static bfd_boolean do_dynamic = FALSE;
static bfd_boolean do_syms = FALSE;
static bfd_boolean do_dyn_syms = FALSE;
+static bfd_boolean do_lto_syms = FALSE;
static bfd_boolean do_reloc = FALSE;
static bfd_boolean do_sections = FALSE;
static bfd_boolean do_section_groups = FALSE;
{
OPTION_DEBUG_DUMP = 512,
OPTION_DYN_SYMS,
+ OPTION_LTO_SYMS,
OPTION_DWARF_DEPTH,
OPTION_DWARF_START,
OPTION_DWARF_CHECK,
{"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
{"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT},
{"dyn-syms", no_argument, 0, OPTION_DYN_SYMS},
+ {"lto-syms", no_argument, 0, OPTION_LTO_SYMS},
{"debug-dump", optional_argument, 0, OPTION_DEBUG_DUMP},
{"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH},
{"dwarf-start", required_argument, 0, OPTION_DWARF_START},
-s --syms Display the symbol table\n\
--symbols An alias for --syms\n\
--dyn-syms Display the dynamic symbol table\n\
+ --lto-syms Display LTO symbol tables\n\
-C --demangle[=STYLE] Decode low-level symbol names into user-level names\n\
The STYLE, if specified, can be `auto' (the default),\n\
`gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
break;
case 'w':
do_dump = TRUE;
- if (optarg == 0)
+ if (optarg == NULL)
{
do_debugging = TRUE;
dwarf_select_sections_all ();
break;
case OPTION_DEBUG_DUMP:
do_dump = TRUE;
- if (optarg == 0)
+ if (optarg == NULL)
do_debugging = TRUE;
else
{
case OPTION_DYN_SYMS:
do_dyn_syms = TRUE;
break;
+ case OPTION_LTO_SYMS:
+ do_lto_syms = TRUE;
+ break;
#ifdef SUPPORT_DISASSEMBLY
case 'i':
request_dump (dumpdata, DISASS_DUMP);
&& !do_segments && !do_header && !do_dump && !do_version
&& !do_histogram && !do_debugging && !do_arch && !do_notes
&& !do_section_groups && !do_archive_index
- && !do_dyn_syms)
+ && !do_dyn_syms && !do_lto_syms)
{
if (do_checks)
{
do_segments = do_header = do_dump = do_version = TRUE;
do_histogram = do_debugging = do_arch = do_notes = TRUE;
do_section_groups = do_archive_index = do_dyn_syms = TRUE;
+ do_lto_syms = TRUE;
}
else
usage (stderr);
si, printable_section_name (filedata, section), section->sh_info);
}
+static const char *
+get_lto_kind (unsigned int kind)
+{
+ switch (kind)
+ {
+ case 0: return "DEF";
+ case 1: return "WEAKDEF";
+ case 2: return "UNDEF";
+ case 3: return "WEAKUNDEF";
+ case 4: return "COMMON";
+ default:
+ break;
+ }
+
+ static char buffer[30];
+ error (_("Unknown LTO symbol definition encountered: %u\n"), kind);
+ sprintf (buffer, "<unknown: %u>", kind);
+ return buffer;
+}
+
+static const char *
+get_lto_visibility (unsigned int visibility)
+{
+ switch (visibility)
+ {
+ case 0: return "DEFAULT";
+ case 1: return "PROTECTED";
+ case 2: return "INTERNAL";
+ case 3: return "HIDDEN";
+ default:
+ break;
+ }
+
+ static char buffer[30];
+ error (_("Unknown LTO symbol visibility encountered: %u\n"), visibility);
+ sprintf (buffer, "<unknown: %u>", visibility);
+ return buffer;
+}
+
+static const char *
+get_lto_sym_type (unsigned int sym_type)
+{
+ switch (sym_type)
+ {
+ case 0: return "UNKNOWN";
+ case 1: return "FUNCTION";
+ case 2: return "VARIABLE";
+ default:
+ break;
+ }
+
+ static char buffer[30];
+ error (_("Unknown LTO symbol type encountered: %u\n"), sym_type);
+ sprintf (buffer, "<unknown: %u>", sym_type);
+ return buffer;
+}
+
+/* Display an LTO format symbol table.
+ FIXME: The format of LTO symbol tables is not formalized.
