as it breaks uses of llvm-config --system-libs and the follow-on commit
"build: avoid cached literals being linked against"
This reverts commits 340e7c0b77 and
340e7c0b77.
FindLibXml2 will set the LIBXML2_LIBRARIES variable to the libraries that
we must link against. This will be an empty string if libxml2 is not
found. Avoid hardcoding the library name as xml2 in the configuration.
Simplify the usage in the WindowsManifest library.
This is the compantion patch to https://reviews.llvm.org/D64482, needed to ensure
that builds with host compilers that don't yet predefine _FILE_OFFSET_BITS=64 on
Solaris succeed by always making the host and freshly built clang consistent.
Tested on x86_64-pc-solaris2.11.
Differential Revision: https://reviews.llvm.org/D64483
llvm-svn: 367304
Summary:
It is useful to build with _XOPEN_SOURCE defined on AIX, enabling X/Open
and POSIX compatibility mode, to work around stray macros and other
bugs in the headers provided by the system and build compiler.
This patch adds the config to cmake to build with _XOPEN_SOURCE defined
on AIX with a few exceptions. Google Test internals require access to
platform specific thread info constructs on AIX so in that case we build
with _ALL_SOURCE defined instead. Libclang also uses header which needs
_ALL_SOURCE on AIX so we leave that as is as well.
We also add building on AIX with the large file API and doing CMake
header checks with X/OPEN definitions so the results are consistent with
the environment that will be present in the build.
Reviewers: hubert.reinterpretcast, xingxue, andusy
Reviewed By: hubert.reinterpretcast
Subscribers: mgorny, jsji, cfe-commits, llvm-commits
Tags: #llvm, #clang
Differential Revision: https://reviews.llvm.org/D62533
llvm-svn: 362808
which doesn't play well with passing CMAKE_MAKE_PROGRAM from the
commandline without a path.
Fixes a bug introduced in r361280.
Thanks to Mikael Holmén for reporting this!
llvm-svn: 361501
Summary:
clang and newer versions of ninja use high-resolutions timestamps, but
older versions of libtool on Darwin don't, so the archive will often
get an older timestamp than the last object that was added or updated.
To fix this, we add a custom command to touch the archive after it's
been built so that ninja won't rebuild it unnecessarily the next time
it's run.
Reviewed By: beanz
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62172
llvm-svn: 361280
Summary: This requres exec-ing python, which in a trace I ran of the CMake re-configure time took ~2% of the reconfigure time.
Reviewers: phosek, smeenai, compnerd
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61402
llvm-svn: 360196
Summary:
This value is derived from the host triple, which on the machine
I'm currently using is `ppc64le-linux-redhat`. This change makes
LLVM compile.
Reviewers: nemanjai
Differential Revision: https://reviews.llvm.org/D57118
llvm-svn: 359242
As far as I can tell, malloc.h is only being used here to provide
a definition of mallinfo (malloc itself is declared in stdlib.h via
cstdlib). We already have a macro for whether mallinfo is available,
so switch to using that instead.
Differential Revision: https://reviews.llvm.org/D57807
llvm-svn: 353329
llvm::is_trivially_copyable portability is verified at compile time using
std::is_trivially_copyable as the reference implementation.
Unfortunately, the latter is not available on all platforms, so introduce
a proper configure check to detect if it is available on the target platform.
In a similar manner, std::is_copy_assignable is not fully supported for gcc4.9.
Provide a portable (?) implementation instead.
Differential Revision: https://reviews.llvm.org/D57018
llvm-svn: 351820
This extends the CMake cross compilation logic so that AVR can be set as
the default target triple, and thus the generic codegen tests can be
run.
This used to be possible on AVR; the CMake configuration files have
since been changed.
With this patch, 'cmake -DLLVM_DEFAULT_TARGET_TRIPLE=avr-unknown-unknown' can
be passed on the command line, making the `-mcpu` argument redundant to
'llc' and friends.
llvm-svn: 351678
Summary:
getLastAccessedTime() and getLastModificationTime() provided times in nanoseconds but with only 1 second resolution, even when the underlying file system could provide more precise times than that.
These changes add sub-second precision for unix platforms that support improved precision.
Also add some comments to make sure people are aware that the resolution of times can vary across different file systems.
Reviewers: labath, zturner, aaron.ballman, kristina
Reviewed By: aaron.ballman, kristina
Subscribers: lebedev.ri, mgorny, kristina, llvm-commits
Differential Revision: https://reviews.llvm.org/D54826
llvm-svn: 347530
Summary:
NetBSD ships with native curses(3) and -ltinfo is a part of ncurses.
Set -lterminfo before -ltinfo, as it allows to prioritize native curses
libraries. Mixing curses and ncurses does not work well, especially
in software built on top of llvm.
Original patch by Ryo Onodera (NetBSD) in pkgsrc.
Reviewers: labath, dim, mgorny
Reviewed By: dim, mgorny
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D54650
llvm-svn: 347156
On MacOS, if CMAKE_OSX_SYSROOT is used and the user has command line tools
installed, we currently get the include path for libxml2 as
/usr/include/libxml2, instead of ${CMAKE_OSX_SYSROOT}/usr/include/libxml2.
Make it consistent on MacOS by prefixing ${CMAKE_OSX_SYSROOT} when
possible.
rdar://problem/41103601
llvm-svn: 334746
Summary:
Due to some android peculiarities, in some build configurations
(statically linked executables targeting older releases) we could detect
the presence of these functions (because they are present in libc.a,
where check_library_exists searches), but then fail to build because the
headers did not include the definition.
This attempts to remedy that by upgrading the check_library_exists to
check_symbol_exists, which will check that the function is declared too.
I am hoping that a more thorough check will make the messy #ifdef we
have accumulated in the code obsolete, so I optimistically try to remove
them.
