Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

• 5d59fc8f
  by Cheng Shao at 2025-09-28T19:26:27-04:00

  rts: provide stub implementations of ExecPage functions for wasm
  
  This patch provides stub implementations of ExecPage functions for
  wasm. They are never actually invoked at runtime for any non-TNTC
  platform, yet they can cause link-time errors of missing symbols when
  the GHCi.InfoTable module gets linked into the final wasm module (e.g.
  a GHC API program).
  

1 changed file:

• rts/ExecPage.c

Changes:

 #include "linker/MMap.h"

 ExecPage *allocateExecPage(void) {

+#if defined(wasm32_HOST_ARCH)

+    return NULL;

+#else

     ExecPage *page = (ExecPage *) mmapAnon(getPageSize());

     return page;

+#endif

 }

 void freezeExecPage(ExecPage *page) {

+#if !defined(wasm32_HOST_ARCH)

     mprotectForLinker(page, getPageSize(), MEM_READ_EXECUTE);

     flushExec(getPageSize(), page);

+#endif

 }

 void freeExecPage(ExecPage *page) {

+#if !defined(wasm32_HOST_ARCH)

     munmapForLinker(page, getPageSize(), "freeExecPage");

+#endif

 }