gdb/gdb/dummy-frame.c

1 /* Code dealing with dummy stack frames, for GDB, the GNU debugger.
26 #include "dummy-frame.h"
56   /* Address range of the call dummy code.  Look for PC in the range
66    Search the stack of dummy frames for one matching the given PC and
79       /* Does the PC fall within the dummy frame's breakpoint
98              saved the dummy frame's top-of-stack.  Try matching the
100              to fix a problem with GDB not correctly finding a dummy
106       /* The FP matches this dummy frame.  */
116   struct dummy_frame *dummy = find_dummy_frame (pc, fp);
117   if (dummy != NULL)
118     return dummy->regcache;
134    Return true if the PC falls in a dummy frame created by gdb for an
145 /* Return non-zero if the PC falls in a dummy frame.
155    !DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET_P yet generic dummy
200 /* Save all the registers on the dummy frame stack.  Most ports save the
213   /* check to see if there are stale dummy frames,
248 /* Record the upper/lower bounds on the address of the call dummy.  */
257 /* Restore the machine state from either the saved dummy stack or a
265     /* NOTE: cagney/2002-22-23: Does this ever occure?  Surely a dummy
272 /* Discard the innermost dummy frame from the dummy frame stack
293     error ("Can't pop dummy frame!");
300 /* Given a call-dummy dummy-frame, return the registers.  Here the
310   struct dummy_frame *dummy;
316   dummy = (*this_prologue_cache);
317   gdb_assert (dummy != NULL);
319   /* Describe the register's location.  Generic dummy frames always
333       regcache_cooked_read (dummy->regcache, regnum, bufferp);
337 /* Assuming that THIS frame is a dummy (remember, the NEXT and not
340    the method unwind_dummy_id().  As a side effect, THIS dummy frame's
341    dummy cache is located and and saved in THIS_PROLOGUE_CACHE.  */
348   struct dummy_frame *dummy = (*this_prologue_cache);
349   if (dummy != NULL)
351       (*this_id) = dummy->id;
356      prologue analysis, or the dwarf2 CFI).  In the case of a dummy
364 	 dummy ID from the next frame.  Note that this method uses
366 	 determine the dummy frame's ID.  */
372 	 at a stack dummy.  Fake up the dummy frame's ID using the
391 	 we're trying to unwind to a dummy.  The architecture must
451 	perror_with_name ("maintenance print dummy-frames");
462   add_cmd ("dummy-frames", class_maintenance, maintenance_print_dummy_frames,
463 	   "Print the contents of the internal dummy-frame stack.",