int main(void)
{
pthread_attr_t attr;
int rc;
/* Initialize attr */
rc = pthread_attr_init(&attr);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_init");
exit(PTS_UNRESOLVED);
}
/* Get the default stack_addr and stack_size value */
rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_getstack");
exit(PTS_UNRESOLVED);
}
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
stack_size = PTHREAD_STACK_MIN;
if (posix_memalign(&stack_addr, sysconf(_SC_PAGE_SIZE),
stack_size) != 0) {
perror(ERROR_PREFIX "out of memory while "
"allocating the stack memory");
exit(PTS_UNRESOLVED);
}
stack_addr = stack_addr + OFFSET;
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
if (rc != EINVAL) {
printf("The function didn't fail when stackaddr "
"lacks proper alignment\n");
}
stack_addr = stack_addr + OFFSET;
stack_size = PTHREAD_STACK_MIN + OFFSET;
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
if (rc != EINVAL) {
printf("The function didn't fail when (stackaddr + stacksize) "
"lacks proper alignment\n");
}
rc = pthread_attr_destroy(&attr);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_destroy");
exit(PTS_UNRESOLVED);
}
printf("Test PASSED\n");
return PTS_PASS;
}
void *nativeStackBase() {
pthread_attr_t attr;
size_t size;
void *addr;
pthread_attr_init(&attr);
pthread_attr_get_np(pthread_self(), &attr);
pthread_attr_getstack(&attr, &addr, &size);
return addr+size;
}
void
mono_threads_core_get_stack_bounds (guint8 **staddr, size_t *stsize)
{
pthread_attr_t attr;
*staddr = NULL;
*stsize = (size_t)-1;
pthread_getattr_np (pthread_self (), &attr);
pthread_attr_getstack (&attr, (void**)staddr, stsize);
pthread_attr_destroy (&attr);
}
static void pthread_attr_getstack_18908062_helper(void*) {
char local_variable;
pthread_attr_t attributes;
pthread_getattr_np(pthread_self(), &attributes);
void* stack_base;
size_t stack_size;
pthread_attr_getstack(&attributes, &stack_base, &stack_size);
// Test whether &local_variable is in [stack_base, stack_base + stack_size).
ASSERT_LE(reinterpret_cast<char*>(stack_base), &local_variable);
ASSERT_LT(&local_variable, reinterpret_cast<char*>(stack_base) + stack_size);
}
STATUS taskGetInfo(TASK_ID task_id, TASK_DESC *desc)
{
int vfirst, vlast, ret;
struct wind_task *task;
struct WIND_TCB *tcb;
pthread_attr_t attr;
size_t stacksize;
void *stackbase;
task = get_wind_task(task_id);
if (task == NULL) {
errno = S_objLib_OBJ_ID_ERROR;
return ERROR;
}
tcb = task->tcb;
desc->td_tid = task_id;
desc->td_priority = wind_task_get_priority(task);
desc->td_status = get_task_status(task);
desc->td_flags = tcb->flags;
strncpy(desc->td_name, task->name, sizeof(desc->td_name));
desc->td_entry = tcb->entry;
desc->td_errorStatus = *task->thobj.errno_pointer;
ret = pthread_getattr_np(task->thobj.tid, &attr);
put_wind_task(task);
/*
* If the target does not support pthread_getattr_np(), we are
* out of luck for determining the stack information. We just
* zero it.
