svn commit: trunk/uClibc/libpthread/linuxthreads
vapier at uclibc.org
vapier at uclibc.org
Fri Sep 9 02:46:27 UTC 2005
Author: vapier
Date: 2005-09-08 19:46:25 -0700 (Thu, 08 Sep 2005)
New Revision: 11410
Log:
sync with glibc and macro out the strong_alias/versioned-symbols to cut down on the diffs
Modified:
trunk/uClibc/libpthread/linuxthreads/attr.c
Changeset:
Modified: trunk/uClibc/libpthread/linuxthreads/attr.c
===================================================================
--- trunk/uClibc/libpthread/linuxthreads/attr.c 2005-09-09 02:45:42 UTC (rev 11409)
+++ trunk/uClibc/libpthread/linuxthreads/attr.c 2005-09-09 02:46:25 UTC (rev 11410)
@@ -18,6 +18,8 @@
#define __getpagesize getpagesize
#define __sched_get_priority_min sched_get_priority_min
#define __sched_get_priority_max sched_get_priority_max
+#define __sched_getscheduler sched_getscheduler
+#define __sched_getparam sched_getparam
#include <features.h>
#define __USE_GNU
@@ -33,12 +35,27 @@
#include "pthread.h"
#include "internals.h"
+/* glibc uses strong aliases, we wont bother */
+#undef strong_alias
+#define strong_alias(sym, alias)
+#define __pthread_attr_destroy pthread_attr_destroy
+#define __pthread_attr_setdetachstate pthread_attr_setdetachstate
+#define __pthread_attr_getdetachstate pthread_attr_getdetachstate
+#define __pthread_attr_setschedparam pthread_attr_setschedparam
+#define __pthread_attr_getschedparam pthread_attr_getschedparam
+#define __pthread_attr_setschedpolicy pthread_attr_setschedpolicy
+#define __pthread_attr_getschedpolicy pthread_attr_getschedpolicy
+#define __pthread_attr_setinheritsched pthread_attr_setinheritsched
+#define __pthread_attr_getinheritsched pthread_attr_getinheritsched
+#define __pthread_attr_setscope pthread_attr_setscope
+#define __pthread_attr_getscope pthread_attr_getscope
+
/* NOTE: With uClibc I don't think we need this versioning stuff.
* Therefore, define the function pthread_attr_init() here using
* a strong symbol. */
-/*int __pthread_attr_init_2_1(pthread_attr_t *attr)*/
-int pthread_attr_init(pthread_attr_t *attr)
+#define __pthread_attr_init_2_1 pthread_attr_init
+int __pthread_attr_init_2_1(pthread_attr_t *attr)
{
size_t ps = __getpagesize ();
@@ -59,10 +76,11 @@
}
/* uClibc: leave out this for now. */
-#if DO_PTHREAD_VERSIONING_WITH_UCLIBC
-#if defined __HAVE_ELF__ && defined __PIC__ && defined DO_VERSIONING
-default_symbol_version (__pthread_attr_init_2_1, pthread_attr_init, GLIBC_2.1);
+#if 0
+versioned_symbol (libpthread, __pthread_attr_init_2_1, pthread_attr_init,
+ GLIBC_2_1);
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
int __pthread_attr_init_2_0(pthread_attr_t *attr)
{
attr->__detachstate = PTHREAD_CREATE_JOINABLE;
@@ -72,18 +90,18 @@
attr->__scope = PTHREAD_SCOPE_SYSTEM;
return 0;
}
-symbol_version (__pthread_attr_init_2_0, pthread_attr_init, GLIBC_2.0);
-#else
-strong_alias (__pthread_attr_init_2_1, pthread_attr_init)
+compat_symbol (libpthread, __pthread_attr_init_2_0, pthread_attr_init,
+ GLIBC_2_0);
#endif
-#endif /* DO_PTHREAD_VERSIONING_WITH_UCLIBC */
+#endif
-int pthread_attr_destroy(pthread_attr_t *attr)
+int __pthread_attr_destroy(pthread_attr_t *attr)
{
return 0;
}
+strong_alias (__pthread_attr_destroy, pthread_attr_destroy);
-int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
+int __pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
{
if (detachstate < PTHREAD_CREATE_JOINABLE ||
detachstate > PTHREAD_CREATE_DETACHED)
@@ -91,15 +109,17 @@
attr->__detachstate = detachstate;
return 0;
}
+strong_alias (__pthread_attr_setdetachstate, pthread_attr_setdetachstate);
-int pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
+int __pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
{
*detachstate = attr->__detachstate;
return 0;
}
+strong_alias (__pthread_attr_getdetachstate, pthread_attr_getdetachstate);
-int pthread_attr_setschedparam(pthread_attr_t *attr,
- const struct sched_param *param)
+int __pthread_attr_setschedparam(pthread_attr_t *attr,
+ const struct sched_param *param)
{
int max_prio = __sched_get_priority_max(attr->__schedpolicy);
int min_prio = __sched_get_priority_min(attr->__schedpolicy);
@@ -109,43 +129,49 @@
