gdb/ChangeLog

	* ax-gdb.c: Include location.h.
	(agent_command_1)) Use linespec location instead of address
	string.
	* break-catch-throw.c: Include location.h
	(re_set_exception_catchpoint): Use linespec location instead
	of address string.
	* breakpoint.c: Include location.h.
	(create_overlay_event_breakpoint): Use linespec location
	instead of address string.
	(create_longjmp_master_breakpoint): Likewise.
	(create_std_terminate_master_breakpoint): Likewise.
	(create_exception_master_breakpoint): Likewise.
	(update_breakpoints_after_exec): Likewise.
	(print_breakpoint_location): Use locations and
	event_location_to_string.
	(print_one_breakpoint_location): Likewise.
	(init_raw_breakpoint_without_location): Initialize
	b->location.
	(create_thread_event_breakpoint): Use linespec location instead of
	address string.
	(init_breakpoint_sal): Likewise.
	Only save extra_string if it is non-NULL and not the empty string.
	Use event_location_to_string instead of `addr_string'.
	Constify `p'.
	Use skip_spaces_const/skip_space_const instead of non-const versions.
	Copy the location into the breakpoint.
	If LOCATION is NULL, save the breakpoint address as a linespec location
	instead of an address string.
	(create_breakpoint_sal): Change `addr_string' parameter to a struct
	event_location. All uses updated.
	(create_breakpoints_sal): Likewise for local variable `addr_string'.
	(parse_breakpoint_sals): Use locations instead of address strings.
	Guard against NULL address string when not using the default
	breakpoint.
	Refactor.
	(create_breakpoint): Change `arg' to a struct event_location and
	rename.
	Remove `copy_arg' and `addr_start'.
	If EXTRA_STRING is empty, set it to NULL.
	For non-linespec locations, pass `extra_string' to
	find_condition_and_thread.
	Copy the location into the breakpoint instead of an address string.
	(break_command_1): Use string_to_event_location and pass this to
	create_breakpoint instead of an address string.
	Check against `arg_cp' for a probe linespec.
	(dprintf_command): Use string_to_event_location and pass this to
	create_breakpoint instead of an address string.
	(print_recreate_ranged_breakpoint): Use event_location_to_string
	instead of address strings.
	(break_range_command): Use locations instead of address strings.
	(until_break_command): Likewise.
	(init_ada_exception_breakpoint): Likewise.
	(say_where): Likewise.
	(base_breakpoint_dtor): Delete `location' and `location_range_end' of
	the breakpoint.
	(base_breakpoint_create_sals_from_location): Use struct event_location
	instead of address string.
	Remove `addr_start' and `copy_arg' parameters.
	(base_breakpoint_decode_location): Use struct event_location instead of
	address string.
	(bkpt_re_set): Use locations instead of address strings.
	Use event_location_empty_p to check for unset location.
	(bkpt_print_recreate): Use event_location_to_string instead of
	an address string.
	(bkpt_create_sals_from_location): Use struct event_location instead of
	address string.
	(bkpt_probe_create_sals_from_location): Likewise.
	(bkpt_probe_decode_location): Use struct event_location instead of
	address string.
	(tracepoint_print_recreate): Use event_location_to_string to
	recreate the tracepoint.
	(tracepoint_create_sals_from_location): Use struct event_location
	instead of address string.
	(tracepoint_decode_location): Likewise.
	(tracepoint_probe_decode_location): Likewise.
	(dprintf_print_recreate): Use event_location_to_string to recreate
	the dprintf.
	(strace_marker_create_sals_from_location): Use struct event_location
	instead of address string.
	(strace_marker_create_breakpoints_sal): Likewise.
	(strace_marker_decode_location): Likewise.
	(update_static_tracepoint): Likewise.
	(location_to_sals): Likewise.
	For non-linespec locations, pass `extra_string' to
	find_condition_and_thread.
	(breakpoint_re_set_default): Use locations instead of address
	strings.
	(create_sals_from_location_default): Use locations instead of
	address strings.
	(decode_location_default): Use locations instead of address strings.
	(trace_command): Use locations instead of address strings.
	(ftrace_command): Likewise.
	(strace_command): Likewise.
	(create_tracepoint_from_upload): Likewise.
	* breakpoint.h (struct breakpoint_ops) <create_sals_from_location>:
	Use struct event_location instead of address string.
	Update all uses.
	<decode_location>: Likewise.
	(struct breakpoint) <addr_string>: Change to struct event_location
	and rename `location'.
	<addr_string_range_end>: Change to struct event_location and rename
	`location_range_end'.
	* cli/cli-cmds.c: Include location.h.
	(edit_command): Use locations instead of address strings.
	(list_command): Likewise.
	* elfread.c: Include location.h.
	(elf_gnu_ifunc_resolver_return_stop): Use event_location_to_string.
	* linespec.c: Include location.h.
	(canonicalize_linespec): Save a linespec location into `canonical'.
	Save a canonical linespec into `canonical'.
	(linespec_parser_new): Initialize `parser'.
	(event_location_to_sals): New function.
	(decode_line_full): Change `argptr' to a struct event_location and
	rename it `location'.
	Use locations instead of address strings.
	Call event_location_to_sals instead of parse_linespec.
	(decode_line_1): Likewise.
	(decode_line_with_current_source): Use locations instead of
	address strings.
	(decode_line_with_last_displayed): Likewise.
	(decode_objc): Likewise.
	(destroy_linespec_result): Delete the linespec result's location
	instead of freeing the address string.
	* linespec.h (struct linespec_result) <addr_string>: Change to
	struct event_location and rename to ...
	<location>: ... this.
	(decode_line_1): Change `argptr' to struct event_location.
	All callers updated.
	(decode_line_full): Likewise.
	* mi/mi-cmd-break.c: Include language.h, location.h, and linespec.h.
	(mi_cmd_break_insert_1): Use locations instead of address strings.
	* probe.c: Include location.h.
	(parse_probes): Change `argptr' to struct event_location.
	Make local variable `arg_start' const.
	Use event locations instead of address strings.
	* probe.h (parse_probes): Change `argptr' to struct event_location.
	* python/py-breakpoint.c: Include location.h.
	(bppy_get_location): Constify local variable `str'.
	Use event_location_to_string.
	(bppy_init): Use locations instead of address strings.
	* python/py-finishbreakpoint.c: Include location.h.
	(bpfinishpy_init): Remove local variable `addr_str'.
	Use locations instead of address strings.
	* python/python.c: Include location.h.
	(gdbpy_decode_line): Use locations instead of address strings.
	* remote.c: Include location.h.
	(remote_download_tracepoint): Use locations instead of address
	strings.
	* spu-tdep.c: Include location.h.
	(spu_catch_start): Remove local variable `buf'.
	Use locations instead of address strings.
	* tracepoint.c: Include location.h.
	(scope_info): Use locations instead of address strings.
	(encode_source_string): Constify parameter `src'.
	* tracepoint.h (encode_source_string): Likewise.
---
 gdb/ax-gdb.c                     |   11 +
 gdb/break-catch-throw.c          |   22 +
 gdb/breakpoint.c                 |  656 +++++++++++++++++++++++---------------
 gdb/breakpoint.h                 |   22 +
 gdb/cli/cli-cmds.c               |   56 +++
 gdb/elfread.c                    |    4 
 gdb/linespec.c                   |  107 +++++-
 gdb/linespec.h                   |   12 -
 gdb/mi/mi-cmd-break.c            |    9 -
 gdb/probe.c                      |   21 +
 gdb/probe.h                      |    6 
 gdb/python/py-breakpoint.c       |   12 -
 gdb/python/py-finishbreakpoint.c |   13 +
 gdb/python/python.c              |   23 +
 gdb/remote.c                     |   10 -
 gdb/spu-tdep.c                   |   11 -
 gdb/tracepoint.c                 |   18 +
 gdb/tracepoint.h                 |    2 
 18 files changed, 673 insertions(+), 342 deletions(-)

diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index b77716d..0579c94 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -41,6 +41,7 @@
 #include "arch-utils.h"
 #include "cli/cli-utils.h"
 #include "linespec.h"
+#include "location.h"
 #include "objfiles.h"
 
 #include "valprint.h"
@@ -2643,13 +2644,19 @@ agent_command_1 (char *exp, int eval)
       int ix;
       struct linespec_sals *iter;
       struct cleanup *old_chain;
+      struct event_location *location, *copy_location;
 
       exp = skip_spaces (exp);
       init_linespec_result (&canonical);
-      decode_line_full (&exp, DECODE_LINE_FUNFIRSTLINE,
+      location = new_linespec_location (exp);
+      old_chain = make_cleanup_delete_event_location (location);
+      copy_location = copy_event_location_tmp (location);
+      make_cleanup (xfree, copy_location);
+      decode_line_full (copy_location, DECODE_LINE_FUNFIRSTLINE,
 			(struct symtab *) NULL, 0, &canonical,
 			NULL, NULL);
-      old_chain = make_cleanup_destroy_linespec_result (&canonical);
+      make_cleanup_destroy_linespec_result (&canonical);
+      event_location_advance_input_ptr (&exp, copy_location);
       exp = skip_spaces (exp);
       if (exp[0] == ',')
         {
diff --git a/gdb/break-catch-throw.c b/gdb/break-catch-throw.c
index d0dacae..098ab1a 100644
--- a/gdb/break-catch-throw.c
+++ b/gdb/break-catch-throw.c
@@ -36,6 +36,7 @@
 #include "cp-abi.h"
 #include "gdb_regex.h"
 #include "cp-support.h"
+#include "location.h"
 
 /* Enums for exception-handling support.  */
 enum exception_event_kind
@@ -207,27 +208,36 @@ re_set_exception_catchpoint (struct breakpoint *self)
   volatile struct gdb_exception e;
   struct cleanup *cleanup;
   enum exception_event_kind kind = classify_exception_breakpoint (self);
+  struct event_location *location, *copy_location;
 
   /* We first try to use the probe interface.  */
+  location
+    = new_linespec_location (ASTRDUP (exception_functions[kind].probe));
+  cleanup = make_cleanup_delete_event_location (location);
+  copy_location = copy_event_location_tmp (location);
+  make_cleanup (xfree, copy_location);
   TRY_CATCH (e, RETURN_MASK_ERROR)
     {
-      char *spec = ASTRDUP (exception_functions[kind].probe);
-
-      sals = parse_probes (&spec, NULL);
+      sals = parse_probes (copy_location, NULL);
     }
+  do_cleanups (cleanup);
 
   if (e.reason < 0)
     {
       volatile struct gdb_exception ex;
+      char *func = ASTRDUP (exception_functions[kind].function);
 
       /* Using the probe interface failed.  Let's fallback to the normal
 	 catchpoint mode.  */
+      location = new_linespec_location (func);
+      cleanup = make_cleanup_delete_event_location (location);
+      copy_location = copy_event_location_tmp (location);
+      make_cleanup (xfree, copy_location);
       TRY_CATCH (ex, RETURN_MASK_ERROR)
 	{
-	  char *spec = ASTRDUP (exception_functions[kind].function);
-
-	  self->ops->decode_location (self, &spec, &sals);
+	  self->ops->decode_location (self, copy_location, &sals);
 	}
+      do_cleanups (cleanup);
 
       /* NOT_FOUND_ERROR just means the breakpoint will be pending, so
 	 let it through.  */
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 3f089de..00046b0 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -68,6 +68,7 @@
 #include "skip.h"
 #include "ax-gdb.h"
 #include "dummy-frame.h"
+#include "location.h"
 
 #include "format.h"
 
@@ -111,10 +112,10 @@ static int breakpoint_re_set_one (void *);
 
 static void breakpoint_re_set_default (struct breakpoint *);
 
-static void create_sals_from_location_default (char **,
-					       struct linespec_result *,
-					       enum bptype, char *,
-					       char **);
+static void
+  create_sals_from_location_default (struct event_location *location,
+				     struct linespec_result *canonical,
+				     enum bptype type_wanted);
 
 static void create_breakpoints_sal_default (struct gdbarch *,
 					    struct linespec_result *,
@@ -124,8 +125,9 @@ static void create_breakpoints_sal_default (struct gdbarch *,
 					    const struct breakpoint_ops *,
 					    int, int, int, unsigned);
 
