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Merge pull request #4 from Atmosphere-NX/master

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New upstream not yet tested on xssf0
This commit is contained in:
Dave / Xieon 2024-10-02 20:54:52 -04:00 committed by GitHub
commit b6fd951a9d
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GPG Key ID: B5690EEEBB952194
12 changed files with 101 additions and 79 deletions
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4
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
View File

@ -192,7 +192,7 @@ namespace ams::kern {
u32 m_program_type;
private:
constexpr bool SetSvcAllowed(u32 id) {
if (AMS_LIKELY(id < m_svc_access_flags.GetCount())) {
if (AMS_LIKELY(id < static_cast<u32>(m_svc_access_flags.GetCount()))) {
m_svc_access_flags[id] = true;
return true;
} else {
@ -201,7 +201,7 @@ namespace ams::kern {
}
constexpr bool SetInterruptPermitted(u32 id) {
if (AMS_LIKELY(id < m_irq_access_flags.GetCount())) {
if (AMS_LIKELY(id < static_cast<u32>(m_irq_access_flags.GetCount()))) {
m_irq_access_flags[id] = true;
return true;
} else {

41
libraries/libmesosphere/source/arch/arm64/kern_k_debug.cpp
View File

@ -623,11 +623,6 @@ namespace ams::kern::arch::arm64 {
}
}
/* Read the first instruction. */
if (!ReadValue(std::addressof(temp_32), process, base_address)) {
return PrintAddress(address);
}
/* Get the module name. */
char module_name[0x20];
const bool has_module_name = GetModuleName(module_name, sizeof(module_name), process, base_address);
@ -637,36 +632,32 @@ namespace ams::kern::arch::arm64 {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (temp_32 == 0) {
/* Module is dynamically loaded by rtld. */
/* Locate .dyn using rocrt::ModuleHeader. */
{
/* Determine the ModuleHeader offset. */
u32 mod_offset;
if (!ReadValue(std::addressof(mod_offset), process, base_address + sizeof(u32))) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (!ReadValue(std::addressof(temp_32), process, base_address + mod_offset)) {
/* Read the signature. */
constexpr u32 SignatureFieldOffset = AMS_OFFSETOF(rocrt::ModuleHeader, signature);
if (!ReadValue(std::addressof(temp_32), process, base_address + mod_offset + SignatureFieldOffset)) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (temp_32 != 0x30444F4D) { /* MOD0 */
/* Check that the module signature is expected. */
if (temp_32 != rocrt::ModuleHeaderVersion) { /* MOD0 */
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (!ReadValue(std::addressof(temp_32), process, base_address + mod_offset + sizeof(u32))) {
/* Determine the dynamic offset. */
constexpr u32 DynamicFieldOffset = AMS_OFFSETOF(rocrt::ModuleHeader, dynamic_offset);
if (!ReadValue(std::addressof(temp_32), process, base_address + mod_offset + DynamicFieldOffset)) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
dyn_address = base_address + mod_offset + temp_32;
} else if (temp_32 == 0x14000002) {
/* Module embeds rtld. */
if (!ReadValue(std::addressof(temp_32), process, base_address + 0x5C)) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (temp_32 != 0x94000002) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
if (!ReadValue(std::addressof(temp_32), process, base_address + 0x60)) {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
}
dyn_address = base_address + 0x60 + temp_32;
} else {
return PrintAddressWithModuleName(address, has_module_name, module_name, base_address);
dyn_address = module.start_address + mod_offset + temp_32;
}
/* Locate tables inside .dyn. */

3
mesosphere/kernel/kernel.ld
View File

@ -14,6 +14,7 @@ SECTIONS
/* =========== CODE section =========== */
PROVIDE(__start__ = 0x0);
. = __start__;
__bin_start__ = .;
__code_start = . ;
.start :
@ -159,6 +160,7 @@ SECTIONS
__bss_start__ = .;
.rela.dyn : { *(.rela.*) } :data
.relr.dyn : { *(.relr.*) } :data
.bss ADDR(.rela.dyn) (NOLOAD) : {
*(.dynbss)
@ -169,6 +171,7 @@ SECTIONS
__bss_end__ = .;
__bin_end__ = .;
__end__ = ABSOLUTE(.);
/* ==================

