initial import of latest linuxthreads

11 files changed, 442 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Entries b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Entries
new file mode 100644
index 000000000..e8f52d3d7
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Entries
@@ -0,0 +1,5 @@
+D/bits////
+/aio_cancel.c/1.1/Tue Nov 15 14:20:47 2005//
+/malloc-machine.h/1.1/Tue Nov 15 14:20:47 2005//
+/pt-initfini.c/1.3/Tue Nov 15 14:20:47 2005//
+/sysdep-cancel.h/1.1/Tue Nov 15 14:20:47 2005//
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Repository b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Repository
new file mode 100644
index 000000000..5ce63dd8e
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Repository
@@ -0,0 +1 @@
+ports/linuxthreads/sysdeps/unix/sysv/linux/hppa
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Root b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Root
new file mode 100644
index 000000000..ca45c5d4d
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Root
@@ -0,0 +1 @@
+:pserver:anoncvs@sources.redhat.com:/cvs/glibc
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c
new file mode 100644
index 000000000..0d6da8291
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c
@@ -0,0 +1,33 @@
+#include <shlib-compat.h>
+
+#define aio_cancel64 XXX
+#include <aio.h>
+#undef aio_cancel64
+#include <errno.h>
+
+extern __typeof (aio_cancel) __new_aio_cancel;
+extern __typeof (aio_cancel) __old_aio_cancel;
+
+#define aio_cancel	__new_aio_cancel
+
+#include <sysdeps/pthread/aio_cancel.c>
+
+#undef aio_cancel
+strong_alias (__new_aio_cancel, __new_aio_cancel64);
+versioned_symbol (librt, __new_aio_cancel, aio_cancel, GLIBC_2_3);
+versioned_symbol (librt, __new_aio_cancel64, aio_cancel64, GLIBC_2_3);
+
+#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_3)
+
+#undef ECANCELED
+#define aio_cancel	__old_aio_cancel
+#define ECANCELED	125
+
+#include <sysdeps/pthread/aio_cancel.c>
+
+#undef aio_cancel
+strong_alias (__old_aio_cancel, __old_aio_cancel64);
+compat_symbol (librt, __old_aio_cancel, aio_cancel, GLIBC_2_1);
+compat_symbol (librt, __old_aio_cancel64, aio_cancel64, GLIBC_2_1);
+
+#endif
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Entries b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Entries
new file mode 100644
index 000000000..6026a344a
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Entries
@@ -0,0 +1,2 @@
+/initspin.h/1.3/Tue Nov 15 14:20:47 2005//
+D
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Repository b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Repository
new file mode 100644
index 000000000..2c98e54a5
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Repository
@@ -0,0 +1 @@
+ports/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Root b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Root
new file mode 100644
index 000000000..ca45c5d4d
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Root
@@ -0,0 +1 @@
+:pserver:anoncvs@sources.redhat.com:/cvs/glibc
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
new file mode 100644
index 000000000..9b1340028
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h
@@ -0,0 +1,27 @@
+/* PA-RISC specific definitions for spinlock initializers.
