unsigned short version;
bfd_vma prologue_length;
unsigned char minimum_instruction_length;
+ unsigned char maximum_ops_per_insn;
unsigned char default_is_stmt;
int line_base;
unsigned char line_range;
char *filename;
unsigned int line;
unsigned int column;
- int end_sequence; /* End of (sequential) code sequence. */
+ unsigned char op_index;
+ unsigned char end_sequence; /* End of (sequential) code sequence. */
};
struct fileinfo
{
return (new_line->address > line->address
|| (new_line->address == line->address
- && new_line->end_sequence < line->end_sequence));
+ && (new_line->op_index > line->op_index
+ || (new_line->op_index == line->op_index
+ && new_line->end_sequence < line->end_sequence))));
}
static bfd_boolean
add_line_info (struct line_info_table *table,
bfd_vma address,
+ unsigned char op_index,
char *filename,
unsigned int line,
unsigned int column,
/* Set member data of 'info'. */
info->address = address;
+ info->op_index = op_index;
info->line = line;
info->column = column;
info->end_sequence = end_sequence;
if (seq
&& seq->last_line->address == address
+ && seq->last_line->op_index == op_index
&& seq->last_line->end_sequence == end_sequence)
{
/* We only keep the last entry with the same address and end
if (seq1->last_line->address > seq2->last_line->address)
return -1;
+ if (seq1->last_line->op_index < seq2->last_line->op_index)
+ return 1;
+ if (seq1->last_line->op_index > seq2->last_line->op_index)
+ return -1;
+
return 0;
}
}
line_end = line_ptr + lh.total_length;
lh.version = read_2_bytes (abfd, line_ptr);
+ if (lh.version < 2 || lh.version > 4)
+ {
+ (*_bfd_error_handler)
+ (_("Dwarf Error: Unhandled .debug_line version %d."), lh.version);
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
+ }
line_ptr += 2;
if (offset_size == 4)
lh.prologue_length = read_4_bytes (abfd, line_ptr);
line_ptr += offset_size;
lh.minimum_instruction_length = read_1_byte (abfd, line_ptr);
line_ptr += 1;
+ if (lh.version >= 4)
+ {
+ lh.maximum_ops_per_insn = read_1_byte (abfd, line_ptr);
+ line_ptr += 1;
+ }
+ else
+ lh.maximum_ops_per_insn = 1;
+ if (lh.maximum_ops_per_insn == 0)
+ {
+ (*_bfd_error_handler)
+ (_("Dwarf Error: Invalid maximum operations per instruction."));
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
+ }
lh.default_is_stmt = read_1_byte (abfd, line_ptr);
line_ptr += 1;
lh.line_base = read_1_signed_byte (abfd, line_ptr);
{
/* State machine registers. */
bfd_vma address = 0;
+ unsigned char op_index = 0;
char * filename = table->num_files ? concat_filename (table, 1) : NULL;
unsigned int line = 1;
unsigned int column = 0;
{
/* Special operand. */
adj_opcode = op_code - lh.opcode_base;
- address += (adj_opcode / lh.line_range)
- * lh.minimum_instruction_length;
+ if (lh.maximum_ops_per_insn == 1)
+ address += (adj_opcode / lh.line_range)
+ * lh.minimum_instruction_length;
+ else
+ {
+ address += ((op_index + (adj_opcode / lh.line_range))
+ / lh.maximum_ops_per_insn)
+ * lh.minimum_instruction_length;
+ op_index = (op_index + (adj_opcode / lh.line_range))
+ % lh.maximum_ops_per_insn;
+ }
line += lh.line_base + (adj_opcode % lh.line_range);
/* Append row to matrix using current values. */
- if (!add_line_info (table, address, filename, line, column, 0))
+ if (!add_line_info (table, address, op_index, filename,
+ line, column, 0))
goto line_fail;
if (address < low_pc)
low_pc = address;
{
case DW_LNE_end_sequence:
end_sequence = 1;
- if (!add_line_info (table, address, filename, line, column,
- end_sequence))
+ if (!add_line_info (table, address, op_index, filename,
+ line, column, end_sequence))
goto line_fail;
if (address < low_pc)
low_pc = address;
break;
case DW_LNE_set_address:
address = read_address (unit, line_ptr);
+ op_index = 0;
line_ptr += unit->addr_size;
break;
case DW_LNE_define_file:
}
break;
case DW_LNS_copy:
