/* dwarf.c -- display DWARF contents of a BFD binary file
- Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright 2005-2013 Free Software Foundation, Inc.
This file is part of GNU Binutils.
#include "elf/common.h"
#include "dwarf2.h"
#include "dwarf.h"
+#include "gdb/gdb-index.h"
+
+#if !HAVE_DECL_STRNLEN
+size_t strnlen (const char *, size_t);
+#endif
static const char *regname (unsigned int regno, int row);
int do_trace_info;
int do_trace_abbrevs;
int do_trace_aranges;
+int do_debug_addr;
+int do_debug_cu_index;
int do_wide;
+int dwarf_cutoff_level = -1;
+unsigned long dwarf_start_die;
+
+int dwarf_check = 0;
+
+/* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index
+ sections. For version 1 package files, each set is stored in SHNDX_POOL
+ as a zero-terminated list of section indexes comprising one set of debug
+ sections from a .dwo file. */
+
+static int cu_tu_indexes_read = 0;
+static unsigned int *shndx_pool = NULL;
+static unsigned int shndx_pool_size = 0;
+static unsigned int shndx_pool_used = 0;
+
+/* For version 2 package files, each set contains an array of section offsets
+ and an array of section sizes, giving the offset and size of the
+ contribution from a CU or TU within one of the debug sections.
+ When displaying debug info from a package file, we need to use these
+ tables to locate the corresponding contributions to each section. */
+
+struct cu_tu_set
+{
+ uint64_t signature;
+ dwarf_vma section_offsets[DW_SECT_MAX];
+ size_t section_sizes[DW_SECT_MAX];
+};
+
+static int cu_count = 0;
+static int tu_count = 0;
+static struct cu_tu_set *cu_sets = NULL;
+static struct cu_tu_set *tu_sets = NULL;
+
+static void load_cu_tu_indexes (void *file);
+
/* Values for do_debug_lines. */
#define FLAG_DEBUG_LINES_RAW 1
#define FLAG_DEBUG_LINES_DECODED 2
if (byte_size > 0 && byte_size <= 8)
offset = 16 - 2 * byte_size;
else
- error ("Wrong size in print_dwarf_vma");
+ error (_("Wrong size in print_dwarf_vma"));
}
fputs (buff + offset, stdout);
return ret;
}
+/* Format a 64-bit value, given as two 32-bit values, in hex.
+ For reentrancy, this uses a buffer provided by the caller. */
+
+static const char *
+dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf,
+ unsigned int buf_len)
+{
+ int len = 0;
+
+ if (hvalue == 0)
+ snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue);
+ else
+ {
+ len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue);
+ snprintf (buf + len, buf_len - len,
+ "%08" DWARF_VMA_FMT "x", lvalue);
+ }
+
+ return buf;
+}
+
+/* Read in a LEB128 encoded value starting at address DATA.
+ If SIGN is true, return a signed LEB128 value.
+ If LENGTH_RETURN is not NULL, return in it the number of bytes read.
+ No bytes will be read at address END or beyond. */
+
dwarf_vma
-read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
+read_leb128 (unsigned char *data,
+ unsigned int *length_return,
+ bfd_boolean sign,
+ const unsigned char * const end)
{
dwarf_vma result = 0;
unsigned int num_read = 0;
unsigned int shift = 0;
- unsigned char byte;
+ unsigned char byte = 0;
- do
+ while (data < end)
{
byte = *data++;
num_read++;
result |= ((dwarf_vma) (byte & 0x7f)) << shift;
shift += 7;
-
+ if ((byte & 0x80) == 0)
+ break;
}
- while (byte & 0x80);
if (length_return != NULL)
*length_return = num_read;
}
/* Create a signed version to avoid painful typecasts. */
-static dwarf_signed_vma
-read_sleb128 (unsigned char *data, unsigned int *length_return)
+static inline dwarf_signed_vma
+read_sleb128 (unsigned char * data,
+ unsigned int * length_return,
+ const unsigned char * const end)
+{
+ return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end);
+}
+
+static inline dwarf_vma
+read_uleb128 (unsigned char * data,
+ unsigned int * length_return,
+ const unsigned char * const end)
{
- return (dwarf_signed_vma) read_leb128 (data, length_return, 1);
+ return read_leb128 (data, length_return, FALSE, end);
}
+#define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \
+ do \
+ { \
+ unsigned int amount = (AMOUNT); \
+ if (((PTR) + amount) >= (END)) \
+ { \
+ if ((PTR) < (END)) \
+ amount = (END) - (PTR); \
+ else \
+ amount = 0; \
+ } \
+ if (amount) \
+ VAL = byte_get ((PTR), amount); \
+ else \
+ VAL = 0; \
+ } \
+ while (0)
+
+#define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
+ do \
+ { \
+ SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \
+ PTR += AMOUNT; \
+ } \
+ while (0)
+
+#define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \
+ do \
+ { \
+ unsigned int amount = (AMOUNT); \
+ if (((PTR) + amount) >= (END)) \
+ { \
+ if ((PTR) < (END)) \
+ amount = (END) - (PTR); \
+ else \
+ amount = 0; \
+ } \
+ if (amount) \
+ VAL = byte_get_signed ((PTR), amount); \
+ else \
+ VAL = 0; \
+ } \
+ while (0)
+
+#define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
+ do \
+ { \
+ SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \
+ PTR += AMOUNT; \
+ } \
+ while (0)
+
+#define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \
+ do \
+ { \
+ if (((PTR) + 8) <= (END)) \
+ { \
+ byte_get_64 ((PTR), (HIGH), (LOW)); \
+ } \
+ else \
+ { \
+ * (LOW) = * (HIGH) = 0; \
+ } \
+ } \
+ while (0)
+
typedef struct State_Machine_Registers
{
dwarf_vma address;
Returns the number of bytes read. */
static int
-process_extended_line_op (unsigned char *data, int is_stmt)
+process_extended_line_op (unsigned char * data,
+ int is_stmt,
+ unsigned char * end)
{
unsigned char op_code;
unsigned int bytes_read;
unsigned int len;
unsigned char *name;
+ unsigned char *orig_data = data;
dwarf_vma adr;
- len = read_leb128 (data, & bytes_read, 0);
+ len = read_uleb128 (data, & bytes_read, end);
data += bytes_read;
- if (len == 0)
+ if (len == 0 || data == end)
{
warn (_("badly formed extended line op encountered!\n"));
return bytes_read;
break;
case DW_LNE_set_address:
- adr = byte_get (data, len - bytes_read - 1);
+ SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end);
printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", 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 (_("define new File Table entry\n"));
printf (_(" Entry\tDir\tTime\tSize\tName\n"));
-
printf (" %d\t", ++state_machine_regs.last_file_entry);
+
name = data;
- data += strlen ((char *) data) + 1;
- printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
+ data += strnlen ((char *) data, end - data) + 1;
+ printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
+ data += bytes_read;
+ printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
data += bytes_read;
- printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
+ printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
data += bytes_read;
- printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
printf ("%s\n\n", name);
+
+ if (((unsigned int) (data - orig_data) != len) || data == end)
+ warn (_("DW_LNE_define_file: Bad opcode length\n"));
break;
case DW_LNE_set_discriminator:
printf (_("set Discriminator to %s\n"),
- dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
+ dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
break;
/* HP extensions. */
case DW_LNE_HP_define_proc:
printf ("DW_LNE_HP_define_proc\n");
break;
+ case DW_LNE_HP_source_file_correlation:
+ {
+ unsigned char *edata = data + len - bytes_read - 1;
+
+ printf ("DW_LNE_HP_source_file_correlation\n");
+
+ while (data < edata)
+ {
+ unsigned int opc;
+
+ opc = read_uleb128 (data, & bytes_read, edata);
+ data += bytes_read;
+
+ switch (opc)
+ {
+ case DW_LNE_HP_SFC_formfeed:
+ printf (" DW_LNE_HP_SFC_formfeed\n");
+ break;
+ case DW_LNE_HP_SFC_set_listing_line:
+ printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
+ dwarf_vmatoa ("u",
+ read_uleb128 (data, & bytes_read, edata)));
+ data += bytes_read;
+ break;
+ case DW_LNE_HP_SFC_associate:
+ printf (" DW_LNE_HP_SFC_associate ");
+ printf ("(%s",
+ dwarf_vmatoa ("u",
+ read_uleb128 (data, & bytes_read, edata)));
+ data += bytes_read;
+ printf (",%s",
+ dwarf_vmatoa ("u",
+ read_uleb128 (data, & bytes_read, edata)));
+ data += bytes_read;
+ printf (",%s)\n",
+ dwarf_vmatoa ("u",
+ read_uleb128 (data, & bytes_read, edata)));
+ data += bytes_read;
+ break;
+ default:
+ printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc);
+ data = edata;
+ break;
+ }
+ }
+ }
+ break;
default:
- 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);
+ {
+ unsigned int rlen = len - bytes_read - 1;
+
+ 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: "));
+ else
+ printf (_("UNKNOWN: "));
+ printf (_("length %d ["), rlen);
+ for (; rlen; rlen--)
+ printf (" %02x", *data++);
+ printf ("]\n");
+ }
break;
}
return len;
}
-static const char *
+static const unsigned char *
fetch_indirect_string (dwarf_vma offset)
{
struct dwarf_section *section = &debug_displays [str].section;
if (section->start == NULL)
- return _("<no .debug_str section>");
+ return (const unsigned char *) _("<no .debug_str section>");
/* DWARF sections under Mach-O have non-zero addresses. */
offset -= section->address;
{
warn (_("DW_FORM_strp offset too big: %s\n"),
dwarf_vmatoa ("x", offset));
- return _("<offset is too big>");
+ return (const unsigned char *) _("<offset is too big>");
+ }
+
+ return (const unsigned char *) section->start + offset;
+}
+
+static const char *
+fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set,
+ dwarf_vma offset_size, int dwo)
+{
+ enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str;
+ enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index;
+ struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section;
+ struct dwarf_section *str_section = &debug_displays [str_sec_idx].section;
+ dwarf_vma index_offset = idx * offset_size;
+ dwarf_vma str_offset;
+
+ if (index_section->start == NULL)
+ return (dwo ? _("<no .debug_str_offsets.dwo section>")
+ : _("<no .debug_str_offsets section>"));
+
+ /* DWARF sections under Mach-O have non-zero addresses. */
+ index_offset -= index_section->address;
+ if (this_set != NULL)
+ index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS];
+ if (index_offset > index_section->size)
+ {
+ warn (_("DW_FORM_GNU_str_index offset too big: %s\n"),
+ dwarf_vmatoa ("x", index_offset));
+ return _("<index offset is too big>");
+ }
+
+ if (str_section->start == NULL)
+ return (dwo ? _("<no .debug_str.dwo section>")
+ : _("<no .debug_str section>"));
+
+ str_offset = byte_get (index_section->start + index_offset, offset_size);
+ str_offset -= str_section->address;
+ if (str_offset > str_section->size)
+ {
+ warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"),
+ dwarf_vmatoa ("x", str_offset));
+ return _("<indirect index offset is too big>");
+ }
+
+ return (const char *) str_section->start + str_offset;
+}
+
+static const char *
+fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes)
+{
+ struct dwarf_section *section = &debug_displays [debug_addr].section;
+
+ if (section->start == NULL)
+ return (_("<no .debug_addr section>"));
+
+ if (offset + bytes > section->size)
+ {
+ warn (_("Offset into section %s too big: %s\n"),
+ section->name, dwarf_vmatoa ("x", offset));
+ return "<offset too big>";
}
- return (const char *) section->start + offset;
+ return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes));
}
+
/* FIXME: There are better and more efficient ways to handle
these structures. For now though, I just want something that
is simple to implement. */
unsigned long attribute;
int children;
- entry = read_leb128 (start, & bytes_read, 0);
+ entry = read_uleb128 (start, & bytes_read, end);
start += bytes_read;
/* A single zero is supposed to end the section according
to the standard. If there's more, then signal that to
the caller. */
+ if (start == end)
+ return NULL;
if (entry == 0)
- return start == end ? NULL : start;
+ return start;
- tag = read_leb128 (start, & bytes_read, 0);
+ tag = read_uleb128 (start, & bytes_read, end);
start += bytes_read;
+ if (start == end)
+ return NULL;
children = *start++;
{
unsigned long form;
- attribute = read_leb128 (start, & bytes_read, 0);
+ attribute = read_uleb128 (start, & bytes_read, end);
start += bytes_read;
+ if (start == end)
+ break;
- form = read_leb128 (start, & bytes_read, 0);
+ form = read_uleb128 (start, & bytes_read, end);
start += bytes_read;
+ if (start == end)
+ break;
- if (attribute != 0)
- add_abbrev_attr (attribute, form);
+ add_abbrev_attr (attribute, form);
}
while (attribute != 0);
}
+ /* Report the missing single zero which ends the section. */
+ error (_(".debug_abbrev section not zero terminated\n"));
+
return NULL;
}
-static char *
+static const char *
get_TAG_name (unsigned long tag)
{
- switch (tag)
+ const char *name = get_DW_TAG_name ((unsigned int)tag);
+
+ if (name == NULL)
{
- case DW_TAG_padding: return "DW_TAG_padding";
- case DW_TAG_array_type: return "DW_TAG_array_type";
- case DW_TAG_class_type: return "DW_TAG_class_type";
- case DW_TAG_entry_point: return "DW_TAG_entry_point";
- case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
- case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
- case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
- case DW_TAG_label: return "DW_TAG_label";
- case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
- case DW_TAG_member: return "DW_TAG_member";
- case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
- case DW_TAG_reference_type: return "DW_TAG_reference_type";
- case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
- case DW_TAG_string_type: return "DW_TAG_string_type";
- case DW_TAG_structure_type: return "DW_TAG_structure_type";
- case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
- case DW_TAG_typedef: return "DW_TAG_typedef";
- case DW_TAG_union_type: return "DW_TAG_union_type";
- case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
- case DW_TAG_variant: return "DW_TAG_variant";
- case DW_TAG_common_block: return "DW_TAG_common_block";
- case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
- case DW_TAG_inheritance: return "DW_TAG_inheritance";
- case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
- case DW_TAG_module: return "DW_TAG_module";
- case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
- case DW_TAG_set_type: return "DW_TAG_set_type";
- case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
- case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
- case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
- case DW_TAG_base_type: return "DW_TAG_base_type";
- case DW_TAG_catch_block: return "DW_TAG_catch_block";
- case DW_TAG_const_type: return "DW_TAG_const_type";
- case DW_TAG_constant: return "DW_TAG_constant";
- case DW_TAG_enumerator: return "DW_TAG_enumerator";
- case DW_TAG_file_type: return "DW_TAG_file_type";
- case DW_TAG_friend: return "DW_TAG_friend";
- case DW_TAG_namelist: return "DW_TAG_namelist";
- case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
- case DW_TAG_packed_type: return "DW_TAG_packed_type";
- case DW_TAG_subprogram: return "DW_TAG_subprogram";
- case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
- case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
