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{-# LANGUAGE LambdaCase, ScopedTypeVariables #-}
-- | Platform architecture and OS
--
-- We need it in ghc-boot because ghc-pkg needs it.
module GHC.Platform.ArchOS
( ArchOS(..)
, Arch(..)
, OS(..)
, ArmISA(..)
, ArmISAExt(..)
, ArmABI(..)
, PPC_64ABI(..)
, stringEncodeArch
, stringEncodeOS
)
where
import Prelude -- See Note [Why do we import Prelude here?]
-- | Platform architecture and OS.
data ArchOS
= ArchOS
{ archOS_arch :: Arch
, archOS_OS :: OS
}
deriving (Read, Show, Eq, Ord)
-- | Architectures
--
-- TODO: It might be nice to extend these constructors with information about
-- what instruction set extensions an architecture might support.
--
data Arch
= ArchUnknown
| ArchX86
| ArchX86_64
| ArchPPC
| ArchPPC_64 PPC_64ABI
| ArchS390X
| ArchARM ArmISA [ArmISAExt] ArmABI
| ArchAArch64
| ArchAlpha
| ArchMipseb
| ArchMipsel
| ArchRISCV64
| ArchLoongArch64
| ArchJavaScript
| ArchWasm32
deriving (Read, Show, Eq, Ord)
-- | ARM Instruction Set Architecture
data ArmISA
= ARMv5
| ARMv6
| ARMv7
deriving (Read, Show, Eq, Ord)
-- | ARM extensions
data ArmISAExt
= VFPv2
| VFPv3
| VFPv3D16
| NEON
| IWMMX2
deriving (Read, Show, Eq, Ord)
-- | ARM ABI
data ArmABI
= SOFT
| SOFTFP
| HARD
deriving (Read, Show, Eq, Ord)
-- | PowerPC 64-bit ABI
data PPC_64ABI
= ELF_V1 -- ^ PowerPC64
| ELF_V2 -- ^ PowerPC64 LE
deriving (Read, Show, Eq, Ord)
-- | Operating systems.
--
-- Using OSUnknown to generate code should produce a sensible default, but no
-- promises.
data OS
= OSUnknown
| OSLinux
| OSDarwin
| OSSolaris2
| OSMinGW32
| OSFreeBSD
| OSDragonFly
| OSOpenBSD
| OSNetBSD
| OSKFreeBSD
| OSHaiku
| OSQNXNTO
| OSAIX
| OSHurd
| OSWasi
deriving (Read, Show, Eq, Ord)
-- Note [Platform Syntax]
-- ~~~~~~~~~~~~~~~~~~~~~~
--
-- There is a very loose encoding of platforms shared by many tools we are
-- encoding to here. GNU Config (http://git.savannah.gnu.org/cgit/config.git),
-- and LLVM's http://llvm.org/doxygen/classllvm_1_1Triple.html are perhaps the
-- most definitional parsers. The basic syntax is a list of '-'-separated
-- components. The Unix 'uname' command syntax is related but briefer.
--
-- Those two parsers are quite forgiving, and even the 'config.sub'
-- normalization is forgiving too. The "best" way to encode a platform is
-- therefore somewhat a matter of taste.
--
-- The 'stringEncode*' functions here convert each part of GHC's structured
-- notion of a platform into one dash-separated component.
-- | See Note [Platform Syntax].
stringEncodeArch :: Arch -> String
stringEncodeArch = \case
ArchUnknown -> "unknown"
ArchX86 -> "i386"
ArchX86_64 -> "x86_64"
ArchPPC -> "powerpc"
ArchPPC_64 ELF_V1 -> "powerpc64"
ArchPPC_64 ELF_V2 -> "powerpc64le"
ArchS390X -> "s390x"
ArchARM ARMv5 _ _ -> "armv5"
ArchARM ARMv6 _ _ -> "armv6"
ArchARM ARMv7 _ _ -> "armv7"
ArchAArch64 -> "aarch64"
ArchAlpha -> "alpha"
ArchMipseb -> "mipseb"
ArchMipsel -> "mipsel"
ArchRISCV64 -> "riscv64"
ArchLoongArch64 -> "loongarch64"
ArchJavaScript -> "js"
ArchWasm32 -> "wasm32"
-- | See Note [Platform Syntax].
stringEncodeOS :: OS -> String
stringEncodeOS = \case
OSUnknown -> "unknown"
OSLinux -> "linux"
OSDarwin -> "darwin"
OSSolaris2 -> "solaris2"
OSMinGW32 -> "mingw32"
OSFreeBSD -> "freebsd"
OSDragonFly -> "dragonfly"
OSOpenBSD -> "openbsd"
OSNetBSD -> "netbsd"
OSKFreeBSD -> "kfreebsdgnu"
OSHaiku -> "haiku"
OSQNXNTO -> "nto-qnx"
OSAIX -> "aix"
OSHurd -> "hurd"
OSWasi -> "wasi"
|
