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Diffstat (limited to 'binutils/readelf.c')
-rw-r--r--binutils/readelf.c439
1 files changed, 237 insertions, 202 deletions
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 70d0c53..f49092f 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -438,7 +438,7 @@ section_index_real (const Filedata *filedata, unsigned int ndx)
&& ndx < filedata->file_header.e_shnum
&& ndx > 0);
}
-
+
#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
static inline bool
@@ -585,7 +585,7 @@ print_vma (uint64_t vma, print_mode mode)
if (is_32bit_elf)
return printf ("%08" PRIx64, vma);
return printf ("%016" PRIx64, vma);
-
+
case DEC_5:
if (vma <= 99999)
return printf ("%5" PRId64, vma);
@@ -800,7 +800,7 @@ print_symbol_name (signed int width, const char * symbol)
if (width_remaining < (nbytes * 2) + 2)
break;
-
+
putchar (is_utf8 ? '<' : '{');
printf ("0x");
for (i = 0; i < nbytes; i++)
@@ -811,14 +811,14 @@ print_symbol_name (signed int width, const char * symbol)
{
if (unicode_display == unicode_highlight && isatty (1))
printf ("\x1B[31;47m"); /* Red. */
-
+
switch (nbytes)
{
case 2:
if (width_remaining < 6)
break;
printf ("\\u%02x%02x",
- (bytes[0] & 0x1c) >> 2,
+ (bytes[0] & 0x1c) >> 2,
((bytes[0] & 0x03) << 6) | (bytes[1] & 0x3f));
break;
case 3:
@@ -835,7 +835,7 @@ print_symbol_name (signed int width, const char * symbol)
((bytes[0] & 0x07) << 6) | ((bytes[1] & 0x3c) >> 2),
((bytes[1] & 0x03) << 6) | ((bytes[2] & 0x3c) >> 2),
((bytes[2] & 0x03) << 6) | (bytes[3] & 0x3f));
-
+
break;
default:
/* URG. */
@@ -845,7 +845,7 @@ print_symbol_name (signed int width, const char * symbol)
if (unicode_display == unicode_highlight && isatty (1))
printf ("\033[0m"); /* Default colour. */
}
-
+
if (bytes[nbytes - 1] == 0)
break;
}
@@ -904,7 +904,7 @@ printable_string (const char * string, unsigned int max_len)
{
#define NUM_STRING_BUFS 5
#define MAX_STRING_LEN 256
-
+
static int string_buf_index = 0;
static char string_buf [NUM_STRING_BUFS][MAX_STRING_LEN + 1];
@@ -918,7 +918,7 @@ printable_string (const char * string, unsigned int max_len)
char c;
unsigned int remaining = MAX_STRING_LEN;
-
+
while ((c = * string ++) != 0)
{
if (ISCNTRL (c))
@@ -960,7 +960,7 @@ printable_string (const char * string, unsigned int max_len)
}
* buf = 0;
- return buf_start;
+ return buf_start;
}
/* Returns a pointer to a static buffer containing a
@@ -1793,7 +1793,7 @@ count_relr_relocations (Filedata * filedata,
nentries = section->sh_size / entsize;
if (nentries == 0)
return 0;
-
+
/* FIXME: This call to get_data duplicates one that follows in
dump_relr_relocations(). They could be combined into just
one call. */
@@ -1928,7 +1928,7 @@ dump_relr_relocations (Filedata * filedata,
if ((entry & 1) == 1)
{
uint64_t addr = where + (j * relr_entsize);
-
+
if (first)
{
print_relr_addr_and_sym (filedata, symtab, nsyms, strtab, addr);
@@ -1949,7 +1949,7 @@ dump_relr_relocations (Filedata * filedata,
free (relrs);
return true;
}
-
+
/* Display the contents of the relocation data found at the specified
offset. */
@@ -3534,7 +3534,7 @@ static char *
decode_ARM_machine_flags (char *out, unsigned e_flags)
{
unsigned eabi;
- bool unknown = false;
+ bool unknown_abi = false;
eabi = EF_ARM_EABI_VERSION (e_flags);
e_flags &= ~ EF_ARM_EABIMASK;
@@ -3558,7 +3558,7 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
default:
out = stpcpy (out, ", <unrecognized EABI>");