-static void decode_location_default (struct breakpoint *, char **,
-				     struct symtabs_and_lines *);
+static void decode_location_default (struct breakpoint *b,
+				     struct event_location *location,
+				     struct symtabs_and_lines *sals);
 
 static void clear_command (char *, int);
 
@@ -3303,7 +3305,7 @@ create_overlay_event_breakpoint (void)
       b = create_internal_breakpoint (get_objfile_arch (objfile), addr,
                                       bp_overlay_event,
 				      &internal_breakpoint_ops);
-      b->addr_string = xstrdup (func_name);
+      b->location = new_linespec_location (func_name);
 
       if (overlay_debugging == ovly_auto)
         {
@@ -3384,7 +3386,8 @@ create_longjmp_master_breakpoint (void)
 								 objfile),
 					      bp_longjmp_master,
 					      &internal_breakpoint_ops);
-	      b->addr_string = xstrdup ("-probe-stap libc:longjmp");
+	      b->location
+		= new_linespec_location ("-probe-stap libc:longjmp");
 	      b->enable_state = bp_disabled;
 	    }
 
@@ -3421,7 +3424,7 @@ create_longjmp_master_breakpoint (void)
 	  addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->longjmp_msym[i]);
 	  b = create_internal_breakpoint (gdbarch, addr, bp_longjmp_master,
 					  &internal_breakpoint_ops);
-	  b->addr_string = xstrdup (func_name);
+	  b->location = new_linespec_location (func_name);
 	  b->enable_state = bp_disabled;
 	}
     }
@@ -3477,7 +3480,7 @@ create_std_terminate_master_breakpoint (void)
       b = create_internal_breakpoint (get_objfile_arch (objfile), addr,
                                       bp_std_terminate_master,
 				      &internal_breakpoint_ops);
-      b->addr_string = xstrdup (func_name);
+      b->location = new_linespec_location (func_name);
       b->enable_state = bp_disabled;
     }
   }
@@ -3547,7 +3550,8 @@ create_exception_master_breakpoint (void)
 								 objfile),
 					      bp_exception_master,
 					      &internal_breakpoint_ops);
-	      b->addr_string = xstrdup ("-probe-stap libgcc:unwind");
+	      b->location
+		= new_linespec_location ("-probe-stap libgcc:unwind");
 	      b->enable_state = bp_disabled;
 	    }
 
@@ -3580,7 +3584,7 @@ create_exception_master_breakpoint (void)
 						 &current_target);
       b = create_internal_breakpoint (gdbarch, addr, bp_exception_master,
 				      &internal_breakpoint_ops);
-      b->addr_string = xstrdup (func_name);
+      b->location = new_linespec_location (func_name);
       b->enable_state = bp_disabled;
     }
 
@@ -3694,7 +3698,7 @@ update_breakpoints_after_exec (void)
     /* Without a symbolic address, we have little hope of the
        pre-exec() address meaning the same thing in the post-exec()
        a.out.  */
-    if (b->addr_string == NULL)
+    if (event_location_empty_p (b->location))
       {
 	delete_breakpoint (b);
 	continue;
@@ -5919,7 +5923,8 @@ print_breakpoint_location (struct breakpoint *b,
     set_current_program_space (loc->pspace);
 
   if (b->display_canonical)
-    ui_out_field_string (uiout, "what", b->addr_string);
+    ui_out_field_string (uiout, "what",
+			 event_location_to_string (b->location));
   else if (loc && loc->symtab)
     {
       struct symbol *sym 
@@ -5955,7 +5960,8 @@ print_breakpoint_location (struct breakpoint *b,
       do_cleanups (stb_chain);
     }
   else
-    ui_out_field_string (uiout, "pending", b->addr_string);
+    ui_out_field_string (uiout, "pending",
+			 event_location_to_string (b->location));
 
   if (loc && is_breakpoint (b)
       && breakpoint_condition_evaluation_mode () == condition_evaluation_target
@@ -6422,8 +6428,10 @@ print_one_breakpoint_location (struct breakpoint *b,
 
 	  ui_out_field_string (uiout, "original-location", w->exp_string);
 	}
-      else if (b->addr_string)
-	ui_out_field_string (uiout, "original-location", b->addr_string);
+      else if (b->location != NULL
+	       && event_location_to_string (b->location) != NULL)
+	ui_out_field_string (uiout, "original-location",
+			     event_location_to_string (b->location));
     }
 }
 
@@ -7184,6 +7192,7 @@ init_raw_breakpoint_without_location (struct breakpoint *b,
   b->condition_not_parsed = 0;
   b->py_bp_object = NULL;
   b->related_breakpoint = b;
+  b->location = NULL;
 }
 
 /* Helper to set_raw_breakpoint below.  Creates a breakpoint
@@ -7522,15 +7531,17 @@ delete_std_terminate_breakpoint (void)
 struct breakpoint *
 create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
 {
+  char *tmp;
   struct breakpoint *b;
 
   b = create_internal_breakpoint (gdbarch, address, bp_thread_event,
 				  &internal_breakpoint_ops);
 
   b->enable_state = bp_enabled;
-  /* addr_string has to be used or breakpoint_re_set will delete me.  */
-  b->addr_string
-    = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
+  /* location has to be used or breakpoint_re_set will delete me.  */
+  tmp = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
+  b->location = new_linespec_location (tmp);
+  xfree (tmp);
 
   update_global_location_list_nothrow (1);
 
@@ -9269,13 +9280,14 @@ update_dprintf_commands (char *args, int from_tty,
     }
 }
 
-/* Create a breakpoint with SAL as location.  Use ADDR_STRING
-   as textual description of the location, and COND_STRING
+/* Create a breakpoint with SAL as location.  Use LOCATION
+   as a description of the location, and COND_STRING
    as condition expression.  */
 
 static void
 init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch,
-		     struct symtabs_and_lines sals, char *addr_string,
+		     struct symtabs_and_lines sals,
+		     struct event_location *location,
 		     char *filter, char *cond_string,
 		     char *extra_string,
 		     enum bptype type, enum bpdisp disposition,
@@ -9324,7 +9336,10 @@ init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch,
 	  b->task = task;
 
 	  b->cond_string = cond_string;
-	  b->extra_string = extra_string;
+	  if (extra_string != NULL && *extra_string != '\0')
+	    b->extra_string = extra_string;
+	  else
+	    b->extra_string = NULL;
 	  b->ignore_count = ignore_count;
 	  b->enable_state = enabled ? bp_enabled : bp_disabled;
 	  b->disposition = disposition;
@@ -9341,13 +9356,13 @@ init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch,
 		{
 		  /* We already know the marker exists, otherwise, we
 		     wouldn't see a sal for it.  */
-		  char *p = &addr_string[3];
-		  char *endp;
+		  const char *p = &event_location_to_string (b->location)[3];
+		  const char *endp;
 		  char *marker_str;
 
-		  p = skip_spaces (p);
+		  p = skip_spaces_const (p);
 
-		  endp = skip_to_space (p);
+		  endp = skip_to_space_const (p);
 
 		  marker_str = savestring (p, endp - p);
 		  t->static_trace_marker_id = marker_str;
@@ -9406,19 +9421,23 @@ init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch,
     }
 
   b->display_canonical = display_canonical;
-  if (addr_string)
-    b->addr_string = addr_string;
+  if (location != NULL)
+    b->location = location;
   else
-    /* addr_string has to be used or breakpoint_re_set will delete
-       me.  */
-    b->addr_string
-      = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
+    {
+      char *tmp = xstrprintf ("*%s",
+			      paddress (b->loc->gdbarch, b->loc->address));
+
+      b->location = new_linespec_location (tmp);
+      xfree (tmp);
+   }
   b->filter = filter;
 }
 
 static void
 create_breakpoint_sal (struct gdbarch *gdbarch,
-		       struct symtabs_and_lines sals, char *addr_string,
+		       struct symtabs_and_lines sals,
+		       struct event_location *location,
 		       char *filter, char *cond_string,
 		       char *extra_string,
 		       enum bptype type, enum bpdisp disposition,
@@ -9443,7 +9462,7 @@ create_breakpoint_sal (struct gdbarch *gdbarch,
   old_chain = make_cleanup (xfree, b);
 
   init_breakpoint_sal (b, gdbarch,
-		       sals, addr_string,
+		       sals, location,
 		       filter, cond_string, extra_string,
 		       type, disposition,
 		       thread, task, ignore_count,
@@ -9487,17 +9506,17 @@ create_breakpoints_sal (struct gdbarch *gdbarch,
 
   for (i = 0; VEC_iterate (linespec_sals, canonical->sals, i, lsal); ++i)
     {
-      /* Note that 'addr_string' can be NULL in the case of a plain
+      /* Note that 'location' can be NULL in the case of a plain
 	 'break', without arguments.  */
-      char *addr_string = (canonical->addr_string
-			   ? xstrdup (canonical->addr_string)
-			   : NULL);
+      struct event_location *location
+	= (canonical->location != NULL
+	   ? copy_event_location (canonical->location) : NULL);
       char *filter_string = lsal->canonical ? xstrdup (lsal->canonical) : NULL;
-      struct cleanup *inner = make_cleanup (xfree, addr_string);
+      struct cleanup *inner = make_cleanup_delete_event_location (location);
 
       make_cleanup (xfree, filter_string);
       create_breakpoint_sal (gdbarch, lsal->sals,
-			     addr_string,
+			     location,
 			     filter_string,
 			     cond_string, extra_string,
 			     type, disposition,
@@ -9508,84 +9527,98 @@ create_breakpoints_sal (struct gdbarch *gdbarch,
     }
 }
 
-/* Parse ADDRESS which is assumed to be a SAL specification possibly
+/* Parse LOCATION which is assumed to be a SAL specification possibly
    followed by conditionals.  On return, SALS contains an array of SAL
-   addresses found.  ADDR_STRING contains a vector of (canonical)
-   address strings.  ADDRESS points to the end of the SAL.
+   addresses found.  LOCATION points to the end of the SAL (for
+   linespec locations).
 
    The array and the line spec strings are allocated on the heap, it is
    the caller's responsibility to free them.  */
 
 static void
-parse_breakpoint_sals (char **address,
+parse_breakpoint_sals (struct event_location *location,
 		       struct linespec_result *canonical)
 {
-  /* If no arg given, or if first arg is 'if ', use the default
-     breakpoint.  */
-  if ((*address) == NULL
-      || (strncmp ((*address), "if", 2) == 0 && isspace ((*address)[2])))
+  struct symtab_and_line cursal;
+
+  if (event_location_type (location) == LINESPEC_LOCATION)
     {
-      /* The last displayed codepoint, if it's valid, is our default breakpoint
-         address.  */
-      if (last_displayed_sal_is_valid ())
+      const char *address = get_linespec_location (location);
+
+      if (address == NULL
+	  || (strncmp (address, "if", 2) == 0 && isspace (address[2])))
 	{
-	  struct linespec_sals lsal;
-	  struct symtab_and_line sal;
-	  CORE_ADDR pc;
-
-	  init_sal (&sal);		/* Initialize to zeroes.  */
-	  lsal.sals.sals = (struct symtab_and_line *)
-	    xmalloc (sizeof (struct symtab_and_line));
-
-	  /* Set sal's pspace, pc, symtab, and line to the values
-	     corresponding to the last call to print_frame_info.
-	     Be sure to reinitialize LINE with NOTCURRENT == 0
-	     as the breakpoint line number is inappropriate otherwise.
-	     find_pc_line would adjust PC, re-set it back.  */
-	  get_last_displayed_sal (&sal);
-	  pc = sal.pc;
-	  sal = find_pc_line (pc, 0);
-
-	  /* "break" without arguments is equivalent to "break *PC"
-	     where PC is the last displayed codepoint's address.  So
-	     make sure to set sal.explicit_pc to prevent GDB from
-	     trying to expand the list of sals to include all other
-	     instances with the same symtab and line.  */
-	  sal.pc = pc;
-	  sal.explicit_pc = 1;
-
-	  lsal.sals.sals[0] = sal;
-	  lsal.sals.nelts = 1;
-	  lsal.canonical = NULL;
-
-	  VEC_safe_push (linespec_sals, canonical->sals, &lsal);
+	  /* The last displayed codepoint, if it's valid, is our default
+	     breakpoint address.  */
+	  if (last_displayed_sal_is_valid ())
+	    {
+	      struct linespec_sals lsal;
+	      struct symtab_and_line sal;
+	      CORE_ADDR pc;
+
+	      init_sal (&sal);		/* Initialize to zeroes.  */
+	      lsal.sals.sals = (struct symtab_and_line *)
+		xmalloc (sizeof (struct symtab_and_line));
+
+	      /* Set sal's pspace, pc, symtab, and line to the values
+		 corresponding to the last call to print_frame_info.
+		 Be sure to reinitialize LINE with NOTCURRENT == 0
+		 as the breakpoint line number is inappropriate otherwise.
+		 find_pc_line would adjust PC, re-set it back.  */
+	      get_last_displayed_sal (&sal);
+	      pc = sal.pc;
+	      sal = find_pc_line (pc, 0);
+
+	      /* "break" without arguments is equivalent to "break *PC"
+		 where PC is the last displayed codepoint's address.  So
+		 make sure to set sal.explicit_pc to prevent GDB from
+		 trying to expand the list of sals to include all other
+		 instances with the same symtab and line.  */
+	      sal.pc = pc;
+	      sal.explicit_pc = 1;
+
+	      lsal.sals.sals[0] = sal;
+	      lsal.sals.nelts = 1;
+	      lsal.canonical = NULL;
+
+	      VEC_safe_push (linespec_sals, canonical->sals, &lsal);
+	      return;
+	    }
+	  else
+	    error (_("No default breakpoint address now."));
 	}
-      else
-	error (_("No default breakpoint address now."));
     }
-  else
+
+  /* Force almost all breakpoints to be in terms of the
+     current_source_symtab (which is decode_line_1's default).
+     This should produce the results we want almost all of the
+     time while leaving default_breakpoint_* alone.
+
+     ObjC: However, don't match an Objective-C method name which
+     may have a '+' or '-' succeeded by a '['.  */
+  cursal = get_current_source_symtab_and_line ();
+  if (last_displayed_sal_is_valid ())
     {
-      struct symtab_and_line cursal = get_current_source_symtab_and_line ();
+      const char *address = NULL;
 