- case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
- case DW_TAG_try_block: return "DW_TAG_try_block";
- case DW_TAG_variant_part: return "DW_TAG_variant_part";
- case DW_TAG_variable: return "DW_TAG_variable";
- case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
- case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
- case DW_TAG_format_label: return "DW_TAG_format_label";
- case DW_TAG_function_template: return "DW_TAG_function_template";
- case DW_TAG_class_template: return "DW_TAG_class_template";
- /* DWARF 2.1 values. */
- case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
- case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
- case DW_TAG_interface_type: return "DW_TAG_interface_type";
- case DW_TAG_namespace: return "DW_TAG_namespace";
- case DW_TAG_imported_module: return "DW_TAG_imported_module";
- 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_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
- /* GNU values. */
- case DW_TAG_GNU_call_site: return "DW_TAG_GNU_call_site";
- case DW_TAG_GNU_call_site_parameter:return "DW_TAG_GNU_call_site_parameter";
- default:
- {
- static char buffer[100];
+ static char buffer[100];
- snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
- return buffer;
- }
+ snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
+ return buffer;
}
+
+ return name;
}
-static char *
+static const char *
get_FORM_name (unsigned long form)
{
- switch (form)
+ const char *name;
+
+ if (form == 0)
+ return "DW_FORM value: 0";
+
+ name = get_DW_FORM_name (form);
+ if (name == NULL)
{
- case DW_FORM_addr: return "DW_FORM_addr";
- case DW_FORM_block2: return "DW_FORM_block2";
- case DW_FORM_block4: return "DW_FORM_block4";
- case DW_FORM_data2: return "DW_FORM_data2";
- case DW_FORM_data4: return "DW_FORM_data4";
- case DW_FORM_data8: return "DW_FORM_data8";
- case DW_FORM_string: return "DW_FORM_string";
- case DW_FORM_block: return "DW_FORM_block";
- case DW_FORM_block1: return "DW_FORM_block1";
- case DW_FORM_data1: return "DW_FORM_data1";
- case DW_FORM_flag: return "DW_FORM_flag";
- case DW_FORM_sdata: return "DW_FORM_sdata";
- case DW_FORM_strp: return "DW_FORM_strp";
- case DW_FORM_udata: return "DW_FORM_udata";
- case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
- case DW_FORM_ref1: return "DW_FORM_ref1";
- case DW_FORM_ref2: return "DW_FORM_ref2";
- case DW_FORM_ref4: return "DW_FORM_ref4";
- 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 char buffer[100];
- snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
- return buffer;
- }
+ snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
+ return buffer;
}
+
+ return name;
}
static unsigned char *
-display_block (unsigned char *data, dwarf_vma length)
+display_block (unsigned char *data,
+ dwarf_vma length,
+ const unsigned char * const end)
{
+ dwarf_vma maxlen;
+
printf (_(" %s byte block: "), dwarf_vmatoa ("u", length));
+ maxlen = (dwarf_vma) (end - data);
+ length = length > maxlen ? maxlen : length;
+
while (length --)
printf ("%lx ", (unsigned long) byte_get (data++, 1));
unsigned op;
unsigned int bytes_read;
dwarf_vma uvalue;
+ dwarf_signed_vma svalue;
unsigned char *end = data + length;
int need_frame_base = 0;
switch (op)
{
case DW_OP_addr:
- printf ("DW_OP_addr: %lx",
- (unsigned long) byte_get (data, pointer_size));
- data += pointer_size;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
+ printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue));
break;
case DW_OP_deref:
printf ("DW_OP_deref");
break;
case DW_OP_const1u:
- printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ printf ("DW_OP_const1u: %lu", (unsigned long) uvalue);
break;
case DW_OP_const1s:
- printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end);
+ printf ("DW_OP_const1s: %ld", (long) svalue);
break;
case DW_OP_const2u:
- printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
- data += 2;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
+ printf ("DW_OP_const2u: %lu", (unsigned long) uvalue);
break;
case DW_OP_const2s:
- printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
- data += 2;
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
+ printf ("DW_OP_const2s: %ld", (long) svalue);
break;
case DW_OP_const4u:
- printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
- data += 4;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
+ printf ("DW_OP_const4u: %lu", (unsigned long) uvalue);
break;
case DW_OP_const4s:
- printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
- data += 4;
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
+ printf ("DW_OP_const4s: %ld", (long) svalue);
break;
case DW_OP_const8u:
- printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
- (unsigned long) byte_get (data + 4, 4));
- data += 8;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
+ printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue);
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
+ printf ("%lu", (unsigned long) uvalue);
break;
case DW_OP_const8s:
- printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
- (long) byte_get (data + 4, 4));
- data += 8;
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
+ printf ("DW_OP_const8s: %ld ", (long) svalue);
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
+ printf ("%ld", (long) svalue);
break;
case DW_OP_constu:
printf ("DW_OP_constu: %s",
- dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
+ dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_consts:
printf ("DW_OP_consts: %s",
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
+ dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_dup:
printf ("DW_OP_over");
break;
case DW_OP_pick:
- printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ printf ("DW_OP_pick: %ld", (unsigned long) uvalue);
break;
case DW_OP_swap:
printf ("DW_OP_swap");
break;
case DW_OP_plus_uconst:
printf ("DW_OP_plus_uconst: %s",
- dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
+ dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_shl:
printf ("DW_OP_xor");
break;
case DW_OP_bra:
- printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
- data += 2;
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
+ printf ("DW_OP_bra: %ld", (long) svalue);
break;
case DW_OP_eq:
printf ("DW_OP_eq");
printf ("DW_OP_ne");
break;
case DW_OP_skip:
- printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
- data += 2;
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
+ printf ("DW_OP_skip: %ld", (long) svalue);
break;
case DW_OP_lit0:
printf ("DW_OP_breg%d (%s): %s",
op - DW_OP_breg0,
regname (op - DW_OP_breg0, 1),
- dwarf_vmatoa ("d", (dwarf_signed_vma)
- read_leb128 (data, &bytes_read, 1)));
+ dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_regx:
- uvalue = read_leb128 (data, &bytes_read, 0);
+ uvalue = read_uleb128 (data, &bytes_read, end);
data += bytes_read;
printf ("DW_OP_regx: %s (%s)",
dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
case DW_OP_fbreg:
need_frame_base = 1;
printf ("DW_OP_fbreg: %s",
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
+ dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_bregx:
- uvalue = read_leb128 (data, &bytes_read, 0);
+ uvalue = read_uleb128 (data, &bytes_read, end);
data += bytes_read;
printf ("DW_OP_bregx: %s (%s) %s",
dwarf_vmatoa ("u", uvalue), regname (uvalue, 1),
- dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
+ dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_piece:
printf ("DW_OP_piece: %s",
- dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
+ dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_deref_size:
- printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ printf ("DW_OP_deref_size: %ld", (long) uvalue);
break;
case DW_OP_xderef_size:
- printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ printf ("DW_OP_xderef_size: %ld", (long) uvalue);
break;
case DW_OP_nop:
printf ("DW_OP_nop");
case DW_OP_call2:
/* XXX: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
printf ("DW_OP_call2: <0x%s>",
- dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 2)
- + cu_offset));
- data += 2;
+ dwarf_vmatoa ("x", svalue + cu_offset));
break;
case DW_OP_call4:
/* XXX: Strictly speaking for 64-bit DWARF3 files
this ought to be an 8-byte wide computation. */
+ SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
printf ("DW_OP_call4: <0x%s>",
- dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 4)
- + cu_offset));
- data += 4;
+ dwarf_vmatoa ("x", svalue + cu_offset));
break;
case DW_OP_call_ref:
/* XXX: Strictly speaking for 64-bit DWARF3 files
}
if (dwarf_version == 2)
{
- printf ("DW_OP_call_ref: <0x%s>",
- dwarf_vmatoa ("x", byte_get (data, pointer_size)));
- data += pointer_size;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
}
else
{
- printf ("DW_OP_call_ref: <0x%s>",
- dwarf_vmatoa ("x", byte_get (data, offset_size)));
- data += offset_size;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
}
+ printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue));
break;
case DW_OP_form_tls_address:
printf ("DW_OP_form_tls_address");
break;
case DW_OP_bit_piece:
printf ("DW_OP_bit_piece: ");
- printf ("size: %s ",
- dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
+ printf (_("size: %s "),
+ dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
data += bytes_read;
- printf ("offset: %s ",
- dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
+ printf (_("offset: %s "),
+ dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
data += bytes_read;
break;
case DW_OP_implicit_value:
printf ("DW_OP_implicit_value");
- uvalue = read_leb128 (data, &bytes_read, 0);
+ uvalue = read_uleb128 (data, &bytes_read, end);
data += bytes_read;
- display_block (data, uvalue);
- data += uvalue;
- break;
- case DW_OP_GNU_entry_value:
- uvalue = read_leb128 (data, &bytes_read, 0);
- data += bytes_read;
- printf ("DW_OP_GNU_entry_value: (");
- if (decode_location_expression (data, pointer_size, offset_size,
- dwarf_version, uvalue,
- cu_offset, section))
- need_frame_base = 1;
- putchar (')');
+ display_block (data, uvalue, end);
data += uvalue;
break;
/* GNU extensions. */
case DW_OP_GNU_push_tls_address:
- printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
+ printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"));
break;
case DW_OP_GNU_uninit:
printf ("DW_OP_GNU_uninit");
}
if (dwarf_version == 2)
{
- printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s",
- dwarf_vmatoa ("x", byte_get (data, pointer_size)),
- dwarf_vmatoa ("d", read_sleb128 (data + pointer_size,
- &bytes_read)));
- data += pointer_size + bytes_read;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
}
else
{
- printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s",
- dwarf_vmatoa ("x", byte_get (data, offset_size)),
- dwarf_vmatoa ("d", read_sleb128 (data + offset_size,
- &bytes_read)));
- data += offset_size + bytes_read;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
}
+ printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s",
+ dwarf_vmatoa ("x", uvalue),
+ dwarf_vmatoa ("d", read_sleb128 (data,
+ &bytes_read, end)));
+ data += bytes_read;
+ break;
+ case DW_OP_GNU_entry_value:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_entry_value: (");
+ if (decode_location_expression (data, pointer_size, offset_size,
+ dwarf_version, uvalue,
+ cu_offset, section))
+ need_frame_base = 1;
+ putchar (')');
+ data += uvalue;
+ break;
+ case DW_OP_GNU_const_type:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_const_type: <0x%s> ",
+ dwarf_vmatoa ("x", cu_offset + uvalue));
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ display_block (data, uvalue, end);
+ data += uvalue;
+ break;
+ case DW_OP_GNU_regval_type:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_regval_type: %s (%s)",
+ dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
+ break;
+ case DW_OP_GNU_deref_type:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
+ printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue);
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
+ break;
+ case DW_OP_GNU_convert:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_convert <0x%s>",
+ dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
break;
+ case DW_OP_GNU_reinterpret:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_reinterpret <0x%s>",
+ dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
+ break;
+ case DW_OP_GNU_parameter_ref:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
+ printf ("DW_OP_GNU_parameter_ref: <0x%s>",
+ dwarf_vmatoa ("x", cu_offset + uvalue));
+ break;
+ case DW_OP_GNU_addr_index:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue));
+ break;
+ case DW_OP_GNU_const_index:
+ uvalue = read_uleb128 (data, &bytes_read, end);
+ data += bytes_read;
+ printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue));
+ break;
/* HP extensions. */
case DW_OP_HP_is_value:
return need_frame_base;
}
+/* Find the CU or TU set corresponding to the given CU_OFFSET.
+ This is used for DWARF package files. */
+
+static struct cu_tu_set *
+find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types)
+{
+ struct cu_tu_set *p;
+ unsigned int nsets;
+ unsigned int dw_sect;
+
+ if (do_types)
+ {
+ p = tu_sets;
+ nsets = tu_count;
+ dw_sect = DW_SECT_TYPES;
+ }
+ else
+ {
+ p = cu_sets;
+ nsets = cu_count;
+ dw_sect = DW_SECT_INFO;
+ }
+ while (nsets > 0)
+ {
+ if (p->section_offsets [dw_sect] == cu_offset)
+ return p;
+ p++;
+ nsets--;
+ }
+ return NULL;
+}
+
static unsigned char *
read_and_display_attr_value (unsigned long attribute,
unsigned long form,
unsigned char * data,
+ unsigned char * end,
dwarf_vma cu_offset,
dwarf_vma pointer_size,
dwarf_vma offset_size,
int dwarf_version,
debug_info * debug_info_p,
int do_loc,
- struct dwarf_section * section)
+ struct dwarf_section * section,
+ struct cu_tu_set * this_set)
{
dwarf_vma uvalue = 0;
unsigned char *block_start = NULL;
unsigned char * orig_data = data;
unsigned int bytes_read;
+ if (data == end)
+ {
+ warn (_("corrupt attribute\n"));
+ return data;
+ }
+
switch (form)
{
default:
case DW_FORM_ref_addr:
if (dwarf_version == 2)
- {
- uvalue = byte_get (data, pointer_size);
- data += pointer_size;
- }
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
else if (dwarf_version == 3 || dwarf_version == 4)
- {
- uvalue = byte_get (data, offset_size);
- data += offset_size;
- }
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
else
error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
break;
case DW_FORM_addr:
- uvalue = byte_get (data, pointer_size);
- data += pointer_size;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
break;
case DW_FORM_strp:
case DW_FORM_sec_offset:
- uvalue = byte_get (data, offset_size);
- data += offset_size;
+ case DW_FORM_GNU_ref_alt:
+ case DW_FORM_GNU_strp_alt:
+ SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
break;
case DW_FORM_flag_present:
case DW_FORM_ref1:
case DW_FORM_flag:
case DW_FORM_data1:
- uvalue = byte_get (data++, 1);
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
