Makefile.def: Remove libjava.

2016-09-30  Andrew Haley  <aph@redhat.com>

	* Makefile.def: Remove libjava.
	* Makefile.tpl: Likewise.
	* Makefile.in: Regenerate.
	* configure.ac: Likewise.
	* configure: Likewise.
	* gcc/java: Remove.
	* libjava: Likewise.

From-SVN: r240662

1 files changed, 0 insertions, 504 deletions

diff --git a/libjava/exception.cc b/libjava/exception.cc
deleted file mode 100644
index 61734a9..0000000
--- a/libjava/exception.cc
+++ /dev/null
@@ -1,504 +0,0 @@
-// Functions for Exception Support for Java.
-
-/* Copyright (C) 1998, 1999, 2001, 2002, 2006, 2010, 2011
-   Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#include <config.h>
-
-#include <stddef.h>
-#include <stdlib.h>
-
-#include <java/lang/Class.h>
-#include <java/lang/NullPointerException.h>
-#include <gnu/gcj/RawData.h> 
-#include <gcj/cni.h>
-#include <jvm.h>
-
-// unwind-pe.h uses std::abort(), but sometimes we compile libjava
-// without libstdc++-v3. The following hack forces it to use
-// stdlib.h's abort().
-namespace std
-{
-  __attribute__ ((__noreturn__)) void
-  abort ()
-  {
-    ::abort ();
-  }
-}
-#include "unwind.h"
-
-struct alignment_test_struct
-{
-  char space;
-  char end[0] __attribute__((aligned));
-};
-
-struct java_exception_header
-{
-  /* Cache handler details between Phase 1 and Phase 2.  */
-  _Unwind_Ptr landingPad;
-  int handlerSwitchValue;
-
-  /* The object being thrown.  Compiled code expects this to be immediately
-     before the generic exception header.  Which is complicated by the fact
-     that _Unwind_Exception is ((aligned)).  */
-
-  char pad[sizeof(jthrowable) < sizeof(alignment_test_struct)
-	   ? sizeof(alignment_test_struct) - sizeof(jthrowable) : 0]
-    __attribute__((aligned));
-
-  jthrowable value;
-
-  /* The generic exception header.  */
-  _Unwind_Exception unwindHeader;
-};
-
-#ifdef __ARM_EABI_UNWINDER__
-// This is the exception class we report -- "GNUCJAVA".
-
-const _Unwind_Exception_Class __gcj_exception_class
-  = {'G', 'N', 'U', 'C', 'J', 'A', 'V', 'A'};
-
-static inline java_exception_header *
-get_exception_header_from_ue (_Unwind_Exception *exc)
-{
-  return reinterpret_cast<java_exception_header *>(exc + 1) - 1;
-}
-
-extern "C" void __cxa_begin_cleanup (_Unwind_Exception*);
-
-#else // !__ARM_EABI_UNWINDER__
-// This is the exception class we report -- "GNUCJAVA".
-const _Unwind_Exception_Class __gcj_exception_class
-= ((((((((_Unwind_Exception_Class) 'G' 
-         << 8 | (_Unwind_Exception_Class) 'N')
-        << 8 | (_Unwind_Exception_Class) 'U')
-       << 8 | (_Unwind_Exception_Class) 'C')
-      << 8 | (_Unwind_Exception_Class) 'J')
-     << 8 | (_Unwind_Exception_Class) 'A')
-    << 8 | (_Unwind_Exception_Class) 'V')
-   << 8 | (_Unwind_Exception_Class) 'A');
-
-
-static inline java_exception_header *
-get_exception_header_from_ue (_Unwind_Exception *exc)
-{
-  return reinterpret_cast<java_exception_header *>(exc + 1) - 1;
-}
-#endif // !__ARM_EABI_UNWINDER__
-
-/* Perform a throw, Java style. Throw will unwind through this call,
-   so there better not be any handlers or exception thrown here. */
-
-extern "C" void
-_Jv_Throw (jthrowable value)
-{
-  java_exception_header *xh
-    = static_cast<java_exception_header *>(_Jv_AllocRawObj (sizeof (*xh)));
-
-  if (value == NULL)
-    value = new java::lang::NullPointerException ();
-  xh->value = value;
-
-  memcpy (&xh->unwindHeader.exception_class, &__gcj_exception_class,
-	  sizeof xh->unwindHeader.exception_class);
-  xh->unwindHeader.exception_cleanup = NULL;
-
-  /* We're happy with setjmp/longjmp exceptions or region-based
-     exception handlers: entry points are provided here for both.  */
-#ifdef __USING_SJLJ_EXCEPTIONS__
-  _Unwind_SjLj_RaiseException (&xh->unwindHeader);
-#else
-  _Unwind_RaiseException (&xh->unwindHeader);
-#endif
-
-  /* If code == _URC_END_OF_STACK, then we reached top of stack without
-     finding a handler for the exception.  Since each thread is run in
-     a try/catch, this oughtn't happen.  If code is something else, we
-     encountered some sort of heinous lossage from which we could not
-     recover.  As is the way of such things, almost certainly we will have
-     crashed before now, rather than actually being able to diagnose the
-     problem.  */
-  abort();
-}
-
-
-#include "unwind-pe.h"
-
-struct lsda_header_info
-{
-  _Unwind_Ptr Start;
-  _Unwind_Ptr LPStart;
-  const unsigned char *TType;
-  const unsigned char *action_table;
-  unsigned char ttype_encoding;
-  unsigned char call_site_encoding;
-};
-
-static const unsigned char *
-parse_lsda_header (_Unwind_Context *context, const unsigned char *p,
-		   lsda_header_info *info)
-{
-  _uleb128_t tmp;
-  unsigned char lpstart_encoding;
-
-  info->Start = (context ? _Unwind_GetRegionStart (context) : 0);
-
-  // Find @LPStart, the base to which landing pad offsets are relative.
