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lib.systems.riscv-multiplatform: linux-kernel config improvements
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Not just FreeBSD.
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`rustc.config` is called `rust.rustcTarget` now, and
`{rustc -> rust}.platform`.
This is the new way (tm), and is preferred since
https://github.com/NixOS/nixpkgs/pull/271707 -
though the documentation still is outdated, and some expressions in
nixpkgs were using the old interface.
This updates both.
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SERIAL_OF_PLATFORM has been y in riscv defconfig since 2018
Reference: https://github.com/torvalds/linux/commit/33c57c0d3c67f51f491a9d27108f7e97adc03d96
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Like aarch64, riscv platforms require many drivers to be builtin to boot.
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* Extend libc
Include non-libc core libraries in the libc package. Many of these
mirror libraries present in glibc on linux, such as libgcc, libraries
used for iconv, and libraries used for reading kernel info (libkvm,
libprocstat, libmemstat).
Without this many packages outside the freebsd tree would need to be
modified to include standard dependencies which would already be on
the system for other packages.
* Mark FreeBSD as using LLVM
* Update default LLVM version FreeBSD
* Use patch monolith
The patchesRoot system combined with the fact that each derivation
will Request specific names of patches makes it very annoying to use
other FreeBSD source trees with nixpkgs. This new system allows
providing one Or more entire trees of patches whose contents will be
dynamically Parsed and only the relevant patches will be applied for
any one Derivation.
With this commit, the following knobs are available for specifying the
FreeBSD source:
- overriding `freebsd.versionInfo`, for picking another official
supported FreeBSD release.
- overriding `freebsd.source` for specifying a specific unpatched
FreeBSD source tree.
- overriding `freebsd.patches`, for specifying the patches to apply.
Co-Authored-by: Audrey Dutcher <audrey@rhelmot.io>
Co-Authored-by: John Ericson <John.Ericson@Obsidian.Systems>
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Co-authored-by: Alyssa Ross <hi@alyssa.is>
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Adds a new target for `pkgsCross` that can be used for building
freestanding code for microblaze targets (e.g. Xilinx PMU firmware).
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* doc: migrate trivial files to doc-comment format
* fix: revert some comments
* Apply suggestions from code review
Thanks @danielSidhion
Co-authored-by: Daniel Sidhion <DanielSidhion@users.noreply.github.com>
* Update lib/types.nix
---------
Co-authored-by: Daniel Sidhion <DanielSidhion@users.noreply.github.com>
Co-authored-by: Silvan Mosberger <github@infinisil.com>
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lib: use explicit name imports in `lib/systems`
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lib/systems/parse.nix
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instead of re-importing
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This allows refactoring in the file without accidentally modifying the
public interface of the file.
Also, pull in symbols consistently from `lib` instead of `builtins`.
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alsaSupport/jackSupport: unnecessary multimedia systems
tpmSupport/capstoneSupport: unlikely to come up as an exe emulator
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This is useful to distinguish between SPARC64 and SPARC whatever,
because SPARC64 do support compressed kernels.
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According to the WebAssembly design doc, wasm32 is an ILP32 ABI like
x32, mips64n32, and aarch64_ilp32 (Apple Watch). This commits adds
it to the predicate.
https://github.com/WebAssembly/design/blob/1319968ca53fb5c7e7ea6cc210c7b0ed46566a45/CAndC%2B%2B.md?plain=1#L16
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Most of the time when we do a patchelf conditional on
hostPlatform.isLinux, what we really mean is hostPlatform.isElf.
Now that we are starting to support BSDs, this is becoming more important.
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An important idea around the rust stuff in lib.systems is that it's
elaborated — this means that it should idempotently add to the values
passed in, if any. But we missed that the names used for the
parameter and the elaborated value for "rustcTarget"/"config" didn't
line up. The intention was to use "rustcTarget" everywhere in the new
interface, as a more descriptive name than "config".
