2011-12-22 16:19:25 +01:00
|
|
|
/*
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|
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|
|
* \brief OKL4 platform interface implementation
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* \author Norman Feske
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* \date 2009-03-31
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*/
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/*
|
2017-02-20 13:23:52 +01:00
|
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* Copyright (C) 2009-2017 Genode Labs GmbH
|
2011-12-22 16:19:25 +01:00
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*
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|
* This file is part of the Genode OS framework, which is distributed
|
2017-02-20 13:23:52 +01:00
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* under the terms of the GNU Affero General Public License version 3.
|
2011-12-22 16:19:25 +01:00
|
|
|
*/
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|
|
/* Genode includes */
|
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/allocator_avl.h>
|
|
|
|
|
#include <base/sleep.h>
|
|
|
|
|
#include <util/misc_math.h>
|
|
|
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|
|
2016-01-22 14:31:58 +01:00
|
|
|
/* base-internal includes */
|
|
|
|
|
#include <base/internal/crt0.h>
|
2016-03-03 17:57:29 +01:00
|
|
|
#include <base/internal/stack_area.h>
|
2016-06-13 13:53:58 +02:00
|
|
|
#include <base/internal/native_utcb.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/internal/globals.h>
|
Follow practices suggested by "Effective C++"
The patch adjust the code of the base, base-<kernel>, and os repository.
To adapt existing components to fix violations of the best practices
suggested by "Effective C++" as reported by the -Weffc++ compiler
argument. The changes follow the patterns outlined below:
* A class with virtual functions can no longer publicly inherit base
classed without a vtable. The inherited object may either be moved
to a member variable, or inherited privately. The latter would be
used for classes that inherit 'List::Element' or 'Avl_node'. In order
to enable the 'List' and 'Avl_tree' to access the meta data, the
'List' must become a friend.
* Instead of adding a virtual destructor to abstract base classes,
we inherit the new 'Interface' class, which contains a virtual
destructor. This way, single-line abstract base classes can stay
as compact as they are now. The 'Interface' utility resides in
base/include/util/interface.h.
* With the new warnings enabled, all member variables must be explicitly
initialized. Basic types may be initialized with '='. All other types
are initialized with braces '{ ... }' or as class initializers. If
basic types and non-basic types appear in a row, it is nice to only
use the brace syntax (also for basic types) and align the braces.
* If a class contains pointers as members, it must now also provide a
copy constructor and assignment operator. In the most cases, one
would make them private, effectively disallowing the objects to be
copied. Unfortunately, this warning cannot be fixed be inheriting
our existing 'Noncopyable' class (the compiler fails to detect that
the inheriting class cannot be copied and still gives the error).
For now, we have to manually add declarations for both the copy
constructor and assignment operator as private class members. Those
declarations should be prepended with a comment like this:
/*
* Noncopyable
*/
Thread(Thread const &);
Thread &operator = (Thread const &);
In the future, we should revisit these places and try to replace
the pointers with references. In the presence of at least one
reference member, the compiler would no longer implicitly generate
a copy constructor. So we could remove the manual declaration.
Issue #465
2017-12-21 15:42:15 +01:00
|
|
|
#include <base/internal/okl4.h>
|
2016-01-22 14:31:58 +01:00
|
|
|
|
2011-12-22 16:19:25 +01:00
|
|
|
/* core includes */
|
2016-09-15 16:08:33 +02:00
|
|
|
#include <boot_modules.h>
|
2017-12-11 13:05:23 +01:00
|
|
|
#include <core_log.h>
|
2011-12-22 16:19:25 +01:00
|
|
|
#include <platform.h>
|
|
|
|
|
#include <platform_thread.h>
|
|
|
|
|
#include <platform_pd.h>
|
|
|
|
|
#include <map_local.h>
|
|
|
|
|
|
|
|
|
|
using namespace Genode;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************
|
|
|
|
|
** Support for core memory management **
|
|
|
|
|
****************************************/
|
|
|
|
|
|
2015-09-17 14:16:59 +02:00
|
|
|
bool Mapped_mem_allocator::_map_local(addr_t virt_addr, addr_t phys_addr,
|
|
|
|
|
unsigned size) {
|
2014-03-10 15:24:53 +01:00
|
|
|
return map_local(phys_addr, virt_addr, size / get_page_size()); }
|
|
|
|
|
|
|
|
|
|
|
Follow practices suggested by "Effective C++"
The patch adjust the code of the base, base-<kernel>, and os repository.