2
mesosphere/kernel/kernel.specs
View File

@ -1,7 +1,7 @@
%rename link old_link
*link:
%(old_link) -T %:getenv(ATMOSPHERE_TOPDIR /kernel.ld) -pie --gc-sections -z text -z nodynamic-undefined-weak -nostdlib
%(old_link) -T %:getenv(ATMOSPHERE_TOPDIR /kernel.ld) -pie --gc-sections -z text -z nodynamic-undefined-weak -z pack-relative-relocs -nostdlib
*startfile:
crti%O%s crtbegin%O%s

8
mesosphere/kernel/source/arch/arm64/init/kern_init_core.cpp
View File

@ -15,8 +15,8 @@
*/
#include <mesosphere.hpp>
extern "C" void _start();
extern "C" void __end__();
extern "C" void __bin_start__();
extern "C" void __bin_end__();
namespace ams::kern {
@ -264,8 +264,8 @@ namespace ams::kern::init {
KMemoryLayout::GetPhysicalMemoryRegionTree().InsertDirectly(KernelPhysicalAddressSpaceBase, KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceSize - 1);
/* Save start and end for ease of use. */
const uintptr_t code_start_virt_addr = reinterpret_cast<uintptr_t>(_start);
const uintptr_t code_end_virt_addr = reinterpret_cast<uintptr_t>(__end__);
const uintptr_t code_start_virt_addr = reinterpret_cast<uintptr_t>(__bin_start__);
const uintptr_t code_end_virt_addr = reinterpret_cast<uintptr_t>(__bin_end__);
/* Setup the containing kernel region. */
constexpr size_t KernelRegionSize = 1_GB;

7
mesosphere/kernel_ldr/kernel_ldr.ld
View File

@ -12,6 +12,7 @@ SECTIONS
/* =========== CODE section =========== */
PROVIDE(__start__ = 0x0);
. = __start__;
__bin_start__ = .;
__code_start = . ;
.crt0 :
@ -74,9 +75,8 @@ SECTIONS
.gnu_extab : ONLY_IF_RO { *(.gnu_extab*) } : rodata
.dynamic : { *(.dynamic) } :krnlldr :dyn
.dynsym : { *(.dynsym) } :krnlldr
.dynstr : { *(.dynstr) } :krnlldr
.rela.dyn : { *(.rela.*) } :krnlldr
.relr.dyn : { *(.relr.*) } :krnlldr
.hash : { *(.hash) } :krnlldr
.gnu.hash : { *(.gnu.hash) } :krnlldr
.gnu.version : { *(.gnu.version) } :krnlldr
@ -159,6 +159,7 @@ SECTIONS
} :krnlldr
__bss_end__ = .;
__bin_end__ = .;
__end__ = ABSOLUTE(.) ;
/* ==================
@ -166,7 +167,7 @@ SECTIONS
================== */
/* Discard sections that difficult post-processing */
/DISCARD/ : { *(.group .comment .note .interp) }
/DISCARD/ : { *(.group .comment .note .interp .dynsym .dynstr) }
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }

2
mesosphere/kernel_ldr/kernel_ldr.specs
View File

@ -1,7 +1,7 @@
%rename link old_link
*link:
%(old_link) -T %:getenv(ATMOSPHERE_TOPDIR /kernel_ldr.ld) -pie --gc-sections -z text -z nodynamic-undefined-weak -nostdlib
%(old_link) -T %:getenv(ATMOSPHERE_TOPDIR /kernel_ldr.ld) -pie --gc-sections -z text -z nodynamic-undefined-weak -z pack-relative-relocs -nostdlib
*startfile:
crti%O%s crtbegin%O%s

8
mesosphere/kernel_ldr/source/kern_init_loader.cpp
View File

@ -19,8 +19,8 @@
/* Necessary for calculating kernelldr size/base for initial identity mapping */
extern "C" {
extern const u8 __start__[];
extern const u8 __end__[];
extern const u8 __bin_start__[];
extern const u8 __bin_end__[];
}
@ -88,8 +88,8 @@ namespace ams::kern::init::loader {
/* Map in an RWX identity mapping for ourselves. */
constexpr PageTableEntry KernelLdrRWXIdentityAttribute(PageTableEntry::Permission_KernelRWX, PageTableEntry::PageAttribute_NormalMemory, PageTableEntry::Shareable_InnerShareable, PageTableEntry::MappingFlag_Mapped);
const uintptr_t kernel_ldr_base = util::AlignDown(reinterpret_cast<uintptr_t>(__start__), PageSize);
const uintptr_t kernel_ldr_size = util::AlignUp(reinterpret_cast<uintptr_t>(__end__), PageSize) - kernel_ldr_base;
const uintptr_t kernel_ldr_base = util::AlignDown(reinterpret_cast<uintptr_t>(__bin_start__), PageSize);
const uintptr_t kernel_ldr_size = util::AlignUp(reinterpret_cast<uintptr_t>(__bin_end__), PageSize) - kernel_ldr_base;
init_pt.Map(kernel_ldr_base, kernel_ldr_size, kernel_ldr_base, KernelRWXIdentityAttribute, allocator, 0);
/* Map in the page table region as RW- for ourselves. */

