Date: Sun, 26 Aug 2007 13:38:35 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnisec.de> To: 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: <200708261338.35874.h.schmalzbauer@omnisec.de> In-Reply-To: <46D10B10.2060608@FreeBSD.org> References: <200708210339.l7L3dUX0038042@repoman.freebsd.org> <200708260216.14210.h.schmalzbauer@omnisec.de> <46D10B10.2060608@FreeBSD.org>
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Am Sonntag, 26. August 2007 07:09:36 schrieb Constantine A. Murenin: [...] > > /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? It's a core2 (E6420) machine, running amd64 -current from today (so gcc 4.2.1 with default -O2). In make.conf I have CPUTYPE?=core2, but removing the CPUTYPE doesn't make any difference, it fails exactly with the same error. Makeoption is -j5 as it's a ULE kernel but that's completely irrelevant I think. > 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. Right, kernel compiles fine now. Thanks, -Harry
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