mirror of
git://sourceware.org/git/glibc.git
synced 2025-03-31 14:01:18 +08:00
Update.
2003-09-27 Wolfram Gloger <wg@malloc.de> * malloc/malloc.c: Include <malloc-machine.h> earlier instead of "thread-m.h", so that default parameters can be overridden in a system-specific malloc-machine.h. Remove extra ; from extern "C" closing brace. * sysdeps/generic/malloc-machine.h: New file. * sysdeps/mach/hurd/malloc-machine.h: New file. * malloc/thread-m.h: Removed. * malloc/Makefile: Remove CFLAGS-malloc.c parameter addition, it is in sysdeps/generic/malloc-machine.h now. * elf/dl-reloc.c (_dl_allocate_static_tls): Move definition of variables only used if TLS_TCB_AT_TP is defined into the #if branch.
This commit is contained in:
Ulrich Drepper
parent
28f532c89a
commit
3c6904fb49
16
ChangeLog
16
ChangeLog
@ -1,5 +1,21 @@
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2003-09-27 Wolfram Gloger <wg@malloc.de>
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* malloc/malloc.c: Include <malloc-machine.h> earlier instead of
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"thread-m.h", so that default parameters can be overridden in a
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system-specific malloc-machine.h. Remove extra ; from extern "C"
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closing brace.
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* sysdeps/generic/malloc-machine.h: New file.
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* sysdeps/mach/hurd/malloc-machine.h: New file.
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* malloc/thread-m.h: Removed.
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* malloc/Makefile: Remove CFLAGS-malloc.c parameter addition, it
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is in sysdeps/generic/malloc-machine.h now.
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2003-09-29 Ulrich Drepper <drepper@redhat.com>
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* elf/dl-reloc.c (_dl_allocate_static_tls): Move definition of
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variables only used if TLS_TCB_AT_TP is defined into the #if
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branch.
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* sysdeps/unix/sysv/linux/sys/sysmacros.h: Add __extension__ as
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well to cover using long long in C90.
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@ -51,9 +51,6 @@ _dl_allocate_static_tls (struct link_map *map)
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size_t offset;
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size_t used;
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size_t check;
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size_t freebytes;
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size_t n;
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size_t blsize;
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/* If the alignment requirements are too high fail. */
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if (map->l_tls_align > GL(dl_tls_static_align))
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@ -64,6 +61,10 @@ cannot allocate memory in static TLS block"));
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}
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# if TLS_TCB_AT_TP
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size_t freebytes;
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size_t n;
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size_t blsize;
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freebytes = GL(dl_tls_static_size) - GL(dl_tls_static_used) - TLS_TCB_SIZE;
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blsize = map->l_tls_blocksize + map->l_tls_firstbyte_offset;
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@ -56,7 +56,6 @@ aux := set-freeres thread-freeres
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include ../Makeconfig
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CFLAGS-malloc.c += -DDEFAULT_TOP_PAD=131072
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CPPFLAGS-memusagestat = -DNOT_IN_libc
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# The Perl script to analyze the output of the mtrace functions.
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@ -255,6 +255,8 @@
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#include <sys/types.h>
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#endif
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#include <malloc-machine.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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@ -1443,11 +1445,10 @@ int __posix_memalign(void **, size_t, size_t);
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#endif
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#ifdef __cplusplus
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}; /* end of extern "C" */
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} /* end of extern "C" */
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#endif
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#include <malloc.h>
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#include "thread-m.h"
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#ifndef BOUNDED_N
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#define BOUNDED_N(ptr, sz) (ptr)
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@ -1,322 +0,0 @@
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/* Basic platform-independent macro definitions for mutexes and
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thread-specific data.
