Revert "Sync libiberty sources with master version in gcc repository. Updated stabs demangling and cxxfilt tests to match."

The previous commit breaks the GDB build, which is still using functions
cplus_demangle_opname & co.  Since removing these usages is not an
obvious fix, let's revert this patch until we get rid of them.

ChangeLog

@@ -1,7 +1,3 @@
-2019-01-07  Nick Clifton  <nickc@redhat.com>
-
-	* libiberty: Merge from gcc.
-
 2019-01-03  Дилян Палаузов  <dilyan.palauzov@aegee.org>
 
 	* configure.ac: Don't configure readline if --with-system-readline is

binutils/ChangeLog

@@ -1,11 +1,3 @@
-2019-01-07  Nick Clifton  <nickc@redhat.com>
-
-	PR 24044
-	* stabs.c (parse_stab_argtypes): Remove call to
-	cplus_mangle_opcode.
-	* testsuite/binutils-all/cxxfilt.exp: Replace tests of v2 encoding
-	with v3 encoding.  Add escape for known failures.
-
 2018-12-25  Yoshinori Sato <ysato@users.sourceforge.jp>
 	* readelf.c (get_machine_flags): Add RXv3 output.
 

binutils/stabs.c

@@ -3037,15 +3037,27 @@ parse_stab_argtypes (void *dhandle, struct stab_handle *info,
 	  && fieldname[1] == 'p'
 	  && (fieldname[2] == '$' || fieldname[2] == '.'))
 	{
-	  /* Opname selection is no longer supported by libiberty's demangler.  */
-	  return DEBUG_TYPE_NULL;
-	}
+	  const char *opname;
 
-      physname = (char *) xmalloc (mangled_name_len);
-      if (is_constructor)
-	physname[0] = '\0';
+	  opname = cplus_mangle_opname (fieldname + 3, 0);
+	  if (opname == NULL)
+	    {
+	      fprintf (stderr, _("No mangling for \"%s\"\n"), fieldname);
+	      return DEBUG_TYPE_NULL;
+	    }
+	  mangled_name_len += strlen (opname);
+	  physname = (char *) xmalloc (mangled_name_len);
+	  strncpy (physname, fieldname, 3);
+	  strcpy (physname + 3, opname);
+	}
       else
-	strcpy (physname, fieldname);
+	{
+	  physname = (char *) xmalloc (mangled_name_len);
+	  if (is_constructor)
+	    physname[0] = '\0';
+	  else
+	    strcpy (physname, fieldname);
+	}
 
       physname_len = strlen (physname);
       strcat (physname, buf);

binutils/testsuite/binutils-all/cxxfilt.exp

@@ -14,30 +14,6 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
 
-# For some reason cxxfilt is not working on the following targets.
-# FIXME: Investigate why.
-if { [istarget "cris*-*-*"] || \
-     [istarget "cr16-*-*"] || \
-     [istarget "crx*-*-*"] || \
-     [istarget "epiphany-*-*"] || \
-     [istarget "ip2k-*-*"] || \
-     [istarget "metag-*-*"] || \
-     [istarget "mn10200-*-*"] || \
-     [istarget "mn10300-*-*"] || \
-     [istarget "ns32k-*-*"] || \
-     [istarget "pdp11-*-*"] || \
-     [istarget "rl78-*-*"] || \
-     [istarget "rx-*-*"] || \
-     [istarget "sh-*-*"] || \
-     [istarget "tic4*-*-*"] || \
-     [istarget "tic54*-*-*"] || \
-     [istarget "v850-*-*"] || \
-     [istarget "z8k-*-*"] || \
-     [istarget "*-*-cygwin"] || \
-     [istarget "*-*-mingw32"] } then {
-    return
-}
-
 proc test_cxxfilt {options mangled_string demangled_string} {
     global CXXFILT
     global CXXFILTFLAGS
@@ -56,12 +32,12 @@ proc test_cxxfilt {options mangled_string demangled_string} {
 
 # Mangled and demangled strings stolen from libiberty/testsuite/demangle-expected.
 test_cxxfilt {} \
-    "_Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E" \
-    "void f.void, int, false.(void (.)(int) noexcept(false))*"
+    "AddAlignment__9ivTSolverUiP12ivInteractorP7ivTGlue" \
+    "ivTSolver::AddAlignment(unsigned int, ivInteractor ., ivTGlue .)*"
 
-test_cxxfilt {--format=gnu-v3} \
-    "_Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE" \
-    "int& int_if_addable.Y.(A.sizeof ((.((Y.)(0))).(.((Y.)(0))))..)*"
+test_cxxfilt {--format=lucid} \
+    "__ct__12strstreambufFPFl_PvPFPv_v" \
+    "strstreambuf..(strstreambuf|_ct)(void .(.)(long), void (.)(void .))*"
 
 test_cxxfilt {--no-recurse-limit} \
     "Z3fooiPiPS_PS0_PS1_PS2_PS3_PS4_PS5_PS6_PS7_PS8_PS9_PSA_PSB_PSC_" \

libiberty/ChangeLog

@@ -1,17 +1,3 @@
-2019-01-01  Jakub Jelinek  <jakub@redhat.com>
-
-	Update copyright years.
-
-2018-12-22  Jason Merrill  <jason@redhat.com>
-
-	Remove support for demangling GCC 2.x era mangling schemes.
-	* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
-	internal_cplus_demangle, and all subroutines.
-	(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
-	Lucid, ARM, HP, and EDG demangling styles.
-	(cplus_demangle): Remove 'work' variable.  Don't call
-	internal_cplus_demangle.
-
 2018-12-07  Nick Clifton  <nickc@redhat.com>
 
 	PR 87681
@@ -77,18 +63,28 @@
 
 	* cplus-dem.c (remember_Btype): Don't call memcpy with LEN==0.
 
-2018-07-26  Martin Liska  <mliska@suse.cz>
+2018-08-01  Richard Earnshaw  <rearnsha@arm.com>
+
+	Copy over from GCC
+	2018-07-26  Martin Liska  <mliska@suse.cz>
 
-	PR lto/86548
+        PR lto/86548
 	* make-temp-file.c (TEMP_FILE): Remove leading 'cc'.
 	(make_temp_file): Call make_temp_file_with_prefix with
-	first argument set to NULL.
+        first argument set to NULL.
 	(make_temp_file_with_prefix): Support also prefix.
 
-2018-07-19  Eli Zaretskii  <eliz@gnu.org>
+2018-07-18  Eli Zaretskii  <eliz@gnu.org>
+
+	PR gdb/23434
+	* libiberty/simple-object-elf.c (ENOTSUP): If not defined by
+        errno.h, redirect ENOTSUP to ENOSYS.
 
-	* simple-object-elf.c (ENOTSUP): If not defined by errno.h, redirect
-	to ENOSYS.
+2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* configure.ac: Remove AC_PREREQ.
+	* configure: Re-generate.
+	* config.in: Re-generate.
 
 2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
 
@@ -991,8 +987,8 @@
 	* functions.texi: Regenerate.
 
 2014-12-11  Uros Bizjak  <ubizjak@gmail.com>
-	    Ben Elliston  <bje@au.ibm.com>
-	    Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
+            Ben Elliston  <bje@au.ibm.com>
+            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 
 	* xvasprintf.c: New file.
 	* vprintf-support.h: Likewise.