Commit Graph

368 Commits

Author SHA1 Message Date
figsoda
695d4bc76b lib: fix typos 2022-12-17 18:59:29 -05:00
John Ericson
2cb8f1a0ac
Merge pull request #180964 from amjoseph-nixpkgs/pr/mkSkeletonFromList/simplify
lib/systems/parse.nix: mkSkeletonFromList: improve readability
2022-11-22 15:02:22 -05:00
Artturi
20fc948445
Merge pull request #170737 from amjoseph-nixpkgs/fix-mips32-detection
lib/systems/platforms.nix: fix broken mips32 detection
2022-11-21 19:40:18 +02:00
Adam Joseph
36a566b78f lib/systems/parse.nix: mkSkeletonFromList: improve readability
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>
2022-11-13 23:08:57 -08:00
John Ericson
cd27a5b436
Merge pull request #82131 from Ericson2314/bsd-cross
FreeBSD packages: Init at 13.1
2022-11-13 21:35:17 -05:00
Jörg Thalheim
87f4f101d7 cross/mingw: fix emulator for mingw32 2022-11-06 20:29:37 +01:00
John Ericson
66aa02f190 lib/systems: Support FreeBSD
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.
2022-11-04 16:49:28 -04:00
John Ericson
f172d86a4e lib/systems: Simplify NetBSD examples
The libc will be inferred.
2022-11-04 16:49:28 -04:00
Ivan Nikolaenko
f251840237 lib/systems/default.nix: add efiArch suffixes
Move already implemented functionality to the upper level so
it could be used in a more generic way.

Signed-off-by: Ivan Nikolaenko <ivan.nikolaenko@unikie.com>
2022-09-29 08:02:35 +00:00
Artturi
d73864ae2f
Merge pull request #189314 from Artturin/addemulatoravailable 2022-09-13 21:13:07 +03:00
Artturin
20f90d3921 lib/systems: add emulatorAvailable
```
nix-repl> pkgsCross.arm-embedded.stdenv.hostPlatform.emulatorAvailable pkgsCross.arm-embedded.buildPackages
false

nix-repl> pkgsCross.aarch64-multiplatform.stdenv.hostPlatform.emulatorAvailable pkgsCross.aarch64-multiplatform.buildPackages
true
```

will be useful for stuff like handling https://github.com/NixOS/nixpkgs/issues/187109
2022-09-11 19:34:15 +03:00
Adam Joseph
ba3c562fdc
lib/systems: uname.processor is "uname -m", not "uname -p" (#189958)
The comment in lib/systems/default.nix for uname.processor indicates that it
should match `uname -p`.  I tried that command and found that it reports
`unknown` on all of these machines:

- `x86_64-linux`
- `aarch64-linux`
- `mips64el-linux`
- `powerpc64le-linux`

The command `uname -m` reports the expected value on all of the above.

I think the comment is wrong.  So I fixed it.
2022-09-06 10:17:09 -05:00
Minijackson
b2190a3cce lib/systems/doubles: add ELFvx GNU ABIs 2022-08-28 21:46:44 +02:00
Minijackson
345595a8b8 lib/systems: add convenience isAbiElfv2 function 2022-08-28 21:46:44 +02:00
Minijackson
cdb0f02a36 lib/systems/examples: use provided ABIs in PPC64 triple 2022-08-28 21:46:44 +02:00
Minijackson
3fa4274ff6 lib/systems/parse: use ELFv2 by default for PPC64 BE 2022-08-28 21:46:44 +02:00
Minijackson
da2d9a2aca lib/systems: add elfv1 / elfv2 ABIs 2022-08-28 21:46:44 +02:00
Minijackson
4db467f7e9
lib/systems: add MicroBlaze architectures 2022-08-25 16:00:42 +02:00
Daniel Olsen
875d77ca03 lib/systems: Add staticLibrary and library
staticLibrary includes common extensions for static libraries
library is a new common attribute that includes both shared and static extensions
2022-08-16 08:36:57 +00:00
Sandro
7c073f917a
lib/system: resolve TODO 2022-08-02 14:13:18 +02:00
Sandro
463327086d lib/systems/inspect.nix: add isAarch 2022-07-29 19:16:01 +00:00
Vladimír Čunát
87980a5a14
Merge #170736: lib/systems/platforms.nix: fix mips32 ABI 2022-07-27 19:53:38 +02:00
Rick van Schijndel
9532db9eb7
Merge pull request #160554 from Cloudef/android-prebuilt
Fix android prebuilt toolchains
2022-07-18 10:01:00 +02:00
Alyssa Ross
e8d7d52fae lib.systems.examples: canonicalize MIPS triples
In Nixpkgs, we assume that the "config" field is a canonicalized GNU
triple.  I noticed that non-canonical values were being used here,
because the pkgsCross.mips64el-linux-gnu triples did not contain the
vendor field, but the pkgsCross.mips64el-linux-gnu.pkgsStatic did.