if (e_flags)
- unknown = true;
+ unknown_abi = true;
break;
case EF_ARM_EABI_VER1:
@@ -3578,7 +3578,7 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
break;
default:
- unknown = true;
+ unknown_abi = true;
break;
}
}
@@ -3609,7 +3609,7 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
break;
default:
- unknown = true;
+ unknown_abi = true;
break;
}
}
@@ -3640,7 +3640,7 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
break;
default:
- unknown = true;
+ unknown_abi = true;
break;
}
}
@@ -3675,7 +3675,7 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
break;
default:
- unknown = true;
+ unknown_abi = true;
break;
}
}
@@ -3730,13 +3730,13 @@ decode_ARM_machine_flags (char *out, unsigned e_flags)
break;
default:
- unknown = true;
+ unknown_abi = true;
break;
}
}
}
- if (unknown)
+ if (unknown_abi)
out = stpcpy (out,_(", <unknown>"));
return out;
}
@@ -5475,7 +5475,7 @@ get_os_specific_segment_type (Filedata * filedata, unsigned long p_type)
if (result != NULL)
return result;
-
+
switch (p_type)
{
case PT_GNU_EH_FRAME: return "GNU_EH_FRAME";
@@ -5552,7 +5552,7 @@ get_processor_specific_segment_type (Filedata * filedata, unsigned long p_type)
sprintf (buff, "LOPROC+%#lx", p_type - PT_LOPROC);
return buff;
}
-
+
static const char *
get_segment_type (Filedata * filedata, unsigned long p_type)
{
@@ -5971,7 +5971,7 @@ get_os_specific_section_type_name (Filedata * filedata, unsigned int sh_type)
case SHT_GNU_verdef: return "VERDEF";
case SHT_GNU_verneed: return "VERNEED";
case SHT_GNU_versym: return "VERSYM";
-
+
case SHT_LLVM_ODRTAB: return "LLVM_ODRTAB";
case SHT_LLVM_LINKER_OPTIONS: return "LLVM_LINKER_OPTIONS";
case SHT_LLVM_ADDRSIG: return "LLVM_ADDRSIG";
@@ -5990,10 +5990,10 @@ get_os_specific_section_type_name (Filedata * filedata, unsigned int sh_type)
case SHT_ANDROID_RELR: return "ANDROID_RELR";
case SHT_CHECKSUM: return "CHECKSUM";
-
+
/* FIXME: Are these correct ? If so, why do they not have #define's ? */
case 0x6ffffff0: return "VERSYM";
-
+
default:
break;
}
@@ -6216,7 +6216,7 @@ usage (FILE * stream)
fprintf (stream, _("\
-X --extra-sym-info Display extra information when showing symbols\n"));
fprintf (stream, _("\
- --no-extra-sym-info Do not display extra information when showing symbols (default)\n"));
+ --no-extra-sym-info Do not display extra information when showing symbols (default)\n"));
fprintf (stream, _("\
-n --notes Display the contents of note sections (if present)\n"));
fprintf (stream, _("\
@@ -6606,7 +6606,7 @@ parse_args (struct dump_data *dumpdata, int argc, char ** argv)
case OPTION_NO_EXTRA_SYM_INFO:
extra_sym_info = false;
break;
-
+
#ifdef SUPPORT_DISASSEMBLY
case 'i':
request_dump (dumpdata, DISASS_DUMP);
@@ -6766,7 +6766,7 @@ check_magic_number (Filedata * filedata, Elf_Internal_Ehdr * header)
FIXME: It is not clear if all four bytes are used as constant magic
valus by all compilers. It may be necessary to recode this function if
different tools use different length sequences. */
-
+
static struct
{
unsigned char magic[4];
@@ -6775,7 +6775,7 @@ check_magic_number (Filedata * filedata, Elf_Internal_Ehdr * header)
}
known_magic[] =
{
- { { 'B', 'C', 0xc0, 0xde },
+ { { 'B', 'C', 0xc0, 0xde },
N_("This is a LLVM bitcode file - try using llvm-bcanalyzer\n"),
N_("This is a LLVM bitcode file - try extracting and then using llvm-bcanalyzer\n")
},
