EmulatorPkg: fixes for NetBSD compilation

[tlaronde@polynum.com]

diff --git a/EmulatorPkg/Unix/Host/BlockIo.c b/EmulatorPkg/Unix/Host/BlockIo.c
index cf2d6b4cda..c0c694be55 100644
--- a/EmulatorPkg/Unix/Host/BlockIo.c
+++ b/EmulatorPkg/Unix/Host/BlockIo.c
@@ -133,6 +133,20 @@ EmuBlockIoOpenDevice (
 
       ioctl (Private->fd, DKIOCGETMAXBLOCKCOUNTWRITE, &Private->Media->OptimalTransferLengthGranularity);
     }
+ #elif _NETBSD_SOURCE
+    {
+      u_int  BlockSize;
+      off_t  DiskSize;
+
+      if (ioctl (Private->fd,  DIOCGSECTORSIZE, &BlockSize) == 0) {
+        Private->Media->BlockSize = BlockSize;
+      }
+
+      if (ioctl (Private->fd, DIOCGMEDIASIZE, &DiskSize) == 0) {
+        Private->NumberOfBlocks   = DivU64x32 (DiskSize, (UINT32)BlockSize);
+        Private->Media->LastBlock = Private->NumberOfBlocks - 1;
+      }
+    }
  #else
     {
       size_t  BlockSize;
@@ -154,7 +168,7 @@ EmuBlockIoOpenDevice (
     Private->Media->LastBlock = Private->NumberOfBlocks - 1;
 
     if (fstatfs (Private->fd, &buf) == 0) {
- #if __APPLE__
+ #if __APPLE__ || _NETBSD_SOURCE
       Private->Media->OptimalTransferLengthGranularity = buf.f_iosize/buf.f_bsize;
  #else
       Private->Media->OptimalTransferLengthGranularity = buf.f_bsize/buf.f_bsize;
diff --git a/EmulatorPkg/Unix/Host/Host.c b/EmulatorPkg/Unix/Host/Host.c
index 38c01c84af..c505300129 100644
--- a/EmulatorPkg/Unix/Host/Host.c
+++ b/EmulatorPkg/Unix/Host/Host.c
@@ -12,6 +12,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define MAP_ANONYMOUS  MAP_ANON
 #endif
 
+#ifdef _NETBSD_SOURCE
+#define MAP_ANON_FD_ (-1)
+#else
+#define MAP_ANON_FD_ (0)
+#endif
+
 //
 // Globals
 //
@@ -187,7 +193,7 @@ main (
   //
   InitialStackMemorySize = STACK_SIZE;
   InitialStackMemory     = (UINTN)MapMemory (
-                                    0,
+                                    MAP_ANON_FD_,
                                     (UINT32)InitialStackMemorySize,
                                     PROT_READ | PROT_WRITE | PROT_EXEC,
                                     MAP_ANONYMOUS | MAP_PRIVATE
@@ -348,6 +354,7 @@ MapMemory (
   while ((!isAligned) && (base != 0)) {
     res = mmap ((void *)base, length, prot, flags, fd, 0);
     if (res == MAP_FAILED) {
+      perror("MapMemory");
       return NULL;
     }
 
@@ -640,7 +647,7 @@ SecUnixPeiAutoScan (
 
   *MemoryBase = 0;
   res         = MapMemory (
-                  0,
+                  MAP_ANON_FD_,
                   gSystemMemory[Index].Size,
                   PROT_READ | PROT_WRITE | PROT_EXEC,
                   MAP_PRIVATE | MAP_ANONYMOUS
diff --git a/EmulatorPkg/Unix/Host/Host.h b/EmulatorPkg/Unix/Host/Host.h
index 0c81cdfc01..0de925adaf 100644
--- a/EmulatorPkg/Unix/Host/Host.h
+++ b/EmulatorPkg/Unix/Host/Host.h
@@ -31,6 +31,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 #if __CYGWIN__
   #include <sys/dirent.h>
+#elif _NETBSD_SOURCE
+  #include <dirent.h>
 #else
   #include <sys/dir.h>
 #endif
@@ -55,7 +57,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <net/if.h>
 #include <ifaddrs.h>
 
-#ifdef __APPLE__
+#if defined(__APPLE__)
   #include <net/if_dl.h>
   #include <net/bpf.h>
   #include <sys/param.h>
@@ -65,6 +67,9 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
   #ifndef _Bool
 #define _Bool  char  // for clang debug
   #endif
+#elif defined(_NETBSD_SOURCE)
+  #define statfs statvfs
+  #define fstatfs fstatvfs
 #else
   #include <termio.h>
   #include <sys/vfs.h>

signed-off-by: Thierry LARONDE <tlaronde@polynum.com>
-- 
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
                     http://www.kergis.com/
                    http://kertex.kergis.com/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89  250D 52B1 AE95 6006 F40C