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kernel/process: Make CodeSet a regular non-inherited object

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These only exist to ferry data into a Process instance and end up going
out of scope quite early. Because of this, we can just make it a plain
struct for holding things and just std::move it into the relevant
function. There's no need to make this inherit from the kernel's Object
type.
This commit is contained in:
Lioncash 2018-10-12 11:36:31 -04:00
parent 9bf409f275
commit 1abed2f4c4
7 changed files with 45 additions and 83 deletions
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1
src/core/hle/kernel/object.cpp
View file

@ -25,7 +25,6 @@ bool Object::IsWaitable() const {
case HandleType::Process:
case HandleType::AddressArbiter:
case HandleType::ResourceLimit:
case HandleType::CodeSet:
case HandleType::ClientPort:
case HandleType::ClientSession:
return false;

1
src/core/hle/kernel/object.h
View file

@ -26,7 +26,6 @@ enum class HandleType : u32 {
AddressArbiter,
Timer,
ResourceLimit,
CodeSet,
ClientPort,
ServerPort,
ClientSession,

22
src/core/hle/kernel/process.cpp
View file

@ -20,13 +20,7 @@
namespace Kernel {
SharedPtr<CodeSet> CodeSet::Create(KernelCore& kernel, std::string name) {
SharedPtr<CodeSet> codeset(new CodeSet(kernel));
codeset->name = std::move(name);
return codeset;
}
CodeSet::CodeSet(KernelCore& kernel) : Object{kernel} {}
CodeSet::CodeSet() = default;
CodeSet::~CodeSet() = default;
SharedPtr<Process> Process::Create(KernelCore& kernel, std::string&& name) {
@ -224,20 +218,20 @@ void Process::FreeTLSSlot(VAddr tls_address) {
tls_slots[tls_page].reset(tls_slot);
}
void Process::LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr) {
void Process::LoadModule(CodeSet module_, VAddr base_addr) {
const auto MapSegment = [&](CodeSet::Segment& segment, VMAPermission permissions,
MemoryState memory_state) {
auto vma = vm_manager
.MapMemoryBlock(segment.addr + base_addr, module_->memory, segment.offset,
segment.size, memory_state)
const auto vma = vm_manager
.MapMemoryBlock(segment.addr + base_addr, module_.memory,
segment.offset, segment.size, memory_state)
.Unwrap();
vm_manager.Reprotect(vma, permissions);
};
// Map CodeSet segments
MapSegment(module_->CodeSegment(), VMAPermission::ReadExecute, MemoryState::CodeStatic);
MapSegment(module_->RODataSegment(), VMAPermission::Read, MemoryState::CodeMutable);
MapSegment(module_->DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeMutable);
MapSegment(module_.CodeSegment(), VMAPermission::ReadExecute, MemoryState::CodeStatic);
MapSegment(module_.RODataSegment(), VMAPermission::Read, MemoryState::CodeMutable);
MapSegment(module_.DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeMutable);
}
ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {

28
src/core/hle/kernel/process.h
View file

@ -61,26 +61,15 @@ enum class ProcessStatus { Created, Running, Exited };
class ResourceLimit;
struct CodeSet final : public Object {
struct CodeSet final {
struct Segment {
std::size_t offset = 0;
VAddr addr = 0;
u32 size = 0;
};
static SharedPtr<CodeSet> Create(KernelCore& kernel, std::string name);
std::string GetTypeName() const override {
return "CodeSet";
}
std::string GetName() const override {
return name;
}
static const HandleType HANDLE_TYPE = HandleType::CodeSet;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
explicit CodeSet();
~CodeSet();
Segment& CodeSegment() {
return segments[0];
@ -109,14 +98,7 @@ struct CodeSet final : public Object {
std::shared_ptr<std::vector<u8>> memory;
std::array<Segment, 3> segments;
VAddr entrypoint;
/// Name of the process
std::string name;
private:
explicit CodeSet(KernelCore& kernel);
~CodeSet() override;
VAddr entrypoint = 0;
};
class Process final : public Object {
@ -219,7 +201,7 @@ public:
*/
void PrepareForTermination();
void LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr);
void LoadModule(CodeSet module_, VAddr base_addr);
///////////////////////////////////////////////////////////////////////////////////////////////
// Memory Management

