/* dwarf.c -- display DWARF contents of a BFD binary file
- Copyright 2005, 2006
+ Copyright 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
-#include <stdio.h>
-
+#include "sysdep.h"
+#include "libiberty.h"
+#include "bfd.h"
+#include "bfd_stdint.h"
+#include "bucomm.h"
+#include "elfcomm.h"
+#include "elf/common.h"
+#include "dwarf2.h"
#include "dwarf.h"
-#include "bucomm.h"
-#include "libiberty.h"
+static const char *regname (unsigned int regno, int row);
static int have_frame_base;
static int need_base_address;
static unsigned int num_debug_info_entries = 0;
static debug_info *debug_information = NULL;
+/* Special value for num_debug_info_entries to indicate
+ that the .debug_info section could not be loaded/parsed. */
+#define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
-dwarf_vma eh_addr_size;
-int is_relocatable;
+int eh_addr_size;
int do_debug_info;
int do_debug_abbrevs;
int do_debug_lines;
int do_debug_pubnames;
+int do_debug_pubtypes;
int do_debug_aranges;
int do_debug_ranges;
int do_debug_frames;
int do_debug_macinfo;
int do_debug_str;
int do_debug_loc;
+int do_gdb_index;
+int do_trace_info;
+int do_trace_abbrevs;
+int do_trace_aranges;
+int do_wide;
-dwarf_vma (*byte_get) (unsigned char *, int);
+/* Values for do_debug_lines. */
+#define FLAG_DEBUG_LINES_RAW 1
+#define FLAG_DEBUG_LINES_DECODED 2
-dwarf_vma
-byte_get_little_endian (unsigned char *field, int size)
+static int
+size_of_encoded_value (int encoding)
{
- switch (size)
+ switch (encoding & 0x7)
{
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[0]))
- | (((unsigned int) (field[1])) << 8);
-
- case 4:
- return ((unsigned long) (field[0]))
- | (((unsigned long) (field[1])) << 8)
- | (((unsigned long) (field[2])) << 16)
- | (((unsigned long) (field[3])) << 24);
-
- case 8:
- if (sizeof (dwarf_vma) == 8)
- return ((dwarf_vma) (field[0]))
- | (((dwarf_vma) (field[1])) << 8)
- | (((dwarf_vma) (field[2])) << 16)
- | (((dwarf_vma) (field[3])) << 24)
- | (((dwarf_vma) (field[4])) << 32)
- | (((dwarf_vma) (field[5])) << 40)
- | (((dwarf_vma) (field[6])) << 48)
- | (((dwarf_vma) (field[7])) << 56);
- else if (sizeof (dwarf_vma) == 4)
- /* We want to extract data from an 8 byte wide field and
- place it into a 4 byte wide field. Since this is a little
- endian source we can just use the 4 byte extraction code. */
- return ((unsigned long) (field[0]))
- | (((unsigned long) (field[1])) << 8)
- | (((unsigned long) (field[2])) << 16)
- | (((unsigned long) (field[3])) << 24);
-
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
+ default: /* ??? */
+ case 0: return eh_addr_size;
+ case 2: return 2;
+ case 3: return 4;
+ case 4: return 8;
}
}
-dwarf_vma
-byte_get_big_endian (unsigned char *field, int size)
+static dwarf_vma
+get_encoded_value (unsigned char *data,
+ int encoding,
+ struct dwarf_section *section)
{
- switch (size)
- {
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
-
- case 4:
- return ((unsigned long) (field[3]))
- | (((unsigned long) (field[2])) << 8)
- | (((unsigned long) (field[1])) << 16)
- | (((unsigned long) (field[0])) << 24);
-
- case 8:
- if (sizeof (dwarf_vma) == 8)
- return ((dwarf_vma) (field[7]))
- | (((dwarf_vma) (field[6])) << 8)
- | (((dwarf_vma) (field[5])) << 16)
- | (((dwarf_vma) (field[4])) << 24)
- | (((dwarf_vma) (field[3])) << 32)
- | (((dwarf_vma) (field[2])) << 40)
- | (((dwarf_vma) (field[1])) << 48)
- | (((dwarf_vma) (field[0])) << 56);
- else if (sizeof (dwarf_vma) == 4)
- {
- /* Although we are extracing data from an 8 byte wide field,
- we are returning only 4 bytes of data. */
- field += 4;
- return ((unsigned long) (field[3]))
- | (((unsigned long) (field[2])) << 8)
- | (((unsigned long) (field[1])) << 16)
- | (((unsigned long) (field[0])) << 24);
- }
+ int size = size_of_encoded_value (encoding);
+ dwarf_vma val;
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
- }
+ if (encoding & DW_EH_PE_signed)
+ val = byte_get_signed (data, size);
+ else
+ val = byte_get (data, size);
+
+ if ((encoding & 0x70) == DW_EH_PE_pcrel)
+ val += section->address + (data - section->start);
+ return val;
}
-static dwarf_vma
-byte_get_signed (unsigned char *field, int size)
-{
- dwarf_vma x = byte_get (field, size);
+/* Print a dwarf_vma value (typically an address, offset or length) in
+ hexadecimal format, followed by a space. The length of the value (and
+ hence the precision displayed) is determined by the byte_size parameter. */
- switch (size)
- {
- case 1:
- return (x ^ 0x80) - 0x80;
- case 2:
- return (x ^ 0x8000) - 0x8000;
- case 4:
- return (x ^ 0x80000000) - 0x80000000;
- case 8:
- return x;
- default:
- abort ();
- }
+static void
+print_dwarf_vma (dwarf_vma val, unsigned byte_size)
+{
+ static char buff[18];
+
+ /* Printf does not have a way of specifiying a maximum field width for an
+ integer value, so we print the full value into a buffer and then select
+ the precision we need. */
+#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
+#ifndef __MSVCRT__
+ snprintf (buff, sizeof (buff), "%16.16llx ", val);
+#else
+ snprintf (buff, sizeof (buff), "%016I64x ", val);
+#endif
+#else
+ snprintf (buff, sizeof (buff), "%16.16lx ", val);
+#endif
+
+ fputs (buff + (byte_size == 4 ? 8 : 0), stdout);
}
-static unsigned long int
+unsigned long int
read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
{
unsigned long int result = 0;
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:
printf (_(" define new File Table entry\n"));
printf (_(" Entry\tDir\tTime\tSize\tName\n"));
- printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
+ printf (" %d\t", ++state_machine_regs.last_file_entry);
name = data;
data += strlen ((char *) data) + 1;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- printf (_("%s\n\n"), name);
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
+ printf ("%s\n\n", name);
+ break;
+
+ case DW_LNE_set_discriminator:
+ printf (_("set Discriminator to %lu\n"),
+ read_leb128 (data, & bytes_read, 0));
+ break;
+
+ /* HP extensions. */
+ case DW_LNE_HP_negate_is_UV_update:
+ printf ("DW_LNE_HP_negate_is_UV_update\n");
+ break;
+ case DW_LNE_HP_push_context:
+ printf ("DW_LNE_HP_push_context\n");
+ break;
+ case DW_LNE_HP_pop_context:
+ printf ("DW_LNE_HP_pop_context\n");
+ break;
+ case DW_LNE_HP_set_file_line_column:
+ printf ("DW_LNE_HP_set_file_line_column\n");
+ break;
+ case DW_LNE_HP_set_routine_name:
+ printf ("DW_LNE_HP_set_routine_name\n");
+ break;
+ case DW_LNE_HP_set_sequence:
+ printf ("DW_LNE_HP_set_sequence\n");
+ break;
+ case DW_LNE_HP_negate_post_semantics:
+ printf ("DW_LNE_HP_negate_post_semantics\n");
+ break;
+ case DW_LNE_HP_negate_function_exit:
+ printf ("DW_LNE_HP_negate_function_exit\n");
+ break;
+ case DW_LNE_HP_negate_front_end_logical:
+ printf ("DW_LNE_HP_negate_front_end_logical\n");
+ break;
+ case DW_LNE_HP_define_proc:
+ printf ("DW_LNE_HP_define_proc\n");
break;
default:
- printf (_("UNKNOWN: length %d\n"), len - bytes_read);
+ if (op_code >= DW_LNE_lo_user
+ /* The test against DW_LNW_hi_user is redundant due to
+ the limited range of the unsigned char data type used
+ for op_code. */
+ /*&& op_code <= DW_LNE_hi_user*/)
+ printf (_("user defined: length %d\n"), len - bytes_read);
+ else
+ printf (_("UNKNOWN: length %d\n"), len - bytes_read);
break;
}
static void
free_abbrevs (void)
{
- abbrev_entry *abbrev;
+ abbrev_entry *abbrv;
- for (abbrev = first_abbrev; abbrev;)
+ for (abbrv = first_abbrev; abbrv;)
{
- abbrev_entry *next = abbrev->next;
+ abbrev_entry *next_abbrev = abbrv->next;
abbrev_attr *attr;
- for (attr = abbrev->first_attr; attr;)
+ for (attr = abbrv->first_attr; attr;)
{
- abbrev_attr *next = attr->next;
+ abbrev_attr *next_attr = attr->next;
free (attr);
- attr = next;
+ attr = next_attr;
}
- free (abbrev);
- abbrev = next;
+ free (abbrv);
+ abbrv = next_abbrev;
}
last_abbrev = first_abbrev = NULL;
{
abbrev_entry *entry;
- entry = malloc (sizeof (*entry));
+ entry = (abbrev_entry *) malloc (sizeof (*entry));
if (entry == NULL)
/* ugg */
{
abbrev_attr *attr;
- attr = malloc (sizeof (*attr));
+ attr = (abbrev_attr *) malloc (sizeof (*attr));
if (attr == NULL)
/* ugg */
case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
+ case DW_TAG_condition: return "DW_TAG_condition";
+ case DW_TAG_shared_type: return "DW_TAG_shared_type";
+ /* DWARF 4 values. */
+ case DW_TAG_type_unit: return "DW_TAG_type_unit";
+ case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
+ case DW_TAG_template_alias: return "DW_TAG_template_alias";
/* UPC values. */
case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
case DW_FORM_ref8: return "DW_FORM_ref8";
case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
case DW_FORM_indirect: return "DW_FORM_indirect";
+ /* DWARF 4 values. */
+ case DW_FORM_sec_offset: return "DW_FORM_sec_offset";
+ case DW_FORM_exprloc: return "DW_FORM_exprloc";
+ case DW_FORM_flag_present: return "DW_FORM_flag_present";
+ case DW_FORM_ref_sig8: return "DW_FORM_ref_sig8";
default:
{
static char buffer[100];
static int
decode_location_expression (unsigned char * data,
unsigned int pointer_size,
+ unsigned int offset_size,
+ int dwarf_version,
unsigned long length,
- unsigned long cu_offset)
+ unsigned long cu_offset,
+ struct dwarf_section * section)
{
unsigned op;
unsigned int bytes_read;
case DW_OP_reg29:
case DW_OP_reg30:
case DW_OP_reg31:
- printf ("DW_OP_reg%d", op - DW_OP_reg0);
+ printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0,
+ regname (op - DW_OP_reg0, 1));
break;
case DW_OP_breg0:
case DW_OP_breg29:
case DW_OP_breg30:
case DW_OP_breg31:
- printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0,
+ printf ("DW_OP_breg%d (%s): %ld", op - DW_OP_breg0,
+ regname (op - DW_OP_breg0, 1),
read_leb128 (data, &bytes_read, 1));
data += bytes_read;
break;
case DW_OP_regx:
- printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0));
+ uvalue = read_leb128 (data, &bytes_read, 0);
data += bytes_read;
+ printf ("DW_OP_regx: %lu (%s)", uvalue, regname (uvalue, 1));
break;
case DW_OP_fbreg:
need_frame_base = 1;
case DW_OP_bregx:
uvalue = read_leb128 (data, &bytes_read, 0);
data += bytes_read;
- printf ("DW_OP_bregx: %lu %ld", uvalue,
+ printf ("DW_OP_bregx: %lu (%s) %ld", uvalue, regname (uvalue, 1),
read_leb128 (data, &bytes_read, 1));
data += bytes_read;
break;
case DW_OP_call2:
/* XXX: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
- printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
+ printf ("DW_OP_call2: <0x%lx>", (long) byte_get (data, 2) + cu_offset);
data += 2;
break;
case DW_OP_call4:
/* XXX: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
- printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
+ printf ("DW_OP_call4: <0x%lx>", (long) byte_get (data, 4) + cu_offset);
data += 4;
break;
case DW_OP_call_ref:
- printf ("DW_OP_call_ref");
+ /* XXX: Strictly speaking for 64-bit DWARF3 files
+ this ought to be an 8-byte wide computation. */
+ if (dwarf_version == -1)
+ {
+ printf (_("(DW_OP_call_ref in frame info)"));
+ /* No way to tell where the next op is, so just bail. */
+ return need_frame_base;
+ }
+ if (dwarf_version == 2)
+ {
+ printf ("DW_OP_call_ref: <0x%lx>",
+ (long) byte_get (data, pointer_size));
+ data += pointer_size;
+ }
+ else
+ {
+ printf ("DW_OP_call_ref: <0x%lx>",
+ (long) byte_get (data, offset_size));
+ data += offset_size;
+ }
+ break;
+ case DW_OP_form_tls_address:
+ printf ("DW_OP_form_tls_address");
+ break;
+ case DW_OP_call_frame_cfa:
+ printf ("DW_OP_call_frame_cfa");
+ break;
+ case DW_OP_bit_piece:
+ printf ("DW_OP_bit_piece: ");
+ printf ("size: %lu ", read_leb128 (data, &bytes_read, 0));
+ data += bytes_read;
+ printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0));
+ data += bytes_read;
+ break;
+
+ /* DWARF 4 extensions. */
+ case DW_OP_stack_value:
+ printf ("DW_OP_stack_value");
+ break;
+
+ case DW_OP_implicit_value:
+ printf ("DW_OP_implicit_value");
+ uvalue = read_leb128 (data, &bytes_read, 0);
+ data += bytes_read;
+ display_block (data, uvalue);
+ data += uvalue;
break;
/* GNU extensions. */
case DW_OP_GNU_push_tls_address:
- printf ("DW_OP_GNU_push_tls_address");
+ printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
+ break;
+ case DW_OP_GNU_uninit:
+ printf ("DW_OP_GNU_uninit");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_GNU_encoded_addr:
+ {
+ int encoding;
+ dwarf_vma addr;
+
+ encoding = *data++;
+ addr = get_encoded_value (data, encoding, section);
+ data += size_of_encoded_value (encoding);
+
+ printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
+ print_dwarf_vma (addr, pointer_size);
+ }
+ break;
+ case DW_OP_GNU_implicit_pointer:
+ /* XXX: Strictly speaking for 64-bit DWARF3 files
+ this ought to be an 8-byte wide computation. */
+ if (dwarf_version == -1)
+ {
+ printf (_("(DW_OP_GNU_implicit_pointer in frame info)"));
+ /* No way to tell where the next op is, so just bail. */
