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authorMike Frysinger <vapier@gentoo.org>2014-02-15 22:07:25 -0500
committerMike Frysinger <vapier@gentoo.org>2014-02-16 01:12:38 -0500
commitc70a4b1db0cf5e813ae24b0fa96a352399eb6edf (patch)
tree5a36b0f0955682ae5232907d04fdf68589990783 /sysdeps/ia64/nptl
parent591aeaf7a99bc9aa9179f013114d92496952dced (diff)
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ia64: relocate out of ports/ subdir
Diffstat (limited to 'sysdeps/ia64/nptl')
-rw-r--r--sysdeps/ia64/nptl/Makefile24
-rw-r--r--sysdeps/ia64/nptl/pthread_spin_lock.c35
-rw-r--r--sysdeps/ia64/nptl/pthread_spin_trylock.c27
-rw-r--r--sysdeps/ia64/nptl/pthread_spin_unlock.c27
-rw-r--r--sysdeps/ia64/nptl/pthreaddef.h42
-rw-r--r--sysdeps/ia64/nptl/shlib-versions1
-rw-r--r--sysdeps/ia64/nptl/tcb-offsets.sym7
-rw-r--r--sysdeps/ia64/nptl/tls.h185
8 files changed, 348 insertions, 0 deletions
diff --git a/sysdeps/ia64/nptl/Makefile b/sysdeps/ia64/nptl/Makefile
new file mode 100644
index 0000000000..e11c329d39
--- /dev/null
+++ b/sysdeps/ia64/nptl/Makefile
@@ -0,0 +1,24 @@
+# Copyright (C) 2003-2014 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, see
+# <http://www.gnu.org/licenses/>.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
+
+ifeq ($(subdir),nptl)
+libpthread-routines += ptw-sysdep ptw-sigblock ptw-sigprocmask
+endif
diff --git a/sysdeps/ia64/nptl/pthread_spin_lock.c b/sysdeps/ia64/nptl/pthread_spin_lock.c
new file mode 100644
index 0000000000..71268ddc14
--- /dev/null
+++ b/sysdeps/ia64/nptl/pthread_spin_lock.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (lock)
+ pthread_spinlock_t *lock;
+{
+ int *p = (int *) lock;
+
+ while (__builtin_expect (__sync_val_compare_and_swap (p, 0, 1), 0))
+ {
+ /* Spin without using the atomic instruction. */
+ do
+ __asm __volatile ("hint @pause" : : : "memory");
+ while (*p);
+ }
+ return 0;
+}
diff --git a/sysdeps/ia64/nptl/pthread_spin_trylock.c b/sysdeps/ia64/nptl/pthread_spin_trylock.c
new file mode 100644
index 0000000000..10ae45da33
--- /dev/null
+++ b/sysdeps/ia64/nptl/pthread_spin_trylock.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (lock)
+ pthread_spinlock_t *lock;
+{
+ return __sync_val_compare_and_swap ((int *) lock, 0, 1) == 0 ? 0 : EBUSY;
+}
diff --git a/sysdeps/ia64/nptl/pthread_spin_unlock.c b/sysdeps/ia64/nptl/pthread_spin_unlock.c
new file mode 100644
index 0000000000..87358fb614
--- /dev/null
+++ b/sysdeps/ia64/nptl/pthread_spin_unlock.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "pthreadP.h"
+
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+ __sync_lock_release ((int *) lock);
+ return 0;
+}
diff --git a/sysdeps/ia64/nptl/pthreaddef.h b/sysdeps/ia64/nptl/pthreaddef.h
new file mode 100644
index 0000000000..cf4763c268
--- /dev/null
+++ b/sysdeps/ia64/nptl/pthreaddef.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (32 * 1024 * 1024)
+
+/* IA-64 uses a normal stack and a register stack. */
+#define NEED_SEPARATE_REGISTER_STACK
+
+/* Required stack pointer alignment at beginning. */
+#define STACK_ALIGN 16
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 16384
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 16
+
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME __stack_pointer
+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))
diff --git a/sysdeps/ia64/nptl/shlib-versions b/sysdeps/ia64/nptl/shlib-versions
new file mode 100644
index 0000000000..90015eb151
--- /dev/null
+++ b/sysdeps/ia64/nptl/shlib-versions
@@ -0,0 +1 @@
+ia64.*-.*-linux.* libpthread=0 GLIBC_2.2
diff --git a/sysdeps/ia64/nptl/tcb-offsets.sym b/sysdeps/ia64/nptl/tcb-offsets.sym
new file mode 100644
index 0000000000..e1707ab1c8
--- /dev/null
+++ b/sysdeps/ia64/nptl/tcb-offsets.sym
@@ -0,0 +1,7 @@
+#include <sysdep.h>
+#include <tls.h>
+
+PID offsetof (struct pthread, pid) - TLS_PRE_TCB_SIZE
+TID offsetof (struct pthread, tid) - TLS_PRE_TCB_SIZE
+MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) - TLS_PRE_TCB_SIZE
+SYSINFO_OFFSET offsetof (tcbhead_t, __private)
diff --git a/sysdeps/ia64/nptl/tls.h b/sysdeps/ia64/nptl/tls.h
new file mode 100644
index 0000000000..279d107d39
--- /dev/null
+++ b/sysdeps/ia64/nptl/tls.h
@@ -0,0 +1,185 @@
+/* Definition for thread-local data handling. nptl/IA-64 version.