-      /* Force almost all breakpoints to be in terms of the
-         current_source_symtab (which is decode_line_1's default).
-         This should produce the results we want almost all of the
-         time while leaving default_breakpoint_* alone.
+      if (event_location_type (location) == LINESPEC_LOCATION)
+	address = get_linespec_location (location);
 
-	 ObjC: However, don't match an Objective-C method name which
-	 may have a '+' or '-' succeeded by a '['.  */
-      if (last_displayed_sal_is_valid ()
-	  && (!cursal.symtab
-	      || ((strchr ("+-", (*address)[0]) != NULL)
-		  && ((*address)[1] != '['))))
-	decode_line_full (address, DECODE_LINE_FUNFIRSTLINE,
-			  get_last_displayed_symtab (),
-			  get_last_displayed_line (),
-			  canonical, NULL, NULL);
-      else
-	decode_line_full (address, DECODE_LINE_FUNFIRSTLINE,
-			  cursal.symtab, cursal.line, canonical, NULL, NULL);
+      if (!cursal.symtab
+	  || (address != NULL
+	      && strchr ("+-", address[0]) != NULL
+	      && address[1] != '['))
+	{
+	  decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
+			    get_last_displayed_symtab (),
+			    get_last_displayed_line (),
+			    canonical, NULL, NULL);
+	  return;
+	}
     }
+
+  decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
+		    cursal.symtab, cursal.line, canonical, NULL, NULL);
 }
 
 
@@ -9775,20 +9808,30 @@ decode_static_tracepoint_spec (char **arg_p)
   return sals;
 }
 
-/* Set a breakpoint.  This function is shared between CLI and MI
-   functions for setting a breakpoint.  This function has two major
-   modes of operations, selected by the PARSE_ARG parameter.  If
-   non-zero, the function will parse ARG, extracting location,
-   condition, thread and extra string.  Otherwise, ARG is just the
-   breakpoint's location, with condition, thread, and extra string
-   specified by the COND_STRING, THREAD and EXTRA_STRING parameters.
+/* Set a breakpoint.  This function is shared between CLI and MI functions
+   for setting a breakpoint at LOCATION.
+
+   This function has two major modes of operations, selected by the PARSE_ARG
+   parameter.
+
+   If PARSE_ARG is zero, LOCATION is just the breakpoint's location,
+   with condition, thread, and extra string specified by the COND_STRING,
+   THREAD, and EXTRA_STRING parameters.
+
+   If PARSE_ARG is non-zero and LOCATION is a linespec location,
+   this function will attempt to extract the location, condition, thread,
+   and extra string from the linespec stored in LOCATION.
+   For non-linespec locations EXTRA_STRING is parsed for condition, thread,
+   and extra string.
+
    If INTERNAL is non-zero, the breakpoint number will be allocated
-   from the internal breakpoint count.  Returns true if any breakpoint
-   was created; false otherwise.  */
+   from the internal breakpoint count.
+
+   Returns true if any breakpoint was created; false otherwise.  */
 
 int
 create_breakpoint (struct gdbarch *gdbarch,
-		   char *arg, char *cond_string,
+		   const struct event_location *location, char *cond_string,
 		   int thread, char *extra_string,
 		   int parse_arg,
 		   int tempflag, enum bptype type_wanted,
@@ -9799,23 +9842,28 @@ create_breakpoint (struct gdbarch *gdbarch,
 		   unsigned flags)
 {
   volatile struct gdb_exception e;
-  char *copy_arg = NULL;
-  char *addr_start = arg;
   struct linespec_result canonical;
   struct cleanup *old_chain;
   struct cleanup *bkpt_chain = NULL;
   int pending = 0;
   int task = 0;
   int prev_bkpt_count = breakpoint_count;
+  struct event_location *copy_location;
 
   gdb_assert (ops != NULL);
 
+  /* If extra_string isn't useful, set it to NULL.  */
+  if (extra_string != NULL && *extra_string == '\0')
+    extra_string = NULL;
+
   init_linespec_result (&canonical);
 
+  copy_location = copy_event_location_tmp (location);
+  old_chain = make_cleanup (xfree, copy_location);
+
   TRY_CATCH (e, RETURN_MASK_ALL)
     {
-      ops->create_sals_from_location (&arg, &canonical, type_wanted,
-				      addr_start, &copy_arg);
+      ops->create_sals_from_location (copy_location, &canonical, type_wanted);
     }
 
   /* If caller is interested in rc value from parse, set value.  */
@@ -9852,8 +9900,7 @@ create_breakpoint (struct gdbarch *gdbarch,
 	  {
 	    struct linespec_sals lsal;
 
-	    copy_arg = xstrdup (addr_start);
-	    lsal.canonical = xstrdup (copy_arg);
+	    lsal.canonical = event_location_to_string_const (location);
 	    lsal.sals.nelts = 1;
 	    lsal.sals.sals = XNEW (struct symtab_and_line);
 	    init_sal (&lsal.sals.sals[0]);
@@ -9870,7 +9917,7 @@ create_breakpoint (struct gdbarch *gdbarch,
     }
 
   /* Create a chain of things that always need to be cleaned up.  */
-  old_chain = make_cleanup_destroy_linespec_result (&canonical);
+  make_cleanup_destroy_linespec_result (&canonical);
 
   /* ----------------------------- SNIP -----------------------------
      Anything added to the cleanup chain beyond this point is assumed
@@ -9904,14 +9951,23 @@ create_breakpoint (struct gdbarch *gdbarch,
      breakpoint.  */
   if (!pending)
     {
+      char *arg = NULL;
+
+      event_location_advance_input_ptr (&arg, copy_location);
+
       if (parse_arg)
         {
 	  char *rest;
 	  struct linespec_sals *lsal;
 
 	  lsal = VEC_index (linespec_sals, canonical.sals, 0);
+	  if (extra_string != NULL)
+	  {
+	    arg = extra_string;
+	    extra_string = NULL;
+	  }
 
-	  /* Here we only parse 'arg' to separate condition
+	  /* Here we only parse the location to separate condition
 	     from thread number, so parsing in context of first
 	     sal is OK.  When setting the breakpoint we'll
 	     re-parse it in context of each sal.  */
@@ -9927,8 +9983,8 @@ create_breakpoint (struct gdbarch *gdbarch,
         }
       else
         {
-	  if (*arg != '\0')
-	    error (_("Garbage '%s' at end of location"), arg);
+	  if (arg != NULL && *arg != '\0')
+		error (_("Garbage '%s' at end of location"), arg);
 
 	  /* Create a private copy of condition string.  */
 	  if (cond_string)
@@ -9953,8 +10009,7 @@ create_breakpoint (struct gdbarch *gdbarch,
   else
     {
       struct breakpoint *b;
-
-      make_cleanup (xfree, copy_arg);
+      linespec_sals *lsal;
 
       if (is_tracepoint_type (type_wanted))
 	{
@@ -9967,8 +10022,9 @@ create_breakpoint (struct gdbarch *gdbarch,
 	b = XNEW (struct breakpoint);
 
       init_raw_breakpoint_without_location (b, gdbarch, type_wanted, ops);
-
-      b->addr_string = copy_arg;
+      b->location = copy_event_location (location);
+      lsal = VEC_index (linespec_sals, canonical.sals, 0);
+      set_event_location_string (b->location, lsal->canonical);
       if (parse_arg)
 	b->cond_string = NULL;
       else
@@ -9981,7 +10037,15 @@ create_breakpoint (struct gdbarch *gdbarch,
 	    }
 	  b->cond_string = cond_string;
 	}
-      b->extra_string = NULL;
+
+      /* Make a private copy of extra_string for the breakpoint.  */
+      if (extra_string != NULL)
+	{
+	  b->extra_string = xstrdup (extra_string);
+	  make_cleanup (xfree, b->extra_string);
+	}
+      else
+	b->extra_string = NULL;
       b->ignore_count = ignore_count;
       b->disposition = tempflag ? disp_del : disp_donttouch;
       b->condition_not_parsed = 1;
@@ -10028,16 +10092,21 @@ break_command_1 (char *arg, int flag, int from_tty)
 			     : bp_breakpoint);
   struct breakpoint_ops *ops;
   const char *arg_cp = arg;
+  struct event_location *location;
+  struct cleanup *cleanup;
+
+  location = string_to_event_location (&arg, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
 
   /* Matching breakpoints on probes.  */
-  if (arg && probe_linespec_to_ops (&arg_cp) != NULL)
+  if (arg_cp != NULL  && probe_linespec_to_ops (&arg_cp) != NULL)
     ops = &bkpt_probe_breakpoint_ops;
   else
     ops = &bkpt_breakpoint_ops;
 
   create_breakpoint (get_current_arch (),
-		     arg,
-		     NULL, 0, NULL, 1 /* parse arg */,
+		     location,
+		     NULL, 0, arg, 1 /* parse arg */,
 		     tempflag, type_wanted,
 		     0 /* Ignore count */,
 		     pending_break_support,
@@ -10046,6 +10115,7 @@ break_command_1 (char *arg, int flag, int from_tty)
 		     1 /* enabled */,
 		     0 /* internal */,
 		     0);
+  do_cleanups (cleanup);
 }
 
 /* Helper function for break_command_1 and disassemble_command.  */
@@ -10210,9 +10280,15 @@ stopat_command (char *arg, int from_tty)
 static void
 dprintf_command (char *arg, int from_tty)
 {
+  struct event_location *location;
+  struct cleanup *cleanup;
+
+  location = string_to_event_location (&arg, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
+
   create_breakpoint (get_current_arch (),
-		     arg,
-		     NULL, 0, NULL, 1 /* parse arg */,
+		     location,
+		     NULL, 0, arg, 1 /* parse arg */,
 		     0, bp_dprintf,
 		     0 /* Ignore count */,
 		     pending_break_support,
@@ -10221,6 +10297,7 @@ dprintf_command (char *arg, int from_tty)
 		     1 /* enabled */,
 		     0 /* internal */,
 		     0);
+  do_cleanups (cleanup);
 }
 
 static void
@@ -10365,8 +10442,9 @@ print_mention_ranged_breakpoint (struct breakpoint *b)
 static void
 print_recreate_ranged_breakpoint (struct breakpoint *b, struct ui_file *fp)
 {
-  fprintf_unfiltered (fp, "break-range %s, %s", b->addr_string,
-		      b->addr_string_range_end);
+  fprintf_unfiltered (fp, "break-range %s, %s",
+		      event_location_to_string (b->location),
+		      event_location_to_string (b->location_range_end));
   print_recreate_thread (b, fp);
 }
 
