configure.host (sparc*-sun-solaris2.*): New case.

	* configure.host (sparc*-sun-solaris2.*): New case.
	* include/dwarf2-signal.h (MAKE_THROW_FRAME, SPARC case): Make dummy.
	* include/sparc-signal.h: Do not include ucontext.h.
	(SIGNAL_HANDLER): Rename symbol.
	(FLUSH_REGISTER_WINDOWS): Delete.
	(MAKE_THROW_FRAME): Make dummy.
	(INIT_SEGV): Adjust for above renaming.
	(INIT_FPE): Likewise.

From-SVN: r155092

1 files changed, 2 insertions, 56 deletions

diff --git a/libjava/include/dwarf2-signal.h b/libjava/include/dwarf2-signal.h
index 43f0cbe9..949bcc0 100644
--- a/libjava/include/dwarf2-signal.h
+++ b/libjava/include/dwarf2-signal.h
@@ -1,6 +1,6 @@
 // dwarf2-signal.h - Catch runtime signals and turn them into exceptions.
 
-/* Copyright (C) 2000, 2001  Free Software Foundation
+/* Copyright (C) 2000, 2001, 2009  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -58,61 +58,7 @@ do									\
   _sc->sc_ip++;								\
 }									\
 while (0)
-#elif defined(__sparc__)
-/* We could do the unwind of the signal frame quickly by hand here like
-   sparc-signal.h does under Solaris, but that makes debugging unwind
-   failures almost impossible.  */
-#if !defined(__arch64__)
-#define MAKE_THROW_FRAME(_exception)					\
-do									\
-{									\
-  /* Sparc-32 leaves PC pointing at a faulting instruction		\
-   always.								\
-   We advance the PC one instruction past the exception causing PC.	\
-   This is done because FDEs are found with "context->ra - 1" in the	\
-   unwinder.								\
-   Also, the dwarf2 unwind machinery is going to add 8 to the		\
-   PC it uses on Sparc.  So we adjust the PC here.  We do it here	\
-   because we run once for such an exception, however the Sparc specific\
-   unwind can run multiple times for the same exception and it would	\
-   adjust the PC more than once resulting in a bogus value.  */		\
-  struct sig_regs {							\
-    unsigned int psr, pc, npc, y, u_regs[16];				\
-  } *regp;								\
-  unsigned int insn;							\
-  __asm__ __volatile__("ld [%%i7 + 8], %0" : "=r" (insn));		\
-  /* mov __NR_sigaction, %g1; Old signal stack layout */		\
-  if (insn == 0x821020d8)						\
-    regp = (struct sig_regs *) _sip;					\
-  else									\
-    /* mov __NR_rt_sigaction, %g1; New signal stack layout */		\
-    regp = (struct sig_regs *) (_sip + 1);				\
-  regp->pc = ((regp->pc + 4) - 8);					\
-}									\
-while (0)
-#else
-#define MAKE_THROW_FRAME(_exception)					\
-do									\
-{									\
-  /* Sparc-64 leaves PC pointing at a faulting instruction		\
-   always.								\
-   We advance the PC one instruction past the exception causing PC.	\
-   This is done because FDEs are found with "context->ra - 1" in the	\
-   unwinder.								\
-   Also, the dwarf2 unwind machinery is going to add 8 to the		\
-   PC it uses on Sparc.  So we adjust the PC here.  We do it here	\
-   because we run once for such an exception, however the Sparc specific\
-   unwind can run multiple times for the same exception and it would	\
-   adjust the PC more than once resulting in a bogus value.  */		\
-  struct pt_regs {							\
-    unsigned long u_regs[16];						\
-    unsigned long tstate, tpc, tnpc;					\
-    unsigned int y, fprs;						\
-  } *regp = (struct pt_regs *) (_sip + 1);				\
-  regp->tpc = ((regp->tpc + 4) - 8);					\
-}									\
-while (0)
-#endif
+
 #else
 #define MAKE_THROW_FRAME(_exception)		\
 do						\