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authorUlrich Drepper <drepper@redhat.com>2002-02-05 00:57:29 +0000
committerUlrich Drepper <drepper@redhat.com>2002-02-05 00:57:29 +0000
commit535b764df5ca722066c2db615190e6a70688c6a6 (patch)
tree06f6ba9853ac4e8f698fc1e3b0b4cb80ffd06bae /linuxthreads/internals.h
parent67ddea92542c12f2099a89dbc58a045a65bb7771 (diff)
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Update.
	* elf/rtld.c (_dl_start_final): Allocate TLS and initialize
	thread-pointer as soon as possible.
	* sysdeps/generic/ldsodefs.h: Include <tls.h>.  Define first TLS
	elements in rtld_global.
	* sysdeps/generic/tls.h: New file.
	* elf/Makefile (distribute): Add tls.h.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Add support for TLS
	relocations.  Not complete yet.

	* resolv/resolv.h: Allow user to define __need_res_state and only
	define __res_start structure then.
	* include/resolv.h: Only declare functions if _RESOLV_H_ is defined.
Diffstat (limited to 'linuxthreads/internals.h')
-rw-r--r--linuxthreads/internals.h141
1 files changed, 2 insertions, 139 deletions
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h
index 8297c781c8..e1768b4a1f 100644
--- a/linuxthreads/internals.h
+++ b/linuxthreads/internals.h
@@ -20,21 +20,15 @@
 /* Includes */
 
 #include <limits.h>
-#include <resolv.h>
-#include <setjmp.h>
-#include <signal.h>
 #include <unistd.h>
 #include <stackinfo.h>
-#include <sys/types.h>
-#include <bits/libc-tsd.h> /* for _LIBC_TSD_KEY_N */
+
+#include "descr.h"
 
 extern long int testandset (int *spinlock);
 extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 
-#include "pt-machine.h"
 #include "semaphore.h"
-#include "../linuxthreads_db/thread_dbP.h"
-#include <hp-timing.h>
 
 #ifndef THREAD_GETMEM
 # define THREAD_GETMEM(descr, member) descr->member
@@ -49,31 +43,6 @@ extern int __compare_and_swap (long int *p, long int oldval, long int newval);
 # define THREAD_SETMEM_NC(descr, member, value) descr->member = (value)
 #endif
 
-/* Arguments passed to thread creation routine */
-
-struct pthread_start_args {
-  void * (*start_routine)(void *); /* function to run */
-  void * arg;                   /* its argument */
-  sigset_t mask;                /* initial signal mask for thread */
-  int schedpolicy;              /* initial scheduling policy (if any) */
-  struct sched_param schedparam; /* initial scheduling parameters (if any) */
-};
-
-
-/* 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)
-
 typedef void (*destr_function)(void *);
 
 struct pthread_key_struct {
@@ -85,112 +54,6 @@ struct pthread_key_struct {
 #define PTHREAD_START_ARGS_INITIALIZER(fct) \
   { (void *(*) (void *)) fct, NULL, {{0, }}, 0, { 0 } }
 
