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nova: construct pager name out of client name

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Ease debugging to find out which client is dying actually.
This commit is contained in:
Alexander Boettcher 2013-02-19 11:14:21 +01:00 committed by Norman Feske
parent c374f294c8
commit 5380c09c6f
3 changed files with 20 additions and 6 deletions
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19
base-nova/src/base/pager/pager.cc
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@ -64,7 +64,11 @@ void Pager_object::_page_fault_handler()
if (ret) { if (ret) {
if (obj->client_recall() != Nova::NOVA_OK) { if (obj->client_recall() != Nova::NOVA_OK) {
PERR("recall failed"); char client_name[Context::NAME_LEN];
myself->name(client_name, sizeof(client_name));
PWRN("unresolvable page fault since recall failed, '%s'",
client_name);
Native_capability pager_obj = obj->Object_pool<Pager_object>::Entry::cap(); Native_capability pager_obj = obj->Object_pool<Pager_object>::Entry::cap();
revoke(pager_obj.dst(), true); revoke(pager_obj.dst(), true);
@ -96,8 +100,11 @@ void Pager_object::_exception_handler(addr_t portal_id)
} }
} }
else { else {
PWRN("unresolvable exception at ip 0x%lx, exception portal 0x%lx", char client_name[Context::NAME_LEN];
fault_ip, portal_id); myself->name(client_name, sizeof(client_name));
PWRN("unresolvable exception at ip 0x%lx, exception portal 0x%lx, "
"'%s'", fault_ip, portal_id, client_name);
Nova::revoke(Obj_crd(portal_id, 0)); Nova::revoke(Obj_crd(portal_id, 0));
obj->_state.dead = true; obj->_state.dead = true;
@ -235,11 +242,15 @@ void Pager_object::cleanup_call()
Pager_object::Pager_object(unsigned long badge) Pager_object::Pager_object(unsigned long badge)
: Thread_base("pager", PF_HANDLER_STACK_SIZE), _badge(badge) : Thread_base("pager:", PF_HANDLER_STACK_SIZE), _badge(badge)
{ {
class Create_exception_pt_failed { }; class Create_exception_pt_failed { };
uint8_t res; uint8_t res;
/* construct pager name out of client name */
strncpy(_context->name + 6, reinterpret_cast<char const *>(badge),
sizeof(_context->name) - 6);
addr_t pd_sel = __core_pd_sel; addr_t pd_sel = __core_pd_sel;
_pt_cleanup = cap_selector_allocator()->alloc(); _pt_cleanup = cap_selector_allocator()->alloc();
_sm_state_notify = cap_selector_allocator()->alloc(); _sm_state_notify = cap_selector_allocator()->alloc();

1
base-nova/src/core/include/platform_thread.h
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@ -36,6 +36,7 @@ namespace Genode {
unsigned _cpu_no; unsigned _cpu_no;
bool _is_main_thread; bool _is_main_thread;
bool _is_vcpu; bool _is_vcpu;
char _name[Thread_base::Context::NAME_LEN];
addr_t _sel_ec() { return _id_base; } addr_t _sel_ec() { return _id_base; }
addr_t _sel_sc() { return _id_base + 1; } addr_t _sel_sc() { return _id_base + 1; }

6
base-nova/src/core/platform_thread.cc
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@ -305,7 +305,7 @@ void Platform_thread::single_step(bool on)
unsigned long Platform_thread::pager_object_badge() const unsigned long Platform_thread::pager_object_badge() const
{ {
return Native_thread::INVALID_INDEX; return reinterpret_cast<unsigned long>(_name);
} }
@ -314,7 +314,9 @@ Platform_thread::Platform_thread(const char *name, unsigned, int thread_id)
_pd(0), _pager(0), _id_base(cap_selector_allocator()->alloc(1)), _pd(0), _pager(0), _id_base(cap_selector_allocator()->alloc(1)),
_sel_exc_base(Native_thread::INVALID_INDEX), _cpu_no(0), _sel_exc_base(Native_thread::INVALID_INDEX), _cpu_no(0),
_is_main_thread(false), _is_vcpu(false) _is_main_thread(false), _is_vcpu(false)
{ } {
strncpy(_name, name, sizeof(_name));
}
Platform_thread::~Platform_thread() Platform_thread::~Platform_thread()