[Buildroot] ltp-testsuite: build failures of upcoming release

[Buildroot] ltp-testsuite: build failures of upcoming release

[Petr Vorel]

Hi Fabrice, all,

upcoming LTP release fails on newly added KVM tests [1]

* bootlin-x86-64-glibc [25/45]: FAILED
* bootlin-x86-64-musl [26/45]: FAILED
br-test-pkg/bootlin-x86-64-glibc/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-buildroot-linux-gnu/11.2.0/../../../../x86_64-buildroot-linux-gnu/bin/ld: /tmp/ccMDUPOo.o: in function `handle_page_fault':
kvm_pagefault01.c:(.text+0x5d): undefined reference to `__stack_chk_fail'
collect2: error: ld returned 1 exit status
make[4]: *** [br-test-pkg/bootlin-x86-64-glibc/build/ltp-testsuite-6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/Makefile:55: kvm_pagefault01-payload.o] Error 1

$ cd testcases/kernel/kvm/ && make V=1 kvm_pagefault01
/home/pvorel/br-test-pkg/bootlin-x86-64-glibc/host/bin/x86_64-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -I/home/pvorel/br-test-pkg/bootlin-x86-64-glibc/build/ltp-testsuite-6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/include -I../../../include -I../../../include -I../../../include/old/ -DCOMPILE_PAYLOAD -ffreestanding -O2 -Wall -fno-asynchronous-unwind-tables -mno-mmx -mno-sse -fno-pie -nostdlib -Wl,--build-id=none -no-pie -Wl,-T/home/pvorel/br-test-pkg/bootlin-x86-64-glibc/build/ltp-testsuite-6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/linker/x86_64.lds -o kvm_pagefault01-payload.elf kvm_pagefault01.c lib_guest.o bootstrap_x86_64.o lib_x86.o
/home/pvorel/br-test-pkg/bootlin-x86-64-glibc/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-buildroot-linux-gnu/11.2.0/../../../../x86_64-buildroot-linux-gnu/bin/ld: /tmp/ccFuAviL.o: in function `handle_page_fault':
kvm_pagefault01.c:(.text+0x5d): undefined reference to `__stack_chk_fail'
collect2: error: ld returned 1 exit status
make: *** [Makefile:51: kvm_pagefault01-payload.o] Error 1


* br-i386-pentium-mmx-musl [31/45]: FAILED
* br-i386-pentium4-full [32/45]: FAILED
br-test-pkg/br-i386-pentium-mmx-musl/host/opt/ext-toolchain/bin/../lib/gcc/i586-buildroot-linux-musl/9.3.0/../../../../i586-buildroot-linux-musl/bin/ld: i386:x86-64 architecture of input file `bootstrap_x86.o' is incompatible with i386 output
collect2: error: ld returned 1 exit status

$ cd testcases/kernel/kvm/ && make V=1
br-test-pkg/br-i386-pentium4-full/host/bin/i686-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FORTIFY_SOURCE=2 -Ibr-test-pkg/br-i386-pentium4-full/build/ltp-testsuite-6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/include -I../../../include -I../../../include -I../../../include/old/ -DCOMPILE_PAYLOAD -ffreestanding -O2 -Wall -fno-asynchronous-unwind-tables -mno-mmx -mno-sse -fno-pie -nostdlib -Wl,--build-id=none -no-pie -Wl,-Tbr-test-pkg/br-i386-pentium4-full/build/ltp-testsuite-6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/linker/x86.lds -o kvm_pagefault01-payload.elf kvm_pagefault01.c lib_guest.o bootstrap_x86.o lib_x86.o
br-test-pkg/br-i386-pentium4-full/host/opt/ext-toolchain/bin/../lib/gcc/i686-buildroot-linux-uclibc/9.3.0/../../../../i686-buildroot-linux-uclibc/bin/ld: i386:x86-64 architecture of input file `bootstrap_x86.o' is incompatible with i386 output

HOST_CPU is x86, which should be correct. Is this a bug in Makefile [2] which
might expect only 32bit build on x86_64, not real 32bit toolchain?

Thanks for any hint what could be wrong.

Kind regards,
Petr

[1] https://github.com/linux-test-project/ltp/blob/6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/kvm_pagefault01.c
[2] https://github.com/linux-test-project/ltp/blob/6dd6876ff063ea77a6c626dc8b278609746aff5f/testcases/kernel/kvm/Makefile
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