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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-06-12 09:32:53 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-06-17 07:54:22 -0500
commit556f529dabd3aa57ae1b40a1a5c8d5cc162d4104 (patch)
tree75fb8c4d1956280797a943d1b64fee3227db64db /nptl
parent4b266200764bc683613090da18af63fa43851051 (diff)
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PowerPC: Move powerpc code out of nptl/ subdirectory
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/powerpc/Makefile20
-rw-r--r--nptl/sysdeps/powerpc/pthread_spin_lock.c44
-rw-r--r--nptl/sysdeps/powerpc/pthread_spin_trylock.c42
-rw-r--r--nptl/sysdeps/powerpc/pthreaddef.h33
-rw-r--r--nptl/sysdeps/powerpc/tcb-offsets.sym23
-rw-r--r--nptl/sysdeps/powerpc/tls.h220
6 files changed, 0 insertions, 382 deletions
diff --git a/nptl/sysdeps/powerpc/Makefile b/nptl/sysdeps/powerpc/Makefile
deleted file mode 100644
index 0ecd371..0000000
--- a/nptl/sysdeps/powerpc/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-# 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
diff --git a/nptl/sysdeps/powerpc/pthread_spin_lock.c b/nptl/sysdeps/powerpc/pthread_spin_lock.c
deleted file mode 100644
index b8333c7..0000000
--- a/nptl/sysdeps/powerpc/pthread_spin_lock.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Copyright (C) 2003-2014 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, see
- <http://www.gnu.org/licenses/>. */
-
-#include "pthreadP.h"
-
-int
-pthread_spin_lock (lock)
- pthread_spinlock_t *lock;
-{
- unsigned int __tmp;
-
- asm volatile (
- "1: lwarx %0,0,%1\n"
- " cmpwi 0,%0,0\n"
- " bne- 2f\n"
- " stwcx. %2,0,%1\n"
- " bne- 2f\n"
- " isync\n"
- " .subsection 1\n"
- "2: lwzx %0,0,%1\n"
- " cmpwi 0,%0,0\n"
- " bne 2b\n"
- " b 1b\n"
- " .previous"
- : "=&r" (__tmp)
- : "r" (lock), "r" (1)
- : "cr0", "memory");
- return 0;
-}
diff --git a/nptl/sysdeps/powerpc/pthread_spin_trylock.c b/nptl/sysdeps/powerpc/pthread_spin_trylock.c
deleted file mode 100644
index 3131ae5..0000000
--- a/nptl/sysdeps/powerpc/pthread_spin_trylock.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Copyright (C) 2003-2014 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, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include "pthreadP.h"
-
-int
-pthread_spin_trylock (lock)
- pthread_spinlock_t *lock;
-{
- unsigned int old;
- int err = EBUSY;
-
- asm ("1: lwarx %0,0,%2\n"
- " cmpwi 0,%0,0\n"
- " bne 2f\n"
- " stwcx. %3,0,%2\n"
- " bne- 1b\n"
- " li %1,0\n"
- " isync\n"
- "2: "
- : "=&r" (old), "=&r" (err)
- : "r" (lock), "r" (1), "1" (err)
- : "cr0", "memory");
-
- return err;
-}
diff --git a/nptl/sysdeps/powerpc/pthreaddef.h b/nptl/sysdeps/powerpc/pthreaddef.h
deleted file mode 100644
index 5c6a0cd..0000000
--- a/nptl/sysdeps/powerpc/pthreaddef.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* 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 (4 * 1024 * 1024)
-
-/* Required stack pointer alignment at beginning. The ABI requires 16
- bytes (for both 32-bit and 64-bit PowerPC). */
-#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 __builtin_frame_address (0)
diff --git a/nptl/sysdeps/powerpc/tcb-offsets.sym b/nptl/sysdeps/powerpc/tcb-offsets.sym
deleted file mode 100644
index eac5b5c..0000000
--- a/nptl/sysdeps/powerpc/tcb-offsets.sym
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <sysdep.h>
-#include <tls.h>
-
---
-
--- Abuse tls.h macros to derive offsets relative to the thread register.
