Move common bits of catchpoint/exception_catchpoint to breakpoint's ctor

Move common bits of catchpoint and exception_catchpoint to
breakpoint's ctor, to avoid duplicating code.

Change-Id: I3a115180f4d496426522f1d89a3875026aea3cf2

gdb/break-catch-throw.c

@@ -73,7 +73,7 @@ struct exception_catchpoint : public base_breakpoint
 			bool temp, const char *cond_string_,
 			enum exception_event_kind kind_,
 			std::string &&except_rx)
-    : base_breakpoint (gdbarch, bp_catchpoint),
+    : base_breakpoint (gdbarch, bp_catchpoint, temp, cond_string_),
       kind (kind_),
       exception_rx (std::move (except_rx)),
       pattern (exception_rx.empty ()
@@ -81,10 +81,6 @@ struct exception_catchpoint : public base_breakpoint
 	       : new compiled_regex (exception_rx.c_str (), REG_NOSUB,
 				     _("invalid type-matching regexp")))
   {
-    if (cond_string_ != nullptr)
-      cond_string = make_unique_xstrdup (cond_string_);
-    disposition = temp ? disp_del : disp_donttouch;
-
     pspace = current_program_space;
     re_set ();
   }

gdb/breakpoint.c

@@ -7725,17 +7725,29 @@ disable_breakpoints_in_freed_objfile (struct objfile *objfile)
 
 /* See breakpoint.h.  */
 
+breakpoint::breakpoint (struct gdbarch *gdbarch_, enum bptype bptype,
+			bool temp, const char *cond_string_)
+  : type (bptype),
+    disposition (temp ? disp_del : disp_donttouch),
+    gdbarch (gdbarch_),
+    language (current_language->la_language),
+    input_radix (::input_radix),
+    cond_string (cond_string_ != nullptr
+		 ? make_unique_xstrdup (cond_string_)
+		 : nullptr),
+    related_breakpoint (this)
+{
+}
+
+/* See breakpoint.h.  */
+
 catchpoint::catchpoint (struct gdbarch *gdbarch, bool temp,
-			const char *cond_string_)
-  : breakpoint (gdbarch, bp_catchpoint)
+			const char *cond_string)
+  : breakpoint (gdbarch, bp_catchpoint, temp, cond_string)
 {
   add_dummy_location (this, current_program_space);
 
   pspace = current_program_space;
-
-  if (cond_string_ != nullptr)
-    cond_string = make_unique_xstrdup (cond_string_);
-  disposition = temp ? disp_del : disp_donttouch;
 }
 
 void

gdb/breakpoint.h

@@ -620,14 +620,8 @@ using bp_location_range = next_range<bp_location>;
 
 struct breakpoint
 {
-  breakpoint (struct gdbarch *gdbarch_, enum bptype bptype)
-    : type (bptype),
-      gdbarch (gdbarch_),
-      language (current_language->la_language),
-      input_radix (::input_radix),
-      related_breakpoint (this)
-  {
-  }
+  breakpoint (struct gdbarch *gdbarch_, enum bptype bptype,
+	      bool temp = true, const char *cond_string = nullptr);
 
   DISABLE_COPY_AND_ASSIGN (breakpoint);