2011-12-22 16:19:25 +01:00
|
|
|
/*
|
|
|
|
* \brief Test program for raising and handling region-manager faults
|
|
|
|
* \author Norman Feske
|
|
|
|
* \date 2008-09-24
|
|
|
|
*
|
|
|
|
* This program starts itself as child. When started, it first determines
|
2016-11-06 14:26:34 +01:00
|
|
|
* wheather it is parent or child by requesting a RM session. Because the
|
|
|
|
* program blocks all session-creation calls for the RM service, each program
|
|
|
|
* instance can determine its parent or child role by the checking the result
|
|
|
|
* of the session creation.
|
2011-12-22 16:19:25 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
2013-01-10 21:44:47 +01:00
|
|
|
* Copyright (C) 2008-2013 Genode Labs GmbH
|
2011-12-22 16:19:25 +01:00
|
|
|
*
|
|
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
|
|
* under the terms of the GNU General Public License version 2.
|
|
|
|
*/
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
#include <base/component.h>
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
#include <base/log.h>
|
2011-12-22 16:19:25 +01:00
|
|
|
#include <base/child.h>
|
2015-05-05 08:50:16 +02:00
|
|
|
#include <rm_session/connection.h>
|
2016-11-06 14:26:34 +01:00
|
|
|
#include <os/attached_ram_dataspace.h>
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
using namespace Genode;
|
|
|
|
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
|
2011-12-22 16:19:25 +01:00
|
|
|
/***********
|
|
|
|
** Child **
|
|
|
|
***********/
|
|
|
|
|
|
|
|
enum { MANAGED_ADDR = 0x10000000 };
|
|
|
|
|
|
|
|
|
|
|
|
void read_at(addr_t addr)
|
|
|
|
{
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("perform read operation at ", Hex(addr));
|
2011-12-22 16:19:25 +01:00
|
|
|
int value = *(int *)addr;
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("read value ", Hex(value));
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
void modify(addr_t addr)
|
|
|
|
{
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("modify memory at ", Hex(addr), " to ", Hex(++(*(int *)addr)));
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
void main_child()
|
|
|
|
{
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("child role started");
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
/* perform illegal access */
|
|
|
|
read_at(MANAGED_ADDR);
|
|
|
|
|
|
|
|
while (true)
|
|
|
|
modify(MANAGED_ADDR);
|
|
|
|
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("--- child role of region-manager fault test finished ---");
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/************
|
|
|
|
** Parent **
|
|
|
|
************/
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
class Test_child_policy : public Child_policy
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
2016-11-06 14:26:34 +01:00
|
|
|
public:
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
typedef Registered<Genode::Parent_service> Parent_service;
|
|
|
|
typedef Registry<Parent_service> Parent_services;
|
2016-04-20 21:12:57 +02:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
private:
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Env &_env;
|
|
|
|
Parent_services &_parent_services;
|
|
|
|
Signal_context_capability const _fault_handler_sigh;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
public:
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Constructor
|
|
|
|
*/
|
2016-11-06 14:26:34 +01:00
|
|
|
Test_child_policy(Env &env, Parent_services &parent_services,
|
|
|
|
Signal_context_capability fault_handler_sigh)
|
2011-12-22 16:19:25 +01:00
|
|
|
:
|
2016-11-06 14:26:34 +01:00
|
|
|
_env(env),
|
|
|
|
_parent_services(parent_services),
|
|
|
|
_fault_handler_sigh(fault_handler_sigh)
|
|
|
|
{ }
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
|
|
|
/****************************
|
|
|
|
** Child-policy interface **
|
|
|
|
****************************/
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Name name() const override { return "rmchild"; }
|
|
|
|
|
|
|
|
Binary_name binary_name() const override { return "test-rm_fault"; }
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Ram_session &ref_ram() override { return _env.ram(); }
|
|
|
|
|
|
|
|
Ram_session_capability ref_ram_cap() const override { return _env.ram_session_cap(); }
|
|
|
|
|
|
|
|
void init(Ram_session &session, Ram_session_capability cap) override
|
|
|
|
{
|
|
|
|
enum { CHILD_QUOTA = 1*1024*1024 };
|
|
|
|
session.ref_account(_env.ram_session_cap());
|
|
|
|
_env.ram().transfer_quota(cap, CHILD_QUOTA);
|
|
|
|
}
|
|
|
|
|
|
|
|
void init(Pd_session &session, Pd_session_capability cap) override
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
2016-11-06 14:26:34 +01:00
|
|
|
Region_map_client address_space(session.address_space());
|
|
|
|
address_space.fault_handler(_fault_handler_sigh);
|
|
|
|
}
|
|
|
|
|
|
|
|
Service &resolve_session_request(Service::Name const &service_name,
|
|
|
|
Session_state::Args const &args) override
|
|
|
|
{
|
|
|
|
Service *service = nullptr;
|
|
|
|
_parent_services.for_each([&] (Service &s) {
|
|
|
|
