gdb/

	Code cleanup - rename 'inline' depth to 'artificial' depth.
	* breakpoint.c (set_momentary_breakpoint): Rename at a caller to
	frame_id_artificial_p, extend the comment.
	* dwarf2-frame-tailcall.c (tailcall_frame_this_id): Rename at a user.
	* frame.c (fprint_frame_id): Rename at a user, change debug output
	text to "artificial=".
	(skip_inlined_frames): Rename to ...
	(skip_artificial_frames): ... here.  Extend the comment.
	(get_stack_frame_id, frame_unwind_caller_id): Rename at a caller.
	(frame_id_inlined_p): Rename to ...
	(frame_id_artificial_p): ... here.  Rename at a user.
	(frame_id_eq, frame_id_inner, frame_unwind_caller_pc)
	(frame_unwind_caller_pc_if_available, frame_unwind_caller_arch): Rename
	at a user.
	* frame.h (struct frame_id): Rename inline_depth to artificial_depth.
	Extend the comment.
	(frame_id_inlined_p): Rename to ...
	(frame_id_artificial_p): ... here.
	* inline-frame.c (inline_frame_this_id): Rename at a user.

6 files changed, 55 insertions, 29 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b5d48f6..141b98c 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,25 @@
+2012-09-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	Code cleanup - rename 'inline' depth to 'artificial' depth.
+	* breakpoint.c (set_momentary_breakpoint): Rename at a caller to
+	frame_id_artificial_p, extend the comment.
+	* dwarf2-frame-tailcall.c (tailcall_frame_this_id): Rename at a user.
+	* frame.c (fprint_frame_id): Rename at a user, change debug output
+	text to "artificial=".
+	(skip_inlined_frames): Rename to ...
+	(skip_artificial_frames): ... here.  Extend the comment.
+	(get_stack_frame_id, frame_unwind_caller_id): Rename at a caller.
+	(frame_id_inlined_p): Rename to ...
+	(frame_id_artificial_p): ... here.  Rename at a user.
+	(frame_id_eq, frame_id_inner, frame_unwind_caller_pc)
+	(frame_unwind_caller_pc_if_available, frame_unwind_caller_arch): Rename
+	at a user.
+	* frame.h (struct frame_id): Rename inline_depth to artificial_depth.
+	Extend the comment.
+	(frame_id_inlined_p): Rename to ...
+	(frame_id_artificial_p): ... here.
+	* inline-frame.c (inline_frame_this_id): Rename at a user.
+
 2012-09-14  Andrew Burgess  <aburgess@broadcom.com>
 
 	* c-typeprint.c (c_type_print_varspec_suffix): Display the size of
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 12f20d6..b841bcd 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -8609,9 +8609,9 @@ set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal,
 {
   struct breakpoint *b;
 
-  /* If FRAME_ID is valid, it should be a real frame, not an inlined
-     one.  */
-  gdb_assert (!frame_id_inlined_p (frame_id));
+  /* If FRAME_ID is valid, it should be a real frame, not an inlined or
+     tail-called one.  */
+  gdb_assert (!frame_id_artificial_p (frame_id));
 
   b = set_raw_breakpoint (gdbarch, sal, type, &momentary_breakpoint_ops);
   b->enable_state = bp_enabled;
diff --git a/gdb/dwarf2-frame-tailcall.c b/gdb/dwarf2-frame-tailcall.c
index fcfeaf4..f284d98 100644
--- a/gdb/dwarf2-frame-tailcall.c
+++ b/gdb/dwarf2-frame-tailcall.c
@@ -223,9 +223,9 @@ tailcall_frame_this_id (struct frame_info *this_frame, void **this_cache,
   *this_id = get_frame_id (next_frame);
   (*this_id).code_addr = get_frame_pc (this_frame);
   (*this_id).code_addr_p = 1;
-  (*this_id).inline_depth = (cache->chain_levels
-			     - existing_next_levels (this_frame, cache));
-  gdb_assert ((*this_id).inline_depth > 0);
+  (*this_id).artificial_depth = (cache->chain_levels
+				 - existing_next_levels (this_frame, cache));
+  gdb_assert ((*this_id).artificial_depth > 0);
 }
 
 /* Find PC to be unwound from THIS_FRAME.  THIS_FRAME must be a part of
diff --git a/gdb/frame.c b/gdb/frame.c
index 9ed49f6..8c44cad 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -226,8 +226,8 @@ fprint_frame_id (struct ui_file *file, struct frame_id id)
   fprint_field (file, "code", id.code_addr_p, id.code_addr);
   fprintf_unfiltered (file, ",");
   fprint_field (file, "special", id.special_addr_p, id.special_addr);
-  if (id.inline_depth)
-    fprintf_unfiltered (file, ",inlined=%d", id.inline_depth);
+  if (id.artificial_depth)
+    fprintf_unfiltered (file, ",artificial=%d", id.artificial_depth);
   fprintf_unfiltered (file, "}");
 }
 
@@ -303,11 +303,12 @@ fprint_frame (struct ui_file *file, struct frame_info *fi)
   fprintf_unfiltered (file, "}");
 }
 