*/
if (ret) {
/* No idea, buddy. */
desc->td_stacksize = 0;
desc->td_pStackBase = NULL;
} else {
pthread_attr_getstack(&attr, &stackbase, &stacksize);
desc->td_stacksize = stacksize;
desc->td_pStackBase = stackbase;
if (&vfirst < &vlast)
/* Stack grows upward. */
desc->td_pStackEnd = (caddr_t)stackbase + stacksize;
else
/* Stack grows downward. */
desc->td_pStackEnd = (caddr_t)stackbase - stacksize;
}
return OK;
}
static int
get_stack(void **addr, size_t *size)
{
#define CHECK_ERR(expr) \
{int err = (expr); if (err) return err;}
#if defined HAVE_PTHREAD_GETATTR_NP || defined HAVE_PTHREAD_ATTR_GET_NP
pthread_attr_t attr;
size_t guard = 0;
# ifdef HAVE_PTHREAD_GETATTR_NP
CHECK_ERR(pthread_getattr_np(pthread_self(), &attr));
# ifdef HAVE_PTHREAD_ATTR_GETSTACK
CHECK_ERR(pthread_attr_getstack(&attr, addr, size));
# else
CHECK_ERR(pthread_attr_getstackaddr(&attr, addr));
CHECK_ERR(pthread_attr_getstacksize(&attr, size));
# endif
if (pthread_attr_getguardsize(&attr, &guard) == 0) {
STACK_GROW_DIR_DETECTION;
STACK_DIR_UPPER((void)0, *addr = (char *)*addr + guard);
*size -= guard;
}
# else
CHECK_ERR(pthread_attr_init(&attr));
CHECK_ERR(pthread_attr_get_np(pthread_self(), &attr));
CHECK_ERR(pthread_attr_getstackaddr(&attr, addr));
CHECK_ERR(pthread_attr_getstacksize(&attr, size));
# endif
CHECK_ERR(pthread_attr_getguardsize(&attr, &guard));
# ifndef HAVE_PTHREAD_GETATTR_NP
pthread_attr_destroy(&attr);
# endif
size -= guard;
#elif defined HAVE_PTHREAD_GET_STACKADDR_NP && defined HAVE_PTHREAD_GET_STACKSIZE_NP
pthread_t th = pthread_self();
*addr = pthread_get_stackaddr_np(th);
*size = pthread_get_stacksize_np(th);
#elif defined HAVE_THR_STKSEGMENT || defined HAVE_PTHREAD_STACKSEG_NP
stack_t stk;
# if defined HAVE_THR_STKSEGMENT
CHECK_ERR(thr_stksegment(&stk));
# else
CHECK_ERR(pthread_stackseg_np(pthread_self(), &stk));
# endif
*addr = stk.ss_sp;
*size = stk.ss_size;
#endif
return 0;
#undef CHECK_ERR
}
void *nativeStackBase() {
#if defined(__UCLIBC__) || defined(__EMSCRIPTEN__)
return NULL;
#else
pthread_attr_t attr;
void *addr;
size_t size;
pthread_getattr_np(pthread_self(), &attr);
pthread_attr_getstack(&attr, &addr, &size);
return addr+size;
#endif
}
static inline void* otherThreadStackPointer(const PlatformThreadRegisters& regs)
{
#if OS(DARWIN)
#if __DARWIN_UNIX03
#if CPU(X86)
return reinterpret_cast<void*>(regs.__esp);
#elif CPU(X86_64)
return reinterpret_cast<void*>(regs.__rsp);
#elif CPU(PPC) || CPU(PPC64)
return reinterpret_cast<void*>(regs.__r1);
#elif CPU(ARM)
return reinterpret_cast<void*>(regs.__sp);
#else
#error Unknown Architecture
#endif
#else // !__DARWIN_UNIX03
#if CPU(X86)
return reinterpret_cast<void*>(regs.esp);
#elif CPU(X86_64)
return reinterpret_cast<void*>(regs.rsp);
#elif CPU(PPC) || CPU(PPC64)
return reinterpret_cast<void*>(regs.r1);
#else
#error Unknown Architecture
#endif
#endif // __DARWIN_UNIX03
// end OS(DARWIN)
#elif CPU(X86) && OS(WINDOWS)
return reinterpret_cast<void*>((uintptr_t) regs.Esp);
#elif CPU(X86_64) && OS(WINDOWS)
return reinterpret_cast<void*>((uintptr_t) regs.Rsp);
#elif USE(PTHREADS)
void* stackBase = 0;
size_t stackSize = 0;
int rc = pthread_attr_getstack(®s, &stackBase, &stackSize);
(void)rc; // FIXME: Deal with error code somehow? Seems fatal.