+ return need_frame_base;
+ }
+ if (dwarf_version == 2)
+ {
+ printf ("DW_OP_GNU_implicit_pointer: <0x%lx> %ld",
+ (long) byte_get (data, pointer_size),
+ read_leb128 (data + pointer_size, &bytes_read, 1));
+ data += pointer_size + bytes_read;
+ }
+ else
+ {
+ printf ("DW_OP_GNU_implicit_pointer: <0x%lx> %ld",
+ (long) byte_get (data, offset_size),
+ read_leb128 (data + offset_size, &bytes_read, 1));
+ data += offset_size + bytes_read;
+ }
+ break;
+
+ /* HP extensions. */
+ case DW_OP_HP_is_value:
+ printf ("DW_OP_HP_is_value");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_HP_fltconst4:
+ printf ("DW_OP_HP_fltconst4");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_HP_fltconst8:
+ printf ("DW_OP_HP_fltconst8");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_HP_mod_range:
+ printf ("DW_OP_HP_mod_range");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_HP_unmod_range:
+ printf ("DW_OP_HP_unmod_range");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+ case DW_OP_HP_tls:
+ printf ("DW_OP_HP_tls");
+ /* FIXME: Is there data associated with this OP ? */
+ break;
+
+ /* PGI (STMicroelectronics) extensions. */
+ case DW_OP_PGI_omp_thread_num:
+ /* Pushes the thread number for the current thread as it would be
+ returned by the standard OpenMP library function:
+ omp_get_thread_num(). The "current thread" is the thread for
+ which the expression is being evaluated. */
+ printf ("DW_OP_PGI_omp_thread_num");
break;
default:
static unsigned char *
read_and_display_attr_value (unsigned long attribute,
unsigned long form,
- unsigned char *data,
+ unsigned char * data,
unsigned long cu_offset,
unsigned long pointer_size,
unsigned long offset_size,
int dwarf_version,
- debug_info *debug_info_p,
- int do_loc)
+ debug_info * debug_info_p,
+ int do_loc,
+ struct dwarf_section * section)
{
unsigned long uvalue = 0;
unsigned char *block_start = NULL;
+ unsigned char * orig_data = data;
unsigned int bytes_read;
switch (form)
uvalue = byte_get (data, pointer_size);
data += pointer_size;
}
- else if (dwarf_version == 3)
+ else if (dwarf_version == 3 || dwarf_version == 4)
{
uvalue = byte_get (data, offset_size);
data += offset_size;
}
else
{
- error (_("Internal error: DWARF version is not 2 or 3.\n"));
+ error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
}
break;
break;
case DW_FORM_strp:
+ case DW_FORM_sec_offset:
uvalue = byte_get (data, offset_size);
data += offset_size;
break;
+ case DW_FORM_flag_present:
+ uvalue = 1;
+ break;
+
case DW_FORM_ref1:
case DW_FORM_flag:
case DW_FORM_data1:
return read_and_display_attr_value (attribute, form, data,
cu_offset, pointer_size,
offset_size, dwarf_version,
- debug_info_p, do_loc);
+ debug_info_p, do_loc,
+ section);
}
switch (form)
{
case DW_FORM_ref_addr:
if (!do_loc)
- printf (" <#%lx>", uvalue);
+ printf (" <0x%lx>", uvalue);
break;
case DW_FORM_ref1:
case DW_FORM_ref4:
case DW_FORM_ref_udata:
if (!do_loc)
- printf (" <%lx>", uvalue + cu_offset);
+ printf (" <0x%lx>", uvalue + cu_offset);
break;
case DW_FORM_data4:
case DW_FORM_addr:
+ case DW_FORM_sec_offset:
if (!do_loc)
- printf (" %#lx", uvalue);
+ printf (" 0x%lx", uvalue);
break;
+ case DW_FORM_flag_present:
case DW_FORM_flag:
case DW_FORM_data1:
case DW_FORM_data2:
if (!do_loc)
{
uvalue = byte_get (data, 4);
- printf (" %lx", uvalue);
- printf (" %lx", (unsigned long) byte_get (data + 4, 4));
+ printf (" 0x%lx", uvalue);
+ printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
}
if ((do_loc || do_debug_loc || do_debug_ranges)
&& num_debug_info_entries == 0)
break;
case DW_FORM_block:
+ case DW_FORM_exprloc:
uvalue = read_leb128 (data, & bytes_read, 0);
block_start = data + bytes_read;
if (do_loc)
/* Handled above. */
break;
+ case DW_FORM_ref_sig8:
+ if (!do_loc)
+ {
+ int i;
+ printf (" signature: ");
+ for (i = 0; i < 8; i++)
+ {
+ printf ("%02x", (unsigned) byte_get (data, 1));
+ data += 1;
+ }
+ }
+ else
+ data += 8;
+ break;
+
default:
warn (_("Unrecognized form: %lu\n"), form);
break;
}
- /* For some attributes we can display further information. */
if ((do_loc || do_debug_loc || do_debug_ranges)
&& num_debug_info_entries == 0)
{
case DW_AT_frame_base:
have_frame_base = 1;
case DW_AT_location:
+ case DW_AT_string_length:
+ case DW_AT_return_addr:
case DW_AT_data_member_location:
case DW_AT_vtable_elem_location:
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_stride:
- case DW_AT_upper_bound:
- case DW_AT_lower_bound:
- if (form == DW_FORM_data4 || form == DW_FORM_data8)
+ case DW_AT_segment:
+ case DW_AT_static_link:
+ case DW_AT_use_location:
+ if (form == DW_FORM_data4
+ || form == DW_FORM_data8
+ || form == DW_FORM_sec_offset)
{
/* Process location list. */
- unsigned int max = debug_info_p->max_loc_offsets;
+ unsigned int lmax = debug_info_p->max_loc_offsets;
unsigned int num = debug_info_p->num_loc_offsets;
- if (max == 0 || num >= max)
+ if (lmax == 0 || num >= lmax)
{
- max += 1024;
- debug_info_p->loc_offsets
- = xcrealloc (debug_info_p->loc_offsets,
- max, sizeof (*debug_info_p->loc_offsets));
- debug_info_p->have_frame_base
- = xcrealloc (debug_info_p->have_frame_base,
- max, sizeof (*debug_info_p->have_frame_base));
- debug_info_p->max_loc_offsets = max;
+ lmax += 1024;
+ debug_info_p->loc_offsets = (long unsigned int *)
+ xcrealloc (debug_info_p->loc_offsets,
+ lmax, sizeof (*debug_info_p->loc_offsets));
+ debug_info_p->have_frame_base = (int *)
+ xcrealloc (debug_info_p->have_frame_base,
+ lmax, sizeof (*debug_info_p->have_frame_base));
+ debug_info_p->max_loc_offsets = lmax;
}
debug_info_p->loc_offsets [num] = uvalue;
debug_info_p->have_frame_base [num] = have_frame_base;
debug_info_p->num_loc_offsets++;
}
break;
-
+
case DW_AT_low_pc:
if (need_base_address)
debug_info_p->base_address = uvalue;
break;
case DW_AT_ranges:
- if (form == DW_FORM_data4 || form == DW_FORM_data8)
+ if (form == DW_FORM_data4
+ || form == DW_FORM_data8
+ || form == DW_FORM_sec_offset)
{
/* Process range list. */
- unsigned int max = debug_info_p->max_range_lists;
+ unsigned int lmax = debug_info_p->max_range_lists;
unsigned int num = debug_info_p->num_range_lists;
- if (max == 0 || num >= max)
+ if (lmax == 0 || num >= lmax)
{
- max += 1024;
- debug_info_p->range_lists
- = xcrealloc (debug_info_p->range_lists,
- max, sizeof (*debug_info_p->range_lists));
- debug_info_p->max_range_lists = max;
+ lmax += 1024;
+ debug_info_p->range_lists = (long unsigned int *)
+ xcrealloc (debug_info_p->range_lists,
+ lmax, sizeof (*debug_info_p->range_lists));
+ debug_info_p->max_range_lists = lmax;
}
debug_info_p->range_lists [num] = uvalue;
debug_info_p->num_range_lists++;
if (do_loc)
return data;
+ /* For some attributes we can display further information. */
printf ("\t");
switch (attribute)
case DW_AT_language:
switch (uvalue)
{
- case DW_LANG_C: printf ("(non-ANSI C)"); break;
+ /* Ordered by the numeric value of these constants. */
case DW_LANG_C89: printf ("(ANSI C)"); break;
+ case DW_LANG_C: printf ("(non-ANSI C)"); break;
+ case DW_LANG_Ada83: printf ("(Ada)"); break;
case DW_LANG_C_plus_plus: printf ("(C++)"); break;
+ case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
+ case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
- case DW_LANG_Modula2: printf ("(Modula 2)"); break;
case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
- case DW_LANG_Ada83: printf ("(Ada)"); break;
- case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
- case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
+ case DW_LANG_Modula2: printf ("(Modula 2)"); break;
/* DWARF 2.1 values. */
+ case DW_LANG_Java: printf ("(Java)"); break;
case DW_LANG_C99: printf ("(ANSI C99)"); break;
case DW_LANG_Ada95: printf ("(ADA 95)"); break;
case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
+ /* DWARF 3 values. */
+ case DW_LANG_PLI: printf ("(PLI)"); break;
+ case DW_LANG_ObjC: printf ("(Objective C)"); break;
+ case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
+ case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
+ case DW_LANG_D: printf ("(D)"); break;
+ /* DWARF 4 values. */
+ case DW_LANG_Python: printf ("(Python)"); break;
/* MIPS extension. */
case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
/* UPC extension. */
case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
default:
- printf ("(Unknown: %lx)", uvalue);
+ if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
+ printf ("(implementation defined: %lx)", uvalue);
+ else
+ printf ("(Unknown: %lx)", uvalue);
break;
}
break;
case DW_ATE_signed_char: printf ("(signed char)"); break;
case DW_ATE_unsigned: printf ("(unsigned)"); break;
case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
- /* DWARF 2.1 value. */
+ /* DWARF 2.1 values: */
case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
case DW_ATE_decimal_float: printf ("(decimal float)"); break;
+ /* DWARF 3 values: */
+ case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
+ case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
+ case DW_ATE_edited: printf ("(edited)"); break;
+ case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
+ case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
+ /* HP extensions: */
+ case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
+ case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
+ case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
+ case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
+ case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
+ case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
+ case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
+
default:
if (uvalue >= DW_ATE_lo_user
&& uvalue <= DW_ATE_hi_user)
case DW_AT_frame_base:
have_frame_base = 1;
case DW_AT_location:
+ case DW_AT_string_length:
+ case DW_AT_return_addr:
case DW_AT_data_member_location:
case DW_AT_vtable_elem_location:
+ case DW_AT_segment:
+ case DW_AT_static_link:
+ case DW_AT_use_location:
+ if (form == DW_FORM_data4
+ || form == DW_FORM_data8
+ || form == DW_FORM_sec_offset)
+ printf (_("(location list)"));
+ /* Fall through. */
case DW_AT_allocated:
case DW_AT_associated:
case DW_AT_data_location:
printf ("(");
need_frame_base = decode_location_expression (block_start,
pointer_size,
+ offset_size,
+ dwarf_version,
uvalue,
- cu_offset);
+ cu_offset, section);
printf (")");
if (need_frame_base && !have_frame_base)
printf (_(" [without DW_AT_frame_base]"));
}
- else if (form == DW_FORM_data4 || form == DW_FORM_data8)
- printf (_("(location list)"));
+ break;
+ case DW_AT_import:
+ {
+ if (form == DW_FORM_ref_sig8)
+ break;
+
+ if (form == DW_FORM_ref1
+ || form == DW_FORM_ref2
+ || form == DW_FORM_ref4)
+ uvalue += cu_offset;
+
+ if (uvalue >= section->size)
+ warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"),
+ uvalue, (unsigned long) (orig_data - section->start));
+ else
+ {
+ unsigned long abbrev_number;
+ abbrev_entry * entry;
+
+ abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
+
+ printf ("[Abbrev Number: %ld", abbrev_number);
+ for (entry = first_abbrev; entry != NULL; entry = entry->next)
+ if (entry->entry == abbrev_number)
+ break;
+ if (entry != NULL)
+ printf (" (%s)", get_TAG_name (entry->tag));
+ printf ("]");
+ }
+ }
break;
default:
case DW_AT_call_column: return "DW_AT_call_column";
case DW_AT_call_file: return "DW_AT_call_file";
case DW_AT_call_line: return "DW_AT_call_line";
- /* SGI/MIPS extensions. */
- case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
- case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
- case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
- case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
- case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
- case DW_AT_MIPS_software_pipeline_depth:
- return "DW_AT_MIPS_software_pipeline_depth";
- case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
- case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
- case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
- case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
- case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
+ case DW_AT_description: return "DW_AT_description";
+ case DW_AT_binary_scale: return "DW_AT_binary_scale";
+ case DW_AT_decimal_scale: return "DW_AT_decimal_scale";
+ case DW_AT_small: return "DW_AT_small";
+ case DW_AT_decimal_sign: return "DW_AT_decimal_sign";
+ case DW_AT_digit_count: return "DW_AT_digit_count";
+ case DW_AT_picture_string: return "DW_AT_picture_string";
+ case DW_AT_mutable: return "DW_AT_mutable";
+ case DW_AT_threads_scaled: return "DW_AT_threads_scaled";
+ case DW_AT_explicit: return "DW_AT_explicit";
+ case DW_AT_object_pointer: return "DW_AT_object_pointer";
+ case DW_AT_endianity: return "DW_AT_endianity";
+ case DW_AT_elemental: return "DW_AT_elemental";
+ case DW_AT_pure: return "DW_AT_pure";
+ case DW_AT_recursive: return "DW_AT_recursive";
+ /* DWARF 4 values. */
