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| author | Ben Gamari <ben@smart-cactus.org> | 2021-11-01 21:18:04 -0400 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-12-21 01:46:00 -0500 |
| commit | 00b55bfcd982bed2c9fc02d9c3ca66ba9d41bb5c (patch) | |
| tree | 7bb39528df6cdb359a45a6726f14e3abd2626157 | |
| parent | 8ea79a16c57a9fcfd091ab7f4aa457e100fa42b5 (diff) | |
| download | haskell-00b55bfcd982bed2c9fc02d9c3ca66ba9d41bb5c.tar.gz | |
Introduce -dlint flag
As suggested in #20601, this is a short-hand for enabling the usual
GHC-internal sanity checks one typically leans on when debugging runtime
crashes.
| -rw-r--r-- | compiler/GHC/Driver/Session.hs | 18 | ||||
| -rw-r--r-- | docs/users_guide/debugging.rst | 12 |
2 files changed, 30 insertions, 0 deletions
diff --git a/compiler/GHC/Driver/Session.hs b/compiler/GHC/Driver/Session.hs index be30e36052..d1c29bc824 100644 --- a/compiler/GHC/Driver/Session.hs +++ b/compiler/GHC/Driver/Session.hs @@ -2535,6 +2535,8 @@ dynamic_flags_deps = [ (setDumpFlag Opt_D_dump_hi_diffs) , make_ord_flag defGhcFlag "ddump-rtti" (setDumpFlag Opt_D_dump_rtti) + , make_ord_flag defGhcFlag "dlint" + (NoArg enableDLint) , make_ord_flag defGhcFlag "dcore-lint" (NoArg (setGeneralFlag Opt_DoCoreLinting)) , make_ord_flag defGhcFlag "dlinear-core-lint" @@ -3922,6 +3924,22 @@ enableUnusedBinds = mapM_ setWarningFlag unusedBindsFlags disableUnusedBinds :: DynP () disableUnusedBinds = mapM_ unSetWarningFlag unusedBindsFlags +-- | Things you get with `-dlint`. +enableDLint :: DynP () +enableDLint = do + mapM_ setGeneralFlag dLintFlags + addWayDynP WayDebug + where + dLintFlags :: [GeneralFlag] + dLintFlags = + [ Opt_DoCoreLinting + , Opt_DoStgLinting + , Opt_DoCmmLinting + , Opt_DoAsmLinting + , Opt_CatchNonexhaustiveCases + , Opt_LlvmFillUndefWithGarbage + ] + enableGlasgowExts :: DynP () enableGlasgowExts = do setGeneralFlag Opt_PrintExplicitForalls mapM_ setExtensionFlag glasgowExtsFlags diff --git a/docs/users_guide/debugging.rst b/docs/users_guide/debugging.rst index 50a6c279a4..f0a929df5e 100644 --- a/docs/users_guide/debugging.rst +++ b/docs/users_guide/debugging.rst @@ -920,6 +920,18 @@ Checking for consistency single: consistency checks single: lint +.. ghc-flag:: -dlint + :shortdesc: Enable several common internal sanity checkers + :type: dynamic + + :implies: -dcore-lint, -dstg-lint, -dcmm-lint, -dasm-lint, -fllvm-fill-undef-with-garbage, -debug + :since: 9.4.1 + + Turn on various heavy-weight intra-pass sanity-checking measures within GHC + and its runtime system. Notably, this does not include + :ghc-flag:`-falignment-sanitisation` as it incurs a rather hefty runtime + cost. + .. ghc-flag:: -dcore-lint :shortdesc: Turn on internal sanity checking :type: dynamic |