I've fixed most of the simple bugs and currently "check-llvm" test suite
has 26 failures, and "check-clang" suite has 5 failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216701 91177308-0d34-0410-b5e6-96231b3b80d8
This test was testing nothing, as only -Werror was ever
being added to the compiler flags.
You can see the final nitty-gritty compiler invocation in
CMakeFiles/CMakeOutput.log (for successful tests) and
CMakeFiles/CMakeError.log (for failed tests).
Before:
Building C object CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o
/usr/bin/clang -fPIC -Wall -W -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -DC_WCOMMENT_ALLOWS_LINE_WRAP -Werror -o CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o -c /home/nobled/code/llvm-b9/CMakeFiles/CMakeTmp/src.c
After:
Building C object CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o
/usr/bin/clang -fPIC -Wall -W -Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -DC_WCOMMENT_ALLOWS_LINE_WRAP -Werror -Wcomment -o CMakeFiles/cmTryCompileExec3385359576.dir/src.c.o -c /home/nobled/code/llvm-b9/CMakeFiles/CMakeTmp/src.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216328 91177308-0d34-0410-b5e6-96231b3b80d8
clang has only been smart enough not to trigger -Wnon-virtual-dtor
warnings on final classes since r208449 (in clang 3.5). Building
with older versions is extremely noisy, so disable the warning
on those compilers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216327 91177308-0d34-0410-b5e6-96231b3b80d8
to globally be controlled. Individual targets (e.g. ExceptionDemo) can
still override this by using LLVM_REQUIRE_RTTI and LLVM_REQUIRE_EH if
they need to be compiled with RTTI or exception handling respectively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213663 91177308-0d34-0410-b5e6-96231b3b80d8
This -f group flag appears to influence linker flags, breaking the usual rules
and causing CMake's link invocation to fail during feature detection due to
missing link dependencies (msan_*).
Let's forcibly add it for now to get things the way they were before feature
detection started working.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212590 91177308-0d34-0410-b5e6-96231b3b80d8
When LLVM_ENABLE_TIMESTAMPS has been disabled we can prevent the preprocessor
from embedding dates, times and file timestamps.
There are a few motivations for this:
1) Validate the recent CMake feature detection bugfix from LLVM r212586 with
a flag that's not actually available everywhere.
2) Dogfood clang's new -Wdate-time warning from r210511 when bootstrapping.
3) Encourage reproducible builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212587 91177308-0d34-0410-b5e6-96231b3b80d8
add_flag_if_supported() and add_flag_or_print_warning() were effectively
no-ops, just returning the value of the first result (usually
'-fno-omit-frame-pointer') for all subsequent checks for different flags.
Due to the way CMake caches feature detection results, we need to provide
symbolic variable names which will persist the cached results. This commit
fixes feature detection using these two macros.
The feature checks now run and get stored correctly, and the correct output can
be observed in configure logs:
-- Performing Test C_SUPPORTS_FPIC
-- Performing Test C_SUPPORTS_FPIC - Success
-- Performing Test CXX_SUPPORTS_FPIC
-- Performing Test CXX_SUPPORTS_FPIC - Success
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212586 91177308-0d34-0410-b5e6-96231b3b80d8
FIXME: Make this configurable.
FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for plugins. We may rename it.
I introduced config.enable_shared in r120273.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212315 91177308-0d34-0410-b5e6-96231b3b80d8
By default, CMake will set NDEBUG in Rel* builds and leave it off in
debug builds, so we shouldn't need to do anything ourselves.
Before this change, it was possible to a Debug build without assertions
(aka Debug-Asserts in the autoconf system) by configuring with
-DLLVM_ENABLE_ASSERTIONS=OFF, but this configuration isn't very useful.
You can still get the same effect by explicitly adding -DNDEBUG to
CFLAGS.
Differential Revision: http://reviews.llvm.org/D4257
Patch by Janusz Sobczak!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211919 91177308-0d34-0410-b5e6-96231b3b80d8
add_definitions shouldn't really be used for compiler flags, and the variable
LLVM_DEFINITIONS is not appropriately used at the moment, e.g. it's not exported
to LLVMConfig.cmake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203792 91177308-0d34-0410-b5e6-96231b3b80d8
I personally build with these settings enabled all the time, and it
is clearer to see the actual warning flags (e.g., -Wuninitialized)
get passed by Xcode rather than seeing -Wno-uninitialized followed
by -Wall (the latter canceling out the former) and figuring out
what is going on.
Xcode will ignore build settings it doesn't understand, so this will
work on possibly older versions of Xcode that don't support all
of these settings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203760 91177308-0d34-0410-b5e6-96231b3b80d8
Without this common features like off_t and strdup are missing.
This should bring back those bots.
Configure bits by Meador Inge.
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LLVM_ENABLE_CXX1Y (default *off*). =D C++98 is dead. Long live C++11.
