1
0
Fork 0
forked from suyu/suyu

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

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

View file

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

View file

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

View file

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

View file

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

View file

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

View file

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

View file

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