initial import

8 files changed, 302 insertions, 0 deletions

diff --git a/sysdeps/mach/mips/Dist b/sysdeps/mach/mips/Dist
new file mode 100644
index 0000000000..f2699bf887
--- /dev/null
+++ b/sysdeps/mach/mips/Dist
@@ -0,0 +1 @@
+cacheflush.c
diff --git a/sysdeps/mach/mips/Makefile b/sysdeps/mach/mips/Makefile
new file mode 100644
index 0000000000..a890ae7b46
--- /dev/null
+++ b/sysdeps/mach/mips/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),gnulib)
+sysdep_routines += cacheflush
+endif
diff --git a/sysdeps/mach/mips/cacheflush.c b/sysdeps/mach/mips/cacheflush.c
new file mode 100644
index 0000000000..5325e6fd1e
--- /dev/null
+++ b/sysdeps/mach/mips/cacheflush.c
@@ -0,0 +1,44 @@
+/* Flush the insn cache after GCC writes a closure on the stack.  Mach/MIPS.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <mach.h>
+#include <mach/vm_attributes.h>
+
+/* Stupid name, but this is what GCC generates (config/mips/mips.h).  */
+void
+cacheflush (void *addr, size_t size, int flag)
+{
+  vm_machine_attribute_val_t val;
+
+  switch (flag)
+    {
+    case 0:			/* ? */
+      val = MATTR_VAL_DCACHE_FLUSH;
+    case 1:			/* This is the only value GCC uses.  */
+      val = MATTR_VAL_ICACHE_FLUSH;
+      break;
+    default:
+      val = MATTR_VAL_CACHE_FLUSH;
+    }
+
+  __vm_machine_attribute (__mach_task_self (),
+			  (vm_address_t) addr, size,
+			  MATTR_CACHE,
+			  &val);
+}
diff --git a/sysdeps/mach/mips/machine-lock.h b/sysdeps/mach/mips/machine-lock.h
new file mode 100644
index 0000000000..628aae41bb
--- /dev/null
+++ b/sysdeps/mach/mips/machine-lock.h
@@ -0,0 +1,73 @@
+/* Machine-specific definition for spin locks.  MIPS version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _MACHINE_LOCK_H
+#define	_MACHINE_LOCK_H
+
+/* The type of a spin lock variable.  */
+
+typedef __volatile int __spin_lock_t;
+
+/* Value to initialize `__spin_lock_t' variables to.  */
+
+#define	__SPIN_LOCK_INITIALIZER	0
+
+
+#ifndef _EXTERN_INLINE
+#define _EXTERN_INLINE extern __inline
+#endif
+
+/* Unlock LOCK.  */
+
+_EXTERN_INLINE void
+__spin_unlock (__spin_lock_t *__lock)
+{
+  *__lock = 0;
+}
+
+/* Try to lock LOCK; return nonzero if we locked it, zero if another has.  */
+
+_EXTERN_INLINE int
+__spin_try_lock (register __spin_lock_t *__lock)
+{
+  register int __rtn;
+  __asm__ __volatile (".set noreorder");
+#if 0
+  __asm__ __volatile ("lw %0,0(%1)": "=r" (__rtn) : "r" (__lock));
+  __asm__ __volatile ("sw %0,0(%0)": : "r" (__lock));
+  __asm__ __volatile ("xor %0,%1,%0": "=r" (__rtn) : "r" (__lock));
+#else
+  /* Use the Mach microkernel's emulated TAS pseudo-instruction.  */
+  register int __rtn __asm__ ("a0");
+  __asm__ __volatile (".word 0xf ! %0 " : "=r" (__rtn) : "0" (__lock));
+#endif
+  __asm__ __volatile (".set reorder");
+  return __rtn ^ (int) __lock;
+}
+
+/* Return nonzero if LOCK is locked.  */
+
+_EXTERN_INLINE int
+__spin_lock_locked (__spin_lock_t *__lock)
+{
+  return *__lock != 0;
+}
+
+
+#endif /* machine-lock.h */
diff --git a/sysdeps/mach/mips/machine-sp.h b/sysdeps/mach/mips/machine-sp.h
new file mode 100644
index 0000000000..7406658f53
--- /dev/null
+++ b/sysdeps/mach/mips/machine-sp.h
@@ -0,0 +1,38 @@
+/* Machine-specific function to return the stack pointer.  MIPS version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _MACHINE_SP_H