Here, I've run all the MIPS triples in lib.systems.examples through
config.sub to canonicalize them.  I think this will avoid nasty
surprises in future.

Tested by building Nix and the bootstrap files for
pkgsCross.mips64el-linux-gnu.
2022-07-03 23:01:21 +00:00
Jari Vetoniemi
539222e8d4 canExecute: check for android 2022-06-29 18:27:16 +09:00
Jari Vetoniemi
2a914f022c update android targets to recommended ones 2022-06-29 18:27:16 +09:00
Alyssa Ross
74562a214e
lib.systems.amd64-netbsd: remove
This has been deprecated for a long time, and it's doubtful it had any
users to start with.  And having an undisablable warning when
enumarating platforms is not good.
2022-06-08 17:14:05 +00:00
sternenseemann
d01774baa3
Merge pull request #174917 from alyssais/scaleway-c1
lib.systems: drop scaleway-c1
2022-05-27 14:52:42 +02:00
Alyssa Ross
089ff89f49
lib.systems: drop scaleway-c1
These servers apparently no longer exist, since September 2, 2021[1].
If somebody needs this for non-Scaleway machines, they should suggest
its reintroduction with a different name.

[1]: https://news.ycombinator.com/item?id=27192757
2022-05-27 12:02:39 +00:00
Adam Joseph
c0085404bd lib/systems/inspect.nix: remove isPowerPC
Very confusingly, the `isPowerPC` predicate in
`lib/systems/inspect.nix` does *not* match `powerpc64le`!

This is because `isPowerPC` is defined as

  isPowerPC      = { cpu = cpuTypes.powerpc; };

Where `cpuTypes.powerpc` is:

  { bits = 32; significantByte = bigEndian; family = "power"; };

This means that the `isPowerPC` predicate actually only matches the
subset of machines marketed under this name which happen to be 32-bit
and running in big-endian mode which is equivalent to:

  with stdenv.hostPlatform; isPower && isBigEndian && is32bit

This seems like a sharp edge that people could easily cut themselves
on.  In fact, that has already happened: in
`linux/kernel/common-config.nix` there is a test which will always
fail:

  (stdenv.hostPlatform.isPowerPC && stdenv.hostPlatform.is64bit)

A more subtle case of the strict isPowerPC being used instead of the
moreg general isPower accidentally are the GHC expressions:

  Update pkgs/development/compilers/ghc/8.10.7.nix
  Update pkgs/development/compilers/ghc/8.8.4.nix
  Update pkgs/development/compilers/ghc/9.2.2.nix
  Update pkgs/development/compilers/ghc/9.0.2.nix
  Update pkgs/development/compilers/ghc/head.nix

Since the remaining legitimate use sites of isPowerPC are so few, remove
the isPowerPC predicate completely. The alternative expression above is
noted in the release notes as an alternative.

Co-authored-by: sternenseemann <sternenseemann@systemli.org>
2022-05-25 09:45:42 +02:00
Nick Cao
eef4bbd82f
stdenv: fix evaluation of platform emulator 2022-05-24 12:01:56 +08:00
sternenseemann
82c434b3de lib.systems: inform isCompatible users about removal 2022-05-23 21:26:03 +02:00
sternenseemann
acb063701a lib.systems.elaborate: expose canExecute predicate over isCompatible
canExecute is like isCompatible, but also checks that the Kernels are
_equal_, i.e. that both platforms use the same syscall interface. This
is crucial in order to actually be able to execute binaries for the
other platform.

isCompatible is dropped, since it has changed semantically and there's
no use case left in nixpkgs.
2022-05-23 21:25:04 +02:00
sternenseemann
fe836f3564 lib/systems/parse: don't consider mode switching CPUs compatible
Since we (exclusively) use isCompatible to gauge whether platform a can
execute binaries built for platform b, mode switching CPUs are not to be
considered compatible for our purposes: Switching the mode of a CPU
usually requires a reset. At the very least we can't execute a mix of
executables for the two modes which would usually be the case in nixpkgs
where we may want to execute buildInputs for the hostPlatform in
addition to nativeBuildInputs for the buildPlatform.
2022-05-23 21:25:04 +02:00
sternenseemann
168b926435 lib.systems: remove supported, replace with flakeExposed
Since the list only gates the platforms the nixpkgs flake exposes
packages to build on, the `hydra` label made little sense. It was also
only used for this purpose, so the `tier*` attributes were largely
unnecessary.