This fixes setting the system in NixOS configuration, which results in
an already elaborated system being elaborated again. Before, this
wouldn't produce the correct result:
% nix-instantiate --eval -A stdenv.hostPlatform.rust.rustcTarget --system armv7l-linux
"armv7-unknown-linux-gnueabihf"
% NIX_PATH= nix-instantiate --eval -E '(import nixos/lib/eval-config.nix { system = "armv7l-linux"; modules = []; }).pkgs.stdenv.hostPlatform.rust.rustcTarget'
"arm-unknown-linux-gnueabihf"
Fixes: e3e57b8f1885 ("lib.systems: elaborate Rust metadata")
Fixes: https://github.com/NixOS/nixpkgs/issues/271000
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Usually, attributes passed explicitly to elaborate take precedence
over the elaborated ones, but since we also elaborate the nested
"rust" attrset, we need to push that one level down, so the rest of
"rust" is still filled in if you just pass
{ rust = { config = ... } }.
I've had to drop the assertion that checked that at most one of "rust"
and "rustc" was part of the un-elaborated system, because doing this
broke passing an elaborated system in, which should be idempotent.
For the same reason, I've also had to make it possible for
rust.rustcTargetSpec to be passed in. Otherwise, on the second call,
since platform was filled in by the first, the custom target file
would be constructed. The only other way to avoid this would be to
compare the platform attrs to all built in Rust targets to check it
wasn't one of those, and that isn't feasible.
Fixes: e3e57b8f1885 ("lib.systems: elaborate Rust metadata")
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We need this stuff to be available in lib so make-derivation.nix can
access it to construct the Meson cross file.
This has a couple of other advantages:
- It makes Rust less special. Now figuring out what Rust calls a
platform is the same as figuring out what Linux or QEMU call it.
- We can unify the schema used to define Rust targets, and the schema
used to access those values later. Just like you can set "config"
or "system" in a platform definition, and then access those same
keys on the elaborated platform, you can now set "rustcTarget" in
your crossSystem, and then access "stdenv.hostPlatform.rustcTarget"
in your code.
"rustcTarget", "rustcTargetSpec", "cargoShortTarget", and
"cargoEnvVarTarget" have the "rustc" and "cargo" prefixes because
these are not exposed to code by the compiler, and are not
standardized. The arch/os/etc. variables are all named to match the
forms in the Rust target spec JSON.
The new rust.target-family only takes a list, since we don't need to
worry about backwards compatibility when that name is used.
The old APIs are all still functional with no warning for now, so that
it's possible for external code to use a single API on both 23.05 and
23.11. We can introduce the warnings once 23.05 is EOL, and make them
hard errors when 23.11 is EOL.
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We have several cross-compilation bugs that show up if
hostPlatform!=buildPlatform yet
hostPlatform.config==buildPlatform.config.
These bugs have appeared and disappeared as we've fiddled with the
definition of equality for platform objects. This commit adds a
clear-cut case where they are *not* equal and never will be, so we
can test it.
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gnu-config will ignore the portion of a triple matching the regex
`e?abi.*$` when determining the validity of a triple. In other
words, `i386-linuxabichickenlips` is a valid triple.
This commit updates our parsing routines to match gnu-config.
I was recently surprised to discover that it is in fact possible to
shoehorn ABI flavors into nix doubles in a way which preserves their
property of being a (non-canonical) subset of the valid gnu-config
triples. This commit is required in order to exploit that discovery
to add automatic detection of ILP32 platforms (64-bit void*, 32-bit
int, like the Apple Watch and MIPS n32) to Nix.
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lib.systems: add ubootArch
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The Minimalist Gnu for Windows distribution comes with support for
the traditional msvcrt libc, as well as ucrt64 libc. The latter
being the newer universal compiler runtime. We follow the msys2
environment naming convention[1]:
| name | toolchain | arch | libc | libc++ |
|------------|-----------|---------|--------|-----------|
| mingw32 | gcc | i686 | msvcrt | libstdc++ |
| mingw64 | gcc | x86_64 | msvcrt | libstdc++ |
| ucrt64 | gcc | x86_64 | ucrt | libstdc++ |
| clang32 | llvm | i686 | ucrt | libc++ |
| clang64 | llvm | x86_64 | ucrt | libc++ |
| clangarm64 | llvm | aarch64 | ucrt | libc++ |
For now nixpkgs only supports the first three with this commit.
