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-rw-r--r--sysdeps/mach/alpha/machine-lock.h80
-rw-r--r--sysdeps/mach/alpha/machine-sp.h36
-rw-r--r--sysdeps/mach/alpha/syscall.S39
-rw-r--r--sysdeps/mach/alpha/sysdep.h41
-rw-r--r--sysdeps/mach/alpha/thread_state.h39
5 files changed, 235 insertions, 0 deletions
diff --git a/sysdeps/mach/alpha/machine-lock.h b/sysdeps/mach/alpha/machine-lock.h
new file mode 100644
index 0000000000..42e21d8df2
--- /dev/null
+++ b/sysdeps/mach/alpha/machine-lock.h
@@ -0,0 +1,80 @@
+/* Machine-specific definition for spin locks. Alpha 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 long int __spin_lock_t;
+
+/* Value to initialize `__spin_lock_t' variables to. */
+
+#define __SPIN_LOCK_INITIALIZER 0L
+
+
+#ifndef _EXTERN_INLINE
+#define _EXTERN_INLINE extern __inline
+#endif
+
+/* Unlock LOCK. */
+
+_EXTERN_INLINE void
+__spin_unlock (__spin_lock_t *__lock)
+{
+ __asm__ __volatile__ ("mb; stq $31, %0; mb"
+ : "=m" (__lock));
+}
+
+/* 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 long int __rtn, __tmp;
+
+ do
+ {
+ __asm__ __volatile__ ("mb; ldq_l %0,%1" /* Load lock value into TMP. */
+ : "=r" (__tmp) : "m" (*__lock));
+ __rtn = 2; /* Load locked value into RTN. */
+ if (__tmp)
+ /* The lock is already taken. */
+ return 0;
+
+ /* The lock is not taken; try to get it now. */
+ __asm__ __volatile__ ("stq_c %0,%1"
+ : "=r" (__rtn), "=m" (*__lock)
+ : "0" (__rtn), "1" (*__lock));
+ /* RTN is clear if stq_c was interrupted; loop to try the lock again. */
+ } while (! __rtn);
+ /* RTN is now nonzero; we have the lock. */
+ return __rtn;
+}
+
+/* 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/alpha/machine-sp.h b/sysdeps/mach/alpha/machine-sp.h
new file mode 100644
index 0000000000..6a8a3c6d40
--- /dev/null
+++ b/sysdeps/mach/alpha/machine-sp.h
@@ -0,0 +1,36 @@
+/* Machine-specific function to return the stack pointer. Alpha 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)
+{
+ register void *__sp__ __asm__ ("$30");
+ return __sp__;
+}
+
+#endif /* machine-sp.h */
diff --git a/sysdeps/mach/alpha/syscall.S b/sysdeps/mach/alpha/syscall.S
new file mode 100644
index 0000000000..31ccb5fc30
--- /dev/null
+++ b/sysdeps/mach/alpha/syscall.S
@@ -0,0 +1,39 @@
+/* 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>
+#include <mach/machine/alpha_instruction.h>
+
+ENTRY (syscall)
+ .frame sp,0,ra
+ mov a0, v0 /* Load system call number from first arg. */
+ mov a1, a0
+ mov a2, a1
+ mov a3, a2
+ mov a4, a3
+ mov a5, a4
+ /* Load the remaining possible args (up to 11) from the stack. */
+ ldq a5,0(sp)
+ ldq t0,8(sp)
+ ldq t1,16(sp)
+ ldq t2,24(sp)
+ ldq t3,32(sp)
+ ldq t4,40(sp)
+ call_pal op_chmk
+ RET
+ .end syscall
diff --git a/sysdeps/mach/alpha/sysdep.h b/sysdeps/mach/alpha/sysdep.h
new file mode 100644
index 0000000000..a32766270b
--- /dev/null
+++ b/sysdeps/mach/alpha/sysdep.h
@@ -0,0 +1,41 @@
+/* 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 MOVE(x,y) mov x, y
+
+#define LOSE asm volatile ("call_pal 0") /* halt */
+
+#define START_MACHDEP \
+ asm ("_start: mov $30, $16\n" /* Put initial SP in a0. */ \
+ " br $27, 1f\n" /* Load GP from PC. */ \
+ "1: ldgp $29, 0($27)\n" \
+ " jmp $26, _start0"); /* Jump to _start0; don't return. */
+#define START_ARGS char **sparg
+#define SNARF_ARGS(argc, argv, envp) \
+ (envp = &(argv = &sparg[1])[(argc = *(int *) sparg) + 1])
+
+#define CALL_WITH_SP(fn, sp) \
+ ({ register long int __fn = (long int) fn, __sp = (long int) sp; \
+ asm volatile ("mov %0,$30; jmp $31, (%1); ldgp $29, 0(%1)" \
+ : : "r" (__sp), "r" (__fn)); })
+
+#define ENTRY(name) LEAF(name, ***loser no arg count***)
+
+#define STACK_GROWTH_DOWN
+
+#include_next <sysdep.h>
diff --git a/sysdeps/mach/alpha/thread_state.h b/sysdeps/mach/alpha/thread_state.h
new file mode 100644
index 0000000000..28b0a15758
--- /dev/null
+++ b/sysdeps/mach/alpha/thread_state.h
@@ -0,0 +1,39 @@
+/* Mach thread state definitions for machine-independent code. Alpha 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. */
+
+#include <mach/machine/thread_status.h>
+
+#define MACHINE_THREAD_STATE_FLAVOR ALPHA_THREAD_STATE
+#define MACHINE_THREAD_STATE_COUNT ALPHA_THREAD_STATE_COUNT
+
+#define machine_thread_state alpha_thread_state
+
+#define PC pc
+#define SP r30
+#define SYSRETURN r0
+
+struct machine_thread_all_state
+ {
+ int set; /* Mask of bits (1 << FLAVOR). */
+ struct alpha_thread_state basic;
+ struct alpha_exc_state exc;
+ struct alpha_float_state fpu;
+ };
+
+#include_next <thread_state.h>
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