break;
case DW_FORM_ref2:
case DW_FORM_data2:
- uvalue = byte_get (data, 2);
- data += 2;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
break;
case DW_FORM_ref4:
case DW_FORM_data4:
- uvalue = byte_get (data, 4);
- data += 4;
+ SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
break;
case DW_FORM_sdata:
- uvalue = read_leb128 (data, & bytes_read, 1);
+ uvalue = read_sleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ break;
+
+ case DW_FORM_GNU_str_index:
+ uvalue = read_uleb128 (data, & bytes_read, end);
data += bytes_read;
break;
case DW_FORM_ref_udata:
case DW_FORM_udata:
- uvalue = read_leb128 (data, & bytes_read, 0);
+ uvalue = read_uleb128 (data, & bytes_read, end);
data += bytes_read;
break;
case DW_FORM_indirect:
- form = read_leb128 (data, & bytes_read, 0);
+ form = read_uleb128 (data, & bytes_read, end);
data += bytes_read;
if (!do_loc)
printf (" %s", get_FORM_name (form));
- return read_and_display_attr_value (attribute, form, data,
+ return read_and_display_attr_value (attribute, form, data, end,
cu_offset, pointer_size,
offset_size, dwarf_version,
debug_info_p, do_loc,
- section);
+ section, this_set);
+ case DW_FORM_GNU_addr_index:
+ uvalue = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ break;
}
switch (form)
printf (" <0x%s>", dwarf_vmatoa ("x",uvalue));
break;
+ case DW_FORM_GNU_ref_alt:
+ if (!do_loc)
+ printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue));
+ break;
+
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
case DW_FORM_data8:
if (!do_loc)
{
- uvalue = byte_get (data, 4);
- printf (" 0x%s", dwarf_vmatoa ("x", uvalue));
- printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
+ dwarf_vma high_bits;
+ char buf[64];
+
+ SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
+
+ printf (" 0x%s",
+ dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
}
+
if ((do_loc || do_debug_loc || do_debug_ranges)
&& num_debug_info_entries == 0)
{
if (sizeof (uvalue) == 8)
- uvalue = byte_get (data, 8);
+ SAFE_BYTE_GET (uvalue, data, 8, end);
else
error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n"));
}
+
data += 8;
break;
case DW_FORM_string:
if (!do_loc)
- printf (" %s", data);
- data += strlen ((char *) data) + 1;
+ printf (" %.*s", (int) (end - data), data);
+ data += strnlen ((char *) data, end - data) + 1;
break;
case DW_FORM_block:
case DW_FORM_exprloc:
- uvalue = read_leb128 (data, & bytes_read, 0);
+ uvalue = read_uleb128 (data, & bytes_read, end);
block_start = data + bytes_read;
if (do_loc)
data = block_start + uvalue;
else
- data = display_block (block_start, uvalue);
+ data = display_block (block_start, uvalue, end);
break;
case DW_FORM_block1:
- uvalue = byte_get (data, 1);
+ SAFE_BYTE_GET (uvalue, data, 1, end);
block_start = data + 1;
if (do_loc)
data = block_start + uvalue;
else
- data = display_block (block_start, uvalue);
+ data = display_block (block_start, uvalue, end);
break;
case DW_FORM_block2:
- uvalue = byte_get (data, 2);
+ SAFE_BYTE_GET (uvalue, data, 2, end);
block_start = data + 2;
if (do_loc)
data = block_start + uvalue;
else
- data = display_block (block_start, uvalue);
+ data = display_block (block_start, uvalue, end);
break;
case DW_FORM_block4:
- uvalue = byte_get (data, 4);
+ SAFE_BYTE_GET (uvalue, data, 4, end);
block_start = data + 4;
if (do_loc)
data = block_start + uvalue;
else
- data = display_block (block_start, uvalue);
+ data = display_block (block_start, uvalue, end);
break;
case DW_FORM_strp:
fetch_indirect_string (uvalue));
break;
+ case DW_FORM_GNU_str_index:
+ if (!do_loc)
+ {
+ const char *suffix = strrchr (section->name, '.');
+ int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0;
+
+ printf (_(" (indexed string: 0x%s): %s"),
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_string (uvalue, this_set, offset_size, dwo));
+ }
+ break;
+
+ case DW_FORM_GNU_strp_alt:
+ if (!do_loc)
+ printf (_(" (alt indirect string, offset: 0x%s)"),
+ dwarf_vmatoa ("x", uvalue));
+ break;
+
case DW_FORM_indirect:
/* 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;
- }
+ dwarf_vma high_bits;
+ char buf[64];
+
+ SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
+ printf (" signature: 0x%s",
+ dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
}
- else
- data += 8;
+ data += 8;
+ break;
+
+ case DW_FORM_GNU_addr_index:
+ if (!do_loc)
+ printf (_(" (addr_index: 0x%s): %s"),
+ dwarf_vmatoa ("x", uvalue),
+ fetch_indexed_value (uvalue * pointer_size, pointer_size));
break;
default:
}
if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
+ && num_debug_info_entries == 0
+ && debug_info_p != NULL)
{
switch (attribute)
{
case DW_AT_GNU_call_site_data_value:
case DW_AT_GNU_call_site_target:
case DW_AT_GNU_call_site_target_clobbered:
- if (form == DW_FORM_data4
- || form == DW_FORM_data8
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
|| form == DW_FORM_sec_offset)
{
/* Process location list. */
lmax, sizeof (*debug_info_p->have_frame_base));
debug_info_p->max_loc_offsets = lmax;
}
+ if (this_set != NULL)
+ uvalue += this_set->section_offsets [DW_SECT_LOC];
debug_info_p->loc_offsets [num] = uvalue;
debug_info_p->have_frame_base [num] = have_frame_base;
debug_info_p->num_loc_offsets++;
debug_info_p->base_address = uvalue;
break;
+ case DW_AT_GNU_addr_base:
+ debug_info_p->addr_base = uvalue;
+ break;
+
+ case DW_AT_GNU_ranges_base:
+ debug_info_p->ranges_base = uvalue;
+ break;
+
case DW_AT_ranges:
- if (form == DW_FORM_data4
- || form == DW_FORM_data8
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
|| form == DW_FORM_sec_offset)
{
/* Process range list. */
}
}
- if (do_loc)
+ if (do_loc || attribute == 0)
return data;
/* For some attributes we can display further information. */
case DW_LANG_D: printf ("(D)"); break;
/* DWARF 4 values. */
case DW_LANG_Python: printf ("(Python)"); break;
+ /* DWARF 5 values. */
+ case DW_LANG_Go: printf ("(Go)"); break;
/* MIPS extension. */
case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
/* UPC extension. */
case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
default:
if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
- printf ("(implementation defined: %s)",
+ printf (_("(implementation defined: %s)"),
dwarf_vmatoa ("x", uvalue));
else
- printf ("(Unknown: %s)", dwarf_vmatoa ("x", uvalue));
+ printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue));
break;
}
break;
default:
if (uvalue >= DW_ATE_lo_user
&& uvalue <= DW_ATE_hi_user)
- printf ("(user defined type)");
+ printf (_("(user defined type)"));
else
- printf ("(unknown type)");
+ printf (_("(unknown type)"));
break;
}
break;
case DW_ACCESS_protected: printf ("(protected)"); break;
case DW_ACCESS_private: printf ("(private)"); break;
default:
- printf ("(unknown accessibility)");
+ printf (_("(unknown accessibility)"));
break;
}
break;
case DW_VIS_local: printf ("(local)"); break;
case DW_VIS_exported: printf ("(exported)"); break;
case DW_VIS_qualified: printf ("(qualified)"); break;
- default: printf ("(unknown visibility)"); break;
+ default: printf (_("(unknown visibility)")); break;
}
break;
case DW_VIRTUALITY_none: printf ("(none)"); break;
case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
- default: printf ("(unknown virtuality)"); break;
+ default: printf (_("(unknown virtuality)")); break;
}
break;
case DW_ID_up_case: printf ("(up_case)"); break;
case DW_ID_down_case: printf ("(down_case)"); break;
case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
- default: printf ("(unknown case)"); break;
+ default: printf (_("(unknown case)")); break;
}
break;
default:
if (uvalue >= DW_CC_lo_user
&& uvalue <= DW_CC_hi_user)
- printf ("(user defined)");
+ printf (_("(user defined)"));
else
- printf ("(unknown convention)");
+ printf (_("(unknown convention)"));
}
break;
case DW_AT_ordering:
switch (uvalue)
{
- case -1: printf ("(undefined)"); break;
+ case -1: printf (_("(undefined)")); break;
case 0: printf ("(row major)"); break;
case 1: printf ("(column major)"); break;
}
case DW_AT_GNU_call_site_data_value:
case DW_AT_GNU_call_site_target:
case DW_AT_GNU_call_site_target_clobbered:
- if (form == DW_FORM_data4
- || form == DW_FORM_data8
+ if ((dwarf_version < 4
+ && (form == DW_FORM_data4 || form == DW_FORM_data8))
|| form == DW_FORM_sec_offset)
printf (_("(location list)"));
/* Fall through. */
case DW_AT_import:
{
- if (form == DW_FORM_ref_sig8)
+ if (form == DW_FORM_ref_sig8
+ || form == DW_FORM_GNU_ref_alt)
break;
if (form == DW_FORM_ref1
|| form == DW_FORM_ref2
- || form == DW_FORM_ref4)
+ || form == DW_FORM_ref4
+ || form == DW_FORM_ref_udata)
uvalue += cu_offset;
if (uvalue >= section->size)
unsigned long abbrev_number;
abbrev_entry * entry;
- abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
+ abbrev_number = read_uleb128 (section->start + uvalue, NULL, end);
- 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 (_("[Abbrev Number: %ld"), abbrev_number);
+ /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will
+ use different abbrev table, and we don't track .debug_info chunks
+ yet. */
+ if (form != DW_FORM_ref_addr)
+ {
+ 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 ("]");
}
}
return data;
}
-static char *
+static const char *
get_AT_name (unsigned long attribute)
{
- switch (attribute)
- {
- case DW_AT_sibling: return "DW_AT_sibling";
- case DW_AT_location: return "DW_AT_location";
- case DW_AT_name: return "DW_AT_name";
- case DW_AT_ordering: return "DW_AT_ordering";
- case DW_AT_subscr_data: return "DW_AT_subscr_data";
- case DW_AT_byte_size: return "DW_AT_byte_size";
- case DW_AT_bit_offset: return "DW_AT_bit_offset";
- case DW_AT_bit_size: return "DW_AT_bit_size";
- case DW_AT_element_list: return "DW_AT_element_list";
- case DW_AT_stmt_list: return "DW_AT_stmt_list";
- case DW_AT_low_pc: return "DW_AT_low_pc";
- case DW_AT_high_pc: return "DW_AT_high_pc";
- case DW_AT_language: return "DW_AT_language";
- case DW_AT_member: return "DW_AT_member";
- case DW_AT_discr: return "DW_AT_discr";
- case DW_AT_discr_value: return "DW_AT_discr_value";
- case DW_AT_visibility: return "DW_AT_visibility";
- case DW_AT_import: return "DW_AT_import";
- case DW_AT_string_length: return "DW_AT_string_length";
- case DW_AT_common_reference: return "DW_AT_common_reference";
- case DW_AT_comp_dir: return "DW_AT_comp_dir";
- case DW_AT_const_value: return "DW_AT_const_value";
- case DW_AT_containing_type: return "DW_AT_containing_type";
- case DW_AT_default_value: return "DW_AT_default_value";
- case DW_AT_inline: return "DW_AT_inline";
- case DW_AT_is_optional: return "DW_AT_is_optional";
- case DW_AT_lower_bound: return "DW_AT_lower_bound";
- case DW_AT_producer: return "DW_AT_producer";
- case DW_AT_prototyped: return "DW_AT_prototyped";
- case DW_AT_return_addr: return "DW_AT_return_addr";
- case DW_AT_start_scope: return "DW_AT_start_scope";
- case DW_AT_stride_size: return "DW_AT_stride_size";
- case DW_AT_upper_bound: return "DW_AT_upper_bound";
- case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
- case DW_AT_accessibility: return "DW_AT_accessibility";
- case DW_AT_address_class: return "DW_AT_address_class";
- case DW_AT_artificial: return "DW_AT_artificial";
- case DW_AT_base_types: return "DW_AT_base_types";
- case DW_AT_calling_convention: return "DW_AT_calling_convention";
- case DW_AT_count: return "DW_AT_count";
- case DW_AT_data_member_location: return "DW_AT_data_member_location";
- case DW_AT_decl_column: return "DW_AT_decl_column";
- case DW_AT_decl_file: return "DW_AT_decl_file";
- case DW_AT_decl_line: return "DW_AT_decl_line";
- case DW_AT_declaration: return "DW_AT_declaration";
- case DW_AT_discr_list: return "DW_AT_discr_list";
- case DW_AT_encoding: return "DW_AT_encoding";
- case DW_AT_external: return "DW_AT_external";
- case DW_AT_frame_base: return "DW_AT_frame_base";
- case DW_AT_friend: return "DW_AT_friend";
- case DW_AT_identifier_case: return "DW_AT_identifier_case";
- case DW_AT_macro_info: return "DW_AT_macro_info";
- case DW_AT_namelist_items: return "DW_AT_namelist_items";
- case DW_AT_priority: return "DW_AT_priority";
- case DW_AT_segment: return "DW_AT_segment";
- case DW_AT_specification: return "DW_AT_specification";
- case DW_AT_static_link: return "DW_AT_static_link";
- case DW_AT_type: return "DW_AT_type";
- case DW_AT_use_location: return "DW_AT_use_location";
- case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
- case DW_AT_virtuality: return "DW_AT_virtuality";
- case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
- /* DWARF 2.1 values. */
- case DW_AT_allocated: return "DW_AT_allocated";
- case DW_AT_associated: return "DW_AT_associated";
- case DW_AT_data_location: return "DW_AT_data_location";
- case DW_AT_stride: return "DW_AT_stride";
- case DW_AT_entry_pc: return "DW_AT_entry_pc";
- case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
- case DW_AT_extension: return "DW_AT_extension";
- case DW_AT_ranges: return "DW_AT_ranges";
- case DW_AT_trampoline: return "DW_AT_trampoline";
- 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";
- 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_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";
- case DW_AT_GNU_call_site_value: return "DW_AT_GNU_call_site_value";
- case DW_AT_GNU_call_site_data_value: return "DW_AT_GNU_call_site_data_value";
- case DW_AT_GNU_call_site_target: return "DW_AT_GNU_call_site_target";
- case DW_AT_GNU_call_site_target_clobbered: return "DW_AT_GNU_call_site_target_clobbered";
- case DW_AT_GNU_tail_call: return "DW_AT_GNU_tail_call";
- case DW_AT_GNU_all_tail_call_sites: return "DW_AT_GNU_all_tail_call_sites";
- case DW_AT_GNU_all_call_sites: return "DW_AT_GNU_all_call_sites";
- case DW_AT_GNU_all_source_call_sites: return "DW_AT_GNU_all_source_call_sites";
-
- /* 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";
+ const char *name;
- default:
- {
- static char buffer[100];
+ if (attribute == 0)
+ return "DW_AT value: 0";
- snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
- attribute);
- return buffer;
- }
+ /* One value is shared by the MIPS and HP extensions: */
+ if (attribute == DW_AT_MIPS_fde)
+ return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
+
+ name = get_DW_AT_name (attribute);
+
+ if (name == NULL)
+ {
+ static char buffer[100];
+
+ snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
+ attribute);
+ return buffer;
}
+
+ return name;
}
static unsigned char *
read_and_display_attr (unsigned long attribute,
unsigned long form,
unsigned char * data,
+ unsigned char * end,
dwarf_vma cu_offset,
dwarf_vma pointer_size,
dwarf_vma offset_size,
int dwarf_version,
debug_info * debug_info_p,
int do_loc,
- struct dwarf_section * section)
+ struct dwarf_section * section,
+ struct cu_tu_set * this_set)
{
if (!do_loc)
printf (" %-18s:", get_AT_name (attribute));
- data = read_and_display_attr_value (attribute, form, data, cu_offset,
- pointer_size, offset_size,
+ data = read_and_display_attr_value (attribute, form, data, end,
+ cu_offset, pointer_size, offset_size,
dwarf_version, debug_info_p,
- do_loc, section);
