You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* Output dbx-format symbol table data.
#include "target.h"
#include "langhooks.h"
#include "obstack.h"
+#include "expr.h"
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h"
static GTY(()) int dbxout_source_line_counter;
-/* Nonzero if we have actually used any of the GDB extensions
- to the debugging format. The idea is that we use them for the
- first time only if there's a strong reason, but once we have done that,
- we use them whenever convenient. */
-
-static GTY(()) int have_used_extensions = 0;
-
/* Number for the next N_SOL filename stabs label. The number 0 is reserved
for the N_SO filename stabs label. */
static const char *base_input_file;
#ifdef DEBUG_SYMS_TEXT
-#define FORCE_TEXT current_function_section (current_function_decl);
+#define FORCE_TEXT switch_to_section (current_function_section ())
#else
#define FORCE_TEXT
#endif
obstack_1grow (&stabstr_ob, '\0');
len = obstack_object_size (&stabstr_ob);
- chunk = str = obstack_finish (&stabstr_ob);
+ chunk = str = XOBFINISH (&stabstr_ob, char *);
/* Within the buffer are a sequence of NUL-separated strings,
each of which is to be written out as a separate stab
comma than to do a two-character fputs. */
obstack_grow (&stabstr_ob, "\",", 2);
len = obstack_object_size (&stabstr_ob);
- str = obstack_finish (&stabstr_ob);
+ str = XOBFINISH (&stabstr_ob, char *);
fwrite (str, 1, len, asm_out_file);
DBX_FINISH_STABS (sym, code, line, addr, label, number);
/* The Lscope label must be emitted even if we aren't doing anything
else; dbxout_block needs it. */
- function_section (current_function_decl);
+ switch_to_section (function_section (current_function_decl));
/* Convert Lscope into the appropriate format for local labels in case
the system doesn't insert underscores in front of user generated
return N_SO_PASCAL;
else if (strcmp (language_string, "GNU Objective-C") == 0)
return N_SO_OBJC;
+ else if (strcmp (language_string, "GNU Objective-C++") == 0)
+ return N_SO_OBJCPLUS;
else
return 0;
if (used_ltext_label_name)
{
- text_section ();
+ switch_to_section (text_section);
targetm.asm_out.internal_label (asm_out_file, "Ltext", 0);
}
{
/* Don't change section amid function. */
if (current_function_decl == NULL_TREE)
- text_section ();
+ switch_to_section (text_section);
dbxout_begin_simple_stabs (filename, N_SOL);
dbxout_stab_value_internal_label ("Ltext", &source_label_number);
static void
dbxout_global_decl (tree decl)
{
- if (TREE_CODE (decl) == VAR_DECL
- && ! DECL_EXTERNAL (decl)
- && DECL_RTL_SET_P (decl)) /* Not necessary? */
+ if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
{
int saved_tree_used = TREE_USED (decl);
TREE_USED (decl) = 1;
DBX_OUTPUT_MAIN_SOURCE_FILE_END (asm_out_file, filename);
#elif defined DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
{
- text_section ();
+ switch_to_section (text_section);
dbxout_begin_empty_stabs (N_SO);
dbxout_stab_value_internal_label ("Letext", 0);
}
&& (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
|| TREE_CODE (tem) != FIELD_DECL))
{
- have_used_extensions = 1;
stabstr_C ('/');
stabstr_C (DECL_ACCESSIBILITY_CHAR (tem));
}
{
tree name = DECL_ASSEMBLER_NAME (tem);
- have_used_extensions = 1;
stabstr_C (':');
stabstr_I (name);
stabstr_C (';');
if (use_gnu_debug_info_extensions
&& TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (TYPE_PRECISION (type));
stabstr_C (';');
if (use_gnu_debug_info_extensions
&& TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (TYPE_PRECISION (type));
stabstr_C (';');
case CHAR_TYPE:
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (BITS_PER_UNIT * int_size_in_bytes (type));
stabstr_S (";-20;");
case BOOLEAN_TYPE:
