[Ada] Add support for subprogram renamings
[deliverable/binutils-gdb.git] / gdb / main.c
index 06b3c90ac98d25575489d0388dd15dd22a61e851..aecd60afe6ca56b3f8ed3681eaf1ea06a464855a 100644 (file)
@@ -1,6 +1,6 @@
 /* Top level stuff for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2014 Free Software Foundation, Inc.
+   Copyright (C) 1986-2015 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
 #include "inferior.h"
 #include "symfile.h"
 #include "gdbcore.h"
-
-#include "exceptions.h"
 #include "getopt.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <ctype.h>
-
-#include <string.h>
 #include "event-loop.h"
 #include "ui-out.h"
 
 #include "filestuff.h"
 #include <signal.h>
 #include "event-top.h"
+#include "infrun.h"
 
 /* The selected interpreter.  This will be used as a set command
    variable, so it should always be malloc'ed - since
    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;
 
@@ -342,7 +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)
     {
@@ -365,15 +359,23 @@ typedef void (catch_command_errors_ftype) (char *, int);
 
 static int
 catch_command_errors (catch_command_errors_ftype *command,
-                     char *arg, int from_tty, return_mask mask)
+                     char *arg, int from_tty)
 {
-  volatile struct gdb_exception e;
-
-  TRY_CATCH (e, mask)
+  TRY
     {
+      int was_sync = sync_execution;
+
       command (arg, from_tty);
+
+      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.  */
@@ -384,33 +386,45 @@ typedef void (catch_command_errors_const_ftype) (const char *, int);
 
 static int
 catch_command_errors_const (catch_command_errors_const_ftype *command,
-                           const char *arg, int from_tty, return_mask mask)
+                           const char *arg, int from_tty)
 {
-  volatile struct gdb_exception e;
-
-  TRY_CATCH (e, mask)
+  TRY
     {
+      int was_sync = sync_execution;
+
       command (arg, from_tty);
+
+      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;
 }
 
-/* Arguments of --command option and its counterpart.  */
-typedef struct cmdarg {
-  /* Type of this option.  */
-  enum {
-    /* Option type -x.  */
-    CMDARG_FILE,
+/* Type of this option.  */
+enum cmdarg_kind
+{
+  /* Option type -x.  */
+  CMDARG_FILE,
 
-    /* Option type -ex.  */
-    CMDARG_COMMAND,
+  /* Option type -ex.  */
+  CMDARG_COMMAND,
 
-    /* Option type -ix.  */
-    CMDARG_INIT_FILE,
+  /* Option type -ix.  */
+  CMDARG_INIT_FILE,
     
-    /* Option type -iex.  */
-    CMDARG_INIT_COMMAND
-  } type;
+  /* Option type -iex.  */
+  CMDARG_INIT_COMMAND
+};
+
+/* Arguments of --command option and its counterpart.  */
+typedef struct cmdarg {
+  /* Type of this option.  */
+  enum cmdarg_kind type;
 
   /* Value of this option - filename or the GDB command itself.  String memory
      is not owned by this structure despite it is 'const'.  */
@@ -519,20 +533,24 @@ captured_main (void *data)
   gdb_program_name = xstrdup (argv[0]);
 #endif
 
+  /* Prefix warning messages with the command name.  */
+  warning_pre_print = xstrprintf ("%s: warning: ", gdb_program_name);
+
   if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
-    /* Don't use *_filtered or warning() (which relies on
-       current_target) until after initialize_all_files().  */
-    fprintf_unfiltered (gdb_stderr,
-                       _("%s: warning: error finding "
-                         "working directory: %s\n"),
-                        argv[0], safe_strerror (errno));
-    
+    perror_warning_with_name (_("error finding working directory"));
+
   current_directory = gdb_dirbuf;
 
   /* Set the sysroot path.  */
   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);
 