To adapt existing components to fix violations of the best practices
suggested by "Effective C++" as reported by the -Weffc++ compiler
argument. The changes follow the patterns outlined below:
* A class with virtual functions can no longer publicly inherit base
classed without a vtable. The inherited object may either be moved
to a member variable, or inherited privately. The latter would be
used for classes that inherit 'List::Element' or 'Avl_node'. In order
to enable the 'List' and 'Avl_tree' to access the meta data, the
'List' must become a friend.
* Instead of adding a virtual destructor to abstract base classes,
we inherit the new 'Interface' class, which contains a virtual
destructor. This way, single-line abstract base classes can stay
as compact as they are now. The 'Interface' utility resides in
base/include/util/interface.h.
* With the new warnings enabled, all member variables must be explicitly
initialized. Basic types may be initialized with '='. All other types
are initialized with braces '{ ... }' or as class initializers. If
basic types and non-basic types appear in a row, it is nice to only
use the brace syntax (also for basic types) and align the braces.
* If a class contains pointers as members, it must now also provide a
copy constructor and assignment operator. In the most cases, one
would make them private, effectively disallowing the objects to be
copied. Unfortunately, this warning cannot be fixed be inheriting
our existing 'Noncopyable' class (the compiler fails to detect that
the inheriting class cannot be copied and still gives the error).
For now, we have to manually add declarations for both the copy
constructor and assignment operator as private class members. Those
declarations should be prepended with a comment like this:
/*
* Noncopyable
*/
Thread(Thread const &);
Thread &operator = (Thread const &);
In the future, we should revisit these places and try to replace
the pointers with references. In the presence of at least one
reference member, the compiler would no longer implicitly generate
a copy constructor. So we could remove the manual declaration.
Issue #465
2017-12-21 15:42:15 +01:00
|
|
|
bool Mapped_mem_allocator::_unmap_local(addr_t virt_addr, addr_t,
|
2016-07-15 11:05:09 +02:00
|
|
|
unsigned size) {
|
2014-03-10 15:24:53 +01:00
|
|
|
return unmap_local(virt_addr, size / get_page_size()); }
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
/**********************
|
|
|
|
|
** Boot-info parser **
|
|
|
|
|
**********************/
|
|
|
|
|
|
|
|
|
|
int Platform::bi_init_mem(Okl4::uintptr_t virt_base, Okl4::uintptr_t virt_end,
|
|
|
|
|
Okl4::uintptr_t phys_base, Okl4::uintptr_t phys_end,
|
|
|
|
|
const Okl4::bi_user_data_t *data)
|
|
|
|
|
{
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Platform &p = *(Platform *)data->user_data;
|
|
|
|
|
p._core_mem_alloc.phys_alloc().add_range(phys_base, phys_end - phys_base + 1);
|
|
|
|
|
p._core_mem_alloc.virt_alloc().add_range(virt_base, virt_end - virt_base + 1);
|
2011-12-22 16:19:25 +01:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
Follow practices suggested by "Effective C++"
The patch adjust the code of the base, base-<kernel>, and os repository.
To adapt existing components to fix violations of the best practices
suggested by "Effective C++" as reported by the -Weffc++ compiler
argument. The changes follow the patterns outlined below:
* A class with virtual functions can no longer publicly inherit base
classed without a vtable. The inherited object may either be moved
to a member variable, or inherited privately. The latter would be
used for classes that inherit 'List::Element' or 'Avl_node'. In order
to enable the 'List' and 'Avl_tree' to access the meta data, the
'List' must become a friend.
* Instead of adding a virtual destructor to abstract base classes,
we inherit the new 'Interface' class, which contains a virtual
destructor. This way, single-line abstract base classes can stay
as compact as they are now. The 'Interface' utility resides in
base/include/util/interface.h.
* With the new warnings enabled, all member variables must be explicitly
initialized. Basic types may be initialized with '='. All other types
are initialized with braces '{ ... }' or as class initializers. If
basic types and non-basic types appear in a row, it is nice to only
use the brace syntax (also for basic types) and align the braces.
* If a class contains pointers as members, it must now also provide a
copy constructor and assignment operator. In the most cases, one
would make them private, effectively disallowing the objects to be
copied. Unfortunately, this warning cannot be fixed be inheriting
our existing 'Noncopyable' class (the compiler fails to detect that
the inheriting class cannot be copied and still gives the error).
