Enable mmap crash workaround more widely (copy #2566)

.ci/cabal.project.local

@@ -10,7 +10,7 @@ package *
 
 package clash-prelude
   ghc-options: -Werror
-  flags: +doctests
+  flags: +doctests -workaround-ghc-mmap-crash
   tests: True
   benchmarks: True
 
@@ -24,6 +24,7 @@ package clash-lib
 
 package clash-ghc
   ghc-options: -Werror
+  flags: -workaround-ghc-mmap-crash
 
 package clash-cosim
   ghc-options: -Werror
@@ -47,7 +48,7 @@ package clash-lib-hedgehog
 package clash-testsuite
   ghc-options: -Werror
   -- enable cosim
-  flags: +cosim
+  flags: +cosim -workaround-ghc-mmap-crash
 
 package clash-benchmark
   ghc-options: -Werror

.ci/docker/build-and-publish-docker-image.sh

@@ -7,8 +7,15 @@ NAME="clash-ci-"
 DIR=$(dirname "$0")
 now=$(date +%F)
 
-GHC_VERSIONS=(  "9.0.2"   "8.10.7"  "8.8.4"   "8.6.5")
-CABAL_VERSIONS=("3.4.0.0" "3.2.0.0" "3.2.0.0" "3.0.0.0")
+if [[ "$1" == "-y" ]]; then
+  push=y
+elif [[ "$1" != "" ]]; then
+  echo "Unrecognized argument: $1" >&2
+  exit 1
+fi
+
+GHC_VERSIONS=(  "9.6.2"  "9.4.6"  "9.2.8"   "9.0.2"   "8.10.7"  "8.8.4"   "8.6.5")
+CABAL_VERSIONS=("3.10.1.0" "3.8.1.0" "3.6.2.0" "3.4.0.0" "3.2.0.0" "3.2.0.0" "3.0.0.0")
 
 # We want to use docker buildkit so that our layers are built in parallel. This
 # is ignored completely on versions of docker which don't support buildkit.
@@ -27,7 +34,9 @@ do
     "$DIR"
 done
 
-read -p "Push to GitHub? (y/N) " push
+if [[ "${push}" == "" ]]; then
+  read -p "Push to GitHub? (y/N) " push
+fi
 
 if [[ $push =~ ^[Yy]$ ]]; then
   for i in "${!GHC_VERSIONS[@]}"

.ci/gitlab/benchmark.yml

@@ -1,5 +1,5 @@
 .benchmark:
-  image: ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2022-05-10
+  image: ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2023-08-22
   stage: test
   timeout: 2 hours
   variables:

.ci/gitlab/common.yml

@@ -1,11 +1,11 @@
 .common:
-  image: ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2022-05-10
+  image: ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2023-08-22
   timeout: 10 minutes
   stage: build
   variables:
     # Note that we copy+paste the image name into CACHE_FALLBACK_KEY. If we don't,
     # $GHC_VERSION gets inserted at verbatim, instead of resolving to some ghc version.
-    CACHE_FALLBACK_KEY: $CI_JOB_NAME-1-6-ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2022-05-10-1-3-non_protected
+    CACHE_FALLBACK_KEY: $CI_JOB_NAME-1-6-ghcr.io/clash-lang/clash-ci-$GHC_VERSION:2022-08-22-1-3-non_protected
     GIT_SUBMODULE_STRATEGY: recursive
     TERM: xterm-color
   retry:

.ci/setup.sh

@@ -78,6 +78,10 @@ if [ ! -f cabal.project.local ]; then
   fi
 
   set +u
+  if [[ "$WORKAROUND_GHC_MMAP_CRASH" == "yes" ]]; then
+    sed -i 's/-workaround-ghc-mmap-crash/+workaround-ghc-mmap-crash/g' cabal.project.local
+  fi
+
   if [[ "$GHC_HEAD" == "yes" ]]; then
     cat .ci/cabal.project.local.append-HEAD >> cabal.project.local
   fi

.github/workflows/ci.yml

@@ -100,28 +100,33 @@ jobs:
           - name: GHC 8.6.5, Single Hidden
             ghc: 8.6.5
             multiple_hidden: no
+            workaround_ghc_mmap_crash: yes
 
           - name: GHC 8.8.4, Multiple Hidden
             ghc: 8.8.4
             multiple_hidden: yes
+            workaround_ghc_mmap_crash: yes
 
           - name: GHC 8.10.7, Multiple Hidden
             ghc: 8.10.7
             multiple_hidden: yes
+            workaround_ghc_mmap_crash: yes
 
           - name: GHC 9.0.2, Multiple Hidden
             ghc: 9.0.2
             multiple_hidden: yes
+            workaround_ghc_mmap_crash: yes
 
