Remove support for old gnu v2 name mangling.

	PR 24044
	* cxxfilt.c (hp_symbol_characters): Delete.
	(main): Remove depcreated demangling styles.
	* stabs.c (parse_stab_argtypes): Remove support for old gnu v2
	demangling opnames.
	* testsuite/binutils-all/cxxfilt.exp: Use the
	--no-strip-underscore option for targets that do prefix their
	symbols with underscores.
	Update tests to elimiate those that use gnu v2 encoding.

1 files changed, 3 insertions, 46 deletions

diff --git a/binutils/cxxfilt.c b/binutils/cxxfilt.c
index 0df99fc..7b8210e 100644
--- a/binutils/cxxfilt.c
+++ b/binutils/cxxfilt.c
@@ -135,42 +135,6 @@ standard_symbol_characters (void)
   return "_$.";
 }
 
-/* Return the string of non-alnum characters that may occur
-   as a valid symbol name component in an HP object file.
-
-   Note that, since HP's compiler generates object code straight from
-   C++ source, without going through an assembler, its mangled
-   identifiers can use all sorts of characters that no assembler would
-   tolerate, so the alphabet this function creates is a little odd.
-   Here are some sample mangled identifiers offered by HP:
-
-	typeid*__XT24AddressIndExpClassMember_
-	[Vftptr]key:__dt__32OrdinaryCompareIndExpClassMemberFv
-	__ct__Q2_9Elf64_Dyn18{unnamed.union.#1}Fv
-
-   This still seems really weird to me, since nowhere else in this
-   file is there anything to recognize curly brackets, parens, etc.
-   I've talked with Srikanth <srikanth@cup.hp.com>, and he assures me
-   this is right, but I still strongly suspect that there's a
-   misunderstanding here.
-
-   If we decide it's better for c++filt to use HP's assembler syntax
-   to scrape identifiers out of its input, here's the definition of
-   the symbol name syntax from the HP assembler manual:
-
-       Symbols are composed of uppercase and lowercase letters, decimal
-       digits, dollar symbol, period (.), ampersand (&), pound sign(#) and
-       underscore (_). A symbol can begin with a letter, digit underscore or
-       dollar sign. If a symbol begins with a digit, it must contain a
-       non-digit character.
-
-   So have fun.  */
-static const char *
-hp_symbol_characters (void)
-{
-  return "_$.<>#,*&[]:(){}";
-}
-
 extern int main (int, char **);
 
 int
@@ -245,20 +209,13 @@ main (int argc, char **argv)
 
   switch (current_demangling_style)
     {
-    case gnu_demangling:
-    case lucid_demangling:
-    case arm_demangling:
+    case auto_demangling:
+    case gnu_v3_demangling:
     case java_demangling:
-    case edg_demangling:
     case gnat_demangling:
-    case gnu_v3_demangling:
     case dlang_demangling:
     case rust_demangling:
-    case auto_demangling:
-      valid_symbols = standard_symbol_characters ();
-      break;
-    case hp_demangling:
-      valid_symbols = hp_symbol_characters ();
+       valid_symbols = standard_symbol_characters ();
       break;
     default:
       /* Folks should explicitly indicate the appropriate alphabet for