memcpy (&attr->__schedparam, param, sizeof (struct sched_param));
return 0;
}
+strong_alias (__pthread_attr_setschedparam, pthread_attr_setschedparam);
-int pthread_attr_getschedparam(const pthread_attr_t *attr,
- struct sched_param *param)
+int __pthread_attr_getschedparam(const pthread_attr_t *attr,
+ struct sched_param *param)
{
memcpy (param, &attr->__schedparam, sizeof (struct sched_param));
return 0;
}
+strong_alias (__pthread_attr_getschedparam, pthread_attr_getschedparam);
-int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
+int __pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
{
if (policy != SCHED_OTHER && policy != SCHED_FIFO && policy != SCHED_RR)
return EINVAL;
attr->__schedpolicy = policy;
return 0;
}
+strong_alias (__pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
-int pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
+int __pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
{
*policy = attr->__schedpolicy;
return 0;
}
+strong_alias (__pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
-int pthread_attr_setinheritsched(pthread_attr_t *attr, int inherit)
+int __pthread_attr_setinheritsched(pthread_attr_t *attr, int inherit)
{
if (inherit != PTHREAD_INHERIT_SCHED && inherit != PTHREAD_EXPLICIT_SCHED)
return EINVAL;
attr->__inheritsched = inherit;
return 0;
}
+strong_alias (__pthread_attr_setinheritsched, pthread_attr_setinheritsched);
-int pthread_attr_getinheritsched(const pthread_attr_t *attr, int *inherit)
+int __pthread_attr_getinheritsched(const pthread_attr_t *attr, int *inherit)
{
*inherit = attr->__inheritsched;
return 0;
}
+strong_alias (__pthread_attr_getinheritsched, pthread_attr_getinheritsched);
-int pthread_attr_setscope(pthread_attr_t *attr, int scope)
+int __pthread_attr_setscope(pthread_attr_t *attr, int scope)
{
switch (scope) {
case PTHREAD_SCOPE_SYSTEM:
@@ -157,12 +183,14 @@
return EINVAL;
}
}
+strong_alias (__pthread_attr_setscope, pthread_attr_setscope);
-int pthread_attr_getscope(const pthread_attr_t *attr, int *scope)
+int __pthread_attr_getscope(const pthread_attr_t *attr, int *scope)
{
*scope = attr->__scope;
return 0;
}
+strong_alias (__pthread_attr_getscope, pthread_attr_getscope);
int __pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
{
@@ -206,6 +234,7 @@
link_warning (pthread_attr_getstackaddr,
"the use of `pthread_attr_getstackaddr' is deprecated, use `pthread_attr_getstack'")
+
int __pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
{
#ifdef FLOATING_STACKS
@@ -230,8 +259,46 @@
attr->__stacksize = stacksize;
return 0;
}
+
+/* Don't bother with this version stuff in uClibc */
+#if 1 /*PTHREAD_STACK_MIN == 16384*/
weak_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize)
+#else
+versioned_symbol (libpthread, __pthread_attr_setstacksize,
+ pthread_attr_setstacksize, GLIBC_2_3_3);
+# if SHLIB_COMPAT(libpthread, GLIBC_2_1, GLIBC_2_3_3)
+
+int __old_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
+{
+# ifdef FLOATING_STACKS
+ /* We have to check against the maximum allowed stack size. This is no
+ problem if the manager is already started and we determined it. If
+ this hasn't happened, we have to find the limit outself. */
+ if (__pthread_max_stacksize == 0)
+ __pthread_init_max_stacksize ();
+
+ if (stacksize > __pthread_max_stacksize)
+ return EINVAL;
+# else
+ /* We have a fixed size limit. */
+ if (stacksize > STACK_SIZE)
+ return EINVAL;
+# endif
+
+ /* We don't accept value smaller than old PTHREAD_STACK_MIN. */
+ if (stacksize < 16384)
+ return EINVAL;
+
+ attr->__stacksize = stacksize;
+ return 0;
+}
+compat_symbol (libpthread, __old_pthread_attr_setstacksize,
+ pthread_attr_setstacksize, GLIBC_2_1);
+# endif
+#endif
+
+
int __pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
{
*stacksize = attr->__stacksize;
@@ -262,6 +329,42 @@
return err;
}
+/* Don't bother with this version stuff in uClibc */
+#if 1 /*PTHREAD_STACK_MIN == 16384*/
+weak_alias (__pthread_attr_setstack, pthread_attr_setstack)
+#else
+versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack,
+ GLIBC_2_3_3);
+# if SHLIB_COMPAT(libpthread, GLIBC_2_2, GLIBC_2_3_3)
+int __old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
