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binutils/
2007-10-09 H.J. Lu <hongjiu.lu@intel.com> PR binutils/4476 * readelf.c (print_dynamic_symbol): New. (process_symbol_table): Handle DT_GNU_HASH for dynamic symbols. ld/testsuite/ 2007-10-09 H.J. Lu <hongjiu.lu@intel.com> PR binutils/4476 * ld-elf/hash.d: Check "-s -D" for readelf.
This commit is contained in:
H.J. Lu
parent
51e9e0d47b
commit
6bd1a22c3e
@ -1,3 +1,9 @@
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2007-10-09 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/4476
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* readelf.c (print_dynamic_symbol): New.
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(process_symbol_table): Handle DT_GNU_HASH for dynamic symbols.
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2007-10-08 Carlos O'Donell <carlos@codesourcery.com>
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* resrc.c (read_rc_file): Rename e to edit, and c to dir.
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@ -7084,6 +7084,39 @@ get_dynamic_data (FILE *file, unsigned int number, unsigned int ent_size)
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return i_data;
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}
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static void
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print_dynamic_symbol (bfd_vma si, unsigned long hn)
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{
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Elf_Internal_Sym *psym;
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int n;
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psym = dynamic_symbols + si;
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n = print_vma (si, DEC_5);
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if (n < 5)
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fputs (" " + n, stdout);
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printf (" %3lu: ", hn);
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print_vma (psym->st_value, LONG_HEX);
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putchar (' ');
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print_vma (psym->st_size, DEC_5);
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printf (" %6s", get_symbol_type (ELF_ST_TYPE (psym->st_info)));
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printf (" %6s", get_symbol_binding (ELF_ST_BIND (psym->st_info)));
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printf (" %3s", get_symbol_visibility (ELF_ST_VISIBILITY (psym->st_other)));
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/* Check to see if any other bits in the st_other field are set.
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Note - displaying this information disrupts the layout of the
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table being generated, but for the moment this case is very
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rare. */
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if (psym->st_other ^ ELF_ST_VISIBILITY (psym->st_other))
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printf (" [%s] ", get_symbol_other (psym->st_other ^ ELF_ST_VISIBILITY (psym->st_other)));
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printf (" %3.3s ", get_symbol_index_type (psym->st_shndx));
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if (VALID_DYNAMIC_NAME (psym->st_name))
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print_symbol (25, GET_DYNAMIC_NAME (psym->st_name));
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else
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printf (" <corrupt: %14ld>", psym->st_name);
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putchar ('\n');
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}
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/* Dump the symbol table. */
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static int
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process_symbol_table (FILE *file)
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@ -7096,12 +7129,14 @@ process_symbol_table (FILE *file)
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bfd_vma ngnubuckets = 0;
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bfd_vma *gnubuckets = NULL;
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bfd_vma *gnuchains = NULL;
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bfd_vma gnusymidx = 0;
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if (! do_syms && !do_histogram)
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return 1;
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if (dynamic_info[DT_HASH] && ((do_using_dynamic && dynamic_strings != NULL)
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|| do_histogram))
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if (dynamic_info[DT_HASH]
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&& (do_histogram
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|| (do_using_dynamic && dynamic_strings != NULL)))
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{
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unsigned char nb[8];
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unsigned char nc[8];
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@ -7145,54 +7180,157 @@ process_symbol_table (FILE *file)
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return 0;
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}
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if (do_syms
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&& dynamic_info[DT_HASH] && do_using_dynamic && dynamic_strings != NULL)
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if (dynamic_info_DT_GNU_HASH
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&& (do_histogram
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|| (do_using_dynamic && dynamic_strings != NULL)))
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{
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unsigned char nb[16];
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bfd_vma i, maxchain = 0xffffffff, bitmaskwords;
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bfd_vma buckets_vma;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, dynamic_info_DT_GNU_HASH,
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sizeof nb)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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if (fread (nb, 16, 1, file) != 1)
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{
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error (_("Failed to read in number of buckets\n"));
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return 0;
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}
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ngnubuckets = byte_get (nb, 4);
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gnusymidx = byte_get (nb + 4, 4);
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bitmaskwords = byte_get (nb + 8, 4);
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buckets_vma = dynamic_info_DT_GNU_HASH + 16;
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if (is_32bit_elf)
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buckets_vma += bitmaskwords * 4;
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else
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buckets_vma += bitmaskwords * 8;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma, 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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gnubuckets = get_dynamic_data (file, ngnubuckets, 4);
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if (gnubuckets == NULL)
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return 0;
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for (i = 0; i < ngnubuckets; i++)
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if (gnubuckets[i] != 0)
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{
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if (gnubuckets[i] < gnusymidx)