@@ -10417,6 +10495,7 @@ break_range_command (char *arg, int from_tty)
   struct symtab_and_line sal_start, sal_end;
   struct cleanup *cleanup_bkpt;
   struct linespec_sals *lsal_start, *lsal_end;
+  struct event_location *start_location, *end_location, *copy_location;
 
   /* We don't support software ranged breakpoints.  */
   if (target_ranged_break_num_registers () < 0)
@@ -10436,9 +10515,13 @@ break_range_command (char *arg, int from_tty)
   init_linespec_result (&canonical_start);
 
   arg_start = arg;
-  parse_breakpoint_sals (&arg, &canonical_start);
-
-  cleanup_bkpt = make_cleanup_destroy_linespec_result (&canonical_start);
+  start_location = string_to_event_location (&arg, current_language);
+  cleanup_bkpt = make_cleanup_delete_event_location (start_location);
+  copy_location = copy_event_location_tmp (start_location);
+  make_cleanup (xfree, copy_location);
+  parse_breakpoint_sals (copy_location, &canonical_start);
+  make_cleanup_destroy_linespec_result (&canonical_start);
+  event_location_advance_input_ptr (&arg, copy_location);
 
   if (arg[0] != ',')
     error (_("Too few arguments."));
@@ -10468,7 +10551,9 @@ break_range_command (char *arg, int from_tty)
      symtab and line as the default symtab and line for the end of the
      range.  This makes it possible to have ranges like "foo.c:27, +14",
      where +14 means 14 lines from the start location.  */
-  decode_line_full (&arg, DECODE_LINE_FUNFIRSTLINE,
+  end_location = string_to_event_location (&arg, current_language);
+  make_cleanup_delete_event_location (end_location);
+  decode_line_full (end_location, DECODE_LINE_FUNFIRSTLINE,
 		    sal_start.symtab, sal_start.line,
 		    &canonical_end, NULL, NULL);
 
@@ -10483,8 +10568,6 @@ break_range_command (char *arg, int from_tty)
     error (_("Cannot create a ranged breakpoint with multiple locations."));
 
   sal_end = lsal_end->sals.sals[0];
-  addr_string_end = savestring (arg_start, arg - arg_start);
-  make_cleanup (xfree, addr_string_end);
 
   end = find_breakpoint_range_end (sal_end);
   if (sal_start.pc > end)
@@ -10511,8 +10594,8 @@ break_range_command (char *arg, int from_tty)
   set_breakpoint_count (breakpoint_count + 1);
   b->number = breakpoint_count;
   b->disposition = disp_donttouch;
-  b->addr_string = xstrdup (addr_string_start);
-  b->addr_string_range_end = xstrdup (addr_string_end);
+  b->location = copy_event_location (start_location);
+  b->location_range_end = copy_event_location (end_location);
   b->loc->length = length;
 
   do_cleanups (cleanup_bkpt);
@@ -11632,26 +11715,34 @@ until_break_command (char *arg, int from_tty, int anywhere)
   struct frame_id caller_frame_id;
   struct breakpoint *breakpoint;
   struct breakpoint *breakpoint2 = NULL;
-  struct cleanup *old_chain;
+  struct cleanup *old_chain, *cleanup;
   int thread;
   struct thread_info *tp;
+  struct event_location *location, *copy_location;
 
   clear_proceed_status ();
 
   /* Set a breakpoint where the user wants it and at return from
      this function.  */
 
+  location = string_to_event_location (&arg, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
+  copy_location = copy_event_location_tmp (location);
+  make_cleanup (xfree, copy_location);
+
   if (last_displayed_sal_is_valid ())
-    sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE,
+    sals = decode_line_1 (copy_location, DECODE_LINE_FUNFIRSTLINE,
 			  get_last_displayed_symtab (),
 			  get_last_displayed_line ());
   else
-    sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE,
+    sals = decode_line_1 (copy_location, DECODE_LINE_FUNFIRSTLINE,
 			  (struct symtab *) NULL, 0);
 
   if (sals.nelts != 1)
     error (_("Couldn't get information on specified line."));
 
+  event_location_advance_input_ptr (&arg, copy_location);
+
   sal = sals.sals[0];
   xfree (sals.sals);	/* malloc'd, so freed.  */
 
@@ -11732,6 +11823,8 @@ until_break_command (char *arg, int from_tty, int anywhere)
     }
   else
     do_cleanups (old_chain);
+
+  do_cleanups (cleanup);
 }
 
 /* This function attempts to parse an optional "if <cond>" clause
@@ -11887,7 +11980,8 @@ init_ada_exception_breakpoint (struct breakpoint *b,
 
   b->enable_state = enabled ? bp_enabled : bp_disabled;
   b->disposition = tempflag ? disp_del : disp_donttouch;
-  b->addr_string = addr_string;
+  b->location = string_to_event_location (&addr_string,
+					  language_def (language_ada));
   b->language = language_ada;
 }
 
@@ -12853,7 +12947,8 @@ say_where (struct breakpoint *b)
      single string.  */
   if (b->loc == NULL)
     {
-      printf_filtered (_(" (%s) pending."), b->addr_string);
+      printf_filtered (_(" (%s) pending."),
+		       event_location_to_string (b->location));
     }
   else
     {
@@ -12875,7 +12970,8 @@ say_where (struct breakpoint *b)
 	    /* This is not ideal, but each location may have a
 	       different file name, and this at least reflects the
 	       real situation somewhat.  */
-	    printf_filtered (": %s.", b->addr_string);
+	    printf_filtered (": %s.",
+			     event_location_to_string (b->location));
 	}
 
       if (b->loc->next)
@@ -12917,9 +13013,9 @@ base_breakpoint_dtor (struct breakpoint *self)
   decref_counted_command_line (&self->commands);
   xfree (self->cond_string);
   xfree (self->extra_string);
-  xfree (self->addr_string);
   xfree (self->filter);
-  xfree (self->addr_string_range_end);
+  delete_event_location (self->location);
+  delete_event_location (self->location_range_end);
 }
 
 static struct bp_location *
@@ -13012,11 +13108,9 @@ base_breakpoint_print_recreate (struct breakpoint *b, struct ui_file *fp)
 }
 
 static void
-base_breakpoint_create_sals_from_location (char **arg,
+base_breakpoint_create_sals_from_location (struct event_location *location,
 					   struct linespec_result *canonical,
-					   enum bptype type_wanted,
-					   char *addr_start,
-					   char **copy_arg)
+					   enum bptype type_wanted)
 {
   internal_error_pure_virtual_called ();
 }
@@ -13038,7 +13132,8 @@ base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch,
 }
 
 static void
-base_breakpoint_decode_location (struct breakpoint *b, char **s,
+base_breakpoint_decode_location (struct breakpoint *b,
+				 struct event_location *location,
 				 struct symtabs_and_lines *sals)
 {
   internal_error_pure_virtual_called ();
@@ -13089,7 +13184,7 @@ static void
 bkpt_re_set (struct breakpoint *b)
 {
   /* FIXME: is this still reachable?  */
-  if (b->addr_string == NULL)
+  if (event_location_empty_p (b->location))
     {
       /* Anything without a string can't be re-set.  */
       delete_breakpoint (b);
@@ -13228,18 +13323,17 @@ bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp)
     internal_error (__FILE__, __LINE__,
 		    _("unhandled breakpoint type %d"), (int) tp->type);
 
-  fprintf_unfiltered (fp, " %s", tp->addr_string);
+  fprintf_unfiltered (fp, " %s",
+		      event_location_to_string (tp->location));
   print_recreate_thread (tp, fp);
 }
 
 static void
-bkpt_create_sals_from_location (char **arg,
-			       struct linespec_result *canonical,
-			       enum bptype type_wanted,
-			       char *addr_start, char **copy_arg)
+bkpt_create_sals_from_location (struct event_location *location,
+				struct linespec_result *canonical,
+				enum bptype type_wanted)
 {
-  create_sals_from_location_default (arg, canonical, type_wanted,
-				    addr_start, copy_arg);
+  create_sals_from_location_default (location, canonical, type_wanted);
 }
 
 static void
@@ -13264,10 +13358,11 @@ bkpt_create_breakpoints_sal (struct gdbarch *gdbarch,
 }
 
 static void
-bkpt_decode_location (struct breakpoint *b, char **s,
+bkpt_decode_location (struct breakpoint *b,
+		      struct event_location *location,
 		      struct symtabs_and_lines *sals)
 {
-  decode_location_default (b, s, sals);
+  decode_location_default (b, location, sals);
 }
 
 /* Virtual table for internal breakpoints.  */
@@ -13465,26 +13560,23 @@ bkpt_probe_remove_location (struct bp_location *bl)
 }
 
 static void
-bkpt_probe_create_sals_from_location (char **arg,
+bkpt_probe_create_sals_from_location (struct event_location *location,
 				      struct linespec_result *canonical,
-				      enum bptype type_wanted,
-				      char *addr_start, char **copy_arg)
+				      enum bptype type_wanted)
 {
   struct linespec_sals lsal;
 
-  lsal.sals = parse_probes (arg, canonical);
-
-  *copy_arg = xstrdup (canonical->addr_string);
-  lsal.canonical = xstrdup (*copy_arg);
-
+  lsal.sals = parse_probes (location, canonical);
+  lsal.canonical = xstrdup (event_location_to_string (canonical->location));
   VEC_safe_push (linespec_sals, canonical->sals, &lsal);
 }
 
 static void
-bkpt_probe_decode_location (struct breakpoint *b, char **s,
+bkpt_probe_decode_location (struct breakpoint *b,
+			    struct event_location *location,
 			    struct symtabs_and_lines *sals)
 {
-  *sals = parse_probes (s, NULL);
+  *sals = parse_probes (location, NULL);
   if (!sals->sals)
     error (_("probe not found"));
 }
@@ -13566,7 +13658,8 @@ tracepoint_print_recreate (struct breakpoint *self, struct ui_file *fp)
     internal_error (__FILE__, __LINE__,
 		    _("unhandled tracepoint type %d"), (int) self->type);
 
-  fprintf_unfiltered (fp, " %s", self->addr_string);
+  fprintf_unfiltered (fp, " %s",
+		      event_location_to_string (self->location));
   print_recreate_thread (self, fp);
 
   if (tp->pass_count)
@@ -13574,13 +13667,11 @@ tracepoint_print_recreate (struct breakpoint *self, struct ui_file *fp)
 }
 
 static void
-tracepoint_create_sals_from_location (char **arg,
-				     struct linespec_result *canonical,
-				     enum bptype type_wanted,
-				     char *addr_start, char **copy_arg)
+tracepoint_create_sals_from_location (struct event_location *location,
+				      struct linespec_result *canonical,
+				      enum bptype type_wanted)
 {
-  create_sals_from_location_default (arg, canonical, type_wanted,
-				    addr_start, copy_arg);
+  create_sals_from_location_default (location, canonical, type_wanted);
 }
 
 static void
@@ -13605,10 +13696,11 @@ tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch,
 }
 
 static void
-tracepoint_decode_location (struct breakpoint *b, char **s,
+tracepoint_decode_location (struct breakpoint *b,
+			    struct event_location *location,
 			    struct symtabs_and_lines *sals)
 {
-  decode_location_default (b, s, sals);
+  decode_location_default (b, location, sals);
 }
 
 struct breakpoint_ops tracepoint_breakpoint_ops;
@@ -13617,22 +13709,21 @@ struct breakpoint_ops tracepoint_breakpoint_ops;
    static probe.  */
 
 static void
-tracepoint_probe_create_sals_from_location (char **arg,
+tracepoint_probe_create_sals_from_location (struct event_location *location,
 					    struct linespec_result *canonical,
-					    enum bptype type_wanted,
-					    char *addr_start, char **copy_arg)
+					    enum bptype type_wanted)
 {
   /* We use the same method for breakpoint on probes.  */
-  bkpt_probe_create_sals_from_location (arg, canonical, type_wanted,
-					addr_start, copy_arg);
+  bkpt_probe_create_sals_from_location (location, canonical, type_wanted);
 }
 
 static void
-tracepoint_probe_decode_location (struct breakpoint *b, char **s,
+tracepoint_probe_decode_location (struct breakpoint *b,
+				  struct event_location *location,
 				  struct symtabs_and_lines *sals)
 {
   /* We use the same method for breakpoint on probes.  */
-  bkpt_probe_decode_location (b, s, sals);
+  bkpt_probe_decode_location (b, location, sals);
 }
 
 static struct breakpoint_ops tracepoint_probe_breakpoint_ops;
@@ -13671,7 +13762,8 @@ dprintf_re_set (struct breakpoint *b)
 static void
 dprintf_print_recreate (struct breakpoint *tp, struct ui_file *fp)
 {
-  fprintf_unfiltered (fp, "dprintf %s%s", tp->addr_string,
+  fprintf_unfiltered (fp, "dprintf %s%s",
+		      event_location_to_string (tp->location),
 		      tp->extra_string);
   print_recreate_thread (tp, fp);
 }
@@ -13718,19 +13810,26 @@ dprintf_after_condition_true (struct bpstats *bs)
    markers (`-m').  */
 
 static void
-strace_marker_create_sals_from_location (char **arg,
+strace_marker_create_sals_from_location (struct event_location *location,
 					 struct linespec_result *canonical,
-					 enum bptype type_wanted,
-					 char *addr_start, char **copy_arg)
+					 enum bptype type_wanted)
 {
   struct linespec_sals lsal;
+  char *arg_start, *arg;
+
+  arg = arg_start = get_linespec_location (location);
+  lsal.sals = decode_static_tracepoint_spec (&arg);
 