ASSERT(stackBase);
return static_cast<char*>(stackBase) + stackSize;
#else
#error Need a way to get the stack pointer for another thread on this platform
#endif
}
void
mono_threads_core_get_stack_bounds (guint8 **staddr, size_t *stsize)
{
pthread_attr_t attr;
guint8 *current = (guint8*)&attr;
*staddr = NULL;
*stsize = (size_t)-1;
pthread_getattr_np (pthread_self (), &attr);
pthread_attr_getstack (&attr, (void**)staddr, stsize);
pthread_attr_destroy (&attr);
if (*staddr && ((current <= *staddr) || (current > *staddr + *stsize)))
slow_get_thread_bounds (current, staddr, stsize);
}
int main()
{
pthread_attr_t attr;
int rc;
/* Initialize attr */
rc = pthread_attr_init(&attr);
if( rc != 0) {
perror(ERROR_PREFIX "pthread_attr_init");
exit(PTS_UNRESOLVED);
}
/* Get the default stack_addr and stack_size value */
rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
if( rc != 0) {
perror(ERROR_PREFIX "pthread_attr_getstack");
exit(PTS_UNRESOLVED);
}
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
stack_size = STACKSIZE;
if (posix_memalign (&stack_addr, sysconf(_SC_PAGE_SIZE),
stack_size) != 0)
{
perror (ERROR_PREFIX "out of memory while "
"allocating the stack memory");
exit(PTS_UNRESOLVED);
}
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
if (rc != EINVAL ) {
perror(ERROR_PREFIX "Got the wrong return value");
exit(PTS_FAIL);
}
rc = pthread_attr_destroy(&attr);
if(rc != 0)
{
perror(ERROR_PREFIX "pthread_attr_destroy");
exit(PTS_UNRESOLVED);
}
printf("Test PASSED\n");
return PTS_PASS;
}
static int get_stack_attr(void *low, void *high)
{
/* GNU Pthread specific */
pthread_attr_t attr;
uintptr_t stackaddr;
size_t stacksize;
if (pthread_getattr_np(pthread_self(), &attr)) {
return 1;
}
if (pthread_attr_getstack(&attr, (void *)&stackaddr, &stacksize)) {
return 1;
}
*(uintptr_t *)low = stackaddr;
*(uintptr_t *)high = stackaddr + stacksize;
return 0;
}
void *
GetNativeStackBaseImpl()
{
pthread_t thread = pthread_self();
# if defined(XP_MACOSX) || defined(DARWIN)
return pthread_get_stackaddr_np(thread);
# else
pthread_attr_t sattr;
pthread_attr_init(&sattr);
# if defined(__OpenBSD__)
stack_t ss;
# elif defined(PTHREAD_NP_H) || defined(_PTHREAD_NP_H_) || defined(NETBSD)
/* e.g. on FreeBSD 4.8 or newer, [email protected] */
pthread_attr_get_np(thread, &sattr);
# else
/*
* FIXME: this function is non-portable;
* other POSIX systems may have different np alternatives
*/
pthread_getattr_np(thread, &sattr);
# endif
void *stackBase = 0;
size_t stackSize = 0;
# ifdef DEBUG
int rc =
# endif
# if defined(__OpenBSD__)
pthread_stackseg_np(pthread_self(), &ss);
stackBase = (void*)((size_t) ss.ss_sp - ss.ss_size);
stackSize = ss.ss_size;
# else
pthread_attr_getstack(&sattr, &stackBase, &stackSize);
# endif
JS_ASSERT(!rc);
JS_ASSERT(stackBase);
pthread_attr_destroy(&sattr);
# if JS_STACK_GROWTH_DIRECTION > 0
return stackBase;
# else
return static_cast<char*>(stackBase) + stackSize;
# endif
# endif
}
/* naming : pthread_create = start */
int
mas_ticker_start( const mas_options_t * popts )
{
CTRL_PREPARE;
/* EVAL_PREPARE; */
int r = 0;
MFP( "\x1b]2;starting ticker; mode:%d\x7", ctrl.ticker_mode );
if ( !ctrl.threads.n.ticker.thread )
{
{
( void ) /* r = */ pthread_attr_getstack( &ctrl.thglob.ticker_attr, &ticker_stackaddr, &ticker_stacksize );
