Process: Support parsing of exheader kernel caps

This commit is contained in:
Yuri Kunde Schlesner 2015-05-08 16:51:48 -03:00
parent 326ec51261
commit 2af30d465f
6 changed files with 77 additions and 4 deletions

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@ -3,16 +3,18 @@
// Refer to the license.txt file included.
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/logging/log.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/thread.h"
#include "core/mem_map.h"
namespace Kernel {
SharedPtr<Process> Process::Create(std::string name, u64 program_id) {
SharedPtr<Process> process(new Process);
process->svc_access_mask.set();
process->name = std::move(name);
process->program_id = program_id;
@ -20,7 +22,72 @@ SharedPtr<Process> Process::Create(std::string name, u64 program_id) {
}
void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
//UNIMPLEMENTED();
for (int i = 0; i < len; ++i) {
u32 descriptor = kernel_caps[i];
u32 type = descriptor >> 20;
if (descriptor == 0xFFFFFFFF) {
// Unused descriptor entry
continue;
} else if ((type & 0xF00) == 0xE00) { // 0x0FFF
// Allowed interrupts list
LOG_WARNING(Loader, "ExHeader allowed interrupts list ignored");
} else if ((type & 0xF80) == 0xF00) { // 0x07FF
// Allowed syscalls mask
unsigned int index = ((descriptor >> 24) & 7) * 24;
u32 bits = descriptor & 0xFFFFFF;
while (bits && index < svc_access_mask.size()) {
svc_access_mask.set(index, bits & 1);
++index; bits >>= 1;
}
} else if ((type & 0xFF0) == 0xFE0) { // 0x00FF
// Handle table size
handle_table_size = descriptor & 0x3FF;
} else if ((type & 0xFF8) == 0xFF0) { // 0x007F
// Misc. flags
bool allow_debug = descriptor & BIT(0);
bool force_debug = descriptor & BIT(1);
bool allow_nonalphanum = descriptor & BIT(2);
shared_page_writable = descriptor & BIT(3);
privileged_priority = descriptor & BIT(4);
bool allow_main_args = descriptor & BIT(5);
bool shared_device_mem = descriptor & BIT(6);
bool runnable_on_sleep = descriptor & BIT(7);
loaded_high = descriptor & BIT(12);
memory_region = MemoryRegion((descriptor >> 8) & 0xF);
} else if ((type & 0xFFE) == 0xFF8) { // 0x001F
// Mapped memory range
if (i+1 >= len || ((kernel_caps[i+1] >> 20) & 0xFFE) != 0xFF8) {
LOG_WARNING(Loader, "Incomplete exheader memory range descriptor ignored.");
continue;
}
u32 end_desc = kernel_caps[i+1];
++i; // Skip over the second descriptor on the next iteration
StaticAddressMapping mapping;
mapping.address = descriptor << 12;
mapping.size = (end_desc << 12) - mapping.address;
mapping.writable = descriptor & BIT(20);
mapping.unk_flag = end_desc & BIT(20);
static_address_mappings.push_back(mapping);
} else if ((type & 0xFFF) == 0xFFE) { // 0x000F
// Mapped memory page
StaticAddressMapping mapping;
mapping.address = descriptor << 12;
mapping.size = Memory::PAGE_SIZE;
mapping.writable = true; // TODO: Not sure if correct
mapping.unk_flag = false;
} else if ((type & 0xFE0) == 0xFC0) { // 0x01FF
// Kernel version
int minor = descriptor & 0xFF;
int major = (descriptor >> 8) & 0xFF;
LOG_INFO(Loader, "ExHeader kernel version ignored: %d.%d", major, minor);
} else {
LOG_ERROR(Loader, "Unhandled kernel caps descriptor: 0x%08X", descriptor);
}
}
}
void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {

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@ -14,10 +14,11 @@
namespace Kernel {
struct StaticAddressMapping {
// Address and size must be 4K-aligned
// Address and size must be page-aligned
VAddr address;
u32 size;
bool writable;
bool unk_flag;
};
enum class MemoryRegion {

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@ -231,6 +231,7 @@ ResultStatus AppLoader_THREEDSX::Load() {
return ResultStatus::Error;
Kernel::g_current_process = Kernel::Process::Create(filename, 0);
Kernel::g_current_process->svc_access_mask.set();
Kernel::g_current_process->static_address_mappings = default_address_mappings;
Load3DSXFile(*file, Memory::EXEFS_CODE_VADDR);

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@ -351,6 +351,7 @@ ResultStatus AppLoader_ELF::Load() {
return ResultStatus::Error;
Kernel::g_current_process = Kernel::Process::Create(filename, 0);
Kernel::g_current_process->svc_access_mask.set();
Kernel::g_current_process->static_address_mappings = default_address_mappings;
ElfReader elf_reader(&buffer[0]);

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@ -141,6 +141,7 @@ ResultStatus LoadFile(const std::string& filename) {
case FileType::BIN:
{
Kernel::g_current_process = Kernel::Process::Create(filename_filename, 0);
Kernel::g_current_process->svc_access_mask.set();
Kernel::g_current_process->static_address_mappings = default_address_mappings;
size_t size = (size_t)file->GetSize();

View file

@ -10,6 +10,8 @@ namespace Memory {
////////////////////////////////////////////////////////////////////////////////////////////////////
const u32 PAGE_SIZE = 0x1000;
enum : u32 {
BOOTROM_SIZE = 0x00010000, ///< Bootrom (super secret code/data @ 0x8000) size
BOOTROM_PADDR = 0x00000000, ///< Bootrom physical address