+2006-04-01 Joseph S. Myers <joseph@codesourcery.com>
+
+ * dwarf2.h (DW64_CIE_ID): Define.
+ * dwarf2out.c (DWARF_CIE_ID): Define.
+ (output_call_frame_info): Output 0xffffffff before standard 8-byte
+ length header. Use DWARF_CIE_ID.
+ (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
+ dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
+
2006-03-31 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/linux-atomic.asm: New file.
#endif
#endif
+/* CIE identifier. */
+#if HOST_BITS_PER_WIDE_INT >= 64
+#define DWARF_CIE_ID \
+ (unsigned HOST_WIDE_INT) (DWARF_OFFSET_SIZE == 4 ? DW_CIE_ID : DW64_CIE_ID)
+#else
+#define DWARF_CIE_ID DW_CIE_ID
+#endif
+
/* A pointer to the base of a table that contains frame description
information for each routine. */
static GTY((length ("fde_table_allocated"))) dw_fde_ref fde_table;
/* Output the CIE. */
ASM_GENERATE_INTERNAL_LABEL (l1, CIE_AFTER_SIZE_LABEL, for_eh);
ASM_GENERATE_INTERNAL_LABEL (l2, CIE_END_LABEL, for_eh);
+ if (DWARF_INITIAL_LENGTH_SIZE - DWARF_OFFSET_SIZE == 4 && !for_eh)
+ dw2_asm_output_data (4, 0xffffffff,
+ "Initial length escape value indicating 64-bit DWARF extension");
dw2_asm_output_delta (for_eh ? 4 : DWARF_OFFSET_SIZE, l2, l1,
"Length of Common Information Entry");
ASM_OUTPUT_LABEL (asm_out_file, l1);
/* Now that the CIE pointer is PC-relative for EH,
use 0 to identify the CIE. */
dw2_asm_output_data ((for_eh ? 4 : DWARF_OFFSET_SIZE),
- (for_eh ? 0 : DW_CIE_ID),
+ (for_eh ? 0 : DWARF_CIE_ID),
"CIE Identifier Tag");
dw2_asm_output_data (1, DW_CIE_VERSION, "CIE Version");
targetm.asm_out.internal_label (asm_out_file, FDE_LABEL, for_eh + i * 2);
ASM_GENERATE_INTERNAL_LABEL (l1, FDE_AFTER_SIZE_LABEL, for_eh + i * 2);
ASM_GENERATE_INTERNAL_LABEL (l2, FDE_END_LABEL, for_eh + i * 2);
+ if (DWARF_INITIAL_LENGTH_SIZE - DWARF_OFFSET_SIZE == 4 && !for_eh)
+ dw2_asm_output_data (4, 0xffffffff,
+ "Initial length escape value indicating 64-bit DWARF extension");
dw2_asm_output_delta (for_eh ? 4 : DWARF_OFFSET_SIZE, l2, l1,
"FDE Length");
ASM_OUTPUT_LABEL (asm_out_file, l1);
return DW_FORM_addr;
case dw_val_class_range_list:
case dw_val_class_offset:
+ case dw_val_class_loc_list:
switch (DWARF_OFFSET_SIZE)
{
case 4:
default:
gcc_unreachable ();
}
- case dw_val_class_loc_list:
- /* FIXME: Could be DW_FORM_data8, with a > 32 bit size
- .debug_loc section */
- return DW_FORM_data4;
case dw_val_class_loc:
switch (constant_size (size_of_locs (AT_loc (a))))
{