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hw: make kernel less noisy in release mode

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In most cases an error report is not necessary in the kernel as the problem
does not affect the kernel itself but the according user-land context. Thus
we can also do a warning that is not printed in release mode and hence safe
execution time.

ref #1096
This commit is contained in:
Martin Stein 2014-03-12 16:23:01 +01:00 committed by Norman Feske
parent ff28a89000
commit 9affbf33ec
4 changed files with 52 additions and 49 deletions
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4
base-hw/src/core/kernel/ipc_node.h
View File

@ -72,8 +72,8 @@ class Kernel::Ipc_node
{
/* FIXME: invalid requests should be discarded */
if (r->size > _inbuf.size) {
PERR("oversized request");
while (1) { }
PWRN("oversized request");
r->size = _inbuf.size;
}
/* fetch message */
Genode::memcpy(_inbuf.base, r->base, r->size);

8
base-hw/src/core/kernel/irq.h
View File

@ -118,7 +118,11 @@ class Kernel::Irq
*
* By now, there is no use case to destruct user interrupts
*/
~Irq() { PERR("method not implemented"); }
~Irq()
{
PERR("destruction of interrupts not implemented");
while (1) { }
}
/************************
@ -153,7 +157,7 @@ class Kernel::Irq
{
Irq * const irq = _pool()->object(irq_id);
if (!irq) {
PERR("unknown interrupt occurred");
PWRN("unknown interrupt occurred");
return;
}
irq->_occurred();

5
base-hw/src/core/kernel/kernel.cc
View File

@ -247,9 +247,8 @@ extern "C" void init_kernel_multiprocessor()
STACK_ALIGNM = 1 << Genode::CORE_STACK_ALIGNM_LOG2,
STACK_SIZE = DEFAULT_STACK_SIZE,
};
if (STACK_SIZE > STACK_ALIGNM - sizeof(Core_thread_id)) {
PERR("stack size does not fit stack alignment of core");
}
static_assert(STACK_SIZE <= STACK_ALIGNM - sizeof(Core_thread_id),
"stack size does not fit stack alignment of core");
static char s[STACK_SIZE] __attribute__((aligned(STACK_ALIGNM)));
/* provide thread ident at the aligned base of the stack */