tMSG( "creating ticker thread stack:%lu @ %p", ( unsigned long ) ticker_stacksize, ticker_stackaddr );
HMSG( "+ TICKER mode %d", ctrl.ticker_mode );
}
/* if ( !tmp ) */
/* tmp = mas_malloc( 4321 ); */
MAS_LOG( "starting ticker th." );
/* r = mas_xpthread_create( &ctrl.threads.n.ticker.thread, mas_ticker_th, MAS_THREAD_TICKER, NULL ); */
r = pthread_create( &ctrl.threads.n.ticker.thread, &ctrl.thglob.ticker_attr, mas_ticker_th, NULL );
#ifdef SCHED_IDLE
{
int policy, rs;
struct sched_param sched;
rs = pthread_getschedparam( ctrl.threads.n.ticker.thread, &policy, &sched );
/* SCHED_IDLE ... SCHED_RR */
rs = pthread_setschedparam( ctrl.threads.n.ticker.thread, SCHED_IDLE, &sched );
/* rs = pthread_getschedparam( ctrl.threads.n.ticker.thread, &policy, &sched ); */
MAS_LOG( "(%d) created(?) ticker thread [%lx] %d - %d (%d)", r, ctrl.threads.n.ticker.thread, policy, sched.sched_priority, rs );
tMSG( "(%d) created(?) ticker thread [%lx] %d - %d (%d)", r, ctrl.threads.n.ticker.thread, policy, sched.sched_priority, rs );
}
#else
MAS_LOG( "(%d) created(?) ticker thread [%lx]", r, ctrl.threads.n.ticker.thread );
#endif
}
else
{
MAS_LOG( "running w/o ticker th." );
}
return r;
}
int main(void)
{
pthread_t tid;
pthread_attr_t attr;
void *stack_addr;
int stack_size;
int ret;
while (1)
{
stack_addr = malloc(PAGE_SIZE * 8);
// 1. 指针不能位运算，因此转换成unsigned long
// 2. & 0x7 检查地址是否对齐: 32位系统，2^12 >> 0x1000
if ((unsigned long)stack_addr & 0x7 != 0)
{
printf("地址不是对齐的\n");
free(stack_addr);
}
else
break;
}
printf("stack_addr: %p\n", stack_addr);
pthread_attr_init(&attr);
pthread_attr_setstack(&attr, stack_addr, PAGE_SIZE * 8);
pthread_attr_getstack(&attr, &stack_addr, &stack_size);
printf("stack_addr: %p, stack_size: %#x\n", stack_addr, stack_size);
pthread_create(&tid, &attr, thr_rtn, NULL);
ret = pthread_join(tid, NULL);
if (ret != 0)
{
printf("thread has detached\n");
perror("pthread_join");
}
free(stack_addr);
pthread_attr_destroy(&attr);
return 0;
}
void Thread::_poison_stack()
{
pthread_attr_t attr;
size_t stack_size, guard_size;
void *stackp;
uint8_t *end, *start, *curr;
uint32_t *p;
if (pthread_getattr_np(_ctx, &attr) != 0 ||
pthread_attr_getstack(&attr, &stackp, &stack_size) != 0 ||
pthread_attr_getguardsize(&attr, &guard_size) != 0) {
return;
}
/* The stack either grows upward or downard. The guard part always
* protects the end */
end = (uint8_t *) stackp;
start = end + stack_size;
curr = (uint8_t *) alloca(sizeof(uint32_t));
/* if curr is closer to @end, the stack actually grows from low to high
* virtual address: this is because this function should be executing very
* early in the thread's life and close to the thread creation, assuming
* the actual stack size is greater than the guard size and the stack
* until now is resonably small */
if (abs(curr - start) > abs(curr - end)) {
std::swap(end, start);
end -= guard_size;
for (p = (uint32_t *) end; p > (uint32_t *) curr; p--) {
*p = STACK_POISON;
}
} else {
end += guard_size;
for (p = (uint32_t *) end; p < (uint32_t *) curr; p++) {
*p = STACK_POISON;
}
}
_stack_debug.start = (uint32_t *) start;
_stack_debug.end = (uint32_t *) end;
}
static void *
tf (void *a)
{
int result = 0;
puts ("child start");
pthread_attr_t attr;
if (pthread_getattr_np (pthread_self (), &attr) != 0)
{
