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Diffstat (limited to 'binutils/dwarf.c')
-rw-r--r--binutils/dwarf.c550
1 files changed, 496 insertions, 54 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index 5195f8d..d2fc799 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -28,15 +28,18 @@
#include "dwarf2.h"
#include "dwarf.h"
#include "gdb/gdb-index.h"
+#include <assert.h>
+
+#undef MAX
+#undef MIN
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
static const char *regname (unsigned int regno, int row);
static int have_frame_base;
static int need_base_address;
-static unsigned int last_pointer_size = 0;
-static int warned_about_missing_comp_units = FALSE;
-
static unsigned int num_debug_info_entries = 0;
static unsigned int alloc_num_debug_info_entries = 0;
static debug_info *debug_information = NULL;
@@ -211,7 +214,10 @@ dwarf_vmatoa_1 (const char *fmtch, dwarf_vma value, unsigned num_bytes)
{
char fmt[32];
- sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch);
+ if (fmtch)
+ sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch);
+ else
+ sprintf (fmt, "%%%s", DWARF_VMA_FMT);
snprintf (ret, sizeof (buf[0].place), fmt, value);
return ret;
}
@@ -417,6 +423,7 @@ read_uleb128 (unsigned char * data,
typedef struct State_Machine_Registers
{
dwarf_vma address;
+ unsigned int view;
unsigned int file;
unsigned int line;
unsigned int column;
@@ -424,8 +431,8 @@ typedef struct State_Machine_Registers
int basic_block;
unsigned char op_index;
unsigned char end_sequence;
-/* This variable hold the number of the last entry seen
- in the File Table. */
+ /* This variable hold the number of the last entry seen
+ in the File Table. */
unsigned int last_file_entry;
} SMR;
@@ -435,6 +442,7 @@ static void
reset_state_machine (int is_stmt)
{
state_machine_regs.address = 0;
+ state_machine_regs.view = 0;
state_machine_regs.op_index = 0;
state_machine_regs.file = 1;
state_machine_regs.line = 1;
@@ -493,6 +501,7 @@ process_extended_line_op (unsigned char * data,
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.view = 0;
state_machine_regs.op_index = 0;
break;
@@ -961,6 +970,22 @@ get_FORM_name (unsigned long form)
return name;
}
+static const char *
+get_IDX_name (unsigned long idx)
+{
+ const char *name = get_DW_IDX_name ((unsigned int) idx);
+
+ if (name == NULL)
+ {
+ static char buffer[100];
+
+ snprintf (buffer, sizeof (buffer), _("Unknown IDX value: %lx"), idx);
+ return buffer;
+ }
+
+ return name;
+}
+
static unsigned char *
display_block (unsigned char *data,
dwarf_vma length,
@@ -2895,11 +2920,6 @@ process_debug_info (struct dwarf_section *section,
static unsigned int
load_debug_info (void * file)
{
- /* Reset the last pointer size so that we can issue correct error
- messages if we are displaying the contents of more than one section. */
- last_pointer_size = 0;
- warned_about_missing_comp_units = FALSE;
-
/* If we have already tried and failed to load the .debug_info
section then do not bother to repeat the task. */
if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
@@ -3063,7 +3083,7 @@ display_formatted_table (unsigned char *data,
data += bytes_read;
if (data == end)
{
- warn (_("Corrupt %s entry format table entry\n"), what);
+ warn (_("Corrupt %s format table entry\n"), what);
return data;
}
}
@@ -3165,6 +3185,7 @@ display_debug_lines_raw (struct dwarf_section *section,
unsigned char *end, void *file)
{
unsigned char *start = section->start;
+ int verbose_view = 0;
printf (_("Raw dump of debug contents of section %s:\n\n"),
section->name);
@@ -3356,30 +3377,45 @@ display_debug_lines_raw (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
printf (_(" Special opcode %d: "
- "advance Address by %s to 0x%s"),
+ "advance Address by %s to 0x%s%s"),
op_code, dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ verbose_view && uladv
+ ? _(" (reset view)") : "");
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
/ linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+
