2004-04-02 Andrew Cagney <cagney@redhat.com>

[deliverable/binutils-gdb.git] / gdb / frame.h

diff --git a/gdb/frame.h b/gdb/frame.h
index 3e38c6106b52ecb79342771f1e1433984629884a..32b3efaa26b8acbb2fb689a9927cfc3e39224223 100644 (file)
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -40,8 +40,8 @@
    strongly hinting at its unsafeness)
 
    safe_....(): Safer version of various functions, doesn't throw an
-   error (leave this for later?).  Returns non-zero if the fetch
-   succeeds.   Return a freshly allocated error message?
+   error (leave this for later?).  Returns non-zero / non-NULL if the
+   request succeeds, zero / NULL otherwize.
 
    Suffixes:
 
@@ -461,6 +461,11 @@ extern LONGEST get_frame_memory_signed (struct frame_info *this_frame,
 extern ULONGEST get_frame_memory_unsigned (struct frame_info *this_frame,
                                           CORE_ADDR memaddr, int len);
 
+/* Same as above, but return non-zero when the entire memory read
+   succeeds, zero otherwize.  */
+extern int safe_frame_unwind_memory (struct frame_info *this_frame,
+                                    CORE_ADDR addr, void *buf, int len);
+
 /* Return this frame's architecture.  */
 
 extern struct gdbarch *get_frame_arch (struct frame_info *this_frame);