+ case DW_AT_signature: return "DW_AT_signature";
+ case DW_AT_main_subprogram: return "DW_AT_main_subprogram";
+ case DW_AT_data_bit_offset: return "DW_AT_data_bit_offset";
+ case DW_AT_const_expr: return "DW_AT_const_expr";
+ case DW_AT_enum_class: return "DW_AT_enum_class";
+ case DW_AT_linkage_name: return "DW_AT_linkage_name";
+
+ /* HP and SGI/MIPS extensions. */
+ case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
+ case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
+ case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
+ case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
+ case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth";
+ case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
+ case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
+ case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
+ case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
+ case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
+
+ /* HP Extensions. */
+ case DW_AT_HP_block_index: return "DW_AT_HP_block_index";
+ case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list";
+ case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section";
+ case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr";
+ case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference";
+ case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level";
+ case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id";
+ case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags";
+ case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc";
+ case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc";
+ case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable";
+ case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name";
+ case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags";
+
+ /* One value is shared by the MIPS and HP extensions: */
+ case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
+
/* GNU extensions. */
- case DW_AT_sf_names: return "DW_AT_sf_names";
- case DW_AT_src_info: return "DW_AT_src_info";
- case DW_AT_mac_info: return "DW_AT_mac_info";
- case DW_AT_src_coords: return "DW_AT_src_coords";
- case DW_AT_body_begin: return "DW_AT_body_begin";
- case DW_AT_body_end: return "DW_AT_body_end";
- case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
+ case DW_AT_sf_names: return "DW_AT_sf_names";
+ case DW_AT_src_info: return "DW_AT_src_info";
+ case DW_AT_mac_info: return "DW_AT_mac_info";
+ case DW_AT_src_coords: return "DW_AT_src_coords";
+ case DW_AT_body_begin: return "DW_AT_body_begin";
+ case DW_AT_body_end: return "DW_AT_body_end";
+ case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
+ case DW_AT_GNU_guarded_by: return "DW_AT_GNU_guarded_by";
+ case DW_AT_GNU_pt_guarded_by: return "DW_AT_GNU_pt_guarded_by";
+ case DW_AT_GNU_guarded: return "DW_AT_GNU_guarded";
+ case DW_AT_GNU_pt_guarded: return "DW_AT_GNU_pt_guarded";
+ case DW_AT_GNU_locks_excluded: return "DW_AT_GNU_locks_excluded";
+ case DW_AT_GNU_exclusive_locks_required: return "DW_AT_GNU_exclusive_locks_required";
+ case DW_AT_GNU_shared_locks_required: return "DW_AT_GNU_shared_locks_required";
+ case DW_AT_GNU_odr_signature: return "DW_AT_GNU_odr_signature";
+ case DW_AT_use_GNAT_descriptive_type: return "DW_AT_use_GNAT_descriptive_type";
+ case DW_AT_GNAT_descriptive_type: return "DW_AT_GNAT_descriptive_type";
+
/* UPC extension. */
case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
+
+ /* PGI (STMicroelectronics) extensions. */
+ case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase";
+ case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset";
+ case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride";
+
default:
{
static char buffer[100];
static unsigned char *
read_and_display_attr (unsigned long attribute,
unsigned long form,
- unsigned char *data,
+ unsigned char * data,
unsigned long cu_offset,
unsigned long pointer_size,
unsigned long offset_size,
int dwarf_version,
- debug_info *debug_info_p,
- int do_loc)
+ debug_info * debug_info_p,
+ int do_loc,
+ struct dwarf_section * section)
{
if (!do_loc)
- printf (" %-18s:", get_AT_name (attribute));
+ printf (" %-18s:", get_AT_name (attribute));
data = read_and_display_attr_value (attribute, form, data, cu_offset,
pointer_size, offset_size,
dwarf_version, debug_info_p,
- do_loc);
+ do_loc, section);
if (!do_loc)
printf ("\n");
return data;
/* Process the contents of a .debug_info section. If do_loc is non-zero
then we are scanning for location lists and we do not want to display
- anything to the user. */
+ anything to the user. If do_types is non-zero, we are processing
+ a .debug_types section instead of a .debug_info section. */
static int
-process_debug_info (struct dwarf_section *section, void *file,
- int do_loc)
+process_debug_info (struct dwarf_section *section,
+ void *file,
+ enum dwarf_section_display_enum abbrev_sec,
+ int do_loc,
+ int do_types)
{
unsigned char *start = section->start;
unsigned char *end = start + section->size;
unsigned int num_units = 0;
if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
+ && num_debug_info_entries == 0
+ && ! do_types)
{
unsigned long length;
length = byte_get (section_begin + 4, 8);
section_begin += length + 12;
}
+ else if (length >= 0xfffffff0 && length < 0xffffffff)
+ {
+ warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name);
+ return 0;
+ }
else
section_begin += length + 4;
+
+ /* Negative values are illegal, they may even cause infinite
+ looping. This can happen if we can't accurately apply
+ relocations to an object file. */
+ if ((signed long) length <= 0)
+ {
+ warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name);
+ return 0;
+ }
}
if (num_units == 0)
}
/* Then allocate an array to hold the information. */
- debug_information = cmalloc (num_units,
- sizeof (* debug_information));
+ debug_information = (debug_info *) cmalloc (num_units,
+ sizeof (* debug_information));
if (debug_information == NULL)
{
error (_("Not enough memory for a debug info array of %u entries"),
if (!do_loc)
{
- printf (_("The section %s contains:\n\n"), section->name);
+ printf (_("Contents of the %s section:\n\n"), section->name);
load_debug_section (str, file);
}
- load_debug_section (abbrev, file);
- if (debug_displays [abbrev].section.start == NULL)
+ load_debug_section (abbrev_sec, file);
+ if (debug_displays [abbrev_sec].section.start == NULL)
{
warn (_("Unable to locate %s section!\n"),
- debug_displays [abbrev].section.name);
+ debug_displays [abbrev_sec].section.name);
return 0;
}
{
DWARF2_Internal_CompUnit compunit;
unsigned char *hdrptr;
- unsigned char *cu_abbrev_offset_ptr;
unsigned char *tags;
int level;
unsigned long cu_offset;
int offset_size;
int initial_length_size;
+ unsigned char signature[8] = { 0 };
+ unsigned long type_offset = 0;
hdrptr = start;
hdrptr += 2;
cu_offset = start - section_begin;
- start += compunit.cu_length + initial_length_size;
- cu_abbrev_offset_ptr = hdrptr;
compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
hdrptr += offset_size;
compunit.cu_pointer_size = byte_get (hdrptr, 1);
hdrptr += 1;
+
+ if (do_types)
+ {
+ int i;
+
+ for (i = 0; i < 8; i++)
+ {
+ signature[i] = byte_get (hdrptr, 1);
+ hdrptr += 1;
+ }
+
+ type_offset = byte_get (hdrptr, offset_size);
+ hdrptr += offset_size;
+ }
+
if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
+ && num_debug_info_entries == 0
+ && ! do_types)
{
debug_information [unit].cu_offset = cu_offset;
debug_information [unit].pointer_size
= compunit.cu_pointer_size;
+ debug_information [unit].offset_size = offset_size;
+ debug_information [unit].dwarf_version = compunit.cu_version;
debug_information [unit].base_address = 0;
debug_information [unit].loc_offsets = NULL;
debug_information [unit].have_frame_base = NULL;
debug_information [unit].num_range_lists = 0;
}
- tags = hdrptr;
-
if (!do_loc)
{
printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
- printf (_(" Length: %ld\n"), compunit.cu_length);
+ printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length,
+ initial_length_size == 8 ? "64-bit" : "32-bit");
printf (_(" Version: %d\n"), compunit.cu_version);
printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
+ if (do_types)
+ {
+ int i;
+ printf (_(" Signature: "));
+ for (i = 0; i < 8; i++)
+ printf ("%02x", signature[i]);
+ printf ("\n");
+ printf (_(" Type Offset: 0x%lx\n"), type_offset);
+ }
+ }
+
+ if (cu_offset + compunit.cu_length + initial_length_size
+ > section->size)
+ {
+ warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"),
+ cu_offset, compunit.cu_length);
+ break;
}
+ tags = hdrptr;
+ start += compunit.cu_length + initial_length_size;
- if (compunit.cu_version != 2 && compunit.cu_version != 3)
+ if (compunit.cu_version != 2
+ && compunit.cu_version != 3
+ && compunit.cu_version != 4)
{
- warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
+ warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"),
+ cu_offset, compunit.cu_version);
continue;
}
/* Process the abbrevs used by this compilation unit. DWARF
sections under Mach-O have non-zero addresses. */
- process_abbrev_section
- ((unsigned char *) debug_displays [abbrev].section.start
- + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
- (unsigned char *) debug_displays [abbrev].section.start
- + debug_displays [abbrev].section.size);
+ if (compunit.cu_abbrev_offset >= debug_displays [abbrev_sec].section.size)
+ warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
+ (unsigned long) compunit.cu_abbrev_offset,
+ (unsigned long) debug_displays [abbrev_sec].section.size);
+ else
+ process_abbrev_section
+ ((unsigned char *) debug_displays [abbrev_sec].section.start
+ + compunit.cu_abbrev_offset,
+ (unsigned char *) debug_displays [abbrev_sec].section.start
+ + debug_displays [abbrev_sec].section.size);
level = 0;
while (tags < start)
{
unsigned int bytes_read;
unsigned long abbrev_number;
+ unsigned long die_offset;
abbrev_entry *entry;
abbrev_attr *attr;
+ die_offset = tags - section_begin;
+
abbrev_number = read_leb128 (tags, & bytes_read, 0);
tags += bytes_read;
- /* A null DIE marks the end of a list of children. */
+ /* A null DIE marks the end of a list of siblings or it may also be
+ a section padding. */
if (abbrev_number == 0)
{
+ /* Check if it can be a section padding for the last CU. */
+ if (level == 0 && start == end)
+ {
+ unsigned char *chk;
+
+ for (chk = tags; chk < start; chk++)
+ if (*chk != 0)
+ break;
+ if (chk == start)
+ break;
+ }
+
--level;
+ if (level < 0)
+ {
+ static unsigned num_bogus_warns = 0;
+
+ if (num_bogus_warns < 3)
+ {
+ warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
+ die_offset);
+ num_bogus_warns ++;
+ if (num_bogus_warns == 3)
+ warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
+ }
+ }
continue;
}
+ if (!do_loc)
+ printf (_(" <%d><%lx>: Abbrev Number: %lu"),
+ level, die_offset, abbrev_number);
+
/* Scan through the abbreviation list until we reach the
correct entry. */
for (entry = first_abbrev;
if (entry == NULL)
{
- warn (_("Unable to locate entry %lu in the abbreviation table\n"),
- abbrev_number);
+ if (!do_loc)
+ {
+ printf ("\n");
+ fflush (stdout);
+ }
+ warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
+ die_offset, abbrev_number);
return 0;
}
if (!do_loc)
- printf (_(" <%d><%lx>: Abbrev Number: %lu (%s)\n"),
- level,
- (unsigned long) (tags - section_begin
- - bytes_read),
- abbrev_number,
- get_TAG_name (entry->tag));
-
+ printf (" (%s)\n", get_TAG_name (entry->tag));
+
switch (entry->tag)
{
default:
need_base_address = 1;
break;
case DW_TAG_entry_point:
- case DW_TAG_inlined_subroutine:
case DW_TAG_subprogram:
need_base_address = 0;
/* Assuming that there is no DW_AT_frame_base. */
}
for (attr = entry->first_attr; attr; attr = attr->next)
- tags = read_and_display_attr (attr->attribute,
- attr->form,
- tags, cu_offset,
- compunit.cu_pointer_size,
- offset_size,
- compunit.cu_version,
- &debug_information [unit],
- do_loc);
-
+ {
+ if (! do_loc)
+ /* Show the offset from where the tag was extracted. */
+ printf (" <%2lx>", (unsigned long)(tags - section_begin));
+
+ tags = read_and_display_attr (attr->attribute,
+ attr->form,
+ tags, cu_offset,
+ compunit.cu_pointer_size,
+ offset_size,
+ compunit.cu_version,
+ debug_information + unit,
+ do_loc, section);
+ }
+
if (entry->children)
++level;
}
}
-
+
/* Set num_debug_info_entries here so that it can be used to check if
we need to process .debug_loc and .debug_ranges sections. */
if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
+ && num_debug_info_entries == 0
+ && ! do_types)
num_debug_info_entries = num_units;
-
+
if (!do_loc)
{
printf ("\n");
}
-
+
return 1;
}
last_pointer_size = 0;
warned_about_missing_comp_units = FALSE;
+ /* If we have already tried and failed to load the .debug_info
+ section then do not bother to repear the task. */
