Use gdbpy_enter in python.c

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

diff --git a/gdb/frame.h b/gdb/frame.h
index de13e7dc39210424ad71a6e26b1f2df63ad8186a..1d0644f12de59b86130882db5ae02a01d18c103f 100644 (file)
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -1,6 +1,6 @@
 /* Definitions for dealing with stack frames, for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2016 Free Software Foundation, Inc.
+   Copyright (C) 1986-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -77,6 +77,7 @@ struct frame_base;
 struct block;
 struct gdbarch;
 struct ui_file;
+struct ui_out;
 
 /* Status of a given frame's stack.  */
 
@@ -89,6 +90,9 @@ enum frame_id_stack_status
   /* Stack address is valid, and is found in the stack_addr field.  */
   FID_STACK_VALID = 1,
 
+  /* Sentinel frame.  */
+  FID_STACK_SENTINEL = 2,
+
   /* Stack address is unavailable.  I.e., there's a valid stack, but
      we don't know where it is (because memory or registers we'd
      compute it from were not collected).  */
@@ -149,7 +153,7 @@ struct frame_id
   CORE_ADDR special_addr;
 
   /* Flags to indicate the above fields have valid contents.  */
-  ENUM_BITFIELD(frame_id_stack_status) stack_status : 2;
+  ENUM_BITFIELD(frame_id_stack_status) stack_status : 3;
   unsigned int code_addr_p : 1;
   unsigned int special_addr_p : 1;
 
@@ -165,6 +169,9 @@ struct frame_id
 /* For convenience.  All fields are zero.  This means "there is no frame".  */
 extern const struct frame_id null_frame_id;
 
+/* Sentinel frame.  */
+extern const struct frame_id sentinel_frame_id;
+
 /* This means "there is no frame ID, but there is a frame".  It should be
    replaced by best-effort frame IDs for the outermost frame, somehow.
    The implementation is only special_addr_p set.  */
@@ -309,6 +316,10 @@ extern void select_frame (struct frame_info *);
 extern struct frame_info *get_prev_frame (struct frame_info *);
 extern struct frame_info *get_next_frame (struct frame_info *);
 
+/* Like get_next_frame(), but allows return of the sentinel frame.  NULL
+   is never returned.  */
+extern struct frame_info *get_next_frame_sentinel_okay (struct frame_info *);
+
 /* Return a "struct frame_info" corresponding to the frame that called
    THIS_FRAME.  Returns NULL if there is no such frame.
 
@@ -320,6 +331,10 @@ extern struct frame_info *get_prev_frame_always (struct frame_info *);
    is not found.  */
 extern struct frame_info *frame_find_by_id (struct frame_id id);
 
+/* Given a frame's ID, find the previous frame's ID.  Returns null_frame_id
+   if the frame is not found.  */
+extern struct frame_id get_prev_frame_id_by_id (struct frame_id id);
+
 /* Base attributes of a frame: */
 
 /* The frame's `resume' address.  Where the program will resume in