(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

8 files changed, 351 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..2a283e3e89
--- /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) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 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, unsigned 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..eccc720dfa
--- /dev/null
+++ b/sysdeps/mach/mips/machine-lock.h
@@ -0,0 +1,92 @@
+/* Machine-specific definition for spin locks.  MIPS version.
+   Copyright (C) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MACHINE_LOCK_H
+#define	_MACHINE_LOCK_H
+
+/* To get the TAS pseudo-instruction. */
+#include <mach/mips/mips_instruction.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)
+{
+#if (__mips >= 2)
+  int __rtn;
+
+  __asm__ __volatile (".set noreorder");
+#if (__mips64)
+  __asm__ __volatile ("lld %0,0(%1)" : "=r" (__rtn) : "r" (__lock));
+#else
+  __asm__ __volatile ("ll %0,0(%1)" : "=r" (__rtn) : "r" (__lock));
+#endif
+  if (__rtn)
+    return 0;
+  __asm__ __volatile ("move %0,%1" : "=r" (__rtn) : "r" (__lock));
+#if (__mips64)
+  __asm__ __volatile ("scd %0,0(%1)" : "=r" (__rtn) : "r" (__lock));
+#else
+  __asm__ __volatile ("sc %0,0(%1)" : "=r" (__rtn) : "r" (__lock));
+#endif
+  __asm__ __volatile (".set reorder");
+  return __rtn;
+#else
+  register int __rtn __asm__ ("a0");
+
+  /* Use the Mach microkernel's emulated TAS pseudo-instruction.  */
+  __asm__ __volatile (".set noreorder");
+  __asm__ __volatile (".word %1" : "=r" (__rtn) : "i" (op_tas), "0" (__lock));
+  __asm__ __volatile ("nop");
+  __asm__ __volatile (".set reorder");
+  return __rtn ^ (int) __lock;
+#endif
+}
+
+/* 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..144356a39f
--- /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) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 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..f2fc29df15
--- /dev/null
+++ b/sysdeps/mach/mips/syscall.S
@@ -0,0 +1,48 @@
+/* Copyright (C) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+
+#ifdef PIC
+	.option pic2
+#endif
+ENTRY (syscall)
+	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.  */
+#ifdef __mips64
+	ld	t0,4*8(sp)
+	ld	t1,5*8(sp)
+	ld	t2,6*8(sp)
+	ld	t3,7*8(sp)
+	ld	t4,8*8(sp)
+	ld	t5,9*8(sp)
+	ld	t6,10*8(sp)
+#else
+	lw	t0,4*4(sp)
+	lw	t1,5*4(sp)
+	lw	t2,6*4(sp)
+	lw	t3,7*4(sp)
+	lw	t4,8*4(sp)
+	lw	t5,9*4(sp)
+	lw	t6,10*4(sp)
+#endif
+	syscall			/* Do the system call.  */
+     	j ra			/* Return to caller.  */
diff --git a/sysdeps/mach/mips/sysdep.h b/sysdeps/mach/mips/sysdep.h
new file mode 100644
index 0000000000..8136f95bf2
--- /dev/null
+++ b/sysdeps/mach/mips/sysdep.h
@@ -0,0 +1,83 @@
+/* Copyright (C) 1996, 1997 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define LOSE asm volatile ("1: b 1b")
+
+#define START_MACHDEP asm ("\
+	.text\n\
+	.globl _start\n\
+	.ent _start\n\
+_start:\n\
+	# Put initial SP in a0.\n\
+	move $4, $29\n\
+	# Jump to _start0; don't return.\n\
+	j _start0\n\
+	.end _start\n\
+");
+#define START_ARGS	int *entry_sp
+#define SNARF_ARGS(argc, argv, envp)					      \
+  do									      \
+    {									      \
+      register char **p;						      \
+									      \
+      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 RETURN_TO(sp, pc, retval) \
+  asm volatile ("move $29, %0; move $2, %2; move $25, %1; jr $25" \
+		: : "r" (sp), "r" (pc), "r" (retval))
+
+#define STACK_GROWTH_DOWN
+
+#include <syscall.h>
+
+#if defined (__ASSEMBLER__)
+
+#define ALIGN	2
+
+#define MOVE(x,y)	move y , x
+
+#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 <sysdeps/mach/sysdep.h>
diff --git a/sysdeps/mach/mips/thread_state.h b/sysdeps/mach/mips/thread_state.h
new file mode 100644
index 0000000000..a0800de2d0
--- /dev/null
+++ b/sysdeps/mach/mips/thread_state.h
@@ -0,0 +1,42 @@
+/* Mach thread state definitions for machine-independent code.  MIPS version.
+   Copyright (C) 1996, 1997, 2000 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define MACHINE_THREAD_STATE_FLAVOR	MIPS_THREAD_STATE
+#define MACHINE_THREAD_STATE_COUNT	MIPS_THREAD_STATE_COUNT
+
+#ifdef __PIC__
+#define MACHINE_THREAD_STATE_SET_PC(ts, pc) \
+  ((ts)->PC = (ts)->r25 = (unsigned long int) (pc))
+#endif
+
+#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 <sysdeps/mach/thread_state.h>