+ if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
+ return 0;
+
/* If we already have the information there is nothing else to do. */
if (num_debug_info_entries > 0)
return num_debug_info_entries;
if (load_debug_section (info, file)
- && process_debug_info (&debug_displays [info].section, file, 1))
+ && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0))
return num_debug_info_entries;
- else
- return 0;
+
+ num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
+ return 0;
}
static int
-display_debug_lines (struct dwarf_section *section, void *file)
+display_debug_lines_raw (struct dwarf_section *section,
+ unsigned char *data,
+ unsigned char *end)
{
unsigned char *start = section->start;
- unsigned char *data = start;
- unsigned char *end = start + section->size;
- printf (_("\nDump of debug contents of section %s:\n\n"),
- section->name);
-
- load_debug_info (file);
+ printf (_("Raw dump of debug contents of section %s:\n\n"),
+ section->name);
while (data < end)
{
- DWARF2_Internal_LineInfo info;
+ DWARF2_Internal_LineInfo linfo;
unsigned char *standard_opcodes;
unsigned char *end_of_sequence;
unsigned char *hdrptr;
+ unsigned long hdroff;
int initial_length_size;
int offset_size;
int i;
hdrptr = data;
+ hdroff = hdrptr - start;
/* Check the length of the block. */
- info.li_length = byte_get (hdrptr, 4);
+ linfo.li_length = byte_get (hdrptr, 4);
hdrptr += 4;
- if (info.li_length == 0xffffffff)
+ if (linfo.li_length == 0xffffffff)
{
/* This section is 64-bit DWARF 3. */
- info.li_length = byte_get (hdrptr, 8);
+ linfo.li_length = byte_get (hdrptr, 8);
hdrptr += 8;
offset_size = 8;
initial_length_size = 12;
initial_length_size = 4;
}
- if (info.li_length + initial_length_size > section->size)
+ if (linfo.li_length + initial_length_size > section->size)
{
warn
- (_("The line info appears to be corrupt - the section is too small\n"));
+ (_("The information in section %s appears to be corrupt - the section is too small\n"),
+ section->name);
return 0;
}
/* Check its version number. */
- info.li_version = byte_get (hdrptr, 2);
+ linfo.li_version = byte_get (hdrptr, 2);
hdrptr += 2;
- if (info.li_version != 2 && info.li_version != 3)
+ if (linfo.li_version != 2
+ && linfo.li_version != 3
+ && linfo.li_version != 4)
{
- warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
+ warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n"));
return 0;
}
- info.li_prologue_length = byte_get (hdrptr, offset_size);
+ linfo.li_prologue_length = byte_get (hdrptr, offset_size);
hdrptr += offset_size;
- info.li_min_insn_length = byte_get (hdrptr, 1);
+ linfo.li_min_insn_length = byte_get (hdrptr, 1);
hdrptr++;
- info.li_default_is_stmt = byte_get (hdrptr, 1);
+ 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++;
- info.li_line_base = byte_get (hdrptr, 1);
+ linfo.li_line_base = byte_get (hdrptr, 1);
hdrptr++;
- info.li_line_range = byte_get (hdrptr, 1);
+ linfo.li_line_range = byte_get (hdrptr, 1);
hdrptr++;
- info.li_opcode_base = byte_get (hdrptr, 1);
+ linfo.li_opcode_base = byte_get (hdrptr, 1);
hdrptr++;
/* Sign extend the line base field. */
- info.li_line_base <<= 24;
- info.li_line_base >>= 24;
+ linfo.li_line_base <<= 24;
+ linfo.li_line_base >>= 24;
- printf (_(" Length: %ld\n"), info.li_length);
- printf (_(" DWARF Version: %d\n"), info.li_version);
- printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
- printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
- printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
- printf (_(" Line Base: %d\n"), info.li_line_base);
- printf (_(" Line Range: %d\n"), info.li_line_range);
- printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
+ printf (_(" Offset: 0x%lx\n"), hdroff);
+ printf (_(" Length: %ld\n"), linfo.li_length);
+ 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);
+ printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base);
- end_of_sequence = data + info.li_length + initial_length_size;
+ end_of_sequence = data + linfo.li_length + initial_length_size;
- reset_state_machine (info.li_default_is_stmt);
+ reset_state_machine (linfo.li_default_is_stmt);
/* Display the contents of the Opcodes table. */
standard_opcodes = hdrptr;
printf (_("\n Opcodes:\n"));
- for (i = 1; i < info.li_opcode_base; i++)
+ for (i = 1; i < linfo.li_opcode_base; i++)
printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
/* Display the contents of the Directory table. */
- data = standard_opcodes + info.li_opcode_base - 1;
+ data = standard_opcodes + linfo.li_opcode_base - 1;
if (*data == 0)
printf (_("\n The Directory Table is empty.\n"));
while (*data != 0)
{
- printf (_(" %s\n"), data);
+ printf (" %s\n", data);
data += strlen ((char *) data) + 1;
}
unsigned char *name;
unsigned int bytes_read;
- printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
+ printf (" %d\t", ++state_machine_regs.last_file_entry);
name = data;
data += strlen ((char *) data) + 1;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ printf ("%lu\t", read_leb128 (data, & bytes_read, 0));
data += bytes_read;
- printf (_("%s\n"), name);
+ printf ("%s\n", name);
}
}
op_code = *data++;
- if (op_code >= info.li_opcode_base)
+ if (op_code >= linfo.li_opcode_base)
{
- op_code -= info.li_opcode_base;
- uladv = (op_code / info.li_line_range) * info.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);
- adv = (op_code % info.li_line_range) + info.li_line_base;
+ op_code -= linfo.li_opcode_base;
+ 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"),
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);
+ data += process_extended_line_op (data, linfo.li_default_is_stmt);
break;
case DW_LNS_copy:
case DW_LNS_advance_pc:
uladv = read_leb128 (data, & bytes_read, 0);
- uladv *= info.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 - info.li_opcode_base) / info.li_line_range)
- * info.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;
return 1;
}
-static int
-display_debug_pubnames (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
+typedef struct
{
- DWARF2_Internal_PubNames pubnames;
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
+ unsigned char *name;
+ unsigned int directory_index;
+ unsigned int modification_date;
+ unsigned int length;
+} File_Entry;
- printf (_("Contents of the %s section:\n\n"), section->name);
+/* Output a decoded representation of the .debug_line section. */
- while (start < end)
- {
- unsigned char *data;
- unsigned long offset;
- int offset_size, initial_length_size;
+static int
+display_debug_lines_decoded (struct dwarf_section *section,
+ unsigned char *data,
+ unsigned char *end)
+{
+ printf (_("Decoded dump of debug contents of section %s:\n\n"),
+ section->name);
- data = start;
+ while (data < end)
+ {
+ /* This loop amounts to one iteration per compilation unit. */
+ DWARF2_Internal_LineInfo linfo;
+ unsigned char *standard_opcodes;
+ unsigned char *end_of_sequence;
+ unsigned char *hdrptr;
+ int initial_length_size;
+ int offset_size;
+ int i;
+ File_Entry *file_table = NULL;
+ unsigned char **directory_table = NULL;
- pubnames.pn_length = byte_get (data, 4);
- data += 4;
- if (pubnames.pn_length == 0xffffffff)
- {
- pubnames.pn_length = byte_get (data, 8);
- data += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
+ hdrptr = data;
- pubnames.pn_version = byte_get (data, 2);
- data += 2;
- pubnames.pn_offset = byte_get (data, offset_size);
- data += offset_size;
- pubnames.pn_size = byte_get (data, offset_size);
- data += offset_size;
+ /* Extract information from the Line Number Program Header.
+ (section 6.2.4 in the Dwarf3 doc). */
- start += pubnames.pn_length + initial_length_size;
+ /* Get the length of this CU's line number information block. */
+ linfo.li_length = byte_get (hdrptr, 4);
+ hdrptr += 4;
- if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
+ if (linfo.li_length == 0xffffffff)
+ {
+ /* This section is 64-bit DWARF 3. */
+ linfo.li_length = byte_get (hdrptr, 8);
+ hdrptr += 8;
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ if (linfo.li_length + initial_length_size > section->size)
+ {
+ warn (_("The line info appears to be corrupt - "
+ "the section is too small\n"));
+ return 0;
+ }
+
+ /* Get this CU's Line Number Block version number. */
+ linfo.li_version = byte_get (hdrptr, 2);
+ hdrptr += 2;
+ if (linfo.li_version != 2
+ && linfo.li_version != 3
+ && linfo.li_version != 4)
+ {
+ warn (_("Only DWARF version 2, 3 and 4 line info is currently "
+ "supported.\n"));
+ return 0;
+ }
+
+ linfo.li_prologue_length = byte_get (hdrptr, offset_size);
+ hdrptr += offset_size;
+ linfo.li_min_insn_length = byte_get (hdrptr, 1);
+ hdrptr++;
+ if (linfo.li_version >= 4)
{
- static int warned = 0;
-
- if (! warned)
+ linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
+ hdrptr++;
+ if (linfo.li_max_ops_per_insn == 0)
{
- warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
- warned = 1;
+ 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);
+ hdrptr++;
+ linfo.li_line_range = byte_get (hdrptr, 1);
+ hdrptr++;
+ linfo.li_opcode_base = byte_get (hdrptr, 1);
+ hdrptr++;
+
+ /* Sign extend the line base field. */
+ linfo.li_line_base <<= 24;
+ linfo.li_line_base >>= 24;
+
+ /* Find the end of this CU's Line Number Information Block. */
+ end_of_sequence = data + linfo.li_length + initial_length_size;
+
+ reset_state_machine (linfo.li_default_is_stmt);
+
+ /* Save a pointer to the contents of the Opcodes table. */
+ standard_opcodes = hdrptr;
+
+ /* Traverse the Directory table just to count entries. */
+ data = standard_opcodes + linfo.li_opcode_base - 1;
+ if (*data != 0)
+ {
+ unsigned int n_directories = 0;
+ unsigned char *ptr_directory_table = data;
+
+ while (*data != 0)
+ {
+ data += strlen ((char *) data) + 1;
+ n_directories++;
+ }
+
+ /* Go through the directory table again to save the directories. */
+ directory_table = (unsigned char **)
+ xmalloc (n_directories * sizeof (unsigned char *));
+
+ i = 0;
+ while (*ptr_directory_table != 0)
+ {
+ directory_table[i] = ptr_directory_table;
+ ptr_directory_table += strlen ((char *) ptr_directory_table) + 1;
+ i++;
+ }
+ }
+ /* Skip the NUL at the end of the table. */
+ data++;
+
+ /* Traverse the File Name table just to count the entries. */
+ if (*data != 0)
+ {
+ unsigned int n_files = 0;
+ unsigned char *ptr_file_name_table = data;
+
+ while (*data != 0)
+ {
+ unsigned int bytes_read;
+
+ /* Skip Name, directory index, last modification time and length
+ of file. */
+ data += strlen ((char *) data) + 1;
+ read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+
+ n_files++;
+ }
+
+ /* Go through the file table again to save the strings. */
+ file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry));
+
+ i = 0;
+ while (*ptr_file_name_table != 0)
+ {
+ unsigned int bytes_read;
+
+ file_table[i].name = ptr_file_name_table;
+ ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1;
+
+ /* We are not interested in directory, time or size. */
+ file_table[i].directory_index = read_leb128 (ptr_file_name_table,
+ & bytes_read, 0);
+ ptr_file_name_table += bytes_read;
+ file_table[i].modification_date = read_leb128 (ptr_file_name_table,
+ & bytes_read, 0);
+ ptr_file_name_table += bytes_read;
+ file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0);
+ ptr_file_name_table += bytes_read;
+ i++;
+ }
+ i = 0;
+
+ /* Print the Compilation Unit's name and a header. */
+ if (directory_table == NULL)
+ {
+ printf (_("CU: %s:\n"), file_table[0].name);
+ printf (_("File name Line number Starting address\n"));
+ }
+ else
+ {
+ if (do_wide || strlen ((char *) directory_table[0]) < 76)
+ printf (_("CU: %s/%s:\n"), directory_table[0],
+ file_table[0].name);
+ else
+ printf ("%s:\n", file_table[0].name);
+
+ printf (_("File name Line number Starting address\n"));
+ }
+ }
+
+ /* Skip the NUL at the end of the table. */
+ data++;
+
+ /* This loop iterates through the Dwarf Line Number Program. */
+ while (data < end_of_sequence)
+ {
+ unsigned char op_code;
+ int adv;
+ unsigned long int uladv;
+ unsigned int bytes_read;
+ int is_special_opcode = 0;
+
+ op_code = *data++;
+
+ if (op_code >= linfo.li_opcode_base)
+ {
+ op_code -= linfo.li_opcode_base;
+ 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;
+ is_special_opcode = 1;
+ }
+ else switch (op_code)
+ {
+ case DW_LNS_extended_op:
+ {
+ unsigned int ext_op_code_len;
+ unsigned char ext_op_code;
+ unsigned char *op_code_data = data;
+
+ ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0);
+ op_code_data += bytes_read;
+
+ if (ext_op_code_len == 0)
+ {
+ warn (_("badly formed extended line op encountered!\n"));
+ break;
+ }
+ ext_op_code_len += bytes_read;
+ ext_op_code = *op_code_data++;
+
+ switch (ext_op_code)
+ {
+ case DW_LNE_end_sequence:
+ reset_state_machine (linfo.li_default_is_stmt);
+ break;
+ 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:
+ {
