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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 9/18/19 1:11 PM, Laszlo Ersek wrote: > It turns out that forcing python2 for running the edk2 "build" utility = is > neither necessary nor sufficient. >=20 > Forcing python2 is not sufficient for two reasons: >=20 > - QEMU is moving away from python2, with python2 nearing EOL, >=20 Thank you :) > - according to my most recent testing, the lacking dependency informati= on > in the makefiles that are generated by edk2's "build" utility can ca= use > parallel build failures even when "build" is executed by python2. >=20 > And forcing python2 is not necessary because we can still return to the > original idea of filtering out jobserver-related options from MAKEFLAGS= . > So do that. >=20 > With this patch, the guest UEFI binaries that are used as part of the B= IOS > tables test, and the OVMF and ArmVirtQemu platform firmwares, will be > built strictly in a single job, regardless of an outermost "-jN" make > option. Alas, there appears to be no reliable way to build edk2 in an > (outer make, inner make) environment, with a jobserver enabled. >=20 > Cc: Eduardo Habkost > Cc: John Snow > Cc: Philippe Mathieu-Daud=C3=A9 > Reported-by: John Snow > Signed-off-by: Laszlo Ersek Looks good to me, given your explanation of the situation so far. Reviewed-by: John Snow > --- >=20 > Notes: > - Tested on RHEL7 (where the outer "make" sets the old-style > "--jobserver-fds" flag) and on Fedora 29 (where the outer "make"= sets > the new-style "--jobserver-auth" flag). > =20 > - I've rebuilt all the edk2 binaries with this patch applied. Ever= ything > works fine. However, if you test this patch, you might notice th= at git > reports all the build products as modified. That's because when = using > the python3 code in edk2 BaseTools, the generated makefiles diff= er > greatly from the ones generated when running in python2 mode (e.= g. due > to different random seeds in python hashes / dictionaries). As a > result, parts of the firmware volumes / firmware filesystems cou= ld > appear in a different order than before. This is harmless, and d= oesn't > necessitate checking in the rebuilt binaries. >=20 > roms/edk2-build.sh | 4 +--- > roms/edk2-funcs.sh | 17 +++++++++++++++++ > tests/uefi-test-tools/build.sh | 6 +++--- > 3 files changed, 21 insertions(+), 6 deletions(-) >=20 > diff --git a/roms/edk2-build.sh b/roms/edk2-build.sh > index 4f46f8a6a217..8161c55ef507 100755 > --- a/roms/edk2-build.sh > +++ b/roms/edk2-build.sh > @@ -27,9 +27,6 @@ shift $num_args > =20 > cd edk2 > =20 > -# Work around . > -export PYTHON_COMMAND=3Dpython2 > - > # Source "edksetup.sh" carefully. > set +e +u +C > source ./edksetup.sh > @@ -43,6 +40,7 @@ fi > # any), for the edk2 "build" utility. > source ../edk2-funcs.sh > edk2_toolchain=3D$(qemu_edk2_get_toolchain "$emulation_target") > +MAKEFLAGS=3D$(qemu_edk2_quirk_tianocore_1607 "$MAKEFLAGS") > edk2_thread_count=3D$(qemu_edk2_get_thread_count "$MAKEFLAGS") > qemu_edk2_set_cross_env "$emulation_target" > =20 > diff --git a/roms/edk2-funcs.sh b/roms/edk2-funcs.sh > index a9fae7ee891b..3f4485b201f1 100644 > --- a/roms/edk2-funcs.sh > +++ b/roms/edk2-funcs.sh > @@ -251,3 +251,20 @@ qemu_edk2_get_thread_count() > printf '1\n' > fi > } > + > + > +# Work around = by > +# filtering jobserver-related flags out of MAKEFLAGS. Print the result= to the > +# standard output. > +# > +# Parameters: > +# $1: the value of the MAKEFLAGS variable > +qemu_edk2_quirk_tianocore_1607() > +{ > + local makeflags=3D"$1" > + > + printf %s "$makeflags" \ > + | LC_ALL=3DC sed --regexp-extended \ > + --expression=3D's/--jobserver-(auth|fds)=3D[0-9]+,[0-9]+//' \ > + --expression=3D's/-j([0-9]+)?//' > +} > diff --git a/tests/uefi-test-tools/build.sh b/tests/uefi-test-tools/bui= ld.sh > index 8aa7935c43bb..eba7964a163b 100755 > --- a/tests/uefi-test-tools/build.sh > +++ b/tests/uefi-test-tools/build.sh > @@ -29,9 +29,6 @@ export PACKAGES_PATH=3D$(realpath -- "$edk2_dir") > export WORKSPACE=3D$PWD > mkdir -p Conf > =20 > -# Work around . > -export PYTHON_COMMAND=3Dpython2 > - > # Source "edksetup.sh" carefully. > set +e +u +C > source "$PACKAGES_PATH/edksetup.sh" > @@ -46,12 +43,15 @@ fi > source "$edk2_dir/../edk2-funcs.sh" > edk2_arch=3D$(qemu_edk2_get_arch "$emulation_target") > edk2_toolchain=3D$(qemu_edk2_get_toolchain "$emulation_target") > +MAKEFLAGS=3D$(qemu_edk2_quirk_tianocore_1607 "$MAKEFLAGS") > +edk2_thread_count=3D$(qemu_edk2_get_thread_count "$MAKEFLAGS") > qemu_edk2_set_cross_env "$emulation_target" > =20 > # Build the UEFI binary > mkdir -p log > build \ > --arch=3D"$edk2_arch" \ > + -n "$edk2_thread_count" \ > --buildtarget=3DDEBUG \ > --platform=3DUefiTestToolsPkg/UefiTestToolsPkg.dsc \ > --tagname=3D"$edk2_toolchain" \ >=20