Remove support for demangling GCC 2.x era mangling schemes.

libiberty/
	* 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.
include/
	* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
	ARM, HP, and EDG demangling styles.

From-SVN: r267363

include/ChangeLog

+2018-12-22  Jason Merrill  <jason@redhat.com>
+
+	* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
+	ARM, HP, and EDG demangling styles.
+
 2018-12-11  Nick Clifton  <nickc@redhat.com>
 
 	PR 88409

include/demangle.h

@@ -53,20 +53,13 @@ extern "C" {
 					   */
 
 #define DMGL_AUTO	 (1 << 8)
-#define DMGL_GNU	 (1 << 9)
-#define DMGL_LUCID	 (1 << 10)
-#define DMGL_ARM	 (1 << 11)
-#define DMGL_HP 	 (1 << 12)       /* For the HP aCC compiler;
-                                            same as ARM except for
-                                            template arguments, etc. */
-#define DMGL_EDG	 (1 << 13)
 #define DMGL_GNU_V3	 (1 << 14)
 #define DMGL_GNAT	 (1 << 15)
 #define DMGL_DLANG	 (1 << 16)
 #define DMGL_RUST	 (1 << 17)	/* Rust wraps GNU_V3 style mangling.  */
 
 /* If none of these are set, use 'current_demangling_style' as the default. */
-#define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT|DMGL_DLANG|DMGL_RUST)
+#define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT|DMGL_DLANG|DMGL_RUST)
 
 /* Disable a limit on the depth of recursion in mangled strings.
    Note if this limit is disabled then stack exhaustion is possible when
@@ -92,11 +85,6 @@ extern enum demangling_styles
   no_demangling = -1,
   unknown_demangling = 0,
   auto_demangling = DMGL_AUTO,
-  gnu_demangling = DMGL_GNU,
-  lucid_demangling = DMGL_LUCID,
-  arm_demangling = DMGL_ARM,
-  hp_demangling = DMGL_HP,
-  edg_demangling = DMGL_EDG,
   gnu_v3_demangling = DMGL_GNU_V3,
   java_demangling = DMGL_JAVA,
   gnat_demangling = DMGL_GNAT,
@@ -108,11 +96,6 @@ extern enum demangling_styles
 
 #define NO_DEMANGLING_STYLE_STRING            "none"
 #define AUTO_DEMANGLING_STYLE_STRING	      "auto"
-#define GNU_DEMANGLING_STYLE_STRING    	      "gnu"
-#define LUCID_DEMANGLING_STYLE_STRING	      "lucid"
-#define ARM_DEMANGLING_STYLE_STRING	      "arm"
-#define HP_DEMANGLING_STYLE_STRING	      "hp"
-#define EDG_DEMANGLING_STYLE_STRING	      "edg"
 #define GNU_V3_DEMANGLING_STYLE_STRING        "gnu-v3"
 #define JAVA_DEMANGLING_STYLE_STRING          "java"
 #define GNAT_DEMANGLING_STYLE_STRING          "gnat"
@@ -123,11 +106,6 @@ extern enum demangling_styles
 
 #define CURRENT_DEMANGLING_STYLE current_demangling_style
 #define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO)
-#define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU)
-#define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID)
-#define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM)
-#define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP)
-#define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG)
 #define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3)
 #define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA)
 #define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT)
@@ -147,17 +125,8 @@ extern const struct demangler_engine
 extern char *
 cplus_demangle (const char *mangled, int options);
 
-extern int
-cplus_demangle_opname (const char *opname, char *result, int options);
-
-extern const char *
-cplus_mangle_opname (const char *opname, int options);
-
 /* Note: This sets global state.  FIXME if you care about multi-threading. */
 
-extern void
-set_cplus_marker_for_demangling (int ch);
-
 extern enum demangling_styles
 cplus_demangle_set_style (enum demangling_styles style);
 

libiberty/ChangeLog

+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