For now, we have to manually add declarations for both the copy
constructor and assignment operator as private class members. Those
declarations should be prepended with a comment like this:
/*
* Noncopyable
*/
Thread(Thread const &);
Thread &operator = (Thread const &);
In the future, we should revisit these places and try to replace
the pointers with references. In the presence of at least one
reference member, the compiler would no longer implicitly generate
a copy constructor. So we could remove the manual declaration.
Issue #465
2017-12-21 15:42:15 +01:00
|
|
|
int Platform::bi_add_virt_mem(Okl4::bi_name_t, Okl4::uintptr_t base,
|
2011-12-22 16:19:25 +01:00
|
|
|
Okl4::uintptr_t end, const Okl4::bi_user_data_t *data)
|
|
|
|
|
{
|
|
|
|
|
/* prevent first page from being added to core memory */
|
|
|
|
|
if (base < get_page_size() || end < get_page_size())
|
|
|
|
|
return 0;
|
|
|
|
|
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Platform &p = *(Platform *)data->user_data;
|
|
|
|
|
p._core_mem_alloc.virt_alloc().add_range(base, end - base + 1);
|
2011-12-22 16:19:25 +01:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int Platform::bi_add_phys_mem(Okl4::bi_name_t pool, Okl4::uintptr_t base,
|
|
|
|
|
Okl4::uintptr_t end, const Okl4::bi_user_data_t *data)
|
|
|
|
|
{
|
|
|
|
|
if (pool == 2) {
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Platform &p = *(Platform *)data->user_data;
|
|
|
|
|
p._core_mem_alloc.phys_alloc().add_range(base, end - base + 1);
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2014-03-10 15:24:53 +01:00
|
|
|
static char init_slab_block_rom[get_page_size()];
|
|
|
|
|
static char init_slab_block_thread[get_page_size()];
|
|
|
|
|
|
2019-01-30 17:53:16 +01:00
|
|
|
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Platform::Platform()
|
|
|
|
|
:
|
|
|
|
|
_io_mem_alloc(&core_mem_alloc()), _io_port_alloc(&core_mem_alloc()),
|
|
|
|
|
_irq_alloc(&core_mem_alloc()),
|
2019-01-30 17:53:16 +01:00
|
|
|
_rom_slab(&core_mem_alloc(), &init_slab_block_rom),
|
|
|
|
|
_thread_slab(core_mem_alloc(), &init_slab_block_thread)
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* We must be single-threaded at this stage and so this is safe.
|
|
|
|
|
*/
|
|
|
|
|
static bool initialized = 0;
|
|
|
|
|
if (initialized) panic("Platform constructed twice!");
|
|
|
|
|
initialized = true;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Determine address of boot-info structure. On startup, the OKL4 kernel
|
|
|
|
|
* provides this address in roottask's UTCB message register 1.
|
|
|
|
|
*/
|
|
|
|
|
Okl4::L4_Word_t boot_info_addr;
|
|
|
|
|
Okl4::L4_StoreMR(1, &boot_info_addr);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Request base address for UTCB locations
|
|
|
|
|
*/
|
|
|
|
|
_utcb_base = (addr_t)Okl4::utcb_base_get();
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Define our own thread ID
|
|
|
|
|
*/
|
|
|
|
|
Okl4::__L4_TCR_Set_ThreadWord(UTCB_TCR_THREAD_WORD_MYSELF, Okl4::L4_rootserver.raw);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* By default, the first roottask thread is executed at maxiumum priority.
|
|
|
|
|
* To make preemptive scheduler work as expected, we set the priority of
|
|
|
|
|
* ourself to the default priority of all other threads, which is 100 on
|
|
|
|
|
* OKL4.
|
|
|
|
|
*/
|
|
|
|
|
L4_Set_Priority(Okl4::L4_Myself(), Platform_thread::DEFAULT_PRIORITY);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Invoke boot-info parser for determining the memory configuration and
|
|
|
|
|
* the location of the boot modules.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Initialize callback function for parsing the boot-info
|
|
|
|
|
*
|
|
|
|
|
* The supplied callback functions differ slightly from the interface
|
|
|
|
|
* used by the boot-info library in that they do not have a return
|
|
|
|
|
* type.