-  lpstart_encoding = *p++;
-  if (lpstart_encoding != DW_EH_PE_omit)
-    p = read_encoded_value (context, lpstart_encoding, p, &info->LPStart);
-  else
-    info->LPStart = info->Start;
-
-  // Find @TType, the base of the handler and exception spec type data.
-  info->ttype_encoding = *p++;
-  if (info->ttype_encoding != DW_EH_PE_omit)
-    {
-#if _GLIBCXX_OVERRIDE_TTYPE_ENCODING
-      /* Older ARM EABI toolchains set this value incorrectly, so use a
-	 hardcoded OS-specific format.  */
-  info->ttype_encoding = _GLIBCXX_OVERRIDE_TTYPE_ENCODING;
-#endif
-      p = read_uleb128 (p, &tmp);
-      info->TType = p + tmp;
-    }
-  else
-    info->TType = 0;
-
-  // The encoding and length of the call-site table; the action table
-  // immediately follows.
-  info->call_site_encoding = *p++;
-  p = read_uleb128 (p, &tmp);
-  info->action_table = p + tmp;
-
-  return p;
-}
-
-static void **
-get_ttype_entry (_Unwind_Context *context, lsda_header_info *info, long i)
-{
-  _Unwind_Ptr ptr;
-
-  i *= size_of_encoded_value (info->ttype_encoding);
-  read_encoded_value (context, info->ttype_encoding, info->TType - i, &ptr);
-
-  return reinterpret_cast<void **>(ptr);
-}
-
-// Using a different personality function name causes link failures
-// when trying to mix code using different exception handling models.
-#ifdef __USING_SJLJ_EXCEPTIONS__
-#define PERSONALITY_FUNCTION	__gcj_personality_sj0
-#define __builtin_eh_return_data_regno(x) x
-#elif defined (__SEH__)
-#define PERSONALITY_FUNCTION	__gcj_personality_imp
-#else
-#define PERSONALITY_FUNCTION	__gcj_personality_v0
-#endif
-
-#ifdef __ARM_EABI_UNWINDER__
-
-#define CONTINUE_UNWINDING \
-  do								\
-    {								\
-      if (__gnu_unwind_frame(ue_header, context) != _URC_OK)	\
-	return _URC_FAILURE;					\
-      return _URC_CONTINUE_UNWIND;				\
-    }								\
-  while (0)
-
-extern "C" _Unwind_Reason_Code
-PERSONALITY_FUNCTION (_Unwind_State state,
-		      struct _Unwind_Exception* ue_header,
-		      struct _Unwind_Context* context)
-#else
-
-#define CONTINUE_UNWINDING return _URC_CONTINUE_UNWIND
-
-#ifdef __SEH__
-static
-#else
-extern "C"
-#endif
-_Unwind_Reason_Code
-PERSONALITY_FUNCTION (int version,
-		      _Unwind_Action actions,
-		      _Unwind_Exception_Class exception_class,
-		      struct _Unwind_Exception *ue_header,
-		      struct _Unwind_Context *context)
-
-#endif
-{
-  java_exception_header *xh = get_exception_header_from_ue (ue_header);
-
-  lsda_header_info info;
-  const unsigned char *language_specific_data;
-  const unsigned char *action_record;
-  const unsigned char *p;
-  _Unwind_Ptr landing_pad, ip;
-  int handler_switch_value;
-  bool saw_cleanup;
-  bool saw_handler;
-  bool foreign_exception;
-  int ip_before_insn = 0;
-
-#ifdef __ARM_EABI_UNWINDER__
-  _Unwind_Action actions;
-
-  switch (state & _US_ACTION_MASK)
-    {
-    case _US_VIRTUAL_UNWIND_FRAME:
-      actions = _UA_SEARCH_PHASE;
-      break;
-
-    case _US_UNWIND_FRAME_STARTING:
-      actions = _UA_CLEANUP_PHASE;
-      if (!(state & _US_FORCE_UNWIND)
-	  && ue_header->barrier_cache.sp == _Unwind_GetGR(context, 13))
-	actions |= _UA_HANDLER_FRAME;
-      break;
-
-    case _US_UNWIND_FRAME_RESUME:
-      CONTINUE_UNWINDING;
-      break;
-
-    default:
-      std::abort();
-    }
-  actions |= state & _US_FORCE_UNWIND;
-
-  // We don't know which runtime we're working with, so can't check this.
