From: Andrew Burgess <aburgess@redhat.com>
Date: Fri, 14 Apr 2023 13:45:38 +0000 (+0100)
Subject: gdb: remove breakpoint_re_set_one
X-Git-Tag: gdb-16-branchpoint~1353
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b172d94b62b8a27c9d79cf70e565e31b21439c98;p=thirdparty%2Fbinutils-gdb.git

gdb: remove breakpoint_re_set_one

During a later patch I wanted to reset a single breakpoint, so I
called breakpoint_re_set_one.  However, this is not the right thing to
do.  If we look at breakpoint_re_set then we see that there's a whole
bunch of state that needs to be preserved prior to calling
breakpoint_re_set_one, and after calling breakpoint_re_set_one we
still need to call update_global_location_list.

I could just update the comment on breakpoint_re_set_one to make it
clearer how the function should be used -- or more likely to warn that
the function should only be used as a helper from breakpoint_re_set.

However, breakpoint_re_set_one is only 3 lines long.  So I figure it
might actually be easier to just fold breakpoint_re_set_one into
breakpoint_re_set, then there's no risk of accidentally calling
breakpoint_re_set_one when we shouldn't.

There should be no user visible changes after this commit.
---

diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index a9bb45685de..ad968c4742f 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -13214,17 +13214,6 @@ create_sals_from_location_spec_default (location_spec *locspec,
   parse_breakpoint_sals (locspec, canonical);
 }
 
-/* Reset a breakpoint.  */
-
-static void
-breakpoint_re_set_one (breakpoint *b)
-{
-  input_radix = b->input_radix;
-  set_language (b->language);
-
-  b->re_set ();
-}
-
 /* Re-set breakpoint locations for the current program space.
    Locations bound to other program spaces are left untouched.  */
 
@@ -13236,12 +13225,11 @@ breakpoint_re_set (void)
     scoped_restore save_input_radix = make_scoped_restore (&input_radix);
     scoped_restore_current_pspace_and_thread restore_pspace_thread;
 
-    /* breakpoint_re_set_one sets the current_language to the language
-       of the breakpoint it is resetting (see prepare_re_set_context)
-       before re-evaluating the breakpoint's location.  This change can
-       unfortunately get undone by accident if the language_mode is set
-       to auto, and we either switch frames, or more likely in this context,
-       we select the current frame.
+    /* To ::re_set each breakpoint we set the current_language to the
+       language of the breakpoint before re-evaluating the breakpoint's
+       location.  This change can unfortunately get undone by accident if
+       the language_mode is set to auto, and we either switch frames, or
+       more likely in this context, we select the current frame.
 
        We prevent this by temporarily turning the language_mode to
        language_mode_manual.  We restore it once all breakpoints
@@ -13258,7 +13246,9 @@ breakpoint_re_set (void)
       {
 	try
 	  {
-	    breakpoint_re_set_one (&b);
+	    input_radix = b.input_radix;
+	    set_language (b.language);
+	    b.re_set ();
 	  }
 	catch (const gdb_exception &ex)
 	  {