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https://github.com/darlinghq/darling-gdb.git
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(process_dynamic_segment): Read syminfo section if available.
(process_syminfo): New function. Print syminfo information. (process_file): Call process_syminfo and free syminfo data at the end.
This commit is contained in:
Ulrich Drepper
parent
59587664ab
commit
fdf959ddcb
@ -73,6 +73,9 @@ unsigned int rela_size;
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char * dynamic_strings;
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char * string_table;
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Elf_Internal_Sym * dynamic_symbols;
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Elf_Internal_Syminfo * dynamic_syminfo;
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unsigned long int dynamic_syminfo_offset;
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unsigned int dynamic_syminfo_nent;
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char program_interpreter [64];
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int dynamic_info[DT_JMPREL + 1];
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int version_info[16];
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@ -1289,7 +1292,7 @@ process_program_headers (file)
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printf
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(_("\nProgram Header%s:\n"), elf_header.e_phnum > 1 ? "s" : "");
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printf
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(_(" Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align\n"));
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(_(" Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align\n"));
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}
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loadaddr = -1;
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@ -1302,7 +1305,7 @@ process_program_headers (file)
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if (do_segments)
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{
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printf (" %-11.11s ", get_segment_type (segment->p_type));
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printf ("0x%5.5lx ", (unsigned long) segment->p_offset);
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printf ("0x%6.6lx ", (unsigned long) segment->p_offset);
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printf ("0x%8.8lx ", (unsigned long) segment->p_vaddr);
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printf ("0x%8.8lx ", (unsigned long) segment->p_paddr);
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printf ("0x%5.5lx ", (unsigned long) segment->p_filesz);
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@ -1521,6 +1524,7 @@ process_section_headers (file)
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and dynamic string table. */
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dynamic_symbols = NULL;
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dynamic_strings = NULL;
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dynamic_syminfo = NULL;
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for (i = 0, section = section_headers;
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i < elf_header.e_shnum;
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i ++, section ++)
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@ -1697,26 +1701,70 @@ static void
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dynamic_segment_mips_val (entry)
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Elf_Internal_Dyn *entry;
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{
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switch (entry->d_tag)
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{
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case DT_MIPS_LOCAL_GOTNO:
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case DT_MIPS_CONFLICTNO:
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case DT_MIPS_LIBLISTNO:
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case DT_MIPS_SYMTABNO:
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case DT_MIPS_UNREFEXTNO:
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case DT_MIPS_HIPAGENO:
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case DT_MIPS_DELTA_CLASS_NO:
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case DT_MIPS_DELTA_INSTANCE_NO:
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case DT_MIPS_DELTA_RELOC_NO:
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case DT_MIPS_DELTA_SYM_NO:
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case DT_MIPS_DELTA_CLASSSYM_NO:
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if (do_dynamic)
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if (do_dynamic)
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switch (entry->d_tag)
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{
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case DT_MIPS_FLAGS:
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if (entry->d_un.d_val == 0)
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printf ("NONE\n");
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else
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{
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static const char *opts[] =
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{
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"QUICKSTART", "NOTPOT", "NO_LIBRARY_REPLACEMENT",
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"NO_MOVE", "SGI_ONLY", "GUARANTEE_INIT", "DELTA_C_PLUS_PLUS",
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"GUARANTEE_START_INIT", "PIXIE", "DEFAULT_DELAY_LOAD",
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"REQUICKSTART", "REQUICKSTARTED", "CORD", "NO_UNRES_UNDEF",
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"RLD_ORDER_SAFE"
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};
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unsigned int cnt;
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int first = 1;
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for (cnt = 0; cnt < sizeof (opts) / sizeof (opts[0]); ++cnt)
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if (entry->d_un.d_val & (1 << cnt))
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{
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printf ("%s%s", first ? "" : " ", opts[cnt]);
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first = 0;
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}
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puts ("");
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}
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break;
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case DT_MIPS_IVERSION:
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if (dynamic_strings != NULL)
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printf ("Interface Version: %s\n",
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dynamic_strings + entry->d_un.d_val);
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else
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printf ("%#ld\n", (long) entry->d_un.d_ptr);
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break;
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case DT_MIPS_TIME_STAMP:
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{
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char timebuf[20];
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time_t time = entry->d_un.d_val;
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strftime (timebuf, 20, "%Y-%m-%dT%H:%M:%S", gmtime (&time));
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printf ("Time Stamp: %s\n", timebuf);
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}
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break;
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case DT_MIPS_RLD_VERSION:
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case DT_MIPS_LOCAL_GOTNO:
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case DT_MIPS_CONFLICTNO:
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case DT_MIPS_LIBLISTNO:
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case DT_MIPS_SYMTABNO:
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case DT_MIPS_UNREFEXTNO:
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case DT_MIPS_HIPAGENO:
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case DT_MIPS_DELTA_CLASS_NO:
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case DT_MIPS_DELTA_INSTANCE_NO:
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case DT_MIPS_DELTA_RELOC_NO:
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case DT_MIPS_DELTA_SYM_NO:
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case DT_MIPS_DELTA_CLASSSYM_NO:
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case DT_MIPS_COMPACT_SIZE:
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printf ("%#ld\n", (long) entry->d_un.d_ptr);
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break;
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default:
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if (do_dynamic)
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break;
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default:
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printf ("%#lx\n", (long) entry->d_un.d_ptr);
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}
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}
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}
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/* Parse the dynamic segment */
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@ -1842,6 +1890,51 @@ process_dynamic_segment (file)
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}
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}
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/* And find the syminfo section if available. */
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if (dynamic_syminfo == NULL)
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{