+ state_machine_regs.address += addrdelta;
state_machine_regs.op_index
= (state_machine_regs.op_index + uladv)
% linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
printf (_(" Special opcode %d: "
- "advance Address by %s to 0x%s[%d]"),
+ "advance Address by %s to 0x%s[%d]%s"),
op_code, dwarf_vmatoa ("u", uladv),
dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index);
+ state_machine_regs.op_index,
+ verbose_view && addrdelta
+ ? _(" (reset view)") : "");
}
adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
state_machine_regs.line += adv;
- printf (_(" and Line by %s to %d\n"),
+ printf (_(" and Line by %s to %d"),
dwarf_vmatoa ("d", adv), state_machine_regs.line);
+ if (verbose_view || state_machine_regs.view)
+ printf (_(" (view %u)\n"), state_machine_regs.view);
+ else
+ putchar ('\n');
+ state_machine_regs.view++;
}
else switch (op_code)
{
@@ -3388,7 +3424,12 @@ display_debug_lines_raw (struct dwarf_section *section,
break;
case DW_LNS_copy:
- printf (_(" Copy\n"));
+ printf (_(" Copy"));
+ if (verbose_view || state_machine_regs.view)
+ printf (_(" (view %u)\n"), state_machine_regs.view);
+ else
+ putchar ('\n');
+ state_machine_regs.view++;
break;
case DW_LNS_advance_pc:
@@ -3398,23 +3439,33 @@ display_debug_lines_raw (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
- printf (_(" Advance PC by %s to 0x%s\n"),
+ if (uladv)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by %s to 0x%s%s\n"),
dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ verbose_view && uladv
+ ? _(" (reset view)") : "");
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
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"),
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
dwarf_vmatoa ("u", uladv),
dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index);
+ state_machine_regs.op_index,
+ verbose_view && addrdelta
+ ? _(" (reset view)") : "");
}
break;
@@ -3461,23 +3512,33 @@ display_debug_lines_raw (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
- printf (_(" Advance PC by constant %s to 0x%s\n"),
+ if (uladv)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by constant %s to 0x%s%s\n"),
dwarf_vmatoa ("u", uladv),
- dwarf_vmatoa ("x", state_machine_regs.address));
+ dwarf_vmatoa ("x", state_machine_regs.address),
+ verbose_view && uladv
+ ? _(" (reset view)") : "");
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
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"),
+ if (addrdelta)
+ state_machine_regs.view = 0;
+ printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
dwarf_vmatoa ("u", uladv),
dwarf_vmatoa ("x", state_machine_regs.address),
- state_machine_regs.op_index);
+ state_machine_regs.op_index,
+ verbose_view && addrdelta
+ ? _(" (reset view)") : "");
}
break;
@@ -3488,6 +3549,7 @@ display_debug_lines_raw (struct dwarf_section *section,
printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
dwarf_vmatoa ("u", uladv),
dwarf_vmatoa ("x", state_machine_regs.address));
+ /* Do NOT reset view. */
break;
case DW_LNS_set_prologue_end:
@@ -3900,7 +3962,7 @@ display_debug_lines_decoded (struct dwarf_section *section,
printf ("%s:\n", file_table[0].name);
}
- printf (_("File name Line number Starting address\n"));
+ printf (_("File name Line number Starting address View\n"));
saved_linfo = linfo;
}
@@ -3908,12 +3970,14 @@ display_debug_lines_decoded (struct dwarf_section *section,
while (data < end_of_sequence)
{
unsigned char op_code;
+ int xop;
int adv;
unsigned long int uladv;
unsigned int bytes_read;
int is_special_opcode = 0;
op_code = *data++;
+ xop = op_code;
if (op_code >= linfo.li_opcode_base)
{
@@ -3923,21 +3987,28 @@ display_debug_lines_decoded (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
state_machine_regs.op_index
= (state_machine_regs.op_index + uladv)
% linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
}
adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
state_machine_regs.line += adv;