+ unsigned int dir_index = 0;
+
+ ++state_machine_regs.last_file_entry;
+ op_code_data += strlen ((char *) op_code_data) + 1;
+ dir_index = read_leb128 (op_code_data, & bytes_read, 0);
+ op_code_data += bytes_read;
+ read_leb128 (op_code_data, & bytes_read, 0);
+ op_code_data += bytes_read;
+ read_leb128 (op_code_data, & bytes_read, 0);
+
+ printf ("%s:\n", directory_table[dir_index]);
+ break;
+ }
+ default:
+ printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read);
+ break;
+ }
+ data += ext_op_code_len;
+ break;
+ }
+ case DW_LNS_copy:
+ break;
+
+ case DW_LNS_advance_pc:
+ uladv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ 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:
+ adv = read_leb128 (data, & bytes_read, 1);
+ data += bytes_read;
+ state_machine_regs.line += adv;
+ break;
+
+ case DW_LNS_set_file:
+ adv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ state_machine_regs.file = adv;
+ if (file_table[state_machine_regs.file - 1].directory_index == 0)
+ {
+ /* If directory index is 0, that means current directory. */
+ printf ("\n./%s:[++]\n",
+ file_table[state_machine_regs.file - 1].name);
+ }
+ else
+ {
+ /* The directory index starts counting at 1. */
+ printf ("\n%s/%s:\n",
+ directory_table[file_table[state_machine_regs.file - 1].directory_index - 1],
+ file_table[state_machine_regs.file - 1].name);
+ }
+ break;
+
+ case DW_LNS_set_column:
+ uladv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ state_machine_regs.column = uladv;
+ break;
+
+ case DW_LNS_negate_stmt:
+ adv = state_machine_regs.is_stmt;
+ adv = ! adv;
+ state_machine_regs.is_stmt = adv;
+ break;
+
+ case DW_LNS_set_basic_block:
+ state_machine_regs.basic_block = 1;
+ break;
+
+ case DW_LNS_const_add_pc:
+ 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:
+ break;
+
+ case DW_LNS_set_epilogue_begin:
+ break;
+
+ case DW_LNS_set_isa:
+ uladv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ printf (_(" Set ISA to %lu\n"), uladv);
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ 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;
+ }
+
+ /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
+ to the DWARF address/line matrix. */
+ if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
+ || (op_code == DW_LNS_copy))
+ {
+ const unsigned int MAX_FILENAME_LENGTH = 35;
+ char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
+ char *newFileName = NULL;
+ size_t fileNameLength = strlen (fileName);
+
+ if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
+ {
+ newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1);
+ /* Truncate file name */
+ strncpy (newFileName,
+ fileName + fileNameLength - MAX_FILENAME_LENGTH,
+ MAX_FILENAME_LENGTH + 1);
+ }
+ else
+ {
+ newFileName = (char *) xmalloc (fileNameLength + 1);
+ strncpy (newFileName, fileName, fileNameLength + 1);
+ }
+
+ if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
+ {
+ 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
+ {
+ 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)
+ printf ("\n");
+
+ free (newFileName);
+ }
+ }
+ free (file_table);
+ file_table = NULL;
+ free (directory_table);
+ directory_table = NULL;
+ putchar ('\n');
+ }
+
+ return 1;
+}
+
+static int
+display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
+{
+ unsigned char *data = section->start;
+ unsigned char *end = data + section->size;
+ int retValRaw = 1;
+ int retValDecoded = 1;
+
+ if (do_debug_lines == 0)
+ do_debug_lines |= FLAG_DEBUG_LINES_RAW;
+
+ if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
+ retValRaw = display_debug_lines_raw (section, data, end);
+
+ if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
+ retValDecoded = display_debug_lines_decoded (section, data, end);
+
+ if (!retValRaw || !retValDecoded)
+ return 0;
+
+ return 1;
+}
+
+static debug_info *
+find_debug_info_for_offset (unsigned long offset)
+{
+ unsigned int i;
+
+ if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
+ return NULL;
+
+ for (i = 0; i < num_debug_info_entries; i++)
+ if (debug_information[i].cu_offset == offset)
+ return debug_information + i;
+
+ return NULL;
+}
+
+static int
+display_debug_pubnames (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
+{
+ DWARF2_Internal_PubNames names;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
+
+ /* It does not matter if this load fails,
+ we test for that later on. */
+ load_debug_info (file);
+
+ printf (_("Contents of the %s section:\n\n"), section->name);
+
+ while (start < end)
+ {
+ unsigned char *data;
+ unsigned long offset;
+ int offset_size, initial_length_size;
+
+ data = start;
+
+ names.pn_length = byte_get (data, 4);
+ data += 4;
+ if (names.pn_length == 0xffffffff)
+ {
+ names.pn_length = byte_get (data, 8);
+ data += 8;
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ names.pn_version = byte_get (data, 2);
+ data += 2;
+
+ names.pn_offset = byte_get (data, offset_size);
+ data += offset_size;
+
+ if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
+ && num_debug_info_entries > 0
+ && find_debug_info_for_offset (names.pn_offset) == NULL)
+ warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
+ names.pn_offset, section->name);
+
+ names.pn_size = byte_get (data, offset_size);
+ data += offset_size;
+
+ start += names.pn_length + initial_length_size;
+
+ if (names.pn_version != 2 && names.pn_version != 3)
+ {
+ static int warned = 0;
+
+ if (! warned)
+ {
+ warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
+ warned = 1;
}
continue;
}
printf (_(" Length: %ld\n"),
- pubnames.pn_length);
+ names.pn_length);
printf (_(" Version: %d\n"),
- pubnames.pn_version);
- printf (_(" Offset into .debug_info section: %ld\n"),
- pubnames.pn_offset);
+ names.pn_version);
+ printf (_(" Offset into .debug_info section: 0x%lx\n"),
+ names.pn_offset);
printf (_(" Size of area in .debug_info section: %ld\n"),
- pubnames.pn_size);
+ names.pn_size);
printf (_("\n Offset\tName\n"));
if (offset != 0)
{
data += offset_size;
- printf (" %-6ld\t\t%s\n", offset, data);
+ printf (" %-6lx\t%s\n", offset, data);
data += strlen ((char *) data) + 1;
}
}
unsigned int lineno;
const char *string;
- op = *curr;
+ op = (enum dwarf_macinfo_record_type) *curr;
curr++;
switch (op)
{
abbrev_attr *attr;
- printf (_(" %ld %s [%s]\n"),
+ printf (" %ld %s [%s]\n",
entry->entry,
get_TAG_name (entry->tag),
entry->children ? _("has children") : _("no children"));
for (attr = entry->first_attr; attr; attr = attr->next)
- printf (_(" %-18s %s\n"),
+ printf (" %-18s %s\n",
get_AT_name (attr->attribute),
get_FORM_name (attr->form));
}
return 0;
}
- load_debug_info (file);
+ if (load_debug_info (file) == 0)
+ {
+ warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
+ section->name);
+ return 0;
+ }
/* Check the order of location list in .debug_info section. If
offsets of location lists are in the ascending order, we can
seen_first_offset = 0;
for (i = first; i < num_debug_info_entries; i++)
{
- unsigned long begin;
- unsigned long end;
+ dwarf_vma begin;
+ dwarf_vma end;
unsigned short length;
unsigned long offset;
unsigned int pointer_size;
+ unsigned int offset_size;
+ int dwarf_version;
unsigned long cu_offset;
unsigned long base_address;
int need_frame_base;
pointer_size = debug_information [i].pointer_size;
cu_offset = debug_information [i].cu_offset;
+ offset_size = debug_information [i].offset_size;
+ dwarf_version = debug_information [i].dwarf_version;
for (j = 0; j < debug_information [i].num_loc_offsets; j++)
{
has_frame_base = debug_information [i].have_frame_base [j];
/* DWARF sections under Mach-O have non-zero addresses. */
- offset = debug_information [i].loc_offsets [j] - section->address;
+ offset = debug_information [i].loc_offsets [j] - section->address;
next = section_begin + offset;
base_address = debug_information [i].base_address;
{
if (start < next)
warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
+ (unsigned long) (start - section_begin),
+ (unsigned long) (next - section_begin));
else if (start > next)
warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
+ (unsigned long) (start - section_begin),
+ (unsigned long) (next - section_begin));
}
start = next;
break;
}
- begin = byte_get (start, pointer_size);
+ /* Note: we use sign extension here in order to be sure that
+ we can detect the -1 escape value. Sign extension into the
+ top 32 bits of a 32-bit address will not affect the values
+ that we display since we always show hex values, and always
+ the bottom 32-bits. */
+ begin = byte_get_signed (start, pointer_size);
start += pointer_size;
- end = byte_get (start, pointer_size);
+ end = byte_get_signed (start, pointer_size);
start += pointer_size;
+ printf (" %8.8lx ", offset);
+
if (begin == 0 && end == 0)
{
- printf (_(" %8.8lx <End of list>\n"), offset);
+ printf (_("<End of list>\n"));
break;
}
/* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
+ if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
{
base_address = end;
- printf (_(" %8.8lx %8.8lx %8.8lx (base address)\n"),
- offset, begin, end);
+ print_dwarf_vma (begin, pointer_size);
+ print_dwarf_vma (end, pointer_size);
+ printf (_("(base address)\n"));
continue;
}
break;
}
- printf (" %8.8lx %8.8lx %8.8lx (",
- offset, begin + base_address, end + base_address);
+ print_dwarf_vma (begin + base_address, pointer_size);
+ print_dwarf_vma (end + base_address, pointer_size);
+
+ putchar ('(');
need_frame_base = decode_location_expression (start,
pointer_size,
+ offset_size,
+ dwarf_version,
length,
- cu_offset);
+ cu_offset, section);
putchar (')');
if (need_frame_base && !has_frame_base)
}
}
}
+
+ if (start < section_end)
+ warn (_("There are %ld unused bytes at the end of section %s\n"),
+ (long) (section_end - start), section->name);
+ putchar ('\n');
return 1;
}
return 1;
}
-
static int
display_debug_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, 0);
+ return process_debug_info (section, file, abbrev, 0, 0);
+}
+
+static int
+display_debug_types (struct dwarf_section *section, void *file)
+{
+ return process_debug_info (section, file, abbrev, 0, 1);
}
+static int
+display_trace_info (struct dwarf_section *section, void *file)
+{
+ return process_debug_info (section, file, trace_abbrev, 0, 0);
+}
static int
display_debug_aranges (struct dwarf_section *section,
unsigned char *start = section->start;
unsigned char *end = start + section->size;
- printf (_("The section %s contains:\n\n"), section->name);
+ printf (_("Contents of the %s section:\n\n"), section->name);
+
+ /* It does not matter if this load fails,
+ we test for that later on. */
+ load_debug_info (file);
while (start < end)
{
unsigned char *hdrptr;
DWARF2_Internal_ARange arange;
- unsigned char *ranges;
- unsigned long length;
- unsigned long address;
+ unsigned char *addr_ranges;
+ dwarf_vma length;
+ dwarf_vma address;
unsigned char address_size;
int excess;
int offset_size;
arange.ar_info_offset = byte_get (hdrptr, offset_size);
hdrptr += offset_size;
+ if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
+ && num_debug_info_entries > 0
+ && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
+ warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
+ arange.ar_info_offset, section->name);
+
arange.ar_pointer_size = byte_get (hdrptr, 1);
hdrptr += 1;
printf (_(" Length: %ld\n"), arange.ar_length);
printf (_(" Version: %d\n"), arange.ar_version);
- printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset);
+ printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset);
printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
warn (_("Pointer size + Segment size is not a power of two.\n"));
break;
}
-
+
if (address_size > 4)
printf (_("\n Address Length\n"));
else
printf (_("\n Address Length\n"));
- ranges = hdrptr;
+ addr_ranges = hdrptr;
/* Must pad to an alignment boundary that is twice the address size. */
excess = (hdrptr - start) % (2 * address_size);
if (excess)
- ranges += (2 * address_size) - excess;
+ addr_ranges += (2 * address_size) - excess;
start += arange.ar_length + initial_length_size;
- while (ranges + 2 * address_size <= start)
+ while (addr_ranges + 2 * address_size <= start)
{
- address = byte_get (ranges, address_size);
+ address = byte_get (addr_ranges, address_size);
- ranges += address_size;
+ addr_ranges += address_size;
- length = byte_get (ranges, address_size);
+ length = byte_get (addr_ranges, address_size);
- ranges += address_size;
+ addr_ranges += address_size;
- if (address_size > 4)
- printf (" 0x%16.16lx 0x%lx\n", address, length);
- else
- printf (" 0x%8.8lx 0x%lx\n", address, length);
+ printf (" ");
+ print_dwarf_vma (address, address_size);
+ print_dwarf_vma (length, address_size);
+ putchar ('\n');
}
}
return 1;
}
+/* Each debug_information[x].range_lists[y] gets this representation for
+ sorting purposes. */
+
+struct range_entry
+ {
+ /* The debug_information[x].range_lists[y] value. */