puts ("getattr_np failed");
exit (1);
}
size_t test_size;
void *test_stack;
if (pthread_attr_getstack (&attr, &test_stack, &test_size) != 0)
{
puts ("attr_getstack failed");
exit (1);
}
if (test_size != size)
{
printf ("child: reported size differs: is %zu, expected %zu\n",
test_size, size);
result = 1;
}
if (test_stack != stack)
{
printf ("child: reported stack address differs: is %p, expected %p\n",
test_stack, stack);
result = 1;
}
puts ("child OK");
return result ? (void *) 1l : NULL;
}
static void
display_stack_related_attributes(pthread_attr_t *attr, char *prefix)
{
int s;
size_t stack_size, guard_size;
void *stack_addr;
s = pthread_attr_getguardsize(attr, &guard_size);
if (s != 0)
handle_error_en(s, "pthread_attr_getguardsize");
printf("%sGuard size = %lu bytes\n", prefix, guard_size);
s = pthread_attr_getstack(attr, &stack_addr, &stack_size);
if (s != 0)
handle_error_en(s, "pthread_attr_getstack");
printf("%sStack address = %p", prefix, stack_addr);
if (stack_size > 0)
printf(" (EOS = %p)", (char *) stack_addr + stack_size);
printf("\n");
printf("%sStack size = 0x%lx (%lu) bytes\n",
prefix, stack_size, stack_size);
}
//static
void XLinuxTask_preemptive::GetStack(void** outStackAddr, size_t* outStackSize)
{
pthread_attr_t attr;
pthread_attr_init(&attr);
int res = pthread_getattr_np(pthread_self(), &attr);
xbox_assert(res==0);
void* stackAddr = NULL;
size_t stackSize = 0;
res = pthread_attr_getstack(&attr, &stackAddr, &stackSize);
xbox_assert(res == 0);
if (outStackAddr)
*outStackAddr = stackAddr;
if (outStackSize)
*outStackSize = stackSize;
pthread_attr_destroy(&attr);
}
void *AsyncFuncImpl::ThreadFunc(void *obj) {
pthread_attr_t *attr;
size_t stacksize, guardsize;
void *stackaddr;
attr = ((AsyncFuncImpl*)obj)->getThreadAttr();
pthread_attr_getstack(attr, &stackaddr, &stacksize);
// Get the guard page's size, because the stack address returned
// above starts at the guard page, so the thread's stack limit is
// stackaddr + guardsize.
if (pthread_attr_getguardsize(attr, &guardsize) != 0)
guardsize = 0;
ASSERT(stackaddr != NULL);
ASSERT(stacksize >= PTHREAD_STACK_MIN);
Util::s_stackLimit = uintptr_t(stackaddr) + guardsize;
Util::s_stackSize = stacksize;
((AsyncFuncImpl*)obj)->threadFuncImpl();
return NULL;
}
static int
get_self_pthread_attr (const char *id, void **stackaddr, size_t *stacksize)
{
pthread_attr_t attr;
int ret;
pthread_t me = pthread_self ();
if ((ret = pthread_getattr_np (me, &attr)) < 0)
{
printf ("%s: pthread_getattr_np failed: %s\n", id, strerror (ret));
return 1;
}
if ((ret = pthread_attr_getstack (&attr, stackaddr, stacksize)) < 0)
{
printf ("%s: pthread_attr_getstack returned error: %s\n", id,
strerror (ret));
return 1;
}
return 0;
}
StackLocator::StackLocator() {
pthread_t self = pthread_self();
pthread_attr_t selfAttrs;
invariant(pthread_attr_init(&selfAttrs) == 0);
invariant(pthread_getattr_np(self, &selfAttrs) == 0);
ON_BLOCK_EXIT(pthread_attr_destroy, &selfAttrs);
void* base = nullptr;
size_t size = 0;
auto result = pthread_attr_getstack(&selfAttrs, &base, &size);
invariant(result == 0);
invariant(base != nullptr);
invariant(size != 0);
// TODO: Assumes a downward growing stack. Note here that
// getstack returns the stack *base*, being the bottom of the
// stack, so we need to add size to it.
