Date: Sun, 26 Aug 2007 01:09:36 -0400 From: "Constantine A. Murenin" <cnst@FreeBSD.org> To: Harald Schmalzbauer <h.schmalzbauer@omnisec.de>, freebsd-current@FreeBSD.org Cc: Alexander Kabaev <kan@FreeBSD.org>, "Constantine A. Murenin" <cnst@FreeBSD.org> Subject: Re: GSoC2007: cnst-sensors.2007-08-20.patch Message-ID: <46D10B10.2060608@FreeBSD.org> In-Reply-To: <200708260216.14210.h.schmalzbauer@omnisec.de> References: <200708210339.l7L3dUX0038042@repoman.freebsd.org> <46D0BEEF.1020601@FreeBSD.org> <200708260208.35700.h.schmalzbauer@omnisec.de> <200708260216.14210.h.schmalzbauer@omnisec.de>
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On 25/08/2007 20:16, Harald Schmalzbauer wrote: >>>http://p4web.freebsd.org/@sr=125633@//depot/projects/soc2007/cnst-sensors/sys.dev.coretemp/coretemp.c ... > cc -O2 -fno-strict-aliasing -pipe -march=nocona -D_KERNEL -DKLD_MODULE -std=c99 -nostdinc -DHAVE_KERNEL_OPTION_HEADERS -include /usr/obj/usr/src/sys/KORSO/opt_global.h -I. -I@ -I@/contrib/altq -finline-limit=8000 --param > inline-unit-growth=100 --param > large-function-growth=1000 -fno-common -g -fno-omit-frame-pointer -I/usr/obj/usr/src/sys/KORSO -mcmodel=kernel -mno-red-zone -mfpmath=387 -mno-sse -mno-sse2 -mno-mmx -mno-3dnow -msoft-float -fno-asynchronous-unwind-tables -ffreestanding -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -Wundef -Wno-pointer-sign -fformat-extensions -c /usr/src/sys/modules/coretemp/../../dev/coretemp/coretemp.c > /usr/src/sys/modules/coretemp/../../dev/coretemp/coretemp.c: In > function 'coretemp_refresh': > /usr/src/sys/modules/coretemp/../../dev/coretemp/coretemp.c:297: error: SSE > register return with SSE disabled > *** Error code 1 > 1 error I cannot reproduce this bug on i386 with gcc 4.2.0 20070514, so this sounds like a bug in the compiler, either for allowing me to compile the code that shouldn't compile (and run flawlessly -- coretemp is totally tested here), or for not allowing you to compile the code that should compile. (I'll recompile my compiler tomorrow to catch up on the updates to gcc 4.2.1 to see if that changes anything.) Could you please provide more details, e.g. platform (I guess it is amd64?), compiler version and any changes you've made to the tree? This is the code that seems to generate this error with your compiler: s->value = temp * 1e6 + 273.15e6; Where s->value is of type int64_t, and temp is of type int. Does anyone know if the e notation should not be used in this context? In the meantime, I assume that changing that line to: s->value = temp * 1000000 + 273150000; must solve the problem. C.
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