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unsigned int syminsz = 0;
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for (i = 0, entry = dynamic_segment;
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i < dynamic_size;
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++i, ++ entry)
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{
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if (entry->d_tag == DT_SYMINENT)
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assert (sizeof (Elf_External_Syminfo) == entry->d_un.d_val);
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else if (entry->d_tag == DT_SYMINSZ)
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syminsz = entry->d_un.d_val;
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else if (entry->d_tag == DT_SYMINFO)
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dynamic_syminfo_offset = entry->d_un.d_val - loadaddr;
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}
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if (dynamic_syminfo_offset != 0 && syminsz != 0)
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{
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Elf_External_Syminfo *extsyminfo;
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Elf_Internal_Syminfo *syminfo;
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/* There is a syminfo section. Read the data. */
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GET_DATA_ALLOC (dynamic_syminfo_offset, syminsz, extsyminfo,
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Elf_External_Syminfo *, "symbol information");
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dynamic_syminfo = (Elf_Internal_Syminfo *) malloc (syminsz);
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if (dynamic_syminfo == NULL)
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{
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error (_("Out of memory\n"));
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return 0;
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}
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dynamic_syminfo_nent = syminsz / sizeof (Elf_External_Syminfo);
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for (i = 0, syminfo = dynamic_syminfo; i < dynamic_syminfo_nent;
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++i, ++syminfo)
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{
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syminfo->si_boundto = BYTE_GET (extsyminfo[i].si_boundto);
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syminfo->si_flags = BYTE_GET (extsyminfo[i].si_flags);
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}
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free (extsyminfo);
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}
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}
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if (do_dynamic && dynamic_addr)
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printf (_("\nDynamic segment at offset 0x%x contains %d entries:\n"),
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dynamic_addr, dynamic_size);
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@ -2950,6 +3043,61 @@ process_symbol_table (file)
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return 1;
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}
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static int
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process_syminfo (file)
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FILE * file;
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{
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int i;
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if (dynamic_syminfo == NULL
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|| !do_dynamic)
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/* No syminfo, this is ok. */
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return 1;
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/* There better should be a dynamic symbol section. */
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if (dynamic_symbols == NULL || dynamic_strings == NULL)
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return 0;
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if (dynamic_addr)
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printf (_("\nDynamic info segment at offset 0x%x contains %d entries:\n"),
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dynamic_syminfo_offset, dynamic_syminfo_nent);
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printf (_(" Num: Name BoundTo Flags\n"));
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for (i = 0; i < dynamic_syminfo_nent; ++i)
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{
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unsigned short int flags = dynamic_syminfo[i].si_flags;
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printf ("%4d: %-35s ", i,
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dynamic_strings + dynamic_symbols[i].st_name);
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switch (dynamic_syminfo[i].si_boundto)
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{
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case SYMINFO_BT_SELF:
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fputs ("SELF ", stdout);
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break;
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case SYMINFO_BT_PARENT:
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fputs ("PARENT ", stdout);
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break;
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default:
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printf ("%-7d ", dynamic_syminfo[i].si_boundto);
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break;
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}
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if (flags & SYMINFO_FLG_DIRECT)
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printf (" DIRECT");
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if (flags & SYMINFO_FLG_PASSTHRU)
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printf (" PASSTHRU");
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if (flags & SYMINFO_FLG_COPY)
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printf (" COPY");
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if (flags & SYMINFO_FLG_LAZYLOAD)
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printf (" LAZYLOAD");
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puts ("");
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}
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return 1;
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}
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static int
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process_section_contents (file)
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FILE * file;
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@ -3116,14 +3264,14 @@ process_mips_specific (file)
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elib, Elf32_External_Lib *, "liblist");
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printf ("\nSection '.liblist' contains %d entries:\n", liblistno);
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fputs (" Library Time Stamp Checksum Version Flags\n",
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fputs (" Library Time Stamp Checksum Version Flags\n",
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stdout);
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for (cnt = 0; cnt < liblistno; ++cnt)
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{
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Elf32_Lib liblist;
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time_t time;
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char timebuf[17];
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char timebuf[20];
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liblist.l_name = BYTE_GET (elib[cnt].l_name);
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time = BYTE_GET (elib[cnt].l_time_stamp);
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@ -3131,7 +3279,7 @@ process_mips_specific (file)
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liblist.l_version = BYTE_GET (elib[cnt].l_version);
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liblist.l_flags = BYTE_GET (elib[cnt].l_flags);
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strftime (timebuf, 17, "%Y-%m-%dT%H:%M", gmtime (&time));
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strftime (timebuf, 20, "%Y-%m-%dT%H:%M:%S", gmtime (&time));
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printf ("%3d: %-20s %s %#10lx %-7ld %#lx\n", cnt,
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dynamic_strings + liblist.l_name, timebuf,
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@ -3438,6 +3586,8 @@ process_file (file_name)
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process_symbol_table (file);
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process_syminfo (file);
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process_version_sections (file);
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process_section_contents (file);
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@ -3469,6 +3619,12 @@ process_file (file_name)
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free (dynamic_symbols);
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dynamic_symbols = NULL;
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}
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if (dynamic_syminfo)
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{
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free (dynamic_syminfo);
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dynamic_syminfo = NULL;
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}
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}
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#ifdef SUPPORT_DISASSEMBLY
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