Reviewers: zturner, kparzysz, danalbert
Subscribers: srhines, mgorny, krytarowski, llvm-commits
Differential Revision: https://reviews.llvm.org/D45359
llvm-svn: 330251
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops
This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops".
The RFC is available on the LLVM mailing lists as well as the following document
for easier reading:
https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing
Subscribers: mgorny, gchatelet, orwant, llvm-commits
Differential Revision: https://reviews.llvm.org/D44519
llvm-svn: 329156
These used to be set in the old autoconf build, but the cmake build has had a
"TODO: actually check for these" comment since it was checked in, and they
were set to 1 on mingw unconditionally. It seems safe to say that they always
exist under mingw, so just remove them and assume they're set exactly when on
mingw (with msvc, we use `pragma comment` instead of linking these via flags).
llvm-svn: 328992
The autoconf manual: "This macro is obsolescent, as all current systems with
directory libraries have <dirent.h>. New programs need not use this macro."
llvm-svn: 328989
These should exist in all toolchains LLVM supports nowadays.
Enables making DataTypes.h a regular header instead of a .h.cmake file and
allows deleting a bunch of cmake goop (which should also speed up cmake
configure time a bit).
All the code this removes is 9+ years old.
https://reviews.llvm.org/D45155
llvm-svn: 328970
Found by looking through the output of
for f in $(grep -o '\bHAVE_[A-Z0-9_]*\b' llvm/cmake/config-ix.cmake); do
echo $f $(git grep $f '*' | wc -l);
done
in the monorepo.
llvm-svn: 328957
Summary: Build system changes for RISCV. Makes it possible to build just the RISCV target alone.
Reviewers: asb, apazos, mgrang, beanz
Reviewed By: asb
Subscribers: mgorny, kito-cheng, shiva0217, llvm-commits
Differential Revision: https://reviews.llvm.org/D44153
llvm-svn: 327423
Some systems still don't have this module which was introduced in
version 2.0 (CentOS 7, sigh).
Differential Revision: https://reviews.llvm.org/D41611
llvm-svn: 321659
Summary:
Always respect existing CMAKE_REQUIRED_FLAGS when adding
additional ones. This is important when cross compiling where
--sysroot and -target were already added.
In particular, this is needed when cross compiling from Darwin to
Linux, since --sysroot is required to find headers and libraries.
Cmake has a similar bug in check_include_file[_cxx] where
CMAKE_REQUIRED_LIBRARIES isn't passed, which causes
try_compile to fail.
(please see https://gitlab.kitware.com/cmake/cmake/merge_requests/1620)
Reviewers: compnerd, silvas, beanz, brad.king
Reviewed By: compnerd
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D41568
llvm-svn: 321434
This recommits r319533 which was broken llvm-config --system-libs
output. The reason was that I used find_libraries for searching for the
z library. This returns absolute paths, and when these paths made it
into llvm-config, it made it produce nonsensical flags. To fix this, I
hand-roll a search for the library in the same way that we search for
the terminfo library a couple of lines below.
This is a bit less flexible than the find_library option, as it does not
allow the user to specify the path to the library at configure time
(which is important on windows, as zlib is unlikely to be found in any
of the standard places cmake searches), but I was able to guide the
build to find it with appropriate values of LIB and INCLUDE environment
variables.
Reviewers: compnerd, rnk, beanz, rafael
Subscribers: llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D40779
llvm-svn: 319751
This reverts commit r319533 as it broke llvm-config --system-libs output
and everything that depends on it (which is mostly out of tree or
downstream folks, but includes a couple of llvm buildbots as well).
I think I have a fix for this in D40779, but I want someone to look
review it first. In the mean time, I am reverting this change, as it
seems to break a lot of people.
llvm-svn: 319663
Summary:
zlib support was hard-wired to off for (non-cygwin) windows targets.
This disables some features, such as reading debug info from compressed
dwarf sections.
This has been this way since zlib support was added in 2013 (r180083),
but there is no obvious reason for that. Zlib is perfectly capable of
being compiled for windows (it even has a cmake file that works out of
the box).
This enables one to turn on zlib support on windows, if one has zlib
avaliable.
Reviewers: rnk, beanz
Subscribers: mgorny, aprantl, llvm-commits
Differential Revision: https://reviews.llvm.org/D40655
llvm-svn: 319533
Detects whether we have the Python modules (pygments, yaml) required by
opt-viewer and hooks this up to REQUIRES.
This fixes https://bugs.llvm.org/show_bug.cgi?id=34129 (the lack of opt-viewer
testing).
It's also related to https://github.com/apple/swift/pull/12938 and the idea is
to expose LLVM_HAVE_OPT_VIEWER_MODULES to the Swift cmake.
Differential Revision: https://reviews.llvm.org/D40202
Fixes since the first commit:
1. Disable syntax highlighting as different versions of pygments generate
different HTML
2. Use llvm-cxxfilt from the build
llvm-svn: 319324
In addition to the current ON and OFF options, this adds the FORCE_ON
option, which causes a configuration error if libxml2 cannot be used.
Differential revision: https://reviews.llvm.org/D40050
llvm-svn: 318209
This broke the use of libxml2 on machines where iconv() is provided by libc.
I'll follow up on the mailing list to discuss how to fix this properly.
> This is introduced in rL308711.
> Check for c library is incorrect here just because libc will be found always
> and it does not mean that iconv is presented.
>
> Thank to Andrew Krasny for narrowing down the root cause.
>
> Reviewers: ecbeckmann
> Reviewed By: ecbeckmann
> Subscribers: mgorny, llvm-commits
> Differential Revision: https://reviews.llvm.org/D38875
llvm-svn: 317517
Saleem Abdulrasool