To reflect the intention more accurately, we expose
`lib.systems.flakeExposed` and use it to gate flake.nix's system list.
2022-05-23 15:27:30 +02:00
yvt
bf139d83ec
systems: support cross-compiling for Renesas RX microcontrollers (#173858) 2022-05-22 20:52:36 -04:00
Rick van Schijndel
b9e8ed239f
Merge pull request #161156 from a-m-joseph/abort-on-failed-platform-detection-instead-of-silently-assuming-pc
platforms.nix: use {} on failed detection instead of silently assuming pc
2022-05-04 05:37:16 +02:00
Adam Joseph
006c38fa53 platforms.nix: use {} on failed detection instead of silently assuming pc
This patch causes the autodetection code in lib/systems/platforms.nix
to return {} if it cannot detect the platform and one of the
platform.nix-detection-provided attributes (linux-kernel, gcc, and
rustc) are accessed, rather than silently assuming the "pc" platform
as was previously done.

It is definitely safe to assume that code using these attributes is
prepared to deal with `gcc` and `rustc` not being defined, because
many of the working entries in this file don't define it.

Regarding `linux-kernel` the situation is less certain, but some code
(`lib/systems/default.nix` for example) is already designed to deal
with that attribute being missing.  At worst it would result in an
"attribute not found" error.

While adding mips64el bootstrap support to nixpkgs, the silent
assumption that mips64el routers are actually Intel PCs caused
significant frustration.  This commit removes that assumption in order
to save people who port nixpkgs to new platforms in the future from
this frustration.
2022-05-03 13:31:41 -07:00
Adam Joseph
4d46ee8691 platforms.nix: use inherit syntax 2022-04-28 03:52:15 -07:00
Alyssa Ross
2a6288d9b9 lib.systems: add riscv{32,64} sets and filters
For other platforms like Intel and ARM, we can do
e.g. lib.platforms.aarch64 to get only the 64-bit ARM platorms, but
until now there were no equivalents for RISC-V.
2022-04-28 08:17:02 +00:00
Adam Joseph
eabc6d2902 lib/systems/platforms.nix: fix broken mips32 detection
Prior to this commit, nixpkgs would assume that every little-endian
mips32 system was a "fuloong2f_n32".

Not only are there plenty of mips32 chips other than the fuloong, but
the fuloong is actually a mips64 chip!  Note that the "n32" ABI is
(confusingly) an ABI for 64-bit mips chips (like the "x32" ABI for
amd64 chips -- both are ABIs which use 32-bit pointers on an
otherwise-64-bit system).

This error causes far-ranging problems.  One of them was particularly
difficult to track down: it caused GCC to select 128-bit `long double`
types, which is invalid for the mips32 ABI.  This isn't noticed until
you try to build musl-libc, which is careful to check for these things.

Prior to this commit,

  nix-build . -A pkgsCross.mipsel-linux-gnu.pkgsStatic.hello

would fail.  With this commit and #170736, it succeeds.
2022-04-27 23:49:09 -07:00
Adam Joseph
3e60871330 lib/systems/platforms.nix: use "32" instead of "o32" for mips32 ABI
There is only one ABI for 32-bit MIPS chips.  Before mips64, it didn't
really have a name.

The 64-bit MIPS ABI comes in two flavors, "n64" and "n32".  It is
commonplace to refer to the old 32-bit ABI as "o32" (MIPS and SGI
documents do this).

However, when configuring gcc, one must use --with-abi=32, not
--with-abi=o32.

Let's keep GCC happy with this commit.
2022-04-27 23:46:02 -07:00
Sandro
294ed1bed7
Merge pull request #168111 from a-m-joseph/lib-systems-inspect-powerpc
lib/systems/inspect.nix: add isPower64
2022-04-25 02:22:48 +02:00
Artturin
4aab12d5a1 lib/systems/platforms: correctly import examples.nix
before: :p lib.systems failed with
error: getting status of '...examples': no such file or directory
2022-04-15 20:25:58 +03:00
Adam Joseph
81afd541f9 lib/systems/inspect.nix: add isPower64
This commit adds an `isPower64` predicate to the two existing
predicates for this architecture (`isPower` and `isPowerPC`).

Note that `isPowerPC` matches only 32-bit machines, whereas `isPower`
matches both 64-bit and 32-bit machines.  Prior to this commit there
was no single `isXXX` predicate for `powerpc64le`.
2022-04-10 01:56:28 -07:00
Adam Joseph
ff69b8c2bf Ericson2314's suggestion here: https://github.com/NixOS/nixpkgs/pull/161158#discussion_r822295406 2022-03-10 20:30:19 -08:00
Adam Joseph
6de935a012 This commit adds only comments to platforms.nix. 2022-03-10 20:30:19 -08:00
Adam Joseph
ed4fa55fc3 comment: explain why gnuabi64 has a rustc.config but gnuabin32 does not. 2022-03-10 20:30:18 -08:00
Adam Joseph
998fd408e0 remove float = "hard" from mips entries 2022-03-10 20:30:18 -08:00
Adam Joseph
e748e1fd18 https://github.com/NixOS/nixpkgs/pull/161158#pullrequestreview-903824553 2022-03-10 20:30:18 -08:00