+ size_t stacksize)
+{
+ int err;
+
+ if ((((uintptr_t) stackaddr)
+ & (__alignof__ (struct _pthread_descr_struct) - 1)) != 0)
+ err = EINVAL;
+ else
+ err = __old_pthread_attr_setstacksize (attr, stacksize);
+ if (err == 0)
+ {
+# ifndef _STACK_GROWS_UP
+ attr->__stackaddr = (char *) stackaddr + stacksize;
+# else
+ attr->__stackaddr = stackaddr;
+# endif
+ attr->__stackaddr_set = 1;
+ }
+
+ return err;
+}
+
+compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack,
+ GLIBC_2_2);
+
+# endif
+#endif
+
int __pthread_attr_getstack (const pthread_attr_t *attr, void **stackaddr,
size_t *stacksize)
{
@@ -277,3 +380,140 @@
return 0;
}
weak_alias (__pthread_attr_getstack, pthread_attr_getstack)
+
+/* can't fully support this just yet */
+#if 0
+int pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
+{
+ pthread_handle handle = thread_handle (thread);
+ pthread_descr descr;
+ int ret = 0;
+
+ if (handle == NULL)
+ return ENOENT;
+
+ descr = handle->h_descr;
+
+ attr->__detachstate = (descr->p_detached
+ ? PTHREAD_CREATE_DETACHED
+ : PTHREAD_CREATE_JOINABLE);
+
+ attr->__schedpolicy = __sched_getscheduler (descr->p_pid);
+ if (attr->__schedpolicy == -1)
+ return errno;
+
+ if (__sched_getparam (descr->p_pid,
+ (struct sched_param *) &attr->__schedparam) != 0)
+ return errno;
+
+ attr->__inheritsched = descr->p_inheritsched;
+ attr->__scope = PTHREAD_SCOPE_SYSTEM;
+
+#ifdef _STACK_GROWS_DOWN
+# ifdef USE_TLS
+ attr->__stacksize = descr->p_stackaddr - (char *)descr->p_guardaddr
+ - descr->p_guardsize;
+# else
+ attr->__stacksize = (char *)(descr + 1) - (char *)descr->p_guardaddr
+ - descr->p_guardsize;
+# endif
+#else
+# ifdef USE_TLS
+ attr->__stacksize = (char *)descr->p_guardaddr - descr->p_stackaddr;
+# else
+ attr->__stacksize = (char *)descr->p_guardaddr - (char *)descr;
+# endif
+#endif
+ attr->__guardsize = descr->p_guardsize;
+ attr->__stackaddr_set = descr->p_userstack;
+#ifdef NEED_SEPARATE_REGISTER_STACK
+ if (descr->p_userstack == 0)
+ attr->__stacksize *= 2;
+ /* XXX This is awkward. The guard pages are in the middle of the
+ two stacks. We must count the guard size in the stack size since
+ otherwise the range of the stack area cannot be computed. */
+ attr->__stacksize += attr->__guardsize;
+#endif
+#ifdef USE_TLS
+ attr->__stackaddr = descr->p_stackaddr;
+#else
+# ifndef _STACK_GROWS_UP
+ attr->__stackaddr = (char *)(descr + 1);
+# else
+ attr->__stackaddr = (char *)descr;
+# endif
+#endif
+
+#ifdef USE_TLS
+ if (attr->__stackaddr == NULL)
+#else
+ if (descr == &__pthread_initial_thread)
+#endif
+ {
+ /* Stack size limit. */
+ struct rlimit rl;
+
+ /* The safest way to get the top of the stack is to read
+ /proc/self/maps and locate the line into which
+ __libc_stack_end falls. */
+ FILE *fp = fopen ("/proc/self/maps", "rc");
+ if (fp == NULL)
+ ret = errno;
+ /* We need the limit of the stack in any case. */
+ else if (getrlimit (RLIMIT_STACK, &rl) != 0)
+ ret = errno;
+ else
+ {
+ /* We need no locking. */
+ __fsetlocking (fp, FSETLOCKING_BYCALLER);
+
+ /* Until we found an entry (which should always be the case)
+ mark the result as a failure. */
+ ret = ENOENT;
+
+ char *line = NULL;
+ size_t linelen = 0;
+ uintptr_t last_to = 0;
+
+ while (! feof_unlocked (fp))
+ {
+ if (__getdelim (&line, &linelen, '\n', fp) <= 0)
+ break;
+
+ uintptr_t from;
+ uintptr_t to;
+ if (sscanf (line, "%" SCNxPTR "-%" SCNxPTR, &from, &to) != 2)
+ continue;
+ if (from <= (uintptr_t) __libc_stack_end
+ && (uintptr_t) __libc_stack_end < to)
+ {
+ /* Found the entry. Now we have the info we need. */
+ attr->__stacksize = rl.rlim_cur;
+#ifdef _STACK_GROWS_UP
+ /* Don't check to enforce a limit on the __stacksize */
+ attr->__stackaddr = (void *) from;
+#else
+ attr->__stackaddr = (void *) to;
+
+ /* The limit might be too high. */
+ if ((size_t) attr->__stacksize
+ > (size_t) attr->__stackaddr - last_to)
+ attr->__stacksize = (size_t) attr->__stackaddr - last_to;
+#endif
+
+ /* We succeed and no need to look further. */
+ ret = 0;
+ break;
+ }
+ last_to = to;
+ }
+
+ fclose (fp);
+ free (line);
+ }
+ }
+
+ return 0;
+
+}
+#endif
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