Add pthread_attr_setstacksize(3) and pthread_attr_getstacksize(3).

libpthread/Makefile

@@ -12,7 +12,9 @@ CXXFLAGS:=$(CXXFLAGS) -Wall -Wextra -fno-exceptions -fno-rtti
 
 OBJS=\
 pthread_attr_destroy.o \
+pthread_attr_getstacksize.o \
 pthread_attr_init.o \
+pthread_attr_setstacksize.o \
 pthread_condattr_destroy.o \
 pthread_condattr_getclock.o \
 pthread_condattr_init.o \

libpthread/include/__/pthread.h

@@ -36,10 +36,12 @@ __BEGIN_DECLS
 #if defined(__is_sortix_libpthread)
 typedef struct
 {
+	__SIZE_TYPE__ stack_size;
 } __pthread_attr_t;
 #else
 typedef struct
 {
+	__SIZE_TYPE__ __pthread_stack_size;
 } __pthread_attr_t;
 #endif
 

libpthread/include/pthread.h

@@ -193,7 +193,8 @@ int pthread_attr_destroy(pthread_attr_t*);
 /* TODO: pthread_attr_getschedpolicy */
 /* TODO: pthread_attr_getscope */
 /* TODO: pthread_attr_getstack */
-/* TODO: pthread_attr_getstacksize */
+int pthread_attr_getstacksize(const pthread_attr_t* __restrict,
+                              size_t* __restrict);
 int pthread_attr_init(pthread_attr_t*);
 /* TODO: pthread_attr_setdetachstate */
 /* TODO: pthread_attr_setguardsize */
@@ -202,7 +203,7 @@ int pthread_attr_init(pthread_attr_t*);
 /* TODO: pthread_attr_setschedpolicy */
 /* TODO: pthread_attr_setscope */
 /* TODO: pthread_attr_setstack */
-/* TODO: pthread_attr_setstacksize */
+int pthread_attr_setstacksize(pthread_attr_t*, size_t);
 /* TODO: pthread_barrier_destroy */
 /* TODO: pthread_barrier_init */
 /* TODO: pthread_barrier_wait */

libpthread/pthread_attr_getstacksize.c++

@@ -0,0 +1,33 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+    This file is part of Sortix libpthread.
+
+    Sortix libpthread 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 3 of the License, or (at your
+    option) any later version.
+
+    Sortix libpthread 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 Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
+
+    pthread_attr_getstacksize.c++
+    Gets the requested stack size in a thread attribute object.
+
+*******************************************************************************/
+
+#include <pthread.h>
+
+extern "C"
+int pthread_attr_getstacksize(const pthread_attr_t* restrict attr,
+                              size_t* restrict stack_size_ptr)
+{
+	*stack_size_ptr = attr->stack_size;
+	return 0;
+}

libpthread/pthread_attr_init.c++

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
 
     This file is part of Sortix libpthread.
 
@@ -25,8 +25,11 @@
 #include <pthread.h>
 #include <string.h>
 
+static const unsigned long DEFAULT_STACK_SIZE = 64 * 1024;
+
 extern "C" int pthread_attr_init(pthread_attr_t* attr)
 {
 	memset(attr, 0, sizeof(*attr));
+	attr->stack_size = DEFAULT_STACK_SIZE;
 	return 0;
 }

libpthread/pthread_attr_setstacksize.c++

@@ -0,0 +1,31 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+    This file is part of Sortix libpthread.
+
+    Sortix libpthread 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 3 of the License, or (at your
+    option) any later version.
+
+    Sortix libpthread 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 Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
+
+    pthread_attr_setstacksize.c++
+    Sets the requested stack size in a thread attribute object.
+
+*******************************************************************************/
+
+#include <pthread.h>
+
+extern "C" int pthread_attr_setstacksize(pthread_attr_t* attr, size_t stack_size)
+{
+	attr->stack_size = stack_size;
+	return 0;
+}

libpthread/pthread_create.c++

@@ -121,8 +121,6 @@ static void setup_thread_state(struct pthread* thread, tforkregs_t* regs)
 }
 #endif
 
-static const unsigned long DEFAULT_STACK_SIZE = 64 * 1024;
-
 extern "C"
 {
 	pthread_mutex_t __pthread_num_threads_lock = PTHREAD_MUTEX_INITIALIZER;
@@ -131,12 +129,19 @@ extern "C"
 
 extern "C"
 int pthread_create(pthread_t* restrict thread_ptr,
-                   const pthread_attr_t* restrict /*attr*/,
+                   const pthread_attr_t* restrict attr,
                    void* (*entry_function)(void*),
                    void* restrict entry_cookie)
 {
 	assert(thread_ptr);
 
+	pthread_attr_t default_attr;
+	if ( !attr )
+	{
+		pthread_attr_init(&default_attr);
+		attr = &default_attr;
+	}
+
 	struct pthread* self = pthread_self();
 
 	// We can't create a thread local storage copy (and thus a new thread) if
@@ -204,7 +209,7 @@ int pthread_create(pthread_t* restrict thread_ptr,
 	// Set up a stack for the new thread.
 	int stack_prot = PROT_READ | PROT_WRITE;
 	int stack_flags = MAP_PRIVATE | MAP_ANONYMOUS;
-	thread->uthread.stack_size = DEFAULT_STACK_SIZE;
+	thread->uthread.stack_size = attr->stack_size;
 	thread->uthread.stack_mmap =
 		mmap(NULL, thread->uthread.stack_size, stack_prot, stack_flags, -1, 0);
 	if ( thread->uthread.stack_mmap == MAP_FAILED )