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author"Steven J. Hill" <sjhill@realitydiluted.com>2005-05-07 02:04:55 +0000
committer"Steven J. Hill" <sjhill@realitydiluted.com>2005-05-07 02:04:55 +0000
commit0b3366f6a93ac0f7e2028745ea557c0acd8722c6 (patch)
tree2a87cb353c106eb55a44437d3b4d5e0d60af1d36 /libpthread/nptl/sysdeps/sparc/sparc64
parent2274f6b2ddc7d7ea919a8fa1f9c54ef1920cb180 (diff)
Import in NPTL code from glibc. For further information please
consult the 'README.NPTL' file.
Diffstat (limited to 'libpthread/nptl/sysdeps/sparc/sparc64')
-rw-r--r--libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h31
-rw-r--r--libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c39
-rw-r--r--libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c34
-rw-r--r--libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c30
-rw-r--r--libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h40
5 files changed, 174 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
new file mode 100644
index 000000000..77321aad3
--- /dev/null
+++ b/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David S. Miller <davem@davemloft.net>, 2005.
+
+ 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 <setjmp.h>
+#include <stdint.h>
+#include <unwind.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[0].uc_mcontext.mc_fp - (_adj))
+
+/* We use the normal lobngjmp for unwinding. */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c
new file mode 100644
index 000000000..77171d9b9
--- /dev/null
+++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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 "pthreadP.h"
+
+int
+pthread_spin_lock (pthread_spinlock_t *lock)
+{
+ __asm __volatile
+ ("1: ldstub [%0], %%g5\n"
+ " brnz,pn %%g5, 2f\n"
+ " membar #StoreLoad | #StoreStore\n"
+ ".subsection 2\n"
+ "2: ldub [%0], %%g5\n"
+ " brnz,pt %%g5, 2b\n"
+ " membar #LoadLoad\n"
+ " b,a,pt %%xcc, 1b\n"
+ ".previous"
+ : /* no outputs */
+ : "r" (lock)
+ : "g5", "memory");
+ return 0;
+}
diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c
new file mode 100644
index 000000000..2bda809da
--- /dev/null
+++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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 <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (pthread_spinlock_t *lock)
+{
+ int res;
+ __asm __volatile
+ ("ldstub [%1], %0\n"
+ "membar #StoreLoad | #StoreStore"
+ : "=r" (res)
+ : "r" (lock)
+ : "memory");
+ return res == 0 ? 0 : EBUSY;
+}
diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c
new file mode 100644
index 000000000..7037675a2
--- /dev/null
+++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c
@@ -0,0 +1,30 @@
+/* pthread_spin_unlock -- unlock a spin lock. Generic version.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+ 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 "pthreadP.h"
+#include <atomic.h>
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+ __asm __volatile ("membar #StoreStore | #LoadStore");
+ *lock = 0;
+ return 0;
+}
diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h b/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h
new file mode 100644
index 000000000..ec7651211
--- /dev/null
+++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h
@@ -0,0 +1,40 @@
+/* Copyright (C) 2003 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. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning. */
+#define STACK_ALIGN 16
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 4096
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 16
+
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME (stack_pointer + (2 * 128))
+register char *stack_pointer __asm__("%sp");
+
+/* XXX Until we have a better place keep the definitions here. */
+
+/* While there is no such syscall. */
+#define __exit_thread_inline(val) \
+ INLINE_SYSCALL (exit, 1, (val))