- if (!add_line_info (table, address, filename, line, column, 0))
+ if (!add_line_info (table, address, op_index,
+ filename, line, column, 0))
goto line_fail;
if (address < low_pc)
low_pc = address;
high_pc = address;
break;
case DW_LNS_advance_pc:
- address += lh.minimum_instruction_length
- * read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
+ if (lh.maximum_ops_per_insn == 1)
+ address += lh.minimum_instruction_length
+ * read_unsigned_leb128 (abfd, line_ptr,
+ &bytes_read);
+ else
+ {
+ bfd_vma adjust = read_unsigned_leb128 (abfd, line_ptr,
+ &bytes_read);
+ address = ((op_index + adjust) / lh.maximum_ops_per_insn)
+ * lh.minimum_instruction_length;
+ op_index = (op_index + adjust) % lh.maximum_ops_per_insn;
+ }
line_ptr += bytes_read;
break;
case DW_LNS_advance_line:
case DW_LNS_set_basic_block:
break;
case DW_LNS_const_add_pc:
- address += lh.minimum_instruction_length
- * ((255 - lh.opcode_base) / lh.line_range);
+ if (lh.maximum_ops_per_insn == 1)
+ address += lh.minimum_instruction_length
+ * ((255 - lh.opcode_base) / lh.line_range);
+ else
+ {
+ bfd_vma adjust = ((255 - lh.opcode_base) / lh.line_range);
+ address += lh.minimum_instruction_length
+ * ((op_index + adjust) / lh.maximum_ops_per_insn);
+ op_index = (op_index + adjust) % lh.maximum_ops_per_insn;
+ }
break;
case DW_LNS_fixed_advance_pc:
address += read_2_bytes (abfd, line_ptr);
+ op_index = 0;
line_ptr += 2;
break;
default:
unsigned int column;
int is_stmt;
int basic_block;
- int end_sequence;
+ unsigned char op_index;
+ unsigned char end_sequence;
/* This variable hold the number of the last entry seen
in the File Table. */
unsigned int last_file_entry;
reset_state_machine (int is_stmt)
{
state_machine_regs.address = 0;
+ state_machine_regs.op_index = 0;
state_machine_regs.file = 1;
state_machine_regs.line = 1;
state_machine_regs.column = 0;
adr = byte_get (data, len - bytes_read - 1);
printf (_("set Address to 0x%lx\n"), adr);
state_machine_regs.address = adr;
+ state_machine_regs.op_index = 0;
break;
case DW_LNE_define_file:
hdrptr += offset_size;
linfo.li_min_insn_length = byte_get (hdrptr, 1);
hdrptr++;
+ if (linfo.li_version >= 4)
+ {
+ linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
+ hdrptr++;
+ if (linfo.li_max_ops_per_insn == 0)
+ {
+ warn (_("Invalid maximum operations per insn.\n"));
+ return 0;
+ }
+ }
+ else
+ linfo.li_max_ops_per_insn = 1;
linfo.li_default_is_stmt = byte_get (hdrptr, 1);
hdrptr++;
linfo.li_line_base = byte_get (hdrptr, 1);
printf (_(" DWARF Version: %d\n"), linfo.li_version);
printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length);
printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length);
+ if (linfo.li_version >= 4)
+ printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn);
printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt);
printf (_(" Line Base: %d\n"), linfo.li_line_base);
printf (_(" Line Range: %d\n"), linfo.li_line_range);
if (op_code >= linfo.li_opcode_base)
{
op_code -= linfo.li_opcode_base;
- uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
- printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
- op_code, uladv, state_machine_regs.address);
+ uladv = (op_code / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
+ op_code, uladv, state_machine_regs.address);
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ printf (_(" Special opcode %d: advance Address by %lu to 0x%lx[%d]"),
+ op_code, uladv, state_machine_regs.address,
+ state_machine_regs.op_index);
+ }
adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
state_machine_regs.line += adv;
printf (_(" and Line by %d to %d\n"),
case DW_LNS_advance_pc:
uladv = read_leb128 (data, & bytes_read, 0);
- uladv *= linfo.li_min_insn_length;
data += bytes_read;
- state_machine_regs.address += uladv;
- printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