+   Copyright (C) 2000, 2001 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; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Initial value of a spinlock.  PA-RISC only implements atomic load
+   and clear so this must be non-zero. */
+#define __LT_SPINLOCK_INIT 1
+
+/* Macros for lock initializers, using the above definition. */
+#define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
+#define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
+#define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h
new file mode 100644
index 000000000..817cf5922
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h
@@ -0,0 +1,73 @@
+/* HP-PARISC macro definitions for mutexes, thread-specific data 
+   and parameters for malloc.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 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.  */
+
+#ifndef _MALLOC_MACHINE_H
+#define _MALLOC_MACHINE_H
+
+#undef thread_atfork_static
+
+#include <atomic.h>
+#include <bits/libc-lock.h>
+
+__libc_lock_define (typedef, mutex_t)
+
+/* Since our lock structure does not tolerate being initialized to zero, we must
+   modify the standard function calls made by malloc */
+#  define mutex_init(m)		\
+	__libc_maybe_call (__pthread_mutex_init, (m, NULL), \
+		(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT),(*(int *)(m))) )
+#  define mutex_lock(m)		\
+	__libc_maybe_call (__pthread_mutex_lock, (m), \
+			(__load_and_clear(&((m)->__m_lock.__spinlock)), 0))
+#  define mutex_trylock(m)	\
+	__libc_maybe_call (__pthread_mutex_trylock, (m), \
+			(*(int *)(m) ? 1 : (__load_and_clear(&((m)->__m_lock.__spinlock)), 0)))
+#  define mutex_unlock(m)	\
+	__libc_maybe_call (__pthread_mutex_unlock, (m), \
+			(((m)->__m_lock.__spinlock = __LT_SPINLOCK_INIT), (*(int *)(m))) )
+	
+/* This is defined by newer gcc version unique for each module.  */
+extern void *__dso_handle __attribute__ ((__weak__));
+
+#include <fork.h>
+
+#ifdef SHARED
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child, __dso_handle)
+#else
+# define thread_atfork(prepare, parent, child) \
+   __register_atfork (prepare, parent, child,				      \
+		      &__dso_handle == NULL ? NULL : __dso_handle)
+#endif
+
+/* thread specific data for glibc */
+
+#include <bits/libc-tsd.h>
+
+typedef int tsd_key_t[1];	/* no key data structure, libc magic does it */
+__libc_tsd_define (static, MALLOC)	/* declaration/common definition */
+#define tsd_key_create(key, destr)	((void) (key))
+#define tsd_setspecific(key, data)	__libc_tsd_set (MALLOC, (data))
+#define tsd_getspecific(key, vptr)	((vptr) = __libc_tsd_get (MALLOC))
+
+#include <sysdeps/generic/malloc-machine.h>
+
+#endif /* !defined(_MALLOC_MACHINE_H) */
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
new file mode 100644
index 000000000..27f850cf8
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
@@ -0,0 +1,109 @@
+/* Special .init and .fini section support for HPPA.  Linuxthreads version.
+   Copyright (C) 2001, 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file.  (The Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   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; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This file is compiled into assembly code which is then munged by a sed
+   script into two files: crti.s and crtn.s.
+
+   * crti.s puts a function prologue at the beginning of the
+   .init and .fini sections and defines global symbols for
+   those addresses, so they can be called as functions.
+
+   * crtn.s puts the corresponding function epilogues
+   in the .init and .fini sections. */
+
+/* If we use the standard C version, the linkage table pointer won't
+   be properly preserved due to the splitting up of function prologues
+   and epilogues.  Therefore we write these in assembly to make sure
+   they do the right thing.  */
+
+__asm__ (
+"#include \"defs.h\"\n"
