Re: r349100: buildworld does not compile (ld: error: duplicate symbol: sse42_crc32c)

On 6/16/19 8:49 AM, Rainer Hurling wrote:
> If I try to build world almost recent sources (r349100) on HEAD amd64
> (r348775), it stops with the following error:
> 
> 
> [..snip..]
> (cd /usr/src/tests/sys/kern &&  DEPENDFILE=.depend.libkern_crc32
> NO_SUBDIR=1 make -f /usr/src/tests/sys/kern/Makefile _RECURSING_PROGS=t
> PROG=libkern_crc32 )
> echo libkern_crc32: /usr/obj/usr/src/amd64.amd64/tmp/usr/lib/libc.a
> /usr/obj/usr/src/amd64.amd64/tmp/usr/lib/libprivateatf-c.a >>
> .depend.libkern_crc32
> cc -target x86_64-unknown-freebsd13.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin  -O2 -pipe
> -DUSERSPACE_TESTING -MD  -MF.depend.libkern_crc32.libkern_crc32.o
> -MTlibkern_crc32.o -std=gnu99 -fstack-protector-strong -Wsystem-headers
> -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter
> -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
> -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body
> -Wno-string-plus-int -Wno-unused-const-variable
> -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality
> -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef
> -Wno-address-of-packed-member   -Qunused-arguments   -c
> /usr/src/tests/sys/kern/libkern_crc32.c -o libkern_crc32.o
> cc -target x86_64-unknown-freebsd13.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -O2 -pipe -DUSERSPACE_TESTING
> -std=gnu99 -fstack-protector-strong -Wsystem-headers -Werror -Wall
> -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes
> -Wmissing-prototypes -Wpointer-arith -Wno-uninitialized
> -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int
> -Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value
> -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
> -Wno-unused-local-typedef -Wno-address-of-packed-member
> -Qunused-arguments -DUSERSPACE_TESTING    -o libkern_crc32
> libkern_crc32.o  /usr/src/sys/libkern/x86/crc32_sse42.c -lprivateatf-c
> /usr/src/sys/libkern/x86/crc32_sse42.c -lprivateatf-c

Hmm /usr/src/sys/libkern/x86/crc32_sse42.c is listed twice unless I'm
reading it wrong. It's from an LDADD. I'm looking into it a bit more...

> ld: error: duplicate symbol: sse42_crc32c
>>>> defined at crc32_sse42.c
>>>>            /tmp/crc32_sse42-2988bd.o:(sse42_crc32c)
>>>> defined at crc32_sse42.c
>>>>            /tmp/crc32_sse42-bcf3d2.o:(.text+0x3C0)
> cc: error: linker command failed with exit code 1 (use -v to see invocation)
> *** [libkern_crc32] Error code 1
> make[6]: stopped in /usr/src/tests/sys/kern
> 1 error
> make[6]: stopped in /usr/src/tests/sys/kern
> *** [libkern_crc32] Error code 2
> 
> 
> This happens with two older cpus, Intel (Core 17-4770) and AMD (Phenom
> II X6 1090T).
> 
> Am I the only one, who observes this breakage? Thanks for any hint.
> 
> Regards,
> Rainer Hurling
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"
> 


-- 
Regards,
Bryan Drewery