Commit Graph

11 Commits

Author SHA1 Message Date
Petr Hosek b04fe71592 [libcxxabi][CMake] Drop unused HandleOutOfTreeLLVM include
This include doesn't seem to be needed for the standalone build (it's
not being used by libc++ build either), but introduces unnecessary
dependency because HandleOutOfTreeLLVM performs checks that require
a working C++ library. We shouldn't require a working C++ library to
build libc++abi or libc++ (it's what we're building after all).

Differential Revision: https://reviews.llvm.org/D58333

llvm-svn: 354284
2019-02-18 20:58:06 +00:00
Michal Gorny d4b194cf95 [cmake] Fix get_llvm_lit_path() to respect LLVM_EXTERNAL_LIT always
Refactor the get_llvm_lit_path() logic to respect LLVM_EXTERNAL_LIT,
and require the fallback to be defined explicitly
as LLVM_DEFAULT_EXTERNAL_LIT. This fixes building libcxx standalone
after r346888.

The old logic was using LLVM_EXTERNAL_LIT both as user-defined cache
variable and an optional pre-definition of default value from caller
(e.g. libcxx). It included a hack to make this work by assigning
the value back and forth but it was fragile and stopped working
in libcxx.

The new logic is simpler and more transparent. Default value is
provided in a separate variable, and used only when user-specified
variable is empty (i.e. not overriden).

Differential Revision: https://reviews.llvm.org/D57282

llvm-svn: 352374
2019-01-28 15:16:03 +00:00
Petr Hosek 8807db3209 [libcxxabi] Support building hermetic static library
This is useful when the static libc++abi library is being linked into
shared libraries that may be used in with other shared libraries that
use different C++ library. We want to avoid avoid exporting libc++abi
or libc++ symbols in those cases. This achieved by a new CMake option
which can be enabled by libc++abi vendors as needed.

Differential Revision: https://reviews.llvm.org/D56026

llvm-svn: 352017
2019-01-24 03:18:29 +00:00
Martin Storsjo dfcb36bf9f Enable LLVM_ENABLE_WARNINGS when building standalone out of tree
When built within the llvm runtimes directory, the runtimes
CMakeLists.txt adds the same.

Differential Revision: https://reviews.llvm.org/D56979

llvm-svn: 351873
2019-01-22 20:43:37 +00:00
Petr Hosek 2d2e23e89b [CMake] Passthrough CFLAGS when checking the compiler-rt path
This is needed when cross-compiling for a different target since
CFLAGS may contain additional flags like -resource-dir which
change the location in which compiler-rt builtins are found.

Differential Revision: https://reviews.llvm.org/D54371

llvm-svn: 346820
2018-11-14 00:09:26 +00:00
Martin Storsjo dd75eb531d [CMake] Convert paths to the right form in standalone builds on Windows
The paths output from llvm-config --cmakedir and from clang
--print-libgcc-file-name can contain backslashes, while CMake
can't handle the paths in this form.

This matches what compiler-rt already does (since SVN r203789
and r293195).

Differential Revision: https://reviews.llvm.org/D48355

llvm-svn: 335171
2018-06-20 20:59:18 +00:00
Eric Fiselier 6ae8abf241 Fix standalone test-suite run.
This patch updates libc++abi's HandleOutOfTreeLLVM.cmake to match
libc++'s -- and more importantly, to fix a bug where llvm-lit wasn't
found/created when libc++abi was built out-of-tree. This prevented
the test suite from running.

llvm-svn: 322768
2018-01-17 22:07:09 +00:00
Martell Malone 2fdf185bea [libcxxabi] HandleLLVMOptions in out of tree build
Differential revision: https://reviews.llvm.org/D33753

llvm-svn: 304664
2017-06-03 17:23:19 +00:00
Martell Malone 062f8f00ae [libcxxabi] Rework CMakeLists.txt into modules
Refactor cmake to remove dependence on LLVM's cmake modules.
This improves handling of cmake checks when cross compiling and brings
libcxxabi in line with libcxx and other project modules.

Differential revision: https://reviews.llvm.org/D33635

llvm-svn: 304374
2017-06-01 00:09:20 +00:00
Petr Hosek d3a3fb8391 [CMake][libcxxabi] Fix the -target and -gcc-toolchain flag handling
CMake has the problem with the single dash variant because of the
space, so use the double dash with equal sign version. These flag
need to be included in compile flags to propagate correctly. We also
don't have to pass the target triple when checking for compiler-rt
since that flag is already included in compile flags now.

Differential Revision: https://reviews.llvm.org/D32069

llvm-svn: 300418
2017-04-16 06:08:34 +00:00
Petr Hosek 5f3d5be3dd [CMake][libcxxabi] Use -nodefaultlibs for CMake checks
Since libc++abi is built with -nodefaultlibs, we should be using this
option even for CMake checks to avoid any inconsistency and also to
avoid dependency on a working C++ standard library just for the setting
up the build itself. The implementation is largely similar to the one
used by libc++.

Differential Revision: https://reviews.llvm.org/D31639

llvm-svn: 299797
2017-04-07 20:10:41 +00:00