84
base-hw/src/core/kernel/thread.cc
View File

@ -78,7 +78,7 @@ void Thread::_received_ipc_request(size_t const s)
user_arg_0(0);
return;
default:
PERR("wrong thread state to receive IPC");
PWRN("wrong thread state to receive IPC");
_stop();
return;
}
@ -92,7 +92,7 @@ void Thread::_await_ipc()
_unschedule(AWAITS_IPC);
return;
default:
PERR("wrong thread state to await IPC");
PWRN("wrong thread state to await IPC");
_stop();
return;
}
@ -107,7 +107,7 @@ void Thread::_await_ipc_succeeded(size_t const s)
_schedule();
return;
default:
PERR("wrong thread state to receive IPC");
PWRN("wrong thread state to receive IPC");
_stop();
return;
}
@ -122,7 +122,7 @@ void Thread::_await_ipc_failed()
_schedule();
return;
default:
PERR("wrong thread state to cancel IPC");
PWRN("wrong thread state to cancel IPC");
_stop();
return;
}
@ -149,7 +149,7 @@ int Thread::_resume()
case AWAITS_START:
case STOPPED:;
}
PERR("failed to resume thread");
PWRN("failed to resume thread");
return -1;
}
@ -245,7 +245,7 @@ void Thread::exception(unsigned const processor_id)
case RESET:
return;
default:
PERR("unknown exception");
PWRN("unknown exception");
_stop();
}
}
@ -254,7 +254,7 @@ void Thread::exception(unsigned const processor_id)
void Thread::_receive_yielded_cpu()
{
if (_state == AWAITS_RESUME) { _schedule(); }
else { PERR("failed to receive yielded CPU"); }
else { PWRN("failed to receive yielded CPU"); }
}
@ -276,7 +276,7 @@ void Thread::_call_new_pd()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to create protection domain");
PWRN("not entitled to create protection domain");
user_arg_0(0);
return;
}
@ -293,7 +293,7 @@ void Thread::_call_bin_pd()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to destruct protection domain");
PWRN("not entitled to destruct protection domain");
user_arg_0(-1);
return;
}
@ -301,7 +301,7 @@ void Thread::_call_bin_pd()
unsigned id = user_arg_1();
Pd * const pd = Pd::pool()->object(id);
if (!pd) {
PERR("unknown protection domain");
PWRN("unknown protection domain");
user_arg_0(-1);
return;
}
@ -320,7 +320,7 @@ void Thread::_call_new_thread()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to create thread");
PWRN("not entitled to create thread");
user_arg_0(0);
return;
}
@ -352,7 +352,7 @@ void Thread::_call_start_thread()
{
/* check permissions */
if (!_core()) {
PERR("permission denied");
PWRN("permission denied");
user_arg_0(0);
return;
}
@ -360,7 +360,7 @@ void Thread::_call_start_thread()
unsigned const thread_id = user_arg_1();
Thread * const thread = Thread::pool()->object(thread_id);
if (!thread) {
PERR("unknown thread");
PWRN("unknown thread");
user_arg_0(0);
return;
}
@ -368,7 +368,7 @@ void Thread::_call_start_thread()
unsigned const processor_id = user_arg_2();
Processor * const processor = processor_pool()->processor(processor_id);
if (!processor) {
PERR("unknown processor");
PWRN("unknown processor");
user_arg_0(0);
return;
}
@ -406,13 +406,13 @@ void Thread::_call_resume_thread()
/* lookup thread */
Thread * const t = Thread::pool()->object(user_arg_1());
if (!t) {
PERR("unknown thread");
PWRN("unknown thread");
user_arg_0(-1);
return;
}
/* check permissions */
if (!_core() && pd_id() != t->pd_id()) {
PERR("not entitled to resume thread");
PWRN("not entitled to resume thread");
user_arg_0(-1);
return;
}
@ -437,7 +437,7 @@ Thread_event::Thread_event(Thread * const t)
void Thread_event::submit()
{
if (_signal_context && !_signal_context->submit(1)) { return; }
PERR("failed to communicate thread event");
PWRN("failed to communicate thread event");
}
@ -462,7 +462,7 @@ void Thread::_call_send_request_msg()
{
Thread * const dst = Thread::pool()->object(user_arg_1());
if (!dst) {
PERR("unknown recipient");
PWRN("unknown recipient");
_await_ipc();
return;
}
@ -493,7 +493,7 @@ void Thread::_call_route_thread_event()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to route thread event");
PWRN("not entitled to route thread event");
user_arg_0(-1);
return;
}
@ -501,7 +501,7 @@ void Thread::_call_route_thread_event()
unsigned const thread_id = user_arg_1();
Thread * const t = Thread::pool()->object(thread_id);
if (!t) {
PERR("unknown thread");
PWRN("unknown thread");
user_arg_0(-1);
return;
}
@ -523,7 +523,7 @@ int Thread::_route_event(unsigned const event_id,
if (signal_context_id) {
c = Signal_context::pool()->object(signal_context_id);
if (!c) {
PERR("unknown signal context");
PWRN("unknown signal context");
return -1;
}
} else { c = 0; }
@ -554,7 +554,7 @@ void Thread::_call_access_thread_regs()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to access thread regs");
PWRN("not entitled to access thread regs");
