ubsan: bpf: left shift cannot be represented in type 'DI' (aka 'long')

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

diff --git a/gdb/top.c b/gdb/top.c
index 08c742548bcd6cf65bb05921523c74c81f39ddcc..bc300e47542a67fb5ca28bbf64f671fa30859aa4 100644 (file)
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -54,6 +54,7 @@
 #include "gdb_select.h"
 #include "gdbsupport/scope-exit.h"
 #include "gdbarch.h"
+#include "gdbsupport/pathstuff.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -92,21 +93,35 @@ extern void initialize_all_files (void);
 #define DEFAULT_PROMPT "(gdb) "
 #endif
 
-/* Generate a function that exports a pointer to a field of the
-   current UI.  */
+struct ui_file **
+current_ui_gdb_stdout_ptr ()
+{
+  return &current_ui->m_gdb_stdout;
+}
 
-#define gen_ret_current_ui_field_ptr(type, name)       \
-type *                                                 \
-current_ui_## name ## _ptr (void)                      \
-{                                                      \
-  return &current_ui->m_ ## name;              \
+struct ui_file **
+current_ui_gdb_stdin_ptr ()
+{
+  return &current_ui->m_gdb_stdin;
 }
 
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog)
-gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout)
+struct ui_file **
+current_ui_gdb_stderr_ptr ()
+{
+  return &current_ui->m_gdb_stderr;
+}
+
+struct ui_file **
+current_ui_gdb_stdlog_ptr ()
+{
+  return &current_ui->m_gdb_stdlog;
+}
+
+struct ui_out **
+current_ui_current_uiout_ptr ()
+{
+  return &current_ui->m_current_uiout;
+}
 
 int inhibit_gdbinit = 0;
 
@@ -613,6 +628,18 @@ execute_command (const char *p, int from_tty)
       /* c->user_commands would be NULL in the case of a python command.  */
       if (c->theclass == class_user && c->user_commands)
        execute_user_command (c, arg);
+      else if (c->theclass == class_user
+              && c->prefixlist && !c->allow_unknown)
+       /* If this is a user defined prefix that does not allow unknown
+          (in other words, C is a prefix command and not a command
+          that can be followed by its args), report the list of
+          subcommands.  */
+       {
+         printf_unfiltered
+           ("\"%.*s\" must be followed by the name of a subcommand.\n",
+            (int) strlen (c->prefixname) - 1, c->prefixname);
+         help_list (*c->prefixlist, c->prefixname, all_commands, gdb_stdout);
+       }
       else if (c->type == set_cmd)
        do_set_command (arg, from_tty, c);
       else if (c->type == show_cmd)
@@ -1968,12 +1995,13 @@ init_history (void)
          that was read.  */
 #ifdef __MSDOS__
       /* No leading dots in file names are allowed on MSDOS.  */
-      history_filename = concat (current_directory, "/_gdb_history",
-                                (char *)NULL);
+      const char *fname = "_gdb_history";
 #else
-      history_filename = concat (current_directory, "/.gdb_history",
-                                (char *)NULL);
+      const char *fname = ".gdb_history";
 #endif
+
+      gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (fname));
+      history_filename = temp.release ();
     }
   read_history (history_filename);
 }
@@ -2051,8 +2079,12 @@ set_history_filename (const char *args,
      directories the file written will be the same as the one
      that was read.  */
   if (!IS_ABSOLUTE_PATH (history_filename))
-    history_filename = reconcat (history_filename, current_directory, "/", 
-                                history_filename, (char *) NULL);
+    {
+      gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (history_filename));
+
+      xfree (history_filename);
+      history_filename = temp.release ();
+    }
 }
 
 static void