Re: sysutils/xenkernel4[68] build errors on NetBSD 7

[gary%duzan.org@localhost]

"Roy Marples" <roy%marples.name@localhost> wrote:
=> On 12/07/2017 11:15, Gary Duzan wrote:
=>> if : false; then rm -f
=>> /usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/xen.efi; echo 'EFI
=>> support disabled'; fi
=>> EFI support disabled
=>> rm -f
=>> /usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/.xen.efi.[0-9]*
=>> ld -L/usr/lib -Wl,-R/usr/lib -L/usr/pkg/lib -Wl,-R/usr/pkg/lib
=>> -melf_x86_64     -melf_x86_64  -T xen.lds -N prelink.o \
=>>    
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/symbols-dummy.o
=>> -o /usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/.xen-syms.0
=>> prelink.o: In function `do_domctl':
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/domctl.c:381:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/domctl.c:1141:
=>> undefined reference to `__stack_chk_fail'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/domctl.c:1141:(.text+0x394f):
=>> relocation truncated to fit: R_X86_64_PLT32 against undefined symbol
=>> `__stack_chk_fail'
=>> prelink.o: In function `do_xen_version':
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/kernel.c:231:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/kernel.c:363:
=>> undefined reference to `__stack_chk_fail'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/common/kernel.c:363:(.text+0x11401):
=>> relocation truncated to fit: R_X86_64_PLT32 against undefined symbol
=>> `__stack_chk_fail'
=>> [...]
=>> prelink.o: In function `alternative_instructions':
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/alternative.c:187:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/alternative.c:211:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/alternative.c:211:
=>> undefined reference to `__stack_chk_fail'
=>> prelink.o: In function `construct_dom0':
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/domain_build.c:878:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/domain_build.c:1640:
=>> undefined reference to `__stack_chk_guard'
=>>
/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/arch/x86/domain_build.c:1640:
=>> undefined reference to `__stack_chk_fail'
=>> Makefile:107: recipe for target
=>> '/usr/pkg/work/sysutils/xenkernel46/work/xen-4.6.5/xen/xen-syms' failed
=>>
=>>    sysutils/xenkernel48 gets similar results, but both build fine
=>> on NetBSD 8.
=>
=> I see the same on -current.
=> Are you using clang?
=> If so, have you tried gcc?

   No, I'm using gcc. The build looks like it is using
-fno-stack-protector, which should prevent this, but it seems that
cwrappers is putting it back. I'll look deeper when I get a chance.

                              Gary Duzan