diff --git a/SOURCES/binutils.unicode.patch b/SOURCES/binutils.unicode.patch
new file mode 100644
index 0000000..bbb87c1
--- /dev/null
+++ b/SOURCES/binutils.unicode.patch
@@ -0,0 +1,1932 @@
+diff -rup binutils.orig/binutils/NEWS binutils-2.30/binutils/NEWS
+--- binutils.orig/binutils/NEWS 2021-10-20 12:39:41.715008273 +0100
++++ binutils-2.30/binutils/NEWS 2021-10-20 12:41:30.895327968 +0100
+@@ -1,5 +1,14 @@
+ -*- text -*-
+
++* Tools which display names or strings (readelf, strings, nm, objdump)
++ have a new command line option which controls how unicode characters are
++ handled. By default they are treated as normal for the tool. Using
++ --unicode=locale will display them according to the current locale.
++ Using --unicode=hex will display them as hex byte values, whilst
++ --unicode=escape will display them as escape sequences. In addition
++ using --unicode=highlight will display them as unicode escape sequences
++ highlighted in red (if supported by the output device).
++
+ * Add support for disassembling netronome Flow Processor (NFP) firmware files.
+
+ Changes in 2.30:
+diff -rup binutils.orig/binutils/doc/binutils.texi binutils-2.30/binutils/doc/binutils.texi
+--- binutils.orig/binutils/doc/binutils.texi 2021-10-20 12:39:41.701008360 +0100
++++ binutils-2.30/binutils/doc/binutils.texi 2021-10-20 13:00:11.801327501 +0100
+@@ -762,6 +762,7 @@ nm [@option{-A}|@option{-o}|@option{--pr
+ [@option{-D}|@option{--dynamic}] [@option{-f}@var{format}|@option{--format=}@var{format}]
+ [@option{-g}|@option{--extern-only}] [@option{-h}|@option{--help}]
+ [@option{-l}|@option{--line-numbers}] [@option{--inlines}]
++ [@option{-U} @var{method}] [@option{--unicode=}@var{method}]
+ [@option{-n}|@option{-v}|@option{--numeric-sort}]
+ [@option{-P}|@option{--portability}] [@option{-p}|@option{--no-sort}]
+ [@option{-r}|@option{--reverse-sort}] [@option{-S}|@option{--print-size}]
+@@ -1026,6 +1027,21 @@ Use @var{radix} as the radix for printin
+ @cindex undefined symbols
+ Display only undefined symbols (those external to each object file).
+
++@item -U @var{[d|i|l|e|x|h]}
++@itemx --unicode=@var{[default|invalid|locale|escape|hex|highlight]}
++Controls the display of UTF-8 encoded mulibyte characters in strings.
++The default (@option{--unicode=default}) is to give them no special
++treatment. The @option{--unicode=locale} option displays the sequence
++in the current locale, which may or may not support them. The options
++@option{--unicode=hex} and @option{--unicode=invalid} display them as
++hex byte sequences enclosed by either angle brackets or curly braces.
++
++The @option{--unicode=escape} option displays them as escape sequences
++(@var{\uxxxx}) and the @option{--unicode=highlight} option displays
++them as escape sequences highlighted in red (if supported by the
++output device). The colouring is intended to draw attention to the
++presence of unicode sequences where they might not be expected.
++
+ @item -V
+ @itemx --version
+ Show the version number of @command{nm} and exit.
+@@ -2093,6 +2109,7 @@ objdump [@option{-a}|@option{--archive-h
+ [@option{--prefix=}@var{prefix}]
+ [@option{--prefix-strip=}@var{level}]
+ [@option{--insn-width=}@var{width}]
++ [@option{-U} @var{method}] [@option{--unicode=}@var{method}]
+ [@option{-V}|@option{--version}]
+ [@option{-H}|@option{--help}]
+ @var{objfile}@dots{}
+@@ -2697,6 +2714,21 @@ When displaying symbols include those wh
+ special in some way and which would not normally be of interest to the
+ user.
+
++@item -U @var{[d|i|l|e|x|h]}
++@itemx --unicode=@var{[default|invalid|locale|escape|hex|highlight]}
++Controls the display of UTF-8 encoded mulibyte characters in strings.
++The default (@option{--unicode=default}) is to give them no special
++treatment. The @option{--unicode=locale} option displays the sequence
++in the current locale, which may or may not support them. The options
++@option{--unicode=hex} and @option{--unicode=invalid} display them as
++hex byte sequences enclosed by either angle brackets or curly braces.
++
++The @option{--unicode=escape} option displays them as escape sequences
++(@var{\uxxxx}) and the @option{--unicode=highlight} option displays
++them as escape sequences highlighted in red (if supported by the
++output device). The colouring is intended to draw attention to the
++presence of unicode sequences where they might not be expected.
++
+ @item -V
+ @itemx --version
+ Print the version number of @command{objdump} and exit.
+@@ -2952,6 +2984,7 @@ strings [@option{-afovV}] [@option{-}@va
+ [@option{-n} @var{min-len}] [@option{--bytes=}@var{min-len}]
+ [@option{-t} @var{radix}] [@option{--radix=}@var{radix}]
+ [@option{-e} @var{encoding}] [@option{--encoding=}@var{encoding}]
++ [@option{-U} @var{method}] [@option{--unicode=}@var{method}]
+ [@option{-}] [@option{--all}] [@option{--print-file-name}]
+ [@option{-T} @var{bfdname}] [@option{--target=}@var{bfdname}]
+ [@option{-w}] [@option{--include-all-whitespace}]
+@@ -3043,6 +3076,28 @@ single-8-bit-byte characters, @samp{b} =
+ littleendian. Useful for finding wide character strings. (@samp{l}
+ and @samp{b} apply to, for example, Unicode UTF-16/UCS-2 encodings).
+
++@item -U @var{[d|i|l|e|x|h]}
++@itemx --unicode=@var{[default|invalid|locale|escape|hex|highlight]}
++Controls the display of UTF-8 encoded mulibyte characters in strings.
++The default (@option{--unicode=default}) is to give them no special
++treatment, and instead rely upon the setting of the
++@option{--encoding} option. The other values for this option
++automatically enable @option{--encoding=S}.
++
++The @option{--unicode=invalid} option treats them as non-graphic
++characters and hence not part of a valid string. All the remaining
++options treat them as valid string characters.
++
++The @option{--unicode=locale} option displays them in the current
++locale, which may or may not support UTF-8 encoding. The
++@option{--unicode=hex} option displays them as hex byte sequences
++enclosed between @var{<>} characters. The @option{--unicode=escape}
++option displays them as escape sequences (@var{\uxxxx}) and the
++@option{--unicode=highlight} option displays them as escape sequences
++highlighted in red (if supported by the output device). The colouring
++is intended to draw attention to the presence of unicode sequences
++where they might not be expected.
++
+ @item -T @var{bfdname}
+ @itemx --target=@var{bfdname}
+ @cindex object code format
+@@ -4603,6 +4658,7 @@ readelf [@option{-a}|@option{--all}]
+ [@option{-v}|@option{--version}]
+ [@option{-W}|@option{--wide}]
+ [@option{-H}|@option{--help}]
++ [@option{-U} @var{method}|@option{--unicode=}@var{method}]
+ @var{elffile}@dots{}
+ @c man end
+ @end smallexample
+@@ -4692,6 +4748,28 @@ Displays the entries in dynamic symbol t
+ has one. The output format is the same as the format used by the
+ @option{--syms} option.
+
++@item -U @var{[d|i|l|e|x|h]}
++@itemx --unicode=[default|invalid|locale|escape|hex|highlight]
++Controls the display of non-ASCII characters in identifier names.
++The default (@option{--unicode=locale} or @option{--unicode=default}) is
++to treat them as multibyte characters and display them in the current
++locale. All other versions of this option treat the bytes as UTF-8
++encoded values and attempt to interpret them. If they cannot be
++interpreted or if the @option{--unicode=invalid} option is used then
++they are displayed as a sequence of hex bytes, encloses in curly
++parethesis characters.