+ unsigned long ranges_offset;
+
+ /* Original debug_information to find parameters of the data. */
+ debug_info *debug_info_p;
+ };
+
+/* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
+
+static int
+range_entry_compar (const void *ap, const void *bp)
+{
+ const struct range_entry *a_re = (const struct range_entry *) ap;
+ const struct range_entry *b_re = (const struct range_entry *) bp;
+ const unsigned long a = a_re->ranges_offset;
+ const unsigned long b = b_re->ranges_offset;
+
+ return (a > b) - (b > a);
+}
+
static int
display_debug_ranges (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
{
unsigned char *start = section->start;
- unsigned char *section_end;
unsigned long bytes;
unsigned char *section_begin = start;
- unsigned int num_range_list = 0;
- unsigned long last_offset = 0;
- unsigned int first = 0;
- unsigned int i;
- unsigned int j;
- int seen_first_offset = 0;
- int use_debug_info = 1;
- unsigned char *next;
+ unsigned int num_range_list, i;
+ struct range_entry *range_entries, *range_entry_fill;
bytes = section->size;
- section_end = start + bytes;
if (bytes == 0)
{
return 0;
}
- load_debug_info (file);
+ if (load_debug_info (file) == 0)
+ {
+ warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
+ section->name);
+ return 0;
+ }
- /* Check the order of range list in .debug_info section. If
- offsets of range lists are in the ascending order, we can
- use `debug_information' directly. */
+ num_range_list = 0;
for (i = 0; i < num_debug_info_entries; i++)
- {
- unsigned int num;
+ num_range_list += debug_information [i].num_range_lists;
- num = debug_information [i].num_range_lists;
- num_range_list += num;
+ if (num_range_list == 0)
+ error (_("No range lists in .debug_info section!\n"));
- /* Check if we can use `debug_information' directly. */
- if (use_debug_info && num != 0)
- {
- if (!seen_first_offset)
- {
- /* This is the first range list. */
- last_offset = debug_information [i].range_lists [0];
- first = i;
- seen_first_offset = 1;
- j = 1;
- }
- else
- j = 0;
+ range_entries = (struct range_entry *)
+ xmalloc (sizeof (*range_entries) * num_range_list);
+ range_entry_fill = range_entries;
- for (; j < num; j++)
- {
- if (last_offset >
- debug_information [i].range_lists [j])
- {
- use_debug_info = 0;
- break;
- }
- last_offset = debug_information [i].range_lists [j];
- }
+ for (i = 0; i < num_debug_info_entries; i++)
+ {
+ debug_info *debug_info_p = &debug_information[i];
+ unsigned int j;
+
+ for (j = 0; j < debug_info_p->num_range_lists; j++)
+ {
+ range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
+ range_entry_fill->debug_info_p = debug_info_p;
+ range_entry_fill++;
}
}
- if (!use_debug_info)
- /* FIXME: Should we handle this case? */
- error (_("Range lists in .debug_info section aren't in ascending order!\n"));
-
- if (!seen_first_offset)
- error (_("No range lists in .debug_info section!\n"));
+ qsort (range_entries, num_range_list, sizeof (*range_entries),
+ range_entry_compar);
/* DWARF sections under Mach-O have non-zero addresses. */
- if (debug_information [first].num_range_lists > 0
- && debug_information [first].range_lists [0] != section->address)
+ if (range_entries[0].ranges_offset != section->address)
warn (_("Range lists in %s section start at 0x%lx\n"),
- section->name, debug_information [first].range_lists [0]);
+ section->name, range_entries[0].ranges_offset);
printf (_("Contents of the %s section:\n\n"), section->name);
printf (_(" Offset Begin End\n"));
- seen_first_offset = 0;
- for (i = first; i < num_debug_info_entries; i++)
+ for (i = 0; i < num_range_list; i++)
{
- unsigned long begin;
- unsigned long end;
- unsigned long offset;
+ struct range_entry *range_entry = &range_entries[i];
+ debug_info *debug_info_p = range_entry->debug_info_p;
unsigned int pointer_size;
+ unsigned long offset;
+ unsigned char *next;
unsigned long base_address;
- pointer_size = debug_information [i].pointer_size;
+ pointer_size = debug_info_p->pointer_size;
- for (j = 0; j < debug_information [i].num_range_lists; j++)
+ /* DWARF sections under Mach-O have non-zero addresses. */
+ offset = range_entry->ranges_offset - section->address;
+ next = section_begin + offset;
+ base_address = debug_info_p->base_address;
+
+ if (i > 0)
{
- /* DWARF sections under Mach-O have non-zero addresses. */
- offset = debug_information [i].range_lists [j] - section->address;
- next = section_begin + offset;
- base_address = debug_information [i].base_address;
+ if (start < next)
+ warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
+ (unsigned long) (start - section_begin),
+ (unsigned long) (next - section_begin), section->name);
+ else if (start > next)
+ warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
+ (unsigned long) (start - section_begin),
+ (unsigned long) (next - section_begin), section->name);
+ }
+ start = next;
- if (!seen_first_offset)
- seen_first_offset = 1;
- else
+ while (1)
+ {
+ dwarf_vma begin;
+ dwarf_vma end;
+
+ /* Note: we use sign extension here in order to be sure that
+ we can detect the -1 escape value. Sign extension into the
+ top 32 bits of a 32-bit address will not affect the values
+ that we display since we always show hex values, and always
+ the bottom 32-bits. */
+ begin = byte_get_signed (start, pointer_size);
+ start += pointer_size;
+ end = byte_get_signed (start, pointer_size);
+ start += pointer_size;
+
+ printf (" %8.8lx ", offset);
+
+ if (begin == 0 && end == 0)
{
- if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
- (long)(start - section_begin),
- (long)(next - section_begin), section->name);
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
- (long)(start - section_begin),
- (long)(next - section_begin), section->name);
+ printf (_("<End of list>\n"));
+ break;
}
- start = next;
- while (1)
+ /* Check base address specifiers. */
+ if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
{
- begin = byte_get (start, pointer_size);
- start += pointer_size;
- end = byte_get (start, pointer_size);
- start += pointer_size;
-
- if (begin == 0 && end == 0)
- {
- printf (_(" %8.8lx <End of list>\n"), offset);
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
- {
- base_address = end;
- printf (" %8.8lx %8.8lx %8.8lx (base address)\n",
- offset, begin, end);
- continue;
- }
+ base_address = end;
+ print_dwarf_vma (begin, pointer_size);
+ print_dwarf_vma (end, pointer_size);
+ printf ("(base address)\n");
+ continue;
+ }
- printf (" %8.8lx %8.8lx %8.8lx",
- offset, begin + base_address, end + base_address);
+ print_dwarf_vma (begin + base_address, pointer_size);
+ print_dwarf_vma (end + base_address, pointer_size);
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
+ if (begin == end)
+ fputs (_("(start == end)"), stdout);
+ else if (begin > end)
+ fputs (_("(start > end)"), stdout);
- putchar ('\n');
- }
+ putchar ('\n');
}
}
putchar ('\n');
+
+ free (range_entries);
+
return 1;
}
int ra;
unsigned char fde_encoding;
unsigned char cfa_exp;
+ unsigned char ptr_size;
+ unsigned char segment_size;
}
Frame_Chunk;
+static const char *const *dwarf_regnames;
+static unsigned int dwarf_regnames_count;
+
/* A marker for a col_type that means this column was never referenced
in the frame info. */
#define DW_CFA_unreferenced (-1)
-static void
-frame_need_space (Frame_Chunk *fc, int reg)
+/* Return 0 if not more space is needed, 1 if more space is needed,
+ -1 for invalid reg. */
+
+static int
+frame_need_space (Frame_Chunk *fc, unsigned int reg)
{
int prev = fc->ncols;
- if (reg < fc->ncols)
- return;
+ if (reg < (unsigned int) fc->ncols)
+ return 0;
+
+ if (dwarf_regnames_count
+ && reg > dwarf_regnames_count)
+ return -1;
fc->ncols = reg + 1;
- fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
- fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
+ fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols,
+ sizeof (short int));
+ fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
while (prev < fc->ncols)
{
fc->col_offset[prev] = 0;
prev++;
}
+ return 1;
+}
+
+static const char *const dwarf_regnames_i386[] =
+{
+ "eax", "ecx", "edx", "ebx",
+ "esp", "ebp", "esi", "edi",
+ "eip", "eflags", NULL,
+ "st0", "st1", "st2", "st3",
+ "st4", "st5", "st6", "st7",
+ NULL, NULL,
+ "xmm0", "xmm1", "xmm2", "xmm3",
+ "xmm4", "xmm5", "xmm6", "xmm7",
+ "mm0", "mm1", "mm2", "mm3",
+ "mm4", "mm5", "mm6", "mm7",
+ "fcw", "fsw", "mxcsr",
+ "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+ "tr", "ldtr"
+};
+
+void
+init_dwarf_regnames_i386 (void)
+{
+ dwarf_regnames = dwarf_regnames_i386;
+ dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
+}
+
+static const char *const dwarf_regnames_x86_64[] =
+{
+ "rax", "rdx", "rcx", "rbx",
+ "rsi", "rdi", "rbp", "rsp",
+ "r8", "r9", "r10", "r11",
+ "r12", "r13", "r14", "r15",
+ "rip",
+ "xmm0", "xmm1", "xmm2", "xmm3",
+ "xmm4", "xmm5", "xmm6", "xmm7",
+ "xmm8", "xmm9", "xmm10", "xmm11",
+ "xmm12", "xmm13", "xmm14", "xmm15",
+ "st0", "st1", "st2", "st3",
+ "st4", "st5", "st6", "st7",
+ "mm0", "mm1", "mm2", "mm3",
+ "mm4", "mm5", "mm6", "mm7",
+ "rflags",
+ "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
+ "fs.base", "gs.base", NULL, NULL,
+ "tr", "ldtr",
+ "mxcsr", "fcw", "fsw"
+};
+
+void
+init_dwarf_regnames_x86_64 (void)
+{
+ dwarf_regnames = dwarf_regnames_x86_64;
+ dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
+}
+
+void
+init_dwarf_regnames (unsigned int e_machine)
+{
+ switch (e_machine)
+ {
+ case EM_386:
+ case EM_486:
+ init_dwarf_regnames_i386 ();
+ break;
+
+ case EM_X86_64:
+ case EM_L1OM:
+ init_dwarf_regnames_x86_64 ();
+ break;
+
+ default:
+ break;
+ }
+}
+
+static const char *
+regname (unsigned int regno, int row)
+{
+ static char reg[64];
+ if (dwarf_regnames
+ && regno < dwarf_regnames_count
+ && dwarf_regnames [regno] != NULL)
+ {
+ if (row)
+ return dwarf_regnames [regno];
+ snprintf (reg, sizeof (reg), "r%d (%s)", regno,
+ dwarf_regnames [regno]);
+ }
+ else
+ snprintf (reg, sizeof (reg), "r%d", regno);
+ return reg;
}
static void
if (*need_col_headers)
{
+ static const char *sloc = " LOC";
+
*need_col_headers = 0;
- printf (" LOC CFA ");
+ printf ("%-*s CFA ", eh_addr_size * 2, sloc);
for (r = 0; r < *max_regs; r++)
if (fc->col_type[r] != DW_CFA_unreferenced)
{
if (r == fc->ra)
- printf ("ra ");
+ printf ("ra ");
else
- printf ("r%-4d", r);
+ printf ("%-5s ", regname (r, 1));
}
printf ("\n");
}
- printf ("%08lx ", fc->pc_begin);
+ printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin);
if (fc->cfa_exp)
strcpy (tmp, "exp");
else
- sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset);
+ sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset);
printf ("%-8s ", tmp);
for (r = 0; r < fc->ncols; r++)
sprintf (tmp, "v%+d", fc->col_offset[r]);
break;
case DW_CFA_register:
- sprintf (tmp, "r%d", fc->col_offset[r]);
+ sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
break;
case DW_CFA_expression:
strcpy (tmp, "exp");
strcpy (tmp, "n/a");
break;
}
- printf ("%-5s", tmp);
+ printf ("%-5s ", tmp);
}
}
printf ("\n");
}
-static int
-size_of_encoded_value (int encoding)
-{
- switch (encoding & 0x7)
- {
- default: /* ??? */
- case 0: return eh_addr_size;
- case 2: return 2;
- case 3: return 4;
- case 4: return 8;
- }
-}
-
-static dwarf_vma
-get_encoded_value (unsigned char *data, int encoding)
-{
- int size = size_of_encoded_value (encoding);
-
- if (encoding & DW_EH_PE_signed)
- return byte_get_signed (data, size);
- else
- return byte_get (data, size);
-}
-
#define GET(N) byte_get (start, N); start += N
#define LEB() read_leb128 (start, & length_return, 0); start += length_return
#define SLEB() read_leb128 (start, & length_return, 1); start += length_return
int is_eh = strcmp (section->name, ".eh_frame") == 0;
unsigned int length_return;
int max_regs = 0;
+ const char *bad_reg = _("bad register: ");
+ int saved_eh_addr_size = eh_addr_size;
- printf (_("The section %s contains:\n"), section->name);
+ printf (_("Contents of the %s section:\n"), section->name);
while (start < end)
{
int need_col_headers = 1;
unsigned char *augmentation_data = NULL;
unsigned long augmentation_data_len = 0;
- int encoded_ptr_size = eh_addr_size;
+ int encoded_ptr_size = saved_eh_addr_size;
int offset_size;
int initial_length_size;
{
int version;
- fc = xmalloc (sizeof (Frame_Chunk));
+ fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
memset (fc, 0, sizeof (Frame_Chunk));
fc->next = chunks;
chunks = fc;
fc->chunk_start = saved_start;
fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
- frame_need_space (fc, max_regs-1);
+ fc->col_type = (short int *) xmalloc (sizeof (short int));
+ fc->col_offset = (int *) xmalloc (sizeof (int));
+ frame_need_space (fc, max_regs - 1);
version = *start++;
fc->augmentation = (char *) start;
start = (unsigned char *) strchr ((char *) start, '\0') + 1;
- if (fc->augmentation[0] == 'z')