-/* Given FRAME, return the enclosing normal frame for inlined
-   function frames.  Otherwise return the original frame.  */
+/* Given FRAME, return the enclosing frame as found in real frames read-in from
+   inferior memory.  Skip any previous frames which were made up by GDB.
+   Return the original frame if no immediate previous frames exist.  */
 
 static struct frame_info *
-skip_inlined_frames (struct frame_info *frame)
+skip_artificial_frames (struct frame_info *frame)
 {
   while (get_frame_type (frame) == INLINE_FRAME)
     frame = get_prev_frame (frame);
@@ -354,7 +355,7 @@ get_frame_id (struct frame_info *fi)
 struct frame_id
 get_stack_frame_id (struct frame_info *next_frame)
 {
-  return get_frame_id (skip_inlined_frames (next_frame));
+  return get_frame_id (skip_artificial_frames (next_frame));
 }
 
 struct frame_id
@@ -367,10 +368,10 @@ frame_unwind_caller_id (struct frame_info *next_frame)
      returning a null_frame_id (e.g., when a caller requests the frame
      ID of "main()"s caller.  */
 
-  next_frame = skip_inlined_frames (next_frame);
+  next_frame = skip_artificial_frames (next_frame);
   this_frame = get_prev_frame_1 (next_frame);
   if (this_frame)
-    return get_frame_id (skip_inlined_frames (this_frame));
+    return get_frame_id (skip_artificial_frames (this_frame));
   else
     return null_frame_id;
 }
@@ -435,12 +436,12 @@ frame_id_p (struct frame_id l)
 }
 
 int
-frame_id_inlined_p (struct frame_id l)
+frame_id_artificial_p (struct frame_id l)
 {
   if (!frame_id_p (l))
     return 0;
 
-  return (l.inline_depth != 0);
+  return (l.artificial_depth != 0);
 }
 
 int
@@ -472,8 +473,8 @@ frame_id_eq (struct frame_id l, struct frame_id r)
     /* An invalid special addr is a wild card (or unused).  Otherwise
        if special addresses are different, the frames are different.  */
     eq = 0;
-  else if (l.inline_depth != r.inline_depth)
-    /* If inline depths are different, the frames must be different.  */
+  else if (l.artificial_depth != r.artificial_depth)
+    /* If artifical depths are different, the frames must be different.  */
     eq = 0;
   else
     /* Frames are equal.  */
@@ -530,7 +531,7 @@ frame_id_inner (struct gdbarch *gdbarch, struct frame_id l, struct frame_id r)
   if (!l.stack_addr_p || !r.stack_addr_p)
     /* Like NaN, any operation involving an invalid ID always fails.  */
     inner = 0;
-  else if (l.inline_depth > r.inline_depth
+  else if (l.artificial_depth > r.artificial_depth
 	   && l.stack_addr == r.stack_addr
 	   && l.code_addr_p == r.code_addr_p
 	   && l.special_addr_p == r.special_addr_p
@@ -706,14 +707,14 @@ frame_unwind_pc (struct frame_info *this_frame)
 CORE_ADDR
 frame_unwind_caller_pc (struct frame_info *this_frame)
 {
-  return frame_unwind_pc (skip_inlined_frames (this_frame));
+  return frame_unwind_pc (skip_artificial_frames (this_frame));
 }
 
 int
 frame_unwind_caller_pc_if_available (struct frame_info *this_frame,
 				     CORE_ADDR *pc)
 {
-  return frame_unwind_pc_if_available (skip_inlined_frames (this_frame), pc);
+  return frame_unwind_pc_if_available (skip_artificial_frames (this_frame), pc);
 }
 
 int
@@ -2326,7 +2327,7 @@ frame_unwind_arch (struct frame_info *next_frame)
 struct gdbarch *
 frame_unwind_caller_arch (struct frame_info *next_frame)
 {
-  return frame_unwind_arch (skip_inlined_frames (next_frame));
+  return frame_unwind_arch (skip_artificial_frames (next_frame));
 }
 
 /* Stack pointer methods.  */
diff --git a/gdb/frame.h b/gdb/frame.h
index 532fb26..fa80663 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -134,9 +134,11 @@ struct frame_id
   unsigned int code_addr_p : 1;
   unsigned int special_addr_p : 1;
 
-  /* The inline depth of this frame.  A frame representing a "called"
-     inlined function will have this set to a nonzero value.  */
-  int inline_depth;
+  /* It is non-zero for a frame made up by GDB without stack data
+     representation in inferior, such as INLINE_FRAME or TAILCALL_FRAME.
+     Caller of inlined function will have it zero, each more inner called frame
+     will have it increasingly one, two etc.  Similarly for TAILCALL_FRAME.  */
+  int artificial_depth;
 };
 
 /* Methods for constructing and comparing Frame IDs.  */
@@ -178,9 +180,10 @@ extern struct frame_id frame_id_build_wild (CORE_ADDR stack_addr);
    ID.  */
 extern int frame_id_p (struct frame_id l);
 
-/* Returns non-zero when L is a valid frame representing an inlined
-   function.  */
-extern int frame_id_inlined_p (struct frame_id l);
+/* Returns non-zero when L is a valid frame representing a frame made up by GDB
+   without stack data representation in inferior, such as INLINE_FRAME or
+   TAILCALL_FRAME.  */
+extern int frame_id_artificial_p (struct frame_id l);
 
 /* Returns non-zero when L and R identify the same frame, or, if
    either L or R have a zero .func, then the same frame base.  */
diff --git a/gdb/inline-frame.c b/gdb/inline-frame.c
index 06de5b0..cce9ef8 100644
--- a/gdb/inline-frame.c
+++ b/gdb/inline-frame.c
@@ -178,7 +178,7 @@ inline_frame_this_id (struct frame_info *this_frame,
   func = get_frame_function (this_frame);
   gdb_assert (func != NULL);
   (*this_id).code_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (func));
-  (*this_id).inline_depth++;
+  (*this_id).artificial_depth++;
 }
 
 static struct value *