Make compare-sections work against all targets; add compare-sections [-r] tests.

[deliverable/binutils-gdb.git] / gdb / target.c

diff --git a/gdb/target.c b/gdb/target.c
index 1b48f796187730dc1cc4eba956b78a1a788c1053..d08e2ea720210047ff23355cf5a01fde378661c1 100644 (file)
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -73,6 +73,10 @@ static int default_search_memory (struct target_ops *ops,
                                  ULONGEST pattern_len,
                                  CORE_ADDR *found_addrp);
 
+static int default_verify_memory (struct target_ops *self,
+                                 const gdb_byte *data,
+                                 CORE_ADDR memaddr, ULONGEST size);
+
 static void tcomplain (void) ATTRIBUTE_NORETURN;
 
 static int return_zero (struct target_ops *);
@@ -3260,6 +3264,45 @@ target_core_of_thread (ptid_t ptid)
   return retval;
 }
 
+int
+simple_verify_memory (struct target_ops *ops,
+                     const gdb_byte *data, CORE_ADDR lma, ULONGEST size)
+{
+  LONGEST total_xfered = 0;
+
+  while (total_xfered < size)
+    {
+      ULONGEST xfered_len;
+      enum target_xfer_status status;
+      gdb_byte buf[1024];
+      ULONGEST howmuch = min (sizeof (buf), size - total_xfered);
+
+      status = target_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+                                   buf, NULL, lma + total_xfered, howmuch,
+                                   &xfered_len);
+      if (status == TARGET_XFER_OK
+         && memcmp (data + total_xfered, buf, xfered_len) == 0)
+       {
+         total_xfered += xfered_len;
+         QUIT;
+       }
+      else
+       return 0;
+    }
+  return 1;
+}
+
+/* Default implementation of memory verification.  */
+
+static int
+default_verify_memory (struct target_ops *self,
+                      const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
+{
+  /* Start over from the top of the target stack.  */
+  return simple_verify_memory (current_target.beneath,
+                              data, memaddr, size);
+}
+
 int
 target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
 {