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Copyright (C) 1996-1998,2000,2001,2002,2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Wolfram Gloger <wg@malloc.de>, 2001.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* $Id$
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One out of _LIBC, USE_PTHREADS, USE_THR or USE_SPROC should be
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defined, otherwise the token NO_THREADS and dummy implementations
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of the macros will be defined. */
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#ifndef _THREAD_M_H
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#define _THREAD_M_H
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#undef thread_atfork_static
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#if defined(_LIBC) /* The GNU C library, a special case of Posix threads */
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#include <atomic.h>
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#include <bits/libc-lock.h>
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#ifdef PTHREAD_MUTEX_INITIALIZER
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__libc_lock_define (typedef, mutex_t)
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#if defined(LLL_LOCK_INITIALIZER) && !defined(NOT_IN_libc)
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/* Assume NPTL. */
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#define mutex_init(m) __libc_lock_init (*(m))
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#define mutex_lock(m) __libc_lock_lock (*(m))
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#define mutex_trylock(m) __libc_lock_trylock (*(m))
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#define mutex_unlock(m) __libc_lock_unlock (*(m))
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#elif defined(__libc_maybe_call2)
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#define mutex_init(m) \
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__libc_maybe_call2 (pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
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#define mutex_lock(m) \
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__libc_maybe_call2 (pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
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#define mutex_trylock(m) \
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__libc_maybe_call2 (pthread_mutex_trylock, (m), \
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(*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
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#define mutex_unlock(m) \
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__libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0))
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#else
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#define mutex_init(m) \
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__libc_maybe_call (__pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
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#define mutex_lock(m) \
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__libc_maybe_call (__pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
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#define mutex_trylock(m) \
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__libc_maybe_call (__pthread_mutex_trylock, (m), \
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(*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
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#define mutex_unlock(m) \
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__libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))
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#endif
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/* This is defined by newer gcc version unique for each module. */
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extern void *__dso_handle __attribute__ ((__weak__));
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#include <fork.h>
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#ifdef SHARED
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# define thread_atfork(prepare, parent, child) \
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__register_atfork (prepare, parent, child, __dso_handle)
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#else
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# define thread_atfork(prepare, parent, child) \
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__register_atfork (prepare, parent, child, \
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&__dso_handle == NULL ? NULL : __dso_handle)
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#endif
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#elif defined(MUTEX_INITIALIZER)
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/* Assume hurd, with cthreads */
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/* Cthreads `mutex_t' is a pointer to a mutex, and malloc wants just the
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mutex itself. */
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#undef mutex_t
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#define mutex_t struct mutex
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#undef mutex_init
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#define mutex_init(m) (__mutex_init(m), 0)
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#undef mutex_lock
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#define mutex_lock(m) (__mutex_lock(m), 0)
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#undef mutex_unlock
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#define mutex_unlock(m) (__mutex_unlock(m), 0)
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#define mutex_trylock(m) (!__mutex_trylock(m))
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#define thread_atfork(prepare, parent, child) do {} while(0)
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#define thread_atfork_static(prepare, parent, child) \
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text_set_element(_hurd_fork_prepare_hook, prepare); \
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text_set_element(_hurd_fork_parent_hook, parent); \
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text_set_element(_hurd_fork_child_hook, child);
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/* No we're *not* using pthreads. */
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#define __pthread_initialize ((void (*)(void))0)
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#else
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#define NO_THREADS
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#endif /* MUTEX_INITIALIZER && PTHREAD_MUTEX_INITIALIZER */
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#ifndef NO_THREADS
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/* thread specific data for glibc */
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#include <bits/libc-tsd.h>
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typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
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__libc_tsd_define (static, MALLOC) /* declaration/common definition */
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#define tsd_key_create(key, destr) ((void) (key))
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#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data))
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#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC))
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#endif
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#elif defined(USE_PTHREADS) /* Posix threads */
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#include <pthread.h>
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/* mutex */
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#if (defined __i386__ || defined __x86_64__) && defined __GNUC__ && \
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!defined USE_NO_SPINLOCKS
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#include <time.h>
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/* Use fast inline spinlocks. */
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typedef struct {
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volatile unsigned int lock;
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int pad0_;
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} mutex_t;
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#define mutex_init(m) ((m)->lock = 0)
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static inline int mutex_lock(mutex_t *m) {
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int cnt = 0, r;
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struct timespec tm;
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for(;;) {
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__asm__ __volatile__
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("xchgl %0, %1"
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: "=r"(r), "=m"(m->lock)
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: "0"(1), "m"(m->lock)
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: "memory");
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if(!r)
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return 0;
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if(cnt < 50) {
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sched_yield();
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cnt++;
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} else {
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tm.tv_sec = 0;
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tm.tv_nsec = 2000001;
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nanosleep(&tm, NULL);
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cnt = 0;
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}
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}
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}
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static inline int mutex_trylock(mutex_t *m) {
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int r;
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__asm__ __volatile__
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("xchgl %0, %1"
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: "=r"(r), "=m"(m->lock)
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: "0"(1), "m"(m->lock)
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: "memory");
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return r;
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}
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static inline int mutex_unlock(mutex_t *m) {
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m->lock = 0;
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__asm __volatile ("" : "=m" (m->lock) : "0" (m->lock));
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return 0;
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}
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#else
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/* Normal pthread mutex. */
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typedef pthread_mutex_t mutex_t;
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#define mutex_init(m) pthread_mutex_init(m, NULL)
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#define mutex_lock(m) pthread_mutex_lock(m)
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#define mutex_trylock(m) pthread_mutex_trylock(m)
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#define mutex_unlock(m) pthread_mutex_unlock(m)
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#endif /* (__i386__ || __x86_64__) && __GNUC__ && !USE_NO_SPINLOCKS */
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/* thread specific data */
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#if defined(__sgi) || defined(USE_TSD_DATA_HACK)
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/* Hack for thread-specific data, e.g. on Irix 6.x. We can't use
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pthread_setspecific because that function calls malloc() itself.