+"\n"
+"/*@HEADER_ENDS*/\n"
+"\n"
+"/*@_init_PROLOG_BEGINS*/\n"
+"	.section .init\n"
+"	.align 4\n"
+"	.globl _init\n"
+"	.type _init,@function\n"
+"_init:\n"
+"	stw	%rp,-20(%sp)\n"
+"	stwm	%r4,64(%sp)\n"
+"	stw	%r19,-32(%sp)\n"
+"	bl	__pthread_initialize_minimal,%rp\n"
+"	copy	%r19,%r4	/* delay slot */\n"
+"	copy	%r4,%r19\n"
+"/*@_init_PROLOG_ENDS*/\n"
+"\n"
+"/*@_init_EPILOG_BEGINS*/\n"
+"/* Here is the tail end of _init.  */\n"
+"	.section .init\n"
+"	ldw	-84(%sp),%rp\n"
+"	copy	%r4,%r19\n"
+"	bv	%r0(%rp)\n"
+"_end_init:\n"
+"	ldwm	-64(%sp),%r4\n"
+"\n"
+"/* Our very own unwind info, because the assembler can't handle\n"
+"   functions split into two or more pieces.  */\n"
+"	.section .PARISC.unwind,\"a\",@progbits\n"
+"	.extern _init\n"
+"	.word	_init, _end_init\n"
+"	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n"
+"\n"
+"/*@_init_EPILOG_ENDS*/\n"
+"\n"
+"/*@_fini_PROLOG_BEGINS*/\n"
+"	.section .fini\n"
+"	.align 4\n"
+"	.globl _fini\n"
+"	.type _fini,@function\n"
+"_fini:\n"
+"	stw	%rp,-20(%sp)\n"
+"	stwm	%r4,64(%sp)\n"
+"	stw	%r19,-32(%sp)\n"
+"	copy	%r19,%r4\n"
+"/*@_fini_PROLOG_ENDS*/\n"
+"\n"
+"/*@_fini_EPILOG_BEGINS*/\n"
+"	.section .fini\n"
+"	ldw	-84(%sp),%rp\n"
+"	copy	%r4,%r19\n"
+"	bv	%r0(%rp)\n"
+"_end_fini:\n"
+"	ldwm	-64(%sp),%r4\n"
+"\n"
+"	.section .PARISC.unwind,\"a\",@progbits\n"
+"	.extern _fini\n"
+"	.word	_fini, _end_fini\n"
+"	.byte	0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08\n"
+"\n"
+"/*@_fini_EPILOG_ENDS*/\n"
+"\n"
+"/*@TRAILER_BEGINS*/\n"
+);
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
new file mode 100644
index 000000000..134977e07
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h
@@ -0,0 +1,189 @@
+/* cancellable system calls for Linux/HPPA.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Carlos O'Donell <carlos@baldric.uwo.ca>, 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 <sysdep.h>
+#ifndef __ASSEMBLER__
+# include <linuxthreads/internals.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+# ifndef NO_ERROR
+#  define NO_ERROR -0x1000
+# endif
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				\
+  ENTRY (name)								\
+    SINGLE_THREAD_P					ASM_LINE_SEP	\
+    cmpib,<> 0,%ret0,Lpseudo_cancel			ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    DO_CALL(syscall_name, args)				ASM_LINE_SEP	\
+    /* DONE! */						ASM_LINE_SEP	\
+    bv 0(2)						ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+  Lpseudo_cancel:					ASM_LINE_SEP	\
+    /* store return ptr */				ASM_LINE_SEP	\
+    stw %rp, -20(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save syscall args */				ASM_LINE_SEP	\
+    PUSHARGS_##args /* MACRO */				ASM_LINE_SEP	\
+    STW_PIC						ASM_LINE_SEP	\
+    CENABLE /* FUNC CALL */				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* restore syscall args */				ASM_LINE_SEP	\
+    POPARGS_##args					ASM_LINE_SEP	\
+    /* save r4 in arg0 stack slot */			ASM_LINE_SEP	\
+    stw %r4, -36(%sr0,%sp)				ASM_LINE_SEP	\
+    /* save mask from cenable */			ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    ble 0x100(%sr2,%r0)					ASM_LINE_SEP    \
+    ldi SYS_ify (syscall_name), %r20			ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* pass mask as arg0 to cdisable */			ASM_LINE_SEP	\
+    copy %r4, %r26					ASM_LINE_SEP	\
+    copy %ret0, %r4					ASM_LINE_SEP	\
+    CDISABLE						ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    LDW_PIC						ASM_LINE_SEP	\
+    /* compare error */					ASM_LINE_SEP	\
+    ldi NO_ERROR,%r1					ASM_LINE_SEP	\
+    /* branch if no error */				ASM_LINE_SEP	\
+    cmpb,>>=,n %r1,%r4,Lpre_end				ASM_LINE_SEP	\
+    nop							ASM_LINE_SEP	\
+    SYSCALL_ERROR_HANDLER				ASM_LINE_SEP	\
+    ldo 64(%sp), %sp					ASM_LINE_SEP	\
+    ldo -64(%sp), %sp					ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    /* make syscall res value positive */		ASM_LINE_SEP	\
