Added new library.h header for libwine definitions.
Added getpagesize() and wine_anon_mmap() portability functions.
diff --git a/library/port.c b/library/port.c
index a23711a..c641d69 100644
--- a/library/port.c
+++ b/library/port.c
@@ -23,6 +23,9 @@
#include <errno.h>
#include <fcntl.h>
#include <termios.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
#ifdef HAVE_LIBIO_H
# include <libio.h>
#endif
@@ -103,6 +106,22 @@
}
#endif /* HAVE_STRERROR */
+
+/***********************************************************************
+ * getpagesize
+ */
+#ifndef HAVE_GETPAGESIZE
+size_t getpagesize(void)
+{
+# ifdef __svr4__
+ return sysconf(_SC_PAGESIZE);
+# else
+# error Cannot get the page size on this platform
+# endif
+}
+#endif /* HAVE_GETPAGESIZE */
+
+
/***********************************************************************
* clone
*/
@@ -339,3 +358,35 @@
#endif /* defined(__BEOS__) */
}
#endif /* !defined(HAVE_STATFS) */
+
+
+/***********************************************************************
+ * wine_anon_mmap
+ *
+ * Portable wrapper for anonymous mmaps
+ */
+void *wine_anon_mmap( void *start, size_t size, int prot, int flags )
+{
+ static int fdzero = -1;
+
+#ifdef MAP_ANON
+ flags |= MAP_ANON;
+#else
+ if (fdzero == -1)
+ {
+ if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
+ {
+ perror( "/dev/zero: open" );
+ exit(1);
+ }
+ }
+#endif /* MAP_ANON */
+ /* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
+#ifdef MAP_SHARED
+ flags &= ~MAP_SHARED;
+#endif
+#ifdef MAP_PRIVATE
+ flags |= MAP_PRIVATE;
+#endif
+ return mmap( start, size, prot, flags, fdzero, 0 );
+}