_end = base;
_begin = static_cast<char*>(_end) + size;
}
void StackBounds::initialize()
{
void* stackBase = 0;
size_t stackSize = 0;
pthread_t thread = pthread_self();
pthread_attr_t sattr;
pthread_attr_init(&sattr);
#if HAVE(PTHREAD_NP_H) || OS(NETBSD)
// e.g. on FreeBSD 5.4, [email protected]
pthread_attr_get_np(thread, &sattr);
#else
// FIXME: this function is non-portable; other POSIX systems may have different np alternatives
pthread_getattr_np(thread, &sattr);
#endif
int rc = pthread_attr_getstack(&sattr, &stackBase, &stackSize);
(void)rc; // FIXME: Deal with error code somehow? Seems fatal.
ASSERT(stackBase);
pthread_attr_destroy(&sattr);
m_bound = stackBase;
m_origin = static_cast<char*>(stackBase) + stackSize;
}
static int print_thread_attr(pthread_attr_t *attr)
{
if (attr == NULL)
{
return THREAD_ATTR_FAILED;
}
int detach_state = 0;
int ret = 0;
char *stack_addr = NULL;
size_t stack_size = 0;
size_t guard_size = 0;
ret = pthread_attr_getdetachstate(attr, &detach_state);
if (detach_state == PTHREAD_CREATE_JOINABLE)
{
printf("Thread detach state: JOINABLE\n");
}
else if (detach_state == PTHREAD_CREATE_DETACHED)
{
printf("Thread detach state: DETACHED\n");
}
ret = pthread_attr_getstack(attr, (void**)&stack_addr, &stack_size);
printf("stack_addr:%p, stack_size:%zd\n", stack_addr, stack_size);
ret = pthread_attr_getstacksize(attr, &stack_size);
printf("stack size:%#x\n", stack_size);
ret = pthread_attr_getguardsize(attr, &guard_size);
printf("guard size:%#x\n", guard_size);
ret = pthread_getconcurrency();
printf("concurrency is %d\n", ret);
return THREAD_ATTR_OK;
}
void *thread_func()
{
pthread_attr_t attr;
void *saddr;
size_t ssize;
int rc;
if ((rc = pthread_getattr_np(pthread_self(), &attr)) != 0) {
printf(ERROR_PREFIX "pthread_getattr_np: %s", strerror(rc));
pthread_exit((void *)PTS_UNRESOLVED);
}
if ((rc = pthread_attr_getstack(&attr, &saddr, &ssize)) != 0) {
printf(ERROR_PREFIX "pthread_attr_getstack: %s", strerror(rc));
pthread_exit((void *)PTS_UNRESOLVED);
}
if (ssize != stack_size || saddr != stack_addr) {
printf(ERROR_PREFIX "got the wrong stacksize or stackaddr");
pthread_exit((void *)PTS_FAIL);
}
pthread_exit(NULL);
return NULL;
}
/**
* Determines the stack address of the current thread
*/
static void* getStackAddress(void) {
void* result = NULL;
size_t stackSize = 0;
pthread_t self = pthread_self();
#if defined(DARWIN)
result = pthread_get_stackaddr_np(self);
stackSize = pthread_get_stacksize_np(self);
// pthread_get_stackaddr_np returns the beginning (highest address) of the stack
// while we want the address of the memory area allocated for the stack (lowest address).
result -= stackSize;
#else
size_t guardSize = 0;
pthread_attr_t attr;
pthread_getattr_np(self, &attr);
pthread_attr_getstack(&attr, &result, &stackSize);
pthread_attr_getguardsize(&attr, &guardSize);
// On Linux pthread_attr_getstack() returns the address of the memory area allocated for the stack
// including the guard page (except for the main thread which returns the correct stack address and
// pthread_attr_getguardsize() returns 0 even if there is a guard page).