-  lsal.sals = decode_static_tracepoint_spec (arg);
+  if (canonical != NULL)
+    {
+      char *str = savestring (arg_start, arg - arg_start);
 
-  *copy_arg = savestring (addr_start, *arg - addr_start);
+      canonical->location = new_linespec_location (str);
+      xfree (str);
+    }
 
-  canonical->addr_string = xstrdup (*copy_arg);
-  lsal.canonical = xstrdup (*copy_arg);
+  advance_event_location_ptr (location, arg - arg_start);
+  lsal.canonical = xstrdup (event_location_to_string (canonical->location));
   VEC_safe_push (linespec_sals, canonical->sals, &lsal);
 }
 
@@ -13763,17 +13862,17 @@ strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch,
       struct symtabs_and_lines expanded;
       struct tracepoint *tp;
       struct cleanup *old_chain;
-      char *addr_string;
+      struct event_location *location;
 
       expanded.nelts = 1;
       expanded.sals = &lsal->sals.sals[i];
 
-      addr_string = xstrdup (canonical->addr_string);
-      old_chain = make_cleanup (xfree, addr_string);
+      location = copy_event_location (canonical->location);
+      old_chain = make_cleanup_delete_event_location (location);
 
       tp = XCNEW (struct tracepoint);
       init_breakpoint_sal (&tp->base, gdbarch, expanded,
-			   addr_string, NULL,
+			   location, NULL,
 			   cond_string, extra_string,
 			   type_wanted, disposition,
 			   thread, task, ignore_count, ops,
@@ -13794,12 +13893,14 @@ strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch,
 }
 
 static void
-strace_marker_decode_location (struct breakpoint *b, char **s,
+strace_marker_decode_location (struct breakpoint *b,
+			       struct event_location *location,
 			       struct symtabs_and_lines *sals)
 {
   struct tracepoint *tp = (struct tracepoint *) b;
+  char *s = get_linespec_location (location);
 
-  *sals = decode_static_tracepoint_spec (s);
+  *sals = decode_static_tracepoint_spec (&s);
   if (sals->nelts > tp->static_trace_marker_id_idx)
     {
       sals->sals[0] = sals->sals[tp->static_trace_marker_id_idx];
@@ -14131,6 +14232,7 @@ update_static_tracepoint (struct breakpoint *b, struct symtab_and_line sal)
 
       if (!VEC_empty(static_tracepoint_marker_p, markers))
 	{
+	  char *tmp;
 	  struct symtab_and_line sal2;
 	  struct symbol *sym;
 	  struct static_tracepoint_marker *tpmarker;
@@ -14175,10 +14277,12 @@ update_static_tracepoint (struct breakpoint *b, struct symtab_and_line sal)
 	  b->loc->line_number = sal2.line;
 	  b->loc->symtab = sym != NULL ? sal2.symtab : NULL;
 
-	  xfree (b->addr_string);
-	  b->addr_string = xstrprintf ("%s:%d",
-				   symtab_to_filename_for_display (sal2.symtab),
-				       b->loc->line_number);
+	  delete_event_location (b->location);
+	  tmp = xstrprintf ("%s:%d",
+			    symtab_to_filename_for_display (sal2.symtab),
+			    b->loc->line_number);
+	  b->location = new_linespec_location (tmp);
+	  xfree (tmp);
 
 	  /* Might be nice to check if function changed, and warn if
 	     so.  */
@@ -14339,22 +14443,24 @@ update_breakpoint_locations (struct breakpoint *b,
   update_global_location_list (1);
 }
 
-/* Find the SaL locations corresponding to the given ADDR_STRING.
+/* Find the SaL locations corresponding to the given LOCATION.
    On return, FOUND will be 1 if any SaL was found, zero otherwise.  */
 
 static struct symtabs_and_lines
-addr_string_to_sals (struct breakpoint *b, char *addr_string, int *found)
+location_to_sals (struct breakpoint *b, struct event_location *location,
+		  int *found)
 {
-  char *s;
   struct symtabs_and_lines sals = {0};
   volatile struct gdb_exception e;
+  const char *prev;
 
   gdb_assert (b->ops != NULL);
-  s = addr_string;
+
+  prev = event_location_to_string (location);
 
   TRY_CATCH (e, RETURN_MASK_ERROR)
     {
-      b->ops->decode_location (b, &s, &sals);
+      b->ops->decode_location (b, location, &sals);
     }
   if (e.reason < 0)
     {
@@ -14389,24 +14495,34 @@ addr_string_to_sals (struct breakpoint *b, char *addr_string, int *found)
   if (e.reason == 0 || e.error != NOT_FOUND_ERROR)
     {
       int i;
+      const char *s;
 
       for (i = 0; i < sals.nelts; ++i)
 	resolve_sal_pc (&sals.sals[i]);
-      if (b->condition_not_parsed && s && s[0])
+      if (b->condition_not_parsed)
 	{
-	  char *cond_string, *extra_string;
-	  int thread, task;
+	  if (event_location_type (location) == LINESPEC_LOCATION)
+	    s = get_linespec_location (location);
+	  else
+	    s = b->extra_string;
 
-	  find_condition_and_thread (s, sals.sals[0].pc,
-				     &cond_string, &thread, &task,
-				     &extra_string);
-	  if (cond_string)
-	    b->cond_string = cond_string;
-	  b->thread = thread;
-	  b->task = task;
-	  if (extra_string)
-	    b->extra_string = extra_string;
-	  b->condition_not_parsed = 0;
+	  if (s != NULL && *s != '\0')
+	    {
+	      char *cond_string, *extra_string;
+	      int thread, task;
+	      const char *orig = s;
+
+	      find_condition_and_thread (s, sals.sals[0].pc,
+					 &cond_string, &thread, &task,
+					 &extra_string);
+	      if (cond_string)
+		b->cond_string = cond_string;
+	      b->thread = thread;
+	      b->task = task;
+	      if (extra_string)
+		b->extra_string = extra_string;
+	      b->condition_not_parsed = 0;
+	    }
 	}
 
       if (b->type == bp_static_tracepoint && !strace_marker_p (b))
@@ -14431,17 +14547,25 @@ breakpoint_re_set_default (struct breakpoint *b)
   struct symtabs_and_lines sals, sals_end;
   struct symtabs_and_lines expanded = {0};
   struct symtabs_and_lines expanded_end = {0};
+  struct event_location *copy_location;
+  struct cleanup *cleanup;
 
-  sals = addr_string_to_sals (b, b->addr_string, &found);
+  copy_location = copy_event_location_tmp (b->location);
+  cleanup = make_cleanup (xfree, copy_location);
+  sals = location_to_sals (b, copy_location, &found);
+  do_cleanups (cleanup);
   if (found)
     {
       make_cleanup (xfree, sals.sals);
       expanded = sals;
     }
 
-  if (b->addr_string_range_end)
+  if (b->location_range_end != NULL)
     {
-      sals_end = addr_string_to_sals (b, b->addr_string_range_end, &found);
+      copy_location = copy_event_location_tmp (b->location_range_end);
+      cleanup = make_cleanup (xfree, copy_location);
+      sals_end = location_to_sals (b, copy_location, &found);
+      do_cleanups (cleanup);
       if (found)
 	{
 	  make_cleanup (xfree, sals_end.sals);
@@ -14456,12 +14580,11 @@ breakpoint_re_set_default (struct breakpoint *b)
    calls parse_breakpoint_sals.  Return 1 for success, zero for failure.  */
 
 static void
-create_sals_from_location_default (char **arg,
-				  struct linespec_result *canonical,
-				  enum bptype type_wanted,
-				  char *addr_start, char **copy_arg)
+create_sals_from_location_default (struct event_location *location,
+				   struct linespec_result *canonical,
+				   enum bptype type_wanted)
 {
-  parse_breakpoint_sals (arg, canonical);
+  parse_breakpoint_sals (location, canonical);
 }
 
 /* Call create_breakpoints_sal for the given arguments.  This is the default
@@ -14492,13 +14615,14 @@ create_breakpoints_sal_default (struct gdbarch *gdbarch,
    default function for the `decode_location' method of breakpoint_ops.  */
 
 static void
-decode_location_default (struct breakpoint *b, char **s,
+decode_location_default (struct breakpoint *b,
+			 struct event_location *location,
 			 struct symtabs_and_lines *sals)
 {
   struct linespec_result canonical;
 
   init_linespec_result (&canonical);
-  decode_line_full (s, DECODE_LINE_FUNFIRSTLINE,
+  decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
 		    (struct symtab *) NULL, 0,
 		    &canonical, multiple_symbols_all,
 		    b->filter);
@@ -15336,16 +15460,20 @@ static void
 trace_command (char *arg, int from_tty)
 {
   struct breakpoint_ops *ops;
+  struct event_location *location;
+  struct cleanup *back_to;
   const char *arg_cp = arg;
 
-  if (arg && probe_linespec_to_ops (&arg_cp))
+  location = string_to_event_location (&arg, current_language);
+  back_to = make_cleanup_delete_event_location (location);
+  if (arg_cp != NULL && probe_linespec_to_ops (&arg_cp) != NULL)
     ops = &tracepoint_probe_breakpoint_ops;
   else
     ops = &tracepoint_breakpoint_ops;
 
   create_breakpoint (get_current_arch (),
-		     arg,
-		     NULL, 0, NULL, 1 /* parse arg */,
+		     location,
+		     NULL, 0, arg, 1 /* parse arg */,
 		     0 /* tempflag */,
 		     bp_tracepoint /* type_wanted */,
 		     0 /* Ignore count */,
@@ -15354,14 +15482,20 @@ trace_command (char *arg, int from_tty)
 		     from_tty,
 		     1 /* enabled */,
 		     0 /* internal */, 0);
+  do_cleanups (back_to);
 }
 
 static void
 ftrace_command (char *arg, int from_tty)
 {
+  struct event_location *location;
+  struct cleanup *back_to;
+
+  location = string_to_event_location (&arg, current_language);
+  back_to = make_cleanup_delete_event_location (location);
   create_breakpoint (get_current_arch (),
-		     arg,
-		     NULL, 0, NULL, 1 /* parse arg */,
+		     location,
+		     NULL, 0, arg, 1 /* parse arg */,
 		     0 /* tempflag */,
 		     bp_fast_tracepoint /* type_wanted */,
 		     0 /* Ignore count */,
@@ -15370,6 +15504,7 @@ ftrace_command (char *arg, int from_tty)
 		     from_tty,
 		     1 /* enabled */,
 		     0 /* internal */, 0);
+  do_cleanups (back_to);
 }
 
 /* strace command implementation.  Creates a static tracepoint.  */
@@ -15378,17 +15513,26 @@ static void
 strace_command (char *arg, int from_tty)
 {
   struct breakpoint_ops *ops;
+  struct event_location *location;
+  struct cleanup *back_to;
 