is_special_opcode = 1;
+ /* Increment view after printing this row. */
}
else switch (op_code)
{
@@ -3958,11 +4029,13 @@ display_debug_lines_decoded (struct dwarf_section *section,
}
ext_op_code_len += bytes_read;
ext_op_code = *op_code_data++;
+ xop = ext_op_code;
+ xop = -xop;
switch (ext_op_code)
{
case DW_LNE_end_sequence:
- reset_state_machine (linfo.li_default_is_stmt);
+ /* Reset stuff after printing this row. */
break;
case DW_LNE_set_address:
SAFE_BYTE_GET_AND_INC (state_machine_regs.address,
@@ -3970,6 +4043,7 @@ display_debug_lines_decoded (struct dwarf_section *section,
ext_op_code_len - bytes_read - 1,
end);
state_machine_regs.op_index = 0;
+ state_machine_regs.view = 0;
break;
case DW_LNE_define_file:
{
@@ -4012,6 +4086,7 @@ display_debug_lines_decoded (struct dwarf_section *section,
break;
}
case DW_LNS_copy:
+ /* Increment view after printing this row. */
break;
case DW_LNS_advance_pc:
@@ -4021,16 +4096,22 @@ display_debug_lines_decoded (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
state_machine_regs.op_index
= (state_machine_regs.op_index + uladv)
% linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
}
break;
@@ -4099,16 +4180,22 @@ display_debug_lines_decoded (struct dwarf_section *section,
{
uladv *= linfo.li_min_insn_length;
state_machine_regs.address += uladv;
+ if (uladv)
+ state_machine_regs.view = 0;
}
else
{
- state_machine_regs.address
- += ((state_machine_regs.op_index + uladv)
- / linfo.li_max_ops_per_insn)
+ unsigned addrdelta
+ = ((state_machine_regs.op_index + uladv)
+ / linfo.li_max_ops_per_insn)
* linfo.li_min_insn_length;
+ state_machine_regs.address
+ += addrdelta;
state_machine_regs.op_index
= (state_machine_regs.op_index + uladv)
% linfo.li_max_ops_per_insn;
+ if (addrdelta)
+ state_machine_regs.view = 0;
}
break;
@@ -4116,6 +4203,7 @@ display_debug_lines_decoded (struct dwarf_section *section,
SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
state_machine_regs.address += uladv;
state_machine_regs.op_index = 0;
+ /* Do NOT reset view. */
break;
case DW_LNS_set_prologue_end:
@@ -4147,8 +4235,8 @@ display_debug_lines_decoded (struct dwarf_section *section,
/* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
to the DWARF address/line matrix. */
- if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
- || (op_code == DW_LNS_copy))
+ if ((is_special_opcode) || (xop == -DW_LNE_end_sequence)
+ || (xop == DW_LNS_copy))
{
const unsigned int MAX_FILENAME_LENGTH = 35;
char *fileName;
@@ -4189,11 +4277,11 @@ display_debug_lines_decoded (struct dwarf_section *section,
if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
{
if (linfo.li_max_ops_per_insn == 1)
- printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n",
+ printf ("%-35s %11d %#18" DWARF_VMA_FMT "x",
newFileName, state_machine_regs.line,
state_machine_regs.address);
else
- printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
+ printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]",
newFileName, state_machine_regs.line,
state_machine_regs.address,
state_machine_regs.op_index);
@@ -4201,18 +4289,27 @@ display_debug_lines_decoded (struct dwarf_section *section,
else
{
if (linfo.li_max_ops_per_insn == 1)
- printf ("%s %11d %#18" DWARF_VMA_FMT "x\n",
+ printf ("%s %11d %#18" DWARF_VMA_FMT "x",
newFileName, state_machine_regs.line,
state_machine_regs.address);
else
- printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
+ printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]",
newFileName, state_machine_regs.line,
state_machine_regs.address,
state_machine_regs.op_index);
}
- if (op_code == DW_LNE_end_sequence)
- printf ("\n");
+ if (state_machine_regs.view)
+ printf (" %6u\n", state_machine_regs.view);
+ else
+ putchar ('\n');
+ state_machine_regs.view++;
+
+ if (xop == -DW_LNE_end_sequence)
+ {
+ reset_state_machine (linfo.li_default_is_stmt);
+ putchar ('\n');
+ }
free (newFileName);
}
@@ -7634,6 +7731,349 @@ display_debug_frames (struct dwarf_section *section,