user_arg_0(-1);
return;
}
@ -562,7 +562,7 @@ void Thread::_call_access_thread_regs()
unsigned const thread_id = user_arg_1();
Thread * const t = Thread::pool()->object(thread_id);
if (!t) {
PERR("unknown thread");
PWRN("unknown thread");
user_arg_0(-1);
return;
}
@ -691,7 +691,7 @@ void Thread::_call_new_signal_receiver()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to create signal receiver");
PWRN("not entitled to create signal receiver");
user_arg_0(0);
return;
}
@ -706,7 +706,7 @@ void Thread::_call_new_signal_context()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to create signal context");
PWRN("not entitled to create signal context");
user_arg_0(0);
return;
}
@ -714,7 +714,7 @@ void Thread::_call_new_signal_context()
unsigned const id = user_arg_2();
Signal_receiver * const r = Signal_receiver::pool()->object(id);
if (!r) {
PERR("unknown signal receiver");
PWRN("unknown signal receiver");
user_arg_0(0);
return;
}
@ -733,19 +733,19 @@ void Thread::_call_await_signal()
if (context_id) {
Signal_context * const c = Signal_context::pool()->object(context_id);
if (c) { c->ack(); }
else { PERR("failed to acknowledge signal context"); }
else { PWRN("failed to acknowledge signal context"); }
}
/* lookup receiver */
unsigned const receiver_id = user_arg_1();
Signal_receiver * const r = Signal_receiver::pool()->object(receiver_id);
if (!r) {
PERR("unknown signal receiver");
PWRN("unknown signal receiver");
user_arg_0(-1);
return;
}
/* register handler at the receiver */
if (r->add_handler(this)) {
PERR("failed to register handler at signal receiver");
PWRN("failed to register handler at signal receiver");
user_arg_0(-1);
return;
}
@ -759,7 +759,7 @@ void Thread::_call_signal_pending()
unsigned const id = user_arg_1();
Signal_receiver * const r = Signal_receiver::pool()->object(id);
if (!r) {
PERR("unknown signal receiver");
PWRN("unknown signal receiver");
user_arg_0(0);
return;
}
@ -774,13 +774,13 @@ void Thread::_call_submit_signal()
unsigned const id = user_arg_1();
Signal_context * const c = Signal_context::pool()->object(id);
if(!c) {
PERR("unknown signal context");
PWRN("unknown signal context");
user_arg_0(-1);
return;
}
/* trigger signal context */
if (c->submit(user_arg_2())) {
PERR("failed to submit signal context");
PWRN("failed to submit signal context");
user_arg_0(-1);
return;
}
@ -794,7 +794,7 @@ void Thread::_call_ack_signal()
unsigned const id = user_arg_1();
Signal_context * const c = Signal_context::pool()->object(id);
if (!c) {
PERR("unknown signal context");
PWRN("unknown signal context");
return;
}
/* acknowledge */
@ -808,13 +808,13 @@ void Thread::_call_kill_signal_context()
unsigned const id = user_arg_1();
Signal_context * const c = Signal_context::pool()->object(id);
if (!c) {
PERR("unknown signal context");
PWRN("unknown signal context");
user_arg_0(-1);
return;
}
/* kill signal context */
if (c->kill(this)) {
PERR("failed to kill signal context");
PWRN("failed to kill signal context");
user_arg_0(-1);
return;
}
@ -825,7 +825,7 @@ void Thread::_call_bin_signal_context()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to kill signal context");
PWRN("not entitled to kill signal context");
user_arg_0(-1);
return;
}
@ -833,7 +833,7 @@ void Thread::_call_bin_signal_context()
unsigned const id = user_arg_1();
Signal_context * const c = Signal_context::pool()->object(id);
if (!c) {
PERR("unknown signal context");
PWRN("unknown signal context");
user_arg_0(0);
return;
}
@ -847,7 +847,7 @@ void Thread::_call_bin_signal_receiver()
{
/* check permissions */
if (!_core()) {
PERR("not entitled to kill signal receiver");
PWRN("not entitled to kill signal receiver");
user_arg_0(-1);
return;
}
@ -855,7 +855,7 @@ void Thread::_call_bin_signal_receiver()
unsigned const id = user_arg_1();
Signal_receiver * const r = Signal_receiver::pool()->object(id);
if (!r) {
PERR("unknown signal receiver");
PWRN("unknown signal receiver");
user_arg_0(0);
return;
}
@ -920,7 +920,7 @@ int Thread::_read_reg(addr_t const id, addr_t & value) const
value = this->*reg;
return 0;
}
PERR("unknown thread register");
PWRN("unknown thread register");
return -1;
}
@ -932,7 +932,7 @@ int Thread::_write_reg(addr_t const id, addr_t const value)
this->*reg = value;
return 0;
}
PERR("unknown thread register");
PWRN("unknown thread register");
return -1;
}
@ -969,7 +969,7 @@ void Thread::_call(unsigned const processor_id)
case Call_id::ACCESS_THREAD_REGS: _call_access_thread_regs(); return;
case Call_id::ROUTE_THREAD_EVENT: _call_route_thread_event(); return;
default:
PERR("unknown kernel call");
PWRN("unknown kernel call");
_stop();
}
}