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Date:      Mon, 20 Feb 2012 09:54:11 +0800
From:      Jia-Shiun Li <jiashiun@gmail.com>
To:        freebsd-current@freebsd.org
Subject:   Failed to compile current kernel with llvm/clang
Message-ID:  <CAHNYxxMo5rhjvpqvfVi5g83uP253qyMBv9P-vJH5Zr-aBar0Qg@mail.gmail.com>

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Hi all,

I am trying to build world and kernel with llvm according to
instructions on wiki:

http://wiki.freebsd.org/BuildingFreeBSDWithClang

buildworld is fine, but when building GENERIC kernel it failed on hpt27xx:

=3D=3D=3D> hpt27xx (all)
/usr/src/sys/modules/hpt27xx/../../dev/hpt27xx/osm_bsd.c:1180:25:
error: format string is not a string literal (potentially insecure)
[-Werror,-Wformat-security]
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 S_IRUSR =
| S_IWUSR, driver_name);
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ^~~~~~~~~~~
@/dev/hpt27xx/hpt27xx_config.h:46:21: note: expanded from:
#define driver_name hpt27xx_driver_name
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ^~~~~~~~~~~~~~~~~~~

I cannot find symbol hpt27xx_driver_name in that directory. Is it
expanded from some macros I am not aware of?


BTW clang does generate much friendly and useful warnings so far as I saw.


Regards,
Jia-Shiun



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