+    sub %r0, %r4, %r4					ASM_LINE_SEP	\
+    /* store into errno location */			ASM_LINE_SEP	\
+    stw %r4, 0(%sr0,%ret0)				ASM_LINE_SEP	\
+    /* return -1 */					ASM_LINE_SEP	\
+    ldo -1(%r0), %ret0					ASM_LINE_SEP	\
+  Lpre_end:						ASM_LINE_SEP	\
+    ldw -20(%sr0,%sp), %rp             			ASM_LINE_SEP	\
+    /* No need to LDW_PIC */				ASM_LINE_SEP	\
+    ldw -36(%sr0,%sp), %r4				ASM_LINE_SEP
+
+/* Save arguments into our frame */
+# define PUSHARGS_0	/* nothing to do */
+# define PUSHARGS_1	PUSHARGS_0 stw %r26, -36(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_2	PUSHARGS_1 stw %r25, -40(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_3	PUSHARGS_2 stw %r24, -44(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_4	PUSHARGS_3 stw %r23, -48(%sr0,%sp)	ASM_LINE_SEP
+# define PUSHARGS_5	PUSHARGS_4 /* Args are on the stack... */
+# define PUSHARGS_6	PUSHARGS_5
+
+/* Bring them back from the stack */
+# define POPARGS_0	/* nothing to do */
+# define POPARGS_1	POPARGS_0 ldw -36(%sr0,%sp), %r26	ASM_LINE_SEP
+# define POPARGS_2	POPARGS_1 ldw -40(%sr0,%sp), %r25	ASM_LINE_SEP
+# define POPARGS_3	POPARGS_2 ldw -44(%sr0,%sp), %r24	ASM_LINE_SEP
+# define POPARGS_4	POPARGS_3 ldw -48(%sr0,%sp), %r23	ASM_LINE_SEP
+# define POPARGS_5	POPARGS_4 ldw -52(%sr0,%sp), %r22	ASM_LINE_SEP
+# define POPARGS_6	POPARGS_5 ldw -54(%sr0,%sp), %r21	ASM_LINE_SEP
+
+# ifdef IS_IN_libpthread
+#  ifdef PIC
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP
+#  else
+#   define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \
+			bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP
+#  endif
+# elif !defined NOT_IN_libc
+#  ifdef PIC
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP
+#  else
+#   define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE	.import __libc_disable_asynccancel,code ASM_LINE_SEP \
+			bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP
+#  endif
+# else
+#  ifdef PIC
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP
+#  else
+#   define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP
+#   define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \
+			bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP
+#  endif
+# endif
+
+/* p_header.multiple_threads is +12 from the pthread_descr struct start,
+   We could have called __get_cr27() but we really want less overhead */
+# define MULTIPLE_THREADS_OFFSET 0xC
+
+/* cr27 has been initialized to 0x0 by kernel */
+# define NO_THREAD_CR27 0x0
+
+# ifdef IS_IN_libpthread
+#  define __local_multiple_threads __pthread_multiple_threads
+# elif !defined NOT_IN_libc
+#  define __local_multiple_threads __libc_multiple_threads
+# else
+#  define __local_multiple_threads __librt_multiple_threads
+# endif
+
+# ifndef __ASSEMBLER__
+ extern int __local_multiple_threads attribute_hidden;
+#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
+# else
+/* This ALT version requires newer kernel support */
+#  define SINGLE_THREAD_P_MFCTL						\
+	mfctl %cr27, %ret0					ASM_LINE_SEP	\
+	cmpib,= NO_THREAD_CR27,%ret0,Lstp			ASM_LINE_SEP	\
+	nop							ASM_LINE_SEP	\
+	ldw MULTIPLE_THREADS_OFFSET(%sr0,%ret0),%ret0		ASM_LINE_SEP	\
+ Lstp:								ASM_LINE_SEP
+#  ifdef PIC
+/* Slower version uses GOT to get value of __local_multiple_threads */
+#   define SINGLE_THREAD_P							\
+	addil LT%__local_multiple_threads, %r19			ASM_LINE_SEP	\
+	ldw RT%__local_multiple_threads(%sr0,%r1), %ret0	ASM_LINE_SEP	\
+	ldw 0(%sr0,%ret0), %ret0 				ASM_LINE_SEP
+#  else
+  /* Slow non-pic version using DP */
+#   define SINGLE_THREAD_P								\
+	addil LR%__local_multiple_threads-$global$,%r27  		ASM_LINE_SEP	\
+	ldw RR%__local_multiple_threads-$global$(%sr0,%r1),%ret0	ASM_LINE_SEP
+#  endif
+# endif
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow.  */
+# define SINGLE_THREAD_P (1)
+
+#endif
+/* !defined NOT_IN_libc || defined IS_IN_libpthread */