@@ -14296,7 +14296,7 @@ print_symbol (Filedata * filedata,
printf ("%*s", 10 - printed, "");
}
}
-
+
/* Get the symbol's name. For section symbols without a
specific name use the (already computed) section name. */
if (ELF_ST_TYPE (psym->st_info) == STT_SECTION
@@ -16491,7 +16491,7 @@ uncompress_section_contents (bool is_zstd,
}
uncompressed_buffer = xmalloc (uncompressed_size);
-
+
if (is_zstd)
{
#ifdef HAVE_ZSTD
@@ -16551,7 +16551,7 @@ maybe_expand_or_relocate_section (Elf_Internal_Shdr * section,
{
uint64_t section_size = section->sh_size;
unsigned char * start = * start_ptr;
-
+
if (decompress_dumps)
{
uint64_t new_size = section_size;
@@ -17080,7 +17080,10 @@ dump_section_as_ctf (Elf_Internal_Shdr * section, Filedata * filedata)
printable_section_name (filedata, section));
while ((fp = ctf_archive_next (ctfa, &i, &name, 0, &err)) != NULL)
- dump_ctf_archive_member (fp, name, parent, member++);
+ {
+ dump_ctf_archive_member (fp, name, parent, member++);
+ ctf_dict_close (fp);
+ }
if (err != ECTF_NEXT_END)
{
dump_ctf_errs (NULL);
@@ -17776,13 +17779,17 @@ display_tag_value (signed int tag,
else if (tag & 1)
{
/* PR 17531 file: 027-19978-0.004. */
- size_t maxlen = (end - p) - 1;
+ size_t maxlen = end - p;
putchar ('"');
if (maxlen > 0)
{
+ maxlen -= 1; /* Remove \0 from the character count. */
print_symbol_name ((int) maxlen, (const char *) p);
- p += strnlen ((char *) p, maxlen) + 1;
+ size_t len = strnlen ((char *) p, maxlen);
+ if (len == maxlen && p[maxlen] != '\0')
+ printf (_("<corrupt string tag>"));
+ p += len + 1;
}
else
{
@@ -19268,199 +19275,188 @@ process_attributes (Filedata * filedata,
unsigned char * (* display_pub_attribute) (unsigned char *, const unsigned char * const),
unsigned char * (* display_proc_gnu_attribute) (unsigned char *, unsigned int, const unsigned char * const))
{
- Elf_Internal_Shdr * sect;
- unsigned i;
- bool res = true;
-
/* Find the section header so that we get the size. */
- for (i = 0, sect = filedata->section_headers;
- i < filedata->file_header.e_shnum;
- i++, sect++)
+ Elf_Internal_Shdr * sect = find_section_by_type (filedata, proc_type);
+ if (sect == NULL)
+ sect = find_section_by_type (filedata, SHT_GNU_ATTRIBUTES);
+
+ if (sect == NULL)
+ /* No section, exit without error. */
+ return true;
+
+ unsigned char * contents = (unsigned char *)
+ get_data (NULL, filedata, sect->sh_offset, 1, sect->sh_size, _("attributes"));
+ if (contents == NULL)
+ return false;
+
+ bool res = true;
+ unsigned char * p = contents;
+ /* The first character is the version of the attributes.
+ Currently only version 1, (aka 'A') is recognised here. */
+ if (*p != 'A')
{
- unsigned char * contents;
- unsigned char * p;
+ printf (_("Unknown attributes version '%c'(%d) - expecting 'A'\n"), *p, *p);
+ res = false;
+ goto free_data;
+ }
- if (sect->sh_type != proc_type && sect->sh_type != SHT_GNU_ATTRIBUTES)
- continue;
+ uint64_t section_len = sect->sh_size - 1;
+ p++;
+
+ while (section_len > 0)
+ {
+ uint64_t attr_len;
+ unsigned int namelen;
+ bool public_section;
+ bool gnu_section;
- contents = (unsigned char *) get_data (NULL, filedata, sect->sh_offset, 1,
- sect->sh_size, _("attributes"));
- if (contents == NULL)
+ if (section_len <= 4)
{
+ error (_("Tag section ends prematurely\n"));
res = false;
- continue;
+ break;
}
+ attr_len = byte_get (p, 4);
+ p += 4;
- p = contents;
- /* The first character is the version of the attributes.
