This is the mail archive of the
java-patches@gcc.gnu.org
mailing list for the Java project.
[PATCH/RFA] libjava: SH support
- From: kaz Kojima <kkojima at rr dot iij4u dot or dot jp>
- To: gcc-patches at gcc dot gnu dot org, java-patches at gcc dot gnu dot org
- Cc: aoliva at redhat dot com, joern dot rennecke at st dot com
- Date: Wed, 24 Jul 2002 12:09:08 +0900
- Subject: [PATCH/RFA] libjava: SH support
Hi,
This patch for mailine adds preliminary SH support for libjava.
Bootstrapped and regtested on sh4-unknown-linux-gnu.
BTW, I've got
=== libjava Summary ===
# of expected passes 2440
# of unexpected failures 75
# of expected failures 14
# of untested testcases 191
with make check. Are 75 failures too many?
kaz
--
2002-07-24 Kaz Kojima <kkojima@gcc.gnu.org>
* 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 Mon Jul 22 08:42:14 2002
@@ -125,6 +125,12 @@
enable_getenv_properties_default=no
enable_main_args_default=no
;;
+ sh-* | sh[34]*-*)
+ sysdeps_dir=sh
+ libgcj_flags="${libgcj_flags} -mieee"
+ libgcj_interpreter=yes
+ 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__ */