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https://github.com/SebastianWendel/nixpkgs.git
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c0085404bd
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>
80 lines
3.8 KiB
Nix
80 lines
3.8 KiB
Nix
{ lib }:
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with import ./parse.nix { inherit lib; };
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with lib.attrsets;
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with lib.lists;
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let abis_ = abis; in
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let abis = lib.mapAttrs (_: abi: builtins.removeAttrs abi [ "assertions" ]) abis_; in
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rec {
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patterns = rec {
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isi686 = { cpu = cpuTypes.i686; };
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isx86_32 = { cpu = { family = "x86"; bits = 32; }; };
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isx86_64 = { cpu = { family = "x86"; bits = 64; }; };
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isPower = { cpu = { family = "power"; }; };
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isPower64 = { cpu = { family = "power"; bits = 64; }; };
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isx86 = { cpu = { family = "x86"; }; };
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isAarch32 = { cpu = { family = "arm"; bits = 32; }; };
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isAarch64 = { cpu = { family = "arm"; bits = 64; }; };
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isMips = { cpu = { family = "mips"; }; };
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isMips32 = { cpu = { family = "mips"; bits = 32; }; };
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isMips64 = { cpu = { family = "mips"; bits = 64; }; };
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isMips64n32 = { cpu = { family = "mips"; bits = 64; }; abi = { abi = "n32"; }; };
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isMips64n64 = { cpu = { family = "mips"; bits = 64; }; abi = { abi = "64"; }; };
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isMmix = { cpu = { family = "mmix"; }; };
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isRiscV = { cpu = { family = "riscv"; }; };
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isRiscV32 = { cpu = { family = "riscv"; bits = 32; }; };
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isRiscV64 = { cpu = { family = "riscv"; bits = 64; }; };
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isRx = { cpu = { family = "rx"; }; };
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isSparc = { cpu = { family = "sparc"; }; };
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isWasm = { cpu = { family = "wasm"; }; };
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isMsp430 = { cpu = { family = "msp430"; }; };
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isVc4 = { cpu = { family = "vc4"; }; };
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isAvr = { cpu = { family = "avr"; }; };
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isAlpha = { cpu = { family = "alpha"; }; };
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isOr1k = { cpu = { family = "or1k"; }; };
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isM68k = { cpu = { family = "m68k"; }; };
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isS390 = { cpu = { family = "s390"; }; };
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isJavaScript = { cpu = cpuTypes.js; };
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is32bit = { cpu = { bits = 32; }; };
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is64bit = { cpu = { bits = 64; }; };
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isBigEndian = { cpu = { significantByte = significantBytes.bigEndian; }; };
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isLittleEndian = { cpu = { significantByte = significantBytes.littleEndian; }; };
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isBSD = { kernel = { families = { inherit (kernelFamilies) bsd; }; }; };
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isDarwin = { kernel = { families = { inherit (kernelFamilies) darwin; }; }; };
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isUnix = [ isBSD isDarwin isLinux isSunOS isCygwin isRedox ];
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isMacOS = { kernel = kernels.macos; };
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isiOS = { kernel = kernels.ios; };
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isLinux = { kernel = kernels.linux; };
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isSunOS = { kernel = kernels.solaris; };
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isFreeBSD = { kernel = kernels.freebsd; };
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isNetBSD = { kernel = kernels.netbsd; };
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isOpenBSD = { kernel = kernels.openbsd; };
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isWindows = { kernel = kernels.windows; };
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isCygwin = { kernel = kernels.windows; abi = abis.cygnus; };
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isMinGW = { kernel = kernels.windows; abi = abis.gnu; };
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isWasi = { kernel = kernels.wasi; };
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isRedox = { kernel = kernels.redox; };
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isGhcjs = { kernel = kernels.ghcjs; };
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isGenode = { kernel = kernels.genode; };
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isNone = { kernel = kernels.none; };
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isAndroid = [ { abi = abis.android; } { abi = abis.androideabi; } ];
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isGnu = with abis; map (a: { abi = a; }) [ gnuabi64 gnu gnueabi gnueabihf ];
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isMusl = with abis; map (a: { abi = a; }) [ musl musleabi musleabihf muslabin32 muslabi64 ];
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isUClibc = with abis; map (a: { abi = a; }) [ uclibc uclibceabi uclibceabihf ];
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isEfi = map (family: { cpu.family = family; })
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[ "x86" "arm" "aarch64" ];
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};
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matchAnyAttrs = patterns:
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if builtins.isList patterns then attrs: any (pattern: matchAttrs pattern attrs) patterns
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else matchAttrs patterns;
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predicates = mapAttrs (_: matchAnyAttrs) patterns;
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}
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