- Currently only version 1, (aka 'A') is recognised here. */
- if (*p != 'A')
+ if (attr_len > section_len)
{
- printf (_("Unknown attributes version '%c'(%d) - expecting 'A'\n"), *p, *p);
+ error (_("Bad attribute length (%u > %u)\n"),
+ (unsigned) attr_len, (unsigned) section_len);
+ attr_len = section_len;
res = false;
}
- else
+ /* PR 17531: file: 001-101425-0.004 */
+ else if (attr_len < 5)
{
- uint64_t section_len;
+ error (_("Attribute length of %u is too small\n"), (unsigned) attr_len);
+ res = false;
+ break;
+ }
- section_len = sect->sh_size - 1;
- p++;
+ section_len -= attr_len;
+ attr_len -= 4;
- while (section_len > 0)
- {
- uint64_t attr_len;
- unsigned int namelen;
- bool public_section;
- bool gnu_section;
+ namelen = strnlen ((char *) p, attr_len) + 1;
+ if (namelen == 0 || namelen >= attr_len)
+ {
+ error (_("Corrupt attribute section name\n"));
+ res = false;
+ break;
+ }
- if (section_len <= 4)
- {
- error (_("Tag section ends prematurely\n"));
- res = false;
- break;
- }
- attr_len = byte_get (p, 4);
- p += 4;
+ printf (_("Attribute Section: "));
+ print_symbol_name (INT_MAX, (const char *) p);
+ putchar ('\n');
- if (attr_len > section_len)
- {
- error (_("Bad attribute length (%u > %u)\n"),
- (unsigned) attr_len, (unsigned) section_len);
- attr_len = section_len;
- res = false;
- }
- /* PR 17531: file: 001-101425-0.004 */
- else if (attr_len < 5)
- {
- error (_("Attribute length of %u is too small\n"), (unsigned) attr_len);
- res = false;
- break;
- }
+ if (public_name && streq ((char *) p, public_name))
+ public_section = true;
+ else
+ public_section = false;
- section_len -= attr_len;
- attr_len -= 4;
+ if (streq ((char *) p, "gnu"))
+ gnu_section = true;
+ else
+ gnu_section = false;
- namelen = strnlen ((char *) p, attr_len) + 1;
- if (namelen == 0 || namelen >= attr_len)
- {
- error (_("Corrupt attribute section name\n"));
- res = false;
- break;
- }
+ p += namelen;
+ attr_len -= namelen;
- printf (_("Attribute Section: "));
- print_symbol_name (INT_MAX, (const char *) p);
- putchar ('\n');
+ while (attr_len > 0 && p < contents + sect->sh_size)
+ {
+ int tag;
+ unsigned int val;
+ uint64_t size;
+ unsigned char * end;
- if (public_name && streq ((char *) p, public_name))
- public_section = true;
- else
- public_section = false;
+ /* PR binutils/17531: Safe handling of corrupt files. */
+ if (attr_len < 6)
+ {
+ error (_("Unused bytes at end of section\n"));
+ res = false;
+ section_len = 0;
+ break;
+ }
- if (streq ((char *) p, "gnu"))
- gnu_section = true;
- else
- gnu_section = false;
+ tag = *(p++);
+ size = byte_get (p, 4);
+ if (size > attr_len)
+ {
+ error (_("Bad subsection length (%u > %u)\n"),
+ (unsigned) size, (unsigned) attr_len);
+ res = false;
+ size = attr_len;
+ }
+ /* PR binutils/17531: Safe handling of corrupt files. */
+ if (size < 6)
+ {
+ error (_("Bad subsection length (%u < 6)\n"),
+ (unsigned) size);
+ res = false;
+ section_len = 0;
+ break;
+ }
- p += namelen;
- attr_len -= namelen;
+ attr_len -= size;
+ end = p + size - 1;
+ assert (end <= contents + sect->sh_size);
+ p += 4;
- while (attr_len > 0 && p < contents + sect->sh_size)
+ switch (tag)
+ {
+ case 1:
+ printf (_("File Attributes\n"));
+ break;
+ case 2:
+ printf (_("Section Attributes:"));
+ goto do_numlist;
+ case 3:
+ printf (_("Symbol Attributes:"));
+ /* Fall through. */
+ do_numlist:
+ for (;;)
{
- int tag;
- unsigned int val;
- uint64_t size;
- unsigned char * end;
-
- /* PR binutils/17531: Safe handling of corrupt files. */
- if (attr_len < 6)
- {
- error (_("Unused bytes at end of section\n"));
