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, 185 deletions

diff --git a/libjava/include/x86_64-signal.h b/libjava/include/x86_64-signal.h
deleted file mode 100644
index 12383b5..0000000
--- a/libjava/include/x86_64-signal.h
+++ /dev/null
@@ -1,185 +0,0 @@
-// x86_64-signal.h - Catch runtime signals and turn them into exceptions
-// on an x86_64 based GNU/Linux system.
-
-/* Copyright (C) 2003, 2006, 2007, 2012  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.  */
-
-
-#ifdef __x86_64__
-
-#ifndef JAVA_SIGNAL_H
-#define JAVA_SIGNAL_H 1
-
-#include <signal.h>
-#include <sys/syscall.h>
-
-#define HANDLE_SEGV 1
-#define HANDLE_FPE 1
-
-#define SIGNAL_HANDLER(_name)					\
-static void _Jv_##_name (int, siginfo_t *,			\
-			 void *_p __attribute__ ((__unused__)))
-
-#define HANDLE_DIVIDE_OVERFLOW						\
-do									\
-{									\
-  struct ucontext *_uc = (struct ucontext *)_p;				\
-  gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
-  unsigned char *_rip = (unsigned char *)_gregs[REG_RIP];		\
-									\
-  /* According to the JVM spec, "if the dividend is the negative	\
-   * integer of largest possible magnitude for the type and the		\
-   * divisor is -1, then overflow occurs and the result is equal to	\
-   * the dividend.  Despite the overflow, no exception occurs".		\
-									\
-   * We handle this by inspecting the instruction which generated the	\
-   * signal and advancing ip to point to the following instruction.	\
-   * As the instructions are variable length it is necessary to do a	\
-   * little calculation to figure out where the following instruction	\
-   * actually is.							\
-									\
-   */									\
-									\
-  bool _is_64_bit = false;						\
-									\
-  /* Skip 67h address size prefix.  */					\
-  if (_rip[0] == 0x67)							\
-    _rip++;								\
-									\
-  if ((_rip[0] & 0xf0) == 0x40)  /* REX byte present.  */		\
-    {									\
-      unsigned char _rex = _rip[0] & 0x0f;				\
-      _is_64_bit = (_rex & 0x08) != 0;					\
-      _rip++;								\
-    }									\
-									\
-  /* Detect a signed division of Integer.MIN_VALUE or Long.MIN_VALUE.  */ \
-  if (_rip[0] == 0xf7)							\
-    {									\
-      bool _min_value_dividend = false;					\
-      unsigned char _modrm = _rip[1];					\
-									\
-      if (((_modrm >> 3) & 7) == 7)					\
-	{								\
-	  if (_is_64_bit)						\
-	    _min_value_dividend =					\
-	      _gregs[REG_RAX] == (greg_t)0x8000000000000000ULL;		\
-	  else								\
-	    _min_value_dividend =					\
-	      (_gregs[REG_RAX] & 0xffffffff) == (greg_t)0x80000000ULL;	\
-	}								\
-									\
-      if (_min_value_dividend)						\
-	{								\
-	  unsigned char _rm = _modrm & 7;				\
-	  _gregs[REG_RDX] = 0; /* the remainder is zero */		\
-	  switch (_modrm >> 6)						\
-	    {								\
-	    case 0:  /* register indirect */				\
-	      if (_rm == 5)   /* 32-bit displacement */			\
-		_rip += 4;						\
-	      if (_rm == 4)  /* A SIB byte follows the ModR/M byte */	\
-		_rip += 1;						\
-	      break;							\
-	    case 1:  /* register indirect + 8-bit displacement */	\
-	      _rip += 1;						\
-	      if (_rm == 4)  /* A SIB byte follows the ModR/M byte */	\
-		_rip += 1;						\
-	      break;							\
-	    case 2:  /* register indirect + 32-bit displacement */	\
-	      _rip += 4;						\
-	      if (_rm == 4)  /* A SIB byte follows the ModR/M byte */	\
-		_rip += 1;						\
-	      break;							\
-	    case 3:							\
-	      break;							\
-	    }								\
-	  _rip += 2;							\
-	  _gregs[REG_RIP] = (greg_t)_rip;				\
-	  return;							\
-	}								\
-    }									\
-}									\
-while (0)
-
-extern "C" 
-{
-  struct kernel_sigaction 
-  {
-    void (*k_sa_sigaction)(int,siginfo_t *,void *);
-    unsigned long k_sa_flags;
-    void (*k_sa_restorer) (void);
-    sigset_t k_sa_mask;
-  };
-}
-
-#define MAKE_THROW_FRAME(_exception)
-
-#define RESTORE(name, syscall) RESTORE2 (name, syscall)
-#define RESTORE2(name, syscall)			\
-asm						\
-  (						\
-   ".text\n"					\
-   ".byte 0  # Yes, this really is necessary\n" \
-   ".align 16\n"				\
-   "__" #name ":\n"				\
-   "	movq $" #syscall ", %rax\n"		\
-   "	syscall\n"				\
-   );
-
-/* The return code for realtime-signals.  */
-RESTORE (restore_rt, __NR_rt_sigreturn)
-void restore_rt (void) asm ("__restore_rt")
-  __attribute__ ((visibility ("hidden")));
-
-#define INIT_SEGV						\
-do								\
-  {								\
-    struct kernel_sigaction act;				\
-    act.k_sa_sigaction = _Jv_catch_segv;			\
-    sigemptyset (&act.k_sa_mask);				\
-    act.k_sa_flags = SA_SIGINFO|0x4000000;			\
-    act.k_sa_restorer = restore_rt;				\
-    syscall (SYS_rt_sigaction, SIGSEGV, &act, NULL, _NSIG / 8);	\
-  }								\
-while (0)  
-
-#define INIT_FPE						\
-do								\
-  {								\
-    struct kernel_sigaction act;				\
-    act.k_sa_sigaction = _Jv_catch_fpe;				\
-    sigemptyset (&act.k_sa_mask);				\
-    act.k_sa_flags = SA_SIGINFO|0x4000000;			\
-    act.k_sa_restorer = restore_rt;				\
-    syscall (SYS_rt_sigaction, SIGFPE, &act, NULL, _NSIG / 8);	\
-  }								\
-while (0)  
-
-/* You might wonder why we use syscall(SYS_sigaction) in INIT_FPE
- * instead of the standard sigaction().  This is necessary because of
- * the shenanigans above where we increment the PC saved in the
- * context and then return.  This trick will only work when we are
- * called _directly_ by the kernel, because linuxthreads wraps signal
- * handlers and its wrappers do not copy the sigcontext struct back
- * when returning from a signal handler.  If we return from our divide
- * handler to a linuxthreads wrapper, we will lose the PC adjustment
- * we made and return to the faulting instruction again.  Using
- * syscall(SYS_sigaction) causes our handler to be called directly
- * by the kernel, bypassing any wrappers.  */
-
-#endif /* JAVA_SIGNAL_H */
-
-#else /* __x86_64__ */
-
-/* This is for the 32-bit subsystem on x86-64.  */
-
-#define sigcontext_struct sigcontext
-#include <java-signal-aux.h>
-
-#endif /* __x86_64__ */