12
stratosphere/creport/source/creport_crash_report.cpp
View File

@ -26,6 +26,8 @@ namespace ams::creport {
static_assert(DyingMessageAddressOffset == AMS_OFFSETOF(ams::svc::aarch64::ProcessLocalRegion, dying_message_region_address));
static_assert(DyingMessageAddressOffset == AMS_OFFSETOF(ams::svc::aarch32::ProcessLocalRegion, dying_message_region_address));
constexpr size_t CrashReportDataCacheSize = 256_KB;
/* Helper functions. */
bool TryGetCurrentTimestamp(u64 *out) {
/* Clear output. */
@ -307,7 +309,15 @@ namespace ams::creport {
/* Save crash report. */
util::SNPrintf(file_path, sizeof(file_path), "sdmc:/atmosphere/crash_reports/%011lu_%016lx.log", timestamp, m_process_info.program_id);
{
ScopedFile file(file_path);
/* Try to allocate data cache. */
void * const data_cache = lmem::AllocateFromExpHeap(m_heap_handle, CrashReportDataCacheSize + os::MemoryPageSize);
ON_SCOPE_EXIT { if (data_cache != nullptr) { lmem::FreeToExpHeap(m_heap_handle, data_cache); } };
/* Align up the data cache. This is safe because null will align up to null. */
void * const aligned_cache = reinterpret_cast<void *>(util::AlignUp(reinterpret_cast<uintptr_t>(data_cache), os::MemoryPageSize));
/* Open and save the file using the cache. */
ScopedFile file(file_path, aligned_cache, aligned_cache != nullptr ? CrashReportDataCacheSize : 0);
if (file.IsOpen()) {
this->SaveToFile(file);
}

40
stratosphere/creport/source/creport_modules.cpp
View File

@ -46,7 +46,7 @@ namespace ams::creport {
}
void ModuleList::SaveToFile(ScopedFile &file) {
file.WriteFormat(" Number of Modules: %zu\n", m_num_modules);
file.WriteFormat(" Number of Modules: %02zu\n", m_num_modules);
for (size_t i = 0; i < m_num_modules; i++) {
const auto& module = m_modules[i];
file.WriteFormat(" Module %02zu:\n", i);
@ -282,56 +282,38 @@ namespace ams::creport {
return;
}
/* Read the first instruction of .text. */
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address, sizeof(temp_32)))) {
return;
}
/* We want to find the symbol table/.dynamic. */
uintptr_t dyn_address = 0;
uintptr_t sym_tab = 0;
uintptr_t str_tab = 0;
size_t num_sym = 0;
/* Detect module type. */
if (temp_32 == 0) {
/* Module is dynamically loaded by rtld. */
/* Locate .dyn using rocrt::ModuleHeader. */
{
/* Determine the ModuleHeader offset. */
u32 mod_offset;
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(mod_offset)), m_debug_handle, module.start_address + sizeof(u32), sizeof(u32)))) {
return;
}
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + mod_offset, sizeof(u32)))) {
/* Read the signature. */
constexpr u32 SignatureFieldOffset = AMS_OFFSETOF(rocrt::ModuleHeader, signature);
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + mod_offset + SignatureFieldOffset, sizeof(u32)))) {
return;
}
/* Check that the module signature is expected. */
if (temp_32 != rocrt::ModuleHeaderVersion) { /* MOD0 */
return;
}
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + mod_offset + sizeof(u32), sizeof(u32)))) {
/* Determine the dynamic offset. */
constexpr u32 DynamicFieldOffset = AMS_OFFSETOF(rocrt::ModuleHeader, dynamic_offset);
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + mod_offset + DynamicFieldOffset, sizeof(u32)))) {
return;
}
dyn_address = module.start_address + mod_offset + temp_32;
} else if (temp_32 == 0x14000002) {
/* Module embeds rtld. */
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + 0x5C, sizeof(u32)))) {
return;
}
if (temp_32 != 0x94000002) {
return;
}
if (R_FAILED(svc::ReadDebugProcessMemory(reinterpret_cast<uintptr_t>(std::addressof(temp_32)), m_debug_handle, module.start_address + 0x60, sizeof(u32)))) {
return;
}
dyn_address = module.start_address + 0x60 + temp_32;
} else {
/* Module has unknown format. */
return;
}