- state_machine_regs.address);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
+ state_machine_regs.address);
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ printf (_(" Advance PC by %lu to 0x%lx[%d]\n"), uladv,
+ state_machine_regs.address,
+ state_machine_regs.op_index);
+ }
break;
case DW_LNS_advance_line:
break;
case DW_LNS_const_add_pc:
- uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range)
- * linfo.li_min_insn_length);
- state_machine_regs.address += uladv;
- printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
- state_machine_regs.address);
+ uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
+ state_machine_regs.address);
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ printf (_(" Advance PC by constant %lu to 0x%lx[%d]\n"),
+ uladv, state_machine_regs.address,
+ state_machine_regs.op_index);
+ }
break;
case DW_LNS_fixed_advance_pc:
uladv = byte_get (data, 2);
data += 2;
state_machine_regs.address += uladv;
+ state_machine_regs.op_index = 0;
printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"),
uladv, state_machine_regs.address);
break;
hdrptr += offset_size;
linfo.li_min_insn_length = byte_get (hdrptr, 1);
hdrptr++;
+ if (linfo.li_version >= 4)
+ {
+ linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
+ hdrptr++;
+ if (linfo.li_max_ops_per_insn == 0)
+ {
+ warn (_("Invalid maximum operations per insn.\n"));
+ return 0;
+ }
+ }
+ else
+ linfo.li_max_ops_per_insn = 1;
linfo.li_default_is_stmt = byte_get (hdrptr, 1);
hdrptr++;
linfo.li_line_base = byte_get (hdrptr, 1);
if (op_code >= linfo.li_opcode_base)
{
op_code -= linfo.li_opcode_base;
- uladv = (op_code / linfo.li_line_range) * linfo.li_min_insn_length;
- state_machine_regs.address += uladv;
+ uladv = (op_code / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ }
adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
state_machine_regs.line += adv;
case DW_LNE_set_address:
state_machine_regs.address =
byte_get (op_code_data, ext_op_code_len - bytes_read - 1);
+ state_machine_regs.op_index = 0;
break;
case DW_LNE_define_file:
{
case DW_LNS_advance_pc:
uladv = read_leb128 (data, & bytes_read, 0);
- uladv *= linfo.li_min_insn_length;
data += bytes_read;
- state_machine_regs.address += uladv;
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ }
break;
case DW_LNS_advance_line:
break;
case DW_LNS_const_add_pc:
- uladv = (((255 - linfo.li_opcode_base) / linfo.li_line_range)
- * linfo.li_min_insn_length);
- state_machine_regs.address += uladv;
+ uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ }
+ else
+ {
+ state_machine_regs.address
+ += ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
+ * linfo.li_min_insn_length;
+ state_machine_regs.op_index
+ = (state_machine_regs.op_index + uladv)
+ % linfo.li_max_ops_per_insn;
+ }
break;
case DW_LNS_fixed_advance_pc:
uladv = byte_get (data, 2);
data += 2;
state_machine_regs.address += uladv;
+ state_machine_regs.op_index = 0;
break;
case DW_LNS_set_prologue_end:
if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
{
- printf (_("%-35s %11d %#18lx\n"), newFileName,
- state_machine_regs.line, state_machine_regs.address);
+ if (linfo.li_max_ops_per_insn == 1)
+ printf (_("%-35s %11d %#18lx\n"), newFileName,
+ state_machine_regs.line,
+ state_machine_regs.address);
+ else
+ printf (_("%-35s %11d %#18lx[%d]\n"), newFileName,
+ state_machine_regs.line,
+ state_machine_regs.address,
+ state_machine_regs.op_index);
}
else
{
- printf (_("%s %11d %#18lx\n"), newFileName,
- state_machine_regs.line, state_machine_regs.address);
+ if (linfo.li_max_ops_per_insn == 1)
+ printf (_("%s %11d %#18lx\n"), newFileName,
+ state_machine_regs.line,
+ state_machine_regs.address);
+ else
+ printf (_("%s %11d %#18lx[%d]\n"), newFileName,
+ state_machine_regs.line,
+ state_machine_regs.address,
+ state_machine_regs.op_index);
}
if (op_code == DW_LNE_end_sequence)