From a4e44caa6d2a951af67aefb76ee22f7735bf293b Mon Sep 17 00:00:00 2001 From: Andrew Haley Date: Tue, 13 Apr 1999 09:18:09 +0000 Subject: i386-signal.h, [...]: New files. 1999-04-13 Andrew Haley * include/i386-signal.h, include/default-signal.h: New files. * prims.cc (catch_segv): Call MAKE_THROW_FRAME in exception handler. (catch_fpe): New function. * configure.in: Make link to appropriate include/java-signal.h. * configure: Rebuilt. * Makefile.am: include/java-signal.h added to dependency list. * Makefile.in: Rebuilt. From-SVN: r26400 --- libjava/include/default-signal.h | 18 ++++++++++++++++++ libjava/include/i386-signal.h | 38 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 libjava/include/default-signal.h create mode 100644 libjava/include/i386-signal.h (limited to 'libjava/include') diff --git a/libjava/include/default-signal.h b/libjava/include/default-signal.h new file mode 100644 index 00000000000..63ba129320c --- /dev/null +++ b/libjava/include/default-signal.h @@ -0,0 +1,18 @@ +// default-signal.h - Catch runtime signals and turn them into exceptions. + +/* Copyright (C) 1998, 1999 Cygnus Solutions + + 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 + +#undef HANDLE_SEGV +#undef HANDLE_FPE + +#endif /* JAVA_SIGNAL_H */ + diff --git a/libjava/include/i386-signal.h b/libjava/include/i386-signal.h new file mode 100644 index 00000000000..de893afbbf3 --- /dev/null +++ b/libjava/include/i386-signal.h @@ -0,0 +1,38 @@ +// i386-signal.h - Catch runtime signals and turn them into exceptions. + +/* Copyright (C) 1998, 1999 Cygnus Solutions + + 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. */ + +/* This technique should work for all i386 based Unices which conform + to iBCS2. This includes all versions of Linux more recent than + version 1.3 */ + + +#ifndef JAVA_SIGNAL_H +#define JAVA_SIGNAL_H 1 + +#include + +#define HANDLE_SEGV 1 +#define HANDLE_FPE 1 + + +#define MAKE_THROW_FRAME(_dummy) \ +{ \ + void **_p = (void **)&_dummy; \ + struct sigcontext_struct *_regs = (struct sigcontext_struct *)++_p; \ + \ + register unsigned long _ebp = _regs->ebp; \ + register unsigned long _eip = _regs->eip; \ + \ + asm volatile ("mov %0, (%%ebp); mov %1, 4(%%ebp)" \ + : : "r"(_ebp), "r"(_eip)); \ +} + +#endif /* JAVA_SIGNAL_H */ + -- cgit v1.2.3