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (BITS_PER_UNIT * int_size_in_bytes (type));
stabstr_S (";-16;");
/* Make arrays of packed bits look like bitstrings for chill. */
if (TYPE_PACKED (type) && use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (BITS_PER_UNIT * int_size_in_bytes (type));
stabstr_S (";@S;S");
}
if (use_gnu_debug_info_extensions && vector_type)
- {
- have_used_extensions = 1;
- stabstr_S ("@V;");
- }
+ stabstr_S ("@V;");
/* Output "a" followed by a range type definition
for the index type of the array
different from an array of characters. */
if (TYPE_STRING_FLAG (type) && use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_S ("@S;");
}
tem = TYPE_DOMAIN (type);
{
if (BINFO_N_BASE_BINFOS (binfo))
{
- have_used_extensions = 1;
stabstr_C ('!');
stabstr_U (BINFO_N_BASE_BINFOS (binfo));
stabstr_C (',');
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_C (BINFO_VIRTUAL_P (child) ? '1' : '0');
stabstr_C (access == access_public_node ? '2' :
access == access_protected_node
? '1' :'0');
if (BINFO_VIRTUAL_P (child)
- && strcmp (lang_hooks.name, "GNU C++") == 0)
+ && (strcmp (lang_hooks.name, "GNU C++") == 0
+ || strcmp (lang_hooks.name, "GNU Objective-C++") == 0))
/* For a virtual base, print the (negative)
offset within the vtable where we must look
to find the necessary adjustment. */
dbxout_type_fields (type);
if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE)
{
- have_used_extensions = 1;
dbxout_type_methods (type);
}
/* Avoid the ~ if we don't really need it--it confuses dbx. */
&& TYPE_VFIELD (type))
{
- have_used_extensions = 1;
/* We need to write out info about what field this class
uses as its "main" vtable pointer field, because if this
if (use_gnu_debug_info_extensions
&& TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
{
- have_used_extensions = 1;
stabstr_S ("@s");
stabstr_D (TYPE_PRECISION (type));
stabstr_C (';');
case METHOD_TYPE:
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_C ('#');
/* Write the argument types out longhand. */
case OFFSET_TYPE:
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_C ('@');
dbxout_type (TYPE_OFFSET_BASETYPE (type), 0);
stabstr_C (',');
case REFERENCE_TYPE:
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
stabstr_C ('&');
}
else
}
}
\f
+/* This is a specialized subset of expand_expr for use by dbxout_symbol in
+ evaluating DECL_VALUE_EXPR. In particular, we stop if we find decls that
+ havn't been expanded, or if the expression is getting so complex we won't
+ be able to represent it in stabs anyway. Returns NULL on failure. */
+
+static rtx
+dbxout_expand_expr (tree expr)
+{
+ switch (TREE_CODE (expr))
+ {
+ case VAR_DECL:
+ case PARM_DECL:
+ if (DECL_HAS_VALUE_EXPR_P (expr))
+ return dbxout_expand_expr (DECL_VALUE_EXPR (expr));
+ /* FALLTHRU */
+
+ case CONST_DECL:
+ case RESULT_DECL:
+ return DECL_RTL_IF_SET (expr);
+
+ case INTEGER_CST:
+ return expand_expr (expr, NULL_RTX, VOIDmode, EXPAND_INITIALIZER);
+
+ case COMPONENT_REF:
+ case ARRAY_REF:
+ case ARRAY_RANGE_REF:
+ case BIT_FIELD_REF:
+ {
+ enum machine_mode mode;
+ HOST_WIDE_INT bitsize, bitpos;
+ tree offset, tem;
+ int volatilep = 0, unsignedp = 0;
+ rtx x;
+
+ tem = get_inner_reference (expr, &bitsize, &bitpos, &offset,
+ &mode, &unsignedp, &volatilep, true);
+
+ x = dbxout_expand_expr (tem);
+ if (x == NULL || !MEM_P (x))
+ return NULL;
+ if (offset != NULL)
+ {
+ if (!host_integerp (offset, 0))
+ return NULL;
+ x = adjust_address_nv (x, mode, tree_low_cst (offset, 0));
+ }
+ if (bitpos != 0)
+ x = adjust_address_nv (x, mode, bitpos / BITS_PER_UNIT);
+
+ return x;
+ }
+
+ default:
+ return NULL;
+ }
+}
+
/* Output a .stabs for the symbol defined by DECL,
which must be a ..._DECL node in the normal namespace.