++
++Using the @option{--unicode=escape} option will display the characters
++as as unicode escape sequences (@var{\uxxxx}). Using the
++@option{--unicode=hex} will display the characters as hex byte
++sequences enclosed between angle brackets.
++
++Using the @option{--unicode=highlight} will display the characters as
++unicode escape sequences but it will also highlighted them in red,
++assuming that colouring is supported by the output device. The
++colouring is intended to draw attention to the presence of unicode
++sequences when they might not be expected.
++
+ @item -e
+ @itemx --headers
+ Display all the headers in the file. Equivalent to @option{-h -l -S}.
+diff -rup binutils.orig/binutils/nm.c binutils-2.30/binutils/nm.c
+--- binutils.orig/binutils/nm.c 2021-10-20 12:39:41.681008485 +0100
++++ binutils-2.30/binutils/nm.c 2021-10-20 12:52:26.731237376 +0100
+@@ -38,6 +38,11 @@
+ #include "bucomm.h"
+ #include "plugin-api.h"
+ #include "plugin.h"
++#include "safe-ctype.h"
++
++#ifndef streq
++#define streq(a,b) (strcmp ((a),(b)) == 0)
++#endif
+
+ /* When sorting by size, we use this structure to hold the size and a
+ pointer to the minisymbol. */
+@@ -194,6 +199,18 @@ static const char *plugin_target = NULL;
+ static bfd *lineno_cache_bfd;
+ static bfd *lineno_cache_rel_bfd;
+
++typedef enum unicode_display_type
++{
++ unicode_default = 0,
++ unicode_locale,
++ unicode_escape,
++ unicode_hex,
++ unicode_highlight,
++ unicode_invalid
++} unicode_display_type;
++
++static unicode_display_type unicode_display = unicode_default;
++
+ #define OPTION_TARGET 200
+ #define OPTION_PLUGIN (OPTION_TARGET + 1)
+ #define OPTION_SIZE_SORT (OPTION_PLUGIN + 1)
+@@ -224,6 +241,7 @@ static struct option long_options[] =
+ {"target", required_argument, 0, OPTION_TARGET},
+ {"defined-only", no_argument, &defined_only, 1},
+ {"undefined-only", no_argument, &undefined_only, 1},
++ {"unicode", required_argument, NULL, 'U'},
+ {"version", no_argument, &show_version, 1},
+ {"with-symbol-versions", no_argument, &with_symbol_versions, 1},
+ {0, no_argument, 0, 0}
+@@ -271,6 +289,8 @@ usage (FILE *stream, int status)
+ -t, --radix=RADIX Use RADIX for printing symbol values\n\
+ --target=BFDNAME Specify the target object format as BFDNAME\n\
+ -u, --undefined-only Display only undefined symbols\n\
++ -U {d|s|i|x|e|h} Specify how to treat UTF-8 encoded unicode characters\n\
++ --unicode={default|show|invalid|hex|escape|highlight}\n\
+ --with-symbol-versions Display version strings after symbol names\n\
+ -X 32_64 (ignored)\n\
+ @FILE Read options from FILE\n\
+@@ -399,6 +419,189 @@ get_coff_symbol_type (const struct inter
+ return bufp;
+ }
+
++/* Convert a potential UTF-8 encoded sequence in IN into characters in OUT.
++ The conversion format is controlled by the unicode_display variable.
++ Returns the number of characters added to OUT.
++ Returns the number of bytes consumed from IN in CONSUMED.
++ Always consumes at least one byte and displays at least one character. */
++
++static unsigned int
++display_utf8 (const unsigned char * in, char * out, unsigned int * consumed)
++{
++ char * orig_out = out;
++ unsigned int nchars = 0;
++
++ if (unicode_display == unicode_default)
++ goto invalid;
++
++ if (in[0] < 0xc0)
++ goto invalid;
++
++ if ((in[1] & 0xc0) != 0x80)
++ goto invalid;
++
++ if ((in[0] & 0x20) == 0)
++ {
++ nchars = 2;
++ goto valid;
++ }
++
++ if ((in[2] & 0xc0) != 0x80)
++ goto invalid;
++
++ if ((in[0] & 0x10) == 0)
++ {
++ nchars = 3;
++ goto valid;
++ }
++
++ if ((in[3] & 0xc0) != 0x80)
++ goto invalid;
++
++ nchars = 4;
++
++ valid:
++ switch (unicode_display)
++ {
++ case unicode_locale:
++ /* Copy the bytes into the output buffer as is. */
++ memcpy (out, in, nchars);
++ out += nchars;
++ break;
++
++ case unicode_invalid:
++ case unicode_hex:
++ {
++ unsigned int j;
++
++ out += sprintf (out, "%c", unicode_display == unicode_hex ? '<' : '{');
++ for (j = 0; j < nchars; j++)
++ out += sprintf (out, "%02x", in [j]);
++ out += sprintf (out, "%c", unicode_display == unicode_hex ? '>' : '}');
++ }
++ break;
++
++ case unicode_highlight:
++ if (isatty (1))
++ out += sprintf (out, "\x1B[31;47m"); /* Red. */
++ /* Fall through. */
++ case unicode_escape:
++ switch (nchars)
++ {
++ case 2:
++ out += sprintf (out, "\\u%02x%02x",
++ ((in[0] & 0x1c) >> 2),
++ ((in[0] & 0x03) << 6) | (in[1] & 0x3f));
++ break;
++
++ case 3:
++ out += sprintf (out, "\\u%02x%02x",
++ ((in[0] & 0x0f) << 4) | ((in[1] & 0x3c) >> 2),
++ ((in[1] & 0x03) << 6) | ((in[2] & 0x3f)));
++ break;
++
++ case 4:
++ out += sprintf (out, "\\u%02x%02x%02x",
++ ((in[0] & 0x07) << 6) | ((in[1] & 0x3c) >> 2),
++ ((in[1] & 0x03) << 6) | ((in[2] & 0x3c) >> 2),
++ ((in[2] & 0x03) << 6) | ((in[3] & 0x3f)));
++ break;
++ default:
++ /* URG. */
++ break;
++ }
++
++ if (unicode_display == unicode_highlight && isatty (1))
++ out += sprintf (out, "\033[0m"); /* Default colour. */
++ break;
++
++ default:
++ /* URG */
++ break;
++ }
++
++ * consumed = nchars;
++ return out - orig_out;
++
++ invalid:
++ /* Not a valid UTF-8 sequence. */
++ *out = *in;
++ * consumed = 1;
++ return 1;
++}
++
++/* Convert any UTF-8 encoded characters in NAME into the form specified by
++ unicode_display. Also converts control characters. Returns a static
++ buffer if conversion was necessary.
++ Code stolen from objdump.c:sanitize_string(). */
++
++static const char *
++convert_utf8 (const char * in)
++{
++ static char * buffer = NULL;
++ static size_t buffer_len = 0;
++ const char * original = in;
++ char * out;
++
++ /* Paranoia. */
++ if (in == NULL)
++ return "";
++
++ /* See if any conversion is necessary.