#undef GET
static int
+display_debug_names (struct dwarf_section *section, void *file)
+{
+ unsigned char *hdrptr = section->start;
+ dwarf_vma unit_length;
+ unsigned char *unit_start;
+ const unsigned char *const section_end = section->start + section->size;
+ unsigned char *unit_end;
+
+ printf (_("Contents of the %s section:\n"), section->name);
+
+ load_debug_section (str, file);
+
+ for (; hdrptr < section_end; hdrptr = unit_end)
+ {
+ unsigned int offset_size;
+ uint16_t dwarf_version, padding;
+ uint32_t comp_unit_count, local_type_unit_count, foreign_type_unit_count;
+ uint32_t bucket_count, name_count, abbrev_table_size;
+ uint32_t augmentation_string_size;
+ unsigned int i;
+
+ unit_start = hdrptr;
+
+ /* Get and check the length of the block. */
+ SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 4, section_end);
+
+ if (unit_length == 0xffffffff)
+ {
+ /* This section is 64-bit DWARF. */
+ SAFE_BYTE_GET_AND_INC (unit_length, hdrptr, 8, section_end);
+ offset_size = 8;
+ }
+ else
+ offset_size = 4;
+ unit_end = hdrptr + unit_length;
+
+ if ((hdrptr - section->start) + unit_length > section->size)
+ {
+ warn (_("The length field (0x%lx) for unit 0x%lx in the debug_names "
+ "header is wrong - the section is too small\n"),
+ (long) unit_length, (long) (unit_start - section->start));
+ return 0;
+ }
+
+ /* Get and check the version number. */
+ SAFE_BYTE_GET_AND_INC (dwarf_version, hdrptr, 2, unit_end);
+ printf (_("Version %ld\n"), (long) dwarf_version);
+
+ /* Prior versions did not exist, and future versions may not be
+ backwards compatible. */
+ if (dwarf_version != 5)
+ {
+ warn (_("Only DWARF version 5 .debug_names "
+ "is currently supported.\n"));
+ return 0;
+ }
+
+ SAFE_BYTE_GET_AND_INC (padding, hdrptr, 2, unit_end);
+ if (padding != 0)
+ warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
+ padding);
+
+ SAFE_BYTE_GET_AND_INC (comp_unit_count, hdrptr, 4, unit_end);
+ if (comp_unit_count == 0)
+ warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
+
+ SAFE_BYTE_GET_AND_INC (local_type_unit_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (foreign_type_unit_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (bucket_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (name_count, hdrptr, 4, unit_end);
+ SAFE_BYTE_GET_AND_INC (abbrev_table_size, hdrptr, 4, unit_end);
+
+ SAFE_BYTE_GET_AND_INC (augmentation_string_size, hdrptr, 4, unit_end);
+ if (augmentation_string_size % 4 != 0)
+ {
+ warn (_("Augmentation string length %u must be rounded up "
+ "to a multiple of 4 in .debug_names.\n"),
+ augmentation_string_size);
+ augmentation_string_size += (-augmentation_string_size) & 3;
+ }
+ printf (_("Augmentation string:"));
+ for (i = 0; i < augmentation_string_size; i++)
+ {
+ unsigned char uc;
+
+ SAFE_BYTE_GET_AND_INC (uc, hdrptr, 1, unit_end);
+ printf (" %02x", uc);
+ }
+ putchar ('\n');
+ putchar ('\n');
+
+ printf (_("CU table:\n"));
+ for (i = 0; i < comp_unit_count; i++)
+ {
+ uint64_t cu_offset;
+
+ SAFE_BYTE_GET_AND_INC (cu_offset, hdrptr, offset_size, unit_end);
+ printf (_("[%3u] 0x%lx\n"), i, (unsigned long) cu_offset);
+ }
+ putchar ('\n');
+
+ printf (_("TU table:\n"));
+ for (i = 0; i < local_type_unit_count; i++)
+ {
+ uint64_t tu_offset;
+
+ SAFE_BYTE_GET_AND_INC (tu_offset, hdrptr, offset_size, unit_end);
+ printf (_("[%3u] 0x%lx\n"), i, (unsigned long) tu_offset);
+ }
+ putchar ('\n');
+
+ printf (_("Foreign TU table:\n"));
+ for (i = 0; i < foreign_type_unit_count; i++)
+ {
+ uint64_t signature;
+
+ SAFE_BYTE_GET_AND_INC (signature, hdrptr, 8, unit_end);
+ printf (_("[%3u] "), i);
+ print_dwarf_vma (signature, 8);
+ putchar ('\n');
+ }
+ putchar ('\n');
+
+ const uint32_t *const hash_table_buckets = (uint32_t *) hdrptr;
+ hdrptr += bucket_count * sizeof (uint32_t);
+ const uint32_t *const hash_table_hashes = (uint32_t *) hdrptr;
+ hdrptr += name_count * sizeof (uint32_t);