- res = false;
- section_len = 0;
- break;
- }
-
- tag = *(p++);
- size = byte_get (p, 4);
- if (size > attr_len)
- {
- error (_("Bad subsection length (%u > %u)\n"),
- (unsigned) size, (unsigned) attr_len);
- res = false;
- size = attr_len;
- }
- /* PR binutils/17531: Safe handling of corrupt files. */
- if (size < 6)
- {
- error (_("Bad subsection length (%u < 6)\n"),
- (unsigned) size);
- res = false;
- section_len = 0;
- break;
- }
-
- attr_len -= size;
- end = p + size - 1;
- assert (end <= contents + sect->sh_size);
- p += 4;
-
- switch (tag)
- {
- case 1:
- printf (_("File Attributes\n"));
- break;
- case 2:
- printf (_("Section Attributes:"));
- goto do_numlist;
- case 3:
- printf (_("Symbol Attributes:"));
- /* Fall through. */
- do_numlist:
- for (;;)
- {
- READ_ULEB (val, p, end);
- if (val == 0)
- break;
- printf (" %d", val);
- }
- printf ("\n");
- break;
- default:
- printf (_("Unknown tag: %d\n"), tag);
- public_section = false;
- break;
- }
-
- if (public_section && display_pub_attribute != NULL)
- {
- while (p < end)
- p = display_pub_attribute (p, end);
- assert (p == end);
- }
- else if (gnu_section && display_proc_gnu_attribute != NULL)
- {
- while (p < end)
- p = display_gnu_attribute (p,
- display_proc_gnu_attribute,
- end);
- assert (p == end);
- }
- else if (p < end)
- {
- printf (_(" Unknown attribute:\n"));
- display_raw_attribute (p, end);
- p = end;
- }
- else
- attr_len = 0;
+ READ_ULEB (val, p, end);
+ if (val == 0)
+ break;
+ printf (" %d", val);
}
+ printf ("\n");
+ break;
+ default:
+ printf (_("Unknown tag: %d\n"), tag);
+ public_section = false;
+ break;
}
- }
- free (contents);
+ if (public_section && display_pub_attribute != NULL)
+ {
+ while (p < end)
+ p = display_pub_attribute (p, end);
+ assert (p == end);
+ }
+ else if (gnu_section && display_proc_gnu_attribute != NULL)
+ {
+ while (p < end)
+ p = display_gnu_attribute (p,
+ display_proc_gnu_attribute,
+ end);
+ assert (p == end);
+ }
+ else if (p < end)
+ {
+ printf (_(" Unknown attribute:\n"));
+ display_raw_attribute (p, end);
+ p = end;
+ }
+ else
+ attr_len = 0;
+ }
}
+free_data:
+ free (contents);
+
return res;
}
@@ -21296,6 +21292,33 @@ decode_aarch64_feature_1_and (unsigned int bitmask)
}
static void
+decode_riscv_feature_1_and (unsigned int bitmask)
+{
+ while (bitmask)
+ {
+ unsigned int bit = bitmask & (- bitmask);
+
+ bitmask &= ~ bit;
+ switch (bit)
+ {
+ case GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED:
+ printf ("CFI_LP_UNLABELED");
+ break;
+
+ case GNU_PROPERTY_RISCV_FEATURE_1_CFI_SS:
+ printf ("CFI_SS");
+ break;
+
+ default:
+ printf (_("<unknown: %x>"), bit);
+ break;
+ }
+ if (bitmask)
+ printf (", ");
+ }
+}
+
+static void
decode_1_needed (unsigned int bitmask)
{
while (bitmask)
@@ -21485,6 +21508,18 @@ print_gnu_property_note (Filedata * filedata, Elf_Internal_Note * pnote)
goto next;
}
}
+ else if (filedata->file_header.e_machine == EM_RISCV)
+ {
+ if (type == GNU_PROPERTY_RISCV_FEATURE_1_AND)
+ {
+ printf ("RISC-V AND feature: ");
+ if (datasz != 4)
+ printf (_("<corrupt length: %#x> "), datasz);
+ else
+ decode_riscv_feature_1_and (byte_get (ptr, 4));
+ goto next;
+ }
+ }
}
else
{
@@ -23719,8 +23754,8 @@ might_need_separate_debug_info (Filedata * filedata)
deliberate user action. */
if (DEFAULT_FOR_FOLLOW_LINKS == 0 && do_follow_links)
return true;
-
- if (process_links || do_syms || do_unwind
+
+ if (process_links || do_syms || do_unwind
|| dump_any_debugging || do_dump || do_debugging)
return true;
generated by cgit v1.1 at 2025-07-01 23:37:53 +0000