summary refs log tree commit diff
path: root/sysdeps/hppa/nptl
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/hppa/nptl')
-rw-r--r--sysdeps/hppa/nptl/Makefile20
-rw-r--r--sysdeps/hppa/nptl/jmpbuf-unwind.h30
-rw-r--r--sysdeps/hppa/nptl/pthread_spin_init.c28
-rw-r--r--sysdeps/hppa/nptl/pthread_spin_lock.c23
-rw-r--r--sysdeps/hppa/nptl/pthread_spin_unlock.c28
-rw-r--r--sysdeps/hppa/nptl/pthreaddef.h39
-rw-r--r--sysdeps/hppa/nptl/shlib-versions1
-rw-r--r--sysdeps/hppa/nptl/tcb-offsets.sym19
-rw-r--r--sysdeps/hppa/nptl/tls.h171
-rw-r--r--sysdeps/hppa/nptl/tst-oddstacklimit.c26
10 files changed, 385 insertions, 0 deletions
diff --git a/sysdeps/hppa/nptl/Makefile b/sysdeps/hppa/nptl/Makefile
new file mode 100644
index 0000000000..143850e6c8
--- /dev/null
+++ b/sysdeps/hppa/nptl/Makefile
@@ -0,0 +1,20 @@
+# Copyright (C) 2005-2014 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
diff --git a/sysdeps/hppa/nptl/jmpbuf-unwind.h b/sysdeps/hppa/nptl/jmpbuf-unwind.h
new file mode 100644
index 0000000000..01f5870694
--- /dev/null
+++ b/sysdeps/hppa/nptl/jmpbuf-unwind.h
@@ -0,0 +1,30 @@
+/* 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/>.  */
+
+#include <setjmp.h>
+#include <jmpbuf-offsets.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)(((unsigned long *) _jmpbuf)[JB_SP]) - (_adj))
+
+/* We use the normal longjmp for unwinding.  */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/sysdeps/hppa/nptl/pthread_spin_init.c b/sysdeps/hppa/nptl/pthread_spin_init.c
new file mode 100644
index 0000000000..c83669eb91
--- /dev/null
+++ b/sysdeps/hppa/nptl/pthread_spin_init.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2006-2014 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/>.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_init (pthread_spinlock_t *lock, int pshared)
+{
+  int tmp = 0;
+  /* This should be a memory barrier to newer compilers */
+  __asm__ __volatile__ ("stw,ma %1,0(%0)"
+                        : : "r" (lock), "r" (tmp) : "memory");
+  return 0;
+}
diff --git a/sysdeps/hppa/nptl/pthread_spin_lock.c b/sysdeps/hppa/nptl/pthread_spin_lock.c
new file mode 100644
index 0000000000..b29fc7cef8
--- /dev/null
+++ b/sysdeps/hppa/nptl/pthread_spin_lock.c
@@ -0,0 +1,23 @@
+/* Copyright (C) 2005-2014 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/>.  */
+
+#define SPIN_LOCK_READS_BETWEEN_CMPXCHG 1000
+
+/* We can't use the normal "#include <nptl/pthread_spin_lock.c>" because
+   it will resolve to this very file.  Using "sysdeps/.." as reference to the
+   top level directory does the job.  */
+#include <sysdeps/../nptl/pthread_spin_lock.c>
diff --git a/sysdeps/hppa/nptl/pthread_spin_unlock.c b/sysdeps/hppa/nptl/pthread_spin_unlock.c
new file mode 100644
index 0000000000..5a8aed8e38
--- /dev/null
+++ b/sysdeps/hppa/nptl/pthread_spin_unlock.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2005-2014 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/>.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+  int tmp = 0;
+  /* This should be a memory barrier to newer compilers */
+  __asm__ __volatile__ ("stw,ma %1,0(%0)"
+                        : : "r" (lock), "r" (tmp) : "memory");
+  return 0;
+}
diff --git a/sysdeps/hppa/nptl/pthreaddef.h b/sysdeps/hppa/nptl/pthreaddef.h
new file mode 100644
index 0000000000..ee8765a6f1
--- /dev/null
+++ b/sysdeps/hppa/nptl/pthreaddef.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 2002-2014 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	(8 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning.  */
+#define STACK_ALIGN		64
+
+/* Minimal stack size after allocating thread descriptor and guard size.  */
+#define MINIMAL_REST_STACK	2048
+
+/* Alignment requirement for TCB, note that this must be larger than STACK_ALIGN  */
+#define TCB_ALIGNMENT		STACK_ALIGN
+
+
+/* Location of current stack frame.  */
+#define CURRENT_STACK_FRAME  stack_pointer
+register char * stack_pointer __asm__ ("%r30");
+
+
+/* XXX Until we have a better place keep the definitions here.  */
+
+#define __exit_thread_inline(val) \
+  INLINE_SYSCALL (exit, 1, (val))
diff --git a/sysdeps/hppa/nptl/shlib-versions b/sysdeps/hppa/nptl/shlib-versions
new file mode 100644
index 0000000000..adc26364b1
--- /dev/null
+++ b/sysdeps/hppa/nptl/shlib-versions
@@ -0,0 +1 @@
+hppa.*-.*-linux.*      libpthread=0            GLIBC_2.2
diff --git a/sysdeps/hppa/nptl/tcb-offsets.sym b/sysdeps/hppa/nptl/tcb-offsets.sym
new file mode 100644
index 0000000000..f3cc82621a
--- /dev/null
+++ b/sysdeps/hppa/nptl/tcb-offsets.sym
@@ -0,0 +1,19 @@
+#include <sysdep.h>
+#include <tls.h>
+
+RESULT			offsetof (struct pthread, result)
+TID			offsetof (struct pthread, tid)
+PID			offsetof (struct pthread, pid)
+CANCELHANDLING		offsetof (struct pthread, cancelhandling)
+CLEANUP_JMP_BUF		offsetof (struct pthread, cleanup_jmp_buf)
+MULTIPLE_THREADS_OFFSET	offsetof (struct pthread, header.multiple_threads)
+TLS_PRE_TCB_SIZE	sizeof (struct pthread)
+MUTEX_FUTEX		offsetof (pthread_mutex_t, __data.__lock)
+
+-- Use a thread_offset when working with asm to make things simpler
+-- This way we get the offset of a member in the struct pthread that
+-- preceeds the thread pointer (which points to the dtv).
