Toolchain components were historically statically linked. They became
normal dynamically linked executables in commit 6ab18ea64d. There is
no need to keep a special case build option for the toolchain; users who
want statically linked toolchain (or any other) components can use the
existing NO_SHARED knob.
Reviewed by: dim, sjg
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41266
Some utilities under usr.bin/clang were only linked to libz, while most
others were linked to libz and libzstd. Make this consistent, and remove
repetition, by moving these LIBADD lines to usr.bin/clang/clang.prog.mk
and usr.bin/clang/clang.prog.mk.
MFC after: 3 days
A few Makefiles overrode LINKS and MLINKS when WITH_LLVM_BINUTILS was
set, which caused some llvm- prefixed tools to disappear. One such case
was llvm-ranlib, which some ports invoke explicitly.
Use += when adding to LINKS and MLINKS under WITH_LLVM_BINUTILS.
PR: 270955, 270956, 270959
Submitted by: jbeich
Reviewed by: arichardson
Fixes: 021385aba5 ("Add WITH_LLVM_BINUTILS to install LLVM binuti...")
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D39747
This does not remove LLVM_TARGET_MIPS. Note that the only
MACHINE_ARCH values ending in 'hf' were all MIPS architectures, hence
removing the pattern matches for 'hf'.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39331
This reverts commit ab80f0b21f. The intent
of this change was to avoid possible compilation errors when certain
.inc files were not regenerated, but the method turns out to cause way
more rebuilds than anticipated. Another method will have to be found,
and in the mean time, WITH_CLEAN is the solution that always works.
Fixes: ab80f0b21f
This flag ensures that the tblgen tools do not actually touch the
produced .inc file, if there are no changes to the contents. In turn,
this may prevent a number of rebuilds of files that include such .inc
files, saving build time.
While here, ensure that the shell invocations to locate the used tblgen
binary do not show unnecessary error messages.
Reported by: des
MFC after: 1 week
When doing a fully incremental build (with WITHOUT_CLEAN enabled), from
a commit before llvm 15 was merged (3264f6b88f), to a commit after
that, a number of .inc files were not regenerated. This could lead to
unexpected compilation errors when these .inc files were included from
llvm-project sources, similar to:
In file included from /usr/src/contrib/llvm-project/clang/lib/CodeGen/CGBuiltin.cpp:8268:
/usr/obj/usr/src/amd64.amd64/lib/clang/libclang/clang/Basic/arm_mve_builtin_cg.inc:279:18: error: no matching constructor for initialization of 'clang::CodeGen::Address'
Address Val2 = Address(Val1, CharUnits::fromQuantity(2));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Work around this by making the .inc files dependent on the tblgen binary
used for generating them. E.g., we can relatively safely assume that if
the binary gets updated, the .inc files must also be updated. (Although
this is not 100% optimal, the gain by complicating things even more is
probaby not worth the effort.)
MFC after: 3 days
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D38770
Instead of providing no /usr/bin/objdump when LLVM_BINUTILS is false.
PR: 267854 [exp-run]
Reviewed by: dim
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37445
A small reduction in build infrastructure complexity; when we had both
Clang and GCC in the tree it was useful to have both built, and choose
one or the other to install as /usr/bin/cc. Now only Clang is in the
tree, and there is no point in building and installing base Clang but
not providing it as cc (and c++, cpp).
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37075
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-13-init-16847-g88e66fa60ae5, the last commit before
the upstream release/13.x branch was created.
PR: 258209
MFC after: 2 weeks
Just as elftoolchain's objcopy doubles as strip, so does LLVM's. This
ensures that a strip binary is still present for WITH_LLVM_BINUTILS
builds. Note that we do not currently have a committed copy of the
manpage generated from the rST source so no manpage is installed for
(llvm-)strip.
Reported by: Shawn Webb <shawn.webb@hardenedbsd.org>
Tested by: Shawn Webb <shawn.webb@hardenedbsd.org>
MFC after: 1 week
When WITH_LLVM_BINUTILS is set, we will install the LLVM binutils as
ar/ranlib/nm/objcopy/etc. instead of the elftoolchain ones.
Having the LLVM binutils instead of the elftoolchain ones allows us to use
features such as LTO that depend on binutils that understand LLVM IR.
Another benefit will be an improved user-experience when compiling with
AddressSanitizer, since ASAN does not symbolize backtraces correctly if
addr2line is elftoolchain addr2line instead of llvm-symbolizer.
See https://lists.freebsd.org/archives/freebsd-toolchain/2021-July/000062.html
for more details.
This is currently off by default but will be turned on by default at some
point in the near future.
Reviewed By: emaste
Differential Revision: https://reviews.freebsd.org/D31060
The tablegen binaries are only needed to build software that uses
LLVM's infrastructure for command line options,
disassembler tables, etc. They are not user-facing binaries and
should therefore not be installed by default.
