Binfmt
boot.binfmt.emulatedSystems
List of systems to emulate. Will also configure Nix to support your new systems. Warning: the builder can execute all emulated systems within the same build, which introduces impurities in the case of cross compilation.
Type: list of (one of "aarch64-linux", "aarch64_be-linux", "alpha-linux", "armv6l-linux", "armv7l-linux", "i386-linux", "i486-linux", "i586-linux", "i686-linux", "i686-windows", "loongarch64-linux", "mips-linux", "mips64-linux", "mips64-linuxabin32", "mips64el-linux", "mips64el-linuxabin32", "mipsel-linux", "powerpc-linux", "powerpc64-linux", "powerpc64le-linux", "riscv32-linux", "riscv64-linux", "s390x-linux", "sparc-linux", "sparc64-linux", "wasm32-wasi", "wasm64-wasi", "x86_64-linux", "x86_64-windows")
Default
[ ]
Example
["wasm32-wasi""x86_64-windows""aarch64-linux"]
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations
Extra binary formats to register with the kernel. See https://www.kernel.org/doc/html/latest/admin-guide/binfmt-misc.html for more details.
Type: attribute set of (submodule)
Default
{ }
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.fixBinary
Whether to open the interpreter file as soon as the registration is loaded, rather than waiting for a relevant file to be invoked.
See the description of the 'F' flag in the kernel docs for more details.
Type: boolean
Default
false
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.interpreter
The interpreter to invoke to run the program.
Note that the actual registration will point to /run/binfmt/${name}, so the kernel interpreter length limit doesn't apply.
Type: path
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.magicOrExtension
The magic number or extension to match on.
Type: string
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.mask
A mask to be ANDed with the byte sequence of the file before matching
Type: null or string
Default
null
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.matchCredentials
Whether to launch with the credentials and security token of the binary, not the interpreter (e.g. setuid bit).
See the description of the 'C' flag in the kernel docs for more details.
Implies/requires openBinary = true.
Type: boolean
Default
false
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.offset
The byte offset of the magic number used for recognition.
Type: null or signed integer
Default
null
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.openBinary
Whether to pass the binary to the interpreter as an open file descriptor, instead of a path.
Type: boolean
Default
false
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.preserveArgvZero
Whether to pass the original argv[0] to the interpreter.
See the description of the 'P' flag in the kernel docs for more details;
Type: boolean
Default
false
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.recognitionType
Whether to recognize executables by magic number or extension.
Type: one of "magic", "extension"
Default
"magic"
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix
boot.binfmt.registrations.<name>.wrapInterpreterInShell
Whether to wrap the interpreter in a shell script.
This allows a shell command to be set as the interpreter.
Type: boolean
Default
true
Declared by: https://github.com/nixos/nixpkgs/blob/master/nixos/modules/system/boot/binfmt.nix