42
stratosphere/creport/source/creport_scoped_file.cpp
View File

@ -60,22 +60,24 @@ namespace ams::creport {
/* Print the line prefix. */
if (first) {
this->WriteFormat("%s", prefix);
this->Write(prefix, prefix_len);
first = false;
} else {
this->WriteFormat("%*s", prefix_len, "");
std::memset(g_format_buffer, ' ', prefix_len);
this->Write(g_format_buffer, prefix_len);
}
/* Dump up to 0x20 of hex memory. */
{
char hex[MaximumLineLength * 2 + 2] = {};
for (size_t i = 0; i < cur_size; i++) {
util::SNPrintf(hex + i * 2, 3, "%02X", data_u8[data_ofs++]);
hex[i * 2 + 0] = "0123456789ABCDEF"[data_u8[data_ofs] >> 4];
hex[i * 2 + 1] = "0123456789ABCDEF"[data_u8[data_ofs] & 0xF];
++data_ofs;
}
hex[cur_size * 2 + 0] = '\n';
hex[cur_size * 2 + 1] = '\x00';
this->WriteString(hex);
this->Write(hex, cur_size * 2 + 1);
}
/* Continue. */
@ -83,16 +85,40 @@ namespace ams::creport {
}
}
void ScopedFile::Write(const void *data, size_t size) {
/* If we're not open, we can't write. */
if (!this->IsOpen()) {
return;
}
/* Advance, if we write successfully. */
if (R_SUCCEEDED(fs::WriteFile(m_file, m_offset, data, size, fs::WriteOption::Flush))) {
m_offset += size;
/* If we have a cache, write to it. */
if (m_cache != nullptr) {
/* Write into the cache, if we can. */
if (m_cache_size - m_cache_offset >= size || R_SUCCEEDED(this->TryWriteCache())) {
std::memcpy(m_cache + m_cache_offset, data, size);
m_cache_offset += size;
}
} else {
/* Advance, if we write successfully. */
if (R_SUCCEEDED(fs::WriteFile(m_file, m_offset, data, size, fs::WriteOption::None))) {
m_offset += size;
}
}
}
Result ScopedFile::TryWriteCache() {
/* If there's no cached data, there's nothing to do. */
R_SUCCEED_IF(m_cache_offset == 0);
/* Try to write any cached data. */
R_TRY(fs::WriteFile(m_file, m_offset, m_cache, m_cache_offset, fs::WriteOption::None));
/* Update our extents. */
m_offset += m_cache_offset;
m_cache_offset = 0;
R_SUCCEED();
}
}

11
stratosphere/creport/source/creport_scoped_file.hpp
View File

@ -25,8 +25,11 @@ namespace ams::creport {
fs::FileHandle m_file;
s64 m_offset;
bool m_opened;
u8 *m_cache;
const size_t m_cache_size;
s64 m_cache_offset;
public:
ScopedFile(const char *path) : m_file(), m_offset(), m_opened(false) {
ScopedFile(const char *path, void *cache = nullptr, size_t cache_size = 0) : m_file(), m_offset(), m_opened(false), m_cache(static_cast<u8*>(cache)), m_cache_size(cache_size), m_cache_offset(0) {
if (R_SUCCEEDED(fs::CreateFile(path, 0))) {
m_opened = R_SUCCEEDED(fs::OpenFile(std::addressof(m_file), path, fs::OpenMode_Write | fs::OpenMode_AllowAppend));
}
@ -34,6 +37,10 @@ namespace ams::creport {
~ScopedFile() {
if (m_opened) {
if (m_cache != nullptr) {
this->TryWriteCache();
}
fs::FlushFile(m_file);
fs::CloseFile(m_file);
}
}
@ -47,6 +54,8 @@ namespace ams::creport {
void DumpMemory(const char *prefix, const void *data, size_t size);
void Write(const void *data, size_t size);
private:
Result TryWriteCache();
};
}