-  // However the ABI routines hide this from us, and we don't actually need
-  // to know.
-  foreign_exception = false;
-
-  // The dwarf unwinder assumes the context structure holds things like the
-  // function and LSDA pointers.  The ARM implementation caches these in
-  // the exception header (UCB).  To avoid rewriting everything we make the
-  // virtual IP register point at the UCB.
-  ip = (_Unwind_Ptr) ue_header;
-  _Unwind_SetGR(context, 12, ip);
-
-#else
-  // Interface version check.
-  if (version != 1)
-    return _URC_FATAL_PHASE1_ERROR;
-  foreign_exception = exception_class != __gcj_exception_class;
-#endif
-
-  // Shortcut for phase 2 found handler for domestic exception.
-  if (actions == (_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME)
-      && !foreign_exception)
-    {
-      handler_switch_value = xh->handlerSwitchValue;
-      landing_pad = xh->landingPad;
-      goto install_context;
-    }
-
-  // FIXME: In Phase 1, record _Unwind_GetIPInfo in xh->obj as a part of
-  // the stack trace for this exception.  This will only collect Java
-  // frames, but perhaps that is acceptable.
-  // FIXME2: _Unwind_GetIPInfo is nonsensical for SJLJ, being a call-site
-  // index instead of a PC value.  We could perhaps arrange for
-  // _Unwind_GetRegionStart to return context->fc->jbuf[1], which
-  // is the address of the handler label for __builtin_longjmp, but
-  // there is no solution for DONT_USE_BUILTIN_SETJMP.
-
-  language_specific_data = (const unsigned char *)
-    _Unwind_GetLanguageSpecificData (context);
-
-  // If no LSDA, then there are no handlers or cleanups.
-  if (! language_specific_data)
-    CONTINUE_UNWINDING;
-
-  // Parse the LSDA header.
-  p = parse_lsda_header (context, language_specific_data, &info);
-#ifdef HAVE_GETIPINFO
-  ip = _Unwind_GetIPInfo (context, &ip_before_insn);
-#else
-  ip = _Unwind_GetIP (context);
-#endif
-  if (! ip_before_insn)
-    --ip;
-  landing_pad = 0;
-  action_record = 0;
-  handler_switch_value = 0;
-
-#ifdef __USING_SJLJ_EXCEPTIONS__
-  // The given "IP" is an index into the call-site table, with two
-  // exceptions -- -1 means no-action, and 0 means terminate.  But
-  // since we're using uleb128 values, we've not got random access
-  // to the array.
-  if ((int) ip <= 0)
-    return _URC_CONTINUE_UNWIND;
-  else
-    {
-      _uleb128_t cs_lp, cs_action;
-      do
-	{
-	  p = read_uleb128 (p, &cs_lp);
-	  p = read_uleb128 (p, &cs_action);
-	}
-      while (--ip);
-
-      // Can never have null landing pad for sjlj -- that would have
-      // been indicated by a -1 call site index.
-      landing_pad = cs_lp + 1;
-      if (cs_action)
-	action_record = info.action_table + cs_action - 1;
-      goto found_something;
-    }
-#else
-  // Search the call-site table for the action associated with this IP.
-  while (p < info.action_table)
-    {
-      _Unwind_Ptr cs_start, cs_len, cs_lp;
-      _uleb128_t cs_action;
-
-      // Note that all call-site encodings are "absolute" displacements.
-      p = read_encoded_value (0, info.call_site_encoding, p, &cs_start);
-      p = read_encoded_value (0, info.call_site_encoding, p, &cs_len);
-      p = read_encoded_value (0, info.call_site_encoding, p, &cs_lp);
-      p = read_uleb128 (p, &cs_action);
-
-      // The table is sorted, so if we've passed the ip, stop.
