@@ -1805,7 +1805,9 @@ static void read_signatured_type (struct signatured_type *);
static int attr_to_dynamic_prop (const struct attribute *attr,
struct die_info *die, struct dwarf2_cu *cu,
- struct dynamic_prop *prop);
+ struct dynamic_prop *prop,
+ const gdb_byte *additional_data,
+ int additional_data_size);
/* memory allocation interface */
@@ -13826,7 +13828,7 @@ read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
{
newobj->static_link
= XOBNEW (&objfile->objfile_obstack, struct dynamic_prop);
- attr_to_dynamic_prop (attr, die, cu, newobj->static_link);
+ attr_to_dynamic_prop (attr, die, cu, newobj->static_link, nullptr, 0);
}
cu->list_in_scope = cu->builder->get_local_symbols ();
@@ -16584,7 +16586,8 @@ read_array_type (struct die_info *die, struct dwarf2_cu *cu)
byte_stride_prop
= (struct dynamic_prop *) alloca (sizeof (struct dynamic_prop));
- stride_ok = attr_to_dynamic_prop (attr, die, cu, byte_stride_prop);
+ stride_ok = attr_to_dynamic_prop (attr, die, cu, byte_stride_prop,
+ nullptr, 0);
if (!stride_ok)
{
complaint (_("unable to read array DW_AT_byte_stride "
@@ -17343,31 +17346,90 @@ read_tag_string_type (struct die_info *die, struct dwarf2_cu *cu)
{
struct objfile *objfile = cu->per_cu->dwarf2_per_objfile->objfile;
struct gdbarch *gdbarch = get_objfile_arch (objfile);
- struct type *type, *range_type, *index_type, *char_type;
+ struct type *type, *char_type;
struct attribute *attr;
- unsigned int length;
+ unsigned int length = UINT_MAX;
+
+ struct type *index_type = objfile_type (objfile)->builtin_int;
+ struct type *range_type = create_static_range_type (nullptr, index_type, 1, length);
+ /* If DW_AT_string_length is defined, the length is stored in memory. */
attr = dwarf2_attr (die, DW_AT_string_length, cu);
if (attr)
{
- length = DW_UNSND (attr);
+ if (attr_form_is_block (attr))
+ {
+ struct attribute *byte_size = dwarf2_attr (die, DW_AT_byte_size, cu);
+ struct attribute *bit_size = dwarf2_attr (die, DW_AT_bit_size, cu);
+ struct dynamic_prop high;
+
+ /* DW_AT_byte_size should never occur in combination with
+ DW_AT_bit_size. */
+ if (byte_size != nullptr && bit_size != nullptr)
+ complaint (_("DW_AT_byte_size AND "
+ "DW_AT_bit_size found together at the same time."));
+
+ /* If DW_AT_string_length AND DW_AT_byte_size exist together,
+ DW_AT_byte_size describes the number of bytes that should be read
+ from the length memory location. */
+ if (byte_size != nullptr)
+ {
+ /* Build new dwarf2_locexpr_baton structure with additions to the
+ data attribute, to reflect DWARF specialities to get address
+ sizes. */
+ const gdb_byte append_ops[] =
+ {
+ /* DW_OP_deref_size: size of an address on the target machine
+ (bytes), where the size will be specified by the next
+ operand. */
+ DW_OP_deref_size,
+ /* Operand for DW_OP_deref_size. */
+ gdb_byte (DW_UNSND (byte_size))
+ };
+
+ if (!attr_to_dynamic_prop (attr, die, cu, &high, append_ops,
+ ARRAY_SIZE(append_ops)))
+ complaint (_("Could not parse DW_AT_byte_size"));
+ }
+ else if (bit_size != NULL)
+ complaint (_("DW_AT_string_length AND "
+ "DW_AT_bit_size found but not supported yet."));
+ /* If DW_AT_string_length WITHOUT DW_AT_byte_size exist, the default
+ is the address size of the target machine. */
+ else
+ {
+ const gdb_byte append_ops[] = { DW_OP_deref };
+
+ if (!attr_to_dynamic_prop (attr, die, cu, &high, append_ops,
+ ARRAY_SIZE (append_ops)))
+ complaint (_("Could not parse DW_AT_string_length"));
+ }
+
+ TYPE_RANGE_DATA (range_type)->high = high;
+ }
+ else
+ {
+ TYPE_HIGH_BOUND (range_type) = DW_UNSND (attr);
+ TYPE_HIGH_BOUND_KIND (range_type) = PROP_CONST;
+ }
}
else
{
- /* Check for the DW_AT_byte_size attribute. */
