Add "emulator" function to systems #50212
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GrahamcOfBorg
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6.topic: nixos
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Success on x86_64-linux (full log) Attempted: libxml2, talloc, unscd Partial log (click to expand)
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Success on aarch64-linux (full log) Attempted: libxml2, talloc, unscd Partial log (click to expand)
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Success on x86_64-darwin (full log) Attempted: libxml2, talloc The following builds were skipped because they don't evaluate on x86_64-darwin: unscd Partial log (click to expand)
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Success on x86_64-darwin (full log) Attempted: libxml2, qemu, talloc, vde2 The following builds were skipped because they don't evaluate on x86_64-darwin: unscd Partial log (click to expand)
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Timed out, unknown build status on x86_64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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Success on aarch64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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matthewbauer
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Success on x86_64-darwin (full log) Attempted: libxml2, qemu, talloc, vde2 The following builds were skipped because they don't evaluate on x86_64-darwin: unscd Partial log (click to expand)
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Success on aarch64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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Success on aarch64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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Success on x86_64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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Success on x86_64-darwin (full log) Attempted: libxml2, qemu, talloc, vde2 The following builds were skipped because they don't evaluate on x86_64-darwin: unscd Partial log (click to expand)
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Timed out, unknown build status on x86_64-linux (full log) Attempted: libxml2, qemu, talloc, unscd, vde2 Partial log (click to expand)
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@GrahamcOfBorg build pkgsCross.aarch64-multiplatform.talloc pkgsCross.mingwW64.talloc pkgsCross.powernv.talloc tests.cross.aarch64-multiplatform tests.cross.mingwW64 tests.cross.musl64 tests.cross.fuloongminipc |
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Failure on aarch64-linux (full log) Attempted: pkgsCross.aarch64-multiplatform.talloc, pkgsCross.powernv.talloc, tests.cross.aarch64-multiplatform, tests.cross.musl64, tests.cross.fuloongminipc The following builds were skipped because they don't evaluate on aarch64-linux: pkgsCross.mingwW64.talloc, tests.cross.mingwW64 Partial log (click to expand)
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Timed out, unknown build status on x86_64-darwin (full log) Attempted: pkgsCross.aarch64-multiplatform.talloc, pkgsCross.powernv.talloc, tests.cross.aarch64-multiplatform, tests.cross.mingwW64, tests.cross.musl64, tests.cross.fuloongminipc The following builds were skipped because they don't evaluate on x86_64-darwin: pkgsCross.mingwW64.talloc Partial log (click to expand)
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Timed out, unknown build status on x86_64-linux (full log) Attempted: pkgsCross.aarch64-multiplatform.talloc, pkgsCross.powernv.talloc, tests.cross.aarch64-multiplatform, tests.cross.mingwW64, tests.cross.musl64, tests.cross.fuloongminipc The following builds were skipped because they don't evaluate on x86_64-linux: pkgsCross.mingwW64.talloc Partial log (click to expand)
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matthewbauer
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GrahamcOfBorg
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10.rebuild-linux: 11-100
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6.topic: nixos
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Timed out, unknown build status on x86_64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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Mic92
reviewed
Nov 14, 2018
pkgs/top-level/all-packages.nix
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| # built stuff on the local system. Emulators, simulators, and more. | ||
| # Note this will give you a path to an executable - not a derivation. | ||
| # Don’t rely on using a certain emulator. | ||
| exeWrapper = platform: |
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The expression is large enough to be imported from an external file.
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Success on aarch64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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Success on x86_64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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Success on x86_64-darwin (full log) Attempted: qemu, talloc Partial log (click to expand)
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@GrahamcOfBorg build pkgs.tests.cross.hello |
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No attempt on x86_64-darwin (full log) The following builds were skipped because they don't evaluate on x86_64-darwin: pkgs.tests.cross.hello Partial log (click to expand)
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No attempt on aarch64-linux (full log) The following builds were skipped because they don't evaluate on aarch64-linux: pkgs.tests.cross.hello Partial log (click to expand)
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Unexpected error: command failed with exit code 1 on x86_64-linux (full log) Attempted: pkgs.tests.cross.hello Partial log (click to expand)
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matthewbauer
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matthewbauer
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Nov 20, 2018
| "powerpc64le" = "ppc64"; | ||
| }.${final.parsed.cpu.name} or final.parsed.cpu.name; | ||
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| emulator = pkgs: let |
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@Ericson2314 How do you feel about putting this in lib/systems/default.nix? I want to avoid sticking it in "pkgs" as that is only really supposed to contain callPackage usages.
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Can you move the emulator stuff to its own file?
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Success on aarch64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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Success on x86_64-darwin (full log) Attempted: qemu, talloc Partial log (click to expand)
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Timed out, unknown build status on x86_64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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matthewbauer
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@GrahamcOfBorg build pkgs.tests.cross.hello.aarch64-multiplatform |
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Failure on aarch64-linux (full log) Attempted: pkgs.tests.cross.hello.aarch64-multiplatform Partial log (click to expand)
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No attempt on x86_64-linux (full log) The following builds were skipped because they don't evaluate on x86_64-linux: pkgs.tests.cross.hello.aarch64-multiplatform Partial log (click to expand)
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Makes it easier to use mapAttrs with lib.systems.examples. Now every entry in it are legitimate systems.
You can use stdenv.hostPlatform.emulator to get an executable that runs cross-built binaries. This could be any emulator. For instance, we use QEMU to emulate Linux targets and Wine to emulate Windows targets. To work with qemu, we need to support custom targets. I’ve reworked the cross tests in pkgs/test/cross to use this functionality. Also, I’ve used talloc to cross-execute with the emulator. There appears to be a cross-execute for all waf builds. In the future, it would be nice to set this for all waf builds. Adds stdenv.hostPlatform.qemuArch attrbute to get the qemuArch for each platform.
matthewbauer
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Success on x86_64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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Success on aarch64-linux (full log) Attempted: qemu, talloc Partial log (click to expand)
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I wonder if this can be used to help cross compile packages that use gobject-introspection. |
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exeWrapper is based on meson's exe_wrapper idea. Basically, it will give you an emulator that can run whatever executable you want. It is useful for instance in "waf" build systems that expect a "--cross-execute" flag to run some configuration tests. We can use QEMU to emulate Linxux systems. On windows systems we can use WINE.
I am hoping this is useful in more things, for instance running, some tests in the emulator when doing cross compilation.
The QEMU system should be able to run Linux. Running
pkgs.exeWrapper { config = "aarch64-unknown-linux-gnu"; }, will give you a bash script to emulate an aarch64 system. I have already rewritten the Nixpkgs cross tests to use this (and can probably add them to release-cross.nix).