LLVM's OpenMP implementation only supports Windows on x86, and it
requires a MASM-compatible assembler to build it. Build UASM
for this purpose, for now. (UASM isn't available packaged in
debian/ubuntu repos.) In the future, llvm-ml should be able
to handle it instead, but it's not currently mature enough.
Not including it in the regular build-all.sh for now, as UASM
isn't generally available.
Also flush after each printout, since not all configurations (in
particular, wine) flush stderr implicitly.
This is often useful when debugging unwinding.
Notable changes since LLVM 10.0.0:
- Enable -mms-bitfields by default (like GCC), don't produce errors
if the -mms-bitfields option is used together with non-trivial C++
classes
- Support for more linker flags in LLD (--disable-auto-import,
--disable-runtime-pseudo-reloc, --file-alignment, --section-alignment),
and fixed the handling of the --no-seh flag
- Clearly error out on unsupported relocation types in aarch64 assembly
- Proper support for __attribute__((weak))
- Minor improvements to details in llvm-rc
- Fixed a regression in LLD about exporting symbols containing periods ('.')
with a def file
If llvm is built with build-llvm.sh --full-llvm, we need to remove
this directory to end up with the same set of installed files as if
without --full-llvm, after stripping the install.
Our pinned version of mingw-w64 is new enough already, and
latest wine has implemented __C_specific_handler for aarch64,
so this makes the test be bypassed with current pinned clang (10.0.0)
and the soon to be released clang 11.0.0, but is executed with
clang 12.0.0 (where current versions has got this implemented properly).
This simplifies build-mingw-w64.sh. When building on native
windows (where we also provide unprefixed tools, we can't have
the yet incomplete compiler toolchain in $PATH when building
the mingw-w64 tools. (Logically, build-mingw-w64-tools belong
with build-llvm and install-wrappers; using the original system
compiler to build tools that are supposed to run on the current
machine, as opposed to the cross target, like when building the
runtimes.)
This is necessary since 8bc62db27244803 (Jun 26, 2020) in llvm-project.
Also setting it for libcxxabi and libunwind, in case it becomes
needed there as well.
Passing -lucrt* to the clang driver inhibits the implicit default
-lmsvcrt, so this ends up only using libucrtapp.a instead of libucrt.a.
This still requires that the default crt was ucrt, as the prebuilt
libc++.a needs to have been built for the right crt.
`pacman -S` by default reinstalls (and redownloads if necessary) packages given as arguments. Adding `--needed` flag makes it skip packages which are already installed and up to date.
These aren't strictly necessary any longer, as the external libs
are used automatically if found (instead of erroring out if not
found, unless explicitly disabled as before).
Still keeping the explicit disables, to avoid potential issues if
e.g. the libs are found but exist in an incompatible version.
- Fixed the dinput/dinput8 libraries for armv7/aarch64
- Provide libcfgmgr32.a for aarch64
- Fix cases of duplicate definitions of snprintf/vsnprintf when using
msvcrt as crt, when building C++ code
- Fix cases where mftransform.h would undefine EXTERN_C, turning other
variables declared as EXTERN_C into actual definitions
Orgad Shaneh