--
[1]: https://www.msys2.org/docs/environments/
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Option added in 5b0ed68c106c1cbe3b573f3d1ca8c73eb203e346
it causes infinite recursion in cross builds
There's a another inf rec that needs 6946977de0de845e69a805f179b96a87d17640fa which is in staging
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lib/systems/parse.nix: show respect where deserved
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u-boot has its own rosetta stone, almost but not exactly the same as
the Linux kernel's. This commit adds it and the two cases where it
diverges.
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Qemu's name for mips64[el] using the n32 ABI is "mipsn32[el]".
That's the first time I've seen that name for it. Oh well.
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The target aarch64-none-elf is not a valid rustc target, use
aarch64-unknown-none instead.
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lib.systems.bluefield2: remove cpu profile
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Some software, e.g. systemd, failed to build with set cpu
profile.
Signed-off-by: Markus Theil <theil.markus@gmail.com>
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Add support for Nvidia's Bluefield 2 plattform as a compilation
target. There exists a version with and without crypto support,
while the crypto supported version is the most common one.
Support for the non-crypto version can be easily added in the future,
if needed.
For a datasheet of the hardware, see:
https://www.nvidia.com/content/dam/en-zz/Solutions/Data-Center/documents/datasheet-nvidia-bluefield-2-dpu.pdf
Signed-off-by: Markus Theil <theil.markus@gmail.com>
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gccCrossStageStatic: enable dynamic libraries, rename it
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lib.platforms.mips{,64}-embedded: init
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Because downstream code expects to use `==` on platform attrsets, we
are unfortunately not able to throw a useful error message when the
`sharedLibrary` attribute is accessed.
When users do a comparison like:
stdenv.hostPlatform == pkgsStatic.stdenv.hostPlatform
... in a situation where `stdenv.hostPlatform.hasSharedLibraries`,
they expect this to return `false`. Unfortunately Nix does a deep
equality comparison here, and ends up forcing the
`pkgsStatic.stdenv.hostPlatform.extensions.sharedLibrary` attribute,
which throws the error.
Rather than returning `null`, this commit instead simply omits the
`extensions.sharedLibrary` attribute. This provides the user with a
more-useful error message: instead of waiting until the `null` is
used (and hoping that produces an error), the user will get an error
about the `extensions.sharedLibrary` attribute being missing, at the
position where it was referenced.
Big thanks to @trofi for his PR to add
`NIX_VALIDATE_EVAL_NONDETERMINISM` to Nix, which I am now using. It
made tracking this down really easy!
Fixes #244045
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This commit adds `hasSharedLibraries` to `lib.systems`.
We need `plat.hasSharedLibraries` in order to know whether or not to
expect `gcc` (and many other tools) to emit shared libraries (like
`libgcc_s.so`). Many of the GNU build scripts are smart enough that
if you configure them with `--enable-shared` on a platform (such as
`arm-none-eabi`) that doesn't support dynamic linking, they will
simply skip the shared libraries instead of aborting the
`configurePhase`. Unfortunately the missing shared libraries in the
final build product cause very hard-to-troubleshoot problems later
on.
The alternative to introducing `hasSharedLibraries` would be to set
`isStatic` in these situations. However doing so causes
`make-derivation.nix` to insert `-static` between the `pname` and
`hostPlatform` suffix, which is undesirable.
If at some point in the future we eliminate the `-static` suffix,
then `hasSharedLibraries` can be made equal to `!isStatic`.
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The `isGnu` predicate was missing `gnuabin32`. This commit corrects
that by adding it.
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Variation on:
- https://github.com/NixOS/nixpkgs/pull/208398
- https://github.com/NixOS/nixpkgs/pull/224978
Co-authored-by: Sandro Jäckel <sandro.jaeckel@gmail.com>
Co-authored-by: Shawn8901 <shawn8901@googlemail.com>
Co-authored-by: AveryanAlex <alex@averyan.ru>
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toLosslessStringMaybe is not used by anything other than lib/tests,
so it can be private to that file.
I don't think this function was terribly well thought-through. If
people start using it, we will become permanently dependent on the
ability to test platforms for equality. It also makes the
elaboration process more fragile, because it encourages code outside
of nixpkgs to become sensitive to the minute details of how
elaboration happens.
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