++ In the majority of cases it will not be needed. */
++ do
++ {
++ unsigned char c = *in++;
++
++ if (c == 0)
++ return original;
++
++ if (ISCNTRL (c))
++ break;
++
++ if (unicode_display != unicode_default && c >= 0xc0)
++ break;
++ }
++ while (1);
++
++ /* Copy the input, translating as needed. */
++ in = original;
++ if (buffer_len < (strlen (in) * 9))
++ {
++ free ((void *) buffer);
++ buffer_len = strlen (in) * 9;
++ buffer = xmalloc (buffer_len + 1);
++ }
++
++ out = buffer;
++ do
++ {
++ unsigned char c = *in++;
++
++ if (c == 0)
++ break;
++
++ if (ISCNTRL (c))
++ {
++ *out++ = '^';
++ *out++ = c + 0x40;
++ }
++ else if (unicode_display != unicode_default && c >= 0xc0)
++ {
++ unsigned int num_consumed;
++
++ out += display_utf8 ((const unsigned char *)(in - 1), out, & num_consumed);
++ in += num_consumed - 1;
++ }
++ else
++ *out++ = c;
++ }
++ while (1);
++
++ *out = 0;
++ return buffer;
++}
++
+ /* Print symbol name NAME, read from ABFD, with printf format FORM,
+ demangling it if requested. */
+
+@@ -417,6 +618,9 @@ print_symname (const char *form, const c
+ }
+ }
+
++ if (unicode_display != unicode_default)
++ name = convert_utf8 (name);
++
+ printf (form, name);
+ }
+
+@@ -1657,7 +1861,7 @@ main (int argc, char **argv)
+ bfd_init ();
+ set_default_bfd_target ();
+
+- while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uvVvX:",
++ while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uU:vVvX:",
+ long_options, (int *) 0)) != EOF)
+ {
+ switch (c)
+@@ -1738,6 +1942,24 @@ main (int argc, char **argv)
+ case 'u':
+ undefined_only = 1;
+ break;
++
++ case 'U':
++ if (streq (optarg, "default") || streq (optarg, "d"))
++ unicode_display = unicode_default;
++ else if (streq (optarg, "locale") || streq (optarg, "l"))
++ unicode_display = unicode_locale;
++ else if (streq (optarg, "escape") || streq (optarg, "e"))
++ unicode_display = unicode_escape;
++ else if (streq (optarg, "invalid") || streq (optarg, "i"))
++ unicode_display = unicode_invalid;
++ else if (streq (optarg, "hex") || streq (optarg, "x"))
++ unicode_display = unicode_hex;
++ else if (streq (optarg, "highlight") || streq (optarg, "h"))
++ unicode_display = unicode_highlight;
++ else
++ fatal (_("invalid argument to -U/--unicode: %s"), optarg);
++ break;
++
+ case 'V':
+ show_version = 1;
+ break;
+diff -rup binutils.orig/binutils/objdump.c binutils-2.30/binutils/objdump.c
+--- binutils.orig/binutils/objdump.c 2021-10-20 12:39:41.677008510 +0100
++++ binutils-2.30/binutils/objdump.c 2021-10-20 13:24:11.009293189 +0100
+@@ -192,6 +192,18 @@ static const struct objdump_private_desc
+ OBJDUMP_PRIVATE_VECTORS
+ NULL
+ };
++
++typedef enum unicode_display_type
++{
++ unicode_default = 0,
++ unicode_locale,
++ unicode_escape,
++ unicode_hex,
++ unicode_highlight,
++ unicode_invalid
++} unicode_display_type;
++
++static unicode_display_type unicode_display = unicode_default;
+
+ static void usage (FILE *, int) ATTRIBUTE_NORETURN;
+ static void
+@@ -225,6 +237,9 @@ usage (FILE *stream, int status)
+ -r, --reloc Display the relocation entries in the file\n\
+ -R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
+ @<file> Read options from <file>\n\
++ -U[d|l|i|x|e|h] Controls the display of UTF-8 unicode characters\n\
++ --unicode=[default|locale|invalid|hex|escape|highlight]\n"));
++ fprintf (stream, _("\
+ -v, --version Display this program's version number\n\
+ -i, --info List object formats and architectures supported\n\
+ -H, --help Display this information\n\
+@@ -343,6 +358,7 @@ static struct option long_options[]=
+ {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
+ {"syms", no_argument, NULL, 't'},
+ {"target", required_argument, NULL, 'b'},
++ {"unicode", required_argument, NULL, 'U'},
+ {"version", no_argument, NULL, 'V'},
+ {"wide", no_argument, NULL, 'w'},
+ {"prefix", required_argument, NULL, OPTION_PREFIX},
+@@ -362,6 +378,191 @@ nonfatal (const char *msg)
+ exit_status = 1;
+ }
+
++/* Convert a potential UTF-8 encoded sequence in IN into characters in OUT.
++ The conversion format is controlled by the unicode_display variable.
++ Returns the number of characters added to OUT.
++ Returns the number of bytes consumed from IN in CONSUMED.
++ Always consumes at least one byte and displays at least one character. */
++
++static unsigned int
++display_utf8 (const unsigned char * in, char * out, unsigned int * consumed)
++{
++ char * orig_out = out;
++ unsigned int nchars = 0;
++
++ if (unicode_display == unicode_default)
++ goto invalid;
++
++ if (in[0] < 0xc0)
++ goto invalid;
++
++ if ((in[1] & 0xc0) != 0x80)
++ goto invalid;
++
++ if ((in[0] & 0x20) == 0)
++ {
++ nchars = 2;
++ goto valid;
++ }
++
++ if ((in[2] & 0xc0) != 0x80)
++ goto invalid;
++
++ if ((in[0] & 0x10) == 0)
++ {
++ nchars = 3;
++ goto valid;
++ }
++
++ if ((in[3] & 0xc0) != 0x80)
++ goto invalid;
++
++ nchars = 4;
++
++ valid:
++ switch (unicode_display)
++ {
++ case unicode_locale:
++ /* Copy the bytes into the output buffer as is. */
++ memcpy (out, in, nchars);
++ out += nchars;
++ break;
++
++ case unicode_invalid:
++ case unicode_hex:
++ {
++ unsigned int j;
++
++ out += sprintf (out, "%c", unicode_display == unicode_hex ? '<' : '{');
++ for (j = 0; j < nchars; j++)
++ out += sprintf (out, "%02x", in [j]);
++ out += sprintf (out, "%c", unicode_display == unicode_hex ? '>' : '}');
++ }
++ break;
++
++ case unicode_highlight:
++ if (isatty (1))
++ out += sprintf (out, "\x1B[31;47m"); /* Red. */
++ /* Fall through. */
++ case unicode_escape:
++ switch (nchars)
++ {
++ case 2:
++ out += sprintf (out, "\\u%02x%02x",
++ ((in[0] & 0x1c) >> 2),
++ ((in[0] & 0x03) << 6) | (in[1] & 0x3f));
++ break;
++
++ case 3:
++ out += sprintf (out, "\\u%02x%02x",
++ ((in[0] & 0x0f) << 4) | ((in[1] & 0x3c) >> 2),
++ ((in[1] & 0x03) << 6) | ((in[2] & 0x3f)));
++ break;
++
++ case 4:
++ out += sprintf (out, "\\u%02x%02x%02x",
++ ((in[0] & 0x07) << 6) | ((in[1] & 0x3c) >> 2),
++ ((in[1] & 0x03) << 6) | ((in[2] & 0x3c) >> 2),
++ ((in[2] & 0x03) << 6) | ((in[3] & 0x3f)));
++ break;
++ default:
++ /* URG. */
++ break;
++ }
++
++ if (unicode_display == unicode_highlight && isatty (1))
++ out += sprintf (out, "\033[0m"); /* Default colour. */
++ break;
++
++ default:
++ /* URG */
++ break;
++ }
++
++ * consumed = nchars;
++ return out - orig_out;
++
++ invalid:
++ /* Not a valid UTF-8 sequence. */
++ *out = *in;
++ * consumed = 1;
++ return 1;
++}
++
++/* Returns a version of IN with any control characters
++ replaced by escape sequences. Uses a static buffer
++ if necessary.