+ unsigned char *const name_table_string_offsets = hdrptr;
+ hdrptr += name_count * offset_size;
+ unsigned char *const name_table_entry_offsets = hdrptr;
+ hdrptr += name_count * offset_size;
+ unsigned char *const abbrev_table = hdrptr;
+ hdrptr += abbrev_table_size;
+ const unsigned char *const abbrev_table_end = hdrptr;
+ unsigned char *const entry_pool = hdrptr;
+ if (hdrptr > unit_end)
+ {
+ warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
+ "for unit 0x%lx in the debug_names\n"),
+ (long) (hdrptr - section->start),
+ (long) (unit_end - section->start),
+ (long) (unit_start - section->start));
+ return 0;
+ }
+
+ size_t buckets_filled = 0;
+ size_t bucketi;
+ for (bucketi = 0; bucketi < bucket_count; bucketi++)
+ {
+ const uint32_t bucket = hash_table_buckets[bucketi];
+
+ if (bucket != 0)
+ ++buckets_filled;
+ }
+ printf (_("Used %zu of %lu buckets.\n"), buckets_filled,
+ (unsigned long) bucket_count);
+
+ uint32_t hash_prev = 0;
+ size_t hash_clash_count = 0;
+ size_t longest_clash = 0;
+ size_t this_length = 0;
+ size_t hashi;
+ for (hashi = 0; hashi < name_count; hashi++)
+ {
+ const uint32_t hash_this = hash_table_hashes[hashi];
+
+ if (hashi > 0)
+ {
+ if (hash_prev % bucket_count == hash_this % bucket_count)
+ {
+ ++hash_clash_count;
+ ++this_length;
+ longest_clash = MAX (longest_clash, this_length);
+ }
+ else
+ this_length = 0;
+ }
+ hash_prev = hash_this;
+ }
+ printf (_("Out of %lu items there are %zu bucket clashes"
+ " (longest of %zu entries).\n"),
+ (unsigned long) name_count, hash_clash_count, longest_clash);
+ assert (name_count == buckets_filled + hash_clash_count);
+
+ struct abbrev_lookup_entry
+ {
+ dwarf_vma abbrev_tag;
+ unsigned char *abbrev_lookup_ptr;
+ };
+ struct abbrev_lookup_entry *abbrev_lookup = NULL;
+ size_t abbrev_lookup_used = 0;
+ size_t abbrev_lookup_allocated = 0;
+
+ unsigned char *abbrevptr = abbrev_table;
+ for (;;)
+ {
+ unsigned int bytes_read;
+ const dwarf_vma abbrev_tag = read_uleb128 (abbrevptr, &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ if (abbrev_tag == 0)
+ break;
+ if (abbrev_lookup_used == abbrev_lookup_allocated)
+ {
+ abbrev_lookup_allocated = MAX (0x100,
+ abbrev_lookup_allocated * 2);
+ abbrev_lookup = xrealloc (abbrev_lookup,
+ (abbrev_lookup_allocated
+ * sizeof (*abbrev_lookup)));
+ }
+ assert (abbrev_lookup_used < abbrev_lookup_allocated);
+ struct abbrev_lookup_entry *entry;
+ for (entry = abbrev_lookup;
+ entry < abbrev_lookup + abbrev_lookup_used;
+ entry++)
+ if (entry->abbrev_tag == abbrev_tag)
+ {
+ warn (_("Duplicate abbreviation tag %lu "
+ "in unit 0x%lx in the debug_names\n"),
+ (long) abbrev_tag, (long) (unit_start - section->start));
+ break;
+ }
+ entry = &abbrev_lookup[abbrev_lookup_used++];
+ entry->abbrev_tag = abbrev_tag;
+ entry->abbrev_lookup_ptr = abbrevptr;
+
+ /* Skip DWARF tag. */
+ read_uleb128 (abbrevptr, &bytes_read, abbrev_table_end);
+ abbrevptr += bytes_read;
+ for (;;)
+ {
+ const dwarf_vma xindex = read_uleb128 (abbrevptr,
+ &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ const dwarf_vma form = read_uleb128 (abbrevptr, &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ if (xindex == 0 && form == 0)
+ break;
+ }
+ }
+
+ printf (_("\nSymbol table:\n"));
+ uint32_t namei;
+ for (namei = 0; namei < name_count; ++namei)
+ {
+ uint64_t string_offset, entry_offset;
+
+ SAFE_BYTE_GET (string_offset,
+ name_table_string_offsets + namei * offset_size,
+ offset_size, unit_end);
+ SAFE_BYTE_GET (entry_offset,
+ name_table_entry_offsets + namei * offset_size,
+ offset_size, unit_end);
+
+ printf ("[%3u] #%08x %s:", namei, hash_table_hashes[namei],
+ fetch_indirect_string (string_offset));
+
+ unsigned char *entryptr = entry_pool + entry_offset;
+
+ // We need to scan first whether there is a single or multiple
+ // entries. TAGNO is -2 for the first entry, it is -1 for the
+ // initial tag read of the second entry, then it becomes 0 for the
+ // first entry for real printing etc.
