Moduleghc-toolchain-0.1.0.0Haskell2010

GHC.Toolchain.Target

3 types
8 values

Packageghc-toolchain-0.1.0.0
Exports11
LanguageHaskell2010
LicenceNONE
SourceTarget.hs

A Toolchain Target

4 declarations

datadata Target

A Target consists of:

a target architecture and operating system
various bits of information about the platform
various toolchain components targetting that platform

Constructors

Target
- tgtArchOs :: ArchOS
- tgtVendor :: Maybe String
  This is the vendor component of the triple, the other two components are found in tgtArchOs
- tgtLocallyExecutable :: Bool
- tgtSupportsGnuNonexecStack :: Bool
- tgtSupportsSubsectionsViaSymbols :: Bool
- tgtSupportsIdentDirective :: Bool
- tgtWordSize :: WordSize
- tgtEndianness :: ByteOrder
- tgtSymbolsHaveLeadingUnderscore :: Bool
- tgtLlvmTarget :: String
- tgtUnregisterised :: Bool
- tgtTablesNextToCode :: Bool
- tgtUseLibffiForAdjustors :: Bool
  We need to know whether or not to include libffi headers, and generate additional code for it
- tgtHasLibm :: Bool
  Does this target have a libm library that should always be linked against?
- tgtRTSWithLibdw :: Maybe Library
  Whether this target RTS is built with libdw support (for DWARF unwinding), and if yes, the Library configuration.
- tgtCCompiler :: Cc
- tgtCxxCompiler :: Cxx
- tgtCPreprocessor :: Cpp
- tgtHsCPreprocessor :: HsCpp
- tgtJsCPreprocessor :: Maybe JsCpp
- tgtCmmCPreprocessor :: CmmCpp
  We set it only in javascript target
- tgtCCompilerLink :: CcLink
- tgtAr :: Ar
- tgtRanlib :: Maybe Ranlib
  N.B. Most ar implementations will add an index by default without ranlib so this is often optional
- tgtNm :: Nm
- tgtMergeObjs :: Maybe MergeObjs
  We don't need a merge objects tool if we Ar supports -L
- tgtLlc :: Maybe Program
- tgtOpt :: Maybe Program
- tgtLlvmAs :: Maybe Program
  assembler used to assemble LLVM backend output; typically clang
- tgtWindres :: Maybe Program
- tgtOtool :: Maybe Program
- tgtInstallNameTool :: Maybe Program

Instances4Eq, Ord, Read, Show

Eq TargetDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Ord TargetDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Read TargetDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Show TargetDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Handwritten Show instance to have have better diffs against the toolchain targets generated by configure

valuetargetPlatformTriple :: Target -> String

Reconstruct the platform triple from a toolchain target (specifically from tgtArchOs and tgtVendor)

datadata WordSize

WS4 WS8

Instances4Eq, Ord, Read, Show

Eq WordSizeDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Ord WordSizeDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Read WordSizeDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target
Show WordSizeDefined in ghc-toolchain-0.1.0.0 · GHC.Toolchain.Target

valuewordSize2Bytes :: WordSize -> Int

The word size as an integer representing the number of bytes

Queries

valuetgtSupportsSMP :: Target -> Bool

valuetgtRTSLinkerOnlySupportsSharedLibs :: Target -> Bool

Does the target RTS linker only support loading shared libraries? If true, this has several implications: 1. The GHC driver must not do loadArchive/loadObj etc and must always do loadDLL, regardless of whether host GHC is dynamic or not. 2. The GHC driver will always enable -dynamic-too when compiling vanilla way with TH codegen requirement. 3. ghci will always enforce dynamic ways even if -dynamic or -dynamic-too is not explicitly passed. 4. Cabal must not build ghci objects since it's not supported by the target. 5. The testsuite driver will use dyn way for TH/ghci tests even when host GHC is static. 6. TH/ghci doesn't work if stage1 is built without shared libraries (e.g. quickest/fully_static).

Lenses

value_tgtCC :: Lens Target Cc

value_tgtCxx :: Lens Target Cxx

value_tgtCpp :: Lens Target Cpp

value_tgtHsCpp :: Lens Target HsCpp

Re-exports

1 declaration

datadata ByteOrder

Byte ordering.

Constructors

BigEndian
most-significant-byte occurs in lowest address.
LittleEndian
least-significant-byte occurs in lowest address.

Instances8Bounded, Enum, Eq, Ord, Read, Show, …

Bounded ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.ByteOrder
Enum ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.ByteOrder
Eq ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.ByteOrder
Ord ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.ByteOrder
Read ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.Read
Show ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.ByteOrder
Generic ByteOrderDefined in ghc-internal-10.0.0 · GHC.Internal.Generics
type Rep ByteOrder = D1 ('MetaData "ByteOrder" "GHC.Internal.ByteOrder" "ghc-internal" 'False) (C1 ('MetaCons "BigEndian" 'PrefixI 'False) U1 :+: C1 ('MetaCons "LittleEndian" 'PrefixI 'False) U1)Defined in ghc-internal-10.0.0 · GHC.Internal.Generics