@@ -581,7 +599,6 @@ 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},
@@ -689,10 +706,7 @@ captured_main (void *data)
            xfree (interpreter_p);
            interpreter_p = xstrdup (INTERP_TUI);
 #else
-           fprintf_unfiltered (gdb_stderr,
-                               _("%s: TUI mode is not supported\n"),
-                               argv[0]);
-           exit (1);
+           error (_("%s: TUI mode is not supported"), gdb_program_name);
 #endif
            break;
          case OPT_WINDOWS:
@@ -758,13 +772,8 @@ captured_main (void *data)
            break;
          case 'D':
            if (optarg[0] == '\0')
-             {
-               fprintf_unfiltered (gdb_stderr,
-                                   _("%s: empty path for"
-                                     " `--data-directory'\n"),
-                                   argv[0]);
-               exit (1);
-             }
+             error (_("%s: empty path for `--data-directory'"),
+                    gdb_program_name);
            set_gdb_data_directory (optarg);
            gdb_datadir_provided = 1;
            break;
@@ -774,13 +783,8 @@ captured_main (void *data)
              extern int gdbtk_test (char *);
 
              if (!gdbtk_test (optarg))
-               {
-                 fprintf_unfiltered (gdb_stderr,
-                                     _("%s: unable to load "
-                                       "tclcommand file \"%s\""),
-                                     argv[0], optarg);
-                 exit (1);
-               }
+               error (_("%s: unable to load tclcommand file \"%s\""),
+                      gdb_program_name, optarg);
              break;
            }
          case 'y':
@@ -822,13 +826,8 @@ captured_main (void *data)
 
              i = strtol (optarg, &p, 0);
              if (i == 0 && p == optarg)
-
-               /* Don't use *_filtered or warning() (which relies on
-                  current_target) until after initialize_all_files().  */
-
-               fprintf_unfiltered
-                 (gdb_stderr,
-                  _("warning: could not set baud rate to `%s'.\n"), optarg);
+               warning (_("could not set baud rate to `%s'."),
+                        optarg);
              else
                baud_rate = i;
            }
@@ -840,24 +839,16 @@ captured_main (void *data)
 
              i = strtol (optarg, &p, 0);
              if (i == 0 && p == optarg)
-
-               /* Don't use *_filtered or warning() (which relies on
-                  current_target) until after initialize_all_files().  */
-
-               fprintf_unfiltered (gdb_stderr,
-                                   _("warning: could not set "
-                                     "timeout limit to `%s'.\n"), optarg);
+               warning (_("could not set timeout limit to `%s'."),
+                        optarg);
              else
                remote_timeout = i;
            }
            break;
 
          case '?':
-           fprintf_unfiltered (gdb_stderr,
-                               _("Use `%s --help' for a "
-                                 "complete list of options.\n"),
-                               argv[0]);
-           exit (1);
+           error (_("Use `%s --help' for a complete list of options."),
+                  gdb_program_name);
          }
       }
 
@@ -868,8 +859,7 @@ 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
@@ -880,13 +870,9 @@ captured_main (void *data)
         inferior.  The first one is the sym/exec file, and the rest
         are arguments.  */
       if (optind >= argc)
-       {
-         fprintf_unfiltered (gdb_stderr,
-                             _("%s: `--args' specified but "
-                               "no program specified\n"),
-                             argv[0]);
-         exit (1);
-       }
+       error (_("%s: `--args' specified but no program specified"),
+              gdb_program_name);
+
       symarg = argv[optind];
       execarg = argv[optind];
       ++optind;
@@ -986,12 +972,7 @@ captured_main (void *data)
       error (_("Interpreter `%s' unrecognized"), interpreter_p);
     /* Install it.  */
     if (!interp_set (interp, 1))
-      {
-        fprintf_unfiltered (gdb_stderr,
-                           "Interpreter `%s' failed to initialize.\n",
-                            interpreter_p);
-        exit (1);
-      }
+      error (_("Interpreter `%s' failed to initialize."), interpreter_p);
   }
 
   /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
@@ -1012,6 +993,7 @@ captured_main (void *data)
     }
 
   /* Set off error and warning messages with a blank line.  */
+  xfree (warning_pre_print);
   warning_pre_print = _("\nwarning: ");
 
   /* Read and execute the system-wide gdbinit file, if it exists.
@@ -1019,8 +1001,7 @@ captured_main (void *data)
      processed; it sets global parameters, which are independent of
      what file you are debugging or what directory you are in.  */
   if (system_gdbinit && !inhibit_gdbinit)
-    catch_command_errors_const (source_script, system_gdbinit,
-                               0, RETURN_MASK_ALL);
+    catch_command_errors_const (source_script, system_gdbinit, 0);
 
   /* Read and execute $HOME/.gdbinit file, if it exists.  This is done
      *before* all the command line arguments are processed; it sets
@@ -1028,8 +1009,7 @@ captured_main (void *data)
      debugging or what directory you are in.  */
 
   if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit)
-    catch_command_errors_const (source_script,
-                               home_gdbinit, 0, RETURN_MASK_ALL);
+    catch_command_errors_const (source_script, home_gdbinit, 0);
 
