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hw: don't use assert in Kernel::start_thread

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ref #1101
This commit is contained in:
Martin Stein 2014-03-16 18:25:37 +01:00 committed by Norman Feske
parent fba4f54571
commit 9e089e7e75
4 changed files with 22 additions and 17 deletions
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4
base-hw/src/core/kernel/kernel.cc
View File

@ -93,7 +93,7 @@ namespace Kernel
/**
* Static kernel PD that describes core
*/
static Pd * core()
Pd * core()
{
/**
* Core protection-domain
@ -262,7 +262,7 @@ extern "C" void init_kernel_multiprocessor()
_main_thread_utcb->start_info()->init(t.id(), Genode::Native_capability());
t.ip = (addr_t)CORE_MAIN;;
t.sp = (addr_t)s + STACK_SIZE;
t.init(processor_pool()->processor(processor_id), core_id(), &utcb, 1);
t.init(processor_pool()->processor(processor_id), core(), &utcb, 1);
/* kernel initialization finished */
init_platform();

4
base-hw/src/core/kernel/processor_pool.h
View File

@ -25,7 +25,7 @@ namespace Kernel
/**
* Return kernel name of core domain
*/
unsigned core_id();
Pd * core();
/**
* Thread that consumes processor time if no other thread is available
@ -75,7 +75,7 @@ class Kernel::Idle_thread : public Thread
{
ip = (addr_t)&_main;
sp = (addr_t)&_stack[STACK_SIZE];
init(processor, core_id(), 0, 0);
init(processor, core(), 0, 0);
}
};

25
base-hw/src/core/kernel/thread.cc
View File

@ -190,8 +190,7 @@ Thread::Thread(unsigned const priority, char const * const label)
}
void
Thread::init(Processor * const processor, unsigned const pd_id_arg,
void Thread::init(Processor * const processor, Pd * const pd,
Native_utcb * const utcb_phys, bool const start)
{
assert(_state == AWAITS_START)
@ -201,8 +200,7 @@ Thread::init(Processor * const processor, unsigned const pd_id_arg,
_utcb_phys = utcb_phys;
/* join protection domain */
_pd = Pd::pool()->object(pd_id_arg);
assert(_pd);
_pd = pd;
addr_t const tlb = _pd->tlb()->base();
User_context::init_thread(tlb, pd_id());
@ -356,26 +354,33 @@ void Thread::_call_start_thread()
user_arg_0(0);
return;
}
/* lookup targeted thread */
/* lookup thread */
unsigned const thread_id = user_arg_1();
Thread * const thread = Thread::pool()->object(thread_id);
if (!thread) {
PWRN("unknown thread");
PWRN("failed to lookup thread");
user_arg_0(0);
return;
}
/* lookup targeted processor */
/* lookup processor */
unsigned const processor_id = user_arg_2();
Processor * const processor = processor_pool()->processor(processor_id);
if (!processor) {
PWRN("unknown processor");
PWRN("failed to lookup processor");
user_arg_0(0);
return;
}
/* lookup domain */
unsigned const pd_id = user_arg_3();
Pd * const pd = Pd::pool()->object(pd_id);
if (!pd) {
PWRN("failed to lookup domain");
user_arg_0(0);
return;
}
/* start thread */
unsigned const pd_id = user_arg_3();
Native_utcb * const utcb = (Native_utcb *)user_arg_4();
thread->init(processor, pd_id, utcb, 1);
thread->init(processor, pd, utcb, 1);
user_arg_0((Call_ret)thread->_pd->tlb());
}

6
base-hw/src/core/kernel/thread.h
View File

@ -301,12 +301,12 @@ class Kernel::Thread
/**
* Prepare thread to get scheduled the first time
*
* \param processor kernel object of targeted processor
* \param pd_id kernel name of target protection domain
* \param processor targeted processor
* \param pd targeted domain
* \param utcb core local pointer to userland thread-context
* \param start wether to start executing the thread
*/
void init(Processor * const processor, unsigned const pd_id,
void init(Processor * const processor, Pd * const pd,
Native_utcb * const utcb, bool const start);