result += guardSize;
#endif
return result;
}
inline int find_stack_addr_size(void** paddr, size_t* psize)
{
#if defined (HAIKU)
int status;
thread_info info;
thread_id this_thread = find_thread(NULL);
status = get_thread_info(this_thread,&info);
*paddr = info.stack_base;
*psize = (size_t)info.stack_base - (size_t)info.stack_end;
return 0;
#else
int err;
pthread_attr_t pthread_attr;
void* stack_addr;
size_t stack_size;
pthread_t thread = pthread_self();
if (!paddr) return EINVAL;
err = pthread_attr_init(&pthread_attr);
if (err != 0) return err;
#if defined(FREEBSD)
err = pthread_attr_get_np(thread, &pthread_attr);
#else
err = pthread_getattr_np(thread, &pthread_attr);
#endif
if (err != 0) return err;
err = pthread_attr_getstack(&pthread_attr, &stack_addr, &stack_size);
if (err != 0) return err;
pthread_attr_destroy(&pthread_attr);
*paddr = (void*)((size_t)stack_addr + stack_size);
*psize = stack_size;
return 0;
#endif
}
static void display_stack_attr (pthread_attr_t *attr, char *prefix) {
int s;
size_t stack_size, guard_size, stack_size_check;
void *stack_addr;
s = pthread_attr_getguardsize(attr, &guard_size);
if (s != 0)
handle_error_en(s, "pthread_attr_getguardsize");
printf("%sGuard size = %d bytes\n", prefix, guard_size);
s = pthread_attr_getstack(attr, &stack_addr, &stack_size);
if (s != 0)
handle_error_en(s, "pthread_attr_getstack");
printf("%sStack address = %p", prefix, stack_addr);
if (stack_size > 0)
printf(" (EOS = %p)", (char *) stack_addr + stack_size);
printf("\n");
s = pthread_attr_getstacksize (attr, &stack_size_check);
if (s != 0)
handle_error_en(s, "pthread_attr_getstacksize");
assert (stack_size_check == stack_size);
printf("%sStack size = 0x%x (%d) bytes\n",
prefix, stack_size, stack_size);
}
void
attach_os_thread(init_thread_data *scribble)
{
os_thread_t os = pthread_self();
odxprint(misc, "attach_os_thread: attaching to %p", os);
struct thread *th = create_thread_struct(NIL);
block_deferrable_signals(&scribble->oldset);
th->no_tls_value_marker = NO_TLS_VALUE_MARKER_WIDETAG;
/* We don't actually want a pthread_attr here, but rather than add
* `if's to the post-mostem, let's just keep that code happy by
* keeping it initialized: */
pthread_attr_init(th->os_attr);
#ifndef LISP_FEATURE_WIN32
/* On windows, arch_os_thread_init will take care of finding the
* stack. */
void *stack_addr;
size_t stack_size;
#ifdef LISP_FEATURE_OPENBSD
stack_t stack;
pthread_stackseg_np(os, &stack);
stack_size = stack.ss_size;
stack_addr = (void*)((size_t)stack.ss_sp - stack_size);
#elif defined LISP_FEATURE_SUNOS
stack_t stack;
thr_stksegment(&stack);
stack_size = stack.ss_size;
stack_addr = (void*)((size_t)stack.ss_sp - stack_size);
#elif defined(LISP_FEATURE_DARWIN)
stack_addr = pthread_get_stackaddr_np(os);
stack_size = pthread_get_stacksize_np(os);
#else
pthread_attr_t attr;
#ifdef LISP_FEATURE_FREEBSD
pthread_attr_get_np(os, &attr);
#else
int pthread_getattr_np(pthread_t, pthread_attr_t *);
pthread_getattr_np(os, &attr);
#endif
pthread_attr_getstack(&attr, &stack_addr, &stack_size);
#endif
th->control_stack_start = stack_addr;
th->control_stack_end = (void *) (((uintptr_t) stack_addr) + stack_size);
#endif
init_new_thread(th, scribble, 0);
/* We will be calling into Lisp soon, and the functions being called
* recklessly ignore the comment in target-thread which says that we
* must be careful to not cause GC while initializing a new thread.