I don't exactly recommend using C++1y just yet though...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202567 91177308-0d34-0410-b5e6-96231b3b80d8
FIXME: llvm/test may be aware of LLVM_PLUGIN_EXT, like as clang/test does.
FIXME: CMAKE_*_SUFFIX may be set in HandleLLVMOptions if those variables could be writable, rather than to set one as target properties.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201316 91177308-0d34-0410-b5e6-96231b3b80d8
r200744 moved this into cmake/config-ix.cmake, so that it would happen very
early in the build process. However, standalone builds of Clang and other
external projects never include this file (which is correct).
Now, -stdlib=libc++ and the LLVM_COMPILER_IS_GCC_COMPATIBLE option are
both set in a new include file, HandleLLVMStdlib, which is included by
both config-ix.cmake and HandleLLVMOptions.cmake. This preserves existing
behavior for projects relying on HandleLLVMOptions and still does the
right thing for builds of LLVM itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200811 91177308-0d34-0410-b5e6-96231b3b80d8
If LLVM_ENABLE_LIBCXX is specified, we should append -stdlib=libc++ to build
flags as early as possible, in particular, before we check for header presence
(as -stdlib=libc++ modifies header lookup rules). Otherwise we can find a header
at configure time (w/o -stdlib=libc++) but fail to find it at build time
(with -stdlib=libc++). See PR18569 for more details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200744 91177308-0d34-0410-b5e6-96231b3b80d8
This will disable -ffunction-sections in older versions of Clang where it
breaks build of sanitizer runtime library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200695 91177308-0d34-0410-b5e6-96231b3b80d8
LLVM_REQUIRES_EH implies LLVM_REQUIRES_RTTI. It is as same behavior as Makefile.rule's.
llvm/examples/ExceptionDemo is affected. (It was built with -fno-rtti.)
For MSVC, Remove flags like "/EHsc /GR" in HandleLLVMOptions, or CL.EXE complains with flags like "/GR /GR-".
llvm_update_compile_flags() updates source file property if the target contains *.c.
COMPILE_FLAGS in target properties affects both C++ and C!
LLVM_NO_RTTI is deprecated. It was introduced by me and was my mistake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200301 91177308-0d34-0410-b5e6-96231b3b80d8
With this tweaks, also unittests are compiled with -ffunction-sections.
It's hard to control contextual CMAKE_CXX_FLAGS. We should get rid of twiddling it as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200299 91177308-0d34-0410-b5e6-96231b3b80d8
accidentally pick that up while using Clang and run into subtle bugs
down the road related to C++11 features not fully implemented in that
version of the standard library.
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option with the others in the top level CMakeLists, and put the check in
HandleLLVMOptions. This will also let it be used from the standalone
Clang builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199149 91177308-0d34-0410-b5e6-96231b3b80d8
This is needed to support the addition of tests for clang loadable plugins.
In clang, plugins are built as modules (bundles on OS X) rather than dynamic
libraries (dylib) so the build system needs to inform lit of the actual
file extension in use, typically '.so' on Unix and '.dll' on Windows.
(LLVM itself should probably switch to this scheme to fix PR14903 once and for
all.)
No change in build output or functionality intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198746 91177308-0d34-0410-b5e6-96231b3b80d8
The cmake build didn't support EXPORTED_SYMBOL_FILE. Instead, it had a
Windows-only implementation in tools/lto/CMakeLists.txt, a linux-only
implementation in tools/gold/CMakeLists.txt, and a darwin-only implementation
in tools/clang/tools/libclang/CMakeLists.txt.
This attempts to consolidate these one-offs into a single place. Clients can now
just set LLVM_EXPORTED_SYMBOL_FILE and things (hopefully) Just Work, like in
the make build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198136 91177308-0d34-0410-b5e6-96231b3b80d8
In some case, it may be required to build LLVM in C++11 mode, as some the subprojects (like lldb) requires it.
This mimics the autoconf behaviour.
However, given the discussions on the switch to C++11 of the codebase, this behaviour should evolve to default to C++11 with some checks of the compiler capabilities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195727 91177308-0d34-0410-b5e6-96231b3b80d8
for release builds.
This is a follow-up to r194589. Aaron pointed out that building
libraries with /MT and using them in an application that uses a
different run-time library can be a bad idea.
Move the option to build with /MT behind a CMake option so it can be
turned on selectively, such as when building the toolchain installer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194596 91177308-0d34-0410-b5e6-96231b3b80d8
After r192904, Reid pointed out he thought we already set the stack
size for MSVC. Turns out we did, but it didn't seem to work.
This commit sets the stack size in a single place, using
CMAKE_EXE_LINKER_FLAGS because that seems to be the way that works
best.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192912 91177308-0d34-0410-b5e6-96231b3b80d8
Compiling under Visual C++ 2012 with the default stack size of 1MB, the stack
overflows at a depth of 216 template instantiations, well before the 256
default limit. This patch modifies the default MSVC stack size to 2MB.
Patch by Yaron Keren!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192904 91177308-0d34-0410-b5e6-96231b3b80d8