-# undef __thread_register
-# define __thread_register ((void *) 0)
-# define thread_offsetof(mem) ((ptrdiff_t) THREAD_SELF + offsetof (struct pthread, mem))
-
-
-#if TLS_MULTIPLE_THREADS_IN_TCB
-MULTIPLE_THREADS_OFFSET thread_offsetof (header.multiple_threads)
-#endif
-PID thread_offsetof (pid)
-TID thread_offsetof (tid)
-POINTER_GUARD (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
-TAR_SAVE (offsetof (tcbhead_t, tar_save) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
-DSO_SLOT1 (offsetof (tcbhead_t, dso_slot1) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
-DSO_SLOT2 (offsetof (tcbhead_t, dso_slot2) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
-#ifndef __ASSUME_PRIVATE_FUTEX
-PRIVATE_FUTEX_OFFSET thread_offsetof (header.private_futex)
-#endif
diff --git a/nptl/sysdeps/powerpc/tls.h b/nptl/sysdeps/powerpc/tls.h
deleted file mode 100644
index b80a5fb..0000000
--- a/nptl/sysdeps/powerpc/tls.h
+++ /dev/null
@@ -1,220 +0,0 @@
-/* Definition for thread-local data handling. NPTL/PowerPC 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>
-
-/* 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__ */
-
-
-#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
-
-/* We use the multiple_threads field in the pthread struct */
-#define TLS_MULTIPLE_THREADS_IN_TCB 1
-
-/* Get the thread descriptor definition. */
-# include <nptl/descr.h>
-
-
-/* The stack_guard is accessed directly by GCC -fstack-protector code,
- so it is a part of public ABI. The dtv and pointer_guard fields
- are private. */
-typedef struct
-{
- /* Reservation for Dynamic System Optimizer ABI. */
- uintptr_t dso_slot2;
- uintptr_t dso_slot1;
- /* Reservation for tar register (ISA 2.07). */
- uintptr_t tar_save;
- /* GCC split stack support. */
- void *__private_ss;
- /* Reservation for the Event-Based Branching ABI. */
- uintptr_t ebb_handler;
- uintptr_t ebb_ctx_pointer;
- uintptr_t ebb_reserved1;
- uintptr_t ebb_reserved2;
- uintptr_t pointer_guard;
- uintptr_t stack_guard;
- dtv_t *dtv;
-} tcbhead_t;
-
-/* This is the size of the initial TCB. */
-# define TLS_INIT_TCB_SIZE 0
-
-/* Alignment requirements for the initial TCB. */
-# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
-
-/* This is the size of the TCB. */
-# define TLS_TCB_SIZE 0
-
-/* 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) \
- + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
-
-# ifndef __powerpc64__
-/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
-register void *__thread_register __asm__ ("r2");
-# define PT_THREAD_POINTER PT_R2
-# else
-/* Register r13 (tp) is reserved by the ABI as "thread pointer". */
-register void *__thread_register __asm__ ("r13");
-# define PT_THREAD_POINTER PT_R13
-# endif
-
-/* The following assumes that TP (R2 or R13) points to the end of the
- TCB + 0x7000 (per the ABI). This implies that TCB address is
- TP - 0x7000. As we define TLS_DTV_AT_TP we can
- assume that the pthread struct is allocated immediately ahead of the
- TCB. This implies that the pthread_descr address is
- TP - (TLS_PRE_TCB_SIZE + 0x7000). */
-# define TLS_TCB_OFFSET 0x7000
-
-/* 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))[-1].dtv = dtvp + 1
-
-/* Install new dtv for current thread. */
-# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv))
-
-/* Return dtv of given thread descriptor. */
-# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))[-1].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) \
- (__thread_register = (void *) (tcbp) + TLS_TCB_OFFSET, NULL)
-
-/* Value passed to 'clone' for initialization of the thread register. */
-# define TLS_DEFINE_INIT_TP(tp, pd) \
- void *tp = (void *) (pd) + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE
-
-/* Return the address of the dtv for the current thread. */
-# define THREAD_DTV() \
- (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET))[-1].dtv)
-
-/* Return the thread descriptor for the current thread. */
-# define THREAD_SELF \
- ((struct pthread *) (__thread_register \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
-
-/* Magic for libthread_db to know how to do THREAD_SELF. */
-# define DB_THREAD_SELF \
- REGISTER (32, 32, PT_THREAD_POINTER * 4, \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) \
- REGISTER (64, 64, PT_THREAD_POINTER * 8, \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
-
-/* Read member of the thread descriptor directly. */
-# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
-
-/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
-# define THREAD_GETMEM_NC(descr, member, idx) \
- ((void)(descr), (THREAD_SELF)->member[idx])
-
-/* Set member of the thread descriptor directly. */
-# define THREAD_SETMEM(descr, member, value) \
- ((void)(descr), (THREAD_SELF)->member = (value))
-
-/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
-# define THREAD_SETMEM_NC(descr, member, idx, value) \
- ((void)(descr), (THREAD_SELF)->member[idx] = (value))
-
-/* Set the stack guard field in TCB head. */
-# define THREAD_SET_STACK_GUARD(value) \
- (((tcbhead_t *) ((char *) __thread_register \
- - TLS_TCB_OFFSET))[-1].stack_guard = (value))
-# define THREAD_COPY_STACK_GUARD(descr) \
- (((tcbhead_t *) ((char *) (descr) \
- + TLS_PRE_TCB_SIZE))[-1].stack_guard \
- = ((tcbhead_t *) ((char *) __thread_register \
- - TLS_TCB_OFFSET))[-1].stack_guard)
-
-/* Set the stack guard field in TCB head. */
-# define THREAD_GET_POINTER_GUARD() \
- (((tcbhead_t *) ((char *) __thread_register \
- - TLS_TCB_OFFSET))[-1].pointer_guard)
-# define THREAD_SET_POINTER_GUARD(value) \
- (THREAD_GET_POINTER_GUARD () = (value))
-# define THREAD_COPY_POINTER_GUARD(descr) \
- (((tcbhead_t *) ((char *) (descr) \
- + TLS_PRE_TCB_SIZE))[-1].pointer_guard \
- = THREAD_GET_POINTER_GUARD())
-
-/* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some
- different value to mean unset l_tls_offset. */
-# define NO_TLS_OFFSET -1
-
-/* 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 */