It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
tree type = TREE_TYPE (decl);
tree context = NULL_TREE;
int result = 0;
+ rtx decl_rtl;
/* "Intercept" dbxout_symbol() calls like we do all debug_hooks. */
++debug_nesting;
break;
case FUNCTION_DECL:
- if (DECL_RTL (decl) == 0)
+ decl_rtl = DECL_RTL_IF_SET (decl);
+ if (!decl_rtl)
DBXOUT_DECR_NESTING_AND_RETURN (0);
if (DECL_EXTERNAL (decl))
break;
/* Don't mention an inline instance of a nested function. */
if (context && DECL_FROM_INLINE (decl))
break;
- if (!MEM_P (DECL_RTL (decl))
- || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
+ if (!MEM_P (decl_rtl)
+ || GET_CODE (XEXP (decl_rtl, 0)) != SYMBOL_REF)
break;
dbxout_begin_complex_stabs ();
stabstr_I (DECL_NAME (context));
}
- dbxout_finish_complex_stabs (decl, N_FUN, XEXP (DECL_RTL (decl), 0),
- 0, 0);
+ dbxout_finish_complex_stabs (decl, N_FUN, XEXP (decl_rtl, 0), 0, 0);
break;
case TYPE_DECL:
|| TREE_CODE (type) == UNION_TYPE
|| TREE_CODE (type) == QUAL_UNION_TYPE)
&& TYPE_NAME (type) == decl
- && !(use_gnu_debug_info_extensions && have_used_extensions)
+ && !use_gnu_debug_info_extensions
&& !TREE_ASM_WRITTEN (TYPE_NAME (type))
/* Distinguish the implicit typedefs of C++
from explicit ones that might be found in C. */
dbxout_begin_complex_stabs ();
- /* Output leading class/struct qualifiers.
- ??? why not set have_used_extensions here ... because
- then the test of it below would always be true, I
- guess. But it's not clear to me why we shouldn't do
- that always in extended mode. */
+ /* Output leading class/struct qualifiers. */
if (use_gnu_debug_info_extensions)
dbxout_class_name_qualifiers (decl);
from explicit ones that might be found in C. */
&& DECL_ARTIFICIAL (decl))
{
- if (use_gnu_debug_info_extensions && have_used_extensions)
+ if (use_gnu_debug_info_extensions)
{
stabstr_C ('T');
TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1;
gcc_unreachable ();
case RESULT_DECL:
- /* Named return value, treat like a VAR_DECL. */
case VAR_DECL:
- if (! DECL_RTL_SET_P (decl))
- DBXOUT_DECR_NESTING_AND_RETURN (0);
/* Don't mention a variable that is external.
Let the file that defines it describe it. */
if (DECL_EXTERNAL (decl))
&& host_integerp (DECL_INITIAL (decl), 0)
&& ! TREE_ASM_WRITTEN (decl)
&& (DECL_CONTEXT (decl) == NULL_TREE
- || TREE_CODE (DECL_CONTEXT (decl)) == BLOCK)
+ || TREE_CODE (DECL_CONTEXT (decl)) == BLOCK
+ || TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
&& TREE_PUBLIC (decl) == 0)
{
/* The sun4 assembler does not grok this. */
HOST_WIDE_INT ival = TREE_INT_CST_LOW (DECL_INITIAL (decl));
dbxout_begin_complex_stabs ();
- stabstr_I (DECL_NAME (decl));
- stabstr_S (":c=i");
+ dbxout_symbol_name (decl, NULL, 'c');
+ stabstr_S ("=i");
stabstr_D (ival);
dbxout_finish_complex_stabs (0, N_LSYM, 0, 0, 0);
DBXOUT_DECR_NESTING;
}
/* else it is something we handle like a normal variable. */
- SET_DECL_RTL (decl, eliminate_regs (DECL_RTL (decl), 0, NULL_RTX));
+ decl_rtl = dbxout_expand_expr (decl);
+ if (!decl_rtl)
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+
+ decl_rtl = eliminate_regs (decl_rtl, 0, NULL_RTX);
#ifdef LEAF_REG_REMAP
if (current_function_uses_only_leaf_regs)
- leaf_renumber_regs_insn (DECL_RTL (decl));
+ leaf_renumber_regs_insn (decl_rtl);
#endif
- result = dbxout_symbol_location (decl, type, 0, DECL_RTL (decl));
+ result = dbxout_symbol_location (decl, type, 0, decl_rtl);
break;
default:
{
/* Ultrix `as' seems to need this. */
#ifdef DBX_STATIC_STAB_DATA_SECTION
- data_section ();
+ switch_to_section (data_section);
#endif
code = N_STSYM;
}
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