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frame: add skip_tailcall_frames

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Add a new function skip_tailcall_frames to skip TAILCALL_FRAME frames.

gdb/
	* frame.h (skip_tailcall_frames): New.
	* frame.c (skip_tailcall_frames): New.
	(frame_pop): Call skip_tailcall_frames.
	* infcmd.c (finish_command): Call skip_tailcall_frames.
This commit is contained in:
Markus Metzger 2016-02-05 09:32:53 +01:00
parent 95c00d15cb
commit 2f3ef606b9
4 changed files with 24 additions and 4 deletions
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7
gdb/ChangeLog
View File

@ -1,3 +1,10 @@
2016-02-12 Markus Metzger <markus.t.metzger@intel.com>
* frame.h (skip_tailcall_frames): New.
* frame.c (skip_tailcall_frames): New.
(frame_pop): Call skip_tailcall_frames.
* infcmd.c (finish_command): Call skip_tailcall_frames.
2016-02-11 Pedro Alves <palves@redhat.com>
* Makefile.in (check-parallel): New rule.

14
gdb/frame.c
View File

@ -438,6 +438,17 @@ skip_artificial_frames (struct frame_info *frame)
return frame;
}
/* See frame.h. */
struct frame_info *
skip_tailcall_frames (struct frame_info *frame)
{
while (get_frame_type (frame) == TAILCALL_FRAME)
frame = get_prev_frame (frame);
return frame;
}
/* Compute the frame's uniq ID that can be used to, later, re-find the
frame. */
@ -972,8 +983,7 @@ frame_pop (struct frame_info *this_frame)
/* Ignore TAILCALL_FRAME type frames, they were executed already before
entering THISFRAME. */
while (get_frame_type (prev_frame) == TAILCALL_FRAME)
prev_frame = get_prev_frame (prev_frame);
prev_frame = skip_tailcall_frames (prev_frame);
/* Make a copy of all the register values unwound from this frame.
Save them in a scratch buffer so that there isn't a race between

4
gdb/frame.h
View File

@ -820,5 +820,9 @@ extern int frame_unwinder_is (struct frame_info *fi,
extern enum language get_frame_language (struct frame_info *frame);
/* Return the first non-tailcall frame above FRAME or FRAME if it is not a
tailcall frame. */
extern struct frame_info *skip_tailcall_frames (struct frame_info *frame);
#endif /* !defined (FRAME_H) */

3
gdb/infcmd.c
View File

@ -2002,8 +2002,7 @@ finish_command (char *arg, int from_tty)
/* Ignore TAILCALL_FRAME type frames, they were executed already before
entering THISFRAME. */
while (get_frame_type (frame) == TAILCALL_FRAME)
frame = get_prev_frame (frame);
frame = skip_tailcall_frames (frame);
/* Find the function we will return from. */