     # Run steps inside the clash CI docker image
     container:
-      image: ghcr.io/clash-lang/clash-ci-${{ matrix.ghc }}:2022-05-10
+      image: ghcr.io/clash-lang/clash-ci-${{ matrix.ghc }}:2023-08-22
 
       env:
         THREADS: 2
         CABAL_JOBS: 2
         MULTIPLE_HIDDEN: ${{ matrix.multiple_hidden }}
         CI_COMMIT_BRANCH: ${{ github.base_ref }}
+        WORKAROUND_GHC_MMAP_CRASH: ${{ matrix.workaround_ghc_mmap_crash }}
 
     steps:
       - name: Checkout

.gitlab-ci.yml

@@ -34,7 +34,9 @@ tests:
   parallel:
     matrix:
       - GHC_VERSION: [8.8.4, 8.10.7, 9.0.2]
+        WORKAROUND_GHC_MMAP_CRASH: "yes"
       - GHC_VERSION: 8.6.5
+        WORKAROUND_GHC_MMAP_CRASH: "yes"
         MULTIPLE_HIDDEN: "no"
 
 stack-build:

clash-ghc/clash-ghc.cabal

@@ -65,12 +65,24 @@ flag use-ghc-paths
   default: False
   manual: True
 
+flag workaround-ghc-mmap-crash
+  description:
+    Only use this flag when hit by GHC bug #19421. See clash-compiler PR #2444.
+  default: False
+  manual: True
+
 executable clash
   Main-Is:            src-ghc/Batch.hs
   Build-Depends:      base, clash-ghc
-  GHC-Options:        -Wall -Wcompat -threaded -rtsopts -with-rtsopts=-A128m
+  GHC-Options:        -Wall -Wcompat -threaded -rtsopts
   if flag(dynamic)
     GHC-Options: -dynamic
+  -- Note that multiple -with-rtsopts are not cumulative, so we can't add the
+  -- common RTS options in the unconditional GHC-Options
+  if flag(workaround-ghc-mmap-crash)
+    GHC-Options: "-with-rtsopts=-A128m -xm20000000"
+  else
+    GHC-Options: -with-rtsopts=-A128m
   extra-libraries:    pthread
   default-language:   Haskell2010
 

clash-prelude/clash-prelude.cabal

@@ -117,6 +117,12 @@ flag benchmarks
   default: True
   manual: True
 
+flag workaround-ghc-mmap-crash
+  description:
+    Only use this flag when hit by GHC bug #19421. See clash-compiler PR #2444.
+  default: False
+  manual: True
+
 common common-options
   default-language:   Haskell2010
   default-extensions: BangPatterns
@@ -373,6 +379,10 @@ test-suite doctests
       doctest-parallel >= 0.2 && < 0.4,
       filepath
 
+  if flag(workaround-ghc-mmap-crash)
+    ghc-options:    -with-rtsopts=-xm20000000
+
+
 test-suite unittests
   import:           common-options
   type:             exitcode-stdio-1.0

tests/clash-testsuite.cabal

@@ -28,6 +28,12 @@ flag multiple-hidden
   default: False
   manual: True
 
+flag workaround-ghc-mmap-crash
+  description:
+    Only use this flag when hit by GHC bug #19421. See clash-compiler PR #2444.
+  default: False
+  manual: True
+
 common basic-config
   default-language: Haskell2010
   ghc-options: -Wall -Wcompat
@@ -76,6 +82,9 @@ common basic-config
   if flag(multiple-hidden)
     cpp-options:       -DCLASH_MULTIPLE_HIDDEN
 
+  if flag(workaround-ghc-mmap-crash)
+    cpp-options:       -DCLASH_WORKAROUND_GHC_MMAP_CRASH
+
 library
   import: basic-config
   hs-source-dirs:

tests/src/Test/Tasty/Clash.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE KindSignatures #-}
@@ -564,7 +565,11 @@ clashLibTest' modName target extraGhcArgs path =
   clashBuild workDir = ("clash (exec)", singleTest "clash (exec)" (ClashBinaryTest {
       cbBuildTarget=target
     , cbSourceDirectory=sourceDir
-    , cbExtraBuildArgs="-DCLASHLIBTEST" : extraGhcArgs
+    , cbExtraBuildArgs="-DCLASHLIBTEST" :
+#ifdef CLASH_WORKAROUND_GHC_MMAP_CRASH
+        "-with-rtsopts=-xm20000000" :
+#endif
+        extraGhcArgs
     , cbExtraExecArgs=[]
     , cbModName=modName
     , cbOutputDirectory=workDir