++
++ If unicode display is enabled, then also handles the
++ conversion of unicode characters. */
++
++static const char *
++sanitize_string (const char * in)
++{
++ static char * buffer = NULL;
++ static size_t buffer_len = 0;
++ const char * original = in;
++ char * out;
++
++ /* Paranoia. */
++ if (in == NULL)
++ return "";
++
++ /* See if any conversion is necessary. In the majority
++ of cases it will not be needed. */
++ do
++ {
++ unsigned char c = *in++;
++
++ if (c == 0)
++ return original;
++
++ if (ISCNTRL (c))
++ break;
++
++ if (unicode_display != unicode_default && c >= 0xc0)
++ break;
++ }
++ while (1);
++
++ /* Copy the input, translating as needed. */
++ in = original;
++ if (buffer_len < (strlen (in) * 9))
++ {
++ free ((void *) buffer);
++ buffer_len = strlen (in) * 9;
++ buffer = xmalloc (buffer_len + 1);
++ }
++
++ out = buffer;
++ do
++ {
++ unsigned char c = *in++;
++
++ if (c == 0)
++ break;
++
++ if (ISCNTRL (c))
++ {
++ *out++ = '^';
++ *out++ = c + 0x40;
++ }
++ else if (unicode_display != unicode_default && c >= 0xc0)
++ {
++ unsigned int num_consumed;
++
++ out += display_utf8 ((const unsigned char *)(in - 1), out, & num_consumed);
++ in += num_consumed - 1;
++ }
++ else
++ *out++ = c;
++ }
++ while (1);
++
++ *out = 0;
++ return buffer;
++}
++
+ /* Returns TRUE if the specified section should be dumped. */
+
+ static bfd_boolean
+@@ -458,8 +657,8 @@ dump_section_header (bfd *abfd, asection
+ return;
+
+ printf ("%3d %-*s %08lx ", section->index, longest_section_name,
+- bfd_get_section_name (abfd, section),
+- (unsigned long) bfd_section_size (abfd, section) / opb);
++ sanitize_string (bfd_section_name (abfd, section)),
++ (unsigned long) bfd_section_size (abfd, section) / opb);
+ bfd_printf_vma (abfd, bfd_get_section_vma (abfd, section));
+ printf (" ");
+ bfd_printf_vma (abfd, section->lma);
+@@ -892,6 +1091,8 @@ objdump_print_symname (bfd *abfd, struct
+ if (bfd_is_und_section (bfd_get_section (sym)))
+ hidden = TRUE;
+
++ name = sanitize_string (name);
++
+ if (inf != NULL)
+ {
+ (*inf->fprintf_func) (inf->stream, "%s", name);
+@@ -1141,7 +1342,7 @@ objdump_print_addr_with_sym (bfd *abfd,
+ bfd_vma secaddr;
+
+ (*inf->fprintf_func) (inf->stream, " <%s",
+- bfd_get_section_name (abfd, sec));
++ sanitize_string (bfd_section_name (abfd, sec)));
+ secaddr = bfd_get_section_vma (abfd, sec);
+ if (vma < secaddr)
+ {
+@@ -1563,7 +1764,7 @@ show_line (bfd *abfd, asection *section,
+ && (prev_functionname == NULL
+ || strcmp (functionname, prev_functionname) != 0))
+ {
+- printf ("%s():\n", functionname);
++ printf ("%s():\n", sanitize_string (functionname));
+ prev_line = -1;
+ }
+ if (linenumber > 0
+@@ -1572,10 +1773,10 @@ show_line (bfd *abfd, asection *section,
+ {
+ if (discriminator > 0)
+ printf ("%s:%u (discriminator %u)\n",
+- filename == NULL ? "???" : filename,
++ filename == NULL ? "???" : sanitize_string (filename),
+ linenumber, discriminator);
+ else
+- printf ("%s:%u\n", filename == NULL ? "???" : filename,
++ printf ("%s:%u\n", filename == NULL ? "???" : sanitize_string (filename),
+ linenumber);
+ }
+ if (unwind_inlines)
+@@ -1586,8 +1787,10 @@ show_line (bfd *abfd, asection *section,
+
+ while (bfd_find_inliner_info (abfd, &filename2, &functionname2,
+ &line2))
+- printf ("inlined by %s:%u (%s)\n", filename2, line2,
+- functionname2);
++ {
++ printf ("inlined by %s:%u", sanitize_string (filename2), line2);
++ printf (" (%s)\n", sanitize_string (functionname2));
++ }
+ }
+ }
+
+@@ -2081,7 +2284,7 @@ disassemble_bytes (struct disassemble_in
+ sym_name = bfd_get_section_name (aux->abfd, sym_sec);
+ if (sym_name == NULL || *sym_name == '\0')
+ sym_name = "*unknown*";
+- printf ("%s", sym_name);
++ printf ("%s", sanitize_string (sym_name));
+ }
+ }
+
+@@ -2228,7 +2431,7 @@ disassemble_section (bfd *abfd, asection
+ && (*rel_pp)->address < rel_offset + addr_offset)
+ ++rel_pp;
+
+- printf (_("\nDisassembly of section %s:\n"), section->name);
++ printf (_("\nDisassembly of section %s:\n"), sanitize_string (section->name));
+
+ /* Find the nearest symbol forwards from our current position. */
+ paux->require_sec = TRUE;
+@@ -2512,7 +2715,7 @@ load_specific_debug_section (enum dwarf_
+ {
+ free_debug_section (debug);
+ printf (_("\nCan't get contents for section '%s'.\n"),
+- section->name);
++ sanitize_string (section->name));
+ return FALSE;
+ }
+ /* Ensure any string section has a terminating NUL. */
+@@ -2534,7 +2737,7 @@ load_specific_debug_section (enum dwarf_
+ {
+ free_debug_section (debug);
+ printf (_("\nCan't get contents for section '%s'.\n"),
+- section->name);
++ sanitize_string (section->name));
+ return FALSE;
+ }
+
+@@ -2780,14 +2983,14 @@ read_section_stabs (bfd *abfd, const cha
+ stabsect = bfd_get_section_by_name (abfd, sect_name);
+ if (stabsect == NULL)
+ {
+- printf (_("No %s section present\n\n"), sect_name);
++ printf (_("No %s section present\n\n"), sanitize_string (sect_name));
+ return FALSE;
+ }
+
+ if (!bfd_malloc_and_get_section (abfd, stabsect, &contents))
+ {
+ non_fatal (_("reading %s section of %s failed: %s"),
+- sect_name, bfd_get_filename (abfd),
++ sanitize_string (sect_name), bfd_get_filename (abfd),
+ bfd_errmsg (bfd_get_error ()));
+ exit_status = 1;
+ free (contents);
+@@ -2830,7 +3033,7 @@ print_section_stabs (bfd *abfd,
+ stabp = stabs;
+ stabs_end = stabp + stab_size;
+
+- printf (_("Contents of %s section:\n\n"), stabsect_name);
++ printf (_("Contents of %s section:\n\n"), sanitize_string (stabsect_name));
+ printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
+
+ /* Loop through all symbols and print them.
+@@ -3093,7 +3296,7 @@ dump_section (bfd *abfd, asection *secti
+ if (start_offset >= stop_offset)
+ return;
+
+- printf (_("Contents of section %s:"), section->name);
++ printf (_("Contents of section %s:"), sanitize_string (section->name));
+ if (display_file_offsets)
+ printf (_(" (Starting at file offset: 0x%lx)"),
+ (unsigned long) (section->filepos + start_offset));
+@@ -3102,7 +3305,7 @@ dump_section (bfd *abfd, asection *secti
+ if (!bfd_get_full_section_contents (abfd, section, &data))
+ {
+ non_fatal (_("Reading section %s failed because: %s"),
+- section->name, bfd_errmsg (bfd_get_error ()));
++ sanitize_string (section->name), bfd_errmsg (bfd_get_error ()));
+ return;
+ }
+
+@@ -3242,6 +3445,24 @@ dump_symbols (bfd *abfd ATTRIBUTE_UNUSED
+ free (alloc);
+ }
+ }
++ else if (unicode_display != unicode_default
++ && name != NULL && *name != '\0')
++ {
++ const char * sanitized_name;
++
++ /* If we want to sanitize the name, we do it here, and
++ temporarily clobber it while calling bfd_print_symbol.
