is not made available by the GCC front-end. */
#define DWARF_LINE_DEFAULT_IS_STMT_START 1
+/* Maximum number of operations per instruction bundle. */
+#ifndef DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN
+#define DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN 1
+#endif
+
#ifdef DWARF2_DEBUGGING_INFO
/* This location is used by calc_die_sizes() to keep track
the offset of each DIE within the .debug_info section. */
static int get_AT_flag (dw_die_ref, enum dwarf_attribute);
static unsigned get_AT_unsigned (dw_die_ref, enum dwarf_attribute);
static inline dw_die_ref get_AT_ref (dw_die_ref, enum dwarf_attribute);
-static bool is_c_family (void);
static bool is_cxx (void);
-static bool is_java (void);
static bool is_fortran (void);
static bool is_ada (void);
static void remove_AT (dw_die_ref, enum dwarf_attribute);
return a ? AT_file (a) : NULL;
}
-/* Return TRUE if the language is C or C++. */
-
-static inline bool
-is_c_family (void)
-{
- unsigned int lang = get_AT_unsigned (comp_unit_die, DW_AT_language);
-
- return (lang == DW_LANG_C || lang == DW_LANG_C89 || lang == DW_LANG_ObjC
- || lang == DW_LANG_C99
- || lang == DW_LANG_C_plus_plus || lang == DW_LANG_ObjC_plus_plus);
-}
-
/* Return TRUE if the language is C++. */
static inline bool
|| lang == DW_LANG_Fortran95);
}
-/* Return TRUE if the language is Java. */
-
-static inline bool
-is_java (void)
-{
- unsigned int lang = get_AT_unsigned (comp_unit_die, DW_AT_language);
-
- return lang == DW_LANG_Java;
-}
-
/* Return TRUE if the language is Ada. */
static inline bool
unsigned long lsize = size_of_locs (AT_loc (a));
/* Block length. */
- size += constant_size (lsize);
+ if (dwarf_version >= 4)
+ size += size_of_uleb128 (lsize);
+ else
+ size += constant_size (lsize);
size += lsize;
}
break;
* a->dw_attr_val.v.val_vec.elt_size; /* block */
break;
case dw_val_class_flag:
- size += 1;
+ if (dwarf_version >= 4)
+ /* Currently all add_AT_flag calls pass in 1 as last argument,
+ so DW_FORM_flag_present can be used. If that ever changes,
+ we'll need to use DW_FORM_flag and have some optimization
+ in build_abbrev_table that will change those to
+ DW_FORM_flag_present if it is set to 1 in all DIEs using
+ the same abbrev entry. */
+ gcc_assert (a->dw_attr_val.v.val_flag == 1);
+ else
+ size += 1;
break;
case dw_val_class_die_ref:
if (AT_ref_external (a))
gcc_unreachable ();
}
case dw_val_class_range_list:
- case dw_val_class_offset:
case dw_val_class_loc_list:
+ if (dwarf_version >= 4)
+ return DW_FORM_sec_offset;
+ /* FALLTHRU */
+ case dw_val_class_offset:
switch (DWARF_OFFSET_SIZE)
{
case 4:
gcc_unreachable ();
}
case dw_val_class_loc:
+ if (dwarf_version >= 4)
+ return DW_FORM_exprloc;
switch (constant_size (size_of_locs (AT_loc (a))))
{
case 1:
gcc_unreachable ();
}
case dw_val_class_flag:
+ if (dwarf_version >= 4)
+ {
+ /* Currently all add_AT_flag calls pass in 1 as last argument,
+ so DW_FORM_flag_present can be used. If that ever changes,
+ we'll need to use DW_FORM_flag and have some optimization
+ in build_abbrev_table that will change those to
+ DW_FORM_flag_present if it is set to 1 in all DIEs using
+ the same abbrev entry. */
+ gcc_assert (a->dw_attr_val.v.val_flag == 1);
+ return DW_FORM_flag_present;
+ }
return DW_FORM_flag;
case dw_val_class_die_ref:
if (AT_ref_external (a))
return DW_FORM_addr;
case dw_val_class_lineptr:
case dw_val_class_macptr:
- return DW_FORM_data;
+ return dwarf_version >= 4 ? DW_FORM_sec_offset : DW_FORM_data;
case dw_val_class_str:
return AT_string_form (a);
case dw_val_class_file:
size = size_of_locs (AT_loc (a));
/* Output the block length for this list of location operations. */
- dw2_asm_output_data (constant_size (size), size, "%s", name);
+ if (dwarf_version >= 4)
+ dw2_asm_output_data_uleb128 (size, "%s", name);
+ else
+ dw2_asm_output_data (constant_size (size), size, "%s", name);
output_loc_sequence (AT_loc (a));
break;
}
case dw_val_class_flag:
+ if (dwarf_version >= 4)
+ {
+ /* Currently all add_AT_flag calls pass in 1 as last argument,
+ so DW_FORM_flag_present can be used. If that ever changes,
+ we'll need to use DW_FORM_flag and have some optimization
