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| author | Sven Tennie <sven.tennie@gmail.com> | 2021-04-03 19:35:34 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-09-23 15:59:38 -0400 |
| commit | 29717ecb0711cd03796510fbe9b4bff58c7da870 (patch) | |
| tree | 850a449ef01caeedf8fd8e9156e7eedcd5a028ce /compiler/GHC/Runtime/Heap/Layout.hs | |
| parent | 6f7f59901c047882ba8c9ae8812264f86b12483a (diff) | |
| download | haskell-29717ecb0711cd03796510fbe9b4bff58c7da870.tar.gz | |
Use Info Table Provenances to decode cloned stack (#18163)
Emit an Info Table Provenance Entry (IPE) for every stack represeted info table
if -finfo-table-map is turned on.
To decode a cloned stack, lookupIPE() is used. It provides a mapping between
info tables and their source location.
Please see these notes for details:
- [Stacktraces from Info Table Provenance Entries (IPE based stack unwinding)]
- [Mapping Info Tables to Source Positions]
Metric Increase:
T12545
Diffstat (limited to 'compiler/GHC/Runtime/Heap/Layout.hs')
| -rw-r--r-- | compiler/GHC/Runtime/Heap/Layout.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/Runtime/Heap/Layout.hs b/compiler/GHC/Runtime/Heap/Layout.hs index 1195f83937..3e6f6ed405 100644 --- a/compiler/GHC/Runtime/Heap/Layout.hs +++ b/compiler/GHC/Runtime/Heap/Layout.hs @@ -174,6 +174,7 @@ data SMRep | RTSRep -- The RTS needs to declare info tables with specific Int -- type tags, so this form lets us override the default SMRep -- tag for an SMRep. + deriving Eq -- | True \<=> This is a static closure. Affects how we garbage-collect it. -- Static closure have an extra static link field at the end. @@ -191,6 +192,7 @@ data ClosureTypeInfo | ThunkSelector SelectorOffset | BlackHole | IndStatic + deriving Eq type ConstrDescription = ByteString -- result of dataConIdentity type FunArity = Int @@ -445,6 +447,8 @@ rtsClosureType rep HeapRep False _ _ BlackHole -> BLACKHOLE HeapRep False _ _ IndStatic -> IND_STATIC + StackRep _ -> STACK + _ -> panic "rtsClosureType" -- We export these ones |