++ FIXME: This is a gross hack. */
++ sanitized_name = sanitize_string (name);
++ if (sanitized_name != name)
++ (*current)->name = sanitized_name;
++ else
++ sanitized_name = NULL;
++ bfd_print_symbol (cur_bfd, stdout, *current,
++ bfd_print_symbol_all);
++ if (sanitized_name != NULL)
++ (*current)->name = name;
++ }
+ else
+ bfd_print_symbol (cur_bfd, stdout, *current,
+ bfd_print_symbol_all);
+@@ -3307,7 +3528,7 @@ dump_reloc_set (bfd *abfd, asection *sec
+ && (last_functionname == NULL
+ || strcmp (functionname, last_functionname) != 0))
+ {
+- printf ("%s():\n", functionname);
++ printf ("%s():\n", sanitize_string (functionname));
+ if (last_functionname != NULL)
+ free (last_functionname);
+ last_functionname = xstrdup (functionname);
+@@ -3321,9 +3542,9 @@ dump_reloc_set (bfd *abfd, asection *sec
+ || (discriminator != last_discriminator)))
+ {
+ if (discriminator > 0)
+- printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber);
++ printf ("%s:%u\n", filename == NULL ? "???" : sanitize_string (filename), linenumber);
+ else
+- printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : filename,
++ printf ("%s:%u (discriminator %u)\n", filename == NULL ? "???" : sanitize_string (filename),
+ linenumber, discriminator);
+ last_line = linenumber;
+ last_discriminator = discriminator;
+@@ -3393,7 +3614,7 @@ dump_reloc_set (bfd *abfd, asection *sec
+ {
+ if (section_name == NULL)
+ section_name = "*unknown*";
+- printf ("[%s]", section_name);
++ printf ("[%s]", sanitize_string (section_name));
+ }
+
+ if (q->addend)
+@@ -3443,7 +3664,7 @@ dump_relocs_in_section (bfd *abfd,
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+- printf ("RELOCATION RECORDS FOR [%s]:", section->name);
++ printf ("RELOCATION RECORDS FOR [%s]:", sanitize_string (section->name));
+
+ if (relsize == 0)
+ {
+@@ -3835,7 +4056,7 @@ main (int argc, char **argv)
+ set_default_bfd_target ();
+
+ while ((c = getopt_long (argc, argv,
+- "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::",
++ "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::U:",
+ long_options, (int *) 0))
+ != EOF)
+ {
+@@ -4069,6 +4290,23 @@ main (int argc, char **argv)
+ seenflag = TRUE;
+ break;
+
++ case 'U':
++ if (streq (optarg, "default") || streq (optarg, "d"))
++ unicode_display = unicode_default;
++ else if (streq (optarg, "locale") || streq (optarg, "l"))
++ unicode_display = unicode_locale;
++ else if (streq (optarg, "escape") || streq (optarg, "e"))
++ unicode_display = unicode_escape;
++ else if (streq (optarg, "invalid") || streq (optarg, "i"))
++ unicode_display = unicode_invalid;
++ else if (streq (optarg, "hex") || streq (optarg, "x"))
++ unicode_display = unicode_hex;
++ else if (streq (optarg, "highlight") || streq (optarg, "h"))
++ unicode_display = unicode_highlight;
++ else
++ fatal (_("invalid argument to -U/--unicode: %s"), optarg);
++ break;
++
+ case 'H':
+ usage (stdout, 0);
+ /* No need to set seenflag or to break - usage() does not return. */
+diff -rup binutils.orig/binutils/strings.c binutils-2.30/binutils/strings.c
+--- binutils.orig/binutils/strings.c 2021-10-20 12:39:41.686008454 +0100
++++ binutils-2.30/binutils/strings.c 2021-10-20 13:32:22.029182908 +0100
+@@ -55,6 +55,19 @@
+ -T {bfdname}
+ Specify a non-default object file format.
+
++ --unicode={default|locale|invalid|hex|escape|highlight}
++ -U {d|l|i|x|e|h}
++ Determine how to handle UTF-8 unicode characters. The default
++ is no special treatment. All other versions of this option
++ only apply if the encoding is valid and enabling the option
++ implies --encoding=S.
++ The 'locale' option displays the characters according to the
++ current locale. The 'invalid' option treats them as
++ non-string characters. The 'hex' option displays them as hex
++ byte sequences. The 'escape' option displays them as escape
++ sequences and the 'highlight' option displays them as
++ coloured escape sequences.
++
+ --output-separator=sep_string
+ -s sep_string String used to separate parsed strings in output.
+ Default is newline.
+@@ -76,6 +89,22 @@
+ #include "safe-ctype.h"
+ #include "bucomm.h"
+
++#ifndef streq
++#define streq(a,b) (strcmp ((a),(b)) == 0)
++#endif
++
++typedef enum unicode_display_type
++{
++ unicode_default = 0,
++ unicode_locale,
++ unicode_escape,
++ unicode_hex,
++ unicode_highlight,
++ unicode_invalid
++} unicode_display_type;
++
++static unicode_display_type unicode_display = unicode_default;
++
+ #define STRING_ISGRAPHIC(c) \
+ ( (c) >= 0 \
+ && (c) <= 255 \
+@@ -94,7 +123,7 @@ extern int errno;
+ static int address_radix;
+
+ /* Minimum length of sequence of graphic chars to trigger output. */
+-static int string_min;
++static uint string_min;
+
+ /* Whether or not we include all whitespace as a graphic char. */
+ static bfd_boolean include_all_whitespace;
+@@ -130,6 +159,7 @@ static struct option long_options[] =
+ {"target", required_argument, NULL, 'T'},
+ {"output-separator", required_argument, NULL, 's'},
+ {"help", no_argument, NULL, 'h'},
++ {"unicode", required_argument, NULL, 'U'},
+ {"version", no_argument, NULL, 'v'},
+ {NULL, 0, NULL, 0}
+ };
+@@ -173,7 +203,7 @@ main (int argc, char **argv)
+ encoding = 's';
+ output_separator = NULL;
+
+- while ((optc = getopt_long (argc, argv, "adfhHn:wot:e:T:s:Vv0123456789",
++ while ((optc = getopt_long (argc, argv, "adfhHn:wot:e:T:s:U:Vv0123456789",
+ long_options, (int *) 0)) != EOF)
+ {
+ switch (optc)
+@@ -246,6 +276,23 @@ main (int argc, char **argv)
+ output_separator = optarg;
+ break;
+
++ case 'U':
++ if (streq (optarg, "default") || streq (optarg, "d"))
++ unicode_display = unicode_default;
++ else if (streq (optarg, "locale") || streq (optarg, "l"))
++ unicode_display = unicode_locale;
++ else if (streq (optarg, "escape") || streq (optarg, "e"))
++ unicode_display = unicode_escape;
++ else if (streq (optarg, "invalid") || streq (optarg, "i"))
++ unicode_display = unicode_invalid;
++ else if (streq (optarg, "hex") || streq (optarg, "x"))
++ unicode_display = unicode_hex;
++ else if (streq (optarg, "highlight") || streq (optarg, "h"))
++ unicode_display = unicode_highlight;
++ else
++ fatal (_("invalid argument to -U/--unicode: %s"), optarg);
++ break;
++
+ case 'V':
+ case 'v':
+ print_version ("strings");
+@@ -260,6 +307,9 @@ main (int argc, char **argv)
+ }
+ }
+
++ if (unicode_display != unicode_default)
++ encoding = 'S';
++
+ if (numeric_opt != 0)
+ {
+ string_min = (int) strtoul (argv[numeric_opt - 1] + 1, &s, 0);
+@@ -501,11 +551,629 @@ get_char (FILE *stream, file_ptr *addres
+
+ return r;
+ }
++
++static void
++print_filename_and_address (const char * filename, file_ptr address)
++{
++ if (print_filenames)
++ printf ("%s: ", filename);
++
++ if (! print_addresses)
++ return;
++
++ switch (address_radix)
++ {
++ case 8:
++ if (sizeof (address) > sizeof (long))
++ {
++#ifndef __MSVCRT__
++ printf ("%7llo ", (unsigned long long) address);
++#else
++ printf ("%7I64o ", (unsigned long long) address);
++#endif
++ }
++ else
++ printf ("%7lo ", (unsigned long) address);
++ break;
++
++ case 10:
++ if (sizeof (address) > sizeof (long))
++ {
++#ifndef __MSVCRT__
++ printf ("%7llu ", (unsigned long long) address);
++#else
++ printf ("%7I64d ", (unsigned long long) address);
++#endif
++ }
++ else
++ printf ("%7ld ", (long) address);
++ break;
++
++ case 16:
++ if (sizeof (address) > sizeof (long))
++ {
++#ifndef __MSVCRT__
++ printf ("%7llx ", (unsigned long long) address);
++#else
++ printf ("%7I64x ", (unsigned long long) address);
++#endif
++ }
++ else
++ printf ("%7lx ", (unsigned long) address);
++ break;
++ }
++}
++
++/* Return non-zero if the bytes starting at BUFFER form a valid UTF-8 encoding.