|
|
|
|
|
*/
|
|
|
|
|
static Okl4::bi_callbacks_t callbacks;
|
|
|
|
|
callbacks.init_mem = Platform::bi_init_mem;
|
|
|
|
|
callbacks.add_virt_mem = Platform::bi_add_virt_mem;
|
|
|
|
|
callbacks.add_phys_mem = Platform::bi_add_phys_mem;
|
|
|
|
|
|
|
|
|
|
Okl4::bootinfo_parse((void *)boot_info_addr, &callbacks, this);
|
|
|
|
|
|
|
|
|
|
/* initialize interrupt allocator */
|
|
|
|
|
_irq_alloc.add_range(0, 0x10);
|
|
|
|
|
|
|
|
|
|
/* I/O memory could be the whole user address space */
|
|
|
|
|
_io_mem_alloc.add_range(0, ~0);
|
|
|
|
|
|
|
|
|
|
/* I/O port allocator (only meaningful for x86) */
|
|
|
|
|
_io_port_alloc.add_range(0, 0x10000);
|
|
|
|
|
|
2017-08-17 16:20:56 +02:00
|
|
|
_init_rom_modules();
|
2016-09-15 16:08:33 +02:00
|
|
|
|
2016-01-23 14:42:55 +01:00
|
|
|
/* preserve stack area in core's virtual address space */
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
_core_mem_alloc.virt_alloc().remove_range(stack_area_virtual_base(),
|
|
|
|
|
stack_area_virtual_size());
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
_vm_start = 0x1000;
|
2017-11-20 23:29:43 +01:00
|
|
|
_vm_size = 0xc0000000 - _vm_start;
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2017-12-13 19:52:06 +01:00
|
|
|
log(_rom_fs);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
/* setup task object for core task */
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
_core_pd = new (core_mem_alloc()) Platform_pd(true);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* We setup the thread object for thread0 in core task using a special
|
|
|
|
|
* interface that allows us to specify the thread ID. For core this creates
|
|
|
|
|
* the situation that task_id == thread_id of first task. But since we do
|
|
|
|
|
* not destroy this task, it should be no problem.
|
|
|
|
|
*/
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Platform_thread &core_thread =
|
|
|
|
|
*new (&_thread_slab) Platform_thread("core.main");
|
2011-12-22 16:19:25 +01:00
|
|
|
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
core_thread.set_l4_thread_id(Okl4::L4_rootserver);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
_core_pd->bind_thread(core_thread);
|
2017-12-11 13:05:23 +01:00
|
|
|
|
|
|
|
|
/* core log as ROM module */
|
|
|
|
|
{
|
|
|
|
|
void * core_local_ptr = nullptr;
|
|
|
|
|
void * phys_ptr = nullptr;
|
|
|
|
|
unsigned const pages = 1;
|
|
|
|
|
size_t const log_size = pages << get_page_size_log2();
|
|
|
|
|
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
ram_alloc().alloc_aligned(log_size, &phys_ptr, get_page_size_log2());
|
2017-12-11 13:05:23 +01:00
|
|
|
addr_t const phys_addr = reinterpret_cast<addr_t>(phys_ptr);
|
|
|
|
|
|
|
|
|
|
/* let one page free after the log buffer */
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
region_alloc().alloc_aligned(log_size, &core_local_ptr, get_page_size_log2());
|
2017-12-11 13:05:23 +01:00
|
|
|
addr_t const core_local_addr = reinterpret_cast<addr_t>(core_local_ptr);
|
|
|
|
|
|
|
|
|
|
map_local(phys_addr, core_local_addr, pages);
|
|
|
|
|
memset(core_local_ptr, 0, log_size);
|
|
|
|
|
|
|
|
|
|
_rom_fs.insert(new (core_mem_alloc()) Rom_module(phys_addr, log_size,
|
|
|
|
|
"core_log"));
|
|
|
|
|
|
|
|
|
|
init_core_log(Core_log_range { core_local_addr, log_size } );
|
|
|
|
|
}
|
2011-12-22 16:19:25 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/********************************
|
|
|
|
|
** Generic platform interface **
|
|
|
|
|
********************************/
|
|
|
|
|
|
2020-01-22 16:58:21 +01:00
|
|
|
void Platform::wait_for_exit()
|
2011-12-22 16:19:25 +01:00
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* On OKL4, core never exits. So let us sleep forever.
|
|
|
|
|
*/
|
|
|
|
|
sleep_forever();
|
|
|
|
|
}
|