+ do_loc, section, this_set);
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. If do_types is non-zero, we are processing
&& num_debug_info_entries == 0
&& ! do_types)
{
- unsigned long length;
+ dwarf_vma length;
/* First scan the section to get the number of comp units. */
for (section_begin = start, num_units = 0; section_begin < end;
/* Read the first 4 bytes. For a 32-bit DWARF section, this
will be the length. For a 64-bit DWARF section, it'll be
the escape code 0xffffffff followed by an 8 byte length. */
- length = byte_get (section_begin, 4);
+ SAFE_BYTE_GET (length, section_begin, 4, end);
if (length == 0xffffffff)
{
- length = byte_get (section_begin + 4, 8);
+ SAFE_BYTE_GET (length, section_begin + 4, 8, end);
section_begin += length + 12;
}
else if (length >= 0xfffffff0 && length < 0xffffffff)
{
- warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name);
+ warn (_("Reserved length value (0x%s) found in section %s\n"),
+ dwarf_vmatoa ("x", length), section->name);
return 0;
}
else
relocations to an object file. */
if ((signed long) length <= 0)
{
- warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name);
+ warn (_("Corrupt unit length (0x%s) found in section %s\n"),
+ dwarf_vmatoa ("x", length), section->name);
return 0;
}
}
if (!do_loc)
{
- printf (_("Contents of the %s section:\n\n"), section->name);
+ if (dwarf_start_die == 0)
+ printf (_("Contents of the %s section:\n\n"), section->name);
load_debug_section (str, file);
+ load_debug_section (str_dwo, file);
+ load_debug_section (str_index, file);
+ load_debug_section (str_index_dwo, file);
+ load_debug_section (debug_addr, file);
}
load_debug_section (abbrev_sec, file);
DWARF2_Internal_CompUnit compunit;
unsigned char *hdrptr;
unsigned char *tags;
- int level;
+ int level, last_level, saved_level;
dwarf_vma cu_offset;
int offset_size;
int initial_length_size;
- unsigned char signature[8] = { 0 };
- unsigned long type_offset = 0;
+ dwarf_vma signature_high = 0;
+ dwarf_vma signature_low = 0;
+ dwarf_vma type_offset = 0;
+ struct cu_tu_set *this_set;
+ dwarf_vma abbrev_base;
+ size_t abbrev_size;
hdrptr = start;
- compunit.cu_length = byte_get (hdrptr, 4);
- hdrptr += 4;
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end);
if (compunit.cu_length == 0xffffffff)
{
- compunit.cu_length = byte_get (hdrptr, 8);
- hdrptr += 8;
+ SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end);
offset_size = 8;
initial_length_size = 12;
}
initial_length_size = 4;
}
- compunit.cu_version = byte_get (hdrptr, 2);
- hdrptr += 2;
+ SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end);
cu_offset = start - section_begin;
- compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
+ this_set = find_cu_tu_set_v2 (cu_offset, do_types);
- compunit.cu_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
+ SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
- if (do_types)
- {
- int i;
+ if (this_set == NULL)
+ {
+ abbrev_base = 0;
+ abbrev_size = debug_displays [abbrev_sec].section.size;
+ }
+ else
+ {
+ abbrev_base = this_set->section_offsets [DW_SECT_ABBREV];
+ abbrev_size = this_set->section_sizes [DW_SECT_ABBREV];
+ }
- for (i = 0; i < 8; i++)
- {
- signature[i] = byte_get (hdrptr, 1);
- hdrptr += 1;
- }
+ SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
- type_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
+ if (do_types)
+ {
+ SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end);
+ hdrptr += 8;
+ SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end);
}
if ((do_loc || do_debug_loc || do_debug_ranges)
debug_information [unit].offset_size = offset_size;
debug_information [unit].dwarf_version = compunit.cu_version;
debug_information [unit].base_address = 0;
+ debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE;
+ debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE;
debug_information [unit].loc_offsets = NULL;
debug_information [unit].have_frame_base = NULL;
debug_information [unit].max_loc_offsets = 0;
debug_information [unit].num_range_lists = 0;
}
- if (!do_loc)
+ if (!do_loc && dwarf_start_die == 0)
{
printf (_(" Compilation Unit @ offset 0x%s:\n"),
dwarf_vmatoa ("x", cu_offset));
printf (_(" Length: 0x%s (%s)\n"),
dwarf_vmatoa ("x", compunit.cu_length),
- initial_length_size == 8 ? "64-bit" : "32-bit");
+ offset_size == 8 ? "64-bit" : "32-bit");
printf (_(" Version: %d\n"), compunit.cu_version);
- printf (_(" Abbrev Offset: %s\n"),
- dwarf_vmatoa ("d", compunit.cu_abbrev_offset));
+ printf (_(" Abbrev Offset: 0x%s\n"),
+ dwarf_vmatoa ("x", 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);
+ char buf[64];
+
+ printf (_(" Signature: 0x%s\n"),
+ dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ printf (_(" Type Offset: 0x%s\n"),
+ dwarf_vmatoa ("x", type_offset));
+ }
+ if (this_set != NULL)
+ {
+ dwarf_vma *offsets = this_set->section_offsets;
+ size_t *sizes = this_set->section_sizes;
+
+ printf (_(" Section contributions:\n"));
+ printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV]));
+ printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_LINE]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_LINE]));
+ printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_LOC]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_LOC]));
+ printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
+ dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]),
+ dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS]));
}
}
/* Process the abbrevs used by this compilation unit. DWARF
sections under Mach-O have non-zero addresses. */
- if (compunit.cu_abbrev_offset >= debug_displays [abbrev_sec].section.size)
+ if (compunit.cu_abbrev_offset >= abbrev_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);
+ (unsigned long) abbrev_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);
+ (((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + compunit.cu_abbrev_offset),
+ ((unsigned char *) debug_displays [abbrev_sec].section.start
+ + abbrev_base + abbrev_size));
level = 0;
+ last_level = level;
+ saved_level = -1;
while (tags < start)
{
unsigned int bytes_read;
unsigned long die_offset;
abbrev_entry *entry;
abbrev_attr *attr;
+ int do_printing = 1;
die_offset = tags - section_begin;
- abbrev_number = read_leb128 (tags, & bytes_read, 0);
+ abbrev_number = read_uleb128 (tags, & bytes_read, start);
tags += bytes_read;
/* A null DIE marks the end of a list of siblings or it may also be
break;
}
+ if (!do_loc && die_offset >= dwarf_start_die
+ && (dwarf_cutoff_level == -1
+ || level < dwarf_cutoff_level))
+ printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
+ level, die_offset);
+
--level;
if (level < 0)
{
if (num_bogus_warns < 3)
{
- warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
- die_offset);
+ warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
+ die_offset, section->name);
num_bogus_warns ++;
if (num_bogus_warns == 3)
warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
}
}
+ if (dwarf_start_die != 0 && level < saved_level)
+ return 1;
continue;
}
if (!do_loc)
- printf (_(" <%d><%lx>: Abbrev Number: %lu"),
- level, die_offset, abbrev_number);
+ {
+ if (dwarf_start_die != 0 && die_offset < dwarf_start_die)
+ do_printing = 0;
+ else
+ {
+ if (dwarf_start_die != 0 && die_offset == dwarf_start_die)
+ saved_level = level;
+ do_printing = (dwarf_cutoff_level == -1
+ || level < dwarf_cutoff_level);
+ if (do_printing)
+ printf (_(" <%d><%lx>: Abbrev Number: %lu"),
+ level, die_offset, abbrev_number);
+ else if (dwarf_cutoff_level == -1
+ || last_level < dwarf_cutoff_level)
+ printf (_(" <%d><%lx>: ...\n"), level, die_offset);
+ last_level = level;
+ }
+ }
/* Scan through the abbreviation list until we reach the
correct entry. */
if (entry == NULL)
{
- if (!do_loc)
+ if (!do_loc && do_printing)
{
printf ("\n");
fflush (stdout);
return 0;
}
- if (!do_loc)
+ if (!do_loc && do_printing)
printf (" (%s)\n", get_TAG_name (entry->tag));
switch (entry->tag)
break;
}
- for (attr = entry->first_attr; attr; attr = attr->next)
+ for (attr = entry->first_attr;
+ attr && attr->attribute;
+ attr = attr->next)
{
- if (! do_loc)
+ debug_info *arg;
+
+ if (! do_loc && do_printing)
/* Show the offset from where the tag was extracted. */
- printf (" <%2lx>", (unsigned long)(tags - section_begin));
+ printf (" <%lx>", (unsigned long)(tags - section_begin));
+
+ arg = debug_information;
+ if (debug_information)
+ arg += unit;
tags = read_and_display_attr (attr->attribute,
attr->form,
- tags, cu_offset,
+ tags,
+ end,
+ cu_offset,
compunit.cu_pointer_size,
offset_size,
compunit.cu_version,
- debug_information + unit,
- do_loc, section);
+ arg,
+ do_loc || ! do_printing,
+ section,
+ this_set);
}
if (entry->children)
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. */
+ section then do not bother to repeat the task. */
if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
return 0;
if (num_debug_info_entries > 0)
return num_debug_info_entries;
+ /* If this is a DWARF package file, load the CU and TU indexes. */
+ load_cu_tu_indexes (file);
+
if (load_debug_section (info, file)
&& process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0))
return num_debug_info_entries;
+ else if (load_debug_section (info_dwo, file)
+ && process_debug_info (&debug_displays [info_dwo].section, file,
+ abbrev_dwo, 1, 0))
+ return num_debug_info_entries;
num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
return 0;
}
-static int
-display_debug_lines_raw (struct dwarf_section *section,
- unsigned char *data,
- unsigned char *end)
-{
- unsigned char *start = section->start;
-
- printf (_("Raw dump of debug contents of section %s:\n\n"),
- section->name);
+/* Read a DWARF .debug_line section header starting at DATA.
+ Upon success returns an updated DATA pointer and the LINFO
+ structure and the END_OF_SEQUENCE pointer will be filled in.
+ Otherwise returns NULL. */
- while (data < end)
- {
- 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;
+static unsigned char *
+read_debug_line_header (struct dwarf_section * section,
+ unsigned char * data,
+ unsigned char * end,
+ DWARF2_Internal_LineInfo * linfo,
+ unsigned char ** end_of_sequence)
+{
+ unsigned char *hdrptr;
+ unsigned int offset_size;
+ unsigned int initial_length_size;
+ /* Extract information from the Line Number Program Header.
+ (section 6.2.4 in the Dwarf3 doc). */
hdrptr = data;
- hdroff = hdrptr - start;
- /* Check the length of the block. */
- linfo.li_length = byte_get (hdrptr, 4);
- hdrptr += 4;
+ /* Get and check the length of the block. */
+ SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end);
- if (linfo.li_length == 0xffffffff)
+ if (linfo->li_length == 0xffffffff)
{
/* This section is 64-bit DWARF 3. */
- linfo.li_length = byte_get (hdrptr, 8);
- hdrptr += 8;
+ SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end);
offset_size = 8;
initial_length_size = 12;
}
initial_length_size = 4;
}
- if (linfo.li_length + initial_length_size > section->size)
+ if (linfo->li_length + initial_length_size > section->size)
{
- warn
- (_("The information in section %s appears to be corrupt - the section is too small\n"),
- section->name);
- return 0;
- }
-
- /* Check its version number. */
- linfo.li_version = byte_get (hdrptr, 2);
- hdrptr += 2;
- if (linfo.li_version != 2
- && linfo.li_version != 3
- && linfo.li_version != 4)
+ /* If the length is just a bias against the initial_length_size then
+ this means that the field has a relocation against it which has not
+ been applied. (Ie we are dealing with an object file, not a linked
+ binary). Do not complain but instead assume that the rest of the
+ section applies to this particular header. */
+ if (linfo->li_length == - initial_length_size)
+ {
+ linfo->li_length = section->size - initial_length_size;
+ }
+ else
+ {
+ warn (_("The line info appears to be corrupt - "
+ "the section is too small\n"));
+ return NULL;
+ }
+ }
+
+ /* Get and check the version number. */
+ SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end);
+
+ 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;
+ return NULL;
}
- 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)
+ SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end);
+ SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end);
+
+ if (linfo->li_version >= 4)
{
- linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
- hdrptr++;
- if (linfo.li_max_ops_per_insn == 0)
+ SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end);
+
+ if (linfo->li_max_ops_per_insn == 0)
{
warn (_("Invalid maximum operations per insn.\n"));
- return 0;
+ return NULL;
}
}
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++;
+ linfo->li_max_ops_per_insn = 1;
- /* Sign extend the line base field. */
- linfo.li_line_base <<= 24;
- linfo.li_line_base >>= 24;
-
- printf (_(" Offset: 0x%lx\n"), hdroff);
- printf (_(" Length: %ld\n"), (long) 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);
+ SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end);
+ SAFE_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end);
+ SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end);
+ SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end);
- end_of_sequence = data + linfo.li_length + initial_length_size;
-
- reset_state_machine (linfo.li_default_is_stmt);
+ /* Sign extend the line base field. */
+ linfo->li_line_base <<= 24;
+ linfo->li_line_base >>= 24;
- /* Display the contents of the Opcodes table. */
- standard_opcodes = hdrptr;
+ * end_of_sequence = data + linfo->li_length + initial_length_size;
+ return hdrptr;
+}
- printf (_("\n Opcodes:\n"));
+static int
+display_debug_lines_raw (struct dwarf_section *section,
+ unsigned char *data,
+ unsigned char *end)
+{
+ unsigned char *start = section->start;
- for (i = 1; i < linfo.li_opcode_base; i++)
- printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
+ printf (_("Raw dump of debug contents of section %s:\n\n"),
+ section->name);
- /* Display the contents of the Directory table. */
- data = standard_opcodes + linfo.li_opcode_base - 1;
+ while (data < end)
+ {
+ static DWARF2_Internal_LineInfo saved_linfo;
+ DWARF2_Internal_LineInfo linfo;
+ unsigned char *standard_opcodes;
+ unsigned char *end_of_sequence;
+ int i;
- if (*data == 0)
- printf (_("\n The Directory Table is empty.\n"));
- else
+ if (const_strneq (section->name, ".debug_line.")
+ /* Note: the following does not apply to .debug_line.dwo sections.
+ These are full debug_line sections. */
+ && strcmp (section->name, ".debug_line.dwo") != 0)
{
- printf (_("\n The Directory Table:\n"));
-
- while (*data != 0)
- {
- printf (" %s\n", data);
-
- data += strlen ((char *) data) + 1;
- }
+ /* Sections named .debug_line.<foo> are fragments of a .debug_line
+ section containing just the Line Number Statements. They are
+ created by the assembler and intended to be used alongside gcc's
+ -ffunction-sections command line option. When the linker's
+ garbage collection decides to discard a .text.<foo> section it
+ can then also discard the line number information in .debug_line.<foo>.
