gdb: add target_ops::supports_displaced_step

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

diff --git a/gdb/corefile.c b/gdb/corefile.c
index e0c75401402001121567284641e1bd5d3fb27940..996e5301b27a336abbe60adfb2b16cd65fb874e6 100644 (file)
--- a/gdb/corefile.c
+++ b/gdb/corefile.c
@@ -1,6 +1,6 @@
 /* Core dump and executable file functions above target vector, for GDB.
 
-   Copyright (C) 1986-2018 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -32,6 +32,7 @@
 #include "completer.h"
 #include "observable.h"
 #include "cli/cli-utils.h"
+#include "gdbarch.h"
 
 /* You can have any number of hooks for `exec_file_command' command to
    call.  If there's only one hook, it is set in exec_file_display
@@ -51,24 +52,6 @@ static int exec_file_hook_count = 0;         /* Size of array.  */
 
 \f
 
-/* Backward compatability with old way of specifying core files.  */
-
-void
-core_file_command (const char *filename, int from_tty)
-{
-  dont_repeat ();              /* Either way, seems bogus.  */
-
-  if (!filename)
-    {
-      gdb_assert (the_core_target != NULL);
-
-      the_core_target->detach (current_inferior (), from_tty);
-    }
-  else
-    core_target_open (filename, from_tty);
-}
-\f
-
 /* If there are two or more functions that wish to hook into
    exec_file_command, this function will call all of the hook
    functions.  */
@@ -156,9 +139,9 @@ validate_files (void)
     }
 }
 
-/* See common/common-inferior.h.  */
+/* See gdbsupport/common-inferior.h.  */
 
-char *
+const char *
 get_exec_file (int err)
 {
   if (exec_filename)
@@ -168,7 +151,6 @@ get_exec_file (int err)
 
   error (_("No executable file specified.\n\
 Use the \"file\" or \"exec-file\" command."));
-  return NULL;
 }
 \f
 
@@ -232,7 +214,7 @@ read_memory_object (enum target_object object, CORE_ADDR memaddr,
       enum target_xfer_status status;
       ULONGEST xfered_len;
 
-      status = target_xfer_partial (target_stack, object, NULL,
+      status = target_xfer_partial (current_top_target (), object, NULL,
                                    myaddr + xfered, NULL,
                                    memaddr + xfered, len - xfered,
                                    &xfered_len);
@@ -433,7 +415,7 @@ write_memory_signed_integer (CORE_ADDR addr, int len,
 \f
 /* The current default bfd target.  Points to storage allocated for
    gnutarget_string.  */
-char *gnutarget;
+const char *gnutarget;
 
 /* Same thing, except it is "auto" not NULL for the default case.  */
 static char *gnutarget_string;
@@ -490,19 +472,20 @@ complete_set_gnutarget (struct cmd_list_element *cmd,
 void
 set_gnutarget (const char *newtarget)
 {
-  if (gnutarget_string != NULL)
-    xfree (gnutarget_string);
+  xfree (gnutarget_string);
   gnutarget_string = xstrdup (newtarget);
   set_gnutarget_command (NULL, 0, NULL);
 }
 
+void _initialize_core ();
 void
-_initialize_core (void)
+_initialize_core ()
 {
   struct cmd_list_element *c;
 
   c = add_cmd ("core-file", class_files, core_file_command, _("\
 Use FILE as core dump for examining memory and registers.\n\
+Usage: core-file FILE\n\
 No arg means have no core file.  This command has been superseded by the\n\
 `target core' and `detach' commands."), &cmdlist);
   set_cmd_completer (c, filename_completer);