/* Dwarf2 assembler output helper routines.
- Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
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. */
#include "config.h"
va_end (ap);
}
+#if 0
+
/* Output a self-relative reference to a label, possibly in a
different section or object file. */
va_end (ap);
}
+#endif /* 0 */
/* Output an absolute reference to a label. */
return 4;
case DW_EH_PE_udata8:
return 8;
+ default:
+ gcc_unreachable ();
}
- abort ();
}
/* Yield a name for a given pointer encoding. */
#if HAVE_DESIGNATED_INITIALIZERS
};
- if (format < 0 || format > 0xff || format_names[format] == NULL)
- abort ();
+ gcc_assert (format >= 0 && format < 0x100 && format_names[format]);
+
return format_names[format];
#else
}
- abort ();
+ gcc_unreachable ();
#endif
}
fputc ('-', asm_out_file);
assemble_name (asm_out_file, lab2);
#else
- abort ();
+ gcc_unreachable ();
#endif
if (flag_debug_asm && comment)
va_end (ap);
}
+#if 0
+
void
dw2_asm_output_delta_sleb128 (const char *lab1 ATTRIBUTE_UNUSED,
const char *lab2 ATTRIBUTE_UNUSED,
fputc ('-', asm_out_file);
assemble_name (asm_out_file, lab2);
#else
- abort ();
+ gcc_unreachable ();
#endif
if (flag_debug_asm && comment)
va_end (ap);
}
+#endif /* 0 */
\f
-static rtx dw2_force_const_mem (rtx);
+static rtx dw2_force_const_mem (rtx, bool);
static int dw2_output_indirect_constant_1 (splay_tree_node, void *);
static GTY((param1_is (char *), param2_is (tree))) splay_tree indirect_pool;
/* Put X, a SYMBOL_REF, in memory. Return a SYMBOL_REF to the allocated
memory. Differs from force_const_mem in that a single pool is used for
the entire unit of translation, and the memory is not guaranteed to be
- "near" the function in any interesting sense. */
+ "near" the function in any interesting sense. PUBLIC controls whether
+ the symbol can be shared across the entire application (or DSO). */
static rtx
-dw2_force_const_mem (rtx x)
+dw2_force_const_mem (rtx x, bool public)
{
splay_tree_node node;
const char *str;
if (! indirect_pool)
indirect_pool = splay_tree_new_ggc (splay_tree_compare_pointers);
- if (GET_CODE (x) != SYMBOL_REF)
- abort ();
+ gcc_assert (GET_CODE (x) == SYMBOL_REF);
- str = (* targetm.strip_name_encoding) (XSTR (x, 0));
+ str = targetm.strip_name_encoding (XSTR (x, 0));
node = splay_tree_lookup (indirect_pool, (splay_tree_key) str);
if (node)
decl = (tree) node->value;
{
tree id;
- if (USE_LINKONCE_INDIRECT)
+ if (public && USE_LINKONCE_INDIRECT)
{
char *ref_name = alloca (strlen (str) + sizeof "DW.ref.");
id = get_identifier (ref_name);
decl = build_decl (VAR_DECL, id, ptr_type_node);
DECL_ARTIFICIAL (decl) = 1;
+ DECL_IGNORED_P (decl) = 1;
TREE_PUBLIC (decl) = 1;
DECL_INITIAL (decl) = decl;
make_decl_one_only (decl);
id = get_identifier (label);
decl = build_decl (VAR_DECL, id, ptr_type_node);
DECL_ARTIFICIAL (decl) = 1;
+ DECL_IGNORED_P (decl) = 1;
TREE_STATIC (decl) = 1;
DECL_INITIAL (decl) = decl;
}
{
const char *sym;
rtx sym_ref;
+ tree decl;
sym = (const char *) node->key;
+ decl = (tree) node->value;
sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
- if (USE_LINKONCE_INDIRECT)
+ if (TREE_PUBLIC (decl) && USE_LINKONCE_INDIRECT)
fprintf (asm_out_file, "\t.hidden %sDW.ref.%s\n", user_label_prefix, sym);
- assemble_variable ((tree) node->value, 1, 1, 1);
+ assemble_variable (decl, 1, 1, 1);
assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
return 0;
splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL);
}
-/* Like dw2_asm_output_addr_rtx, but encode the pointer as directed. */
+/* Like dw2_asm_output_addr_rtx, but encode the pointer as directed.
+ If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect
+ reference is shared across the entire application (or DSO). */
void
-dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr,
+dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool public,
const char *comment, ...)
{
int size;
/* It is very tempting to use force_const_mem so that we share data
with the normal constant pool. However, we've already emitted
the constant pool for this function. Moreover, we'd like to
- share these constants across the entire unit of translation,
- or better, across the entire application (or DSO). */
- addr = dw2_force_const_mem (addr);
+ share these constants across the entire unit of translation and
+ even, if possible, across the entire application (or DSO). */
+ addr = dw2_force_const_mem (addr, public);
encoding &= ~DW_EH_PE_indirect;
goto restart;
}
break;
case DW_EH_PE_pcrel:
- if (GET_CODE (addr) != SYMBOL_REF)
- abort ();
+ gcc_assert (GET_CODE (addr) == SYMBOL_REF);
#ifdef ASM_OUTPUT_DWARF_PCREL
ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0));
#else
default:
/* Other encodings should have been handled by
ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX. */
- abort ();
+ gcc_unreachable ();
}
#ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX
OSDN Git Service
