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authorMike Frysinger <vapier@gentoo.org>2006-01-31 05:05:15 +0000
committerMike Frysinger <vapier@gentoo.org>2006-01-31 05:05:15 +0000
commitcccc549ced940c85039c8ce263c8bb571f244afd (patch)
treeef77a870db7211ad6f511867fc56ee1a1a8b4c18 /libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa
parente73b1211737842732951f9b9049294ef732e1ef0 (diff)
initial import of latest linuxthreads
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa')
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Entries5
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Repository1
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/CVS/Root1
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/aio_cancel.c33
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Entries2
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Repository1
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/CVS/Root1
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h27
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/malloc-machine.h73
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c109
-rw-r--r--libpthread/linuxthreads/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h189
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 */