Make instream be per UI

[external/binutils.git] / gdb / main.c

diff --git a/gdb/main.c b/gdb/main.c
index 7237d2d..2b763a3 100644 (file)
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -1,6 +1,6 @@
 /* Top level stuff for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2015 Free Software Foundation, Inc.
+   Copyright (C) 1986-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -50,9 +50,6 @@
    do_setshow_command will free it.  */
 char *interpreter_p;
 
-/* Whether xdb commands will be handled.  */
-int xdb_commands = 0;
-
 /* Whether dbx commands will be handled.  */
 int dbx_commands = 0;
 
@@ -71,10 +68,6 @@ static int gdb_datadir_provided = 0;
    the possibly relocated path to python's lib directory.  */
 char *python_libdir = 0;
 
-struct ui_file *gdb_stdout;
-struct ui_file *gdb_stderr;
-struct ui_file *gdb_stdlog;
-struct ui_file *gdb_stdin;
 /* Target IO streams.  */
 struct ui_file *gdb_stdtargin;
 struct ui_file *gdb_stdtarg;
@@ -235,7 +228,7 @@ get_init_files (const char **system_gdbinit,
              for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p)
                continue;
              relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p,
-                                            NULL);
+                                            (char *) NULL);
              xfree (tmp_sys_gdbinit);
            }
          else
@@ -300,7 +293,9 @@ setup_alternate_signal_stack (void)
 #ifdef HAVE_SIGALTSTACK
   stack_t ss;
 
-  ss.ss_sp = xmalloc (SIGSTKSZ);
+  /* FreeBSD versions older than 11.0 use char * for ss_sp instead of
+     void *.  This cast works with both types.  */
+  ss.ss_sp = (char *) xmalloc (SIGSTKSZ);
   ss.ss_size = SIGSTKSZ;
   ss.ss_flags = 0;
 
@@ -314,9 +309,11 @@ setup_alternate_signal_stack (void)
 static int
 captured_command_loop (void *data)
 {
+  struct ui *ui = current_ui;
+
   /* Top-level execution commands can be run in the background from
      here on.  */
-  interpreter_async = 1;
+  current_ui->async = 1;
 
   current_interp_command_loop ();
   /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
@@ -331,7 +328,7 @@ captured_command_loop (void *data)
      error) we try to quit.  If the quit is aborted, catch_errors()
      which called this catch the signal and restart the command
      loop.  */
-  quit_command (NULL, instream == stdin);
+  quit_command (NULL, ui->instream == stdin);
   return 1;
 }
 
@@ -339,7 +336,7 @@ captured_command_loop (void *data)
    catch_command_errors/catch_command_errors_const.  */
 
 static int
-handle_command_errors (volatile struct gdb_exception e)
+handle_command_errors (struct gdb_exception e)
 {
   if (e.reason < 0)
     {
@@ -364,9 +361,7 @@ static int
 catch_command_errors (catch_command_errors_ftype *command,
                      char *arg, int from_tty)
 {
-  volatile struct gdb_exception e;
-
-  TRY_CATCH (e, RETURN_MASK_ALL)
+  TRY
     {
       int was_sync = sync_execution;
 
@@ -374,7 +369,13 @@ catch_command_errors (catch_command_errors_ftype *command,
 
       maybe_wait_sync_command_done (was_sync);
     }
-  return handle_command_errors (e);
+  CATCH (e, RETURN_MASK_ALL)
+    {
+      return handle_command_errors (e);
+    }
+  END_CATCH
+
+  return 1;
 }
 
 /* Type of the command callback passed to catch_command_errors_const.  */
@@ -387,9 +388,7 @@ static int
 catch_command_errors_const (catch_command_errors_const_ftype *command,
                            const char *arg, int from_tty)
 {
-  volatile struct gdb_exception e;
-
-  TRY_CATCH (e, RETURN_MASK_ALL)
+  TRY
     {
       int was_sync = sync_execution;
 
@@ -397,7 +396,13 @@ catch_command_errors_const (catch_command_errors_const_ftype *command,
 
       maybe_wait_sync_command_done (was_sync);
     }
-  return handle_command_errors (e);
+  CATCH (e, RETURN_MASK_ALL)
+    {
+      return handle_command_errors (e);
+    }
+  END_CATCH
+
+  return 1;
 }
 
 /* Type of this option.  */
@@ -432,7 +437,8 @@ DEF_VEC_O (cmdarg_s);
 static int
 captured_main (void *data)
 {
-  struct captured_main_args *context = data;
+  struct ui *ui = current_ui;
+  struct captured_main_args *context = (struct captured_main_args *) data;
   int argc = context->argc;
   char **argv = context->argv;
   static int quiet = 0;
@@ -500,10 +506,8 @@ captured_main (void *data)
   dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
   ndir = 0;
 
-  clear_quit_flag ();
-  saved_command_line = (char *) xmalloc (saved_command_line_size);
-  saved_command_line[0] = '\0';
-  instream = stdin;
+  saved_command_line = (char *) xstrdup ("");
+  ui->instream = stdin;
 
 #ifdef __MINGW32__
   /* Ensure stderr is unbuffered.  A Cygwin pty or pipe is implemented
@@ -540,6 +544,12 @@ captured_main (void *data)
   gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT,
                                        TARGET_SYSTEM_ROOT_RELOCATABLE);
 
+  if (gdb_sysroot == NULL || *gdb_sysroot == '\0')
+    {
+      xfree (gdb_sysroot);
+      gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX);
+    }
+
   debug_file_directory = relocate_gdb_directory (DEBUGDIR,
                                                 DEBUGDIR_RELOCATABLE);
 
@@ -549,7 +559,7 @@ captured_main (void *data)
 #ifdef WITH_PYTHON_PATH
   {
     /* For later use in helping Python find itself.  */
-    char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", NULL);
+    char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL);
 
     python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE);
     xfree (tmp);
@@ -588,7 +598,6 @@ captured_main (void *data)
     static struct option long_options[] =
     {
       {"tui", no_argument, 0, OPT_TUI},
-      {"xdb", no_argument, &xdb_commands, 1},
       {"dbx", no_argument, &dbx_commands, 1},
       {"readnow", no_argument, &readnow_symbol_files, 1},
       {"r", no_argument, &readnow_symbol_files, 1},
@@ -849,8 +858,7 @@ captured_main (void *data)
   /* Try to set up an alternate signal stack for SIGSEGV handlers.  */
   setup_alternate_signal_stack ();
 
-  /* Initialize all files.  Give the interpreter a chance to take
-     control of the console via the deprecated_init_ui_hook ().  */
+  /* Initialize all files.  */
   gdb_init (gdb_program_name);
 
   /* Now that gdb_init has created the initial inferior, we're in
@@ -957,7 +965,7 @@ captured_main (void *data)
 
   {
     /* Find it.  */
-    struct interp *interp = interp_lookup (interpreter_p);
+    struct interp *interp = interp_lookup (current_ui, interpreter_p);
 
     if (interp == NULL)
       error (_("Interpreter `%s' unrecognized"), interpreter_p);
@@ -1223,7 +1231,6 @@ Output and user interface control:\n\n\
 #endif
   fputs_unfiltered (_("\
   --dbx              DBX compatibility mode.\n\
-  --xdb              XDB compatibility mode.\n\
   -q, --quiet, --silent\n\
                      Do not print version number on startup.\n\n\
 "), stream);