pa32-linux.h (MD_FALLBACK_FRAME_STATE_FOR): Define.

* gcc/config/pa/pa32-linux.h (MD_FALLBACK_FRAME_STATE_FOR): Define. * libjava/configure.in (SIGNAL_HANDLER): Use pa-signal.h for hppa. * libjava/configure: Regenerate. * libjava/configure.host: Set can_unwind_signal for hppa*-linux. * libjava/pa-signal.h: New file. From-SVN: r84344
2004-07-09 03:39:35 +00:00
parent 691e2db899
commit 8c5ac2c403
7 changed files with 173 additions and 0 deletions
@@ -0,0 +1,61 @@
+// pa-signal.h - Catch runtime signals and turn them into exceptions.
+
+/* Copyright (C) 1998, 1999, 2000  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.  */
+
+#ifndef JAVA_SIGNAL_H
+#define JAVA_SIGNAL_H 1
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/syscall.h>
+
+#define HANDLE_SEGV 1
+#define HANDLE_FPE 1
+
+#define SIGNAL_HANDLER(_name) 					\
+static void _Jv_##_name (int _dummy, siginfo_t *_info, void *arg)
+
+#define MAKE_THROW_FRAME(_exception)				\
+do								\
+{								\
+  struct ucontext *uc = (struct ucontext *)arg;			\
+  struct sigcontext *sc = &uc->uc_mcontext;			\
+  (void)_dummy;							\
+  (void)_info;							\
+  /* Advance the program counter so that it is after the start 	\
+     of the instruction:  the exception handler expects		\
+     the PC to point to the instruction after a call. */	\
+  sc->sc_iaoq[0] = sc->sc_iaoq[1];				\
+  sc->sc_iaoq[1] += 4;						\
+}								\
+while (0)
+
+#define INIT_SEGV						\
+do								\
+  {								\
+    struct sigaction act;					\
+    act.sa_sigaction = _Jv_catch_segv;      			\
+    sigemptyset (&act.sa_mask);					\
+    act.sa_flags = SA_SIGINFO;	       				\
+    syscall (SYS_rt_sigaction, SIGSEGV, &act, NULL, _NSIG / 8);	\
+  }								\
+while (0)  
+
+#define INIT_FPE						\
+do								\
+  { 								\
+    struct sigaction act;					\
+    act.sa_sigaction = _Jv_catch_fpe;				\
+    sigemptyset (&act.sa_mask);					\
+    act.sa_flags = SA_SIGINFO;		       			\
+    syscall (SYS_rt_sigaction, SIGFPE, &act, NULL, _NSIG / 8);	\
+  }								\
+while (0)  
+
+#endif /* JAVA_SIGNAL_H */