   /* Decide if we are dealing with a static tracepoint marker (`-m'),
      or with a normal static tracepoint.  */
   if (arg && strncmp (arg, "-m", 2) == 0 && isspace (arg[2]))
-    ops = &strace_marker_breakpoint_ops;
+    {
+      ops = &strace_marker_breakpoint_ops;
+      location = new_linespec_location (arg);
+    }
   else
-    ops = &tracepoint_breakpoint_ops;
+    {
+      ops = &tracepoint_breakpoint_ops;
+      location = string_to_event_location (&arg, current_language);
+    }
 
+  back_to = make_cleanup_delete_event_location (location);
   create_breakpoint (get_current_arch (),
-		     arg,
-		     NULL, 0, NULL, 1 /* parse arg */,
+		     location,
+		     NULL, 0, arg, 1 /* parse arg */,
 		     0 /* tempflag */,
 		     bp_static_tracepoint /* type_wanted */,
 		     0 /* Ignore count */,
@@ -15397,6 +15541,7 @@ strace_command (char *arg, int from_tty)
 		     from_tty,
 		     1 /* enabled */,
 		     0 /* internal */, 0);
+  do_cleanups (back_to);
 }
 
 /* Set up a fake reader function that gets command lines from a linked
@@ -15428,6 +15573,8 @@ create_tracepoint_from_upload (struct uploaded_tp *utp)
 {
   char *addr_str, small_buf[100];
   struct tracepoint *tp;
+  struct event_location *location;
+  struct cleanup *cleanup;
 
   if (utp->at_string)
     addr_str = utp->at_string;
@@ -15450,9 +15597,11 @@ create_tracepoint_from_upload (struct uploaded_tp *utp)
 	       "has no source form, ignoring it"),
 	     utp->number);
 
+  location = string_to_event_location (&addr_str, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
   if (!create_breakpoint (get_current_arch (),
-			  addr_str,
-			  utp->cond_string, -1, NULL,
+			  location,
+			  utp->cond_string, -1, addr_str,
 			  0 /* parse cond/thread */,
 			  0 /* tempflag */,
 			  utp->type /* type_wanted */,
@@ -15463,7 +15612,12 @@ create_tracepoint_from_upload (struct uploaded_tp *utp)
 			  utp->enabled /* enabled */,
 			  0 /* internal */,
 			  CREATE_BREAKPOINT_FLAGS_INSERTED))
-    return NULL;
+    {
+      do_cleanups (cleanup);
+      return NULL;
+    }
+
+  do_cleanups (cleanup);
 
   /* Get the tracepoint we just created.  */
   tp = get_tracepoint (tracepoint_count);
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h
index b23d2eb..879264a 100644
--- a/gdb/breakpoint.h
+++ b/gdb/breakpoint.h
@@ -37,6 +37,7 @@ struct bpstats;
 struct bp_location;
 struct linespec_result;
 struct linespec_sals;
+struct event_location;
 
 /* This is the maximum number of bytes a breakpoint instruction can
    take.  Feel free to increase it.  It's just used in a few places to
@@ -561,8 +562,9 @@ struct breakpoint_ops
      `create_sals_from_location_default'.
 
      This function is called inside `create_breakpoint'.  */
-  void (*create_sals_from_location) (char **, struct linespec_result *,
-				     enum bptype, char *, char **);
+  void (*create_sals_from_location) (struct event_location *location,
+				     struct linespec_result *canonical,
+				     enum bptype type_wanted);
 
   /* This method will be responsible for creating a breakpoint given its SALs.
      Usually, it just calls `create_breakpoints_sal' (for ordinary
@@ -583,8 +585,9 @@ struct breakpoint_ops
      it calls `decode_line_full'.
 
      This function is called inside `location_to_sals'.  */
-  void (*decode_location) (struct breakpoint *, char **,
-			   struct symtabs_and_lines *);
+  void (*decode_location) (struct breakpoint *b,
+			   struct event_location *location,
+			   struct symtabs_and_lines *sals);
 
   /* Return true if this breakpoint explains a signal.  See
      bpstat_explains_signal.  */
@@ -683,17 +686,17 @@ struct breakpoint
        non-thread-specific ordinary breakpoints this is NULL.  */
     struct program_space *pspace;
 
-    /* String we used to set the breakpoint (malloc'd).  */
-    char *addr_string;
+    /* Location we used to set the breakpoint (malloc'd).  */
+    struct event_location *location;
 
     /* The filter that should be passed to decode_line_full when
        re-setting this breakpoint.  This may be NULL, but otherwise is
        allocated with xmalloc.  */
     char *filter;
 
-    /* For a ranged breakpoint, the string we used to find
+    /* For a ranged breakpoint, the location we used to find
        the end of the range (malloc'd).  */
-    char *addr_string_range_end;
+    struct event_location *location_range_end;
 
     /* Architecture we used to set the breakpoint.  */
     struct gdbarch *gdbarch;
@@ -1263,7 +1266,8 @@ enum breakpoint_create_flags
     CREATE_BREAKPOINT_FLAGS_INSERTED = 1 << 0
   };
 
-extern int create_breakpoint (struct gdbarch *gdbarch, char *arg,
+extern int create_breakpoint (struct gdbarch *gdbarch,
+			      const struct event_location *location,
 			      char *cond_string, int thread,
 			      char *extra_string,
 			      int parse_arg,
diff --git a/gdb/cli/cli-cmds.c b/gdb/cli/cli-cmds.c
index a5ef9c6..44ed3f9 100644
--- a/gdb/cli/cli-cmds.c
+++ b/gdb/cli/cli-cmds.c
@@ -40,6 +40,7 @@
 #include "disasm.h"
 #include "tracepoint.h"
 #include "filestuff.h"
+#include "location.h"
 
 #include "ui-out.h"
 
@@ -762,7 +763,6 @@ edit_command (char *arg, int from_tty)
   struct symtabs_and_lines sals;
   struct symtab_and_line sal;
   struct symbol *sym;
-  char *arg1;
   char *editor;
   char *p;
   const char *fn;
@@ -784,21 +784,31 @@ edit_command (char *arg, int from_tty)
     }
   else
     {
-      /* Now should only be one argument -- decode it in SAL.  */
+      struct cleanup *cleanup;
+      struct event_location *location, *copy_location;
+      char *arg1;
 
+      /* Now should only be one argument -- decode it in SAL.  */
       arg1 = arg;
-      sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
+      location = string_to_event_location (&arg1, current_language);
+      cleanup = make_cleanup_delete_event_location (location);
+      copy_location = copy_event_location_tmp (location);
+      make_cleanup (xfree, copy_location);
+      sals = decode_line_1 (copy_location, DECODE_LINE_LIST_MODE, 0, 0);
+      event_location_advance_input_ptr (&arg1, copy_location);
 
       filter_sals (&sals);
       if (! sals.nelts)
 	{
 	  /*  C++  */
+	  do_cleanups (cleanup);
 	  return;
 	}
       if (sals.nelts > 1)
 	{
 	  ambiguous_line_spec (&sals);
 	  xfree (sals.sals);
+	  do_cleanups (cleanup);
 	  return;
 	}
 
@@ -840,6 +850,7 @@ edit_command (char *arg, int from_tty)
 
       if (sal.symtab == 0)
         error (_("No line number known for %s."), arg);
+      do_cleanups (cleanup);
     }
 
   if ((editor = (char *) getenv ("EDITOR")) == NULL)
@@ -868,6 +879,9 @@ list_command (char *arg, int from_tty)
   int dummy_beg = 0;
   int linenum_beg = 0;
   char *p;
+  struct cleanup *cleanup;
+
+  cleanup = make_cleanup (null_cleanup, NULL);
 
   /* Pull in the current default source line if necessary.  */
   if (arg == 0 || arg[0] == '+' || arg[0] == '-')
@@ -910,15 +924,27 @@ list_command (char *arg, int from_tty)
     dummy_beg = 1;
   else
     {
-      sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
+      struct event_location *location, *copy_location;
+
+      location = string_to_event_location (&arg1, current_language);
+      make_cleanup_delete_event_location (location);
+      copy_location = copy_event_location_tmp (location);
+      make_cleanup (xfree, copy_location);
+      sals = decode_line_1 (copy_location, DECODE_LINE_LIST_MODE, 0, 0);
+      event_location_advance_input_ptr (&arg1, copy_location);
 
       filter_sals (&sals);
       if (!sals.nelts)
-	return;			/*  C++  */
+	{
+	  /*  C++  */
+	  do_cleanups (cleanup);
+	  return;
+	}
       if (sals.nelts > 1)
 	{
 	  ambiguous_line_spec (&sals);
 	  xfree (sals.sals);
+	  do_cleanups (cleanup);
 	  return;
 	}
 
@@ -943,18 +969,31 @@ list_command (char *arg, int from_tty)
 	dummy_end = 1;
       else
 	{
+	  struct event_location *location, *copy_location;
+
+	  location = string_to_event_location (&arg1, current_language);
+	  make_cleanup_delete_event_location (location);
+	  copy_location = copy_event_location_tmp (location);
+	  make_cleanup (xfree, copy_location);
 	  if (dummy_beg)
-	    sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
+	    sals_end = decode_line_1 (copy_location,
+				      DECODE_LINE_LIST_MODE, 0, 0);
 	  else
-	    sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
+	    sals_end = decode_line_1 (copy_location, DECODE_LINE_LIST_MODE,
 				      sal.symtab, sal.line);
+	  event_location_advance_input_ptr (&arg1, copy_location);
+
 	  filter_sals (&sals_end);
 	  if (sals_end.nelts == 0)
-	    return;
+	    {
+	      do_cleanups (cleanup);
+	      return;
+	    }
 	  if (sals_end.nelts > 1)
 	    {
 	      ambiguous_line_spec (&sals_end);
 	      xfree (sals_end.sals);
+	      do_cleanups (cleanup);
 	      return;
 	    }
 	  sal_end = sals_end.sals[0];
@@ -1035,6 +1074,7 @@ list_command (char *arg, int from_tty)
 			 ? sal.line + get_lines_to_list ()
 			 : sal_end.line + 1),
 			0);
+  do_cleanups (cleanup);
 }
 
 /* Subroutine of disassemble_command to simplify it.
diff --git a/gdb/elfread.c b/gdb/elfread.c
index 085ff47..2603acb 100644
--- a/gdb/elfread.c
+++ b/gdb/elfread.c
@@ -46,6 +46,7 @@
 #include "bcache.h"
 #include "gdb_bfd.h"
 #include "build-id.h"
+#include "location.h"
 
 extern void _initialize_elfread (void);
 
@@ -1069,7 +1070,8 @@ elf_gnu_ifunc_resolver_return_stop (struct breakpoint *b)
   resolved_pc = gdbarch_addr_bits_remove (gdbarch, resolved_pc);
 
   gdb_assert (current_program_space == b->pspace || b->pspace == NULL);
-  elf_gnu_ifunc_record_cache (b->addr_string, resolved_pc);
+  elf_gnu_ifunc_record_cache (event_location_to_string (b->location),
+			      resolved_pc);
 
   sal = find_pc_line (resolved_pc, 0);
   sals.nelts = 1;
diff --git a/gdb/linespec.c b/gdb/linespec.c
index cb76b9c..6c2467e 100644
--- a/gdb/linespec.c
+++ b/gdb/linespec.c
@@ -44,6 +44,7 @@
 #include "filenames.h"
 #include "ada-lang.h"
 #include "stack.h"
+#include "location.h"
 
 typedef struct symbol *symbolp;
 DEF_VEC_P (symbolp);
@@ -1765,19 +1766,25 @@ linespec_parse_basic (linespec_parser *parser)
 static void
 canonicalize_linespec (struct linespec_state *state, linespec_p ls)
 {
+  char *tmp;
+
   /* If canonicalization was not requested, no need to do anything.  */
   if (!state->canonical)
     return;
 
   /* Shortcut expressions, which can only appear by themselves.  */
   if (ls->expression != NULL)
-    state->canonical->addr_string = xstrdup (ls->expression);
+    {
+      state->canonical->location
+	= new_linespec_location (ls->expression);
+    }
   else
     {
       struct ui_file *buf;
       int need_colon = 0;
 
       buf = mem_fileopen ();
+
       if (ls->source_filename)
 	{
 	  fputs_unfiltered (ls->source_filename, buf);
@@ -1826,7 +1833,9 @@ canonicalize_linespec (struct linespec_state *state, linespec_p ls)
 			    ls->line_offset.offset);
 	}
 
