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[PATCH] Support prelink sections and dynamic tags in readelf
- From: Jakub Jelinek <jakub at redhat dot com>
- To: binutils at sources dot redhat dot com
- Date: Tue, 2 Jul 2002 13:15:30 +0200
- Subject: [PATCH] Support prelink sections and dynamic tags in readelf
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
Hi!
The following tag adds printing of SHT_GNU_LIBLIST sections
and handles prelink dynamic tags.
Ok to commit?
2002-07-02 Jakub Jelinek <jakub@redhat.com>
* readelf.c (get_dynamic_type): Handle DT_GNU_PRELINKED,
DT_GNU_CONFLICT* and DT_GNU_LIBLISZ*.
(get_section_type_name): Handle SHT_GNU_LIBLIST.
(process_dynamic_segment): Handle DT_GNU_CONFLICTSZ,
DT_GNU_LIBLISTSZ and DT_GNU_PRELINKED.
(process_gnu_liblist): New.
(process_file): Call it.
* elf/common.h (SHT_GNU_LIBLIST, DT_GNU_PRELINKED,
DT_GNU_CONFLICT*, DT_GNU_LIBLIST*): Define.
--- binutils/readelf.c.jj Mon Jul 1 14:28:15 2002
+++ binutils/readelf.c Tue Jul 2 13:25:14 2002
@@ -263,6 +263,7 @@ static int process_corefile_note_segm
static int process_corefile_note_segments PARAMS ((FILE *));
static int process_corefile_contents PARAMS ((FILE *));
static int process_arch_specific PARAMS ((FILE *));
+static int process_gnu_liblist PARAMS ((FILE *));
typedef int Elf32_Word;
@@ -524,7 +525,7 @@ print_vma (vma, mode)
/* Display a symbol on stdout. If do_wide is not true then
format the symbol to be at most WIDTH characters,
- truhncating as necessary. If WIDTH is negative then
+ truncating as necessary. If WIDTH is negative then
format the string to be exactly - WIDTH characters,
truncating or padding as necessary. */
@@ -1383,6 +1384,12 @@ get_dynamic_type (type)
case DT_USED: return "USED";
case DT_FILTER: return "FILTER";
+ case DT_GNU_PRELINKED: return "GNU_PRELINKED";
+ case DT_GNU_CONFLICT: return "GNU_CONFLICT";
+ case DT_GNU_CONFLICTSZ: return "GNU_CONFLICTSZ";
+ case DT_GNU_LIBLIST: return "GNU_LIBLIST";
+ case DT_GNU_LIBLISTSZ: return "GNU_LIBLISTSZ";
+
default:
if ((type >= DT_LOPROC) && (type <= DT_HIPROC))
{
@@ -2180,6 +2187,7 @@ get_section_type_name (sh_type)
case 0x6ffffffc: return "VERDEF";
case 0x7ffffffd: return "AUXILIARY";
case 0x7fffffff: return "FILTER";
+ case SHT_GNU_LIBLIST: return "GNU_LIBLIST";
default:
if ((sh_type >= SHT_LOPROC) && (sh_type <= SHT_HIPROC))
@@ -4741,6 +4749,8 @@ process_dynamic_segment (file)
case DT_MOVESZ :
case DT_INIT_ARRAYSZ:
case DT_FINI_ARRAYSZ:
+ case DT_GNU_CONFLICTSZ:
+ case DT_GNU_LIBLISTSZ:
if (do_dynamic)
{
print_vma (entry->d_un.d_val, UNSIGNED);
@@ -4789,6 +4799,20 @@ process_dynamic_segment (file)
/* The value of this entry is ignored. */
break;
+ case DT_GNU_PRELINKED:
+ if (do_dynamic)
+ {
+ struct tm * tmp;
+ time_t time = entry->d_un.d_val;
+
+ tmp = gmtime (&time);
+ printf ("%04u-%02u-%02uT%02u:%02u:%02u\n",
+ tmp->tm_year + 1900, tmp->tm_mon + 1, tmp->tm_mday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+
+ }
+ break;
+
default:
if ((entry->d_tag >= DT_VERSYM) && (entry->d_tag <= DT_VERNEEDNUM))
version_info [DT_VERSIONTAGIDX (entry->d_tag)] =
@@ -9355,6 +9379,86 @@ process_mips_specific (file)
return 1;
}
+static int
+process_gnu_liblist (file)
+ FILE * file;
+{