+ /* Check for the DW_AT_byte_size attribute, which represents the length
+ in this case. */
attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
- {
- length = DW_UNSND (attr);
- }
+ {
+ TYPE_HIGH_BOUND (range_type) = DW_UNSND (attr);
+ TYPE_HIGH_BOUND_KIND (range_type) = PROP_CONST;
+ }
else
- {
- length = 1;
- }
+ {
+ TYPE_HIGH_BOUND (range_type) = 1;
+ TYPE_HIGH_BOUND_KIND (range_type) = PROP_CONST;
+ }
}
- index_type = objfile_type (objfile)->builtin_int;
- range_type = create_static_range_type (NULL, index_type, 1, length);
char_type = language_string_char_type (cu->language_defn, gdbarch);
type = create_string_type (NULL, char_type, range_type);
@@ -17735,7 +17797,8 @@ read_base_type (struct die_info *die, struct dwarf2_cu *cu)
static int
attr_to_dynamic_prop (const struct attribute *attr, struct die_info *die,
- struct dwarf2_cu *cu, struct dynamic_prop *prop)
+ struct dwarf2_cu *cu, struct dynamic_prop *prop,
+ const gdb_byte *additional_data, int additional_data_size)
{
struct dwarf2_property_baton *baton;
struct obstack *obstack
@@ -17749,11 +17812,26 @@ attr_to_dynamic_prop (const struct attribute *attr, struct die_info *die,
baton = XOBNEW (obstack, struct dwarf2_property_baton);
baton->referenced_type = NULL;
baton->locexpr.per_cu = cu->per_cu;
- baton->locexpr.size = DW_BLOCK (attr)->size;
- baton->locexpr.data = DW_BLOCK (attr)->data;
+
+ if (additional_data != nullptr && additional_data_size > 0)
+ {
+ gdb_byte *data = (gdb_byte *) obstack_alloc (obstack,
+ DW_BLOCK (attr)->size + additional_data_size);
+ memcpy (data, DW_BLOCK (attr)->data, DW_BLOCK (attr)->size);
+ memcpy (data + DW_BLOCK (attr)->size, additional_data,
+ additional_data_size);
+
+ baton->locexpr.data = data;
+ baton->locexpr.size = DW_BLOCK (attr)->size + additional_data_size;
+ }
+ else
+ {
+ baton->locexpr.data = DW_BLOCK (attr)->data;
+ baton->locexpr.size = DW_BLOCK (attr)->size;
+ }
+
prop->data.baton = baton;
prop->kind = PROP_LOCEXPR;
- gdb_assert (prop->data.baton != NULL);
}
else if (attr_form_is_ref (attr))
{
@@ -17786,11 +17864,28 @@ attr_to_dynamic_prop (const struct attribute *attr, struct die_info *die,
baton = XOBNEW (obstack, struct dwarf2_property_baton);
baton->referenced_type = die_type (target_die, target_cu);
baton->locexpr.per_cu = cu->per_cu;
- baton->locexpr.size = DW_BLOCK (target_attr)->size;
- baton->locexpr.data = DW_BLOCK (target_attr)->data;
+
+ if (additional_data != NULL && additional_data_size > 0)
+ {
+ gdb_byte *data = (gdb_byte *) obstack_alloc (obstack,
+ DW_BLOCK (target_attr)->size + additional_data_size);
+ memcpy (data, DW_BLOCK (target_attr)->data,
+ DW_BLOCK (target_attr)->size);
+ memcpy (data + DW_BLOCK (target_attr)->size,
+ additional_data, additional_data_size);
+
+ baton->locexpr.data = data;
+ baton->locexpr.size = (DW_BLOCK (target_attr)->size
+ + additional_data_size);
+ }
+ else
+ {
+ baton->locexpr.data = DW_BLOCK (target_attr)->data;
+ baton->locexpr.size = DW_BLOCK (target_attr)->size;
+ }
+
prop->data.baton = baton;
prop->kind = PROP_LOCEXPR;
- gdb_assert (prop->data.baton != NULL);
}
else
{
@@ -17898,7 +17993,7 @@ read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_byte_stride, cu);
if (attr)
- if (!attr_to_dynamic_prop (attr, die, cu, &stride))
+ if (!attr_to_dynamic_prop (attr, die, cu, &stride, nullptr, 0))
complaint (_("Missing DW_AT_byte_stride "
"- DIE at 0x%s [in module %s]"),
sect_offset_str (die->sect_off),
@@ -17906,7 +18001,7 @@ read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_lower_bound, cu);
if (attr)
- attr_to_dynamic_prop (attr, die, cu, &low);
+ attr_to_dynamic_prop (attr, die, cu, &low, nullptr, 0);
else if (!low_default_is_valid)
complaint (_("Missing DW_AT_lower_bound "