-      state->canonical->addr_string = ui_file_xstrdup (buf, NULL);
+      tmp = ui_file_xstrdup (buf, NULL);
+      state->canonical->location = new_linespec_location (tmp);
+      xfree (tmp);
       ui_file_delete (buf);
     }
 }
@@ -2371,6 +2380,7 @@ linespec_parser_new (linespec_parser *parser,
 		     int default_line,
 		     struct linespec_result *canonical)
 {
+  memset (parser, 0, sizeof (linespec_parser));
   parser->lexer.current.type = LSTOKEN_CONSUMED;
   memset (PARSER_RESULT (parser), 0, sizeof (struct linespec));
   PARSER_RESULT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN;
@@ -2416,10 +2426,45 @@ linespec_parser_delete (void *arg)
   linespec_state_destructor (PARSER_STATE (parser));
 }
 
+/* A helper function for decode_line_full and decode_line_1 to
+   turn LOCATION into symtabs_and_lines.  */
+
+static struct symtabs_and_lines
+event_location_to_sals (linespec_parser *parser,
+			struct event_location *location)
+{
+  struct symtabs_and_lines result = {NULL, 0};
+
+  switch (event_location_type (location))
+    {
+    case LINESPEC_LOCATION:
+      {
+	const char *copy, *orig;
+	volatile struct gdb_exception except;
+
+	TRY_CATCH (except, RETURN_MASK_ERROR)
+	  {
+	    orig = copy = get_linespec_location (location);
+	    result = parse_linespec (parser, &copy);
+	  }
+	advance_event_location_ptr (location, copy - orig);
+
+	if (except.reason < 0)
+	  throw_exception (except);
+      }
+      break;
+
+    default:
+      gdb_assert_not_reached ("unhandled event location type");
+    }
+
+  return result;
+}
+
 /* See linespec.h.  */
 
 void
-decode_line_full (char **argptr, int flags,
+decode_line_full (struct event_location *location, int flags,
 		  struct symtab *default_symtab,
 		  int default_line, struct linespec_result *canonical,
 		  const char *select_mode,
@@ -2430,7 +2475,6 @@ decode_line_full (char **argptr, int flags,
   VEC (const_char_ptr) *filters = NULL;
   linespec_parser parser;
   struct linespec_state *state;
-  const char *copy, *orig;
 
   gdb_assert (canonical != NULL);
   /* The filter only makes sense for 'all'.  */
@@ -2446,13 +2490,10 @@ decode_line_full (char **argptr, int flags,
   cleanups = make_cleanup (linespec_parser_delete, &parser);
   save_current_program_space ();
 
-  orig = copy = *argptr;
-  result = parse_linespec (&parser, &copy);
-  *argptr += copy - orig;
+  result = event_location_to_sals (&parser, location);
   state = PARSER_STATE (&parser);
 
   gdb_assert (result.nelts == 1 || canonical->pre_expanded);
-  gdb_assert (canonical->addr_string != NULL);
   canonical->pre_expanded = 1;
 
   /* Arrange for allocated canonical names to be freed.  */
@@ -2496,23 +2537,20 @@ decode_line_full (char **argptr, int flags,
 /* See linespec.h.  */
 
 struct symtabs_and_lines
-decode_line_1 (char **argptr, int flags,
+decode_line_1 (struct event_location *location, int flags,
 	       struct symtab *default_symtab,
 	       int default_line)
 {
   struct symtabs_and_lines result;
   linespec_parser parser;
   struct cleanup *cleanups;
-  const char *copy, *orig;
 
   linespec_parser_new (&parser, flags, current_language, default_symtab,
 		       default_line, NULL);
   cleanups = make_cleanup (linespec_parser_delete, &parser);
   save_current_program_space ();
 
-  orig = copy = *argptr;
-  result = parse_linespec (&parser, &copy);
-  *argptr += copy - orig;
+  result = event_location_to_sals (&parser, location);
 
   do_cleanups (cleanups);
   return result;
@@ -2525,6 +2563,8 @@ decode_line_with_current_source (char *string, int flags)
 {
   struct symtabs_and_lines sals;
   struct symtab_and_line cursal;
+  struct event_location *location, *copy_location;
+  struct cleanup *cleanup;
 
   if (string == 0)
     error (_("Empty line specification."));
@@ -2533,11 +2573,19 @@ decode_line_with_current_source (char *string, int flags)
      and get a default source symtab+line or it will recursively call us!  */
   cursal = get_current_source_symtab_and_line ();
 
-  sals = decode_line_1 (&string, flags,
+  location = string_to_event_location (&string, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
+
+  copy_location = copy_event_location_tmp (location);
+  make_cleanup (xfree, copy_location);
+  sals = decode_line_1 (copy_location, flags,
 			cursal.symtab, cursal.line);
+  event_location_advance_input_ptr (&string, copy_location);
 
   if (*string)
     error (_("Junk at end of line specification: %s"), string);
+
+  do_cleanups (cleanup);
   return sals;
 }
 
@@ -2547,19 +2595,30 @@ struct symtabs_and_lines
 decode_line_with_last_displayed (char *string, int flags)
 {
   struct symtabs_and_lines sals;
+  struct event_location *location, *copy_location;
+  struct cleanup *cleanup;
 
   if (string == 0)
     error (_("Empty line specification."));
 
+  location = string_to_event_location (&string, current_language);
+  cleanup = make_cleanup_delete_event_location (location);
+
+  copy_location = copy_event_location_tmp (location);
+  make_cleanup (xfree, copy_location);
   if (last_displayed_sal_is_valid ())
-    sals = decode_line_1 (&string, flags,
+    sals = decode_line_1 (copy_location, flags,
 			  get_last_displayed_symtab (),
 			  get_last_displayed_line ());
   else
-    sals = decode_line_1 (&string, flags, (struct symtab *) NULL, 0);
+    sals = decode_line_1 (copy_location, flags, (struct symtab *) NULL, 0);
+
+  event_location_advance_input_ptr (&string, copy_location);
 
   if (*string)
     error (_("Junk at end of line specification: %s"), string);
+
+  do_cleanups (cleanup);
   return sals;
 }
 
@@ -2655,12 +2714,20 @@ decode_objc (struct linespec_state *self, linespec_p ls, const char **argptr)
 
       if (self->canonical)
 	{
+	  char *str;
+
 	  self->canonical->pre_expanded = 1;
+
 	  if (ls->source_filename)
-	    self->canonical->addr_string
-	      = xstrprintf ("%s:%s", ls->source_filename, saved_arg);
+	    {
+	      str = xstrprintf ("%s:%s",
+				ls->source_filename, saved_arg);
+	    }
 	  else
-	    self->canonical->addr_string = xstrdup (saved_arg);
+	    str = xstrdup (saved_arg);
+
+	  self->canonical->location = new_linespec_location (str);
+	  xfree (str);
 	}
     }
 
@@ -3693,7 +3760,7 @@ destroy_linespec_result (struct linespec_result *ls)
   int i;
   struct linespec_sals *lsal;
 
-  xfree (ls->addr_string);
+  delete_event_location (ls->location);
   for (i = 0; VEC_iterate (linespec_sals, ls->sals, i, lsal); ++i)
     {
       xfree (lsal->canonical);
diff --git a/gdb/linespec.h b/gdb/linespec.h
index 5c065cf..658f2a1 100644
--- a/gdb/linespec.h
+++ b/gdb/linespec.h
@@ -39,7 +39,7 @@ enum decode_line_flags
 
 struct linespec_sals
 {
-  /* This is the linespec corresponding to the sals contained in this
+  /* This is the location corresponding to the sals contained in this
      object.  It can be passed as the FILTER argument to future calls
      to decode_line_full.  This is freed by
      destroy_linespec_result.  */
@@ -71,9 +71,9 @@ struct linespec_result
      object.  */
   int pre_expanded;
 
-  /* If PRE_EXPANDED is non-zero, this is set to the linespec entered
+  /* If PRE_EXPANDED is non-zero, this is set to the location entered
      by the user.  This will be freed by destroy_linespec_result.  */
-  char *addr_string;
+  struct event_location *location;
 
   /* The sals.  The vector will be freed by
      destroy_linespec_result.  */
@@ -96,10 +96,10 @@ extern struct cleanup *
 /* Decode a linespec using the provided default symtab and line.  */
 
 extern struct symtabs_and_lines
-	decode_line_1 (char **argptr, int flags,
+	decode_line_1 (struct event_location *location, int flags,
 		       struct symtab *default_symtab, int default_line);
 
-/* Parse *ARGPTR as a linespec and return results.  This is the "full"
+/* Parse LOCATION and return results.  This is the "full"
    interface to this module, which handles multiple results
    properly.
 
@@ -135,7 +135,7 @@ extern struct symtabs_and_lines
    strcmp sense) to FILTER will be returned; all others will be
    filtered out.  */
 
-extern void decode_line_full (char **argptr, int flags,
+extern void decode_line_full (struct event_location *location, int flags,
 			      struct symtab *default_symtab, int default_line,
 			      struct linespec_result *canonical,
 			      const char *select_mode,
diff --git a/gdb/mi/mi-cmd-break.c b/gdb/mi/mi-cmd-break.c
index 29e3fb3..327b2de 100644
--- a/gdb/mi/mi-cmd-break.c
+++ b/gdb/mi/mi-cmd-break.c
@@ -30,6 +30,9 @@
 #include "observer.h"
 #include "mi-main.h"
 #include "mi-cmd-break.h"
+#include "language.h"
+#include "location.h"
+#include "linespec.h"
 #include "gdb_obstack.h"
 #include <ctype.h>
 
@@ -179,6 +182,7 @@ mi_cmd_break_insert_1 (int dprintf, char *command, char **argv, int argc)
   int tracepoint = 0;
   struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
   enum bptype type_wanted;
+  struct event_location *location;
   struct breakpoint_ops *ops;
   char *extra_string = NULL;
 
@@ -289,7 +293,10 @@ mi_cmd_break_insert_1 (int dprintf, char *command, char **argv, int argc)
       ops = &bkpt_breakpoint_ops;
     }
 
-  create_breakpoint (get_current_arch (), address, condition, thread,
+  location = string_to_event_location (&address, current_language);
+  make_cleanup_delete_event_location (location);
+
+  create_breakpoint (get_current_arch (), location, condition, thread,
 		     extra_string,
 		     0 /* condition and thread are valid.  */,
 		     temp_p, type_wanted,
diff --git a/gdb/probe.c b/gdb/probe.c
index 838d9f9..edf16f7 100644
--- a/gdb/probe.c
+++ b/gdb/probe.c
@@ -31,6 +31,8 @@
 #include "gdb_regex.h"
 #include "frame.h"
 #include "arch-utils.h"
+#include "location.h"
+
 #include <ctype.h>
 
 typedef struct bound_probe bound_probe_s;
@@ -41,23 +43,24 @@ DEF_VEC_O (bound_probe_s);
 /* See definition in probe.h.  */
 
 struct symtabs_and_lines
-parse_probes (char **argptr, struct linespec_result *canonical)
+parse_probes (struct event_location *location,
+	      struct linespec_result *canonical)
 {
-  char *arg_start, *arg_end, *arg;
+  char *arg_end, *arg;
   char *objfile_namestr = NULL, *provider = NULL, *name, *p;
   struct cleanup *cleanup;
   struct symtabs_and_lines result;
   struct objfile *objfile;
   struct program_space *pspace;
   const struct probe_ops *probe_ops;
-  const char *cs;
+  const char *arg_start, *cs;
 
   result.sals = NULL;
   result.nelts = 0;
 
-  arg_start = *argptr;
+  arg_start = get_linespec_location (location);
 
-  cs = *argptr;
+  cs = arg_start;
   probe_ops = probe_linespec_to_ops (&cs);
   if (probe_ops == NULL)
     error (_("'%s' is not a probe linespec"), arg_start);
@@ -168,12 +171,16 @@ parse_probes (char **argptr, struct linespec_result *canonical)
 
   if (canonical)
     {
+      char *canon = savestring (arg_start, arg_end - arg_start);
+
       canonical->special_display = 1;
       canonical->pre_expanded = 1;
-      canonical->addr_string = savestring (*argptr, arg_end - *argptr);
+      canonical->location = new_linespec_location (canon);
+      xfree (canon);
     }
 
