X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=rts%2FRtsUtils.c;h=bf02c328fb45e0c4308f12bbaa03127c738fce8b;hp=af6890570747b5a26fcf6180be0b724c52d9f9e9;hb=143f4381d242e4a1c3174e8a0732a1e48f00a1aa;hpb=db6ac78e2be25a5c8c44d50e073df25653dc0039

diff --git a/rts/RtsUtils.c b/rts/RtsUtils.c
index af68905..bf02c32 100644
--- a/rts/RtsUtils.c
+++ b/rts/RtsUtils.c
@@ -39,19 +39,6 @@
 #include <pthread.h>
 #endif
 
-#if defined(openbsd_HOST_OS) || defined(linux_HOST_OS) || defined(darwin_HOST_OS)
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-
-/* no C99 header stdint.h on OpenBSD? */
-#if defined(openbsd_HOST_OS)
-typedef unsigned long my_uintptr_t;
-#else
-#include <stdint.h>
-typedef uintptr_t my_uintptr_t;
-#endif
-#endif
 
 #if defined(_WIN32)
 #include <windows.h>
@@ -325,42 +312,3 @@ int genericRaise(int sig) {
         return raise(sig);
 #endif
 }
-
-/* -----------------------------------------------------------------------------
-   Allocating executable memory
-   -------------------------------------------------------------------------- */
-
-/* Heavily arch-specific, I'm afraid.. */
-
-/*
- * Allocate len bytes which are readable, writable, and executable.
- *
- * ToDo: If this turns out to be a performance bottleneck, one could
- * e.g. cache the last VirtualProtect/mprotect-ed region and do
- * nothing in case of a cache hit.
- */
-void*
-stgMallocBytesRWX(int len)
-{
-  void *addr = stgMallocBytes(len, "mallocBytesRWX");
-#if defined(i386_HOST_ARCH) && defined(_WIN32)
-  /* This could be necessary for processors which distinguish between READ and
-     EXECUTE memory accesses, e.g. Itaniums. */
-  DWORD dwOldProtect = 0;
-  if (VirtualProtect (addr, len, PAGE_EXECUTE_READWRITE, &dwOldProtect) == 0) {
-    barf("mallocBytesRWX: failed to protect 0x%p; error=%lu; old protection: %lu\n",
-         addr, (unsigned long)GetLastError(), (unsigned long)dwOldProtect);
-  }
-#elif defined(openbsd_HOST_OS) || defined(linux_HOST_OS) || defined(darwin_HOST_OS)
-  /* malloced memory isn't executable by default on OpenBSD */
-  my_uintptr_t pageSize         = sysconf(_SC_PAGESIZE);
-  my_uintptr_t mask             = ~(pageSize - 1);
-  my_uintptr_t startOfFirstPage = ((my_uintptr_t)addr          ) & mask;
-  my_uintptr_t startOfLastPage  = ((my_uintptr_t)addr + len - 1) & mask;
-  my_uintptr_t size             = startOfLastPage - startOfFirstPage + pageSize;
-  if (mprotect((void*)startOfFirstPage, (size_t)size, PROT_EXEC | PROT_READ | PROT_WRITE) != 0) {
-    barf("mallocBytesRWX: failed to protect 0x%p\n", addr);
-  }
-#endif
-  return addr;
-}