From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29547 invoked by alias); 24 Jul 2002 22:23:42 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 29487 invoked from network); 24 Jul 2002 22:23:40 -0000 Received: from unknown (HELO r-rr.iij4u.or.jp) (210.130.0.76) by sources.redhat.com with SMTP; 24 Jul 2002 22:23:40 -0000 Received: from localhost (frgw.3in.ne.jp [210.251.121.226]) by r-rr.iij4u.or.jp (8.11.6+IIJ/8.11.6) with ESMTP id g6OMNbN02759; Thu, 25 Jul 2002 07:23:37 +0900 (JST) Message-Id: <200207242223.g6OMNbN02759@r-rr.iij4u.or.jp> To: gcc-patches@gcc.gnu.org, java-patches@gcc.gnu.org Cc: jsturm@one-point.com, aoliva@redhat.com, joern.rennecke@superh.com Subject: Re: [PATCH/RFA] libjava: SH support In-Reply-To: Your message of "Wed, 24 Jul 2002 12:46:00 +0900" <200207240402.g6O42EN20030@r-rr.iij4u.or.jp> References: <200207240402.g6O42EN20030@r-rr.iij4u.or.jp> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 24 Jul 2002 15:27:00 -0000 From: kaz Kojima X-Dispatcher: imput version 971024 X-SW-Source: 2002-07/txt/msg01449.txt.bz2 kaz Kojima wrote: > Jeff Sturm writes: >> On Wed, 24 Jul 2002, kaz Kojima wrote: >>> === libjava Summary === >>> >>> # of expected passes 2440 >>> # of unexpected failures 75 >>> # of expected failures 14 >>> # of untested testcases 191 >> >> Does this port have a working MD_FALLBACK_FRAME_STATE_FOR? This is >> necessary to unwind through signal handler frames. Without it you can set >> CHECKREFSPEC, EXCEPTIONSPEC as is done for e.g. xscale*-elf: >> >> CHECKREFSPEC=-fcheck-references >> EXCEPTIONSPEC= > > SH port doesn't implement the dwarf-2 exception handler and doesn't > have a working MD_FALLBACK_FRAME_STATE_FOR yet. I'll add these 2 > lines and build libgcj again. Done. Now, 75 unexpected failures reduces to 65. Thanks Jeff. Here is a revised patch. Thanks, kaz -- 2002-07-25 Kaz Kojima * configure.host: Add SH support. * sysdep/sh/locks.h: New file. diff -urN ORIG/gcc/libjava/configure.host LOCAL/gcc/libjava/configure.host --- ORIG/gcc/libjava/configure.host Mon Jul 22 08:11:37 2002 +++ LOCAL/gcc/libjava/configure.host Wed Jul 24 12:17:59 2002 @@ -125,6 +125,14 @@ enable_getenv_properties_default=no enable_main_args_default=no ;; + sh-* | sh[34]*-*) + sysdeps_dir=sh + libgcj_flags="${libgcj_flags} -mieee" + libgcj_interpreter=yes + CHECKREFSPEC=-fcheck-references + EXCEPTIONSPEC= + enable_hash_synchronization_default=yes + ;; esac # This case statement supports generic port properties and may refine diff -urN ORIG/gcc/libjava/sysdep/sh/locks.h LOCAL/gcc/libjava/sysdep/sh/locks.h --- ORIG/gcc/libjava/sysdep/sh/locks.h Thu Jan 1 09:00:00 1970 +++ LOCAL/gcc/libjava/sysdep/sh/locks.h Sun Jul 21 17:45:26 2002 @@ -0,0 +1,72 @@ +// locks.h - Thread synchronization primitives. SuperH implementation. + +/* Copyright (C) 2002 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 __SYSDEP_LOCKS_H__ +#define __SYSDEP_LOCKS_H__ + +typedef size_t obj_addr_t; /* Integer type big enough for object */ + /* address. */ + +static unsigned char __cas_lock = 0; + +inline static void +__cas_start_atomic (void) +{ + unsigned int val; + + do + __asm__ __volatile__ ("tas.b @%1; movt %0" + : "=r" (val) + : "r" (&__cas_lock) + : "memory"); + while (val == 0); +} + +inline static void +__cas_end_atomic (void) +{ + __asm__ __volatile__ (" " : : : "memory"); + __cas_lock = 0; +} + +inline static bool +compare_and_swap (volatile obj_addr_t *addr, obj_addr_t old, + obj_addr_t new_val) +{ + bool ret; + + __cas_start_atomic (); + if (*addr != old) + ret = false; + else + { + *addr = new_val; + ret = true; + } + __cas_end_atomic (); + + return ret; +} + +inline static void +release_set (volatile obj_addr_t *addr, obj_addr_t new_val) +{ + __asm__ __volatile__ (" " : : : "memory"); + *(addr) = new_val; +} + +inline static bool +compare_and_swap_release (volatile obj_addr_t *addr, obj_addr_t old, + obj_addr_t new_val) +{ + return compare_and_swap (addr, old, new_val); +} + +#endif /* ! __SYSDEP_LOCKS_H__ */