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To generate the error I went to tools/firmware/hvmloader and ran make while using the latest version of acpica

make -C ../../libacpi  ACPI_BUILD_DIR=/storage/xen/src/xen-4.11.0/tools/firmware/hvmloader DSDT_FILES="dsdt_anycpu.c dsdt_15cpu.c dsdt_anycpu_qemu_xen.c"
make[1]: Entering directory '/storage/xen/src/xen-4.11.0/tools/libacpi'
gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -Wdeclaration-after-statement -DCONFIG_X86 -I/storage/xen/src/xen-4.11.0/tools/libacpi/../../tools/include -D__XEN_TOOLS__ -o /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/mk_dsdt mk_dsdt.c
# Remove last bracket
awk 'NR > 1 {print s} {s=$0}' dsdt.asl > /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl.tmp
cat dsdt_acpi_info.asl >> /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl.tmp
/storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/mk_dsdt --debug=n --maxcpu any  >> /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl.tmp
mv -f /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl.tmp /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl
iasl -vs -p /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.tmp -tc /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.asl
free(): invalid pointer
make[1]: *** [Makefile:78: /storage/xen/src/xen-4.11.0/tools/firmware/hvmloader/dsdt_anycpu.c] Aborted (core dumped)
make[1]: Leaving directory '/storage/xen/src/xen-4.11.0/tools/libacpi'
make: *** [Makefile:72: acpi] Error 2

Unlikely that this is a xen issue; but building fails when using the latest acpica package.

It was something to do with the hvmloader and unable to call free() due to an invalid pointer.

Downgrading acpica to version 20180629 allows the package to compile.

Once I recompile xen to fix my libiscsi issue, I'll upgrade acpica again to try and provide more information.

Orphaned package removal routine* breaks this package. Please fix your depends/makedepends so that they are accurate.

*https://wiki.archlinux.org/index.php/Pacman/Tips_and_tricks#Removing_unused_packages_.28orphans.29

Thanks!

4.11.0 is available and I will test it till next week and update PKGBUILD

@mbroemme: No problem, thanks for reply and for your work on xen package. Have an awesome weekend!

@k96hkh: I believe xen 4.11.0 will come out in the next 2 weeks. Is it okay to wait this 2 weeks and I will update the PKGBUILD as soon as 4.11.0 is out.

I'm afraid I got stuck with same error as "Anonym" and "tendermonster", any idea what I can do to get xen to build? I guess I could build from 4.11-rcX like "tendermonster" but I would prefer to use the AUR package. Cheers!

My lil story on installing xen from aur:

i got the same error what "Anonym commented on 2018-06-21 15:01" got. Then i tried to compile xen myself from gitrepo but failed with save error. I tries fixing it my editing countless c++ files, but at the end i gave up when i encountered "util.o: In function hvmloader_acpi_build_tables': util.c:(.text+0x183e): undefined reference todsdt_anycpu_qemu_xen' util.c:(.text+0x1b52): undefined reference to dsdt_anycpu' util.c:(.text+0x1b65): undefined reference todsdt_15cpu' ovmf.o: In function ovmf_acpi_build_tables': ovmf.c:(.text+0xf8): undefined reference todsdt_anycpu_qemu_xen' seabios.o: In function seabios_acpi_build_tables': seabios.c:(.text+0x25a): undefined reference todsdt_anycpu_qemu_xen' rombios.o: In function rombios_acpi_build_tables': rombios.c:(.text+0x68): undefined reference todsdt_anycpu' rombios.c:(.text+0x7e): undefined reference to `dsdt_15cpu' " errors. I have no idea what really causes it(Makefile in tools/firmware/hvmloader?)

After that I just compiled the more uptodate "i guess" 4.11-rcX from https://github.com/xen-project/xen and all just worked fine.

Just install all required packaged "make gcc lib32-gcc-libs lib32-fakeroot lib32-libltdl seabios patch autoconf pkgconf linux-headers zlib python python-pip python-lxml xorg-server haskell-uuid yajl libaio glib2 bridge-utils bison flex acpica cmake markdown figlet bin86 dev86 python2 python-pip fig2dev wget pandoc patch" and configure; make; install

Just to be on the safe side use python2 and gcc7 also link then to gcc and python with ln -s /usr/bin/python2 /usr/bin/python and ls -s /usr/bin/gcc-7 /usr/bin/gcc

It would ne cool if anyone would notify me if the problem resolves on xen 4.10.1

Much thx and have a sunny day :)

@anon This commit updates the makefile for newer versions of iasl: https://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=858dbaaeda33b05c1ac80aea0ba9a03924e09005