gdbserver/linux-low: turn '{collect, supply}_ptrace_register' into methods
[deliverable/binutils-gdb.git] / gdb / f-valprint.c
index 4234447bbb6a9c40c7cec9f346317acf9a1d95b1..36328c796ca3e58ff1b893a581dc081bf13c75e6 100644 (file)
@@ -1,6 +1,6 @@
 /* Support for printing Fortran values for GDB, the GNU debugger.
 
-   Copyright (C) 1993-2017 Free Software Foundation, Inc.
+   Copyright (C) 1993-2020 Free Software Foundation, Inc.
 
    Contributed by Motorola.  Adapted from the C definitions by Farooq Butt
    (fmbutt@engage.sps.mot.com), additionally worked over by Stan Shebs.
@@ -33,9 +33,9 @@
 #include "command.h"
 #include "block.h"
 #include "dictionary.h"
+#include "cli/cli-style.h"
+#include "gdbarch.h"
 
-extern void _initialize_f_valprint (void);
-static void info_common_command (char *, int);
 static void f77_get_dynamic_length_of_aggregate (struct type *);
 
 int f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2];
@@ -43,7 +43,7 @@ int f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2];
 /* Array which holds offsets to be applied to get a row's elements
    for a given array.  Array also holds the size of each subarray.  */
 
-int
+LONGEST
 f77_get_lowerbound (struct type *type)
 {
   if (TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type))
@@ -52,7 +52,7 @@ f77_get_lowerbound (struct type *type)
   return TYPE_ARRAY_LOWER_BOUND_VALUE (type);
 }
 
-int
+LONGEST
 f77_get_upperbound (struct type *type)
 {
   if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
@@ -115,13 +115,18 @@ f77_print_array_1 (int nss, int ndimensions, struct type *type,
   struct type *range_type = TYPE_INDEX_TYPE (check_typedef (type));
   CORE_ADDR addr = address + embedded_offset;
   LONGEST lowerbound, upperbound;
-  int i;
+  LONGEST i;
 
   get_discrete_bounds (range_type, &lowerbound, &upperbound);
 
   if (nss != ndimensions)
     {
-      size_t dim_size = TYPE_LENGTH (TYPE_TARGET_TYPE (type));
+      struct gdbarch *gdbarch = get_type_arch (type);
+      size_t dim_size = type_length_units (TYPE_TARGET_TYPE (type));
+      int unit_size = gdbarch_addressable_memory_unit_size (gdbarch);
+      size_t byte_stride = TYPE_ARRAY_BIT_STRIDE (type) / (unit_size * 8);
+      if (byte_stride == 0)
+       byte_stride = dim_size;
       size_t offs = 0;
 
       for (i = lowerbound;
@@ -138,7 +143,7 @@ f77_print_array_1 (int nss, int ndimensions, struct type *type,
                             value_embedded_offset (subarray),
                             value_address (subarray),
                             stream, recurse, subarray, options, elts);
-         offs += dim_size;
+         offs += byte_stride;
          fprintf_filtered (stream, ") ");
        }
       if (*elts >= options->print_max && i < upperbound)
@@ -151,10 +156,7 @@ f77_print_array_1 (int nss, int ndimensions, struct type *type,
        {
          struct value *elt = value_subscript ((struct value *)val, i);
 
-         val_print (value_type (elt),
-                    value_embedded_offset (elt),
-                    value_address (elt), stream, recurse,
-                    elt, options, current_language);
+         common_val_print (elt, stream, recurse, options, current_language);
 
          if (i != upperbound)
            fprintf_filtered (stream, ", ");
@@ -201,44 +203,40 @@ static const struct generic_val_print_decorations f_decorations =
   ")",
   ".TRUE.",
   ".FALSE.",
-  "VOID",
+  "void",
   "{",
   "}"
 };
 
-/* See val_print for a description of the various parameters of this
-   function; they are identical.  */
+/* See f-lang.h.  */
 
 void
-f_val_print (struct type *type, int embedded_offset,
-            CORE_ADDR address, struct ui_file *stream, int recurse,
-            struct value *original_value,
-            const struct value_print_options *options)
+f_value_print_innner (struct value *val, struct ui_file *stream, int recurse,
+                     const struct value_print_options *options)
 {
+  struct type *type = check_typedef (value_type (val));
   struct gdbarch *gdbarch = get_type_arch (type);
-  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int printed_field = 0; /* Number of fields printed.  */
   struct type *elttype;
   CORE_ADDR addr;
   int index;
-  const gdb_byte *valaddr =value_contents_for_printing (original_value);
+  const gdb_byte *valaddr = value_contents_for_printing (val);
+  const CORE_ADDR address = value_address (val);
 
