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Merge remote-tracking branch 'remotes/thuth-gitlab/tags/s390-ccw-bios-2021-05-10' into staging

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* Make the s390-ccw bios compilable with Clang
* Fix ECKD booting with null block numbers in the chain

# gpg: Signature made Mon 10 May 2021 08:27:34 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/s390-ccw-bios-2021-05-10:
  pc-bios/s390: Update the s390-ccw bios binaries with the Clang and other fixes
  pc-bios/s390-ccw: Allow building with Clang, too
  pc-bios/s390-ccw: Silence GCC 11 stringop-overflow warning
  pc-bios/s390-ccw: Fix the cc-option macro in the Makefile
  pc-bios/s390-ccw: Silence warning from Clang by marking panic() as noreturn
  pc-bios/s390-ccw/netboot: Use "-Wl," prefix to pass parameter to the linker
  pc-bios/s390-ccw: Use reset_psw pointer instead of hard-coded null pointer
  pc-bios/s390-ccw/bootmap: Silence compiler warning from Clang
  pc-bios/s390-ccw: don't try to read the next block if end of chunk is reached

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
2021-05-11 21:21:33 +01:00
parent f9a576a818 f612e211e5
commit 7c7cb752d7
8 changed files with 19 additions and 9 deletions
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9
configure vendored
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@@ -5440,9 +5440,16 @@ if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
fi
# Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
# or -march=z10 (which is the lowest architecture level that Clang supports)
if test "$cpu" = "s390x" ; then
write_c_skeleton
if compile_prog "-march=z900" ""; then
compile_prog "-march=z900" ""
has_z900=$?
if [ $has_z900 = 0 ] || compile_prog "-march=z10" ""; then
if [ $has_z900 != 0 ]; then
echo "WARNING: Your compiler does not support the z900!"
echo " The s390-ccw bios will only work with guest CPUs >= z10."
fi
roms="$roms s390-ccw"
# SLOF is required for building the s390-ccw firmware on s390x,
# since it is using the libnet code from SLOF for network booting.