiler
  configure: introduce --cross-prefix-*=
  configure: include more binutils in tests/tcg makefile
  configure, meson: move symlinking of ROMs to meson
  configure: move symlink configuration earlier
  configure: enable cross-compilation of s390-ccw
  pc-bios/optionrom: detect -fno-pie
  pc-bios/optionrom: compile with -Wno-array-bounds
  configure: enable cross-compilation of optionrom
  configure: enable cross compilation of vof

 configure                    | 597 +++++++++++++++++++++++++++++++----
 pc-bios/meson.build          |  18 +-
 pc-bios/optionrom/Makefile   |   8 +-
 pc-bios/s390-ccw/Makefile    |   9 +-
 pc-bios/s390-ccw/netboot.mak |   2 +-
 pc-bios/vof/Makefile         |  17 +-
 tests/Makefile.include       |   3 +-
 tests/tcg/configure.sh       | 376 ----------------------
 8 files changed, 564 insertions(+), 466 deletions(-)
 delete mode 100755 tests/tcg/configure.sh

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2.35.1