Re: [osol-code] -fast option for kernel code with memset(9F)
Sherry Moore wrote: The Sun Studio's equivalent of GCC's -ffreestanding -mcmodel=kernel -mno-red-zone is -xmodel=kernel This is exactly what makes me wonder: I specify this option, and if I tell the compiler I am compiling for the kernel, it should know that something like _memset() does not exist! Joachim -- Joachim Worringen, Software Architect, Dolphin Interconnect Solutions phone ++49/(0)228/324 08 17 - http://www.dolphinics.com ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
Re: [osol-code] -fast option for kernel code with memset(9F)
Joachim Worringen wrote: Greeting, using Sun cc (cc: Sun C 5.9 SunOS_i386 Patch 124868-01 2007/07/12), I compile my kernel module with -fast. This results in memset(9F) calls appearing as _memset calls in the object file, which can not be resolved on a SXCE 106 kernel. Is this a problem with my include files and defines, the compiler version, usage of -fast for kernel code? P.S: -O3 works. Joachim - Joachim Worringen, Software Architect, Dolphin Interconnect Solutions phone ++49/(0)228/324 08 17 - http://www.dolphinics.com ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolar is-code The -fast option expands to many other options involving optimization. From the Sun Studio 12 man page for cc: quote These options are turned on for -fast: -fns (SPARC, x86) -fsimple=2 (SPARC, x86) -fsingle (SPARC, x86) -nofstore (x86) -xalias_level=basic (SPARC, x86) -xbuiltin=%all (SPARC, x86) -xdepend (SPARC, x86) -xlibmil (SPARC, x86) -xlibmopt (SPARC) -xmemalign=8s (SPARC) -xO5 (SPARC, x86) -xprefetch=auto,explicit (SPARC) -xregs=frameptr (x86) -xtarget=native (SPARC, x86) /quote One (or more) of those is causing your call to memset() to be replaced with a call to _memset(). You can probably add those options to your build one at a time until the problem appears. -- This message posted from opensolaris.org ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
Re: [osol-code] -fast option for kernel code with memset(9F)
The Sun Studio's equivalent of GCC's -ffreestanding -mcmodel=kernel -mno-red-zone is -xmodel=kernel Sherry On Sat, Feb 07, 2009 at 06:11:30PM -0800, Garrett D'Amore wrote: Andrew C. Henle wrote: Joachim Worringen wrote: Greeting, using Sun cc (cc: Sun C 5.9 SunOS_i386 Patch 124868-01 2007/07/12), I compile my kernel module with -fast. This results in memset(9F) calls appearing as _memset calls in the object file, which can not be resolved on a SXCE 106 kernel. Is this a problem with my include files and defines, the compiler version, usage of -fast for kernel code? P.S: -O3 works. Joachim - Joachim Worringen, Software Architect, Dolphin Interconnect Solutions phone ++49/(0)228/324 08 17 - http://www.dolphinics.com ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolar is-code The -fast option expands to many other options involving optimization. From the Sun Studio 12 man page for cc: quote These options are turned on for -fast: -fns (SPARC, x86) -fsimple=2 (SPARC, x86) -fsingle (SPARC, x86) -nofstore (x86) -xalias_level=basic (SPARC, x86) -xbuiltin=%all (SPARC, x86) -xdepend (SPARC, x86) -xlibmil (SPARC, x86) -xlibmopt (SPARC) -xmemalign=8s (SPARC) -xO5 (SPARC, x86) -xprefetch=auto,explicit (SPARC) -xregs=frameptr (x86) -xtarget=native (SPARC, x86) /quote Its probably -xbuiltin=%all. I seem to recall an option (don't recall the precise one) that was akin to GCC's -ffreestanding (which indicates that the compiler should not make any assumptions about standard libraries.) -- Garrett One (or more) of those is causing your call to memset() to be replaced with a call to _memset(). You can probably add those options to your build one at a time until the problem appears. ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code -- Sherry Moore, Solaris Core Kernel http://blogs.sun.com/sherrym ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
Re: [osol-code] -fast option for kernel code with memset(9F)
Joachim Worringen wrote: Greeting, using Sun cc (cc: Sun C 5.9 SunOS_i386 Patch 124868-01 2007/07/12), I compile my kernel module with -fast. This results in memset(9F) calls appearing as _memset calls in the object file, which can not be resolved on a SXCE 106 kernel. Is this a problem with my include files and defines, the compiler version, usage of -fast for kernel code? P.S: -O3 works. Joachim -- Joachim Worringen, Software Architect, Dolphin Interconnect Solutions phone ++49/(0)228/324 08 17 - http://www.dolphinics.com ___ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
