Date: Mon, 30 Jun 2014 00:55:06 -0700 From: Mark Millard <markmi@dsl-only.net> To: freebsd-ppc@freebsd.org Subject: powerpc64 10.0-STABLE uses -mlongcall , -mcall-aixdesc , and -Wa, -many --none of which does clang 3.4.1 support Message-ID: <7AB6B15C-2FB0-41A5-915D-ADEC175D78B8@dsl-only.net>
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buildworld uses -mlongcall for /usr/src/lib/csu/powerpc64/ and so clang = 3.4.1 stops there. buildkernel uses -mcall-aixdesc and -Wa,-many for = /usr/obj/usr/src/sys/GENERIC64/ and so clang stops there as well. Technique of discovery: Starting from FreeBSD-10.0-STABLE-powerpc-powerpc64-20140622-r267746-disk1.iso [with /usr/ports/Mk/Uses/compiler.mk still reverted so it does not avoid = clang so much --but I'v not gotten to devel/boost-all testing yet] and with /etc/make.conf being: CPP=3Dclang-cpp CC=3Dclang CXX=3Dclang++ then following script tries buildworld and buildkernel: #!/bin/sh rm -fr /usr/obj/* # # Presume a free-standing clang c++ is available for bootstrapping: # One is in 10.0-STABLE for the specifics here. # # Convert to having hosted implementation material in place. # cd /usr/src/lib/libcxxrt make clean make make install # cd /usr/src/lib/libc++ make clean make make install # # Then with the hosted implementation in place... # make buildworld make buildkernel In essence: it bootstraps from a freestanding clang based c++ = implementation to a hosted c++ implementation before any other possible = other uses of the c++ compiler (including before llvm and/or clang are = rebuilt: They require a hosted implementation.). libcxxrt and libc++ built without reporting errors. The lack of && = between make buildworld and make buildkernel allowed the script file to = show where both stopped: I was more interested in that information than = continuing to build without starting over. I will probably see what happens if I repeat my boost-all experiment: = rebuild all the prerequisites in this context and then retry boost-all = (if it it gets that far). That would mean that icu had been built by = clang (if it is successful). =3D=3D=3D Mark Millard markmi@dsl-only.net
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