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Diffstat (limited to 'libpthread/nptl/descr.h')
| -rw-r--r-- | libpthread/nptl/descr.h | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/libpthread/nptl/descr.h b/libpthread/nptl/descr.h deleted file mode 100644 index 1dd1cc506..000000000 --- a/libpthread/nptl/descr.h +++ /dev/null @@ -1,259 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - 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 _DESCR_H -#define _DESCR_H 1 - -#include <limits.h> -#include <sched.h> -#include <setjmp.h> -#include <stdbool.h> -#include <sys/types.h> -#include <list.h> -#include <lowlevellock.h> -#include <pthreaddef.h> -#include <dl-sysdep.h> -#include "../nptl_db/thread_db.h" -#include <tls.h> -#ifdef HAVE_FORCED_UNWIND -# include <unwind.h> -#endif -#define __need_res_state -#include <resolv.h> - -#ifndef TCB_ALIGNMENT -# define TCB_ALIGNMENT sizeof (double) -#endif - - -/* We keep thread specific data in a special data structure, a two-level - array. The top-level array contains pointers to dynamically allocated - arrays of a certain number of data pointers. So we can implement a - sparse array. Each dynamic second-level array has - PTHREAD_KEY_2NDLEVEL_SIZE - entries. This value shouldn't be too large. */ -#define PTHREAD_KEY_2NDLEVEL_SIZE 32 - -/* We need to address PTHREAD_KEYS_MAX key with PTHREAD_KEY_2NDLEVEL_SIZE - keys in each subarray. */ -#define PTHREAD_KEY_1STLEVEL_SIZE \ - ((PTHREAD_KEYS_MAX + PTHREAD_KEY_2NDLEVEL_SIZE - 1) \ - / PTHREAD_KEY_2NDLEVEL_SIZE) - - - - -/* Internal version of the buffer to store cancellation handler - information. */ -struct pthread_unwind_buf -{ - struct - { - __jmp_buf jmp_buf; - int mask_was_saved; - } cancel_jmp_buf[1]; - - union - { - /* This is the placeholder of the public version. */ - void *pad[4]; - - struct - { - /* Pointer to the previous cleanup buffer. */ - struct pthread_unwind_buf *prev; - - /* Backward compatibility: state of the old-style cleanup - handler at the time of the previous new-style cleanup handler - installment. */ - struct _pthread_cleanup_buffer *cleanup; - - /* Cancellation type before the push call. */ - int canceltype; - } data; - } priv; -}; - - -/* Opcodes and data types for communication with the signal handler to - change user/group IDs. */ -struct xid_command -{ - int syscall_no; - long id[3]; - volatile int cntr; -}; - - -/* Thread descriptor data structure. */ -struct pthread -{ - union - { -#if !TLS_DTV_AT_TP - /* This overlaps the TCB as used for TLS without threads (see tls.h). */ - tcbhead_t header; -#else - struct - { - int multiple_threads; - } header; -#endif - - /* This extra padding has no special purpose, and this structure layout - is private and subject to change without affecting the official ABI. - We just have it here in case it might be convenient for some - implementation-specific instrumentation hack or suchlike. */ - void *__padding[16]; - }; - - /* This descriptor's link on the `stack_used' or `__stack_user' list. */ - list_t list; - - /* Thread ID - which is also a 'is this thread descriptor (and - therefore stack) used' flag. */ - pid_t tid; - - /* Process ID - thread group ID in kernel speak. */ - pid_t pid; - - /* List of cleanup buffers. */ - struct _pthread_cleanup_buffer *cleanup; - - /* Unwind information. */ - struct pthread_unwind_buf *cleanup_jmp_buf; -#define HAVE_CLEANUP_JMP_BUF - - /* Flags determining processing of cancellation. */ - int cancelhandling; - /* Bit set if cancellation is disabled. */ -#define CANCELSTATE_BIT 0 -#define CANCELSTATE_BITMASK 0x01 - /* Bit set if asynchronous cancellation mode is selected. */ -#define CANCELTYPE_BIT 1 -#define CANCELTYPE_BITMASK 0x02 - /* Bit set if canceling has been initiated. */ -#define CANCELING_BIT 2 -#define CANCELING_BITMASK 0x04 - /* Bit set if canceled. */ -#define CANCELED_BIT 3 -#define CANCELED_BITMASK 0x08 - /* Bit set if thread is exiting. */ -#define EXITING_BIT 4 -#define EXITING_BITMASK 0x10 - /* Bit set if thread terminated and TCB is freed. */ -#define TERMINATED_BIT 5 -#define TERMINATED_BITMASK 0x20 - /* Mask for the rest. Helps the compiler to optimize. */ -#define CANCEL_RESTMASK 0xffffffc0 - -#define CANCEL_ENABLED_AND_CANCELED(value) \ - (((value) & (CANCELSTATE_BITMASK | CANCELED_BITMASK | EXITING_BITMASK \ - | CANCEL_RESTMASK | TERMINATED_BITMASK)) == CANCELED_BITMASK) -#define CANCEL_ENABLED_AND_CANCELED_AND_ASYNCHRONOUS(value) \ - (((value) & (CANCELSTATE_BITMASK | CANCELTYPE_BITMASK | CANCELED_BITMASK \ - | EXITING_BITMASK | CANCEL_RESTMASK | TERMINATED_BITMASK)) \ - == (CANCELTYPE_BITMASK | CANCELED_BITMASK)) - - /* We allocate one block of references here. This should be enough - to avoid allocating any memory dynamically for most applications. */ - struct pthread_key_data - { - /* Sequence number. We use uintptr_t to not require padding on - 32- and 64-bit machines. On 64-bit machines it helps to avoid - wrapping, too. */ - uintptr_t seq; - - /* Data pointer. */ - void *data; - } specific_1stblock[PTHREAD_KEY_2NDLEVEL_SIZE]; - - /* Flag which is set when specific data is set. */ - bool specific_used; - - /* Two-level array for the thread-specific data. */ - struct pthread_key_data *specific[PTHREAD_KEY_1STLEVEL_SIZE]; - - /* True if events must be reported. */ - bool report_events; - - /* True if the user provided the stack. */ - bool user_stack; - - /* True if thread must stop at startup time. */ - bool stopped_start; - - /* Lock to synchronize access to the descriptor. */ - lll_lock_t lock; - -#if HP_TIMING_AVAIL - /* Offset of the CPU clock at start thread start time. */ - hp_timing_t cpuclock_offset; -#endif - - /* If the thread waits to join another one the ID of the latter is - stored here. - - In case a thread is detached this field contains a pointer of the - TCB if the thread itself. This is something which cannot happen - in normal operation. */ - struct pthread *joinid; - /* Check whether a thread is detached. */ -#define IS_DETACHED(pd) ((pd)->joinid == (pd)) - - /* Flags. Including those copied from the thread attribute. */ - int flags; - - /* The result of the thread function. */ - void *result; - - /* Scheduling parameters for the new thread. */ - struct sched_param schedparam; - int schedpolicy; - - /* Start position of the code to be executed and the argument passed - to the function. */ - void *(*start_routine) (void *); - void *arg; - - /* Debug state. */ - td_eventbuf_t eventbuf; - /* Next descriptor with a pending event. */ - struct pthread *nextevent; - -#ifdef HAVE_FORCED_UNWIND - /* Machine-specific unwind info. */ - struct _Unwind_Exception exc; -#endif - - /* If nonzero pointer to area allocated for the stack and its - size. */ - void *stackblock; - size_t stackblock_size; - /* Size of the included guard area. */ - size_t guardsize; - /* This is what the user specified and what we will report. */ - size_t reported_guardsize; - - /* Resolver state. */ - struct __res_state res; -} __attribute ((aligned (TCB_ALIGNMENT))); - - -#endif /* descr.h */ |