"- DIE at %s [in module %s]"),
@@ -17915,10 +18010,10 @@ read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
struct attribute *attr_ub, *attr_count;
attr = attr_ub = dwarf2_attr (die, DW_AT_upper_bound, cu);
- if (!attr_to_dynamic_prop (attr, die, cu, &high))
+ if (!attr_to_dynamic_prop (attr, die, cu, &high, nullptr, 0))
{
attr = attr_count = dwarf2_attr (die, DW_AT_count, cu);
- if (attr_to_dynamic_prop (attr, die, cu, &high))
+ if (attr_to_dynamic_prop (attr, die, cu, &high, nullptr, 0))
{
/* If bounds are constant do the final calculation here. */
if (low.kind == PROP_CONST && high.kind == PROP_CONST)
@@ -25510,7 +25605,7 @@ set_die_type (struct die_info *die, struct type *type, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_allocated, cu);
if (attr_form_is_block (attr))
{
- if (attr_to_dynamic_prop (attr, die, cu, &prop))
+ if (attr_to_dynamic_prop (attr, die, cu, &prop, nullptr, 0))
add_dyn_prop (DYN_PROP_ALLOCATED, prop, type);
}
else if (attr != NULL)
@@ -25524,7 +25619,7 @@ set_die_type (struct die_info *die, struct type *type, struct dwarf2_cu *cu)
attr = dwarf2_attr (die, DW_AT_associated, cu);
if (attr_form_is_block (attr))
{
- if (attr_to_dynamic_prop (attr, die, cu, &prop))
+ if (attr_to_dynamic_prop (attr, die, cu, &prop, nullptr, 0))
add_dyn_prop (DYN_PROP_ASSOCIATED, prop, type);
}
else if (attr != NULL)
@@ -25536,7 +25631,7 @@ set_die_type (struct die_info *die, struct type *type, struct dwarf2_cu *cu)
/* Read DW_AT_data_location and set in type. */
attr = dwarf2_attr (die, DW_AT_data_location, cu);
- if (attr_to_dynamic_prop (attr, die, cu, &prop))
+ if (attr_to_dynamic_prop (attr, die, cu, &prop, nullptr, 0))
add_dyn_prop (DYN_PROP_DATA_LOCATION, prop, type);
if (dwarf2_per_objfile->die_type_hash == NULL)
@@ -1948,6 +1948,7 @@ is_dynamic_type_internal (struct type *type, int top_level)
}
case TYPE_CODE_ARRAY:
+ case TYPE_CODE_STRING:
{
gdb_assert (TYPE_NFIELDS (type) == 1);
@@ -2065,7 +2066,8 @@ resolve_dynamic_array (struct type *type,
struct dynamic_prop *prop;
unsigned int bit_stride = 0;
- gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY);
+ gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY
+ || TYPE_CODE (type) == TYPE_CODE_STRING);
type = copy_type (type);
@@ -2090,7 +2092,8 @@ resolve_dynamic_array (struct type *type,
ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type));
- if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY)
+ if (ary_dim != NULL && (TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY
+ || TYPE_CODE (ary_dim) == TYPE_CODE_STRING))
elt_type = resolve_dynamic_array (ary_dim, addr_stack);
else
elt_type = TYPE_TARGET_TYPE (type);
@@ -2118,8 +2121,11 @@ resolve_dynamic_array (struct type *type,
else
bit_stride = TYPE_FIELD_BITSIZE (type, 0);
- return create_array_type_with_stride (type, elt_type, range_type, NULL,
- bit_stride);
+ if (TYPE_CODE (type) == TYPE_CODE_STRING)
+ return create_string_type (type, elt_type, range_type);
+ else
+ return create_array_type_with_stride (type, elt_type, range_type,
+ nullptr, bit_stride);
}
/* Resolve dynamic bounds of members of the union TYPE to static
@@ -2324,6 +2330,7 @@ resolve_dynamic_type_internal (struct type *type,
break;
case TYPE_CODE_ARRAY:
+ case TYPE_CODE_STRING:
resolved_type = resolve_dynamic_array (type, addr_stack);
break;
new file mode 100644
@@ -0,0 +1,100 @@
+# Copyright 2018 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+standard_testfile ".f90"
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} \
+ {debug f90 quiet}] } {
+ return -1
+}
+
+if ![runto_main] {
+ untested "could not run to main"
+ return -1
+}
+
+gdb_breakpoint [gdb_get_line_number "var_char-allocated-1"]
+gdb_continue_to_breakpoint "var_char-allocated-1"