++ If the encoding is valid then returns the number of bytes it uses. */
++
++static unsigned int
++is_valid_utf8 (const unsigned char * buffer, unsigned long buflen)
++{
++ if (buffer[0] < 0xc0)
++ return 0;
++
++ if (buflen < 2)
++ return 0;
++
++ if ((buffer[1] & 0xc0) != 0x80)
++ return 0;
++
++ if ((buffer[0] & 0x20) == 0)
++ return 2;
++
++ if (buflen < 3)
++ return 0;
++
++ if ((buffer[2] & 0xc0) != 0x80)
++ return 0;
++
++ if ((buffer[0] & 0x10) == 0)
++ return 3;
++
++ if (buflen < 4)
++ return 0;
++
++ if ((buffer[3] & 0xc0) != 0x80)
++ return 0;
++
++ return 4;
++}
++
++/* Display a UTF-8 encoded character in BUFFER according to the setting
++ of unicode_display. The character is known to be valid.
++ Returns the number of bytes consumed. */
++
++static unsigned int
++display_utf8_char (const unsigned char * buffer)
++{
++ unsigned int j;
++ unsigned int utf8_len;
++
++ switch (buffer[0] & 0x30)
++ {
++ case 0x00:
++ case 0x10:
++ utf8_len = 2;
++ break;
++ case 0x20:
++ utf8_len = 3;
++ break;
++ default:
++ utf8_len = 4;
++ }
++
++ switch (unicode_display)
++ {
++ default:
++ fprintf (stderr, "ICE: unexpected unicode display type\n");
++ break;
++
++ case unicode_escape:
++ case unicode_highlight:
++ if (unicode_display == unicode_highlight && isatty (1))
++ printf ("\x1B[31;47m"); /* Red. */
++
++ switch (utf8_len)
++ {
++ case 2:
++ printf ("\\u%02x%02x",
++ ((buffer[0] & 0x1c) >> 2),
++ ((buffer[0] & 0x03) << 6) | (buffer[1] & 0x3f));
++ break;
++
++ case 3:
++ printf ("\\u%02x%02x",
++ ((buffer[0] & 0x0f) << 4) | ((buffer[1] & 0x3c) >> 2),
++ ((buffer[1] & 0x03) << 6) | ((buffer[2] & 0x3f)));
++ break;
++
++ case 4:
++ printf ("\\u%02x%02x%02x",
++ ((buffer[0] & 0x07) << 6) | ((buffer[1] & 0x3c) >> 2),
++ ((buffer[1] & 0x03) << 6) | ((buffer[2] & 0x3c) >> 2),
++ ((buffer[2] & 0x03) << 6) | ((buffer[3] & 0x3f)));
++ break;
++ default:
++ /* URG. */
++ break;
++ }
++
++ if (unicode_display == unicode_highlight && isatty (1))
++ printf ("\033[0m"); /* Default colour. */
++ break;
++
++ case unicode_hex:
++ putchar ('<');
++ for (j = 0; j < utf8_len; j++)
++ printf ("%02x", buffer [j]);
++ putchar ('>');
++ break;
++
++ case unicode_locale:
++ printf ("%.1s", buffer);
++ break;
++ }
++
++ return utf8_len;
++}
++
++/* Display strings in BUFFER. Treat any UTF-8 encoded characters encountered
++ according to the setting of the unicode_display variable. The buffer
++ contains BUFLEN bytes.
++
++ Display the characters as if they started at ADDRESS and are contained in
++ FILENAME. */
++
++static void
++print_unicode_buffer (const char * filename,
++ file_ptr address,
++ const unsigned char * buffer,
++ unsigned long buflen)
++{
++ /* Paranoia checks... */
++ if (filename == NULL
++ || buffer == NULL
++ || unicode_display == unicode_default
++ || encoding != 'S'
++ || encoding_bytes != 1)
++ {
++ fprintf (stderr, "ICE: bad arguments to print_unicode_buffer\n");
++ return;
++ }
++
++ if (buflen == 0)
++ return;
++
++ /* We must only display strings that are at least string_min *characters*
++ long. So we scan the buffer in two stages. First we locate the start
++ of a potential string. Then we walk along it until we have found
++ string_min characters. Then we go back to the start point and start
++ displaying characters according to the unicode_display setting. */
++
++ unsigned long start_point = 0;
++ unsigned long i = 0;
++ unsigned int char_len = 1;
++ unsigned int num_found = 0;
++
++ for (i = 0; i < buflen; i += char_len)
++ {
++ int c = buffer[i];
++
++ char_len = 1;
++
++ /* Find the first potential character of a string. */
++ if (! STRING_ISGRAPHIC (c))
++ {
++ num_found = 0;
++ continue;
++ }
++
++ if (c > 126)
++ {
++ if (c < 0xc0)
++ {
++ num_found = 0;
++ continue;
++ }
++
++ if ((char_len = is_valid_utf8 (buffer + i, buflen - i)) == 0)
++ {
++ char_len = 1;
++ num_found = 0;
++ continue;
++ }
++
++ if (unicode_display == unicode_invalid)
++ {
++ /* We have found a valid UTF-8 character, but we treat it as non-graphic. */
++ num_found = 0;
++ continue;
++ }
++ }
++
++ if (num_found == 0)
++ /* We have found a potential starting point for a string. */
++ start_point = i;
++
++ ++ num_found;
++
++ if (num_found >= string_min)
++ break;
++ }
++
++ if (num_found < string_min)
++ return;
++
++ print_filename_and_address (filename, address + start_point);
++
++ /* We have found string_min characters. Display them and any
++ more that follow. */
++ for (i = start_point; i < buflen; i += char_len)
++ {
++ int c = buffer[i];
++
++ char_len = 1;
++
++ if (! STRING_ISGRAPHIC (c))
++ break;
++ else if (c < 127)
++ putchar (c);
++ else if (! is_valid_utf8 (buffer + i, buflen - i))
++ break;
++ else if (unicode_display == unicode_invalid)
++ break;
++ else
++ char_len = display_utf8_char (buffer + i);
++ }
++
++ if (output_separator)
++ fputs (output_separator, stdout);
++ else
++ putchar ('\n');
++
++ /* FIXME: Using tail recursion here is lazy programming... */
++ print_unicode_buffer (filename, address + i, buffer + i, buflen - i);
++}
++
++static int
++get_unicode_byte (FILE * stream,
++ unsigned char * putback,
++ unsigned int * num_putback,
++ unsigned int * num_read)
++{
++ if (* num_putback > 0)
++ {
++ * num_putback = * num_putback - 1;
++ return putback [* num_putback];
++ }
++
++ * num_read = * num_read + 1;
++
++#if defined(HAVE_GETC_UNLOCKED) && HAVE_DECL_GETC_UNLOCKED
++ return getc_unlocked (stream);
++#else
++ return getc (stream);
++#endif
++}
++
++/* Helper function for print_unicode_stream. */
++
++static void
++print_unicode_stream_body (const char * filename,
++ file_ptr address,
++ FILE * stream,
++ unsigned char * putback_buf,
++ unsigned int num_putback,
++ unsigned char * print_buf)
++{
++ /* It would be nice if we could just read the stream into a buffer
++ and then process if with print_unicode_buffer. But the input
++ might be huge or it might time-locked (eg stdin). So instead
++ we go one byte at a time... */
++
++ file_ptr start_point = 0;
++ unsigned int num_read = 0;
++ unsigned int num_chars = 0;
++ unsigned int num_print = 0;
++ int c;
++
++ /* Find a series of string_min characters. Put them into print_buf. */
++ do
++ {
++ if (num_chars >= string_min)
++ break;
++
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++
++ if (! STRING_ISGRAPHIC (c))
++ {
++ num_chars = num_print = 0;
++ continue;
++ }
++
++ if (num_chars == 0)
++ start_point = num_read - 1;
++
++ if (c < 127)
++ {
++ print_buf[num_print] = c;
++ num_chars ++;
++ num_print ++;
++ continue;
++ }
++
++ if (c < 0xc0)
++ {
++ num_chars = num_print = 0;
++ continue;
++ }
++
++ /* We *might* have a UTF-8 sequence. Time to start peeking. */
++ char utf8[4];
++
++ utf8[0] = c;
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[1] = c;
++
