[PATCH 1/5] tools/debugger: Fix PAGE_SIZE redefinition error

[Costin Lupu <costin.lupu@xxxxxxxxx>]

If PAGE_SIZE is already defined in the system (e.g. in
/usr/include/limits.h header) then gcc will trigger a redefinition error
because of -Werror. This commit also protects PAGE_SHIFT definitions for
keeping consistency.

Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 tools/debugger/kdd/kdd-xen.c | 4 ++++
 tools/debugger/kdd/kdd.c     | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/tools/debugger/kdd/kdd-xen.c b/tools/debugger/kdd/kdd-xen.c
index f3f9529f9f..04d2361ba7 100644
--- a/tools/debugger/kdd/kdd-xen.c
+++ b/tools/debugger/kdd/kdd-xen.c
@@ -48,8 +48,12 @@
 
 #define MAPSIZE 4093 /* Prime */
 
+#ifndef PAGE_SHIFT
 #define PAGE_SHIFT 12
+#endif
+#ifndef PAGE_SIZE
 #define PAGE_SIZE (1U << PAGE_SHIFT)
+#endif
 
 struct kdd_guest {
     struct xentoollog_logger xc_log; /* Must be first for xc log callbacks */
diff --git a/tools/debugger/kdd/kdd.c b/tools/debugger/kdd/kdd.c
index 17513c2650..acd5832714 100644
--- a/tools/debugger/kdd/kdd.c
+++ b/tools/debugger/kdd/kdd.c
@@ -288,8 +288,12 @@ static void kdd_log_pkt(kdd_state *s, const char *name, 
kdd_pkt *p)
  *  Memory access: virtual addresses and syntactic sugar.
  */
 
+#ifndef PAGE_SHIFT
 #define PAGE_SHIFT (12)
+#endif
+#ifndef PAGE_SIZE
 #define PAGE_SIZE (1ULL << PAGE_SHIFT) 
+#endif
 
 static uint32_t kdd_read_physical(kdd_state *s, uint64_t addr, 
                                   uint32_t len, void *buf)
-- 
2.20.1