+ if (strcmp (fc->augmentation, "eh") == 0)
+ start += eh_addr_size;
+
+ if (version >= 4)
{
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- augmentation_data_len = LEB ();
- augmentation_data = start;
- start += augmentation_data_len;
+ fc->ptr_size = GET (1);
+ fc->segment_size = GET (1);
+ eh_addr_size = fc->ptr_size;
}
- else if (strcmp (fc->augmentation, "eh") == 0)
+ else
{
- start += eh_addr_size;
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
+ fc->ptr_size = eh_addr_size;
+ fc->segment_size = 0;
+ }
+ fc->code_factor = LEB ();
+ fc->data_factor = SLEB ();
+ if (version == 1)
+ {
+ fc->ra = GET (1);
}
else
{
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
+ fc->ra = LEB ();
+ }
+
+ if (fc->augmentation[0] == 'z')
+ {
+ augmentation_data_len = LEB ();
+ augmentation_data = start;
+ start += augmentation_data_len;
}
cie = fc;
(unsigned long)(saved_start - section_start), length, cie_id);
printf (" Version: %d\n", version);
printf (" Augmentation: \"%s\"\n", fc->augmentation);
+ if (version >= 4)
+ {
+ printf (" Pointer Size: %u\n", fc->ptr_size);
+ printf (" Segment Size: %u\n", fc->segment_size);
+ }
printf (" Code alignment factor: %u\n", fc->code_factor);
printf (" Data alignment factor: %d\n", fc->data_factor);
printf (" Return address column: %d\n", fc->ra);
q += 1 + size_of_encoded_value (*q);
else if (*p == 'R')
fc->fde_encoding = *q++;
+ else if (*p == 'S')
+ ;
else
break;
p++;
{
unsigned char *look_for;
static Frame_Chunk fde_fc;
+ unsigned long segment_selector;
fc = & fde_fc;
memset (fc, 0, sizeof (Frame_Chunk));
warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
cie_id, (unsigned long)(saved_start - section_start));
fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
+ fc->col_type = (short int *) xmalloc (sizeof (short int));
+ fc->col_offset = (int *) xmalloc (sizeof (int));
frame_need_space (fc, max_regs - 1);
cie = fc;
fc->augmentation = "";
fc->fde_encoding = 0;
+ fc->ptr_size = eh_addr_size;
+ fc->segment_size = 0;
}
else
{
fc->ncols = cie->ncols;
- fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
- fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
+ fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int));
+ fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int));
memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
fc->augmentation = cie->augmentation;
+ fc->ptr_size = cie->ptr_size;
+ eh_addr_size = cie->ptr_size;
+ fc->segment_size = cie->segment_size;
fc->code_factor = cie->code_factor;
fc->data_factor = cie->data_factor;
fc->cfa_reg = cie->cfa_reg;
fc->cfa_offset = cie->cfa_offset;
fc->ra = cie->ra;
- frame_need_space (fc, max_regs-1);
+ frame_need_space (fc, max_regs - 1);
fc->fde_encoding = cie->fde_encoding;
}
if (fc->fde_encoding)
encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
- fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- /* Don't adjust for relocatable file since there's
- invariably a pcrel reloc here, which we haven't
- applied. */
- && !is_relocatable)
- fc->pc_begin += section->address + (start - section_start);
+ segment_selector = 0;
+ if (fc->segment_size)
+ {
+ segment_selector = byte_get (start, fc->segment_size);
+ start += fc->segment_size;
+ }
+ fc->pc_begin = get_encoded_value (start, fc->fde_encoding, section);
start += encoded_ptr_size;
fc->pc_range = byte_get (start, encoded_ptr_size);
start += encoded_ptr_size;
start += augmentation_data_len;
}
- printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n",
+ printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=",
(unsigned long)(saved_start - section_start), length, cie_id,
- (unsigned long)(cie->chunk_start - section_start),
- fc->pc_begin, fc->pc_begin + fc->pc_range);
+ (unsigned long)(cie->chunk_start - section_start));
+ if (fc->segment_size)
+ printf ("%04lx:", segment_selector);
+ printf ("%08lx..%08lx\n", fc->pc_begin, fc->pc_begin + fc->pc_range);
if (! do_debug_frames_interp && augmentation_data_len)
{
unsigned long i;
while (start < block_end)
{
unsigned op, opa;
- unsigned long reg, tmp;
+ unsigned long reg, temp;
op = *start++;
opa = op & 0x3f;
break;
case DW_CFA_offset:
LEB ();
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
+ if (frame_need_space (fc, opa) >= 0)
+ fc->col_type[opa] = DW_CFA_undefined;
break;
case DW_CFA_restore:
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
+ if (frame_need_space (fc, opa) >= 0)
+ fc->col_type[opa] = DW_CFA_undefined;
break;
case DW_CFA_set_loc:
start += encoded_ptr_size;
case DW_CFA_offset_extended:
case DW_CFA_val_offset:
reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_restore_extended:
reg = LEB ();
frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_undefined:
reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_same_value:
reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_register:
reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_def_cfa:
LEB (); LEB ();
LEB ();
break;
case DW_CFA_def_cfa_expression:
- tmp = LEB ();
- start += tmp;
+ temp = LEB ();
+ start += temp;
break;
case DW_CFA_expression:
case DW_CFA_val_expression:
reg = LEB ();
- tmp = LEB ();
- start += tmp;
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ temp = LEB ();
+ start += temp;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_offset_extended_sf:
case DW_CFA_val_offset_sf:
reg = LEB (); SLEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
break;
case DW_CFA_def_cfa_sf:
LEB (); SLEB ();
break;
case DW_CFA_GNU_negative_offset_extended:
reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
-
+ if (frame_need_space (fc, reg) >= 0)
+ fc->col_type[reg] = DW_CFA_undefined;
+ break;
default:
break;
}
unsigned long ul, reg, roffs;
long l, ofs;
dwarf_vma vma;
+ const char *reg_prefix = "";
op = *start++;
opa = op & 0x3f;
case DW_CFA_offset:
roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset: r%d at cfa%+ld\n",
- opa, roffs * fc->data_factor);
- fc->col_type[opa] = DW_CFA_offset;
- fc->col_offset[opa] = roffs * fc->data_factor;
+ if (opa >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
+ reg_prefix, regname (opa, 0),
+ roffs * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[opa] = DW_CFA_offset;
+ fc->col_offset[opa] = roffs * fc->data_factor;
+ }
break;
case DW_CFA_restore:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore: r%d\n", opa);
- fc->col_type[opa] = cie->col_type[opa];
- fc->col_offset[opa] = cie->col_offset[opa];
+ if (opa >= (unsigned int) cie->ncols
+ || opa >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_restore: %s%s\n",
+ reg_prefix, regname (opa, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[opa] = cie->col_type[opa];
+ fc->col_offset[opa] = cie->col_offset[opa];
+ }
break;
case DW_CFA_set_loc:
- vma = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- && !is_relocatable)
- vma += section->address + (start - section_start);
+ vma = get_encoded_value (start, fc->fde_encoding, section);
start += encoded_ptr_size;
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
case DW_CFA_offset_extended:
reg = LEB ();
roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended: r%ld at cfa%+ld\n",
- reg, roffs * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ roffs * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_offset;
+ fc->col_offset[reg] = roffs * fc->data_factor;
+ }
break;
case DW_CFA_val_offset:
reg = LEB ();
roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_val_offset: r%ld at cfa%+ld\n",
- reg, roffs * fc->data_factor);
- fc->col_type[reg] = DW_CFA_val_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ roffs * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_val_offset;
+ fc->col_offset[reg] = roffs * fc->data_factor;
+ }
break;
case DW_CFA_restore_extended:
reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_extended: r%ld\n", reg);
- fc->col_type[reg] = cie->col_type[reg];
- fc->col_offset[reg] = cie->col_offset[reg];
+ if (reg >= (unsigned int) cie->ncols
+ || reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_restore_extended: %s%s\n",
+ reg_prefix, regname (reg, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = cie->col_type[reg];
+ fc->col_offset[reg] = cie->col_offset[reg];
+ }
break;
case DW_CFA_undefined:
reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_undefined: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_undefined;
- fc->col_offset[reg] = 0;
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_undefined: %s%s\n",
+ reg_prefix, regname (reg, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_undefined;
+ fc->col_offset[reg] = 0;
+ }
break;
case DW_CFA_same_value:
reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_same_value: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_same_value;
- fc->col_offset[reg] = 0;
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_same_value: %s%s\n",
+ reg_prefix, regname (reg, 0));
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_same_value;
+ fc->col_offset[reg] = 0;
+ }
break;
case DW_CFA_register:
reg = LEB ();
roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_register: r%ld in r%ld\n", reg, roffs);
- fc->col_type[reg] = DW_CFA_register;
- fc->col_offset[reg] = roffs;
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ {
+ printf (" DW_CFA_register: %s%s in ",
+ reg_prefix, regname (reg, 0));
+ puts (regname (roffs, 0));
+ }
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_register;
+ fc->col_offset[reg] = roffs;
+ }
break;
case DW_CFA_remember_state:
if (! do_debug_frames_interp)
printf (" DW_CFA_remember_state\n");
- rs = xmalloc (sizeof (Frame_Chunk));
+ rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
rs->ncols = fc->ncols;
- rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
- rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
+ rs->col_type = (short int *) xcmalloc (rs->ncols,
+ sizeof (short int));
+ rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int));
memcpy (rs->col_type, fc->col_type, rs->ncols);
memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
rs->next = remembered_state;
if (rs)
{
remembered_state = rs->next;
- frame_need_space (fc, rs->ncols-1);
+ frame_need_space (fc, rs->ncols - 1);
memcpy (fc->col_type, rs->col_type, rs->ncols);
memcpy (fc->col_offset, rs->col_offset,
rs->ncols * sizeof (int));
fc->cfa_offset = LEB ();
fc->cfa_exp = 0;
if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
+ printf (" DW_CFA_def_cfa: %s ofs %d\n",
+ regname (fc->cfa_reg, 0), fc->cfa_offset);
break;
case DW_CFA_def_cfa_register:
fc->cfa_reg = LEB ();
fc->cfa_exp = 0;
if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg);
+ printf (" DW_CFA_def_cfa_register: %s\n",
+ regname (fc->cfa_reg, 0));
break;
case DW_CFA_def_cfa_offset:
if (! do_debug_frames_interp)
{
printf (" DW_CFA_def_cfa_expression (");
- decode_location_expression (start, eh_addr_size, ul, 0);
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
printf (")\n");
}
fc->cfa_exp = 1;
case DW_CFA_expression:
reg = LEB ();
ul = LEB ();
- if (! do_debug_frames_interp)
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
{
- printf (" DW_CFA_expression: r%ld (", reg);
- decode_location_expression (start, eh_addr_size, ul, 0);
+ printf (" DW_CFA_expression: %s%s (",
+ reg_prefix, regname (reg, 0));
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
printf (")\n");
}
- fc->col_type[reg] = DW_CFA_expression;
+ if (*reg_prefix == '\0')
+ fc->col_type[reg] = DW_CFA_expression;
start += ul;
break;
case DW_CFA_val_expression:
reg = LEB ();
ul = LEB ();
- if (! do_debug_frames_interp)
+ if (reg >= (unsigned int) fc->ncols)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
{
- printf (" DW_CFA_val_expression: r%ld (", reg);
- decode_location_expression (start, eh_addr_size, ul, 0);
+ printf (" DW_CFA_val_expression: %s%s (",
+ reg_prefix, regname (reg, 0));
+ decode_location_expression (start, eh_addr_size, 0, -1,
+ ul, 0, section);
printf (")\n");
}
- fc->col_type[reg] = DW_CFA_val_expression;
+ if (*reg_prefix == '\0')
+ fc->col_type[reg] = DW_CFA_val_expression;
start += ul;
break;
case DW_CFA_offset_extended_sf:
reg = LEB ();
l = SLEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
+ if (frame_need_space (fc, reg) < 0)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ l * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_offset;
+ fc->col_offset[reg] = l * fc->data_factor;
+ }
break;
case DW_CFA_val_offset_sf:
reg = LEB ();
l = SLEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_val_offset_sf: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_val_offset;
- fc->col_offset[reg] = l * fc->data_factor;
+ if (frame_need_space (fc, reg) < 0)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ l * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_val_offset;
+ fc->col_offset[reg] = l * fc->data_factor;
+ }
break;
case DW_CFA_def_cfa_sf:
fc->cfa_offset = fc->cfa_offset * fc->data_factor;