+
+ Since the section is a fragment it does not have the details
+ needed to fill out a LineInfo structure, so instead we use the
+ details from the last full debug_line section that we processed. */
+ end_of_sequence = end;
+ standard_opcodes = NULL;
+ linfo = saved_linfo;
+ reset_state_machine (linfo.li_default_is_stmt);
}
-
- /* Skip the NUL at the end of the table. */
- data++;
-
- /* Display the contents of the File Name table. */
- if (*data == 0)
- printf (_("\n The File Name Table is empty.\n"));
else
{
- printf (_("\n The File Name Table:\n"));
- printf (_(" Entry\tDir\tTime\tSize\tName\n"));
+ unsigned char * hdrptr;
- while (*data != 0)
- {
- unsigned char *name;
- unsigned int bytes_read;
+ if ((hdrptr = read_debug_line_header (section, data, end, & linfo,
+ & end_of_sequence)) == NULL)
+ return 0;
- printf (" %d\t", ++state_machine_regs.last_file_entry);
- name = data;
-
- data += strlen ((char *) data) + 1;
-
- printf ("%s\t",
- dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
- data += bytes_read;
- printf ("%s\t",
- dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
- data += bytes_read;
- printf ("%s\t",
- dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
- data += bytes_read;
- printf ("%s\n", name);
- }
- }
+ printf (_(" Offset: 0x%lx\n"), (long)(data - start));
+ printf (_(" Length: %ld\n"), (long) 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);
- /* Skip the NUL at the end of the table. */
- data++;
+ reset_state_machine (linfo.li_default_is_stmt);
- /* Now display the statements. */
- printf (_("\n Line Number Statements:\n"));
+ /* Display the contents of the Opcodes table. */
+ standard_opcodes = hdrptr;
- while (data < end_of_sequence)
- {
- unsigned char op_code;
- dwarf_signed_vma adv;
- dwarf_vma uladv;
- unsigned int bytes_read;
+ printf (_("\n Opcodes:\n"));
- op_code = *data++;
+ for (i = 1; i < linfo.li_opcode_base; i++)
+ printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
- 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;
- printf (_(" Special opcode %d: "
- "advance Address by %s to 0x%s"),
- op_code, dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", 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 %s to 0x%s[%d]"),
- op_code, dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", 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 %s to %d\n"),
- dwarf_vmatoa ("d", adv), state_machine_regs.line);
- }
- else switch (op_code)
- {
- case DW_LNS_extended_op:
- data += process_extended_line_op (data, linfo.li_default_is_stmt);
- break;
+ /* Display the contents of the Directory table. */
+ data = standard_opcodes + linfo.li_opcode_base - 1;
- case DW_LNS_copy:
- printf (_(" Copy\n"));
- break;
+ if (*data == 0)
+ printf (_("\n The Directory Table is empty.\n"));
+ else
+ {
+ printf (_("\n The Directory Table:\n"));
- 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;
- printf (_(" Advance PC by %s to 0x%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
- }
- else
+ while (*data != 0)
{
- 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 %s to 0x%s[%d]\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index);
+ printf (" %s\n", data);
+
+ data += strnlen ((char *) data, end - data) + 1;
}
- break;
+ }
- case DW_LNS_advance_line:
- adv = read_sleb128 (data, & bytes_read);
- data += bytes_read;
- state_machine_regs.line += adv;
- printf (_(" Advance Line by %s to %d\n"),
- dwarf_vmatoa ("d", adv),
- state_machine_regs.line);
- break;
+ /* Skip the NUL at the end of the table. */
+ data++;
- case DW_LNS_set_file:
- adv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set File Name to entry %s in the File Name Table\n"),
- dwarf_vmatoa ("d", adv));
- state_machine_regs.file = adv;
- break;
+ /* Display the contents of the File Name table. */
+ if (*data == 0)
+ printf (_("\n The File Name Table is empty.\n"));
+ else
+ {
+ printf (_("\n The File Name Table:\n"));
+ printf (_(" Entry\tDir\tTime\tSize\tName\n"));
- case DW_LNS_set_column:
- uladv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set column to %s\n"),
- dwarf_vmatoa ("u", uladv));
- state_machine_regs.column = uladv;
- break;
+ while (*data != 0)
+ {
+ unsigned char *name;
+ unsigned int bytes_read;
- case DW_LNS_negate_stmt:
- adv = state_machine_regs.is_stmt;
- adv = ! adv;
- printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
- state_machine_regs.is_stmt = adv;
- break;
+ printf (" %d\t", ++state_machine_regs.last_file_entry);
+ name = data;
+ data += strnlen ((char *) data, end - data) + 1;
- case DW_LNS_set_basic_block:
- printf (_(" Set basic block\n"));
- state_machine_regs.basic_block = 1;
- break;
+ printf ("%s\t",
+ dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
+ data += bytes_read;
+ printf ("%s\t",
+ dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
+ data += bytes_read;
+ printf ("%s\t",
+ dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
+ data += bytes_read;
+ printf ("%s\n", name);
- case DW_LNS_const_add_pc:
- 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 %s to 0x%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", 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 %s to 0x%s[%d]\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index);
+ if (data == end)
+ {
+ warn (_("Corrupt file name table entry\n"));
+ break;
+ }
}
- 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 %s to 0x%s\n"),
- dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
- break;
+ }
- case DW_LNS_set_prologue_end:
- printf (_(" Set prologue_end to true\n"));
- break;
+ /* Skip the NUL at the end of the table. */
+ data++;
+ putchar ('\n');
+ saved_linfo = linfo;
+ }
- case DW_LNS_set_epilogue_begin:
- printf (_(" Set epilogue_begin to true\n"));
- break;
+ /* Now display the statements. */
+ if (data >= end_of_sequence)
+ printf (_(" No Line Number Statements.\n"));
+ else
+ {
+ printf (_(" Line Number Statements:\n"));
- case DW_LNS_set_isa:
- uladv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
- break;
+ while (data < end_of_sequence)
+ {
+ unsigned char op_code;
+ dwarf_signed_vma adv;
+ dwarf_vma uladv;
+ unsigned int bytes_read;
- default:
- printf (_(" Unknown opcode %d with operands: "), op_code);
+ op_code = *data++;
- for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ if (op_code >= linfo.li_opcode_base)
{
- printf ("0x%s%s", dwarf_vmatoa ("x", read_leb128 (data,
- &bytes_read, 0)),
- i == 1 ? "" : ", ");
- data += bytes_read;
+ 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 %s to 0x%s"),
+ op_code, dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", 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 %s to 0x%s[%d]"),
+ op_code, dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", 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 %s to %d\n"),
+ dwarf_vmatoa ("d", adv), state_machine_regs.line);
}
- putchar ('\n');
- break;
+ else switch (op_code)
+ {
+ case DW_LNS_extended_op:
+ data += process_extended_line_op (data, linfo.li_default_is_stmt, end);
+ break;
+
+ case DW_LNS_copy:
+ printf (_(" Copy\n"));
+ break;
+
+ case DW_LNS_advance_pc:
+ uladv = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ if (linfo.li_max_ops_per_insn == 1)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ printf (_(" Advance PC by %s to 0x%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", 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 %s to 0x%s[%d]\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ state_machine_regs.op_index);
+ }
+ break;
+
+ case DW_LNS_advance_line:
+ adv = read_sleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ state_machine_regs.line += adv;
+ printf (_(" Advance Line by %s to %d\n"),
+ dwarf_vmatoa ("d", adv),
+ state_machine_regs.line);
+ break;
+
+ case DW_LNS_set_file:
+ adv = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ printf (_(" Set File Name to entry %s in the File Name Table\n"),
+ dwarf_vmatoa ("d", adv));
+ state_machine_regs.file = adv;
+ break;
+
+ case DW_LNS_set_column:
+ uladv = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ printf (_(" Set column to %s\n"),
+ dwarf_vmatoa ("u", uladv));
+ state_machine_regs.column = uladv;
+ break;
+
+ case DW_LNS_negate_stmt:
+ adv = state_machine_regs.is_stmt;
+ adv = ! adv;
+ printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
+ state_machine_regs.is_stmt = adv;
+ break;
+
+ case DW_LNS_set_basic_block:
+ printf (_(" Set basic block\n"));
+ 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)
+ {
+ uladv *= linfo.li_min_insn_length;
+ state_machine_regs.address += uladv;
+ printf (_(" Advance PC by constant %s to 0x%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", 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 %s to 0x%s[%d]\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ state_machine_regs.op_index);
+ }
+ break;
+
+ case DW_LNS_fixed_advance_pc:
+ SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
+ state_machine_regs.address += uladv;
+ state_machine_regs.op_index = 0;
+ printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
+ dwarf_vmatoa ("u", uladv),
+ dwarf_vmatoa ("x", state_machine_regs.address));
+ break;
+
+ case DW_LNS_set_prologue_end:
+ printf (_(" Set prologue_end to true\n"));
+ break;
+
+ case DW_LNS_set_epilogue_begin:
+ printf (_(" Set epilogue_begin to true\n"));
+ break;
+
+ case DW_LNS_set_isa:
+ uladv = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ if (standard_opcodes != NULL)
+ for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ {
+ printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
+ &bytes_read, end)),
+ i == 1 ? "" : ", ");
+ data += bytes_read;
+ }
+ putchar ('\n');
+ break;
+ }
}
+ putchar ('\n');
}
- putchar ('\n');
}
return 1;
unsigned char *data,
unsigned char *end)
{
+ static DWARF2_Internal_LineInfo saved_linfo;
+
printf (_("Decoded dump of debug contents of section %s:\n\n"),
section->name);
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 int n_files = 0;
unsigned char **directory_table = NULL;
+ unsigned int n_directories = 0;
- hdrptr = data;
-
- /* Extract information from the Line Number Program Header.
- (section 6.2.4 in the Dwarf3 doc). */
-
- /* Get the length of this CU's line number information block. */
- linfo.li_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (linfo.li_length == 0xffffffff)
+ if (const_strneq (section->name, ".debug_line.")
+ /* Note: the following does not apply to .debug_line.dwo sections.
+ These are full debug_line sections. */
+ && strcmp (section->name, ".debug_line.dwo") != 0)
{
- /* This section is 64-bit DWARF 3. */
- linfo.li_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
+ /* See comment in display_debug_lines_raw(). */
+ end_of_sequence = end;
+ standard_opcodes = NULL;
+ linfo = saved_linfo;
+ reset_state_machine (linfo.li_default_is_stmt);
}
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;
- }
+ unsigned char *hdrptr;
- 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)
- {
- 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"));
+ if ((hdrptr = read_debug_line_header (section, data, end, & linfo,
+ & end_of_sequence)) == NULL)
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;
+ reset_state_machine (linfo.li_default_is_stmt);
- /* Find the end of this CU's Line Number Information Block. */
- end_of_sequence = data + linfo.li_length + initial_length_size;
+ /* Save a pointer to the contents of the Opcodes table. */
+ standard_opcodes = hdrptr;
- reset_state_machine (linfo.li_default_is_stmt);
+ /* Traverse the Directory table just to count entries. */
+ data = standard_opcodes + linfo.li_opcode_base - 1;
+ if (*data != 0)
+ {
+ unsigned char *ptr_directory_table = data;
- /* Save a pointer to the contents of the Opcodes table. */
- standard_opcodes = hdrptr;
+ while (*data != 0)
+ {
+ data += strnlen ((char *) data, end - data) + 1;
+ n_directories++;
+ }
- /* 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;
+ /* Go through the directory table again to save the directories. */
+ directory_table = (unsigned char **)
+ xmalloc (n_directories * sizeof (unsigned char *));
- while (*data != 0)
- {
- data += strlen ((char *) data) + 1;
- n_directories++;
+ i = 0;
+ while (*ptr_directory_table != 0)
+ {
+ directory_table[i] = ptr_directory_table;
+ ptr_directory_table += strnlen ((char *) ptr_directory_table,
+ ptr_directory_table - end) + 1;
+ i++;
+ }
}
+ /* Skip the NUL at the end of the table. */
+ data++;
- /* Go through the directory table again to save the directories. */
- directory_table = (unsigned char **)
- xmalloc (n_directories * sizeof (unsigned char *));
+ /* Traverse the File Name table just to count the entries. */
+ if (*data != 0)
+ {
+ unsigned char *ptr_file_name_table = data;
- 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++;
+ while (*data != 0)
+ {
+ unsigned int bytes_read;
- /* 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;
+ /* Skip Name, directory index, last modification time and length
+ of file. */
+ data += strnlen ((char *) data, end - data) + 1;
+ read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
- while (*data != 0)
- {
- unsigned int bytes_read;
+ n_files++;
+ }
- /* 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));
- /* 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 += strnlen ((char *) ptr_file_name_table,
+ end - ptr_file_name_table) + 1;
+
+ /* We are not interested in directory, time or size. */
+ file_table[i].directory_index = read_uleb128 (ptr_file_name_table,
+ & bytes_read, end);
+ ptr_file_name_table += bytes_read;
+ file_table[i].modification_date = read_uleb128 (ptr_file_name_table,
+ & bytes_read, end);
+ ptr_file_name_table += bytes_read;
+ file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end);
+ ptr_file_name_table += bytes_read;
+ i++;
+ }
+ i = 0;
- 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
+ {
+ unsigned int ix = file_table[0].directory_index;
+ const char *directory = ix ? (char *)directory_table[ix - 1] : ".";
- /* 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);
+ if (do_wide || strlen (directory) < 76)
+ printf (_("CU: %s/%s:\n"), directory, file_table[0].name);
+ else
+ printf ("%s:\n", file_table[0].name);
- printf (_("File name Line number Starting address\n"));
- }
- }
+ printf (_("File name Line number Starting address\n"));
+ }
+ }
+
+ /* Skip the NUL at the end of the table. */
+ data++;
- /* Skip the NUL at the end of the table. */
- data++;
+ saved_linfo = linfo;
+ }
/* This loop iterates through the Dwarf Line Number Program. */
while (data < end_of_sequence)
state_machine_regs.address
+= ((state_machine_regs.op_index + uladv)
/ linfo.li_max_ops_per_insn)
- * linfo.li_min_insn_length;
+ * linfo.li_min_insn_length;
state_machine_regs.op_index
= (state_machine_regs.op_index + uladv)
- % linfo.li_max_ops_per_insn;
+ % linfo.li_max_ops_per_insn;
}
adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
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_sleb128 (data, & bytes_read);
- 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%s%s", dwarf_vmatoa ("x", read_leb128 (data,
- &bytes_read, 0)),
- i == 1 ? "" : ", ");
- data += bytes_read;
- }
- putchar ('\n');
- break;
- }
+ {
+ 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_uleb128 (op_code_data, &bytes_read,
+ end_of_sequence);
+ 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:
+ SAFE_BYTE_GET_AND_INC (state_machine_regs.address,
+ op_code_data,
+ ext_op_code_len - bytes_read - 1,
+ end);
+ state_machine_regs.op_index = 0;
+ break;
+ case DW_LNE_define_file:
+ {
+ file_table = (File_Entry *) xrealloc
+ (file_table, (n_files + 1) * sizeof (File_Entry));
+
+ ++state_machine_regs.last_file_entry;
+ /* Source file name. */
+ file_table[n_files].name = op_code_data;
+ op_code_data += strlen ((char *) op_code_data) + 1;
+ /* Directory index. */
+ file_table[n_files].directory_index =
+ read_uleb128 (op_code_data, & bytes_read,
+ end_of_sequence);
+ op_code_data += bytes_read;
+ /* Last modification time. */
+ file_table[n_files].modification_date =
+ read_uleb128 (op_code_data, & bytes_read,
+ end_of_sequence);
+ op_code_data += bytes_read;
+ /* File length. */
+ file_table[n_files].length =
+ read_uleb128 (op_code_data, & bytes_read,
+ end_of_sequence);
+
+ n_files++;
+ break;
+ }
+ case DW_LNE_set_discriminator:
+ case DW_LNE_HP_set_sequence:
+ /* Simply ignored. */
+ break;
+
+ default:
+ printf (_("UNKNOWN (%u): length %d\n"),
+ ext_op_code, 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_uleb128 (data, & bytes_read, end);
+ 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_sleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ state_machine_regs.line += adv;
+ break;
+
+ case DW_LNS_set_file:
+ adv = read_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ state_machine_regs.file = adv;
+
+ if (file_table == NULL)
+ printf (_("\n [Use file table entry %d]\n"), state_machine_regs.file - 1);
+ else 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 if (directory_table == NULL)
+ printf (_("\n [Use directory table entry %d]\n"),
+ file_table[state_machine_regs.file - 1].directory_index - 1);
+ 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_uleb128 (data, & bytes_read, end);
+ 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:
+ SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
+ 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_uleb128 (data, & bytes_read, end);
+ data += bytes_read;
+ printf (_(" Set ISA to %lu\n"), uladv);
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ if (standard_opcodes != NULL)
+ for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ {
+ printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
+ &bytes_read, end)),
+ 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. */
|| (op_code == DW_LNS_copy))
{
const unsigned int MAX_FILENAME_LENGTH = 35;
