Return unique_xmalloc_ptr from target_fileio_read_stralloc

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

diff --git a/gdb/frame-unwind.h b/gdb/frame-unwind.h
index 4588cef2e73d1f6574611883207da14e718675ba..8226b6db25d532e9fc0abae79b6b26f9ecc26608 100644 (file)
--- a/gdb/frame-unwind.h
+++ b/gdb/frame-unwind.h
@@ -46,7 +46,8 @@ struct value;
    the PC and attributes) and if SELF is the applicable unwinder,
    return non-zero.  Possibly also initialize THIS_PROLOGUE_CACHE; but
    only if returning 1.  Initializing THIS_PROLOGUE_CACHE in other
-   cases (0 return, or exception) is invalid.  */
+   cases (0 return) is invalid.  In case of exception, the caller has
+   to set *THIS_PROLOGUE_CACHE to NULL.  */
 
 typedef int (frame_sniffer_ftype) (const struct frame_unwind *self,
                                   struct frame_info *this_frame,