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return 0;
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if (maxchain == 0xffffffff || gnubuckets[i] > maxchain)
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maxchain = gnubuckets[i];
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}
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if (maxchain == 0xffffffff)
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return 0;
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maxchain -= gnusymidx;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma
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+ 4 * (ngnubuckets + maxchain), 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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do
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{
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if (fread (nb, 4, 1, file) != 1)
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{
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error (_("Failed to determine last chain length\n"));
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return 0;
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}
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if (maxchain + 1 == 0)
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return 0;
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++maxchain;
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}
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while ((byte_get (nb, 4) & 1) == 0);
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma + 4 * ngnubuckets, 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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gnuchains = get_dynamic_data (file, maxchain, 4);
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if (gnuchains == NULL)
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return 0;
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}
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if ((dynamic_info[DT_HASH] || dynamic_info_DT_GNU_HASH)
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&& do_syms
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&& do_using_dynamic
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&& dynamic_strings != NULL)
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{
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unsigned long hn;
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bfd_vma si;
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printf (_("\nSymbol table for image:\n"));
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if (is_32bit_elf)
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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else
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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for (hn = 0; hn < nbuckets; hn++)
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if (dynamic_info[DT_HASH])
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{
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if (! buckets[hn])
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continue;
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bfd_vma si;
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for (si = buckets[hn]; si < nchains && si > 0; si = chains[si])
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printf (_("\nSymbol table for image:\n"));
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if (is_32bit_elf)
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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else
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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for (hn = 0; hn < nbuckets; hn++)
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{
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Elf_Internal_Sym *psym;
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int n;
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if (! buckets[hn])
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continue;
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psym = dynamic_symbols + si;
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n = print_vma (si, DEC_5);
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if (n < 5)
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fputs (" " + n, stdout);
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printf (" %3lu: ", hn);
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print_vma (psym->st_value, LONG_HEX);
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putchar (' ');
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print_vma (psym->st_size, DEC_5);
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printf (" %6s", get_symbol_type (ELF_ST_TYPE (psym->st_info)));
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printf (" %6s", get_symbol_binding (ELF_ST_BIND (psym->st_info)));
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printf (" %3s", get_symbol_visibility (ELF_ST_VISIBILITY (psym->st_other)));
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/* Check to see if any other bits in the st_other field are set.
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Note - displaying this information disrupts the layout of the
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table being generated, but for the moment this case is very rare. */
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if (psym->st_other ^ ELF_ST_VISIBILITY (psym->st_other))
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printf (" [%s] ", get_symbol_other (psym->st_other ^ ELF_ST_VISIBILITY (psym->st_other)));
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printf (" %3.3s ", get_symbol_index_type (psym->st_shndx));
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if (VALID_DYNAMIC_NAME (psym->st_name))
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print_symbol (25, GET_DYNAMIC_NAME (psym->st_name));
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else
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printf (" <corrupt: %14ld>", psym->st_name);
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putchar ('\n');
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for (si = buckets[hn]; si < nchains && si > 0; si = chains[si])
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print_dynamic_symbol (si, hn);
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}
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}
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if (dynamic_info_DT_GNU_HASH)
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{
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printf (_("\nSymbol table of `.gnu.hash' for image:\n"));
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if (is_32bit_elf)
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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else
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printf (_(" Num Buc: Value Size Type Bind Vis Ndx Name\n"));
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for (hn = 0; hn < ngnubuckets; ++hn)
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if (gnubuckets[hn] != 0)
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{
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bfd_vma si = gnubuckets[hn];
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bfd_vma off = si - gnusymidx;
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do
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{
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print_dynamic_symbol (si, hn);
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si++;
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}
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while ((gnuchains[off++] & 1) == 0);
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}
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}
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}
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else if (do_syms && !do_using_dynamic)
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{