- char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
+ char *fileName;
char *newFileName = NULL;
- size_t fileNameLength = strlen (fileName);
+ size_t fileNameLength;
+
+ if (file_table)
+ fileName = (char *) file_table[state_machine_regs.file - 1].name;
+ else
+ fileName = "<unknown>";
+
+ fileNameLength = strlen (fileName);
if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
{
free (newFileName);
}
}
- free (file_table);
- file_table = NULL;
- free (directory_table);
- directory_table = NULL;
+
+ if (file_table)
+ {
+ free (file_table);
+ file_table = NULL;
+ n_files = 0;
+ }
+
+ if (directory_table)
+ {
+ free (directory_table);
+ directory_table = NULL;
+ n_directories = 0;
+ }
+
putchar ('\n');
}
data = start;
- names.pn_length = byte_get (data, 4);
- data += 4;
+ SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end);
if (names.pn_length == 0xffffffff)
{
- names.pn_length = byte_get (data, 8);
- data += 8;
+ SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end);
offset_size = 8;
initial_length_size = 12;
}
initial_length_size = 4;
}
- names.pn_version = byte_get (data, 2);
- data += 2;
-
- names.pn_offset = byte_get (data, offset_size);
- data += offset_size;
+ SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end);
+ SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end);
if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
&& num_debug_info_entries > 0
warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
(unsigned long) names.pn_offset, section->name);
- names.pn_size = byte_get (data, offset_size);
- data += offset_size;
+ SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end);
start += names.pn_length + initial_length_size;
do
{
- offset = byte_get (data, offset_size);
+ SAFE_BYTE_GET (offset, data, offset_size, end);
if (offset != 0)
{
data += offset_size;
printf (" %-6lx\t%s\n", offset, data);
- data += strlen ((char *) data) + 1;
+ data += strnlen ((char *) data, end - data) + 1;
}
}
while (offset != 0);
while (curr < end)
{
unsigned int lineno;
- const char *string;
+ const unsigned char *string;
op = (enum dwarf_macinfo_record_type) *curr;
curr++;
{
unsigned int filenum;
- lineno = read_leb128 (curr, & bytes_read, 0);
+ lineno = read_uleb128 (curr, & bytes_read, end);
curr += bytes_read;
- filenum = read_leb128 (curr, & bytes_read, 0);
+ filenum = read_uleb128 (curr, & bytes_read, end);
curr += bytes_read;
printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
break;
case DW_MACINFO_define:
- lineno = read_leb128 (curr, & bytes_read, 0);
+ lineno = read_uleb128 (curr, & bytes_read, end);
curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
lineno, string);
break;
case DW_MACINFO_undef:
- lineno = read_leb128 (curr, & bytes_read, 0);
+ lineno = read_uleb128 (curr, & bytes_read, end);
curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
lineno, string);
break;
{
unsigned int constant;
- constant = read_leb128 (curr, & bytes_read, 0);
+ constant = read_uleb128 (curr, & bytes_read, end);
curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
constant, string);
}
return 1;
}
+/* Given LINE_OFFSET into the .debug_line section, attempt to return
+ filename and dirname corresponding to file name table entry with index
+ FILEIDX. Return NULL on failure. */
+
+static unsigned char *
+get_line_filename_and_dirname (dwarf_vma line_offset,
+ dwarf_vma fileidx,
+ unsigned char **dir_name)
+{
+ struct dwarf_section *section = &debug_displays [line].section;
+ unsigned char *hdrptr, *dirtable, *file_name;
+ unsigned int offset_size, initial_length_size;
+ unsigned int version, opcode_base, bytes_read;
+ dwarf_vma length, diridx;
+ const unsigned char * end;
+
+ *dir_name = NULL;
+ if (section->start == NULL
+ || line_offset >= section->size
+ || fileidx == 0)
+ return NULL;
+
+ hdrptr = section->start + line_offset;
+ end = section->start + section->size;
+
+ SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end);
+ if (length == 0xffffffff)
+ {
+ /* This section is 64-bit DWARF 3. */
+ SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end);
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+ if (length + initial_length_size > section->size)
+ return NULL;
+
+ SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end);
+ if (version != 2 && version != 3 && version != 4)
+ return NULL;
+ hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */
+ if (version >= 4)
+ hdrptr++; /* Skip max_ops_per_insn. */
+ hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */
+
+ SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end);
+ if (opcode_base == 0)
+ return NULL;
+
+ hdrptr += opcode_base - 1;
+ dirtable = hdrptr;
+ /* Skip over dirname table. */
+ while (*hdrptr != '\0')
+ hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
+ hdrptr++; /* Skip the NUL at the end of the table. */
+ /* Now skip over preceding filename table entries. */
+ for (; *hdrptr != '\0' && fileidx > 1; fileidx--)
+ {
+ hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
+ read_uleb128 (hdrptr, &bytes_read, end);
+ hdrptr += bytes_read;
+ read_uleb128 (hdrptr, &bytes_read, end);
+ hdrptr += bytes_read;
+ read_uleb128 (hdrptr, &bytes_read, end);
+ hdrptr += bytes_read;
+ }
+ if (hdrptr == end || *hdrptr == '\0')
+ return NULL;
+ file_name = hdrptr;
+ hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
+ diridx = read_uleb128 (hdrptr, &bytes_read, end);
+ if (diridx == 0)
+ return file_name;
+ for (; *dirtable != '\0' && diridx > 1; diridx--)
+ dirtable += strnlen ((char *) dirtable, end - dirtable) + 1;
+ if (*dirtable == '\0')
+ return NULL;
+ *dir_name = dirtable;
+ return file_name;
+}
+
+static int
+display_debug_macro (struct dwarf_section *section,
+ void *file)
+{
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
+ unsigned char *curr = start;
+ unsigned char *extended_op_buf[256];
+ unsigned int bytes_read;
+
+ load_debug_section (str, file);
+ load_debug_section (line, file);
+
+ printf (_("Contents of the %s section:\n\n"), section->name);
+
+ while (curr < end)
+ {
+ unsigned int lineno, version, flags;
+ unsigned int offset_size = 4;
+ const unsigned char *string;
+ dwarf_vma line_offset = 0, sec_offset = curr - start, offset;
+ unsigned char **extended_ops = NULL;
+
+ SAFE_BYTE_GET_AND_INC (version, curr, 2, end);
+ if (version != 4)
+ {
+ error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"),
+ section->name);
+ return 0;
+ }
+
+ SAFE_BYTE_GET_AND_INC (flags, curr, 1, end);
+ if (flags & 1)
+ offset_size = 8;
+ printf (_(" Offset: 0x%lx\n"),
+ (unsigned long) sec_offset);
+ printf (_(" Version: %d\n"), version);
+ printf (_(" Offset size: %d\n"), offset_size);
+ if (flags & 2)
+ {
+ SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end);
+ printf (_(" Offset into .debug_line: 0x%lx\n"),
+ (unsigned long) line_offset);
+ }
+ if (flags & 4)
+ {
+ unsigned int i, count, op;
+ dwarf_vma nargs, n;
+
+ SAFE_BYTE_GET_AND_INC (count, curr, 1, end);
+
+ memset (extended_op_buf, 0, sizeof (extended_op_buf));
+ extended_ops = extended_op_buf;
+ if (count)
+ {
+ printf (_(" Extension opcode arguments:\n"));
+ for (i = 0; i < count; i++)
+ {
+ SAFE_BYTE_GET_AND_INC (op, curr, 1, end);
+ extended_ops[op] = curr;
+ nargs = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ if (nargs == 0)
+ printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op);
+ else
+ {
+ printf (_(" DW_MACRO_GNU_%02x arguments: "), op);
+ for (n = 0; n < nargs; n++)
+ {
+ unsigned int form;
+
+ SAFE_BYTE_GET_AND_INC (form, curr, 1, end);
+ printf ("%s%s", get_FORM_name (form),
+ n == nargs - 1 ? "\n" : ", ");
+ switch (form)
+ {
+ case DW_FORM_data1:
+ case DW_FORM_data2:
+ case DW_FORM_data4:
+ case DW_FORM_data8:
+ case DW_FORM_sdata:
+ case DW_FORM_udata:
+ case DW_FORM_block:
+ case DW_FORM_block1:
+ case DW_FORM_block2:
+ case DW_FORM_block4:
+ case DW_FORM_flag:
+ case DW_FORM_string:
+ case DW_FORM_strp:
+ case DW_FORM_sec_offset:
+ break;
+ default:
+ error (_("Invalid extension opcode form %s\n"),
+ get_FORM_name (form));
+ return 0;
+ }
+ }
+ }
+ }
+ }
+ }
+ printf ("\n");
+
+ while (1)
+ {
+ unsigned int op;
+
+ if (curr >= end)
+ {
+ error (_(".debug_macro section not zero terminated\n"));
+ return 0;
+ }
+
+ SAFE_BYTE_GET_AND_INC (op, curr, 1, end);
+ if (op == 0)
+ break;
+
+ switch (op)
+ {
+ case DW_MACRO_GNU_start_file:
+ {
+ unsigned int filenum;
+ unsigned char *file_name = NULL, *dir_name = NULL;
+
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ filenum = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+
+ if ((flags & 2) == 0)
+ error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n"));
+ else
+ file_name
+ = get_line_filename_and_dirname (line_offset, filenum,
+ &dir_name);
+ if (file_name == NULL)
+ printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"),
+ lineno, filenum);
+ else
+ printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
+ lineno, filenum,
+ dir_name != NULL ? (const char *) dir_name : "",
+ dir_name != NULL ? "/" : "", file_name);
+ }
+ break;
+
+ case DW_MACRO_GNU_end_file:
+ printf (_(" DW_MACRO_GNU_end_file\n"));
+ break;
+
+ case DW_MACRO_GNU_define:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
+ printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACRO_GNU_undef:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ string = curr;
+ curr += strnlen ((char *) string, end - string) + 1;
+ printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACRO_GNU_define_indirect:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ string = fetch_indirect_string (offset);
+ printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACRO_GNU_undef_indirect:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ string = fetch_indirect_string (offset);
+ printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACRO_GNU_transparent_include:
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"),
+ (unsigned long) offset);
+ break;
+
+ case DW_MACRO_GNU_define_indirect_alt:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"),
+ lineno, (unsigned long) offset);
+ break;
+
+ case DW_MACRO_GNU_undef_indirect_alt:
+ lineno = read_uleb128 (curr, &bytes_read, end);
+ curr += bytes_read;
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"),
+ lineno, (unsigned long) offset);
+ break;
+
+ case DW_MACRO_GNU_transparent_include_alt:
+ SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
+ printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"),
+ (unsigned long) offset);
+ break;
+
+ default:
+ if (extended_ops == NULL || extended_ops[op] == NULL)
+ {
+ error (_(" Unknown macro opcode %02x seen\n"), op);
+ return 0;
+ }
+ else
+ {
+ /* Skip over unhandled opcodes. */
+ dwarf_vma nargs, n;
+ unsigned char *desc = extended_ops[op];
+ nargs = read_uleb128 (desc, &bytes_read, end);
+ desc += bytes_read;
+ if (nargs == 0)
+ {
+ printf (_(" DW_MACRO_GNU_%02x\n"), op);
+ break;
+ }
+ printf (_(" DW_MACRO_GNU_%02x -"), op);
+ for (n = 0; n < nargs; n++)
+ {
+ int val;
+
+ SAFE_BYTE_GET_AND_INC (val, desc, 1, end);
+ curr
+ = read_and_display_attr_value (0, val,
+ curr, end, 0, 0, offset_size,
+ version, NULL, 0, NULL,
+ NULL);
+ if (n != nargs - 1)
+ printf (",");
+ }
+ printf ("\n");
+ }
+ break;
+ }
+ }
+
+ printf ("\n");
+ }
+
+ return 1;
+}
+
static int
display_debug_abbrev (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
do
{
+ unsigned char *last;
+
free_abbrevs ();
+ last = start;
start = process_abbrev_section (start, end);
if (first_abbrev == NULL)
continue;
- printf (_(" Number TAG\n"));
+ printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start));
for (entry = first_abbrev; entry; entry = entry->next)
{
return 1;
}
+/* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
+
+static void
+display_loc_list (struct dwarf_section *section,
+ unsigned char **start_ptr,
+ int debug_info_entry,
+ unsigned long offset,
+ unsigned long base_address,
+ int has_frame_base)
+{
+ unsigned char *start = *start_ptr;
+ unsigned char *section_end = section->start + section->size;
+ unsigned long cu_offset = debug_information [debug_info_entry].cu_offset;
+ unsigned int pointer_size = debug_information [debug_info_entry].pointer_size;
+ unsigned int offset_size = debug_information [debug_info_entry].offset_size;
+ int dwarf_version = debug_information [debug_info_entry].dwarf_version;
+
+ dwarf_vma begin;
+ dwarf_vma end;
+ unsigned short length;
+ int need_frame_base;
+
+ while (1)
+ {
+ if (start + 2 * pointer_size > section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ printf (" %8.8lx ", offset + (start - *start_ptr));
+
+ /* 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. */
+ SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
+ SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end);
+
+ if (begin == 0 && end == 0)
+ {
+ printf (_("<End of list>\n"));
+ break;
+ }
+
+ /* Check base address specifiers. */
+ if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
+ {
+ base_address = end;
+ print_dwarf_vma (begin, pointer_size);
+ print_dwarf_vma (end, pointer_size);
+ printf (_("(base address)\n"));
+ continue;
+ }
+
+ if (start + 2 > section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ SAFE_BYTE_GET_AND_INC (length, start, 2, section_end);
+
+ if (start + length > section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ 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, section);
+ putchar (')');
+
+ if (need_frame_base && !has_frame_base)
+ printf (_(" [without DW_AT_frame_base]"));
+
+ if (begin == end)
+ fputs (_(" (start == end)"), stdout);
+ else if (begin > end)
+ fputs (_(" (start > end)"), stdout);
+
+ putchar ('\n');
+
+ start += length;
+ }
+
+ *start_ptr = start;
+}
+
+/* Print a .debug_addr table index in decimal, surrounded by square brackets,
+ right-adjusted in a field of length LEN, and followed by a space. */
+
+static void
+print_addr_index (unsigned int idx, unsigned int len)
+{
+ static char buf[15];
+ snprintf (buf, sizeof (buf), "[%d]", idx);
+ printf ("%*s ", len, buf);
+}
+
+/* Display a location list from a .dwo section. It uses address indexes rather
+ than embedded addresses. This code closely follows display_loc_list, but the
+ two are sufficiently different that combining things is very ugly. */
+
+static void
+display_loc_list_dwo (struct dwarf_section *section,
+ unsigned char **start_ptr,
+ int debug_info_entry,
+ unsigned long offset,
+ int has_frame_base)
+{
+ unsigned char *start = *start_ptr;
+ unsigned char *section_end = section->start + section->size;
+ unsigned long cu_offset = debug_information [debug_info_entry].cu_offset;
+ unsigned int pointer_size = debug_information [debug_info_entry].pointer_size;
+ unsigned int offset_size = debug_information [debug_info_entry].offset_size;
+ int dwarf_version = debug_information [debug_info_entry].dwarf_version;
+ int entry_type;
+ unsigned short length;
+ int need_frame_base;
+ unsigned int idx;
+ unsigned int bytes_read;
+
+ while (1)
+ {
+ printf (" %8.8lx ", offset + (start - *start_ptr));
+
+ if (start >= section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end);
+ switch (entry_type)
+ {
+ case 0: /* A terminating entry. */
+ *start_ptr = start;
+ printf (_("<End of list>\n"));
+ return;
+ case 1: /* A base-address entry. */
+ idx = read_uleb128 (start, &bytes_read, section_end);
+ start += bytes_read;
+ print_addr_index (idx, 8);
+ printf (" ");
+ printf (_("(base address selection entry)\n"));
+ continue;
+ case 2: /* A start/end entry. */
+ idx = read_uleb128 (start, &bytes_read, section_end);
+ start += bytes_read;
+ print_addr_index (idx, 8);
+ idx = read_uleb128 (start, &bytes_read, section_end);
+ start += bytes_read;
+ print_addr_index (idx, 8);
+ break;
+ case 3: /* A start/length entry. */
+ idx = read_uleb128 (start, &bytes_read, section_end);
+ start += bytes_read;
+ print_addr_index (idx, 8);
+ SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
+ printf ("%08x ", idx);
+ break;
+ case 4: /* An offset pair entry. */
+ SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
+ printf ("%08x ", idx);
+ SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
+ printf ("%08x ", idx);
+ break;
+ default:
+ warn (_("Unknown location list entry type 0x%x.\n"), entry_type);
+ *start_ptr = start;
+ return;
+ }
+
+ if (start + 2 > section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ SAFE_BYTE_GET_AND_INC (length, start, 2, section_end);
+ if (start + length > section_end)
+ {
+ warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
+ offset);
+ break;
+ }
+
+ putchar ('(');
+ need_frame_base = decode_location_expression (start,
+ pointer_size,
+ offset_size,
+ dwarf_version,
+ length,
+ cu_offset, section);
+ putchar (')');
+
+ if (need_frame_base && !has_frame_base)
+ printf (_(" [without DW_AT_frame_base]"));
+
+ putchar ('\n');
+
+ start += length;
+ }
+
+ *start_ptr = start;
+}
+
+/* Sort array of indexes in ascending order of loc_offsets[idx]. */
+
+static dwarf_vma *loc_offsets;
+
+static int
+loc_offsets_compar (const void *ap, const void *bp)
+{
+ dwarf_vma a = loc_offsets[*(const unsigned int *) ap];
+ dwarf_vma b = loc_offsets[*(const unsigned int *) bp];
+
+ return (a > b) - (b > a);
+}
+
static int
display_debug_loc (struct dwarf_section *section, void *file)
{
unsigned char *start = section->start;
- unsigned char *section_end;
unsigned long bytes;
unsigned char *section_begin = start;
unsigned int num_loc_list = 0;
unsigned int first = 0;
unsigned int i;
unsigned int j;
+ unsigned int k;
int seen_first_offset = 0;
- int use_debug_info = 1;
+ int locs_sorted = 1;
unsigned char *next;
+ unsigned int *array = NULL;
+ const char *suffix = strrchr (section->name, '.');
+ int is_dwo = 0;
+
+ if (suffix && strcmp (suffix, ".dwo") == 0)
+ is_dwo = 1;
bytes = section->size;
- section_end = start + bytes;
if (bytes == 0)
{
unsigned int num;