+set test "whatis var_char first time"
+gdb_test_multiple "whatis var_char" $test {
+ -re "type = PTR TO -> \\( character\\*10 \\)\r\n$gdb_prompt $" {
+ pass $test
+ }
+ -re "type = character\\*10\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+set test "ptype var_char first time"
+gdb_test_multiple "ptype var_char" $test {
+ -re "type = PTR TO -> \\( character\\*10 \\)\r\n$gdb_prompt $" {
+ pass $test
+ }
+ -re "type = character\\*10\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+
+
+gdb_test "next" "\\d+.*var_char = 'foo'.*" \
+ "next to allocation status of var_char"
+gdb_test "print l" " = \\.TRUE\\." "print allocation status first time"
+
+
+gdb_breakpoint [gdb_get_line_number "var_char-filled-1"]
+gdb_continue_to_breakpoint "var_char-filled-1"
+set test "print var_char, var_char-filled-1"
+gdb_test_multiple "print var_char" $test {
+ -re "= \\(PTR TO -> \\( character\\*3 \\)\\) $hex\r\n$gdb_prompt $" {
+ gdb_test "print *var_char" "= 'foo'" "print *var_char, var_char-filled-1"
+ pass $test
+ }
+ -re "= 'foo'\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+set test "ptype var_char, var_char-filled-1"
+gdb_test_multiple "ptype var_char" $test {
+ -re "type = PTR TO -> \\( character\\*3 \\)\r\n$gdb_prompt $" {
+ pass $test
+ }
+ -re "type = character\\*3\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+gdb_test "print var_char(1)" " = 102" "print var_char(1)"
+gdb_test "print var_char(3)" " = 111" "print var_char(3)"
+
+
+gdb_breakpoint [gdb_get_line_number "var_char-filled-2"]
+gdb_continue_to_breakpoint "var_char-filled-2"
+set test "print var_char, var_char-filled-2"
+gdb_test_multiple "print var_char" $test {
+ -re "= \\(PTR TO -> \\( character\\*6 \\)\\) $hex\r\n$gdb_prompt $" {
+ gdb_test "print *var_char" "= 'foobar'" "print *var_char, var_char-filled-2"
+ pass $test
+ }
+ -re "= 'foobar'\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+set test "ptype var_char, var_char-filled-2"
+gdb_test_multiple "ptype var_char" $test {
+ -re "type = PTR TO -> \\( character\\*6 \\)\r\n$gdb_prompt $" {
+ pass $test
+ }
+ -re "type = character\\*6\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
new file mode 100644
@@ -0,0 +1,39 @@
+! Copyright 2018 Free Software Foundation, Inc.
+!
+! This program is free software; you can redistribute it and/or modify
+! it under the terms of the GNU General Public License as published by
+! the Free Software Foundation; either version 3 of the License, or
+! (at your option) any later version.
+!
+! This program is distributed in the hope that it will be useful,
+! but WITHOUT ANY WARRANTY; without even the implied warranty of
+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+! GNU General Public License for more details.
+!
+! You should have received a copy of the GNU General Public License
+! along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+program vla_strings
+ character(len=:), target, allocatable :: var_char
+ character(len=:), pointer :: var_char_p
+ logical :: l
+
+ allocate(character(len=10) :: var_char)
+ l = allocated(var_char) ! var_char-allocated-1
+ var_char = 'foo'
+ deallocate(var_char) ! var_char-filled-1
+ l = allocated(var_char) ! var_char-deallocated
+ allocate(character(len=42) :: var_char)
+ l = allocated(var_char)
+ var_char = 'foobar'
+ var_char = '' ! var_char-filled-2
+ var_char = 'bar' ! var_char-empty
+ deallocate(var_char)
+ allocate(character(len=21) :: var_char)
+ l = allocated(var_char) ! var_char-allocated-3
+ var_char = 'johndoe'
+ var_char_p => var_char
+ l = associated(var_char_p) ! var_char_p-associated
+ var_char_p => null()
+ l = associated(var_char_p) ! var_char_p-not-associated
+end program vla_strings