+ So this code could need changing in the future. */
+
+static bfd_boolean
+display_lto_symtab (Filedata * filedata,
+ Elf_Internal_Shdr * section)
+{
+ if (section->sh_size == 0)
+ {
+ printf (_("\nLTO Symbol table '%s' is empty!\n"),
+ printable_section_name (filedata, section));
+ return TRUE;
+ }
+
+ if (section->sh_size > filedata->file_size)
+ {
+ error (_("Section %s has an invalid sh_size of 0x%lx\n"),
+ printable_section_name (filedata, section),
+ (unsigned long) section->sh_size);
+ return FALSE;
+ }
+
+ void * alloced_data = get_data (NULL, filedata, section->sh_offset,
+ section->sh_size, 1, _("LTO symbols"));
+ if (alloced_data == NULL)
+ return FALSE;
+
+ /* Look for extended data for the symbol table. */
+ Elf_Internal_Shdr * ext;
+ void * ext_data_orig = NULL;
+ char * ext_data = NULL;
+ char * ext_data_end = NULL;
+ char * ext_name = NULL;
+
+ if (asprintf (& ext_name, ".gnu.lto_.ext_symtab.%s",
+ SECTION_NAME (section) + strlen (".gnu.lto_.symtab.")) > 0
+ && ext_name != NULL /* Paranoia. */
+ && (ext = find_section (filedata, ext_name)) != NULL)
+ {
+ if (ext->sh_size < 3)
+ error (_("LTO Symbol extension table '%s' is empty!\n"),
+ printable_section_name (filedata, ext));
+ else
+ {
+ ext_data_orig = ext_data = get_data (NULL, filedata, ext->sh_offset,
+ ext->sh_size, 1,
+ _("LTO ext symbol data"));
+ if (ext_data != NULL)
+ {
+ ext_data_end = ext_data + ext->sh_size;
+ if (* ext_data++ != 1)
+ error (_("Unexpected version number in symbol extension table\n"));
+ }
+ }
+ }
+
+ const unsigned char * data = (const unsigned char *) alloced_data;
+ const unsigned char * end = data + section->sh_size;
+
+ if (ext_data_orig != NULL)
+ {
+ if (do_wide)
+ printf (_("\nLTO Symbol table '%s' and extension table '%s' contain:\n"),
+ printable_section_name (filedata, section),
+ printable_section_name (filedata, ext));
+ else
+ {
+ printf (_("\nLTO Symbol table '%s'\n"),
+ printable_section_name (filedata, section));
+ printf (_(" and extension table '%s' contain:\n"),
+ printable_section_name (filedata, ext));
+ }
+ }
+ else
+ printf (_("\nLTO Symbol table '%s' contains:\n"),
+ printable_section_name (filedata, section));
+
+
+ /* FIXME: Add a wide version. */
+ if (ext_data_orig != NULL)
+ printf (_(" Comdat_Key Kind Visibility Size Slot Type Section Name\n"));
+ else
+ printf (_(" Comdat_Key Kind Visibility Size Slot Name\n"));
+
+ /* FIXME: We do not handle style prefixes. */
+
+ while (data < end)
+ {
+ const unsigned char * sym_name = data;
+ data += strnlen ((const char *) sym_name, end - data) + 1;
+ if (data >= end)
+ goto fail;
+
+ const unsigned char * comdat_key = data;
+ data += strnlen ((const char *) comdat_key, end - data) + 1;
+ if (data >= end)
+ goto fail;
+
+ if (data + 2 + 8 + 4 > end)
+ goto fail;
+
+ unsigned int kind = *data++;
+ unsigned int visibility = *data++;
+
+ elf_vma size = byte_get (data, 8);
+ data += 8;
+
+ elf_vma slot = byte_get (data, 4);
+ data += 4;
+
+ if (ext_data != NULL)
+ {
+ if (ext_data < (ext_data_end - 1))
+ {
+ unsigned int sym_type = * ext_data ++;
+ unsigned int sec_kind = * ext_data ++;
+
+ printf (" %10s %10s %11s %08lx %08lx %9s %08lx _",
+ * comdat_key == 0 ? "-" : (char *) comdat_key,
+ get_lto_kind (kind),
+ get_lto_visibility (visibility),
+ (long) size,
+ (long) slot,
+ get_lto_sym_type (sym_type),
+ (long) sec_kind);
+ print_symbol (6, (const char *) sym_name);
+ }
+ else
+ {
+ error (_("Ran out of LTO symbol extension data\n"));
+ ext_data = NULL;
+ /* FIXME: return FAIL result ? */
+ }
+ }
+ else
+ {
+ printf (" %10s %10s %11s %08lx %08lx _",
+ * comdat_key == 0 ? "-" : (char *) comdat_key,
+ get_lto_kind (kind),
+ get_lto_visibility (visibility),
+ (long) size,
+ (long) slot);
+ print_symbol (21, (const char *) sym_name);
+ }
+ putchar ('\n');
+ }
+
+ if (ext_data != NULL && ext_data < ext_data_end)
+ {
+ error (_("Data remains in the LTO symbol extension table\n"));
+ goto fail;
+ }
+
+ free (alloced_data);
+ free (ext_data_orig);
+ free (ext_name);
+ return TRUE;
+
+ fail:
+ error (_("Buffer overrun encountered whilst decoding LTO symbol table\n"));
+ free (alloced_data);
+ free (ext_data_orig);
+ free (ext_name);
+ return FALSE;
+}
+
+/* Display LTO symbol tables. */
+
+static bfd_boolean
+process_lto_symbol_tables (Filedata * filedata)
+{
+ Elf_Internal_Shdr * section;
+ unsigned int i;
+ bfd_boolean res = TRUE;
+
+ if (!do_lto_syms)
+ return TRUE;
+
+ if (filedata->section_headers == NULL)
+ return TRUE;
+
+ for (i = 0, section = filedata->section_headers;
+ i < filedata->file_header.e_shnum;
+ i++, section++)
+ if (CONST_STRNEQ (SECTION_NAME (section), ".gnu.lto_.symtab"))
+ res &= display_lto_symtab (filedata, section);
+
+ return res;
+}
+
/* Dump the symbol table. */
+
static bfd_boolean
process_symbol_table (Filedata * filedata)
{
if (! process_symbol_table (filedata))
res = FALSE;
+ if (! process_lto_symbol_tables (filedata))
+ res = FALSE;
+
if (! process_syminfo (filedata))
res = FALSE;
projects / thirdparty / binutils-gdb.git / commitdiff