num = debug_information [i].num_loc_offsets;
- num_loc_list += num;
+ if (num > num_loc_list)
+ num_loc_list = num;
/* Check if we can use `debug_information' directly. */
- if (use_debug_info && num != 0)
+ if (locs_sorted && num != 0)
{
if (!seen_first_offset)
{
if (last_offset >
debug_information [i].loc_offsets [j])
{
- use_debug_info = 0;
+ locs_sorted = 0;
break;
}
last_offset = debug_information [i].loc_offsets [j];
}
}
- if (!use_debug_info)
- /* FIXME: Should we handle this case? */
- error (_("Location lists in .debug_info section aren't in ascending order!\n"));
-
if (!seen_first_offset)
error (_("No location lists in .debug_info section!\n"));
section->name,
dwarf_vmatoa ("x", debug_information [first].loc_offsets [0]));
+ if (!locs_sorted)
+ array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int));
printf (_("Contents of the %s section:\n\n"), section->name);
printf (_(" Offset Begin End Expression\n"));
seen_first_offset = 0;
for (i = first; i < num_debug_info_entries; i++)
{
- 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;
int has_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;
+ if (!locs_sorted)
+ {
+ for (k = 0; k < debug_information [i].num_loc_offsets; k++)
+ array[k] = k;
+ loc_offsets = debug_information [i].loc_offsets;
+ qsort (array, debug_information [i].num_loc_offsets,
+ sizeof (*array), loc_offsets_compar);
+ }
- for (j = 0; j < debug_information [i].num_loc_offsets; j++)
+ for (k = 0; k < debug_information [i].num_loc_offsets; k++)
{
+ j = locs_sorted ? k : array[k];
+ if (k
+ && debug_information [i].loc_offsets [locs_sorted
+ ? k - 1 : array [k - 1]]
+ == debug_information [i].loc_offsets [j])
+ continue;
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;
next = section_begin + offset;
base_address = debug_information [i].base_address;
- if (!seen_first_offset)
- seen_first_offset = 1;
- else
- {
- if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (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"),
- (unsigned long) (start - section_begin),
- (unsigned long) (next - section_begin));
- }
- start = next;
-
- if (offset >= bytes)
- {
- warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
- offset);
- continue;
- }
-
- while (1)
- {
- if (start + 2 * pointer_size > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- /* 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)
- {
- printf (_("<End of list>\n"));
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
- {
- base_address = end;
- print_dwarf_vma (begin, pointer_size);
- print_dwarf_vma (end, pointer_size);
- printf (_("(base address)\n"));
- continue;
- }
-
- if (start + 2 > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- length = byte_get (start, 2);
- start += 2;
-
- if (start + length > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- 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, section);
- putchar (')');
-
- if (need_frame_base && !has_frame_base)
- printf (_(" [without DW_AT_frame_base]"));
-
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
-
- putchar ('\n');
+ if (!seen_first_offset)
+ seen_first_offset = 1;
+ else
+ {
+ if (start < next)
+ warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
+ (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"),
+ (unsigned long) (start - section_begin),
+ (unsigned long) (next - section_begin));
+ }
+ start = next;
- start += length;
+ if (offset >= bytes)
+ {
+ warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
+ offset);
+ continue;
}
+
+ if (is_dwo)
+ display_loc_list_dwo (section, &start, i, offset, has_frame_base);
+ else
+ display_loc_list (section, &start, i, offset, base_address,
+ has_frame_base);
}
}
- if (start < section_end)
+ if (start < section->start + section->size)
warn (_("There are %ld unused bytes at the end of section %s\n"),
- (long) (section_end - start), section->name);
+ (long) (section->start + section->size - start), section->name);
putchar ('\n');
+ free (array);
return 1;
}
static int
display_debug_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, abbrev, 0, 0);
+ return process_debug_info (section, file, section->abbrev_sec, 0, 0);
}
static int
display_debug_types (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, abbrev, 0, 1);
+ return process_debug_info (section, file, section->abbrev_sec, 0, 1);
}
static int
display_trace_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, file, trace_abbrev, 0, 0);
+ return process_debug_info (section, file, section->abbrev_sec, 0, 0);
}
static int
hdrptr = start;
- arange.ar_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
+ SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end);
if (arange.ar_length == 0xffffffff)
{
- arange.ar_length = byte_get (hdrptr, 8);
- hdrptr += 8;
+ SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end);
offset_size = 8;
initial_length_size = 12;
}
initial_length_size = 4;
}
- arange.ar_version = byte_get (hdrptr, 2);
- hdrptr += 2;
-
- arange.ar_info_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
+ SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end);
+ SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end);
if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
&& num_debug_info_entries > 0
warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
(unsigned long) arange.ar_info_offset, section->name);
- arange.ar_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
-
- arange.ar_segment_size = byte_get (hdrptr, 1);
- hdrptr += 1;
+ SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end);
+ SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end);
if (arange.ar_version != 2 && arange.ar_version != 3)
{
address_size = arange.ar_pointer_size + arange.ar_segment_size;
+ if (address_size == 0)
+ {
+ error (_("Invalid address size in %s section!\n"),
+ section->name);
+ break;
+ }
+
/* The DWARF spec does not require that the address size be a power
of two, but we do. This will have to change if we ever encounter
an uneven architecture. */
while (addr_ranges + 2 * address_size <= start)
{
- address = byte_get (addr_ranges, address_size);
-
- addr_ranges += address_size;
-
- length = byte_get (addr_ranges, address_size);
-
- addr_ranges += address_size;
+ SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end);
+ SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end);
printf (" ");
print_dwarf_vma (address, address_size);
return 1;
}
+/* Comparison function for qsort. */
+static int
+comp_addr_base (const void * v0, const void * v1)
+{
+ debug_info * info0 = (debug_info *) v0;
+ debug_info * info1 = (debug_info *) v1;
+ return info0->addr_base - info1->addr_base;
+}
+
+/* Display the debug_addr section. */
+static int
+display_debug_addr (struct dwarf_section *section,
+ void *file)
+{
+ debug_info **debug_addr_info;
+ unsigned char *entry;
+ unsigned char *end;
+ unsigned int i;
+ unsigned int count;
+
+ if (section->size == 0)
+ {
+ printf (_("\nThe %s section is empty.\n"), section->name);
+ return 0;
+ }
+
+ 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;
+ }
+
+ printf (_("Contents of the %s section:\n\n"), section->name);
+
+ debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1)
+ * sizeof (debug_info *));
+
+ count = 0;
+ for (i = 0; i < num_debug_info_entries; i++)
+ {
+ if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE)
+ debug_addr_info [count++] = &debug_information [i];
+ }
+
+ /* Add a sentinel to make iteration convenient. */
+ debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info));
+ debug_addr_info [count]->addr_base = section->size;
+
+ qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base);
+ for (i = 0; i < count; i++)
+ {
+ unsigned int idx;
+ unsigned int address_size = debug_addr_info [i]->pointer_size;
+
+ printf (_(" For compilation unit at offset 0x%s:\n"),
+ dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset));
+
+ printf (_("\tIndex\tAddress\n"));
+ entry = section->start + debug_addr_info [i]->addr_base;
+ end = section->start + debug_addr_info [i + 1]->addr_base;
+ idx = 0;
+ while (entry < end)
+ {
+ dwarf_vma base = byte_get (entry, address_size);
+ printf (_("\t%d:\t"), idx);
+ print_dwarf_vma (base, address_size);
+ printf ("\n");
+ entry += address_size;
+ idx++;
+ }
+ }
+ printf ("\n");
+
+ free (debug_addr_info);
+ return 1;
+}
+
+/* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
+static int
+display_debug_str_offsets (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
+{
+ if (section->size == 0)
+ {
+ printf (_("\nThe %s section is empty.\n"), section->name);
+ return 0;
+ }
+ /* TODO: Dump the contents. This is made somewhat difficult by not knowing
+ what the offset size is for this section. */
+ return 1;
+}
+
/* Each debug_information[x].range_lists[y] gets this representation for
sorting purposes. */
void *file ATTRIBUTE_UNUSED)
{
unsigned char *start = section->start;
- unsigned long bytes;
+ unsigned char *last_start = start;
+ unsigned long bytes = section->size;
unsigned char *section_begin = start;
+ unsigned char *finish = start + bytes;
unsigned int num_range_list, i;
struct range_entry *range_entries, *range_entry_fill;
- bytes = section->size;
-
if (bytes == 0)
{
printf (_("\nThe %s section is empty.\n"), section->name);
num_range_list += debug_information [i].num_range_lists;
if (num_range_list == 0)
- error (_("No range lists in .debug_info section!\n"));
+ {
+ /* This can happen when the file was compiled with -gsplit-debug
+ which removes references to range lists from the primary .o file. */
+ printf (_("No range lists in .debug_info section.\n"));
+ return 1;
+ }
range_entries = (struct range_entry *)
xmalloc (sizeof (*range_entries) * num_range_list);
range_entry_compar);
/* DWARF sections under Mach-O have non-zero addresses. */
- if (range_entries[0].ranges_offset != section->address)
+ if (dwarf_check != 0 && range_entries[0].ranges_offset != section->address)
warn (_("Range lists in %s section start at 0x%lx\n"),
section->name, range_entries[0].ranges_offset);
next = section_begin + offset;
base_address = debug_info_p->base_address;
- if (i > 0)
+ if (dwarf_check != 0 && i > 0)
{
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);
+ {
+ if (next == last_start)
+ continue;
+ 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;
+ last_start = next;
- while (1)
+ while (start < finish)
{
dwarf_vma begin;
dwarf_vma end;
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;
+ SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
+ if (start >= finish)
+ break;
+ SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish);
printf (" %8.8lx ", offset);
case EM_X86_64:
case EM_L1OM:
+ case EM_K1OM:
init_dwarf_regnames_x86_64 ();
break;
printf ("\n");
}
-#define GET(N) byte_get (start, N); start += N
-#define LEB() read_leb128 (start, & length_return, 0); start += length_return
-#define SLEB() read_sleb128 (start, & length_return); start += length_return
+#define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end);
+#define LEB() read_uleb128 (start, & length_return, end); start += length_return
+#define SLEB() read_sleb128 (start, & length_return, end); start += length_return
static int
display_debug_frames (struct dwarf_section *section,
int initial_length_size;
saved_start = start;
- length = byte_get (start, 4); start += 4;
+ SAFE_BYTE_GET_AND_INC (length, start, 4, end);
if (length == 0)
{
printf ("\n%08lx ZERO terminator\n\n",
if (length == 0xffffffff)
{
- length = byte_get (start, 8);
- start += 8;
+ SAFE_BYTE_GET_AND_INC (length, start, 8, end);
offset_size = 8;
initial_length_size = 12;
}
length, (unsigned long)(saved_start - section_start));
block_end = end;
}
- cie_id = byte_get (start, offset_size); start += offset_size;
+
+ SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end);
if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
{
if (version >= 4)
{
- fc->ptr_size = GET (1);
- fc->segment_size = GET (1);
+ GET (fc->ptr_size, 1);
+ GET (fc->segment_size, 1);
eh_addr_size = fc->ptr_size;
}
else
fc->data_factor = SLEB ();
if (version == 1)
{
- fc->ra = GET (1);
+ GET (fc->ra, 1);
}
else
{
segment_selector = 0;
if (fc->segment_size)
{
- segment_selector = byte_get (start, fc->segment_size);
- start += fc->segment_size;
+ SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end);
}
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;
+ /* FIXME: It appears that sometimes the final pc_range value is
+ encoded in less than encoded_ptr_size bytes. See the x86_64
+ run of the "objcopy on compressed debug sections" test for an
+ example of this. */
+ SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end);
+
if (cie->augmentation[0] == 'z')
{
augmentation_data_len = LEB ();
{
fc->col_type[opa] = cie->col_type[opa];
fc->col_offset[opa] = cie->col_offset[opa];
+ if (do_debug_frames_interp
+ && fc->col_type[opa] == DW_CFA_unreferenced)
+ fc->col_type[opa] = DW_CFA_undefined;
}
break;
break;
case DW_CFA_advance_loc1:
- ofs = byte_get (start, 1); start += 1;
+ SAFE_BYTE_GET_AND_INC (ofs, start, 1, end);
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
break;
case DW_CFA_advance_loc2:
- ofs = byte_get (start, 2); start += 2;
+ SAFE_BYTE_GET_AND_INC (ofs, start, 2, end);
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
break;
case DW_CFA_advance_loc4:
- ofs = byte_get (start, 4); start += 4;
+ SAFE_BYTE_GET_AND_INC (ofs, start, 4, end);
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
break;
case DW_CFA_MIPS_advance_loc8:
- ofs = byte_get (start, 8); start += 8;
+ SAFE_BYTE_GET_AND_INC (ofs, start, 8, end);
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
else
/* Prior versions are obsolete, and future versions may not be
backwards compatible. */
- switch (version)
+ if (version < 3 || version > 8)
{
- case 3:
- warn (_("The address table data in version 3 may be wrong.\n"));
- break;
- case 4:
- break;
- default:
warn (_("Unsupported version %lu.\n"), (unsigned long) version);
return 0;
}
+ if (version < 4)
+ warn (_("The address table data in version 3 may be wrong.\n"));
+ if (version < 5)
+ warn (_("Version 4 does not support case insensitive lookups.\n"));
+ if (version < 6)
+ warn (_("Version 5 does not include inlined functions.\n"));
+ if (version < 7)
+ warn (_("Version 6 does not include symbol attributes.\n"));
+ /* Version 7 indices generated by Gold have bad type unit references,
+ PR binutils/15021. But we don't know if the index was generated by
+ Gold or not, so to avoid worrying users with gdb-generated indices
+ we say nothing for version 7 here. */
cu_list_offset = byte_get_little_endian (start + 4, 4);
tu_list_offset = byte_get_little_endian (start + 8, 4);
printf ("[%3u] %s:", i, constant_pool + name_offset);
num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4);
+ if (num_cus > 1)
+ printf ("\n");
for (j = 0; j < num_cus; ++j)
{
+ int is_static;
+ gdb_index_symbol_kind kind;
+
cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
+ is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu);
+ kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu);
+ cu = GDB_INDEX_CU_VALUE (cu);
/* Convert to TU number if it's for a type unit. */
- if (cu >= cu_list_elements)
- printf (" T%lu", (unsigned long) (cu - cu_list_elements));
+ if (cu >= cu_list_elements / 2)
+ printf ("%cT%lu", num_cus > 1 ? '\t' : ' ',
+ (unsigned long) (cu - cu_list_elements / 2));
+ else
+ printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu);
+
+ switch (kind)
+ {
+ case GDB_INDEX_SYMBOL_KIND_NONE:
+ printf (_(" [no symbol information]"));
+ break;
+ case GDB_INDEX_SYMBOL_KIND_TYPE:
+ printf (is_static
+ ? _(" [static type]")
+ : _(" [global type]"));
+ break;
+ case GDB_INDEX_SYMBOL_KIND_VARIABLE:
+ printf (is_static
+ ? _(" [static variable]")
+ : _(" [global variable]"));
+ break;
+ case GDB_INDEX_SYMBOL_KIND_FUNCTION:
+ printf (is_static
+ ? _(" [static function]")
+ : _(" [global function]"));
+ break;
+ case GDB_INDEX_SYMBOL_KIND_OTHER:
+ printf (is_static
+ ? _(" [static other]")
+ : _(" [global other]"));
+ break;
+ default:
+ printf (is_static
+ ? _(" [static unknown: %d]")
+ : _(" [global unknown: %d]"),
+ kind);
+ break;
+ }
+ if (num_cus > 1)
+ printf ("\n");
+ }
+ if (num_cus <= 1)
+ printf ("\n");
+ }
+ }
+
+ return 1;
+}
+
+/* Pre-allocate enough space for the CU/TU sets needed. */
+
+static void
+prealloc_cu_tu_list (unsigned int nshndx)
+{
+ if (shndx_pool == NULL)
+ {
+ shndx_pool_size = nshndx;
+ shndx_pool_used = 0;
+ shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size,
+ sizeof (unsigned int));
+ }
+ else
+ {
+ shndx_pool_size = shndx_pool_used + nshndx;
+ shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size,
+ sizeof (unsigned int));
+ }
+}
+
+static void
+add_shndx_to_cu_tu_entry (unsigned int shndx)
+{
+ if (shndx_pool_used >= shndx_pool_size)
+ {
+ error (_("Internal error: out of space in the shndx pool.\n"));
+ return;
+ }
+ shndx_pool [shndx_pool_used++] = shndx;
+}
+
+static void
+end_cu_tu_entry (void)
+{
+ if (shndx_pool_used >= shndx_pool_size)
+ {
+ error (_("Internal error: out of space in the shndx pool.\n"));
+ return;
+ }
+ shndx_pool [shndx_pool_used++] = 0;
+}
+
+/* Return the short name of a DWARF section given by a DW_SECT enumerator. */
+
+static const char *
+get_DW_SECT_short_name (unsigned int dw_sect)
+{
+ static char buf[16];
+
+ switch (dw_sect)
+ {
+ case DW_SECT_INFO:
+ return "info";
+ case DW_SECT_TYPES:
+ return "types";
+ case DW_SECT_ABBREV:
+ return "abbrev";
+ case DW_SECT_LINE:
+ return "line";
+ case DW_SECT_LOC:
+ return "loc";
+ case DW_SECT_STR_OFFSETS:
+ return "str_off";
+ case DW_SECT_MACINFO:
+ return "macinfo";
+ case DW_SECT_MACRO:
+ return "macro";
+ default:
+ break;
+ }
+
+ snprintf (buf, sizeof (buf), "%d", dw_sect);
+ return buf;
+}
+
+/* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
+ These sections are extensions for Fission.