+ int tagno = -2;
+ /* Initialize it due to a false compiler warning. */
+ dwarf_vma second_abbrev_tag = -1;
+ for (;;)
+ {
+ unsigned int bytes_read;
+ const dwarf_vma abbrev_tag = read_uleb128 (entryptr, &bytes_read,
+ unit_end);
+ entryptr += bytes_read;
+ if (tagno == -1)
+ {
+ second_abbrev_tag = abbrev_tag;
+ tagno = 0;
+ entryptr = entry_pool + entry_offset;
+ continue;
+ }
+ if (abbrev_tag == 0)
+ break;
+ if (tagno >= 0)
+ printf ("%s<%lu>",
+ (tagno == 0 && second_abbrev_tag == 0 ? " " : "\n\t"),
+ (unsigned long) abbrev_tag);
+
+ const struct abbrev_lookup_entry *entry;
+ for (entry = abbrev_lookup;
+ entry < abbrev_lookup + abbrev_lookup_used;
+ entry++)
+ if (entry->abbrev_tag == abbrev_tag)
+ break;
+ if (entry >= abbrev_lookup + abbrev_lookup_used)
+ {
+ warn (_("Undefined abbreviation tag %lu "
+ "in unit 0x%lx in the debug_names\n"),
+ (long) abbrev_tag,
+ (long) (unit_start - section->start));
+ break;
+ }
+ abbrevptr = entry->abbrev_lookup_ptr;
+ const dwarf_vma dwarf_tag = read_uleb128 (abbrevptr, &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ if (tagno >= 0)
+ printf (" %s", get_TAG_name (dwarf_tag));
+ for (;;)
+ {
+ const dwarf_vma xindex = read_uleb128 (abbrevptr,
+ &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ const dwarf_vma form = read_uleb128 (abbrevptr, &bytes_read,
+ abbrev_table_end);
+ abbrevptr += bytes_read;
+ if (xindex == 0 && form == 0)
+ break;
+
+ if (tagno >= 0)
+ printf (" %s", get_IDX_name (xindex));
+ entryptr = read_and_display_attr_value (0, form, 0, entryptr,
+ unit_end, 0, 0,
+ offset_size,
+ dwarf_version, NULL,
+ (tagno < 0), NULL,
+ NULL, '=');
+ }
+ ++tagno;
+ }
+ if (tagno <= 0)
+ printf (_(" <no entries>"));
+ putchar ('\n');
+ }
+
+ free (abbrev_lookup);
+ }
+
+ return 1;
+}
+
+static int
display_gdb_index (struct dwarf_section *section,
void *file ATTRIBUTE_UNUSED)
{
@@ -7718,7 +8158,7 @@ display_gdb_index (struct dwarf_section *section,
/* PR 17531: file: 18a47d3d. */
if (symbol_table_offset < address_table_offset)
{
- warn (_("Symbol table offset (%xl) is less then Address table offset (%x)\n"),
+ warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
symbol_table_offset, address_table_offset);
return 0;
}
@@ -8628,6 +9068,8 @@ struct dwarf_section_display debug_displays[] =
display_debug_not_supported, NULL, FALSE },
{ { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_gdb_index, &do_gdb_index, FALSE },
+ { { ".debug_names", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
+ display_debug_names, &do_gdb_index, FALSE },
{ { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL, 0, NULL },
display_trace_info, &do_trace_info, TRUE },
{ { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
generated by cgit v1.1 at 2025-09-27 18:58:13 +0000