++ if ((utf8[1] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[1];
++ num_chars = num_print = 0;
++ continue;
++ }
++ else if ((utf8[0] & 0x20) == 0)
++ {
++ /* A valid 2-byte UTF-8 encoding. */
++ if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[1];
++ num_chars = num_print = 0;
++ }
++ else
++ {
++ print_buf[num_print ++] = utf8[0];
++ print_buf[num_print ++] = utf8[1];
++ num_chars ++;
++ }
++ continue;
++ }
++
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[2] = c;
++
++ if ((utf8[2] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ num_chars = num_print = 0;
++ continue;
++ }
++ else if ((utf8[0] & 0x10) == 0)
++ {
++ /* A valid 3-byte UTF-8 encoding. */
++ if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ num_chars = num_print = 0;
++ }
++ else
++ {
++ print_buf[num_print ++] = utf8[0];
++ print_buf[num_print ++] = utf8[1];
++ print_buf[num_print ++] = utf8[2];
++ num_chars ++;
++ }
++ continue;
++ }
++
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[3] = c;
++
++ if ((utf8[3] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[3];
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ num_chars = num_print = 0;
++ }
++ /* We have a valid 4-byte UTF-8 encoding. */
++ else if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[3];
++ putback_buf[num_putback++] = utf8[1];
++ putback_buf[num_putback++] = utf8[2];
++ num_chars = num_print = 0;
++ }
++ else
++ {
++ print_buf[num_print ++] = utf8[0];
++ print_buf[num_print ++] = utf8[1];
++ print_buf[num_print ++] = utf8[2];
++ print_buf[num_print ++] = utf8[3];
++ num_chars ++;
++ }
++ }
++ while (1);
++
++ if (num_chars >= string_min)
++ {
++ /* We know that we have string_min valid characters in print_buf,
++ and there may be more to come in the stream. Start displaying
++ them. */
++
++ print_filename_and_address (filename, address + start_point);
++
++ unsigned int i;
++ for (i = 0; i < num_print;)
++ {
++ if (print_buf[i] < 127)
++ putchar (print_buf[i++]);
++ else
++ i += display_utf8_char (print_buf + i);
++ }
++
++ /* OK so now we have to start read unchecked bytes. */
++
++ /* Find a series of string_min characters. Put them into print_buf. */
++ do
++ {
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++
++ if (! STRING_ISGRAPHIC (c))
++ break;
++
++ if (c < 127)
++ {
++ putchar (c);
++ continue;
++ }
++
++ if (c < 0xc0)
++ break;
++
++ /* We *might* have a UTF-8 sequence. Time to start peeking. */
++ unsigned char utf8[4];
++
++ utf8[0] = c;
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[1] = c;
++
++ if ((utf8[1] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else if ((utf8[0] & 0x20) == 0)
++ {
++ /* Valid 2-byte UTF-8. */
++ if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else
++ {
++ (void) display_utf8_char (utf8);
++ continue;
++ }
++ }
++
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[2] = c;
++
++ if ((utf8[2] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else if ((utf8[0] & 0x10) == 0)
++ {
++ /* Valid 3-byte UTF-8. */
++ if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else
++ {
++ (void) display_utf8_char (utf8);
++ continue;
++ }
++ }
++
++ c = get_unicode_byte (stream, putback_buf, & num_putback, & num_read);
++ if (c == EOF)
++ break;
++ utf8[3] = c;
++
++ if ((utf8[3] & 0xc0) != 0x80)
++ {
++ /* Invalid UTF-8. */
++ putback_buf[num_putback++] = utf8[3];
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else if (unicode_display == unicode_invalid)
++ {
++ putback_buf[num_putback++] = utf8[3];
++ putback_buf[num_putback++] = utf8[2];
++ putback_buf[num_putback++] = utf8[1];
++ break;
++ }
++ else
++ /* A valid 4-byte UTF-8 encoding. */
++ (void) display_utf8_char (utf8);
++ }
++ while (1);
++
++ if (output_separator)
++ fputs (output_separator, stdout);
++ else
++ putchar ('\n');
++ }
++
++ if (c != EOF)
++ /* FIXME: Using tail recursion here is lazy, but it works. */
++ print_unicode_stream_body (filename, address + num_read, stream, putback_buf, num_putback, print_buf);
++}
++
++/* Display strings read in from STREAM. Treat any UTF-8 encoded characters
++ encountered according to the setting of the unicode_display variable.
++ The stream is positioned at ADDRESS and is attached to FILENAME. */
++
++static void
++print_unicode_stream (const char * filename,
++ file_ptr address,
++ FILE * stream)
++{
++ /* Paranoia checks... */
++ if (filename == NULL
++ || stream == NULL
++ || unicode_display == unicode_default
++ || encoding != 'S'
++ || encoding_bytes != 1)
++ {
++ fprintf (stderr, "ICE: bad arguments to print_unicode_stream\n");
++ return;
++ }
++
++ /* Allocate space for string_min 4-byte utf-8 characters. */
++ unsigned char * print_buf = xmalloc ((4 * string_min) + 1);
++ /* We should never have to put back more than 4 bytes. */
++ unsigned char putback_buf[5];
++ unsigned int num_putback = 0;
++
++ print_unicode_stream_body (filename, address, stream, putback_buf, num_putback, print_buf);
++ free (print_buf);
++}
+
+ /* Find the strings in file FILENAME, read from STREAM.
+ Assume that STREAM is positioned so that the next byte read
+ is at address ADDRESS in the file.
+- Stop reading at address STOP_POINT in the file, if nonzero.
+
+ If STREAM is NULL, do not read from it.
+ The caller can supply a buffer of characters
+@@ -516,20 +1184,29 @@ get_char (FILE *stream, file_ptr *addres
+
+ static void
+ print_strings (const char *filename, FILE *stream, file_ptr address,
+- int stop_point, int magiccount, char *magic)
++ int stop_point, int magiccount, char *magic)
+ {
++ if (unicode_display != unicode_default)
++ {
++ if (magic != NULL)
++ print_unicode_buffer (filename, address,
++ (const unsigned char *) magic, magiccount);
++
++ if (stream != NULL)
++ print_unicode_stream (filename, address, stream);
++ return;
++ }
++
+ char *buf = (char *) xmalloc (sizeof (char) * (string_min + 1));
+
+ while (1)
+ {
+ file_ptr start;
+- int i;
++ unsigned int i;
+ long c;
+
+ /* See if the next `string_min' chars are all graphic chars. */
+ tryline:
+- if (stop_point && address >= stop_point)
+- break;
+ start = address;
+ for (i = 0; i < string_min; i++)
+ {
+@@ -659,6 +1336,8 @@ usage (FILE *stream, int status)
+ -T --target=<BFDNAME> Specify the binary file format\n\
+ -e --encoding={s,S,b,l,B,L} Select character size and endianness:\n\
+ s = 7-bit, S = 8-bit, {b,l} = 16-bit, {B,L} = 32-bit\n\
++ --unicode={default|show|invalid|hex|escape|highlight}\n\
++ -U {d|s|i|x|e|h} Specify how to treat UTF-8 encoded unicode characters\n\
+ -s --output-separator=<string> String used to separate strings in output.\n\
+ @<file> Read options from <file>\n\
+ -h --help Display this information\n\
+--- binutils.orig/binutils/readelf.c 2021-10-20 12:39:41.715008273 +0100
++++ binutils-2.30/binutils/readelf.c 2021-10-20 14:05:42.242326079 +0100
+@@ -287,6 +287,18 @@ typedef enum print_mode
