Date: Sun, 20 Dec 2015 12:16:11 +0200 From: Jukka Ukkonen <jau789@gmail.com> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: gcc5 caused an unexpected error for 128 bit floating point numbers Message-ID: <56767FEB.1080303@gmail.com>
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[-- Attachment #1 --] Hello all, I installed gcc5 from ports (gcc5-5.3.0) expecting it to be able to handle 128 bit floating point numbers on ppc64. It turns out, this does not work quite right. Apparently gcc5 tries to compile any basic 128 bit floating point operations to calls to functions like __gcc_qmul, _gcc_qdiv, etc. If such function wrappers are used at all, I guess they should be implemented as inline assebler wrappers or something instead of genuine functions, right? --jau [-- Attachment #2 --] /tmp//ccUnqEJs.o: In function `ppc64_float128_test': ppc64_float128_test.c:(.text+0xa8): undefined reference to `__gcc_qmul' ppc64_float128_test.c:(.text+0xdc): undefined reference to `__gcc_qadd' ppc64_float128_test.c:(.text+0x100): undefined reference to `__gcc_qmul' ppc64_float128_test.c:(.text+0x180): undefined reference to `__gcc_qdiv' ppc64_float128_test.c:(.text+0x190): undefined reference to `__gcc_qadd' /tmp//ccUnqEJs.o: In function `main': ppc64_float128_test.c:(.text.startup+0xd8): undefined reference to `__gcc_qmul' ppc64_float128_test.c:(.text.startup+0x108): undefined reference to `__gcc_qadd' ppc64_float128_test.c:(.text.startup+0x12c): undefined reference to `__gcc_qmul' ppc64_float128_test.c:(.text.startup+0x1ac): undefined reference to `__gcc_qdiv' ppc64_float128_test.c:(.text.startup+0x1bc): undefined reference to `__gcc_qadd' collect2: error: ld returned 1 exit statushelp
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