In 486e12ad68 cmake flags were added matching
later compilers use of libunwind for `useLLVM = true`. Unfortunately, `useLLVM`
on Darwin was not something tested before, and so the other compilers led us
astray: one of the new flags tried to make libunwind be used when it wasn't a
dep.
This is now fixed with more conditional code, but I hope things can perhaps be
made simpler with more insight into why libunwind is skipped. Perhaps it is
included in libSystem?
Finally, I moved the definition of `cmakeFlags` to match the order in the other
llvm versions.
CC @sternenseemann and @thefloweringash
This flag was introduced for clang 9, but we use it in the `lldClang`
wrapper for `llvmPackages` 7, 8 and 9. For this purpose the patch was
backported for `llvmPackages_8.clang`, but not for `llvmPackages_7.clang`
which has been done in this commit.
`lldClang` is mostly used when cross compiling and
`stdenv.hostPlatform.useLLVM` is true. Most likely this problem wasn't
noticed since `useLLVM` with `llvmPackages_7` was broken for other
reasons as well and all cross targets (like `wasi32`) which have
`useLLVM` at the moment use `llvmPackages_8`.
With this change tests.cross.llvm.hello.{musl64, …} works again.
This reverts commit 76b54c75b3 and brings
llvmPackages_7.libcxxabi in line with what the other llvmPackages
sets are doing again (with llvmPackages_7 being the sole outlier).
This also fixes an evaluation error of llvmPackages_7.libcxxabi if
stdenv.hostPlatform.useLLVM is true as the nonexistant libunwind
argument would be overridden.
This commit patches one of the llvm-exegesis tests to swap out whatever
CPU model happens to be on the build host for bdver2 (AMD Family
15h/Piledriver), which was picked because it looks like that was the
intent of the test author. This provides a more predictable compilation
behaviour when running on older (or possibly even newer!) machines.
One of the machines that is currently part of the NixOS Hydra build
farm, wendy, is using an old AMD Opteron CPU for which LLVM has no
scheduling machine model. This causes one of the tests for llvm-exegesis
to fail, because it segfaults trying to use the machine model to produce
useful analysis results.
Note that this particular test only runs on x86-64 build hosts anyway;
aarch64 isn't affected.
This deliberately only patches LLVM 12 to limit the rebuilds; other
LLVM versions are going through staging.
Don't rely on gcc detecting from the passed platforms which prefix to
use, but always specify the prefix nixpkgs expects (or doesn't). This
allows us to work around problems where the configure script would add
prefix where nixpkgs doesn't expect one (if `--target` was specified,
but the same as `--host`) or doesn't add one if nixpkgs expects one (if
`--target` and `--host` are the same, but we are actually cross
compiling, but the relevant parts of the platform are not encoded into
the platform config.
See also ca9be0511b.
It is building fine locally, tested by myself and @SuperSandro2000 (who had added the broken tag).
Should this be tested on hydra before removing it? I don't know if that is even possible.
This patches are included from libcxx and libcxxabi when
stdenv.hostPlatform.isMusl. After #117433 the patchs to that patch
wasn't adjusted for the new structure, likely because it doesn't come up
during normal eval. This fixes (among other attribute paths):
* pkgsMusl.llvmPackages_12.libcxxabi
* pkgsMusl.llvmPackages_12.libcxx
* pkgsMusl.llvmPackages_11.libcxxabi
* pkgsMusl.llvmPackages_11.libcxx
* pkgsMusl.llvmPackages_10.libcxxabi
* pkgsMusl.llvmPackages_10.libcxx
* pkgsMusl.llvmPackages_9.libcxxabi
* pkgsMusl.llvmPackages_9.libcxx
* pkgsMusl.llvmPackages_8.libcxxabi
* pkgsMusl.llvmPackages_8.libcxx
* pkgsMusl.llvmPackages_7.libcxxabi
* pkgsMusl.llvmPackages_7.libcxx
* pkgsMusl.llvmPackages_6.libcxxabi
* pkgsMusl.llvmPackages_6.libcxx
* pkgsMusl.llvmPackages_5.libcxxabi
* pkgsMusl.llvmPackages_5.libcxx
Only evaluation was tested, not compilation though.