if (!service && service_name == s.name())
|
|
|
|
service = &s; });
|
|
|
|
|
|
|
|
if (!service)
|
|
|
|
throw Parent::Service_denied();
|
|
|
|
|
|
|
|
return *service;
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
struct Main_parent
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
2016-11-06 14:26:34 +01:00
|
|
|
Env &_env;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Signal_handler<Main_parent> _fault_handler {
|
|
|
|
_env.ep(), *this, &Main_parent::_handle_fault };
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Heap _heap { _env.ram(), _env.rm() };
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
/* parent services */
|
|
|
|
struct Parent_services : Test_child_policy::Parent_services
|
|
|
|
{
|
|
|
|
Allocator &alloc;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Parent_services(Allocator &alloc) : alloc(alloc)
|
|
|
|
{
|
|
|
|
static const char *names[] = {
|
|
|
|
"RAM", "PD", "CPU", "ROM", "LOG", 0 };
|
|
|
|
for (unsigned i = 0; names[i]; i++)
|
|
|
|
new (alloc) Test_child_policy::Parent_service(*this, names[i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
~Parent_services()
|
|
|
|
{
|
|
|
|
for_each([&] (Test_child_policy::Parent_service &s) { destroy(alloc, &s); });
|
|
|
|
}
|
|
|
|
} _parent_services { _heap };
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
/* create child */
|
2016-11-06 14:26:34 +01:00
|
|
|
Test_child_policy _child_policy { _env, _parent_services, _fault_handler };
|
|
|
|
|
|
|
|
Child _child { _env.rm(), _env.ep().rpc_ep(), _child_policy };
|
|
|
|
|
|
|
|
Region_map_client _address_space { _child.pd().address_space() };
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
/* dataspace used for creating shared memory between parent and child */
|
|
|
|
Attached_ram_dataspace _ds { _env.ram(), _env.rm(), 4096 };
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
unsigned _fault_cnt = 0;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
long volatile &_child_value() { return *_ds.local_addr<long volatile>(); }
|
|
|
|
|
|
|
|
void _handle_fault()
|
|
|
|
{
|
|
|
|
if (_fault_cnt++ == 4) {
|
|
|
|
log("--- parent role of region-manager fault test finished ---");
|
|
|
|
_env.parent().exit(0);
|
|
|
|
}
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
log("received region-map fault signal, request fault state");
|
|
|
|
|
|
|
|
Region_map::State state = _address_space.state();
|
2011-12-22 16:19:25 +01:00
|
|
|
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
char const *state_name =
|
|
|
|
state.type == Region_map::State::READ_FAULT ? "READ_FAULT" :
|
|
|
|
state.type == Region_map::State::WRITE_FAULT ? "WRITE_FAULT" :
|
|
|
|
state.type == Region_map::State::EXEC_FAULT ? "EXEC_FAULT" : "READY";
|
|
|
|
|
|
|
|
log("rm session state is ", state_name, ", pf_addr=", Hex(state.addr));
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
/* ignore spuriuous fault signal */
|
2016-04-15 15:19:22 +02:00
|
|
|
if (state.type == Region_map::State::READY) {
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("ignoring spurious fault signal");
|
2016-11-06 14:26:34 +01:00
|
|
|
return;
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
addr_t child_virt_addr = state.addr & ~(4096 - 1);
|
|
|
|
|
|
|
|
/* allocate dataspace to resolve the fault */
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("attach dataspace to the child at ", Hex(child_virt_addr));
|
2016-11-06 14:26:34 +01:00
|
|
|
_child_value() = 0x1234;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
_address_space.attach_at(_ds.cap(), child_virt_addr);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
/* poll until our child modifies the dataspace content */
|
|
|
|
while (_child_value() == 0x1234);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
log("child modified dataspace content, new value is ",
|
|
|
|
Hex(_child_value()));
|
2011-12-22 16:19:25 +01:00
|
|
|
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("revoke dataspace from child");
|
2016-11-06 14:26:34 +01:00
|
|
|
_address_space.detach((void *)child_virt_addr);
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
Main_parent(Env &env) : _env(env) { }
|
|
|
|
};
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
2016-11-06 14:26:34 +01:00
|
|
|
void Component::construct(Env &env)
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.
While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).
To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.
Issue #1987
2016-07-13 19:07:09 +02:00
|
|
|
log("--- region-manager fault test ---");
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
try {
|
2016-11-06 14:26:34 +01:00
|
|
|
/*
|
|
|
|
* Distinguish parent from child by requesting an service that is only
|
|
|
|
* available to the parent.
|
|
|
|
*/
|
2017-01-05 16:19:16 +01:00
|
|
|
Rm_connection rm(env);
|
2016-11-06 14:26:34 +01:00
|
|
|
static Main_parent parent(env);
|
|
|
|
log("-- parent role started --");
|
|
|
|
}
|
|
|
|
catch (Parent::Service_denied) {
|
2011-12-22 16:19:25 +01:00
|
|
|
main_child();
|
|
|
|
}
|
|
|
|
}
|