server: Processor dependent fallbacks in init_page_size (try 2)

[André Hentschel]

This time taking x86_64 into the faster way
---
 server/mapping.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/server/mapping.c b/server/mapping.c
index f37016f..6fffe44 100644
--- a/server/mapping.c
+++ b/server/mapping.c
@@ -108,14 +108,14 @@ static const struct fd_ops mapping_fd_ops =
 
 static struct list shared_list = LIST_INIT(shared_list);
 
-#ifdef __i386__
+#if defined(__i386__) || defined(__x86_64__)
 
-/* These are always the same on an i386, and it will be faster this way */
+/* These are always the same on an i386/x86_64, and it will be faster this way */
 # define page_mask  0xfff
 # define page_shift 12
 # define init_page_size() do { /* nothing */ } while(0)
 
-#else  /* __i386__ */
+#else  /* defined(__i386__) || defined(__x86_64__) */
 
 static int page_shift, page_mask;
 
@@ -127,6 +127,10 @@ static void init_page_size(void)
 # else
 #  ifdef __svr4__
     page_size = sysconf(_SC_PAGESIZE);
+#  elif defined(__arm__) || defined(__powerpc__)
+    page_size = 4096;
+#  elif defined(__sparc__)
+    page_size = 8192;
 #  else
 #   error Cannot get the page size on this platform
 #  endif
@@ -137,7 +141,7 @@ static void init_page_size(void)
     page_shift = 0;
     while ((1 << page_shift) != page_size) page_shift++;
 }
-#endif  /* __i386__ */
+#endif  /* defined(__i386__) || defined(__x86_64__) */
 
 #define ROUND_SIZE(size)  (((size) + page_mask) & ~page_mask)
 
-- 

Best Regards, André Hentschel