32
src/core/loader/elf.cpp
View file

@ -9,16 +9,11 @@
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/elf.h"
#include "core/memory.h"
using Kernel::CodeSet;
using Kernel::SharedPtr;
////////////////////////////////////////////////////////////////////////////////////////////////////
// ELF Header Constants
@ -211,7 +206,7 @@ public:
u32 GetFlags() const {
return (u32)(header->e_flags);
}
SharedPtr<CodeSet> LoadInto(VAddr vaddr);
Kernel::CodeSet LoadInto(VAddr vaddr);
int GetNumSegments() const {
return (int)(header->e_phnum);
@ -274,7 +269,7 @@ const char* ElfReader::GetSectionName(int section) const {
return nullptr;
}
SharedPtr<CodeSet> ElfReader::LoadInto(VAddr vaddr) {
Kernel::CodeSet ElfReader::LoadInto(VAddr vaddr) {
LOG_DEBUG(Loader, "String section: {}", header->e_shstrndx);
// Should we relocate?
@ -302,8 +297,7 @@ SharedPtr<CodeSet> ElfReader::LoadInto(VAddr vaddr) {
std::vector<u8> program_image(total_image_size);
std::size_t current_image_position = 0;
auto& kernel = Core::System::GetInstance().Kernel();
SharedPtr<CodeSet> codeset = CodeSet::Create(kernel, "");
Kernel::CodeSet codeset;
for (unsigned int i = 0; i < header->e_phnum; ++i) {
const Elf32_Phdr* p = &segments[i];
@ -311,14 +305,14 @@ SharedPtr<CodeSet> ElfReader::LoadInto(VAddr vaddr) {
p->p_vaddr, p->p_filesz, p->p_memsz);
if (p->p_type == PT_LOAD) {
CodeSet::Segment* codeset_segment;
Kernel::CodeSet::Segment* codeset_segment;
u32 permission_flags = p->p_flags & (PF_R | PF_W | PF_X);
if (permission_flags == (PF_R | PF_X)) {
codeset_segment = &codeset->CodeSegment();
codeset_segment = &codeset.CodeSegment();
} else if (permission_flags == (PF_R)) {
codeset_segment = &codeset->RODataSegment();
codeset_segment = &codeset.RODataSegment();
} else if (permission_flags == (PF_R | PF_W)) {
codeset_segment = &codeset->DataSegment();
codeset_segment = &codeset.DataSegment();
} else {
LOG_ERROR(Loader, "Unexpected ELF PT_LOAD segment id {} with flags {:X}", i,
p->p_flags);
@ -345,8 +339,8 @@ SharedPtr<CodeSet> ElfReader::LoadInto(VAddr vaddr) {
}
}
codeset->entrypoint = base_addr + header->e_entry;
codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
codeset.entrypoint = base_addr + header->e_entry;
codeset.memory = std::make_shared<std::vector<u8>>(std::move(program_image));
LOG_DEBUG(Loader, "Done loading.");
@ -397,11 +391,11 @@ ResultStatus AppLoader_ELF::Load(Kernel::Process& process) {
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
ElfReader elf_reader(&buffer[0]);
SharedPtr<CodeSet> codeset = elf_reader.LoadInto(base_address);
codeset->name = file->GetName();
Kernel::CodeSet codeset = elf_reader.LoadInto(base_address);
const VAddr entry_point = codeset.entrypoint;
process.LoadModule(codeset, codeset->entrypoint);
process.Run(codeset->entrypoint, 48, Memory::DEFAULT_STACK_SIZE);
process.LoadModule(std::move(codeset), entry_point);
process.Run(entry_point, 48, Memory::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;

