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Date:      Wed, 22 Sep 2010 23:15:47 +0200
From:      Bartosz Stec <admin@kkip.pl>
To:        Rene Ladan <rene@freebsd.org>
Cc:        current@freebsd.org
Subject:   Re: Clang now builds world and kernel, on i386 and amd64
Message-ID:  <4C9A7203.8010701@kkip.pl>
In-Reply-To: <4C9A6A38.4080307@freebsd.org>
References:  <4C99A53E.7060707@FreeBSD.org> <AANLkTi=_ZpYZ7XwHJOYuRMOFCGebRwD=YEYORKnMmC0s@mail.gmail.com> <4C9A32B8.60204@kkip.pl> <4C9A6A38.4080307@freebsd.org>

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  On 2010-09-22 22:42, Rene Ladan wrote:
>>
>> Just tried it. World has been builded without any problems, but stge
>> kernel module failed to compile:
>>
>> ===>  stge (all)
>> clang -O2 -pipe -march=athlon-xp -fno-strict-aliasing -D_KERNEL
>> -DKLD_MODULE -nostdinc   -DHAVE_KERNEL_OPTION_HEADERS -include
>> /usr/obj/usr/src/sys/ATHLON9/opt_global.h -I. -I@ -I@/contrib/altq
>> -fno-common  -I/usr/obj/usr/src/sys/ATHLON9  -mno-mmx -mno-3dnow
>> -mno-sse -mno-sse2 -mno-sse3 -ffreestanding -fstack-protector
>> -std=iso9899:1999 -fstack-protector -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/stge/../../dev/stge/if_stge.c
>> /usr/src/sys/modules/stge/../../dev/stge/if_stge.c:1947:5: error:
>> 'break' statement not in loop or switch statement
>>                                  break;
>>                                  ^
>> /usr/src/sys/modules/stge/../../dev/stge/if_stge.c:1953:6: error:
>> 'break' statement not in loop or switch statement
>>                                          break
>>
> Hmm, works for me:
> acer# ls -l /boot/kernel/if_stge.ko*
> -r-xr-xr-x  1 root  wheel   39344 Sep 22 13:34 /boot/kernel/if_stge.ko
> -r-xr-xr-x  1 root  wheel  218248 Sep 22 13:34
> /boot/kernel/if_stge.ko.symbols
> acer#
>
> This is with the default GENERIC kernel.
>
> Rene
Problem wasn't clang related, but caused by stge changes in r212973, and 
it has already been fixed (in r213000).
I will post comparison of building times and results using 
gcc/clang/ccache/noccache on my box soon :)



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