Use all_non_exited_inferiors in infrun.c

[deliverable/binutils-gdb.git] / gdb / frame.c

diff --git a/gdb/frame.c b/gdb/frame.c
index 84e0397db98e07dbfe0b476e33ec7c6c1b17c319..c746a6a231ed8abc7a12856cbbdf8690e060b3a8 100644 (file)
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -1,6 +1,6 @@
 /* Cache and manage frames for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2019 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -123,6 +123,8 @@ struct frame_info
   /* Cached copy of the previous frame's resume address.  */
   struct {
     enum cached_copy_status status;
+    /* Did VALUE require unmasking when being read.  */
+    bool masked;
     CORE_ADDR value;
   } prev_pc;
   
@@ -161,6 +163,25 @@ struct frame_info
   const char *stop_string;
 };
 
+/* See frame.h.  */
+
+void
+set_frame_previous_pc_masked (struct frame_info *frame)
+{
+  frame->prev_pc.masked = true;
+}
+
+/* See frame.h.  */
+
+bool
+get_frame_pc_masked (const struct frame_info *frame)
+{
+  gdb_assert (frame->next != nullptr);
+  gdb_assert (frame->next->prev_pc.status == CC_VALUE);
+
+  return frame->next->prev_pc.masked;
+}
+
 /* A frame stash used to speed up frame lookups.  Create a hash table
    to stash frames previously accessed from the frame cache for
    quicker subsequent retrieval.  The hash table is emptied whenever
@@ -429,8 +450,11 @@ fprint_frame (struct ui_file *file, struct frame_info *fi)
   if (fi->next == NULL || fi->next->prev_pc.status == CC_UNKNOWN)
     fprintf_unfiltered (file, "<unknown>");
   else if (fi->next->prev_pc.status == CC_VALUE)
-    fprintf_unfiltered (file, "%s",
-                       hex_string (fi->next->prev_pc.value));
+    {
+      fprintf_unfiltered (file, "%s", hex_string (fi->next->prev_pc.value));
+      if (fi->next->prev_pc.masked)
+       fprintf_unfiltered (file, "[PAC]");
+    }
   else if (fi->next->prev_pc.status == CC_NOT_SAVED)
     val_print_not_saved (file);
   else if (fi->next->prev_pc.status == CC_UNAVAILABLE)
@@ -722,7 +746,7 @@ frame_id_eq (struct frame_id l, struct frame_id r)
        if special addresses are different, the frames are different.  */
     eq = 0;
   else if (l.artificial_depth != r.artificial_depth)
-    /* If artifical depths are different, the frames must be different.  */
+    /* If artificial depths are different, the frames must be different.  */
     eq = 0;
   else
     /* Frames are equal.  */
@@ -2019,7 +2043,7 @@ get_prev_frame_always_1 (struct frame_info *this_frame)
       this_pc_in_block = get_frame_address_in_block (this_frame);
       morestack_msym = lookup_minimal_symbol_by_pc (this_pc_in_block).minsym;
       if (morestack_msym)
-       morestack_name = MSYMBOL_LINKAGE_NAME (morestack_msym);
+       morestack_name = morestack_msym->linkage_name ();
       if (!morestack_name || strcmp (morestack_name, "__morestack") != 0)
        {
          if (frame_debug)
@@ -2949,8 +2973,8 @@ Configure backtrace variables such as the backtrace limit"),
                  &set_backtrace_cmdlist, "set backtrace ",
                  0/*allow-unknown*/, &setlist);
   add_prefix_cmd ("backtrace", class_maintenance, show_backtrace_cmd, _("\
-Show backtrace specific variables\n\
-Show backtrace variables such as the backtrace limit"),
+Show backtrace specific variables.\n\
+Show backtrace variables such as the backtrace limit."),
                  &show_backtrace_cmdlist, "show backtrace ",
                  0/*allow-unknown*/, &showlist);