+#define thread_offsetof(mem)    (unsigned int)(offsetof(struct pthread, mem) - sizeof(struct pthread))
+PID_THREAD_OFFSET		thread_offsetof (pid)
+TID_THREAD_OFFSET		thread_offsetof (tid)
+MULTIPLE_THREADS_THREAD_OFFSET	thread_offsetof (header.multiple_threads)
diff --git a/sysdeps/hppa/nptl/tls.h b/sysdeps/hppa/nptl/tls.h
new file mode 100644
index 0000000000..e4dc197945
--- /dev/null
+++ b/sysdeps/hppa/nptl/tls.h
@@ -0,0 +1,171 @@
+/* Definition for thread-local data handling.  NPTL/hppa version.
+   Copyright (C) 2005-2014 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>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  struct
+  {
+    void *val;
+    bool is_static;
+  } pointer;
+} dtv_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+/* Signal that TLS support is available.  */
+#define USE_TLS	1
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* The TP points to the start of the thread blocks.  */
+# define TLS_DTV_AT_TP	1
+# define TLS_TCB_AT_TP	0
+
+/* Get the thread descriptor definition.  */
+# include <nptl/descr.h>
+
+typedef struct
+{
+  dtv_t *dtv;
+  void *private;
+} tcbhead_t;
+
+/* 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)
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN		__alignof__ (struct pthread)
+
+/* This is the size we need before TCB */
+# define TLS_PRE_TCB_SIZE	sizeof (struct pthread)
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+# define INSTALL_DTV(tcbp, dtvp) \
+  ((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1
+
+/* Install new dtv for current thread.  */
+# define INSTALL_NEW_DTV(dtv) \
+  ({ tcbhead_t *__tcbp = (tcbhead_t *)__get_cr27();	\
+	__tcbp->dtv = dtv;				\
+   })
+
+/* Return dtv of given thread descriptor.  */
+# define GET_DTV(tcbp) \
+  (((tcbhead_t *) (tcbp))->dtv)
+
+/* 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(tcbp, secondcall) \
+  ({ __set_cr27(tcbp); NULL; })
+
+/* Return the address of the dtv for the current thread.  */
+# define THREAD_DTV() \
+  ({ tcbhead_t *__tcbp = (tcbhead_t *)__get_cr27();	\
+	__tcbp->dtv;					\
+   })
+
+/* Return the thread descriptor for the current thread.  */
+# define THREAD_SELF \
+  ({ struct pthread *__self;			\
+	__self = __get_cr27();			\
+	__self - 1;				\
+   })
+
+/* Magic for libthread_db to know how to do THREAD_SELF.
+   Our thread pointer is stored in cr27.  See asm/elf.h for the offset into
+   elf_gregset_t.  The thread descriptor is sizeof (struct pthread) away.  */
+# define DB_THREAD_SELF \
+  REGISTER (32, 32, 53 * 4, -sizeof (struct pthread))
+
+/* 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)
+
+static inline struct pthread *__get_cr27(void)
+{
+  long cr27;
+  asm ("mfctl %%cr27, %0" : "=r" (cr27) : );
+  return (struct pthread *) cr27;
+}
+
+/* We write to cr27, clobber r26 as the input argument, and clobber
+   r31 as the link register.  */
+static inline void __set_cr27(struct pthread *cr27)
+{
+  asm ( "ble	0xe0(%%sr2, %%r0)\n\t"
+	"copy	%0, %%r26"
+	: : "r" (cr27) : "r26", "r31" );
+}
+
+/* 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 */
diff --git a/sysdeps/hppa/nptl/tst-oddstacklimit.c b/sysdeps/hppa/nptl/tst-oddstacklimit.c
new file mode 100644
index 0000000000..f65dbc8cec
--- /dev/null
+++ b/sysdeps/hppa/nptl/tst-oddstacklimit.c
@@ -0,0 +1,26 @@
+/* Test NPTL with stack limit that is not a multiple of the page size.
+   HPPA version.
+   Copyright (C) 2012-2014 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/>.  */
+
+/* This sets the stack resource limit to 8193kb, which is not a multiple
+   of the page size, and therefore an odd sized stack limit.  We override
+   this because the default is too small to run with.  */
+
+#define ODD_STACK_LIMIT (8193 * 1024)
+
+#include <sysdeps/../nptl/tst-oddstacklimit.c>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-15 22:20:08 +0000