fc->cfa_exp = 0;
if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_sf: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
+ printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
+ regname (fc->cfa_reg, 0), fc->cfa_offset);
break;
case DW_CFA_def_cfa_offset_sf:
case DW_CFA_GNU_negative_offset_extended:
reg = LEB ();
l = - LEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_negative_offset_extended: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
+ if (frame_need_space (fc, reg) < 0)
+ reg_prefix = bad_reg;
+ if (! do_debug_frames_interp || *reg_prefix != '\0')
+ printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
+ reg_prefix, regname (reg, 0),
+ l * fc->data_factor);
+ if (*reg_prefix == '\0')
+ {
+ fc->col_type[reg] = DW_CFA_offset;
+ fc->col_offset[reg] = l * fc->data_factor;
+ }
break;
default:
if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
else
- warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
+ warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
start = block_end;
}
}
frame_display_row (fc, &need_col_headers, &max_regs);
start = block_end;
+ eh_addr_size = saved_eh_addr_size;
}
printf ("\n");
#undef LEB
#undef SLEB
+static int
+display_gdb_index (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
+{
+ unsigned char *start = section->start;
+ uint32_t version;
+ uint32_t cu_list_offset, tu_list_offset;
+ uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
+ unsigned int cu_list_elements, tu_list_elements;
+ unsigned int address_table_size, symbol_table_slots;
+ unsigned char *cu_list, *tu_list;
+ unsigned char *address_table, *symbol_table, *constant_pool;
+ unsigned int i;
+
+ /* The documentation for the format of this file is in gdb/dwarf2read.c. */
+
+ printf (_("Contents of the %s section:\n"), section->name);
+
+ if (section->size < 6 * sizeof (uint32_t))
+ {
+ warn (_("Truncated header in the %s section.\n"), section->name);
+ return 0;
+ }
+
+ version = byte_get_little_endian (start, 4);
+ printf (_("Version %d\n"), version);
+
+ /* Prior versions are obsolete, and future versions may not be
+ backwards compatible. */
+ if (version != 3)
+ {
+ warn (_("Unsupported version %u.\n"), version);
+ return 0;
+ }
+
+ cu_list_offset = byte_get_little_endian (start + 4, 4);
+ tu_list_offset = byte_get_little_endian (start + 8, 4);
+ address_table_offset = byte_get_little_endian (start + 12, 4);
+ symbol_table_offset = byte_get_little_endian (start + 16, 4);
+ constant_pool_offset = byte_get_little_endian (start + 20, 4);
+
+ if (cu_list_offset > section->size
+ || tu_list_offset > section->size
+ || address_table_offset > section->size
+ || symbol_table_offset > section->size
+ || constant_pool_offset > section->size)
+ {
+ warn (_("Corrupt header in the %s section.\n"), section->name);
+ return 0;
+ }
+
+ cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
+ tu_list_elements = (address_table_offset - tu_list_offset) / 8;
+ address_table_size = symbol_table_offset - address_table_offset;
+ symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
+
+ cu_list = start + cu_list_offset;
+ tu_list = start + tu_list_offset;
+ address_table = start + address_table_offset;
+ symbol_table = start + symbol_table_offset;
+ constant_pool = start + constant_pool_offset;
+
+ printf (_("\nCU table:\n"));
+ for (i = 0; i < cu_list_elements; i += 2)
+ {
+ uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
+ uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
+
+ printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
+ (unsigned long) cu_offset,
+ (unsigned long) (cu_offset + cu_length - 1));
+ }
+
+ printf (_("\nTU table:\n"));
+ for (i = 0; i < tu_list_elements; i += 3)
+ {
+ uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
+ uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
+ uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
+
+ printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
+ (unsigned long) tu_offset,
+ (unsigned long) type_offset);
+ print_dwarf_vma (signature, 8);
+ printf ("\n");
+ }
+
+ printf (_("\nAddress table:\n"));
+ for (i = 0; i < address_table_size; i += 2 * 8 + 4)
+ {
+ uint64_t low = byte_get_little_endian (address_table + i, 8);
+ uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
+ uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
+
+ print_dwarf_vma (low, 8);
+ print_dwarf_vma (high, 8);
+ printf (_("%u\n"), cu_index);
+ }
+
+ printf (_("\nSymbol table:\n"));
+ for (i = 0; i < symbol_table_slots; ++i)
+ {
+ uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
+ uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
+ uint32_t num_cus, cu;
+
+ if (name_offset != 0
+ || cu_vector_offset != 0)
+ {
+ unsigned int j;
+
+ printf ("[%3u] %s:", i, constant_pool + name_offset);
+ num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4);
+ for (j = 0; j < num_cus; ++j)
+ {
+ cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
+ /* Convert to TU number if it's for a type unit. */
+ if (cu >= cu_list_elements)
+ printf (" T%u", cu - cu_list_elements);
+ else
+ printf (" %u", cu);
+ }
+ printf ("\n");
+ }
+ }
+
+ return 1;
+}
+
static int
display_debug_not_supported (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
return xrealloc (ptr, nmemb * size);
}
-void
-error (const char *message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf (stderr, _("%s: Error: "), program_name);
- vfprintf (stderr, message, args);
- va_end (args);
-}
-
-void
-warn (const char *message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf (stderr, _("%s: Warning: "), program_name);
- vfprintf (stderr, message, args);
- va_end (args);
-}
-
void
free_debug_memory (void)
{
- enum dwarf_section_display_enum i;
+ unsigned int i;
free_abbrevs ();
for (i = 0; i < max; i++)
- free_debug_section (i);
+ free_debug_section ((enum dwarf_section_display_enum) i);
- if (debug_information)
+ if (debug_information != NULL)
{
- for (i = 0; i < num_debug_info_entries; i++)
+ if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
{
- if (!debug_information [i].max_loc_offsets)
+ for (i = 0; i < num_debug_info_entries; i++)
{
- free (debug_information [i].loc_offsets);
- free (debug_information [i].have_frame_base);
+ if (!debug_information [i].max_loc_offsets)
+ {
+ free (debug_information [i].loc_offsets);
+ free (debug_information [i].have_frame_base);
+ }
+ if (!debug_information [i].max_range_lists)
+ free (debug_information [i].range_lists);
}
- if (!debug_information [i].max_range_lists)
- free (debug_information [i].range_lists);
}
+
free (debug_information);
debug_information = NULL;
num_debug_info_entries = 0;
}
+}
+
+void
+dwarf_select_sections_by_names (const char *names)
+{
+ typedef struct
+ {
+ const char * option;
+ int * variable;
+ int val;
+ }
+ debug_dump_long_opts;
+
+ static const debug_dump_long_opts opts_table [] =
+ {
+ /* Please keep this table alpha- sorted. */
+ { "Ranges", & do_debug_ranges, 1 },
+ { "abbrev", & do_debug_abbrevs, 1 },
+ { "aranges", & do_debug_aranges, 1 },
+ { "frames", & do_debug_frames, 1 },
+ { "frames-interp", & do_debug_frames_interp, 1 },
+ { "info", & do_debug_info, 1 },
+ { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
+ { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
+ { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
+ { "loc", & do_debug_loc, 1 },
+ { "macro", & do_debug_macinfo, 1 },
+ { "pubnames", & do_debug_pubnames, 1 },
+ { "pubtypes", & do_debug_pubtypes, 1 },
+ /* This entry is for compatability
+ with earlier versions of readelf. */
+ { "ranges", & do_debug_aranges, 1 },
+ { "str", & do_debug_str, 1 },
+ /* The special .gdb_index section. */
+ { "gdb_index", & do_gdb_index, 1 },
+ /* These trace_* sections are used by Itanium VMS. */
+ { "trace_abbrev", & do_trace_abbrevs, 1 },
+ { "trace_aranges", & do_trace_aranges, 1 },
+ { "trace_info", & do_trace_info, 1 },
+ { NULL, NULL, 0 }
+ };
+
+ const char *p;
+
+ p = names;
+ while (*p)
+ {
+ const debug_dump_long_opts * entry;
+
+ for (entry = opts_table; entry->option; entry++)
+ {
+ size_t len = strlen (entry->option);
+
+ if (strncmp (p, entry->option, len) == 0
+ && (p[len] == ',' || p[len] == '\0'))
+ {
+ * entry->variable |= entry->val;
+
+ /* The --debug-dump=frames-interp option also
+ enables the --debug-dump=frames option. */
+ if (do_debug_frames_interp)
+ do_debug_frames = 1;
+ p += len;
+ break;
+ }
+ }
+
+ if (entry->option == NULL)
+ {
+ warn (_("Unrecognized debug option '%s'\n"), p);
+ p = strchr (p, ',');
+ if (p == NULL)
+ break;
+ }
+
+ if (*p == ',')
+ p++;
+ }
+}
+
+void
+dwarf_select_sections_by_letters (const char *letters)
+{
+ unsigned int lindex = 0;
+
+ while (letters[lindex])
+ switch (letters[lindex++])
+ {
+ case 'i':
+ do_debug_info = 1;
+ break;
+
+ case 'a':
+ do_debug_abbrevs = 1;
+ break;
+
+ case 'l':
+ do_debug_lines |= FLAG_DEBUG_LINES_RAW;
+ break;
+
+ case 'L':
+ do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
+ break;
+
+ case 'p':
+ do_debug_pubnames = 1;
+ break;
+
+ case 't':
+ do_debug_pubtypes = 1;
+ break;
+
+ case 'r':
+ do_debug_aranges = 1;
+ break;
+
+ case 'R':
+ do_debug_ranges = 1;
+ break;
+
+ case 'F':
+ do_debug_frames_interp = 1;
+ case 'f':
+ do_debug_frames = 1;
+ break;
+
+ case 'm':
+ do_debug_macinfo = 1;
+ break;
+
+ case 's':
+ do_debug_str = 1;
+ break;
+
+ case 'o':
+ do_debug_loc = 1;
+ break;
+
+ default:
+ warn (_("Unrecognized debug option '%s'\n"), optarg);
+ break;
+ }
+}
+
+void
+dwarf_select_sections_all (void)
+{
+ do_debug_info = 1;
+ do_debug_abbrevs = 1;
+ do_debug_lines = FLAG_DEBUG_LINES_RAW;
+ do_debug_pubnames = 1;
+ do_debug_pubtypes = 1;
+ do_debug_aranges = 1;
+ do_debug_ranges = 1;
+ do_debug_frames = 1;
+ do_debug_macinfo = 1;
+ do_debug_str = 1;
+ do_debug_loc = 1;
+ do_gdb_index = 1;
+ do_trace_info = 1;
+ do_trace_abbrevs = 1;
+ do_trace_aranges = 1;
}
struct dwarf_section_display debug_displays[] =
{
- { { ".debug_abbrev", NULL, 0, 0 },
- display_debug_abbrev, 0, 0 },
- { { ".debug_aranges", NULL, 0, 0 },
- display_debug_aranges, 0, 0 },
- { { ".debug_frame", NULL, 0, 0 },
- display_debug_frames, 1, 0 },
- { { ".debug_info", NULL, 0, 0 },
- display_debug_info, 1, 0 },
- { { ".debug_line", NULL, 0, 0 },
- display_debug_lines, 0, 0 },
- { { ".debug_pubnames", NULL, 0, 0 },
- display_debug_pubnames, 0, 0 },
- { { ".eh_frame", NULL, 0, 0 },
- display_debug_frames, 1, 1 },
- { { ".debug_macinfo", NULL, 0, 0 },
- display_debug_macinfo, 0, 0 },
- { { ".debug_str", NULL, 0, 0 },
- display_debug_str, 0, 0 },
- { { ".debug_loc", NULL, 0, 0 },
- display_debug_loc, 0, 0 },
- { { ".debug_pubtypes", NULL, 0, 0 },
- display_debug_pubnames, 0, 0 },
- { { ".debug_ranges", NULL, 0, 0 },
- display_debug_ranges, 0, 0 },
- { { ".debug_static_func", NULL, 0, 0 },
- display_debug_not_supported, 0, 0 },
- { { ".debug_static_vars", NULL, 0, 0 },
- display_debug_not_supported, 0, 0 },
- { { ".debug_types", NULL, 0, 0 },
- display_debug_not_supported, 0, 0 },
- { { ".debug_weaknames", NULL, 0, 0 },
- display_debug_not_supported, 0, 0 }
+ { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 },
+ display_debug_abbrev, &do_debug_abbrevs, 0 },
+ { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 },
+ display_debug_aranges, &do_debug_aranges, 1 },
+ { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 },
+ display_debug_frames, &do_debug_frames, 1 },
+ { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 },
+ display_debug_info, &do_debug_info, 1 },
+ { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 },
+ display_debug_lines, &do_debug_lines, 1 },
+ { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 },
+ display_debug_pubnames, &do_debug_pubnames, 0 },
+ { { ".eh_frame", "", NULL, NULL, 0, 0 },
+ display_debug_frames, &do_debug_frames, 1 },
+ { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 },
+ display_debug_macinfo, &do_debug_macinfo, 0 },
+ { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 },
+ display_debug_str, &do_debug_str, 0 },
+ { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 },
+ display_debug_loc, &do_debug_loc, 1 },
+ { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 },
+ display_debug_pubnames, &do_debug_pubtypes, 0 },
+ { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 },
+ display_debug_ranges, &do_debug_ranges, 1 },
+ { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 },
+ display_debug_types, &do_debug_info, 1 },
+ { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".gdb_index", "", NULL, NULL, 0, 0 },
+ display_gdb_index, &do_gdb_index, 0 },
+ { { ".trace_info", "", NULL, NULL, 0, 0 },
+ display_trace_info, &do_trace_info, 1 },
+ { { ".trace_abbrev", "", NULL, NULL, 0, 0 },
+ display_debug_abbrev, &do_trace_abbrevs, 0 },
+ { { ".trace_aranges", "", NULL, NULL, 0, 0 },
+ display_debug_aranges, &do_trace_aranges, 0 }
};
projects / deliverable / binutils-gdb.git / blobdiff