Public bug reported: Hello. I was trying to compile the xen tools for enabling GVT for my integrated intel gpu with xen and the compilation stopped like this :
gcc -m32 -march=i686 -DBUILD_ID -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Wno-unused-but-set-variable -Wno-unused-local-typedefs -O2 -fomit-frame-pointer -D__XEN_INTERFACE_VERSION__=XEN_LATEST_INTERFACE_VERSION -MMD -MF .tcgbios.o.d -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -mno-tls-direct-seg-refs -DNDEBUG -Werror -fno-stack-protector -fno-exceptions -fno-builtin -msoft-float -I/etc/xen/igvtg-xen/tools/firmware/rombios/32bit/tcgbios/../../../../../tools/include -I.. -I../.. -I../../../../libacpi -fno-pic -fno-PIE -c -o tcgbios.o tcgbios.c tcgbios.c: In function ‘TCGInterruptHandler’: tcgbios.c:1519:33: error: taking address of packed member of ‘struct ’ may result in an unaligned pointer value [-Werror=address-of-packed-member] 1519 | ®s->u.r32.edx); | ^~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors I see that thig bug has been discussed here : https://bugs.gentoo.org/689082 and resolved here : https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c58b86194ce19d54a2f47d4712cb237b1f880ebb but on gentoo ! basically I don't know if (and how) I can fix this error on ubuntu 20.04. I don't know if I can use the patches suggested on the gentoo gitweb also on ubuntu 20.04. You can find the discussion here : https://github.com/intel/gvt- linux/issues/168 I'm using GCC version 9. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1892205 Title: tcgbios.c:1519:33: error: taking address of packed member of ‘struct ’ may result in an unaligned pointer value [-Werror=address-of-packed- member] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1892205/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
