diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/powerpc')
9 files changed, 373 insertions, 45 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/local_lim.h new file mode 100644 index 0000000000..ab95fb57ee --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/local_lim.h @@ -0,0 +1,90 @@ +/* Minimum guaranteed maximum values for system limits. Linux/PPC version. + Copyright (C) 1993-1998,2000,2002-2004,2006 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; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* The kernel header pollutes the namespace with the NR_OPEN symbol + and defines LINK_MAX although filesystems have different maxima. A + similar thing is true for OPEN_MAX: the limit can be changed at + runtime and therefore the macro must not be defined. Remove this + after including the header if necessary. */ +#ifndef NR_OPEN +# define __undef_NR_OPEN +#endif +#ifndef LINK_MAX +# define __undef_LINK_MAX +#endif +#ifndef OPEN_MAX +# define __undef_OPEN_MAX +#endif + +/* The kernel sources contain a file with all the needed information. */ +#include <linux/limits.h> + +/* Have to remove NR_OPEN? */ +#ifdef __undef_NR_OPEN +# undef NR_OPEN +# undef __undef_NR_OPEN +#endif +/* Have to remove LINK_MAX? */ +#ifdef __undef_LINK_MAX +# undef LINK_MAX +# undef __undef_LINK_MAX +#endif +/* Have to remove OPEN_MAX? */ +#ifdef __undef_OPEN_MAX +# undef OPEN_MAX +# undef __undef_OPEN_MAX +#endif + +/* The number of data keys per process. */ +#define _POSIX_THREAD_KEYS_MAX 128 +/* This is the value this implementation supports. */ +#define PTHREAD_KEYS_MAX 1024 + +/* Controlling the iterations of destructors for thread-specific data. */ +#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 +/* Number of iterations this implementation does. */ +#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS + +/* The number of threads per process. */ +#define _POSIX_THREAD_THREADS_MAX 64 +/* We have no predefined limit on the number of threads. */ +#undef PTHREAD_THREADS_MAX + +/* Maximum amount by which a process can descrease its asynchronous I/O + priority level. */ +#define AIO_PRIO_DELTA_MAX 20 + +/* Minimum size for a thread. At least two pages for systems with 64k + pages. */ +#define PTHREAD_STACK_MIN 131072 + +/* Maximum number of timer expiration overruns. */ +#define DELAYTIMER_MAX 2147483647 + +/* Maximum tty name length. */ +#define TTY_NAME_MAX 32 + +/* Maximum login name length. This is arbitrary. */ +#define LOGIN_NAME_MAX 256 + +/* Maximum host name length. */ +#define HOST_NAME_MAX 64 + +/* Maximum message queue priority level. */ +#define MQ_PRIO_MAX 32768 diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h index 90c0695697..a7150f6aef 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h @@ -1,5 +1,5 @@ /* Machine-specific pthread type layouts. PowerPC version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. @@ -58,11 +58,25 @@ typedef union } pthread_attr_t; +#if __WORDSIZE == 64 +typedef struct __pthread_internal_list +{ + struct __pthread_internal_list *__prev; + struct __pthread_internal_list *__next; +} __pthread_list_t; +#else +typedef struct __pthread_internal_slist +{ + struct __pthread_internal_slist *__next; +} __pthread_slist_t; +#endif + + /* Data structures for mutex handling. The structure of the attribute type is deliberately not exposed. */ typedef union { - struct + struct __pthread_mutex_s { int __lock; unsigned int __count; @@ -73,10 +87,18 @@ typedef union /* KIND must stay at this position in the structure to maintain binary compatibility. */ int __kind; -#if __WORDSIZE != 64 +#if __WORDSIZE == 64 + int __spins; + __pthread_list_t __list; +# define __PTHREAD_MUTEX_HAVE_PREV 1 +#else unsigned int __nusers; + __extension__ union + { + int __spins; + __pthread_slist_t __list; + }; #endif - int __spins; } __data; char __size[__SIZEOF_PTHREAD_MUTEX_T]; long int __align; diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h index 2bee000730..0136b97595 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003. @@ -13,7 +13,7 @@ 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 Libr \ary; if not, write to the Free + 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. */ @@ -33,6 +33,11 @@ #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 #define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) +#define FUTEX_LOCK_PI 6 +#define FUTEX_UNLOCK_PI 7 +#define FUTEX_TRYLOCK_PI 8 /* Initializer for compatibility lock. */ #define LLL_MUTEX_LOCK_INITIALIZER (0) @@ -67,6 +72,17 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \ }) +#define lll_robust_mutex_dead(futexv) \ + do \ + { \ + INTERNAL_SYSCALL_DECL (__err); \ + int *__futexp = &(futexv); \ + \ + atomic_or (__futexp, FUTEX_OWNER_DIED); \ + INTERNAL_SYSCALL (futex, __err, 4, __futexp, FUTEX_WAKE, 1, 0); \ + } \ + while (0) + /* Returns non-zero if error happened, zero if success. */ #define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val) \ ({ \ @@ -79,16 +95,43 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, \ + (futexp), FUTEX_WAKE_OP, (nr_wake), \ + (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + #ifdef UP # define __lll_acq_instr "" # define __lll_rel_instr "" #else # define __lll_acq_instr "isync" -# define __lll_rel_instr "sync" +# ifdef _ARCH_PWR4 +/* + * Newer powerpc64 processors support the new "light weight" sync (lwsync) + * So if the build is using -mcpu=[power4,power5,power5+,970] we can + * safely use lwsync. + */ +# define __lll_rel_instr "lwsync" +# else +/* + * Older powerpc32 processors don't support the new "light weight" + * sync (lwsync). So the only safe option is to use normal sync + * for all powerpc32 applications. + */ +# define __lll_rel_instr "sync" +# endif #endif -/* Set *futex to 1 if it is 0, atomically. Returns the old value */ -#define __lll_trylock(futex) \ +/* Set *futex to ID if it is 0, atomically. Returns the old value */ +#define __lll_robust_trylock(futex, id) \ ({ int __val; \ __asm __volatile ("1: lwarx %0,0,%2\n" \ " cmpwi 0,%0,0\n" \ @@ -97,31 +140,26 @@ " bne- 1b\n" \ "2: " __lll_acq_instr \ : "=&r" (__val), "=m" (*futex) \ - : "r" (futex), "r" (1), "m" (*futex) \ + : "r" (futex), "r" (id), "m" (*futex) \ : "cr0", "memory"); \ __val; \ }) +#define lll_robust_mutex_trylock(lock, id) __lll_robust_trylock (&(lock), id) + +/* Set *futex to 1 if it is 0, atomically. Returns the old value */ +#define __lll_trylock(futex) __lll_robust_trylock (futex, 1) + #define lll_mutex_trylock(lock) __lll_trylock (&(lock)) /* Set *futex to 2 if it is 0, atomically. Returns the old value */ -#define __lll_cond_trylock(futex) \ - ({ int __val; \ - __asm __volatile ("1: lwarx %0,0,%2\n" \ - " cmpwi 0,%0,0\n" \ - " bne 2f\n" \ - " stwcx. %3,0,%2\n" \ - " bne- 1b\n" \ - "2: " __lll_acq_instr \ - : "=&r" (__val), "=m" (*futex) \ - : "r" (futex), "r" (2), "m" (*futex) \ - : "cr0", "memory"); \ - __val; \ - }) +#define __lll_cond_trylock(futex) __lll_robust_trylock (futex, 2) + #define lll_mutex_cond_trylock(lock) __lll_cond_trylock (&(lock)) extern void __lll_lock_wait (int *futex) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex) attribute_hidden; #define lll_mutex_lock(lock) \ (void) ({ \ @@ -131,6 +169,16 @@ extern void __lll_lock_wait (int *futex) attribute_hidden; __lll_lock_wait (__futex); \ }) +#define lll_robust_mutex_lock(lock, id) \ + ({ \ + int *__futex = &(lock); \ + int __val = 0; \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_lock_wait (__futex); \ + __val; \ + }) + #define lll_mutex_cond_lock(lock) \ (void) ({ \ int *__futex = &(lock); \ @@ -139,8 +187,22 @@ extern void __lll_lock_wait (int *futex) attribute_hidden; __lll_lock_wait (__futex); \ }) +#define lll_robust_mutex_cond_lock(lock, id) \ + ({ \ + int *__futex = &(lock); \ + int __val = 0; \ + int __id = id | FUTEX_WAITERS; \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, __id,\ + 0), 0)) \ + __val = __lll_robust_lock_wait (__futex); \ + __val; \ + }) + + extern int __lll_timedlock_wait (int *futex, const struct timespec *) attribute_hidden; +extern int __lll_robust_timedlock_wait + (int *futex, const struct timespec *) attribute_hidden; #define lll_mutex_timedlock(lock, abstime) \ ({ \ @@ -152,6 +214,16 @@ extern int __lll_timedlock_wait __val; \ }) +#define lll_robust_mutex_timedlock(lock, abstime, id) \ + ({ \ + int *__futex = &(lock); \ + int __val = 0; \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_timedlock_wait (__futex, abstime); \ + __val; \ + }) + #define lll_mutex_unlock(lock) \ ((void) ({ \ int *__futex = &(lock); \ @@ -160,6 +232,14 @@ extern int __lll_timedlock_wait lll_futex_wake (__futex, 1); \ })) +#define lll_robust_mutex_unlock(lock) \ + ((void) ({ \ + int *__futex = &(lock); \ + int __val = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1); \ + })) + #define lll_mutex_unlock_force(lock) \ ((void) ({ \ int *__futex = &(lock); \ diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S index e19579e842..675a997e97 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S @@ -1,3 +1,9 @@ -#define RESET_PID -#include <tcb-offsets.h> -#include <sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S> +/* We want an #include_next, but we are the main source file. + So, #include ourselves and in that incarnation we can use #include_next. */ +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include <clone.S> +#else +# define RESET_PID +# include_next <clone.S> +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h index 7f5ba4aeef..3752abc870 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -1,5 +1,5 @@ /* Cancellable system call stubs. Linux/PowerPC version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. @@ -15,8 +15,8 @@ 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. */ + Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA + 02110-1301 USA. */ #include <sysdep.h> #include <tls.h> @@ -30,7 +30,6 @@ # define PSEUDO(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ - cfi_startproc; \ SINGLE_THREAD_P; \ bne- .Lpseudo_cancel; \ .type __##syscall_name##_nocancel,@function; \ @@ -45,6 +44,7 @@ mflr 9; \ stw 9,52(1); \ cfi_offset (lr, 4); \ + CGOTSETUP; \ DOCARGS_##args; /* save syscall args around CENABLE. */ \ CENABLE; \ stw 3,16(1); /* store CENABLE return value (MASK). */ \ @@ -58,10 +58,10 @@ lwz 4,52(1); \ lwz 0,12(1); /* restore CR/R3. */ \ lwz 3,8(1); \ + CGOTRESTORE; \ mtlr 4; \ mtcr 0; \ - addi 1,1,48; \ - cfi_endproc; + addi 1,1,48; # define DOCARGS_0 # define UNDOCARGS_0 @@ -84,15 +84,30 @@ # define DOCARGS_6 stw 8,40(1); DOCARGS_5 # define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 +# define CGOTSETUP +# define CGOTRESTORE + # ifdef IS_IN_libpthread -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# define CENABLE bl __pthread_enable_asynccancel@local +# define CDISABLE bl __pthread_disable_asynccancel@local # elif !defined NOT_IN_libc -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# define CENABLE bl __libc_enable_asynccancel@local +# define CDISABLE bl __libc_disable_asynccancel@local # elif defined IS_IN_librt # define CENABLE bl JUMPTARGET(__librt_enable_asynccancel) # define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel) +# if defined HAVE_AS_REL16 && defined