+ in build_abbrev_table that will change those to
+ DW_FORM_flag_present if it is set to 1 in all DIEs using
+ the same abbrev entry. */
+ gcc_assert (AT_flag (a) == 1);
+ if (flag_debug_asm)
+ fprintf (asm_out_file, "\t\t\t%s %s\n",
+ ASM_COMMENT_START, name);
+ break;
+ }
dw2_asm_output_data (1, AT_flag (a), "%s", name);
break;
{
int ver = dwarf_version;
- /* Don't mark the output as DWARF-4 until we make full use of the
- version 4 extensions, and gdb supports them. For now, -gdwarf-4
- selects only a few extensions from the DWARF-4 spec. */
- if (ver > 3)
- ver = 3;
if (DWARF_INITIAL_LENGTH_SIZE - DWARF_OFFSET_SIZE == 4)
dw2_asm_output_data (4, 0xffffffff,
"Initial length escape value indicating 64-bit DWARF extension");
unsigned long function;
int ver = dwarf_version;
- /* Don't mark the output as DWARF-4 until we make full use of the
- version 4 extensions, and gdb supports them. For now, -gdwarf-4
- selects only a few extensions from the DWARF-4 spec. */
- if (ver > 3)
- ver = 3;
-
ASM_GENERATE_INTERNAL_LABEL (l1, LINE_NUMBER_BEGIN_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (l2, LINE_NUMBER_END_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (p1, LN_PROLOG_AS_LABEL, 0);
dw2_asm_output_data (1, 1,
"Minimum Instruction Length");
+ if (ver >= 4)
+ dw2_asm_output_data (1, DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN,
+ "Maximum Operations Per Instruction");
dw2_asm_output_data (1, DWARF_LINE_DEFAULT_IS_STMT_START,
"Default is_stmt_start flag");
dw2_asm_output_data (1, DWARF_LINE_BASE,
name = qualified_type ? TYPE_NAME (qualified_type) : NULL;
/* Handle C typedef types. */
- if (name && TREE_CODE (name) == TYPE_DECL && DECL_ORIGINAL_TYPE (name))
+ if (name && TREE_CODE (name) == TYPE_DECL && DECL_ORIGINAL_TYPE (name)
+ && !DECL_ARTIFICIAL (name))
{
tree dtype = TREE_TYPE (name);
add_AT_string (die, DW_AT_comp_dir, remap_debug_filename (wd));
}
+/* Return the default for DW_AT_lower_bound, or -1 if there is not any
+ default. */
+
+static int
+lower_bound_default (void)
+{
+ switch (get_AT_unsigned (comp_unit_die, DW_AT_language))
+ {
+ case DW_LANG_C:
+ case DW_LANG_C89:
+ case DW_LANG_C99:
+ case DW_LANG_C_plus_plus:
+ case DW_LANG_ObjC:
+ case DW_LANG_ObjC_plus_plus:
+ case DW_LANG_Java:
+ return 0;
+ case DW_LANG_Fortran77:
+ case DW_LANG_Fortran90:
+ case DW_LANG_Fortran95:
+ return 1;
+ case DW_LANG_UPC:
+ case DW_LANG_D:
+ return dwarf_version >= 4 ? 0 : -1;
+ case DW_LANG_Ada95:
+ case DW_LANG_Ada83:
+ case DW_LANG_Cobol74:
+ case DW_LANG_Cobol85:
+ case DW_LANG_Pascal83:
+ case DW_LANG_Modula2:
+ case DW_LANG_PLI:
+ return dwarf_version >= 4 ? 1 : -1;
+ default:
+ return -1;
+ }
+}
+
/* Given a tree node describing an array bound (either lower or upper) output
a representation for that bound. */
case INTEGER_CST:
{
unsigned int prec = simple_type_size_in_bits (TREE_TYPE (bound));
+ int dflt;
/* Use the default if possible. */
if (bound_attr == DW_AT_lower_bound
- && (((is_c_family () || is_java ()) && integer_zerop (bound))
- || (is_fortran () && integer_onep (bound))))
+ && host_integerp (bound, 0)
+ && (dflt = lower_bound_default ()) != -1
+ && tree_low_cst (bound, 0) == dflt)
;
/* Otherwise represent the bound as an unsigned value with the
if (info->dimen[dim].lower_bound)
{
/* If it is the default value, omit it. */
- if ((is_c_family () || is_java ())
- && integer_zerop (info->dimen[dim].lower_bound))
- ;
- else if (is_fortran ()
- && integer_onep (info->dimen[dim].lower_bound))
+ int dflt;
+
+ if (host_integerp (info->dimen[dim].lower_bound, 0)
+ && (dflt = lower_bound_default ()) != -1
+ && tree_low_cst (info->dimen[dim].lower_bound, 0) == dflt)
;
else
add_descr_info_field (subrange_die, DW_AT_lower_bound,
/* If the compiler emitted a definition for the DECL declaration
and if we already emitted a DIE for it, don't emit a second
- DIE for it again. */
- if (old_die
- && declaration)
+ DIE for it again. Allow re-declarations of DECLs that are
+ inside functions, though. */
+ if (old_die && declaration && !local_scope_p (context_die))
return;
/* For static data members, the declaration in the class is supposed
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