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Index: bfd/ChangeLog

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2001-11-11  Geoffrey Keating  <geoffk@redhat.com>

	* dwarf2.c (decode_line_info): Properly deal with unknown standard
	opcodes.

Index: binutils/ChangeLog
2001-11-11  Geoffrey Keating  <geoffk@redhat.com>

	* readelf.c (display_debug_lines): Deal with unknown standard
	opcodes.  Handle DW_LNS_set_prologue_end, DW_LNS_set_epilogue_begin,
	DW_LNS_set_isa.

Index: include/elf/ChangeLog
2001-11-11  Geoffrey Keating  <geoffk@redhat.com>

	* dwarf2.h (dwarf_line_number_ops): Add DWARF 3 opcodes.
This commit is contained in:
Geoffrey Keating 2001-11-13 20:13:30 +00:00
parent 8b982acfc6
commit 1a509dcc12
6 changed files with 86 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2001-11-13 Geoffrey Keating <geoffk@redhat.com>
* dwarf2.c (decode_line_info): Properly deal with unknown standard
opcodes.
2001-11-13 John Marshall <jmarshall@acm.org>
Alan Modra <amodra@bigpond.net.au>

39
bfd/dwarf2.c
View File

@ -979,7 +979,22 @@ decode_line_info (unit, stash)
op_code = read_1_byte (abfd, line_ptr);
line_ptr += 1;
switch (op_code)
if (op_code >= lh.opcode_base)
{ /* Special operand. */
adj_opcode = op_code - lh.opcode_base;
address += (adj_opcode / lh.line_range)
* lh.minimum_instruction_length;
line += lh.line_base + (adj_opcode % lh.line_range);
/* Append row to matrix using current values. */
add_line_info (table, address, filename, line, column, 0);
basic_block = 1;
if (need_low_pc)
{
need_low_pc = 0;
low_pc = address;
}
}
else switch (op_code)
{
case DW_LNS_extended_op:
line_ptr += 1; /* Ignore length. */
@ -1079,19 +1094,15 @@ decode_line_info (unit, stash)
address += read_2_bytes (abfd, line_ptr);
line_ptr += 2;
break;
default: /* Special operand. */
adj_opcode = op_code - lh.opcode_base;
address += (adj_opcode / lh.line_range)
* lh.minimum_instruction_length;
line += lh.line_base + (adj_opcode % lh.line_range);
/* Append row to matrix using current values. */
add_line_info (table, address, filename, line, column, 0);
basic_block = 1;
if (need_low_pc)
{
need_low_pc = 0;
low_pc = address;
}
default:
{ /* Unknown standard opcode, ignore it. */
int i;
for (i = 0; i < lh.standard_opcode_lengths[op_code]; i++)
{
(void) read_unsigned_leb128 (abfd, line_ptr, &bytes_read);
line_ptr += bytes_read;
}
}
}
}
}

9
binutils/ChangeLog
View File

@ -1,9 +1,16 @@
2001-11-13 Geoffrey Keating <geoffk@redhat.com>
* readelf.c (display_debug_lines): Deal with unknown standard
opcodes. Handle DW_LNS_set_prologue_end, DW_LNS_set_epilogue_begin,
DW_LNS_set_isa.
2001-11-13 Timothy Wall <twall@alum.mit.edu>
* MAINTAINERS: Add self as tic54x maintainer. This target
includes the IBM C54XDSP clone.
2001-11-12 * Steven J. Hill <sjhill@realitydiluted.com>
* bucomm.c (make_tempname): Use mkstemp in place of mktemp.
2001-11-09 Jeffrey A Law (law@cygnus.com)

50
binutils/readelf.c
View File

@ -5888,7 +5888,19 @@ display_debug_lines (section, start, file)
op_code = * data ++;
switch (op_code)
if (op_code >= info.li_opcode_base)
{
op_code -= info.li_opcode_base;
adv = (op_code / info.li_line_range) * info.li_min_insn_length;
state_machine_regs.address += adv;
printf (_(" Special opcode %d: advance Address by %d to 0x%lx"),
op_code, adv, state_machine_regs.address);
adv = (op_code % info.li_line_range) + info.li_line_base;
state_machine_regs.line += adv;
printf (_(" and Line by %d to %d\n"),
adv, state_machine_regs.line);
}
else switch (op_code)
{
case DW_LNS_extended_op:
data += process_extended_line_op (data, info.li_default_is_stmt,
@ -5958,20 +5970,36 @@ display_debug_lines (section, start, file)
adv, state_machine_regs.address);
break;
case DW_LNS_set_prologue_end:
printf (_(" Set prologue_end to true\n"));
break;
case DW_LNS_set_epilogue_begin:
printf (_(" Set epilogue_begin to true\n"));
break;
case DW_LNS_set_isa:
adv = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
printf (_(" Set ISA to %d\n"), adv);
break;
default:
op_code -= info.li_opcode_base;
adv = (op_code / info.li_line_range) * info.li_min_insn_length;
state_machine_regs.address += adv;
printf (_(" Special opcode %d: advance Address by %d to 0x%lx"),
op_code, adv, state_machine_regs.address);
adv = (op_code % info.li_line_range) + info.li_line_base;
state_machine_regs.line += adv;
printf (_(" and Line by %d to %d\n"),
adv, state_machine_regs.line);
printf (_(" Unknown opcode %d with operands: "), op_code);
{
int i;
for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
{
printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
i == 1 ? "" : ", ");
data += bytes_read;
}
putchar ('\n');
}
break;
}
}
printf ("\n");
putchar ('\n');
}
return 1;

4
include/elf/ChangeLog
View File

@ -1,3 +1,7 @@
2001-11-11 Geoffrey Keating <geoffk@redhat.com>
* dwarf2.h (dwarf_line_number_ops): Add DWARF 3 opcodes.
2001-10-30 Hans-Peter Nilsson <hp@bitrange.com>
* mmix.h: New file.

6
include/elf/dwarf2.h
View File

@ -588,7 +588,11 @@ enum dwarf_line_number_ops
DW_LNS_negate_stmt = 6,
DW_LNS_set_basic_block = 7,
DW_LNS_const_add_pc = 8,
DW_LNS_fixed_advance_pc = 9
DW_LNS_fixed_advance_pc = 9,
/* DWARF 3 */
DW_LNS_set_prologue_end = 10,
DW_LNS_set_epilogue_begin = 11,
DW_LNS_set_isa = 12
};
/* Line number extended opcodes. */