PIC +# undef CGOTSETUP +# define CGOTSETUP \ + bcl 20,31,1f; \ + 1: stw 30,44(1); \ + mflr 30; \ + addis 30,30,_GLOBAL_OFFSET_TABLE-1b@ha; \ + addi 30,30,_GLOBAL_OFFSET_TABLE-1b@l +# undef CGOTRESTORE +# define CGOTRESTORE \ + lwz 30,44(1) +# endif # else # error Unsupported library # endif @@ -113,3 +128,9 @@ # define NO_CANCELLATION 1 #endif + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S index f87adf4737..675a997e97 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S @@ -1,3 +1,9 @@ -#define RESET_PID -#include <tcb-offsets.h> -#include <sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S> +/* We want an #include_next, but we are the main source file. + So, #include ourselves and in that incarnation we can use #include_next. */ +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include <clone.S> +#else +# define RESET_PID +# include_next <clone.S> +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h index 226aaafdce..707765ab58 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h @@ -1,5 +1,5 @@ /* Cancellable system call stubs. Linux/PowerPC64 version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. @@ -15,8 +15,8 @@ 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. */ + Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA + 02110-1301 USA. */ #include <sysdep.h> #include <tls.h> @@ -36,7 +36,6 @@ # define PSEUDO(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ - cfi_startproc; \ SINGLE_THREAD_P; \ bne- .Lpseudo_cancel; \ .type DASHDASHPFX(syscall_name##_nocancel),@function; \ @@ -66,8 +65,7 @@ ld 3,64(1); \ mtlr 9; \ mtcr 0; \ - addi 1,1,128; \ - cfi_endproc; + addi 1,1,128; # define DOCARGS_0 # define UNDOCARGS_0 @@ -119,3 +117,9 @@ # define NO_CANCELLATION 1 #endif + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstack.c b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstack.c new file mode 100644 index 0000000000..8aa971ab9a --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstack.c @@ -0,0 +1,51 @@ +/* Copyright (C) 2002, 2003, 2006 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. */ + +#include <assert.h> +#include <errno.h> +#include <limits.h> +#include "pthreadP.h" + + +int +__pthread_attr_setstack (attr, stackaddr, stacksize) + pthread_attr_t *attr; + void *stackaddr; + size_t stacksize; +{ + struct pthread_attr *iattr; + + assert (sizeof (*attr) >= sizeof (struct pthread_attr)); + iattr = (struct pthread_attr *) attr; + + /* Catch invalid sizes. */ + if (stacksize < 16384) + return EINVAL; + +#ifdef EXTRA_PARAM_CHECKS + EXTRA_PARAM_CHECKS; +#endif + + iattr->stacksize = stacksize; + iattr->stackaddr = (char *) stackaddr + stacksize; + iattr->flags |= ATTR_FLAG_STACKADDR; + + return 0; +} +strong_alias (__pthread_attr_setstack, pthread_attr_setstack) diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstacksize.c b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstacksize.c new file mode 100644 index 0000000000..ea8c95981e --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_attr_setstacksize.c @@ -0,0 +1,48 @@ +/* Copyright (C) 2002, 2003, 2006 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. */ + +#include <assert.h> +#include <errno.h> +#include <limits.h> +#include "pthreadP.h" + + +int +__pthread_attr_setstacksize (attr, stacksize) + pthread_attr_t *attr; + size_t stacksize; +{ + struct pthread_attr *iattr; + + assert (sizeof (*attr) >= sizeof (struct pthread_attr)); + iattr = (struct pthread_attr *) attr; + + /* Catch invalid sizes. */ + if (stacksize < 16384) + return EINVAL; + + size_t ps = __getpagesize (); + if (stacksize < 2 * ps) + stacksize = 2 * ps; + + iattr->stacksize = stacksize; + + return 0; +} +strong_alias (__pthread_attr_setstacksize, pthread_attr_setstacksize) |