-  type = check_typedef (type);
   switch (TYPE_CODE (type))
     {
     case TYPE_CODE_STRING:
       f77_get_dynamic_length_of_aggregate (type);
       LA_PRINT_STRING (stream, builtin_type (gdbarch)->builtin_char,
-                      valaddr + embedded_offset,
-                      TYPE_LENGTH (type), NULL, 0, options);
+                      valaddr, TYPE_LENGTH (type), NULL, 0, options);
       break;
 
     case TYPE_CODE_ARRAY:
       if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_CHAR)
        {
          fprintf_filtered (stream, "(");
-         f77_print_array (type, valaddr, embedded_offset,
-                          address, stream, recurse, original_value, options);
+         f77_print_array (type, valaddr, 0,
+                          address, stream, recurse, val, options);
          fprintf_filtered (stream, ")");
        }
       else
@@ -246,8 +244,7 @@ f_val_print (struct type *type, int embedded_offset,
          struct type *ch_type = TYPE_TARGET_TYPE (type);
 
          f77_get_dynamic_length_of_aggregate (type);
-         LA_PRINT_STRING (stream, ch_type,
-                          valaddr + embedded_offset,
+         LA_PRINT_STRING (stream, ch_type, valaddr,
                           TYPE_LENGTH (type) / TYPE_LENGTH (ch_type),
                           NULL, 0, options);
        }
@@ -256,15 +253,14 @@ f_val_print (struct type *type, int embedded_offset,
     case TYPE_CODE_PTR:
       if (options->format && options->format != 's')
        {
-         val_print_scalar_formatted (type, embedded_offset,
-                                     original_value, options, 0, stream);
+         value_print_scalar_formatted (val, options, 0, stream);
          break;
        }
       else
        {
          int want_space = 0;
 
-         addr = unpack_pointer (type, valaddr + embedded_offset);
+         addr = unpack_pointer (type, valaddr);
          elttype = check_typedef (TYPE_TARGET_TYPE (type));
 
          if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
@@ -306,26 +302,10 @@ f_val_print (struct type *type, int embedded_offset,
 
          opts.format = (options->format ? options->format
                         : options->output_format);
-         val_print_scalar_formatted (type, embedded_offset,
-                                     original_value, &opts, 0, stream);
+         value_print_scalar_formatted (val, &opts, 0, stream);
        }
       else
-       {
-         val_print_scalar_formatted (type, embedded_offset,
-                                     original_value, options, 0, stream);
-         /* C and C++ has no single byte int type, char is used instead.
-            Since we don't know whether the value is really intended to
-            be used as an integer or a character, print the character
-            equivalent as well.  */
-         if (TYPE_LENGTH (type) == 1)
-           {
-             LONGEST c;
-
-             fputs_filtered (" ", stream);
-             c = unpack_long (type, valaddr + embedded_offset);
-             LA_PRINT_CHAR ((unsigned char) c, type, stream);
-           }
-       }
+       value_print_scalar_formatted (val, options, 0, stream);
       break;
 
     case TYPE_CODE_STRUCT:
@@ -335,8 +315,7 @@ f_val_print (struct type *type, int embedded_offset,
       fprintf_filtered (stream, "( ");
       for (index = 0; index < TYPE_NFIELDS (type); index++)
         {
-         struct value *field = value_field
-           ((struct value *)original_value, index);
+         struct value *field = value_field (val, index);
 
          struct type *field_type = check_typedef (TYPE_FIELD_TYPE (type, index));
 
@@ -351,14 +330,13 @@ f_val_print (struct type *type, int embedded_offset,
              field_name = TYPE_FIELD_NAME (type, index);
              if (field_name != NULL)
                {
-                 fputs_filtered (field_name, stream);
+                 fputs_styled (field_name, variable_name_style.style (),
+                               stream);
                  fputs_filtered (" = ", stream);
                }
 
-             val_print (value_type (field),
-                        value_embedded_offset (field),
-                        value_address (field), stream, recurse + 1,
-                        field, options, current_language);
+             common_val_print (field, stream, recurse + 1,
+                               options, current_language);
 
