diff options
Diffstat (limited to 'gdb/stack.c')
| -rw-r--r-- | gdb/stack.c | 34 |
1 files changed, 3 insertions, 31 deletions
diff --git a/gdb/stack.c b/gdb/stack.c index 9739f28..23bf9cb 100644 --- a/gdb/stack.c +++ b/gdb/stack.c @@ -32,7 +32,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ extern int addressprint; /* Print addresses, or stay symbolic only? */ extern int info_verbose; /* Verbosity of symbol reading msgs */ -extern unsigned lines_to_list; /* # of lines "list" command shows by default */ +extern int lines_to_list; /* # of lines "list" command shows by default */ extern char *reg_names[]; /* Names of registers */ /* Thie "selected" stack frame is used by default for local and arg access. @@ -899,7 +899,7 @@ find_relative_frame (frame, level_offset_ptr) register int* level_offset_ptr; { register FRAME prev; - register FRAME frame1, frame2; + register FRAME frame1; /* Going up is simple: just do get_prev_frame enough times or until initial frame is reached. */ @@ -911,36 +911,9 @@ find_relative_frame (frame, level_offset_ptr) (*level_offset_ptr)--; frame = prev; } - /* Going down could be done by iterating get_frame_info to - find the next frame, but that would be quadratic - since get_frame_info must scan all the way from the current frame. - The following algorithm is linear. */ + /* Going down is just as simple. */ if (*level_offset_ptr < 0) { -#if 0 -/* This is ancient and unnecessary? -- gnu@cygnus.com - It also loops forever if frame #0 is not current_frame (e.g. when we have - used the "frame" command after the stack was invalid). */ - - /* First put frame1 at innermost frame - and frame2 N levels up from there. */ - frame1 = get_current_frame (); - frame2 = frame1; - while (*level_offset_ptr < 0 && frame2 != frame) - { - frame2 = get_prev_frame (frame2); - (*level_offset_ptr) ++; - } - /* Then slide frame1 and frame2 up in synchrony - and when frame2 reaches our starting point - frame1 must be N levels down from there. */ - while (frame2 != frame) - { - frame1 = get_prev_frame (frame1); - frame2 = get_prev_frame (frame2); - } - return frame1; -#else while (*level_offset_ptr < 0) { frame1 = get_next_frame (frame); if (!frame1) @@ -948,7 +921,6 @@ find_relative_frame (frame, level_offset_ptr) frame = frame1; (*level_offset_ptr)++; } -#endif } return frame; } |