-  *argptr = arg_end;
+  /* Advance the location past all parsed input.  */
+  advance_event_location_ptr (location, arg_end - arg_start);
   do_cleanups (cleanup);
 
   return result;
diff --git a/gdb/probe.h b/gdb/probe.h
index aa8aba8..f53fec1 100644
--- a/gdb/probe.h
+++ b/gdb/probe.h
@@ -20,6 +20,8 @@
 #if !defined (PROBE_H)
 #define PROBE_H 1
 
+struct event_location;
+
 #include "gdb_vecs.h"
 
 /* Definition of a vector of probes.  */
@@ -201,9 +203,9 @@ struct bound_probe
   };
 
 /* A helper for linespec that decodes a probe specification.  It returns a
-   symtabs_and_lines object and updates *ARGPTR or throws an error.  */
+   symtabs_and_lines object and updates LOC or throws an error.  */
 
-extern struct symtabs_and_lines parse_probes (char **argptr,
+extern struct symtabs_and_lines parse_probes (struct event_location *loc,
 					      struct linespec_result *canon);
 
 /* Helper function to register the proper probe_ops to a newly created probe.
diff --git a/gdb/python/py-breakpoint.c b/gdb/python/py-breakpoint.c
index 125c6fd..969a01d 100644
--- a/gdb/python/py-breakpoint.c
+++ b/gdb/python/py-breakpoint.c
@@ -31,6 +31,7 @@
 #include "ada-lang.h"
 #include "arch-utils.h"
 #include "language.h"
+#include "location.h"
 
 /* Number of live breakpoints.  */
 static int bppy_live;
@@ -369,7 +370,7 @@ bppy_set_hit_count (PyObject *self, PyObject *newvalue, void *closure)
 static PyObject *
 bppy_get_location (PyObject *self, void *closure)
 {
-  char *str;
+  const char *str;
   gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self;
 
   BPPY_REQUIRE_VALID (obj);
@@ -377,8 +378,7 @@ bppy_get_location (PyObject *self, void *closure)
   if (obj->bp->type != bp_breakpoint)
     Py_RETURN_NONE;
 
-  str = obj->bp->addr_string;
-
+  str = event_location_to_string (obj->bp->location);
   if (! str)
     str = "";
   return PyString_Decode (str, strlen (str), host_charset (), NULL);
@@ -654,8 +654,12 @@ bppy_init (PyObject *self, PyObject *args, PyObject *kwargs)
 	{
 	case bp_breakpoint:
 	  {
+	    struct event_location *location;
+
+	    location = new_linespec_location (copy);
+	    make_cleanup_delete_event_location (location);
 	    create_breakpoint (python_gdbarch,
-			       copy, NULL, -1, NULL,
+			       location, NULL, -1, NULL,
 			       0,
 			       temporary_bp, bp_breakpoint,
 			       0,
diff --git a/gdb/python/py-finishbreakpoint.c b/gdb/python/py-finishbreakpoint.c
index 712a9ee..d08e13a 100644
--- a/gdb/python/py-finishbreakpoint.c
+++ b/gdb/python/py-finishbreakpoint.c
@@ -30,6 +30,7 @@
 #include "observer.h"
 #include "inferior.h"
 #include "block.h"
+#include "location.h"
 
 /* Function that is called when a Python finish bp is found out of scope.  */
 static char * const outofscope_func = "out_of_scope";
@@ -168,7 +169,7 @@ bpfinishpy_init (PyObject *self, PyObject *args, PyObject *kwargs)
   int internal_bp = 0;
   CORE_ADDR finish_pc, pc;
   volatile struct gdb_exception except;
-  char *addr_str, small_buf[100];
+  char small_buf[100];
   struct symbol *function;
 
   if (!PyArg_ParseTupleAndKeywords (args, kwargs, "|OO", keywords,
@@ -287,13 +288,16 @@ bpfinishpy_init (PyObject *self, PyObject *args, PyObject *kwargs)
 
   TRY_CATCH (except, RETURN_MASK_ALL)
     {
+      struct event_location *location;
+      struct cleanup *back_to;
+
       /* Set a breakpoint on the return address.  */
       finish_pc = get_frame_pc (prev_frame);
       xsnprintf (small_buf, sizeof (small_buf), "*%s", hex_string (finish_pc));
-      addr_str = small_buf;
-
+      location = new_linespec_location (small_buf);
+      back_to = make_cleanup_delete_event_location (location);
       create_breakpoint (python_gdbarch,
-                         addr_str, NULL, thread, NULL,
+                         location, NULL, thread, NULL,
                          0,
                          1 /*temp_flag*/,
                          bp_breakpoint,
@@ -301,6 +305,7 @@ bpfinishpy_init (PyObject *self, PyObject *args, PyObject *kwargs)
                          AUTO_BOOLEAN_TRUE,
                          &bkpt_breakpoint_ops,
                          0, 1, internal_bp, 0);
+      do_cleanups (back_to);
     }
   GDB_PY_SET_HANDLE_EXCEPTION (except);
 
diff --git a/gdb/python/python.c b/gdb/python/python.c
index cbfa73a..8ef865e 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -35,6 +35,7 @@
 #include "extension-priv.h"
 #include "cli/cli-utils.h"
 #include <ctype.h>
+#include "location.h"
 
 /* Declared constants and enum for python stack printing.  */
 static const char python_excp_none[] = "none";
@@ -708,12 +709,13 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
 						  appease gcc.  */
   struct symtab_and_line sal;
   const char *arg = NULL;
-  char *copy_to_free = NULL, *copy = NULL;
+  char *copy = NULL;
   struct cleanup *cleanups;
   PyObject *result = NULL;
   PyObject *return_result = NULL;
   PyObject *unparsed = NULL;
   volatile struct gdb_exception except;
+  struct event_location *location, *copy_location;
 
   if (! PyArg_ParseTuple (args, "|s", &arg))
     return NULL;
@@ -721,13 +723,21 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
   cleanups = make_cleanup (null_cleanup, NULL);
 
   sals.sals = NULL;
+  if (arg != NULL)
+    {
+      location = new_linespec_location (arg);
+      make_cleanup_delete_event_location (location);
+    }
+
+  copy_location = NULL;
+  make_cleanup (free_current_contents, &copy_location);
   TRY_CATCH (except, RETURN_MASK_ALL)
     {
       if (arg)
 	{
-	  copy = xstrdup (arg);
-	  copy_to_free = copy;
-	  sals = decode_line_1 (&copy, 0, 0, 0);
+	  copy_location = copy_event_location_tmp (location);
+	  sals = decode_line_1 (copy_location, 0, 0, 0);
+	  event_location_advance_input_ptr (&copy, copy_location);
 	}
       else
 	{
@@ -739,10 +749,7 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
     }
 
   if (sals.sals != NULL && sals.sals != &sal)
-    {
-      make_cleanup (xfree, copy_to_free);
-      make_cleanup (xfree, sals.sals);
-    }
+    make_cleanup (xfree, sals.sals);
 
   if (except.reason < 0)
     {
diff --git a/gdb/remote.c b/gdb/remote.c
index ba04d0c..0a39c5b 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -46,6 +46,7 @@
 #include "gdb_bfd.h"
 #include "filestuff.h"
 #include "rsp-low.h"
+#include "location.h"
 
 #include <sys/time.h>
 
@@ -10539,13 +10540,12 @@ remote_download_tracepoint (struct target_ops *self, struct bp_location *loc)
 
   if (packet_support (PACKET_TracepointSource) == PACKET_ENABLE)
     {
-      if (b->addr_string)
+      if (b->location != NULL)
 	{
 	  strcpy (buf, "QTDPsrc:");
-	  encode_source_string (b->number, loc->address,
-				"at", b->addr_string, buf + strlen (buf),
-				2048 - strlen (buf));
-
+	  encode_source_string (b->number, loc->address, "at",
+				event_location_to_string (b->location),
+				buf + strlen (buf), 2048 - strlen (buf));
 	  putpkt (buf);
 	  remote_get_noisy_reply (&target_buf, &target_buf_size);
 	  if (strcmp (target_buf, "OK"))
diff --git a/gdb/spu-tdep.c b/gdb/spu-tdep.c
index 4fc3ca5..e20fea3 100644
--- a/gdb/spu-tdep.c
+++ b/gdb/spu-tdep.c
@@ -48,7 +48,7 @@
 #include "ax.h"
 #include "exceptions.h"
 #include "spu-tdep.h"
-
+#include "location.h"
 
 /* The list of available "set spu " and "show spu " commands.  */
 static struct cmd_list_element *setspucmdlist = NULL;
@@ -1958,7 +1958,8 @@ spu_catch_start (struct objfile *objfile)
   struct bound_minimal_symbol minsym;
   struct symtab *symtab;
   CORE_ADDR pc;
-  char buf[32];
+  struct event_location *location;
+  struct cleanup *back_to;
 
   /* Do this only if requested by "set spu stop-on-load on".  */
   if (!spu_stop_on_load_p)
@@ -2001,8 +2002,9 @@ spu_catch_start (struct objfile *objfile)
 
   /* Use a numerical address for the set_breakpoint command to avoid having
      the breakpoint re-set incorrectly.  */
-  xsnprintf (buf, sizeof buf, "*%s", core_addr_to_string (pc));
-  create_breakpoint (get_objfile_arch (objfile), buf /* arg */,
+  location = new_linespec_location (core_addr_to_string (pc));
+  back_to = make_cleanup_delete_event_location (location);
+  create_breakpoint (get_objfile_arch (objfile), location,
 		     NULL /* cond_string */, -1 /* thread */,
 		     NULL /* extra_string */,
 		     0 /* parse_condition_and_thread */, 1 /* tempflag */,
@@ -2011,6 +2013,7 @@ spu_catch_start (struct objfile *objfile)
 		     AUTO_BOOLEAN_FALSE /* pending_break_support */,
 		     &bkpt_breakpoint_ops /* ops */, 0 /* from_tty */,
 		     1 /* enabled */, 0 /* internal  */, 0);
+  do_cleanups (back_to);
 }
 
 
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index c522193..3e83552 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -57,6 +57,7 @@
 #include "filestuff.h"
 #include "rsp-low.h"
 #include "tracefile.h"
+#include "location.h"
 
 /* readline include files */
 #include "readline/readline.h"
@@ -2712,14 +2713,24 @@ scope_info (char *args, int from_tty)
   int j, count = 0;
   struct gdbarch *gdbarch;
   int regno;
+  struct event_location *location, *copy_location;
+  struct cleanup *back_to;
 
   if (args == 0 || *args == 0)
     error (_("requires an argument (function, "
 	     "line or *addr) to define a scope"));
 
-  sals = decode_line_1 (&args, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
+  location = string_to_event_location (&args, current_language);
+  back_to = make_cleanup_delete_event_location (location);
+  copy_location = copy_event_location_tmp (location);
+  make_cleanup (xfree, copy_location);
+  sals = decode_line_1 (copy_location, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
   if (sals.nelts == 0)
-    return;		/* Presumably decode_line_1 has already warned.  */
+    {
+      /* Presumably decode_line_1 has already warned.  */
+      do_cleanups (back_to);
+      return;
+    }
 
   /* Resolve line numbers to PC.  */
   resolve_sal_pc (&sals.sals[0]);
@@ -2856,6 +2867,7 @@ scope_info (char *args, int from_tty)
   if (count <= 0)
     printf_filtered ("Scope for %s contains no locals or arguments.\n",
 		     save_args);
+  do_cleanups (back_to);
 }
 
 /* Helper for trace_dump_command.  Dump the action list starting at
@@ -3078,7 +3090,7 @@ trace_dump_command (char *args, int from_tty)
 
 extern int
 encode_source_string (int tpnum, ULONGEST addr,
-		      char *srctype, char *src, char *buf, int buf_size)
+		      char *srctype, const char *src, char *buf, int buf_size)
 {
   if (80 + strlen (srctype) > buf_size)
     error (_("Buffer too small for source encoding"));
diff --git a/gdb/tracepoint.h b/gdb/tracepoint.h
index 39b5edb..57e5807 100644
--- a/gdb/tracepoint.h
+++ b/gdb/tracepoint.h
@@ -298,7 +298,7 @@ extern struct trace_state_variable *
 extern struct trace_state_variable *create_trace_state_variable (const char *name);
 
 extern int encode_source_string (int num, ULONGEST addr,
-				 char *srctype, char *src,
+				 char *srctype, const char *src,
 				 char *buf, int buf_size);
 
 extern void parse_trace_status (char *line, struct trace_status *ts);
