Make GDB wait for events after handling target File-I/O

[deliverable/binutils-gdb.git] / gdb / ada-typeprint.c

diff --git a/gdb/ada-typeprint.c b/gdb/ada-typeprint.c
index 09ff744409962da5cf46e5b253d01f559620d471..4164bb2c8442b1f72fa4b372955e2c7e0c8a7db3 100644 (file)
--- a/gdb/ada-typeprint.c
+++ b/gdb/ada-typeprint.c
@@ -1,5 +1,5 @@
 /* Support for printing Ada types 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.
 
@@ -32,10 +32,7 @@
 #include "c-lang.h"
 #include "typeprint.h"
 #include "ada-lang.h"
-
 #include <ctype.h>
-#include <string.h>
-#include <errno.h>
 
 static int print_selected_record_field_types (struct type *, struct type *,
                                              int, int,
@@ -67,7 +64,7 @@ decoded_type_name (struct type *type)
       if (name_buffer == NULL || name_buffer_len <= strlen (raw_name))
        {
          name_buffer_len = 16 + 2 * strlen (raw_name);
-         name_buffer = xrealloc (name_buffer, name_buffer_len);
+         name_buffer = (char *) xrealloc (name_buffer, name_buffer_len);
        }
       strcpy (name_buffer, raw_name);
 
@@ -118,6 +115,9 @@ type_is_full_subrange_of_target_type (struct type *type)
   if (subtype == NULL)
     return 0;
 
+  if (is_dynamic_type (type))
+    return 0;
+
   if (ada_discrete_type_low_bound (type)
       != ada_discrete_type_low_bound (subtype))
     return 0;
@@ -159,15 +159,36 @@ print_range (struct type *type, struct ui_file *stream,
     case TYPE_CODE_ENUM:
       {
        struct type *target_type;
+       LONGEST lo = 0, hi = 0; /* init for gcc -Wall */
+       int got_error = 0;
 
        target_type = TYPE_TARGET_TYPE (type);
        if (target_type == NULL)
          target_type = type;
-       ada_print_scalar (target_type, ada_discrete_type_low_bound (type),
-                         stream);
-       fprintf_filtered (stream, " .. ");
-       ada_print_scalar (target_type, ada_discrete_type_high_bound (type),
-                         stream);
+
+       TRY
+         {
+           lo = ada_discrete_type_low_bound (type);
+           hi = ada_discrete_type_high_bound (type);
+         }
+       CATCH (e, RETURN_MASK_ERROR)
+         {
+           /* This can happen when the range is dynamic.  Sometimes,
+              resolving dynamic property values requires us to have
+              access to an actual object, which is not available
+              when the user is using the "ptype" command on a type.
+              Print the range as an unbounded range.  */
+           fprintf_filtered (stream, "<>");
+           got_error = 1;
+         }
+       END_CATCH
+
+       if (!got_error)
+         {
+           ada_print_scalar (target_type, lo, stream);
+           fprintf_filtered (stream, " .. ");
+           ada_print_scalar (target_type, hi, stream);
+         }
       }
       break;
     default:
@@ -182,7 +203,7 @@ print_range (struct type *type, struct ui_file *stream,
    set *N past the bound and its delimiter, if any.  */
 
 static void
-print_range_bound (struct type *type, char *bounds, int *n,
+print_range_bound (struct type *type, const char *bounds, int *n,
                   struct ui_file *stream)
 {
   LONGEST B;
@@ -209,8 +230,8 @@ print_range_bound (struct type *type, char *bounds, int *n,
   else
     {
       int bound_len;
-      char *bound = bounds + *n;
-      char *pend;
+      const char *bound = bounds + *n;
+      const char *pend;
 
       pend = strstr (bound, "__");
       if (pend == NULL)
@@ -279,7 +300,7 @@ print_range_type (struct type *raw_type, struct ui_file *stream,
   else
     {
       int prefix_len = subtype_info - name;
-      char *bounds_str;
+      const char *bounds_str;
       int n;
 
       subtype_info += 5;
@@ -365,6 +386,7 @@ print_array_type (struct type *type, struct ui_file *stream, int show,
 {
   int bitsize;
   int n_indices;
+  struct type *elt_type = NULL;
 
   if (ada_is_constrained_packed_array_type (type))
     type = ada_coerce_to_simple_array_type (type);
@@ -427,11 +449,15 @@ print_array_type (struct type *type, struct ui_file *stream, int show,
        fprintf_filtered (stream, "%s<>", i == i0 ? "" : ", ");
     }
 
+  elt_type = ada_array_element_type (type, n_indices);
   fprintf_filtered (stream, ") of ");
   wrap_here ("");
-  ada_print_type (ada_array_element_type (type, n_indices), "", stream,
-                 show == 0 ? 0 : show - 1, level + 1, flags);
-  if (bitsize > 0)
+  ada_print_type (elt_type, "", stream, show == 0 ? 0 : show - 1, level + 1,
+                 flags);
+  /* Arrays with variable-length elements are never bit-packed in practice but
+     compilers have to describe their stride so that we can properly fetch
+     individual elements.  Do not say the array is packed in this case.  */
+  if (bitsize > 0 && !is_dynamic_type (elt_type))
     fprintf_filtered (stream, " <packed: %d-bit elements>", bitsize);
 }