Remove /dev/mem, /dev/kmem, /dev/port support.

	* Makefile.in (DLL_OFILES): Drop fhandler_mem.o.
	(fhandler_mem_CFLAGS): Remove rule.
	* devices.in (enum fh_devices): Remove FH_MEM, FH_KMEM and FH_PORT.
	* devices.cc: Regenerate.
	* dtable.cc (fh_alloc): Drop handling for FH_MEM, FH_KMEM and FH_PORT.
	* fhandler.h (class fhandler_dev_mem): Remove.
	* fhandler_mem.cc: Remove file.
	* globals.cc (ro_u_pmem): Remove.
	* mmap.cc (fhandler_dev_mem::mmap): Remove.
	(fhandler_dev_mem::munmap): Remove.
	(fhandler_dev_mem::fixup_mmap_after_fork): Remove.

1 files changed, 0 insertions, 94 deletions

diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc
index 697ec4099..c68d4195e 100644
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -1811,100 +1811,6 @@ fhandler_disk_file::fixup_mmap_after_fork (HANDLE h, int prot, int flags,
   return base == address;
 }
 
-HANDLE
-fhandler_dev_mem::mmap (caddr_t *addr, size_t len, int prot,
-			int flags, off_t off)
-{
-  if (off >= (off_t) mem_size
-      || len >= mem_size
-      || off + len >= mem_size)
-    {
-      set_errno (EINVAL);
-      debug_printf ("-1 = mmap(): illegal parameter, set EINVAL");
-      return INVALID_HANDLE_VALUE;
-    }
-
-  OBJECT_ATTRIBUTES attr;
-  InitializeObjectAttributes (&attr, &ro_u_pmem,
-			      OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
-			      NULL, NULL);
-
-  /* Section access is bit-wise ored, while on the Win32 level access
-     is only one of the values.  It's not quite clear if the section
-     access has to be defined this way, or if SECTION_ALL_ACCESS would
-     be sufficient but this worked fine so far, so why change? */
-  ACCESS_MASK section_access;
-  if (prot & PROT_WRITE)
-    section_access = SECTION_MAP_READ | SECTION_MAP_WRITE;
-  else
-    section_access = SECTION_MAP_READ;
-
-  HANDLE h;
-  NTSTATUS status = NtOpenSection (&h, section_access, &attr);
-  if (!NT_SUCCESS (status))
-    {
-      __seterrno_from_nt_status (status);
-      debug_printf ("-1 = mmap(): NtOpenSection failed with %E");
-      return INVALID_HANDLE_VALUE;
-    }
-
-  void *base = MapView (h, *addr, len, get_access (), prot,
-			flags | MAP_ANONYMOUS, off);
-  if (!base || (fixed (flags) && base != *addr))
-    {
-      if (!base)
-	__seterrno ();
-      else
-	{
-	  NtUnmapViewOfSection (NtCurrentProcess (), base);
-	  set_errno (EINVAL);
-	  debug_printf ("MapView: address shift with MAP_FIXED given");
-	}
-      NtClose (h);
-      return INVALID_HANDLE_VALUE;
-    }
-
-  *addr = (caddr_t) base;
-  return h;
-}
-
-int
-fhandler_dev_mem::munmap (HANDLE h, caddr_t addr, size_t len)
-{
-  NTSTATUS status;
-  if (!NT_SUCCESS (status = NtUnmapViewOfSection (NtCurrentProcess (), addr)))
-    {
-      __seterrno_from_nt_status (status);
-      return -1;
-    }
-  NtClose (h);
-  return 0;
-}
-
-int
-fhandler_dev_mem::msync (HANDLE h, caddr_t addr, size_t len, int flags)
-{
-  return 0;
-}
-
-bool
-fhandler_dev_mem::fixup_mmap_after_fork (HANDLE h, int prot, int flags,
-					 off_t offset, DWORD size,
-					 void *address)
-{
-  void *base = MapView (h, address, size, get_access (), prot,
-			flags | MAP_ANONYMOUS, offset);
-  if (base != address)
-    {
-      MEMORY_BASIC_INFORMATION m;
-      VirtualQuery (address, &m, sizeof (m));
-      system_printf ("requested %p != %p mem alloc base %p, state %y, "
-		     "size %lu, %E", address, base, m.AllocationBase, m.State,
-		     m.RegionSize);
-    }
-  return base == address;
-}
-
 /* Call to re-create all the file mappings in a forked child. Called from
    the child in initialization. At this point we are passed a valid
    mmapped_areas map, and all the HANDLE's are valid for the child, but