+ Elf_Internal_Shdr * section, * string_sec;
+ Elf32_External_Lib * elib;
+ char * strtab;
+ size_t cnt;
+ unsigned i;
+
+ if (! do_arch)
+ return 0;
+
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i++, section ++)
+ {
+ switch (section->sh_type)
+ {
+ case SHT_GNU_LIBLIST:
+ elib = ((Elf32_External_Lib *)
+ get_data (NULL, file, section->sh_offset, section->sh_size,
+ _("liblist")));
+
+ if (elib == NULL)
+ break;
+ string_sec = SECTION_HEADER (section->sh_link);
+
+ strtab = (char *) get_data (NULL, file, string_sec->sh_offset,
+ string_sec->sh_size,
+ _("liblist string table"));
+
+ if (strtab == NULL
+ || section->sh_entsize != sizeof (Elf32_External_Lib))
+ {
+ free (elib);
+ break;
+ }
+
+ printf (_("\nLibrary list section '%s' contains %lu entries:\n"),
+ SECTION_NAME (section),
+ (long) (section->sh_size / sizeof (Elf32_External_Lib)));
+
+ puts (" Library Time Stamp Checksum Version Flags");
+
+ for (cnt = 0; cnt < section->sh_size / sizeof (Elf32_External_Lib);
+ ++cnt)
+ {
+ Elf32_Lib liblist;
+ time_t time;
+ char timebuf[20];
+ struct tm * tmp;
+
+ liblist.l_name = BYTE_GET (elib[cnt].l_name);
+ time = BYTE_GET (elib[cnt].l_time_stamp);
+ liblist.l_checksum = BYTE_GET (elib[cnt].l_checksum);
+ liblist.l_version = BYTE_GET (elib[cnt].l_version);
+ liblist.l_flags = BYTE_GET (elib[cnt].l_flags);
+
+ tmp = gmtime (&time);
+ sprintf (timebuf, "%04u-%02u-%02uT%02u:%02u:%02u",
+ tmp->tm_year + 1900, tmp->tm_mon + 1, tmp->tm_mday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+
+ printf ("%3lu: ", (unsigned long) cnt);
+ if (do_wide)
+ printf ("%-20s", strtab + liblist.l_name);
+ else
+ printf ("%-20.20s", strtab + liblist.l_name);
+ printf (" %s %#010lx %-7ld %-7ld\n", timebuf, liblist.l_checksum,
+ liblist.l_version, liblist.l_flags);
+ }
+
+ free (elib);
+ }
+ }
+
+ return 1;
+}
+
static const char *
get_note_type (e_type)
unsigned e_type;
@@ -9802,6 +9906,8 @@ process_file (file_name)
process_corefile_contents (file);
+ process_gnu_liblist (file);
+
process_arch_specific (file);
fclose (file);
--- include/elf/common.h.jj Mon Jul 1 14:28:20 2002
+++ include/elf/common.h Tue Jul 2 12:02:50 2002
@@ -303,6 +303,8 @@ Foundation, Inc., 59 Temple Place - Suit
#define SHT_LOOS 0x60000000 /* First of OS specific semantics */
#define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */
+#define SHT_GNU_LIBLIST 0x6ffffff7 /* List of prelink dependencies */
+
/* The next three section types are defined by Solaris, and are named
SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU*
versions. */
@@ -520,6 +522,9 @@ Foundation, Inc., 59 Temple Place - Suit
OS specific values. This is a deliberate special case and we
maintain it for backwards compatability. */
#define DT_VALRNGLO 0x6ffffd00
+#define DT_GNU_PRELINKED 0x6ffffdf5
+#define DT_GNU_CONFLICTSZ 0x6ffffdf6
+#define DT_GNU_LIBLISTSZ 0x6ffffdf7
#define DT_CHECKSUM 0x6ffffdf8
#define DT_PLTPADSZ 0x6ffffdf9
#define DT_MOVEENT 0x6ffffdfa
@@ -531,6 +536,8 @@ Foundation, Inc., 59 Temple Place - Suit
#define DT_VALRNGHI 0x6ffffdff
#define DT_ADDRRNGLO 0x6ffffe00
+#define DT_GNU_CONFLICT 0x6ffffef8
+#define DT_GNU_LIBLIST 0x6ffffef9
#define DT_CONFIG 0x6ffffefa
#define DT_DEPAUDIT 0x6ffffefb
#define DT_AUDIT 0x6ffffefc
Jakub