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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 /rts/CloneStack.h | |
| 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 'rts/CloneStack.h')
| -rw-r--r-- | rts/CloneStack.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/rts/CloneStack.h b/rts/CloneStack.h index 5f1c22039d..7e43d090d1 100644 --- a/rts/CloneStack.h +++ b/rts/CloneStack.h @@ -1,9 +1,10 @@ /* --------------------------------------------------------------------------- * - * (c) The GHC Team, 2001-2021 + * (c) The GHC Team, 2020-2021 * - * Stack snapshotting. - */ + * Stack snapshotting and decoding. (Cloning and unwinding.) + * + *---------------------------------------------------------------------------*/ #pragma once @@ -14,10 +15,18 @@ StgStack* cloneStack(Capability* capability, const StgStack* stack); void sendCloneStackMessage(StgTSO *tso, HsStablePtr mvar); +StgMutArrPtrs* decodeClonedStack(Capability *cap, StgStack* stack); + #include "BeginPrivate.h" #if defined(THREADED_RTS) void handleCloneStackMessage(MessageCloneStack *msg); #endif +StgWord getStackFrameCount(StgStack* stack); +StgWord getStackChunkClosureCount(StgStack* stack); +void copyPtrsToArray(Capability *cap, StgMutArrPtrs* arr, StgStack* stack); +StgClosure* createPtrClosure(Capability* cap, InfoProvEnt* ipe); +StgMutArrPtrs* allocateMutableArray(StgWord size); + #include "EndPrivate.h" |