   /* Process '-ix' and '-iex' options early.  */
   for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++)
@@ -1037,22 +1017,22 @@ captured_main (void *data)
     {
       case CMDARG_INIT_FILE:
         catch_command_errors_const (source_script, cmdarg_p->string,
-                                   !batch_flag, RETURN_MASK_ALL);
+                                   !batch_flag);
        break;
       case CMDARG_INIT_COMMAND:
         catch_command_errors (execute_command, cmdarg_p->string,
-                             !batch_flag, RETURN_MASK_ALL);
+                             !batch_flag);
        break;
     }
 
   /* Now perform all the actions indicated by the arguments.  */
   if (cdarg != NULL)
     {
-      catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL);
+      catch_command_errors (cd_command, cdarg, 0);
     }
 
   for (i = 0; i < ndir; i++)
-    catch_command_errors (directory_switch, dirarg[i], 0, RETURN_MASK_ALL);
+    catch_command_errors (directory_switch, dirarg[i], 0);
   xfree (dirarg);
 
   /* Skip auto-loading section-specified scripts until we've sourced
@@ -1069,18 +1049,18 @@ captured_main (void *data)
          open it, better only print one error message.
          catch_command_errors returns non-zero on success!  */
       if (catch_command_errors_const (exec_file_attach, execarg,
-                                     !batch_flag, RETURN_MASK_ALL))
+                                     !batch_flag))
        catch_command_errors_const (symbol_file_add_main, symarg,
-                                   !batch_flag, RETURN_MASK_ALL);
+                                   !batch_flag);
     }
   else
     {
       if (execarg != NULL)
        catch_command_errors_const (exec_file_attach, execarg,
-                                   !batch_flag, RETURN_MASK_ALL);
+                                   !batch_flag);
       if (symarg != NULL)
        catch_command_errors_const (symbol_file_add_main, symarg,
-                                   !batch_flag, RETURN_MASK_ALL);
+                                   !batch_flag);
     }
 
   if (corearg && pidarg)
@@ -1088,11 +1068,9 @@ captured_main (void *data)
             "a core file at the same time."));
 
   if (corearg != NULL)
-    catch_command_errors (core_file_command, corearg,
-                         !batch_flag, RETURN_MASK_ALL);
+    catch_command_errors (core_file_command, corearg, !batch_flag);
   else if (pidarg != NULL)
-    catch_command_errors (attach_command, pidarg,
-                         !batch_flag, RETURN_MASK_ALL);
+    catch_command_errors (attach_command, pidarg, !batch_flag);
   else if (pid_or_core_arg)
     {
       /* The user specified 'gdb program pid' or gdb program core'.
@@ -1102,13 +1080,13 @@ captured_main (void *data)
       if (isdigit (pid_or_core_arg[0]))
        {
          if (catch_command_errors (attach_command, pid_or_core_arg,
-                                   !batch_flag, RETURN_MASK_ALL) == 0)
+                                   !batch_flag) == 0)
            catch_command_errors (core_file_command, pid_or_core_arg,
-                                 !batch_flag, RETURN_MASK_ALL);
+                                 !batch_flag);
        }
       else /* Can't be a pid, better be a corefile.  */
        catch_command_errors (core_file_command, pid_or_core_arg,
-                             !batch_flag, RETURN_MASK_ALL);
+                             !batch_flag);
     }
 
   if (ttyarg != NULL)
@@ -1131,8 +1109,7 @@ captured_main (void *data)
        {
          auto_load_local_gdbinit_loaded = 1;
 
-         catch_command_errors_const (source_script, local_gdbinit, 0,
-                                     RETURN_MASK_ALL);
+         catch_command_errors_const (source_script, local_gdbinit, 0);
        }
     }
 
@@ -1150,11 +1127,11 @@ captured_main (void *data)
     {
       case CMDARG_FILE:
         catch_command_errors_const (source_script, cmdarg_p->string,
-                                   !batch_flag, RETURN_MASK_ALL);
+                                   !batch_flag);
        break;
       case CMDARG_COMMAND:
         catch_command_errors (execute_command, cmdarg_p->string,
-                             !batch_flag, RETURN_MASK_ALL);
+                             !batch_flag);
        break;
     }
 
@@ -1255,7 +1232,6 @@ 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);
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