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@ -7477,108 +7615,12 @@ process_symbol_table (FILE *file)
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if (do_histogram && dynamic_info_DT_GNU_HASH)
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{
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unsigned char nb[16];
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bfd_vma i, maxchain = 0xffffffff, symidx, bitmaskwords;
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unsigned long *lengths;
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unsigned long *counts;
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unsigned long hn;
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unsigned long maxlength = 0;
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unsigned long nzero_counts = 0;
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unsigned long nsyms = 0;
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bfd_vma buckets_vma;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, dynamic_info_DT_GNU_HASH,
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sizeof nb)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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if (fread (nb, 16, 1, file) != 1)
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{
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error (_("Failed to read in number of buckets\n"));
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return 0;
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}
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ngnubuckets = byte_get (nb, 4);
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symidx = byte_get (nb + 4, 4);
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bitmaskwords = byte_get (nb + 8, 4);
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buckets_vma = dynamic_info_DT_GNU_HASH + 16;
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if (is_32bit_elf)
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buckets_vma += bitmaskwords * 4;
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else
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buckets_vma += bitmaskwords * 8;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma, 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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gnubuckets = get_dynamic_data (file, ngnubuckets, 4);
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if (gnubuckets == NULL)
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return 0;
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for (i = 0; i < ngnubuckets; i++)
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if (gnubuckets[i] != 0)
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{
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if (gnubuckets[i] < symidx)
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return 0;
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if (maxchain == 0xffffffff || gnubuckets[i] > maxchain)
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maxchain = gnubuckets[i];
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}
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if (maxchain == 0xffffffff)
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return 0;
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maxchain -= symidx;
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma
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+ 4 * (ngnubuckets + maxchain), 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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do
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{
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if (fread (nb, 4, 1, file) != 1)
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{
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error (_("Failed to determine last chain length\n"));
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return 0;
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}
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if (maxchain + 1 == 0)
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return 0;
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++maxchain;
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}
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while ((byte_get (nb, 4) & 1) == 0);
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if (fseek (file,
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(archive_file_offset
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+ offset_from_vma (file, buckets_vma + 4 * ngnubuckets, 4)),
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SEEK_SET))
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{
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error (_("Unable to seek to start of dynamic information\n"));
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return 0;
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}
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gnuchains = get_dynamic_data (file, maxchain, 4);
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if (gnuchains == NULL)
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return 0;
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lengths = calloc (ngnubuckets, sizeof (*lengths));
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if (lengths == NULL)
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@ -7596,7 +7638,7 @@ process_symbol_table (FILE *file)
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{
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bfd_vma off, length = 1;
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for (off = gnubuckets[hn] - symidx;
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for (off = gnubuckets[hn] - gnusymidx;
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(gnuchains[off] & 1) == 0; ++off)
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++length;
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lengths[hn] = length;
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@ -1,3 +1,8 @@
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2007-10-09 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/4476
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* ld-elf/hash.d: Check "-s -D" for readelf.
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2007-10-02 Ralf Habecker <ralf.habacker@freenet.de>
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PR linker/4844
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@ -1,5 +1,5 @@
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#source: start.s
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#readelf: -d
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#readelf: -d -s -D
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#ld: -shared --hash-style=gnu
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#target: *-*-linux*
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#notarget: mips*-*-*
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@ -7,3 +7,11 @@
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#...
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[ ]*0x[0-9a-z]+[ ]+\(GNU_HASH\)[ ]+0x[0-9a-z]+
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#...
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[ ]+[0-9]+[ ]+[0-9]+:[ ]+[0-9a-f]+[ ]+[0-9]+[ ]+NOTYPE[ ]+GLOBAL DEFAULT[ ]+[1-9] _start
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#...
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[ ]+[0-9]+[ ]+[0-9]+:[ ]+[0-9a-f]+[ ]+[0-9]+[ ]+NOTYPE[ ]+GLOBAL DEFAULT[ ]+[1-9] main
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#...
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[ ]+[0-9]+[ ]+[0-9]+:[ ]+[0-9a-f]+[ ]+[0-9]+[ ]+NOTYPE[ ]+GLOBAL DEFAULT[ ]+[1-9] start
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#...
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[ ]+[0-9]+[ ]+[0-9]+:[ ]+[0-9a-f]+[ ]+[0-9]+[ ]+NOTYPE[ ]+GLOBAL DEFAULT[ ]+[1-9] __start
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#...
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