-/* The type of thread descriptors */
-
-typedef struct _pthread_descr_struct * pthread_descr;
-
-/* Callback interface for removing the thread from waiting on an
-   object if it is cancelled while waiting or about to wait.
-   This hold a pointer to the object, and a pointer to a function
-   which ``extricates'' the thread from its enqueued state.
-   The function takes two arguments: pointer to the wait object,
-   and a pointer to the thread. It returns 1 if an extrication
-   actually occured, and hence the thread must also be signalled.
-   It returns 0 if the thread had already been extricated. */
-
-typedef struct _pthread_extricate_struct {
-    void *pu_object;
-    int (*pu_extricate_func)(void *, pthread_descr);
-} pthread_extricate_if;
-
-/* Atomic counter made possible by compare_and_swap */
-
-struct pthread_atomic {
-  long p_count;
-  int p_spinlock;
-};
-
-/* Context info for read write locks. The pthread_rwlock_info structure
-   is information about a lock that has been read-locked by the thread
-   in whose list this structure appears. The pthread_rwlock_context
-   is embedded in the thread context and contains a pointer to the
-   head of the list of lock info structures, as well as a count of
-   read locks that are untracked, because no info structure could be
-   allocated for them. */
-
-struct _pthread_rwlock_t;
-
-typedef struct _pthread_rwlock_info {
-  struct _pthread_rwlock_info *pr_next;
-  struct _pthread_rwlock_t *pr_lock;
-  int pr_lock_count;
-} pthread_readlock_info;
-
-struct _pthread_descr_struct {
-  union {
-    struct {
-      pthread_descr self;	/* Pointer to this structure */
-    } data;
-    void *__padding[16];
-  } p_header;
-  pthread_descr p_nextlive, p_prevlive;
-                                /* Double chaining of active threads */
-  pthread_descr p_nextwaiting;  /* Next element in the queue holding the thr */
-  pthread_descr p_nextlock;	/* can be on a queue and waiting on a lock */
-  pthread_t p_tid;              /* Thread identifier */
-  int p_pid;                    /* PID of Unix process */
-  int p_priority;               /* Thread priority (== 0 if not realtime) */
-  struct _pthread_fastlock * p_lock; /* Spinlock for synchronized accesses */
-  int p_signal;                 /* last signal received */
-  sigjmp_buf * p_signal_jmp;    /* where to siglongjmp on a signal or NULL */
-  sigjmp_buf * p_cancel_jmp;    /* where to siglongjmp on a cancel or NULL */
-  char p_terminated;            /* true if terminated e.g. by pthread_exit */
-  char p_detached;              /* true if detached */
-  char p_exited;                /* true if the assoc. process terminated */
-  void * p_retval;              /* placeholder for return value */
-  int p_retcode;                /* placeholder for return code */
-  pthread_descr p_joining;      /* thread joining on that thread or NULL */
-  struct _pthread_cleanup_buffer * p_cleanup; /* cleanup functions */
-  char p_cancelstate;           /* cancellation state */
-  char p_canceltype;            /* cancellation type (deferred/async) */
-  char p_canceled;              /* cancellation request pending */
-  int * p_errnop;               /* pointer to used errno variable */
-  int p_errno;                  /* error returned by last system call */
-  int * p_h_errnop;             /* pointer to used h_errno variable */
-  int p_h_errno;                /* error returned by last netdb function */
-  char * p_in_sighandler;       /* stack address of sighandler, or NULL */
-  char p_sigwaiting;            /* true if a sigwait() is in progress */
-  struct pthread_start_args p_start_args; /* arguments for thread creation */
-  void ** p_specific[PTHREAD_KEY_1STLEVEL_SIZE]; /* thread-specific data */
-  void * p_libc_specific[_LIBC_TSD_KEY_N]; /* thread-specific data for libc */
-  int p_userstack;		/* nonzero if the user provided the stack */
-  void *p_guardaddr;		/* address of guard area or NULL */
-  size_t p_guardsize;		/* size of guard area */
-  int p_nr;                     /* Index of descriptor in __pthread_handles */
-  int p_report_events;		/* Nonzero if events must be reported.  */
-  td_eventbuf_t p_eventbuf;     /* Data for event.  */
-  struct pthread_atomic p_resume_count; /* number of times restart() was
-					   called on thread */
-  char p_woken_by_cancel;       /* cancellation performed wakeup */
-  char p_condvar_avail;		/* flag if conditional variable became avail */
-  char p_sem_avail;             /* flag if semaphore became available */
-  pthread_extricate_if *p_extricate; /* See above */
-  pthread_readlock_info *p_readlock_list;  /* List of readlock info structs */
-  pthread_readlock_info *p_readlock_free;  /* Free list of structs */
-  int p_untracked_readlock_count;	/* Readlocks not tracked by list */
-  struct __res_state *p_resp;	/* Pointer to resolver state */
-  struct __res_state p_res;	/* per-thread resolver state */
-  int p_inheritsched;           /* copied from the thread attribute */
-#if HP_TIMING_AVAIL
-  hp_timing_t p_cpuclock_offset; /* Initial CPU clock for thread.  */
-#endif
-  /* New elements must be added at the end.  */
-} __attribute__ ((aligned(32))); /* We need to align the structure so that
-				    doubles are aligned properly.  This is 8
-				    bytes on MIPS and 16 bytes on MIPS64.
-				    32 bytes might give better cache
-				    utilization.  */
-
 
 /* The type of thread handles. */