* Since we first need to create a fresh thread object, it's really
* tempting to just perform such unsafe allocation though. So let's
* at least try to suppress GC before consing, and hope that it
* works: */
bind_variable(GC_INHIBIT, T, th);
uword_t stacksize
= (uword_t) th->control_stack_end - (uword_t) th->control_stack_start;
odxprint(misc, "attach_os_thread: attached %p as %p (0x%lx bytes stack)",
os, th, (long) stacksize);
}
int main()
{
pthread_t new_th;
pthread_attr_t attr;
size_t ssize;
void *saddr;
int rc;
/* Initialize attr */
rc = pthread_attr_init(&attr);
if (rc != 0) {
printf(ERROR_PREFIX "pthread_attr_init: %s", strerror(rc));
exit(PTS_UNRESOLVED);
}
/* Get the default stack_addr and stack_size value */
rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
if (rc != 0) {
printf(ERROR_PREFIX "pthread_attr_getstack", strerror(rc));
exit(PTS_UNRESOLVED);
}
/*
* Use smallest usable stack size for us to be able to call
* printf(3) / pthread_exit(3) without segfaulting.
*
* If for whatever reason PTHREAD_STACK_MIN is set to 0 (which it can
* be according to POSIX), posix_memalign will fail with EINVAL.
*/
stack_size = PTHREAD_STACK_MIN * 4;
if ((rc = posix_memalign(&stack_addr, sysconf(_SC_PAGE_SIZE),
stack_size)) != 0) {
printf(ERROR_PREFIX "posix_memalign: %s\n", strerror(rc));
exit(PTS_UNRESOLVED);
}
if ((rc = pthread_attr_setstack(&attr, stack_addr, stack_size)) != 0) {
printf(ERROR_PREFIX "pthread_attr_setstack: %s\n",
strerror(rc));
exit(PTS_UNRESOLVED);
}
if ((rc = pthread_attr_getstack(&attr, &saddr, &ssize)) != 0) {
printf(ERROR_PREFIX "pthread_attr_getstack: %s\n",
strerror(rc));
exit(PTS_UNRESOLVED);
}
if ((rc = pthread_create(&new_th, &attr, thread_func, NULL)) != 0) {
printf(ERROR_PREFIX "pthread_create: %s\n", strerror(rc));
exit(PTS_FAIL);
}
if ((rc = pthread_join(new_th, NULL)) != 0) {
printf(ERROR_PREFIX "pthread_join: %s\n", strerror(rc));
exit(PTS_UNRESOLVED);
}
if ((rc = pthread_attr_destroy(&attr)) != 0) {
printf(ERROR_PREFIX "pthread_attr_destroy: %s\n", strerror(rc));
exit(PTS_UNRESOLVED);
}
printf("Test PASSED\n");
return PTS_PASS;
}
int main()
{
pthread_t new_th;
pthread_attr_t attr;
size_t ssize;
void *saddr;
int rc;
/* Initialize attr */
rc = pthread_attr_init(&attr);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_init");
exit(PTS_UNRESOLVED);
}
/* Get the default stack_addr and stack_size value */
rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_getstack");
exit(PTS_UNRESOLVED);
}
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size); */
stack_size = PTHREAD_STACK_MIN;
if (posix_memalign (&stack_addr, sysconf(_SC_PAGE_SIZE),
stack_size) != 0)
{
perror (ERROR_PREFIX "out of memory while "
"allocating the stack memory");
exit(PTS_UNRESOLVED);
}
/* printf("stack_addr = %p, stack_size = %u\n", stack_addr, stack_size);*/
rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_setstack");
exit(PTS_UNRESOLVED);
}
rc = pthread_attr_getstack(&attr, &saddr, &ssize);
if (rc != 0) {
perror(ERROR_PREFIX "pthread_attr_getstack");
exit(PTS_UNRESOLVED);
}
/* printf("saddr = %p, ssize = %u\n", saddr, ssize); */
rc = pthread_create(&new_th, &attr, thread_func, NULL);
if (rc !=0) {
perror(ERROR_PREFIX "failed to create a thread");
exit(PTS_FAIL);
}
rc = pthread_join(new_th, NULL);
if (rc != 0)
{
perror(ERROR_PREFIX "pthread_join");
exit(PTS_UNRESOLVED);
}
rc = pthread_attr_destroy(&attr);
if (rc != 0)
{
perror(ERROR_PREFIX "pthread_attr_destroy");
exit(PTS_UNRESOLVED);
}
printf("Test PASSED\n");
return PTS_PASS;
}