              ++printed_field;
            }
@@ -366,6 +344,27 @@ f_val_print (struct type *type, int embedded_offset,
       fprintf_filtered (stream, " )");
       break;     
 
+    case TYPE_CODE_BOOL:
+      if (options->format || options->output_format)
+       {
+         struct value_print_options opts = *options;
+         opts.format = (options->format ? options->format
+                        : options->output_format);
+         value_print_scalar_formatted (val, &opts, 0, stream);
+       }
+      else
+       {
+         LONGEST longval = value_as_long (val);
+         /* The Fortran standard doesn't specify how logical types are
+            represented.  Different compilers use different non zero
+            values to represent logical true.  */
+         if (longval == 0)
+           fputs_filtered (f_decorations.false_name, stream);
+         else
+           fputs_filtered (f_decorations.true_name, stream);
+       }
+      break;
+
     case TYPE_CODE_REF:
     case TYPE_CODE_FUNC:
     case TYPE_CODE_FLAGS:
@@ -375,15 +374,11 @@ f_val_print (struct type *type, int embedded_offset,
     case TYPE_CODE_RANGE:
     case TYPE_CODE_UNDEF:
     case TYPE_CODE_COMPLEX:
-    case TYPE_CODE_BOOL:
     case TYPE_CODE_CHAR:
     default:
-      generic_val_print (type, embedded_offset, address,
-                        stream, recurse, original_value, options,
-                        &f_decorations);
+      generic_value_print (val, stream, recurse, options, &f_decorations);
       break;
     }
-  gdb_flush (stream);
 }
 
 static void
@@ -392,7 +387,6 @@ info_common_command_for_block (const struct block *block, const char *comname,
 {
   struct block_iterator iter;
   struct symbol *sym;
-  const char *name;
   struct value_print_options opts;
 
   get_user_print_options (&opts);
@@ -405,17 +399,17 @@ info_common_command_for_block (const struct block *block, const char *comname,
 
        gdb_assert (SYMBOL_CLASS (sym) == LOC_COMMON_BLOCK);
 
-       if (comname && (!SYMBOL_LINKAGE_NAME (sym)
-                       || strcmp (comname, SYMBOL_LINKAGE_NAME (sym)) != 0))
+       if (comname && (!sym->linkage_name ()
+                       || strcmp (comname, sym->linkage_name ()) != 0))
          continue;
 
        if (*any_printed)
          putchar_filtered ('\n');
        else
          *any_printed = 1;
-       if (SYMBOL_PRINT_NAME (sym))
+       if (sym->print_name ())
          printf_filtered (_("Contents of F77 COMMON block '%s':\n"),
-                          SYMBOL_PRINT_NAME (sym));
+                          sym->print_name ());
        else
          printf_filtered (_("Contents of blank COMMON block:\n"));
        
@@ -424,19 +418,20 @@ info_common_command_for_block (const struct block *block, const char *comname,
            struct value *val = NULL;
 
            printf_filtered ("%s = ",
-                            SYMBOL_PRINT_NAME (common->contents[index]));
+                            common->contents[index]->print_name ());
 
-           TRY
+           try
              {
                val = value_of_variable (common->contents[index], block);
                value_print (val, gdb_stdout, &opts);
              }
 
-           CATCH (except, RETURN_MASK_ERROR)
+           catch (const gdb_exception_error &except)
              {
-               printf_filtered ("<error reading variable: %s>", except.message);
+               fprintf_styled (gdb_stdout, metadata_style.style (),
+                               "<error reading variable: %s>",
+                               except.what ());
              }
-           END_CATCH
 
            putchar_filtered ('\n');
          }
@@ -448,7 +443,7 @@ info_common_command_for_block (const struct block *block, const char *comname,
    given name.  */
 
 static void
-info_common_command (char *comname, int from_tty)
+info_common_command (const char *comname, int from_tty)
 {
   struct frame_info *fi;
   const struct block *block;
@@ -490,8 +485,9 @@ info_common_command (char *comname, int from_tty)
     }
 }
 
+void _initialize_f_valprint ();
 void
-_initialize_f_valprint (void)
+_initialize_f_valprint ()
 {
   add_info ("common", info_common_command,
            _("Print out the values contained in a Fortran COMMON block."));
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