Date: Tue, 07 Feb 2017 17:32:32 -0500 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: clang 4.0.0 with_lld_is_ld build Message-ID: <2232674.hLfPeFGiXF@hbsd-dev-laptop>
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Hey All,
On a system with clang 4.0.0 already installed with lld as ld, I get th=
e=20
following error compiling the latest HEAD of projects/clang400-import w=
hen=20
WITH_LLD_IS_LD is set:
=3D=3D=3D> usr.bin/clang/lld (obj,all,install)
In file included from=20
/scratch/fbsd/contrib/llvm/tools/lld/ELF/InputFiles.cpp:19:
In file included from=20
/scratch/fbsd/contrib/llvm/include/llvm/Bitcode/BitcodeReader.h:19:
In file included from=20
/scratch/fbsd/contrib/llvm/include/llvm/IR/ModuleSummaryIndex.h:25:
In file included from /scratch/fbsd/contrib/llvm/include/llvm/IR/Module=
.h:21:
In file included from /scratch/fbsd/contrib/llvm/include/llvm/IR/Functi=
on.h:24:
In file included from /scratch/fbsd/contrib/llvm/include/llvm/IR/Argume=
nt.h:19:
/scratch/fbsd/contrib/llvm/include/llvm/IR/Attributes.h:71:14: fatal er=
ror:=20
'llvm/IR/Attributes.gen' file not found
#include "llvm/IR/Attributes.gen"
Steps to reproduce:
1. Build and install a world with WITH_LLD_IS_LD set. The first build w=
ill=20
succeed.
2. After the new world is installd, verify that /usr/bin/ld is in fact =
lld by=20
running `ld -version`
3. If not, then set the symlink to /usr/bin/ld.lld
4. rm -rf the object directory (for me: /usr/obj/scratch/clang400)
5. do a new world build with WITH_LLD_IS_LD set. This will fail.
Thanks,
=2D-=20
Shawn Webb
Cofounder and Security Engineer
HardenedBSD
GPG Key ID: 0x6A84658F52456EEE
GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE
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