+#define _MACHINE_SP_H
+
+/* Return the current stack pointer.  */
+
+#ifndef _EXTERN_INLINE
+#define _EXTERN_INLINE extern __inline
+#endif
+
+_EXTERN_INLINE void *
+__thread_stack_pointer (void)
+{
+  void *__sp__;
+  __asm__ ("move %0,$29" : "=r" (__sp__));
+  return __sp__;
+}
+
+#endif	/* machine-sp.h */
+
diff --git a/sysdeps/mach/mips/syscall.S b/sysdeps/mach/mips/syscall.S
new file mode 100644
index 0000000000..bf56b401dd
--- /dev/null
+++ b/sysdeps/mach/mips/syscall.S
@@ -0,0 +1,37 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+ENTRY (syscall)
+	.frame	sp,0,ra
+	move	v0, a0		/* Load system call number from first arg.  */
+	move	a0, a1		/* Move the next three args up a register.  */
+	move	a1, a2
+	move	a2, a3
+     	/* Load the remaining possible args (up to 11) from the stack.  */
+	lw	t0,16(sp)
+	lw	t1,20(sp)
+	lw	t2,24(sp)
+	lw	t3,28(sp)
+	lw	t4,32(sp)
+	lw	t5,36(sp)
+	lw	t6,40(sp)
+	syscall			/* Do the system call.  */
+     	j ra			/* Return to caller.  */
+	.end	syscall
diff --git a/sysdeps/mach/mips/sysdep.h b/sysdeps/mach/mips/sysdep.h
new file mode 100644
index 0000000000..7609be5931
--- /dev/null
+++ b/sysdeps/mach/mips/sysdep.h
@@ -0,0 +1,69 @@
+/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#define MOVE(x,y)	move y , x
+
+#if 0
+#define LOSE asm volatile ("1: b 1b")
+#endif
+
+#define SNARF_ARGS(argc, argv, envp)					      \
+  do									      \
+    {									      \
+      int *entry_sp;							      \
+      register char **p;						      \
+									      \
+      asm ("addu %0,$30,4" : "=r" (entry_sp));				      \
+									      \
+      argc = *entry_sp;							      \
+      argv = (char **) (entry_sp + 1);					      \
+      p = argv;								      \
+      while (*p++ != NULL)						      \
+	;								      \
+      if (p >= (char **) argv[0])					      \
+	--p;								      \
+      envp = p;							      \
+    } while (0)
+
+#define CALL_WITH_SP(fn, sp) \
+  ({ register int __fn = fn, __sp = (int) sp; \
+     asm volatile ("move $sp,%0; j %1" : : "r" (__sp), "r" (__fn));})
+
+#define STACK_GROWTH_DOWN
+
+#ifdef P40
+#include <syscall.h>
+
+#define SYSCALL(name, args)	\
+  .globl syscall_error;	\
+  kernel_trap(name,SYS_##name,args);	\
+  beq $1,$0,1f;	\
+  j syscall_error;	\
+1:
+
+#define SYSCALL__(name, args)	\
+  .globl syscall_error;	\
+  kernel_trap(__##name,SYS_##name,args);	\
+  beq $1,$0,1f;	\
+  j syscall_error;	\
+1:
+
+#define ret	j ra; nop
+#endif
+
+#include_next <sysdep.h>
diff --git a/sysdeps/mach/mips/thread_state.h b/sysdeps/mach/mips/thread_state.h
new file mode 100644
index 0000000000..f4f4b429cf
--- /dev/null
+++ b/sysdeps/mach/mips/thread_state.h
@@ -0,0 +1,37 @@
+/* Mach thread state definitions for machine-independent code.  MIPS version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#define MACHINE_THREAD_STATE_FLAVOR	MIPS_THREAD_STATE
+#define MACHINE_THREAD_STATE_COUNT	MIPS_THREAD_STATE_COUNT
+
+#define machine_thread_state mips_thread_state
+
+#define PC pc
+#define SP r29
+#define SYSRETURN r2
+
+struct machine_thread_all_state
+  {
+    int set;			/* Mask of bits (1 << FLAVOR).  */
+    struct mips_thread_state basic;
+    struct mips_exc_state exc;
+    struct mips_float_state fpu;
+  };
+
+#include_next <thread_state.h>