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Diffstat (limited to 'src/core/debugger/gdbstub.cpp')
-rw-r--r--src/core/debugger/gdbstub.cpp243
1 files changed, 11 insertions, 232 deletions
diff --git a/src/core/debugger/gdbstub.cpp b/src/core/debugger/gdbstub.cpp
index 148dd3e39..66e46c4ba 100644
--- a/src/core/debugger/gdbstub.cpp
+++ b/src/core/debugger/gdbstub.cpp
@@ -16,6 +16,7 @@
#include "common/settings.h"
#include "common/string_util.h"
#include "core/arm/arm_interface.h"
+#include "core/arm/debug.h"
#include "core/core.h"
#include "core/debugger/gdbstub.h"
#include "core/debugger/gdbstub_arch.h"
@@ -310,7 +311,7 @@ void GDBStub::ExecuteCommand(std::string_view packet, std::vector<DebuggerAction
const auto mem{Common::HexStringToVector(mem_substr, false)};
if (system.ApplicationMemory().WriteBlock(addr, mem.data(), size)) {
- system.InvalidateCpuInstructionCacheRange(addr, size);
+ Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, size);
SendReply(GDB_STUB_REPLY_OK);
} else {
SendReply(GDB_STUB_REPLY_ERR);
@@ -363,7 +364,7 @@ void GDBStub::HandleBreakpointInsert(std::string_view command) {
case BreakpointType::Software:
replaced_instructions[addr] = system.ApplicationMemory().Read32(addr);
system.ApplicationMemory().Write32(addr, arch->BreakpointInstruction());
- system.InvalidateCpuInstructionCacheRange(addr, sizeof(u32));
+ Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, sizeof(u32));
success = true;
break;
case BreakpointType::WriteWatch:
@@ -411,7 +412,7 @@ void GDBStub::HandleBreakpointRemove(std::string_view command) {
const auto orig_insn{replaced_instructions.find(addr)};
if (orig_insn != replaced_instructions.end()) {
system.ApplicationMemory().Write32(addr, orig_insn->second);
- system.InvalidateCpuInstructionCacheRange(addr, sizeof(u32));
+ Core::InvalidateInstructionCacheRange(system.ApplicationProcess(), addr, sizeof(u32));
replaced_instructions.erase(addr);
success = true;
}
@@ -442,114 +443,6 @@ void GDBStub::HandleBreakpointRemove(std::string_view command) {
}
}
-// Structure offsets are from Atmosphere
-// See osdbg_thread_local_region.os.horizon.hpp and osdbg_thread_type.os.horizon.hpp
-
-static std::optional<std::string> GetNameFromThreadType32(Core::Memory::Memory& memory,
- const Kernel::KThread& thread) {
- // Read thread type from TLS
- const VAddr tls_thread_type{memory.Read32(thread.GetTlsAddress() + 0x1fc)};
- const VAddr argument_thread_type{thread.GetArgument()};
-
- if (argument_thread_type && tls_thread_type != argument_thread_type) {
- // Probably not created by nnsdk, no name available.
- return std::nullopt;
- }
-
- if (!tls_thread_type) {
- return std::nullopt;
- }
-
- const u16 version{memory.Read16(tls_thread_type + 0x26)};
- VAddr name_pointer{};
- if (version == 1) {
- name_pointer = memory.Read32(tls_thread_type + 0xe4);
- } else {
- name_pointer = memory.Read32(tls_thread_type + 0xe8);
- }
-
- if (!name_pointer) {
- // No name provided.
- return std::nullopt;
- }
-
- return memory.ReadCString(name_pointer, 256);
-}
-
-static std::optional<std::string> GetNameFromThreadType64(Core::Memory::Memory& memory,
- const Kernel::KThread& thread) {
- // Read thread type from TLS
- const VAddr tls_thread_type{memory.Read64(thread.GetTlsAddress() + 0x1f8)};
- const VAddr argument_thread_type{thread.GetArgument()};
-
- if (argument_thread_type && tls_thread_type != argument_thread_type) {
- // Probably not created by nnsdk, no name available.
- return std::nullopt;
- }
-
- if (!tls_thread_type) {
- return std::nullopt;
- }
-
- const u16 version{memory.Read16(tls_thread_type + 0x46)};
- VAddr name_pointer{};
- if (version == 1) {
- name_pointer = memory.Read64(tls_thread_type + 0x1a0);
- } else {
- name_pointer = memory.Read64(tls_thread_type + 0x1a8);
- }
-
- if (!name_pointer) {
- // No name provided.