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The hack only works when pthread_t can be converted to an integral
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type. */
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typedef void *tsd_key_t[256];
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#define tsd_key_create(key, destr) do { \
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int i; \
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for(i=0; i<256; i++) (*key)[i] = 0; \
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} while(0)
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#define tsd_setspecific(key, data) \
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(key[(unsigned)pthread_self() % 256] = (data))
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#define tsd_getspecific(key, vptr) \
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(vptr = key[(unsigned)pthread_self() % 256])
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#else
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|
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typedef pthread_key_t tsd_key_t;
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|
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#define tsd_key_create(key, destr) pthread_key_create(key, destr)
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#define tsd_setspecific(key, data) pthread_setspecific(key, data)
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#define tsd_getspecific(key, vptr) (vptr = pthread_getspecific(key))
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#endif
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|
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/* at fork */
|
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#define thread_atfork(prepare, parent, child) \
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pthread_atfork(prepare, parent, child)
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|
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#elif USE_THR /* Solaris threads */
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|
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#include <thread.h>
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|
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#define mutex_init(m) mutex_init(m, USYNC_THREAD, NULL)
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|
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/*
|
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* Hack for thread-specific data on Solaris. We can't use thr_setspecific
|
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* because that function calls malloc() itself.
|
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*/
|
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typedef void *tsd_key_t[256];
|
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#define tsd_key_create(key, destr) do { \
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int i; \
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for(i=0; i<256; i++) (*key)[i] = 0; \
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} while(0)
|
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#define tsd_setspecific(key, data) (key[(unsigned)thr_self() % 256] = (data))
|
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#define tsd_getspecific(key, vptr) (vptr = key[(unsigned)thr_self() % 256])
|
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|
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#define thread_atfork(prepare, parent, child) do {} while(0)
|
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|
||||
#elif USE_SPROC /* SGI sproc() threads */
|
||||
|
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#include <sys/wait.h>
|
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#include <sys/types.h>
|
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#include <sys/prctl.h>
|
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#include <abi_mutex.h>
|
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|
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typedef abilock_t mutex_t;
|
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|
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#define mutex_init(m) init_lock(m)
|
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#define mutex_lock(m) (spin_lock(m), 0)
|
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#define mutex_trylock(m) acquire_lock(m)
|
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#define mutex_unlock(m) release_lock(m)
|
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|
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typedef int tsd_key_t;
|
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int tsd_key_next;
|
||||
#define tsd_key_create(key, destr) ((*key) = tsd_key_next++)
|
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#define tsd_setspecific(key, data) (((void **)(&PRDA->usr_prda))[key] = data)
|
||||
#define tsd_getspecific(key, vptr) (vptr = ((void **)(&PRDA->usr_prda))[key])
|
||||
|
||||
#define thread_atfork(prepare, parent, child) do {} while(0)
|
||||
|
||||
#else /* no _LIBC or USE_... are defined */
|
||||
|
||||
#define NO_THREADS
|
||||
|
||||
#endif /* defined(_LIBC) */
|
||||
|
||||
#ifdef NO_THREADS /* No threads, provide dummy macros */
|
||||
|
||||
/* The mutex functions used to do absolutely nothing, i.e. lock,
|
||||
trylock and unlock would always just return 0. However, even
|
||||
without any concurrently active threads, a mutex can be used
|
||||
legitimately as an `in use' flag. To make the code that is
|
||||
protected by a mutex async-signal safe, these macros would have to
|
||||
be based on atomic test-and-set operations, for example. */
|
||||
typedef int mutex_t;
|
||||
|
||||
#define mutex_init(m) (*(m) = 0)
|
||||
#define mutex_lock(m) ((*(m) = 1), 0)
|
||||
#define mutex_trylock(m) (*(m) ? 1 : ((*(m) = 1), 0))
|
||||
#define mutex_unlock(m) (*(m) = 0)
|
||||
|
||||
typedef void *tsd_key_t;
|
||||
#define tsd_key_create(key, destr) do {} while(0)
|
||||
#define tsd_setspecific(key, data) ((key) = (data))
|
||||
#define tsd_getspecific(key, vptr) (vptr = (key))
|
||||
|
||||
#define thread_atfork(prepare, parent, child) do {} while(0)
|
||||
|
||||
#endif /* defined(NO_THREADS) */
|
||||
|
||||
#ifndef atomic_full_barrier
|
||||
# define atomic_full_barrier() __asm ("" ::: "memory")
|
||||
#endif
|
||||
|
||||
#ifndef atomic_read_barrier
|
||||
# define atomic_read_barrier() atomic_full_barrier ()
|
||||
#endif
|
||||
|
||||
#ifndef atomic_write_barrier
|
||||
# define atomic_write_barrier() atomic_full_barrier ()
|
||||
#endif
|
||||
|
||||
#endif /* !defined(_THREAD_M_H) */
|
||||
68
sysdeps/generic/malloc-machine.h
Normal file
68
sysdeps/generic/malloc-machine.h
Normal file
@ -0,0 +1,68 @@
|
||||
/* Basic platform-independent 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.