Reviewed By: emaste
Differential Revision: https://reviews.freebsd.org/D31058
If MK_DEBUG_FILES=no then the Clang link rule has clang as .TARGET,
rather than clang.full, causing the implicit ${CFLAGS.${.TARGET:T}} to
be CFLAGS.clang, and thus pull in flags intended for when your compiler
is Clang, not when linking Clang itself. This doesn't matter if your
compiler is in fact Clang, but it breaks using GCC as, for example,
bsd.sys.mk adds -Qunused-arguments to CFLAGS.clang. This is seen when
trying to build a bootstrap toolchain on Linux where GCC is the system
compiler.
Thus, introduce a new internal NO_TARGET_FLAGS variable that is set by
Clang to disable the addition of these implicit flags. This is a bigger
hammer than necessary, as flags for .o files would be safe, but that is
not needed for Clang.
Note that the same problem does not arise for LDFLAGS when building LLD
with BFD, since our build produces a program called ld.lld, not plain
lld (unlike upstream, where ld.lld is a symlink to lld so they can
support multiple different flavours in one binary).
Suggested by: sjg
Fixes: 31ba4ce889 ("Allow bootstrapping llvm-tblgen on macOS and Linux")
MFC after: 1 week
Reviewed by: dim, imp, emaste
Differential Revision: https://reviews.freebsd.org/D31532
This is needed in order to build various LLVM binutils (e.g. addr2line)
as well as clang/lld/lldb.
Co-authored-by: Jessica Clarke <jrtc27@FreeBSD.org>
Test Plan: Compiles on ubuntu 18.04 and macOS 11.4
Reviewed By: dim
Differential Revision: https://reviews.freebsd.org/D31057
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-12-init-17869-g8e464dd76bef, the last commit before the
upstream release/12.x branch was created.
PR: 255570
MFC after: 6 weeks
Since elftoolchain's cxxfilt is rather far behind on features, and we
ran into several bugs, add an option to use llvm-cxxfilt as an drop-in
replacement.
It supports the same options as elftoolchain cxxfilt, though it doesn't
have support for old ARM (C++ Annotated Reference Manual, not the CPU)
and GNU v2 manglings. But these are irrelevant in 2020.
Note: as we already compile the required libraries as part of libllvm,
this will not add any significant build time either.
PR: 250702
Reviewed by: emaste, yuri
Differential Revision: https://reviews.freebsd.org/D27071
MFC after: 2 weeks
llvmorg-10.0.1-rc2-0-g77d76b71d7d.
Also add a few more llvm utilities under WITH_CLANG_EXTRAS:
* llvm-dwp, a utility for merging DWARF 5 Split DWARF .dwo files into
.dwp (DWARF package files)
* llvm-size, a size(1) replacement
* llvm-strings, a strings(1) replacement
MFC after: 3 weeks
* bugpoint.1
* clang.1
* llc.1
* lldb.1
* lli.1
* llvm-ar.1
* llvm-as.1
* llvm-bcanalyzer.1
* llvm-cov.1
* llvm-diff.1
* llvm-dis.1
* llvm-dwarfdump.1
* llvm-extract.1
* llvm-link.1
* llvm-mca.1
* llvm-nm.1
* llvm-pdbutil.1
* llvm-profdata.1
* llvm-symbolizer.1
* llvm-tblgen.1
* opt.1
Add newly generated manpages for:
* llvm-addr2line.1 (this is an alias of llvm-symbolizer)
* llvm-cxxfilt.1
* llvm-objcopy.1
* llvm-ranlib.1 (this is an alias of llvm-ar)
Note that llvm-objdump.1 is an exception, as upstream has both a plain
.1 file, and a .rst variant. These will have to be reconciled upstream
first.
MFC after: 3 days
clang-format is enabled conditional on either WITH_CLANG_EXTRAS or
WITH_CLANG_FORMAT. Some sources in libclang are build conditional on
either rule, and obviously the clang-format binary itself depends on the
rule.
clang-format could still use a manual page.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D25427
Clang from 9.0.0 onwards already has the necessary relocation range
extenders, so this workaround is no longer needed (it produces longer
and slower code). Tested on real hardware, and in cross-compile
environment.
Submitted by: mmel
As described in Warner's email message[1] to the FreeBSD-arch mailing
list we have reached GCC 4.2.1's retirement date. At this time all
supported architectures either use in-tree Clang, or rely on external
toolchain (i.e., a contemporary GCC version from ports).
GCC 4.2.1 was released July 18, 2007 and was imported into FreeBSD later
that year, in r171825. GCC has served us well, but version 4.2.1 is
obsolete and not used by default on any architecture in FreeBSD. It
does not support modern C and does not support arm64 or RISC-V.
Thanks to everyone responsible for maintaining, updating, and testing
GCC in the FreeBSD base system over the years.
So long, and thanks for all the fish.
[1] https://lists.freebsd.org/pipermail/freebsd-arch/2020-January/019823.html
PR: 228919
Reviewed by: brooks, imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23124
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.
Updating the vendor area to match this layout is next.
Traditionally, toolchain components such as cc, as, and ld have been
built as static executables. The WITH_SHARED_TOOLCHAIN option from
src.conf(5) is meant to link these as regular executables, e.g. using
shared libraries.
The build of ld.lld did not yet check this option. Fix the Makefile so
it will do so now.
Reported by: Mike Cui <cuicui@gmail.com>
PR: 241257
MFC after: 3 days