+ See http://gcc.gnu.org/wiki/DebugFissionDWP. */
+
+static int
+process_cu_tu_index (struct dwarf_section *section, int do_display)
+{
+ unsigned char *phdr = section->start;
+ unsigned char *limit = phdr + section->size;
+ unsigned char *phash;
+ unsigned char *pindex;
+ unsigned char *ppool;
+ unsigned int version;
+ unsigned int ncols = 0;
+ unsigned int nused;
+ unsigned int nslots;
+ unsigned int i;
+ unsigned int j;
+ dwarf_vma signature_high;
+ dwarf_vma signature_low;
+ char buf[64];
+
+ version = byte_get (phdr, 4);
+ if (version >= 2)
+ ncols = byte_get (phdr + 4, 4);
+ nused = byte_get (phdr + 8, 4);
+ nslots = byte_get (phdr + 12, 4);
+ phash = phdr + 16;
+ pindex = phash + nslots * 8;
+ ppool = pindex + nslots * 4;
+
+ if (do_display)
+ {
+ printf (_("Contents of the %s section:\n\n"), section->name);
+ printf (_(" Version: %d\n"), version);
+ if (version >= 2)
+ printf (_(" Number of columns: %d\n"), ncols);
+ printf (_(" Number of used entries: %d\n"), nused);
+ printf (_(" Number of slots: %d\n\n"), nslots);
+ }
+
+ if (ppool > limit)
+ {
+ warn (_("Section %s too small for %d hash table entries\n"),
+ section->name, nslots);
+ return 0;
+ }
+
+ if (version == 1)
+ {
+ if (!do_display)
+ prealloc_cu_tu_list ((limit - ppool) / 4);
+ for (i = 0; i < nslots; i++)
+ {
+ unsigned char *shndx_list;
+ unsigned int shndx;
+
+ byte_get_64 (phash, &signature_high, &signature_low);
+ if (signature_high != 0 || signature_low != 0)
+ {
+ j = byte_get (pindex, 4);
+ shndx_list = ppool + j * 4;
+ if (do_display)
+ printf (_(" [%3d] Signature: 0x%s Sections: "),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ for (;;)
+ {
+ if (shndx_list >= limit)
+ {
+ warn (_("Section %s too small for shndx pool\n"),
+ section->name);
+ return 0;
+ }
+ shndx = byte_get (shndx_list, 4);
+ if (shndx == 0)
+ break;
+ if (do_display)
+ printf (" %d", shndx);
+ else
+ add_shndx_to_cu_tu_entry (shndx);
+ shndx_list += 4;
+ }
+ if (do_display)
+ printf ("\n");
else
- printf (" %lu", (unsigned long) cu);
+ end_cu_tu_entry ();
+ }
+ phash += 8;
+ pindex += 4;
+ }
+ }
+ else if (version == 2)
+ {
+ unsigned int val;
+ unsigned int dw_sect;
+ unsigned char *ph = phash;
+ unsigned char *pi = pindex;
+ unsigned char *poffsets = ppool + ncols * 4;
+ unsigned char *psizes = poffsets + nused * ncols * 4;
+ unsigned char *pend = psizes + nused * ncols * 4;
+ bfd_boolean is_tu_index;
+ struct cu_tu_set *this_set = NULL;
+ unsigned int row;
+ unsigned char *prow;
+
+ is_tu_index = strcmp (section->name, ".debug_tu_index") == 0;
+
+ if (pend > limit)
+ {
+ warn (_("Section %s too small for offset and size tables\n"),
+ section->name);
+ return 0;
+ }
+
+ if (do_display)
+ {
+ printf (_(" Offset table\n"));
+ printf (" slot %-16s ",
+ is_tu_index ? _("signature") : _("dwo_id"));
+ }
+ else
+ {
+ if (is_tu_index)
+ {
+ tu_count = nused;
+ tu_sets = xcmalloc (nused, sizeof (struct cu_tu_set));
+ this_set = tu_sets;
+ }
+ else
+ {
+ cu_count = nused;
+ cu_sets = xcmalloc (nused, sizeof (struct cu_tu_set));
+ this_set = cu_sets;
+ }
+ }
+ if (do_display)
+ {
+ for (j = 0; j < ncols; j++)
+ {
+ dw_sect = byte_get (ppool + j * 4, 4);
+ printf (" %8s", get_DW_SECT_short_name (dw_sect));
+ }
+ printf ("\n");
+ }
+ for (i = 0; i < nslots; i++)
+ {
+ byte_get_64 (ph, &signature_high, &signature_low);
+ row = byte_get (pi, 4);
+ if (row != 0)
+ {
+ if (!do_display)
+ memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t));
+ prow = poffsets + (row - 1) * ncols * 4;
+ if (do_display)
+ printf (_(" [%3d] 0x%s"),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ for (j = 0; j < ncols; j++)
+ {
+ val = byte_get (prow + j * 4, 4);
+ if (do_display)
+ printf (" %8d", val);
+ else
+ {
+ dw_sect = byte_get (ppool + j * 4, 4);
+ this_set [row - 1].section_offsets [dw_sect] = val;
+ }
+ }
+ if (do_display)
+ printf ("\n");
}
+ ph += 8;
+ pi += 4;
+ }
+
+ ph = phash;
+ pi = pindex;
+ if (do_display)
+ {
printf ("\n");
+ printf (_(" Size table\n"));
+ printf (" slot %-16s ",
+ is_tu_index ? _("signature") : _("dwo_id"));
+ }
+ for (j = 0; j < ncols; j++)
+ {
+ val = byte_get (ppool + j * 4, 4);
+ if (do_display)
+ printf (" %8s", get_DW_SECT_short_name (val));
+ }
+ if (do_display)
+ printf ("\n");
+ for (i = 0; i < nslots; i++)
+ {
+ byte_get_64 (ph, &signature_high, &signature_low);
+ row = byte_get (pi, 4);
+ if (row != 0)
+ {
+ prow = psizes + (row - 1) * ncols * 4;
+ if (do_display)
+ printf (_(" [%3d] 0x%s"),
+ i, dwarf_vmatoa64 (signature_high, signature_low,
+ buf, sizeof (buf)));
+ for (j = 0; j < ncols; j++)
+ {
+ val = byte_get (prow + j * 4, 4);
+ if (do_display)
+ printf (" %8d", val);
+ else
+ {
+ dw_sect = byte_get (ppool + j * 4, 4);
+ this_set [row - 1].section_sizes [dw_sect] = val;
+ }
+ }
+ if (do_display)
+ printf ("\n");
+ }
+ ph += 8;
+ pi += 4;
}
}
+ else if (do_display)
+ printf (_(" Unsupported version\n"));
+
+ if (do_display)
+ printf ("\n");
return 1;
}
+/* Load the CU and TU indexes if present. This will build a list of
+ section sets that we can use to associate a .debug_info.dwo section
+ with its associated .debug_abbrev.dwo section in a .dwp file. */
+
+static void
+load_cu_tu_indexes (void *file)
+{
+ /* If we have already loaded (or tried to load) the CU and TU indexes
+ then do not bother to repeat the task. */
+ if (cu_tu_indexes_read)
+ return;
+
+ if (load_debug_section (dwp_cu_index, file))
+ process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0);
+
+ if (load_debug_section (dwp_tu_index, file))
+ process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0);
+
+ cu_tu_indexes_read = 1;
+}
+
+/* Find the set of sections that includes section SHNDX. */
+
+unsigned int *
+find_cu_tu_set (void *file, unsigned int shndx)
+{
+ unsigned int i;
+
+ load_cu_tu_indexes (file);
+
+ /* Find SHNDX in the shndx pool. */
+ for (i = 0; i < shndx_pool_used; i++)
+ if (shndx_pool [i] == shndx)
+ break;
+
+ if (i >= shndx_pool_used)
+ return NULL;
+
+ /* Now backup to find the first entry in the set. */
+ while (i > 0 && shndx_pool [i - 1] != 0)
+ i--;
+
+ return shndx_pool + i;
+}
+
+/* Display a .debug_cu_index or .debug_tu_index section. */
+
+static int
+display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
+{
+ return process_cu_tu_index (section, 1);
+}
+
static int
display_debug_not_supported (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
/* Please keep this table alpha- sorted. */
{ "Ranges", & do_debug_ranges, 1 },
{ "abbrev", & do_debug_abbrevs, 1 },
+ { "addr", & do_debug_addr, 1 },
{ "aranges", & do_debug_aranges, 1 },
+ { "cu_index", & do_debug_cu_index, 1 },
+ { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
{ "frames", & do_debug_frames, 1 },
{ "frames-interp", & do_debug_frames_interp, 1 },
+ /* The special .gdb_index section. */
+ { "gdb_index", & do_gdb_index, 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 },
/* This entry is for compatability
with earlier versions of readelf. */
{ "ranges", & do_debug_aranges, 1 },
+ { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
{ "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 },
do_trace_info = 1;
do_trace_abbrevs = 1;
do_trace_aranges = 1;
+ do_debug_addr = 1;
+ do_debug_cu_index = 1;
}
struct dwarf_section_display debug_displays[] =
{
- { { ".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 }
+ { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0 },
+ display_debug_abbrev, &do_debug_abbrevs, 0 },
+ { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0 },
+ display_debug_aranges, &do_debug_aranges, 1 },
+ { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0 },
+ display_debug_frames, &do_debug_frames, 1 },
+ { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev },
+ display_debug_info, &do_debug_info, 1 },
+ { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0 },
+ display_debug_lines, &do_debug_lines, 1 },
+ { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0 },
+ display_debug_pubnames, &do_debug_pubnames, 0 },
+ { { ".eh_frame", "", NULL, NULL, 0, 0, 0 },
+ display_debug_frames, &do_debug_frames, 1 },
+ { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0 },
+ display_debug_macinfo, &do_debug_macinfo, 0 },
+ { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0 },
+ display_debug_macro, &do_debug_macinfo, 1 },
+ { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0 },
+ display_debug_str, &do_debug_str, 0 },
+ { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0 },
+ display_debug_loc, &do_debug_loc, 1 },
+ { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0 },
+ display_debug_pubnames, &do_debug_pubtypes, 0 },
+ { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0 },
+ display_debug_ranges, &do_debug_ranges, 1 },
+ { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev },
+ display_debug_types, &do_debug_info, 1 },
+ { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0 },
+ display_debug_not_supported, NULL, 0 },
+ { { ".gdb_index", "", NULL, NULL, 0, 0, 0 },
+ display_gdb_index, &do_gdb_index, 0 },
+ { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev },
+ display_trace_info, &do_trace_info, 1 },
+ { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0 },
+ display_debug_abbrev, &do_trace_abbrevs, 0 },
+ { { ".trace_aranges", "", NULL, NULL, 0, 0, 0 },
+ display_debug_aranges, &do_trace_aranges, 0 },
+ { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo },
+ display_debug_info, &do_debug_info, 1 },
+ { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_abbrev, &do_debug_abbrevs, 0 },
+ { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo },
+ display_debug_types, &do_debug_info, 1 },
+ { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_lines, &do_debug_lines, 1 },
+ { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_loc, &do_debug_loc, 1 },
+ { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_macro, &do_debug_macinfo, 1 },
+ { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_macinfo, &do_debug_macinfo, 0 },
+ { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_str, &do_debug_str, 1 },
+ { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0 },
+ display_debug_str_offsets, NULL, 0 },
+ { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0 },
+ display_debug_str_offsets, NULL, 0 },
+ { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0 },
+ display_debug_addr, &do_debug_addr, 1 },
+ { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0 },
+ display_cu_index, &do_debug_cu_index, 0 },
+ { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0 },
+ display_cu_index, &do_debug_cu_index, 0 },
};
projects / deliverable / binutils-gdb.git / blobdiff