-      if (ip < info.Start + cs_start)
-	p = info.action_table;
-      else if (ip < info.Start + cs_start + cs_len)
-	{
-	  if (cs_lp)
-	    landing_pad = info.LPStart + cs_lp;
-	  if (cs_action)
-	    action_record = info.action_table + cs_action - 1;
-	  goto found_something;
-	}
-    }
-#endif // __USING_SJLJ_EXCEPTIONS__
-
-  // If ip is not present in the table, C++ would call terminate.
-  // ??? It is perhaps better to tweek the LSDA so that no-action
-  // is mapped to no-entry for Java.
-  CONTINUE_UNWINDING;
-
- found_something:
-  saw_cleanup = false;
-  saw_handler = false;
-
-  if (landing_pad == 0)
-    {
-      // If ip is present, and has a null landing pad, there are
-      // no cleanups or handlers to be run.
-    }
-  else if (action_record == 0)
-    {
-      // If ip is present, has a non-null landing pad, and a null
-      // action table offset, then there are only cleanups present.
-      // Cleanups use a zero switch value, as set above.
-      saw_cleanup = true;
-    }
-  else
-    {
-      // Otherwise we have a catch handler.
-      _sleb128_t ar_filter, ar_disp;
-
-      while (1)
-	{
-	  p = action_record;
-	  p = read_sleb128 (p, &ar_filter);
-	  read_sleb128 (p, &ar_disp);
-
-	  if (ar_filter == 0)
-	    {
-	      // Zero filter values are cleanups.
-	      saw_cleanup = true;
-	    }
-
-	  // During forced unwinding, we only run cleanups.  With a
-	  // foreign exception class, we have no class info to match.
-	  else if ((actions & _UA_FORCE_UNWIND)
-		   || foreign_exception)
-	    ;
-
-	  else if (ar_filter > 0)
-	    {
-	      // Positive filter values are handlers.
-
-	      void **catch_word = get_ttype_entry (context, &info, ar_filter);
-	      jclass catch_type = (jclass)*catch_word;
-
-	      // FIXME: This line is a kludge to work around exception
-	      // handlers written in C++, which don't yet use indirect
-	      // dispatch.
-	      if (catch_type == *(void **)&java::lang::Class::class$)
-		catch_type = (jclass)catch_word;
-
-	      if (_Jv_IsInstanceOf (xh->value, catch_type))
-		{
-		  handler_switch_value = ar_filter;
-		  saw_handler = true;
-		  break;
-		}
-	    }
-	  else
-	    {
-	      // Negative filter values are exception specifications,
-	      // which Java does not use.
-	      // ??? Perhaps better to make them an index into a table
-	      // of null-terminated strings instead of playing games
-	      // with Utf8Const+1 as above.
-	      abort ();
-	    }
-
-	  if (ar_disp == 0)
-	    break;
-	  action_record = p + ar_disp;
-	}
-    }
-
-  if (! saw_handler && ! saw_cleanup)
-	CONTINUE_UNWINDING;
-
-  if (actions & _UA_SEARCH_PHASE)
-    {
-      if (! saw_handler)
-	CONTINUE_UNWINDING;
-
-      // For domestic exceptions, we cache data from phase 1 for phase 2.
-      if (! foreign_exception)
-        {
-          xh->handlerSwitchValue = handler_switch_value;
-          xh->landingPad = landing_pad;
-	}
-      return _URC_HANDLER_FOUND;
-    }
-
- install_context:
-  _Unwind_SetGR (context, __builtin_eh_return_data_regno (0),
-		 (_Unwind_Ptr) &xh->unwindHeader);
-  _Unwind_SetGR (context, __builtin_eh_return_data_regno (1),
-		 handler_switch_value);
-  _Unwind_SetIP (context, landing_pad);
-#ifdef __ARM_EABI_UNWINDER__
-  if (saw_cleanup)
-    __cxa_begin_cleanup(ue_header);
-#endif
-  return _URC_INSTALL_CONTEXT;
-}
-
-#ifdef __SEH__
-extern "C"
-EXCEPTION_DISPOSITION
-__gcj_personality_seh0 (PEXCEPTION_RECORD ms_exc, void *this_frame,
-			PCONTEXT ms_orig_context, PDISPATCHER_CONTEXT ms_disp)
-{
-  return _GCC_specific_handler (ms_exc, this_frame, ms_orig_context,
-				ms_disp, __gcj_personality_imp);
-}
-#endif /* SEH */