diff options
Diffstat (limited to 'linuxthreads/attr.c')
| -rw-r--r-- | linuxthreads/attr.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/linuxthreads/attr.c b/linuxthreads/attr.c index 58a7b69f94..177df90b98 100644 --- a/linuxthreads/attr.c +++ b/linuxthreads/attr.c @@ -220,7 +220,44 @@ int __pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize) attr->__stacksize = stacksize; return 0; } + +#if 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) { @@ -251,7 +288,41 @@ int __pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr, return err; } + +#if 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) |