+ }
+ print_mode;
+
++typedef enum unicode_display_type
++{
++ unicode_locale,
++ unicode_escape,
++ unicode_hex,
++ unicode_highlight,
++ unicode_invalid
++} unicode_display_type;
++
++static unicode_display_type unicode_display = unicode_locale;
++
++
+ /* Versioned symbol info. */
+ enum versioned_symbol_info
+ {
+@@ -538,11 +550,18 @@ print_symbol (signed int width, const ch
+ if (c == 0)
+ break;
+
+- /* Do not print control characters directly as they can affect terminal
+- settings. Such characters usually appear in the names generated
+- by the assembler for local labels. */
+- if (ISCNTRL (c))
++ if (ISPRINT (c))
++ {
++ putchar (c);
++ width_remaining --;
++ num_printed ++;
++ }
++ else if (ISCNTRL (c))
+ {
++ /* Do not print control characters directly as they can affect terminal
++ settings. Such characters usually appear in the names generated
++ by the assembler for local labels. */
++
+ if (width_remaining < 2)
+ break;
+
+@@ -550,11 +569,135 @@ print_symbol (signed int width, const ch
+ width_remaining -= 2;
+ num_printed += 2;
+ }
+- else if (ISPRINT (c))
++ else if (c == 0x7f)
+ {
+- putchar (c);
+- width_remaining --;
+- num_printed ++;
++ if (width_remaining < 5)
++ break;
++ printf ("<DEL>");
++ width_remaining -= 5;
++ num_printed += 5;
++ }
++ else if (unicode_display != unicode_locale)
++ {
++ /* Display unicode characters as something else. */
++ unsigned char bytes[4];
++ bfd_boolean is_utf8;
++ unsigned int nbytes;
++
++ bytes[0] = c;
++
++ if (bytes[0] < 0xc0)
++ {
++ nbytes = 1;
++ is_utf8 = FALSE;
++ }
++ else
++ {
++ bytes[1] = *symbol++;
++
++ if ((bytes[1] & 0xc0) != 0x80)
++ {
++ is_utf8 = FALSE;
++ /* Do not consume this character. It may only
++ be the first byte in the sequence that was
++ corrupt. */
++ --symbol;
++ nbytes = 1;
++ }
++ else if ((bytes[0] & 0x20) == 0)
++ {
++ is_utf8 = TRUE;
++ nbytes = 2;
++ }
++ else
++ {
++ bytes[2] = *symbol++;
++
++ if ((bytes[2] & 0xc0) != 0x80)
++ {
++ is_utf8 = FALSE;
++ symbol -= 2;
++ nbytes = 1;
++ }
++ else if ((bytes[0] & 0x10) == 0)
++ {
++ is_utf8 = TRUE;
++ nbytes = 3;
++ }
++ else
++ {
++ bytes[3] = *symbol++;
++
++ nbytes = 4;
++
++ if ((bytes[3] & 0xc0) != 0x80)
++ {
++ is_utf8 = FALSE;
++ symbol -= 3;
++ nbytes = 1;
++ }
++ else
++ is_utf8 = TRUE;
++ }
++ }
++ }
++
++ if (unicode_display == unicode_invalid)
++ is_utf8 = FALSE;
++
++ if (unicode_display == unicode_hex || ! is_utf8)
++ {
++ unsigned int i;
++
++ if (width_remaining < (nbytes * 2) + 2)
++ break;
++
++ putchar (is_utf8 ? '<' : '{');
++ for (i = 0; i < nbytes; i++)
++ printf ("%02x", bytes[i]);
++ putchar (is_utf8 ? '>' : '}');
++ }
++ else
++ {
++ 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] & 0x03) << 6) | (bytes[1] & 0x3f));
++ break;
++ case 3:
++ if (width_remaining < 6)
++ break;
++ printf ("\\u%02x%02x",
++ ((bytes[0] & 0x0f) << 4) | ((bytes[1] & 0x3c) >> 2),
++ ((bytes[1] & 0x03) << 6) | (bytes[2] & 0x3f));
++ break;
++ case 4:
++ if (width_remaining < 8)
++ break;
++ printf ("\\u%02x%02x%02x",
++ ((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. */
++ break;
++ }
++
++ if (unicode_display == unicode_highlight && isatty (1))
++ printf ("\033[0m"); /* Default colour. */
++ }
++
++ if (bytes[nbytes - 1] == 0)
++ break;
+ }
+ else
+ {
+@@ -4375,6 +4518,7 @@ static struct option options[] =
+ {"dwarf-start", required_argument, 0, OPTION_DWARF_START},
+ {"dwarf-check", no_argument, 0, OPTION_DWARF_CHECK},
+
++ {"unicode", required_argument, 0, 'U'},
+ {"version", no_argument, 0, 'v'},
+ {"wide", no_argument, 0, 'W'},
+ {"help", no_argument, 0, 'H'},
+@@ -4432,6 +4576,11 @@ usage (FILE * stream)
+ fprintf (stream, _("\
+ -I --histogram Display histogram of bucket list lengths\n\
+ -W --wide Allow output width to exceed 80 characters\n\
++ -U --unicode=[locale|escape|hex|highlight|invalid]\n\
++ Display unicode characters as determined by the current locale\n\
++ (default), escape sequences, \"<hex sequences>\", highlighted\n\
++ escape sequences, or treat them as invalid and display as\n\
++ \"{hex sequences}\"\n\
+ @<file> Read options from <file>\n\
+ -H --help Display this information\n\
+ -v --version Display the version number of readelf\n"));
+@@ -4525,7 +4674,7 @@ parse_args (Filedata * filedata, int arg
+ usage (stderr);
+
+ while ((c = getopt_long
+- (argc, argv, "ADHINR:SVWacdeghi:lnp:rstuvw::x:z", options, NULL)) != EOF)
++ (argc, argv, "ADHINR:SU:VWacdeghi:lnp:rstuvw::x:z", options, NULL)) != EOF)
+ {
+ switch (c)
+ {
+@@ -4659,6 +4808,25 @@ parse_args (Filedata * filedata, int arg
+ request_dump (filedata, DISASS_DUMP);
+ break;
+ #endif
++ case 'U':
++ if (optarg == NULL)
++ error (_("Missing arg to -U/--unicode")); /* Can this happen ? */
++ else if (streq (optarg, "default") || streq (optarg, "d"))
++ unicode_display = unicode_locale;
++ else if (streq (optarg, "locale") || streq (optarg, "l"))
++ unicode_display = unicode_locale;
++ else if (streq (optarg, "escape") || streq (optarg, "e"))
++ unicode_display = unicode_escape;
++ else if (streq (optarg, "invalid") || streq (optarg, "i"))
++ unicode_display = unicode_invalid;
++ else if (streq (optarg, "hex") || streq (optarg, "x"))
++ unicode_display = unicode_hex;
++ else if (streq (optarg, "highlight") || streq (optarg, "h"))
++ unicode_display = unicode_highlight;
++ else
++ error (_("unknown argument to -U/--unicode: %s"), optarg);
++ break;
++
+ case 'v':
+ print_version (program_name);
+ break;
diff --git a/SPECS/binutils.spec b/SPECS/binutils.spec
index 89d663f..01d35b6 100644
--- a/SPECS/binutils.spec
+++ b/SPECS/binutils.spec
@@ -43,7 +43,7 @@
Summary: A GNU collection of binary utilities
Name: binutils%{?name_cross}%{?_with_debug:-debug}
Version: 2.30
-Release: 110%{?dist}
+Release: 111%{?dist}
License: GPLv3+
URL: https://sourceware.org/binutils
@@ -599,6 +599,10 @@ Patch93: binutils-plugin-as-needed-correct.patch
# Lifetime: Fixed in 2.37
Patch94: binutils-s390x-arch14.patch
+# Purpose: Add options to control the display of multibyte characters. CVE 2021-42574
+# Lifetime: Fixed in 2.38 (maybe)
+Patch95: binutils.unicode.patch
+
#----------------------------------------------------------------------------
Provides: bundled(libiberty)
@@ -830,6 +834,7 @@ using libelf instead of BFD.
%patch92 -p1
%patch93 -p1
%patch94 -p1
+%patch95 -p1
# We cannot run autotools as there is an exact requirement of autoconf-2.59.
# FIXME - this is no longer true. Maybe try reinstating autotool use ?
@@ -1279,6 +1284,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
+* Mon Oct 25 2021 Nick Clifton <nickc@redhat.com> - 2.30-111
+- Add ability to control the display of unicode characters. (#2009173)
+
* Wed Sep 29 2021 Nick Clifton <nickc@redhat.com> - 2.30-110
- Add support for the arch14 extensions to the s390x architecture. (#1984819)