+ Copyright (C) 2003-2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _TLS_H
+#define _TLS_H 1
+
+#include <dl-sysdep.h>
+#ifndef __ASSEMBLER__
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+# include <stdlib.h>
+# include <list.h>
+
+
+/* Type for the dtv. */
+typedef union dtv
+{
+ size_t counter;
+ struct
+ {
+ void *val;
+ bool is_static;
+ } pointer;
+} dtv_t;
+
+
+typedef struct
+{
+ dtv_t *dtv;
+ void *__private;
+} tcbhead_t;
+
+register struct pthread *__thread_self __asm__("r13");
+
+# define TLS_MULTIPLE_THREADS_IN_TCB 1
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif
+
+
+/* Alignment requirement for the stack. */
+#define STACK_ALIGN 16
+
+#ifndef __ASSEMBLER__
+/* Get system call information. */
+# include <sysdep.h>
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB. */
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
+
+/* This is the size we need before TCB.
+ If there is not any room for uintptr_t stack_guard and
+ uintptr_t pointer_guard in struct pthread's final padding,
+ we need to put struct pthread 16 byte slower. */
+# define TLS_PRE_TCB_SIZE \
+ (sizeof (struct pthread) \
+ + (PTHREAD_STRUCT_END_PADDING < 2 * sizeof (uintptr_t) \
+ ? ((2 * sizeof (uintptr_t) + __alignof__ (struct pthread) - 1) \
+ & ~(__alignof__ (struct pthread) - 1)) \
+ : 0))
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN __alignof__ (struct pthread)
+
+/* The DTV is allocated at the TP; the TCB is placed elsewhere. */
+# define TLS_DTV_AT_TP 1
+
+/* Get the thread descriptor definition. */
+# include <nptl/descr.h>
+
+/* Install the dtv pointer. The pointer passed is to the element with
+ index -1 which contain the length. */
+# define INSTALL_DTV(descr, dtvp) \
+ ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
+
+/* Install new dtv for current thread. */
+# define INSTALL_NEW_DTV(DTV) \
+ (((tcbhead_t *)__thread_self)->dtv = (DTV))
+
+/* Return dtv of given thread descriptor. */
+# define GET_DTV(descr) \
+ (((tcbhead_t *) (descr))->dtv)
+
+#define THREAD_SELF_SYSINFO (((tcbhead_t *) __thread_self)->__private)
+#define THREAD_SYSINFO(pd) \
+ (((tcbhead_t *) ((char *) (pd) + TLS_PRE_TCB_SIZE))->__private)
+
+#if defined NEED_DL_SYSINFO
+# define INIT_SYSINFO THREAD_SELF_SYSINFO = (void *) GLRO(dl_sysinfo)
+#else
+# define INIT_SYSINFO NULL
+#endif
+
+/* Code to initially initialize the thread pointer. This might need
+ special attention since 'errno' is not yet available and if the
+ operation can cause a failure 'errno' must not be touched. */
+# define TLS_INIT_TP(thrdescr, secondcall) \
+ (__thread_self = (thrdescr), INIT_SYSINFO, NULL)
+
+/* Return the address of the dtv for the current thread. */
+# define THREAD_DTV() \
+ (((tcbhead_t *)__thread_self)->dtv)
+
+/* Return the thread descriptor for the current thread. */
+# define THREAD_SELF \
+ ((struct pthread *) ((char *) __thread_self - TLS_PRE_TCB_SIZE))
+
+/* Magic for libthread_db to know how to do THREAD_SELF. */
+# define DB_THREAD_SELF REGISTER (64, 64, 13 * 8, -TLS_PRE_TCB_SIZE)
+
+/* Access to data in the thread descriptor is easy. */
+#define THREAD_GETMEM(descr, member) \
+ descr->member
+#define THREAD_GETMEM_NC(descr, member, idx) \
+ descr->member[idx]
+#define THREAD_SETMEM(descr, member, value) \
+ descr->member = (value)
+#define THREAD_SETMEM_NC(descr, member, idx, value) \
+ descr->member[idx] = (value)
+
+/* Set the stack guard field in TCB head. */
+#define THREAD_SET_STACK_GUARD(value) \
+ (((uintptr_t *) __thread_self)[-1] = (value))
+#define THREAD_COPY_STACK_GUARD(descr) \
+ (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-1] \
+ = ((uintptr_t *) __thread_self)[-1])
+
+/* Set the pointer guard field in TCB head. */
+#define THREAD_GET_POINTER_GUARD() \
+ (((uintptr_t *) __thread_self)[-2])
+#define THREAD_SET_POINTER_GUARD(value) \
+ (((uintptr_t *) __thread_self)[-2] = (value))
+#define THREAD_COPY_POINTER_GUARD(descr) \
+ (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-2] \
+ = THREAD_GET_POINTER_GUARD ())
+
+/* Get and set the global scope generation counter in struct pthread. */
+#define THREAD_GSCOPE_FLAG_UNUSED 0
+#define THREAD_GSCOPE_FLAG_USED 1
+#define THREAD_GSCOPE_FLAG_WAIT 2
+#define THREAD_GSCOPE_RESET_FLAG() \
+ do \
+ { int __res \
+ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
+ THREAD_GSCOPE_FLAG_UNUSED); \
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
+ } \
+ while (0)
+#define THREAD_GSCOPE_SET_FLAG() \
+ do \
+ { \
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
+ atomic_write_barrier (); \
+ } \
+ while (0)
+#define THREAD_GSCOPE_WAIT() \
+ GL(dl_wait_lookup_done) ()
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* tls.h */