Date: Fri, 17 May 2013 08:22:14 -0400 From: Tim Kientzle <kientzle@freebsd.org> To: Werner Thie <werner@thieprojects.ch> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: clear_cache and clang (was Re: Git crash on EABI system.) Message-ID: <6FEBBFCD-C698-48E6-B9CA-D9FCB6A5AD5A@freebsd.org> In-Reply-To: <5195F2CA.2090103@thieprojects.ch> References: <A44A52E5-E878-45CD-B032-F111E5E244BA@freebsd.org> <51949698.80205@thieprojects.ch> <2290084B-D302-4489-BB01-817497901E2B@freebsd.org> <5195F2CA.2090103@thieprojects.ch>
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On May 17, 2013, at 5:05 AM, Werner Thie wrote:
> Tim
>=20
> Maybe you or somebody else can shed some light onto how compiler-rt is =
used for the ARM platform, specifically why am I getting a
>=20
> missing symbol __clear_cache
I suspect it's somehow related to this (from libcompiler_rt/Makefile):
# Don't build clear_cache on ARM with clang as it is a builtin there.
.if ${MACHINE_CPUARCH} !=3D "arm" || ${COMPILER_TYPE} !=3D "clang"
SRCF+=3D clear_cache
.endif
Do you know what code in ctypes for Python is referring to
that symbol? There may be some oddity in how that symbol is
being referenced that's incompatible with the clang built-in.
Tim
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