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The eminent Donald E. Knuth should be recognized as having equal
standing with such entities as IBM, Apple, and the Personal
Computer. We should acknowledge this by including him as a "vendor".
Also, `gnu-config` recognizes `mmix-knuth-*` triples (and in fact
requires `vendor="knuth"` when `cpu="mmix"`) -- so we sort of have
to. But we should do it anyways.
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Commit eef4bbd82f4c2 changed the conditional in selectEmulator from
`isCompatible` (which examines only the CPU, rather than the entire
platform) to `canExecute`. This made the first conjunct redundant.
Let's drop the redundant part.
https://github.com/NixOS/nixpkgs/pull/238331#discussion_r1233277119
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Co-authored-by: Artturi <Artturin@artturin.com>
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Signed-off-by: Haonan Chen <chn@chn.moe>
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We already have examples for these, but since we didn't actually
recognise the doubles, it wasn't possible to build any packages for
them without setting allowUnsupportedSystem.
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These arc the same as the normal triples apart for a difference in
-march, so there's no need for them to be separate triples.
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I imagine this was supposed to be rustc = args.rustc, like the other
two lines. This meant that we accepted both rust and rustc
attributes, with the same effect. I doubt anybody was using the
undocumented, probably-accidental "rust" spelling, but we should
remove it before somebody starts.
In fact, we don't need to set rustc here at all, because no value
platforms.select could return will ever include a rustc key (unlike
the other two), so then rustc will be filled in later, when args is
merged into final.
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lib/systems: add mips64[el] entries to qemuArch
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lib.platforms.loongarch64: init
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It makes sense to allow platform definitions to opt out of having libc
at all. One use case would be targetting some obscure new Linux
target that doesn't have a libc implementation yet, and another is
UEFI, which is basically libc-less Windows.
Not having libc is not commonly specified in (GNU) triples (even
Linux's build system will just target either -gnu or -musl depending
on the platform), so instead, we use a separate attribute for it.
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This commit adds `mips64el` to the `qemuArch` table.
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lib/systems/inspect.nix: explanatory comment
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45M -> 31M
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We don't have an emulator that can do this.
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- Christmas is over!
- Upstream has changed the name of the target triplet used for the JS
backend from js-unknown-ghcjs to javascript-unknown-ghcjs, since Cabal
calls the architecture "javascript":
https://gitlab.haskell.org/ghc/ghc/-/commit/6636b670233522f01d002c9b97827d00289dbf5c
Since the triplet is made up anyways, i.e. autoconf does not support
it and Rust uses different triplets for its emscripten backends, we'll
just change it as well.
- Upstream fixed the problem with ar(1) being invoked incorrectly by stage0:
https://gitlab.haskell.org/ghc/ghc/-/commit/e987e345c807035e4637ca3eae227ae501e16c42
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lib/systems/parse: stop considering armv8a able to execute armv7l
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lib/systems/architectures: expand inferiors
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meta: replace predicates with pattern over elaborated platform
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I'm not aware of any ARMv5 EFI implementation. gnu-efi doesn't
support it, so the build of systemd for armv5tel-linux is broken if
it's isEfi.
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There is no "aarch64" CPU family — it counts as "arm", as can be seen
from the definition of isAarch64 above.
Checked that stdenv.hostPlatform.isEfi is still true on aarch64-linux.
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Co-authored-by: Naïm Favier <n@monade.li>
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Co-authored-by: Naïm Favier <n@monade.li>
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In the past, most (if not all) armv8 CPUs could also execute armv7. However,
with the advent of Apple Silicon, aarch64 CPUs without any aarch32 capabilities
are now wide-spread among users.
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lib/systems/inspect.nix: Add riscv to isEfi
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I've run into a few packages that need an extra flag on platforms
where `int` has more bits than `void*` does. I know of three such
platforms:
* [aarch64ilp32], used on both Linux and also on the [Apple Watch]
* [x32], the x86 ILP32 ABI
* [mips64n32], used on [Longsoon] and Cavium Octeon routers.
This PR introduces a predicate so the package flags can be added in
a generic way.
[Apple Watch]: https://gist.github.com/woachk/943828f37c14563a607a26116435bf27#watch
[mips64n32]: https://en.wikipedia.org/wiki/MIPS_architecture#Calling_conventions
[Longsoon]: https://en.wikipedia.org/wiki/Loongson
[x32]: https://en.wikipedia.org/wiki/X32_ABI
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Cross-compilation of anything downstream of gtk3 requires qemu (due to
gobject-introspection) with --target-list=*-linux-user. Without this commit,
those qemu builds will fail on a powerpc64le host due to qemu being configured
with --cpu=powerpc64le instead of --cpu=ppc64le. Unfortunately the build
failure message from qemu in this situation is extremely cryptic.
The root cause turns out not to be the qemu expression, but rather the fact that
on powerpc64le hostPlatform.uname.processor returns the gnu-name (powerpc64le)
for the cpu instead of the linux-name (ppc64le) for the cpu.
uname.processor on mips64el also needs adjustment -- the Linux-name is "mips64"
for both big and little endian (unlike powerpc64, where the Linux-name includes
a "le" suffix):
```
nix@oak:/tmp$ uname -m; lscpu | head -n2
mips64
Architecture: mips64
Byte Order: Little Endian
```
uname.processor on powerpc32 has also been adjusted.
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lib/systems/parse.nix: mkSkeletonFromList: improve readability
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lib/systems/platforms.nix: fix broken mips32 detection
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The main purpose of this PR is to make the basis for
`mkSkeletonFromList`'s decision between `cpu-kernel-libcabi` vs
`cpu-vendor-os` clear, without changing its behavior. The existing
code obscures this decision behind a sequence of prioritized matches
(i.e. `if-then`) which jump around between different coordinates.
Two side benefits of this PR:
1. It makes the root cause of #165836 obvious: we are missing a case
for `cpu-vendor-libcabi`. This is why nixpkgs stumbles over
`*-none-*`.
2. It illuminates some very weird corner cases in the existing
logic, like `*-${vendor}-ghcjs` overriding the `vendor` field,
and `mingw32` being transformed into `windows` in some cases.
Co-authored-by: John Ericson <git@JohnEricson.me>
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FreeBSD packages: Init at 13.1
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A tricky thing about FreeBSD is that there is no stable ABI across
versions. That means that putting in the version as part of the config
string is paramount.
We have a parsed represenation that separates name versus version to
accomplish this. We include FreeBSD versions 12 and 13 to demonstrate
how it works.
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The libc will be inferred.
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