|
||||
|
||||
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 _GENERIC_MALLOC_MACHINE_H
|
||||
#define _GENERIC_MALLOC_MACHINE_H
|
||||
|
||||
#include <atomic.h>
|
||||
|
||||
#ifndef mutex_init /* No threads, provide dummy macros */
|
||||
|
||||
# define NO_THREADS
|
||||
|
||||
/* The mutex functions used to do absolutely nothing, i.e. lock,
|
||||
trylock and unlock would always just return 0. However, even
|
||||
without any concurrently active threads, a mutex can be used
|
||||
legitimately as an `in use' flag. To make the code that is
|
||||
protected by a mutex async-signal safe, these macros would have to
|
||||
be based on atomic test-and-set operations, for example. */
|
||||
typedef int mutex_t;
|
||||
|
||||
# define mutex_init(m) (*(m) = 0)
|
||||
# define mutex_lock(m) ((*(m) = 1), 0)
|
||||
# define mutex_trylock(m) (*(m) ? 1 : ((*(m) = 1), 0))
|
||||
# define mutex_unlock(m) (*(m) = 0)
|
||||
|
||||
typedef void *tsd_key_t;
|
||||
# define tsd_key_create(key, destr) do {} while(0)
|
||||
# define tsd_setspecific(key, data) ((key) = (data))
|
||||
# define tsd_getspecific(key, vptr) (vptr = (key))
|
||||
|
||||
# define thread_atfork(prepare, parent, child) do {} while(0)
|
||||
|
||||
#endif /* !defined mutex_init */
|
||||
|
||||
#ifndef atomic_full_barrier
|
||||
# define atomic_full_barrier() __asm ("" ::: "memory")
|
||||
#endif
|
||||
|
||||
#ifndef atomic_read_barrier
|
||||
# define atomic_read_barrier() atomic_full_barrier ()
|
||||
#endif
|
||||
|
||||
#ifndef atomic_write_barrier
|
||||
# define atomic_write_barrier() atomic_full_barrier ()
|
||||
#endif
|
||||
|
||||
#ifndef DEFAULT_TOP_PAD
|
||||
# define DEFAULT_TOP_PAD 131072
|
||||
#endif
|
||||
|
||||
#endif /* !defined(_GENERIC_MALLOC_MACHINE_H) */
|
||||
58
sysdeps/mach/hurd/malloc-machine.h
Normal file
58
sysdeps/mach/hurd/malloc-machine.h
Normal file
@ -0,0 +1,58 @@
|
||||
/* Basic platform-independent 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.
|
||||
|
||||
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>
|
||||
|
||||
/* Assume hurd, with cthreads */
|
||||
|
||||
/* Cthreads `mutex_t' is a pointer to a mutex, and malloc wants just the
|
||||
mutex itself. */
|
||||
#undef mutex_t
|
||||
#define mutex_t struct mutex
|
||||
|
||||
#undef mutex_init
|
||||
#define mutex_init(m) (__mutex_init(m), 0)
|
||||
|
||||
#undef mutex_lock
|
||||
#define mutex_lock(m) (__mutex_lock(m), 0)
|
||||
|
||||
#undef mutex_unlock
|
||||
#define mutex_unlock(m) (__mutex_unlock(m), 0)
|
||||
|
||||
#define mutex_trylock(m) (!__mutex_trylock(m))
|
||||
|
||||
#define thread_atfork(prepare, parent, child) do {} while(0)
|
||||
#define thread_atfork_static(prepare, parent, child) \
|
||||
text_set_element(_hurd_fork_prepare_hook, prepare); \
|
||||
text_set_element(_hurd_fork_parent_hook, parent); \
|
||||
text_set_element(_hurd_fork_child_hook, child);
|
||||
|
||||
/* No we're *not* using pthreads. */
|
||||
#define __pthread_initialize ((void (*)(void))0)
|
||||
|
||||
#include <sysdeps/generic/malloc-machine.h>
|
||||
|
||||
#endif /* !defined(_MALLOC_MACHINE_H) */
|
||||
Loading…
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Reference in New Issue
Block a user