21
src/core/loader/nro.cpp
View file

@ -14,7 +14,6 @@
#include "core/file_sys/control_metadata.h"
#include "core/file_sys/vfs_offset.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nro.h"
@ -139,22 +138,21 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
}
// Build program image
auto& kernel = Core::System::GetInstance().Kernel();
Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create(kernel, "");
std::vector<u8> program_image = file->ReadBytes(PageAlignSize(nro_header.file_size));
if (program_image.size() != PageAlignSize(nro_header.file_size)) {
return {};
}
Kernel::CodeSet codeset;
for (std::size_t i = 0; i < nro_header.segments.size(); ++i) {
codeset->segments[i].addr = nro_header.segments[i].offset;
codeset->segments[i].offset = nro_header.segments[i].offset;
codeset->segments[i].size = PageAlignSize(nro_header.segments[i].size);
codeset.segments[i].addr = nro_header.segments[i].offset;
codeset.segments[i].offset = nro_header.segments[i].offset;
codeset.segments[i].size = PageAlignSize(nro_header.segments[i].size);
}
if (!Settings::values.program_args.empty()) {
const auto arg_data = Settings::values.program_args;
codeset->DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
codeset.DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
NSOArgumentHeader args_header{
NSO_ARGUMENT_DATA_ALLOCATION_SIZE, static_cast<u32_le>(arg_data.size()), {}};
const auto end_offset = program_image.size();
@ -176,16 +174,15 @@ bool AppLoader_NRO::LoadNro(FileSys::VirtualFile file, VAddr load_base) {
// Resize program image to include .bss section and page align each section
bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
}
codeset->DataSegment().size += bss_size;
codeset.DataSegment().size += bss_size;
program_image.resize(static_cast<u32>(program_image.size()) + bss_size);
// Load codeset for current process
codeset->name = file->GetName();
codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
Core::CurrentProcess()->LoadModule(codeset, load_base);
codeset.memory = std::make_shared<std::vector<u8>>(std::move(program_image));
Core::CurrentProcess()->LoadModule(std::move(codeset), load_base);
// Register module with GDBStub
GDBStub::RegisterModule(codeset->name, load_base, load_base);
GDBStub::RegisterModule(file->GetName(), load_base, load_base);
return true;
}

21
src/core/loader/nso.cpp
View file

@ -12,7 +12,6 @@
#include "core/core.h"
#include "core/file_sys/patch_manager.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/loader/nso.h"
@ -111,8 +110,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
return {};
// Build program image
auto& kernel = Core::System::GetInstance().Kernel();
Kernel::SharedPtr<Kernel::CodeSet> codeset = Kernel::CodeSet::Create(kernel, "");
Kernel::CodeSet codeset;
std::vector<u8> program_image;
for (std::size_t i = 0; i < nso_header.segments.size(); ++i) {
std::vector<u8> data =
@ -122,14 +120,14 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
}
program_image.resize(nso_header.segments[i].location);
program_image.insert(program_image.end(), data.begin(), data.end());
codeset->segments[i].addr = nso_header.segments[i].location;
codeset->segments[i].offset = nso_header.segments[i].location;
codeset->segments[i].size = PageAlignSize(static_cast<u32>(data.size()));
codeset.segments[i].addr = nso_header.segments[i].location;
codeset.segments[i].offset = nso_header.segments[i].location;
codeset.segments[i].size = PageAlignSize(static_cast<u32>(data.size()));
}
if (should_pass_arguments && !Settings::values.program_args.empty()) {
const auto arg_data = Settings::values.program_args;
codeset->DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
codeset.DataSegment().size += NSO_ARGUMENT_DATA_ALLOCATION_SIZE;
NSOArgumentHeader args_header{
NSO_ARGUMENT_DATA_ALLOCATION_SIZE, static_cast<u32_le>(arg_data.size()), {}};
const auto end_offset = program_image.size();
@ -154,7 +152,7 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
// Resize program image to include .bss section and page align each section
bss_size = PageAlignSize(mod_header.bss_end_offset - mod_header.bss_start_offset);
}
codeset->DataSegment().size += bss_size;
codeset.DataSegment().size += bss_size;
const u32 image_size{PageAlignSize(static_cast<u32>(program_image.size()) + bss_size)};
program_image.resize(image_size);
@ -170,12 +168,11 @@ VAddr AppLoader_NSO::LoadModule(FileSys::VirtualFile file, VAddr load_base,
}
// Load codeset for current process
codeset->name = file->GetName();
codeset->memory = std::make_shared<std::vector<u8>>(std::move(program_image));
Core::CurrentProcess()->LoadModule(codeset, load_base);
codeset.memory = std::make_shared<std::vector<u8>>(std::move(program_image));
Core::CurrentProcess()->LoadModule(std::move(codeset), load_base);
// Register module with GDBStub
GDBStub::RegisterModule(codeset->name, load_base, load_base);
GDBStub::RegisterModule(file->GetName(), load_base, load_base);
return load_base + image_size;
}