Wolfgang Jeltsch pushed to branch wip/jeltsch/text-read-uncovering at Glasgow Haskell Compiler / GHC

Commits:

• 04d143c0
  by Luite Stegeman at 2026-04-21T14:05:33-04:00

  rts: add a few missing i386 relocations in the rts linker
  

• 014087e7
  by Luite Stegeman at 2026-04-21T14:05:34-04:00

  CodeOutput: Fix finalizers on multiple platforms
  
   - ELF platforms: emit .fini_array section
   - wasm32/Darwin: emit initializer with __cxa_atexit call
   - Windows: use -Wl,--whole-archive to prevent dropping finalizer symbols
   - rts linker: fix crash/assertion failure unloading objects with finalizers
  
  fixes #27072
  

• 915bba6f
  by Simon Jakobi at 2026-04-21T14:06:16-04:00

  Add regression test for #10531
  
  Closes #10531.
  

• 86a646a6
  by Andreas Klebinger at 2026-04-22T13:00:05-04:00

  Revert use of generic instances for compiler time perf reasons.
  
  Revert "Derive Semigroup/Monoid for instances believed could be derived in #25871"
  
  This reverts commit 11a04cbb221cc404fe00d65d7c951558ede4caa9.
  
  Revert "add Ghc.Data.Pair deriving"
  
  This reverts commit 15d9ce449e1be8c01b89fd39bdf1e700ea7d1dce.
  

• bc9ee1cf
  by Wen Kokke at 2026-04-22T13:00:51-04:00

  hadrian: Fix docs to remove static flavour
  
  In 638f6548, the static flavour was turned into into the fully_static
  flavour transformer. However, this commit did not update flavours.md.
  

• 63fb2291
  by Wolfgang Jeltsch at 2026-04-23T23:16:05+03:00

  Move code that uses `GHC.Internal.Text.Read` into `base`
  
  This contribution serves to remove all dependencies on
  `GHC.Internal.Text.Read` from within `ghc-internal`, so that the
  implementation of `Text.Read` and ultimately more reading-related code
  can be moved to `base` as well.
  
  The following things are moved from `ghc-internal` to `base`:
  
    * I/O-related `Read` instances
    * Most of the `Numeric` implementation
    * The instance `Read ByteOrder`
    * The `parseVersion` operation
    * The `readConstr` operation
  
  Metric Increase:
      LinkableUsage01
      T12425
      T13035
  

58 changed files:

• + changelog.d/fix-finalizers-27072
• compiler/GHC/CmmToAsm/X86/CodeGen.hs
• compiler/GHC/CmmToLlvm/CodeGen.hs
• compiler/GHC/Data/Pair.hs
• compiler/GHC/Driver/CodeOutput.hs
• compiler/GHC/Hs/Type.hs
• compiler/GHC/HsToCore/Pmc.hs
• compiler/GHC/HsToCore/Pmc/Solver/Types.hs
• compiler/GHC/Linker/Executable.hs
• compiler/GHC/Parser/PostProcess/Haddock.hs
• compiler/GHC/Tc/Utils/TcMType.hs
• compiler/GHC/Types/ForeignStubs.hs
• compiler/GHC/Types/Unique/DSet.hs
• compiler/GHC/Utils/Ppr/Colour.hs
• hadrian/doc/flavours.md
• libraries/base/src/Data/Data.hs
• libraries/base/src/Data/Version.hs
• libraries/base/src/GHC/ByteOrder.hs
• libraries/base/src/Numeric.hs
• libraries/base/src/System/IO.hs
• libraries/base/src/Text/Printf.hs
• libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
• libraries/ghc-internal/src/GHC/Internal/Data/Version.hs
• libraries/ghc-internal/src/GHC/Internal/IO/Device.hs
• libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs
• libraries/ghc-internal/src/GHC/Internal/IO/IOMode.hs
• libraries/ghc-internal/src/GHC/Internal/Numeric.hs
• libraries/ghc-internal/src/GHC/Internal/Read.hs
• rts/Linker.c
• rts/LinkerInternals.h
• rts/linker/Elf.c
• + testsuite/tests/codeGen/should_run/T27072d.hs
• + testsuite/tests/codeGen/should_run/T27072d.stdout
• + testsuite/tests/codeGen/should_run/T27072d_c.c
• + testsuite/tests/codeGen/should_run/T27072d_check.c
• + testsuite/tests/codeGen/should_run/T27072w.hs
• + testsuite/tests/codeGen/should_run/T27072w.stdout
• + testsuite/tests/codeGen/should_run/T27072w_c.c
• testsuite/tests/codeGen/should_run/all.T
• + testsuite/tests/driver/T10531/A.hs
• + testsuite/tests/driver/T10531/B.hs
• + testsuite/tests/driver/T10531/C.hs
• + testsuite/tests/driver/T10531/Makefile
• + testsuite/tests/driver/T10531/all.T
• testsuite/tests/interface-stability/base-exports.stdout
• testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
• testsuite/tests/interface-stability/base-exports.stdout-mingw32
• testsuite/tests/interface-stability/base-exports.stdout-ws-32
• testsuite/tests/plugins/plugins09.stdout
• testsuite/tests/plugins/plugins10.stdout
• testsuite/tests/plugins/plugins11.stdout
• testsuite/tests/plugins/static-plugins.stdout
• + testsuite/tests/rts/linker/T27072/Lib.c
• + testsuite/tests/rts/linker/T27072/Makefile
• + testsuite/tests/rts/linker/T27072/T27072.stdout
• + testsuite/tests/rts/linker/T27072/all.T
• + testsuite/tests/rts/linker/T27072/main.c
• testsuite/tests/th/all.T

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