diff options
Diffstat (limited to 'hadrian/src/Flavour.hs')
| -rw-r--r-- | hadrian/src/Flavour.hs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/hadrian/src/Flavour.hs b/hadrian/src/Flavour.hs index 06407e7022..230272ec62 100644 --- a/hadrian/src/Flavour.hs +++ b/hadrian/src/Flavour.hs @@ -1,10 +1,12 @@ module Flavour ( Flavour (..), werror , DocTargets, DocTarget(..) + , splitSections, splitSectionsIf ) where import Expression import Data.Set (Set) +import Packages -- Please update doc/{flavours.md, user-settings.md} when changing this file. -- | 'Flavour' is a collection of build settings that fully define a GHC build. @@ -63,3 +65,26 @@ data DocTarget = Haddocks | SphinxHTML | SphinxPDFs | SphinxMan -- It mimics the CI settings so is useful to turn on when developing. werror :: Flavour -> Flavour werror fl = fl { args = args fl <> (builder Ghc ? notStage0 ? arg "-Werror") } + +-- | Transform the input 'Flavour' so as to build with +-- @-split-sections@ whenever appropriate. You can +-- select which package gets built with split sections +-- by passing a suitable predicate. If the predicate holds +-- for a given package, then @split-sections@ is used when +-- building it. If the given flavour doesn't build +-- anything in a @dyn@-enabled way, then 'splitSections' is a no-op. +splitSectionsIf :: (Package -> Bool) -> Flavour -> Flavour +splitSectionsIf pkgPredicate fl = fl { args = args fl <> splitSectionsArg } + + where splitSectionsArg = do + way <- getWay + pkg <- getPackage + (Dynamic `wayUnit` way) ? pkgPredicate pkg ? + builder (Ghc CompileHs) ? arg "-split-sections" + +-- | Like 'splitSectionsIf', but with a fixed predicate: use +-- split sections for all packages but the GHC library. +splitSections :: Flavour -> Flavour +splitSections = splitSectionsIf (/=ghc) +-- Disable section splitting for the GHC library. It takes too long and +-- there is little benefit. |