- return std::nullopt;
- }
-
- return memory.ReadCString(name_pointer, 256);
-}
-
-static std::optional<std::string> GetThreadName(Core::System& system,
- const Kernel::KThread& thread) {
- if (system.ApplicationProcess()->Is64Bit()) {
- return GetNameFromThreadType64(system.ApplicationMemory(), thread);
- } else {
- return GetNameFromThreadType32(system.ApplicationMemory(), thread);
- }
-}
-
-static std::string_view GetThreadWaitReason(const Kernel::KThread& thread) {
- switch (thread.GetWaitReasonForDebugging()) {
- case Kernel::ThreadWaitReasonForDebugging::Sleep:
- return "Sleep";
- case Kernel::ThreadWaitReasonForDebugging::IPC:
- return "IPC";
- case Kernel::ThreadWaitReasonForDebugging::Synchronization:
- return "Synchronization";
- case Kernel::ThreadWaitReasonForDebugging::ConditionVar:
- return "ConditionVar";
- case Kernel::ThreadWaitReasonForDebugging::Arbitration:
- return "Arbitration";
- case Kernel::ThreadWaitReasonForDebugging::Suspended:
- return "Suspended";
- default:
- return "Unknown";
- }
-}
-
-static std::string GetThreadState(const Kernel::KThread& thread) {
- switch (thread.GetState()) {
- case Kernel::ThreadState::Initialized:
- return "Initialized";
- case Kernel::ThreadState::Waiting:
- return fmt::format("Waiting ({})", GetThreadWaitReason(thread));
- case Kernel::ThreadState::Runnable:
- return "Runnable";
- case Kernel::ThreadState::Terminated:
- return "Terminated";
- default:
- return "Unknown";
- }
-}
-
static std::string PaginateBuffer(std::string_view buffer, std::string_view request) {
const auto amount{request.substr(request.find(',') + 1)};
const auto offset_val{static_cast<u64>(strtoll(request.data(), nullptr, 16))};
@@ -562,120 +455,6 @@ static std::string PaginateBuffer(std::string_view buffer, std::string_view requ
}
}
-static VAddr GetModuleEnd(Kernel::KProcessPageTable& page_table, VAddr base) {
- Kernel::KMemoryInfo mem_info;
- Kernel::Svc::MemoryInfo svc_mem_info;
- Kernel::Svc::PageInfo page_info;
- VAddr cur_addr{base};
-
- // Expect: r-x Code (.text)
- R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
- svc_mem_info = mem_info.GetSvcMemoryInfo();
- cur_addr = svc_mem_info.base_address + svc_mem_info.size;
- if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
- svc_mem_info.permission != Kernel::Svc::MemoryPermission::ReadExecute) {
- return cur_addr - 1;
- }
-
- // Expect: r-- Code (.rodata)
- R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
- svc_mem_info = mem_info.GetSvcMemoryInfo();
- cur_addr = svc_mem_info.base_address + svc_mem_info.size;
- if (svc_mem_info.state != Kernel::Svc::MemoryState::Code ||
- svc_mem_info.permission != Kernel::Svc::MemoryPermission::Read) {
- return cur_addr - 1;
- }
-
- // Expect: rw- CodeData (.data)
- R_ASSERT(page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
- svc_mem_info = mem_info.GetSvcMemoryInfo();
- cur_addr = svc_mem_info.base_address + svc_mem_info.size;
- return cur_addr - 1;
-}
-
-static Loader::AppLoader::Modules FindModules(Core::System& system) {
- Loader::AppLoader::Modules modules;
-
- auto& page_table = system.ApplicationProcess()->GetPageTable();
- auto& memory = system.ApplicationMemory();
- VAddr cur_addr = 0;
-
- // Look for executable sections in Code or AliasCode regions.
- while (true) {
- Kernel::KMemoryInfo mem_info{};
- Kernel::Svc::PageInfo page_info{};
- R_ASSERT(
- page_table.QueryInfo(std::addressof(mem_info), std::addressof(page_info), cur_addr));
- auto svc_mem_info = mem_info.GetSvcMemoryInfo();
-
- if (svc_mem_info.permission == Kernel::Svc::MemoryPermission::ReadExecute &&
- (svc_mem_info.state == Kernel::Svc::MemoryState::Code ||
- svc_mem_info.state == Kernel::Svc::MemoryState::AliasCode)) {
- // Try to read the module name from its path.
- constexpr s32 PathLengthMax = 0x200;
- struct {
- u32 zero;
- s32 path_length;
- std::array<char, PathLengthMax> path;
- } module_path;
-
- if (memory.ReadBlock(svc_mem_info.base_address + svc_mem_info.size, &module_path,
- sizeof(module_path))) {
- if (module_path.zero == 0 && module_path.path_length > 0) {
- // Truncate module name.
- module_path.path[PathLengthMax - 1] = '\0';
-
- // Ignore leading directories.
- char* path_pointer = module_path.path.data();
-
- for (s32 i = 0; i < std::min(PathLengthMax, module_path.path_length) &&
- module_path.path[i] != '\0';
- i++) {
- if (module_path.path[i] == '/' || module_path.path[i] == '\\') {
- path_pointer = module_path.path.data() + i + 1;
- }
- }
-
- // Insert output.
- modules.emplace(svc_mem_info.base_address, path_pointer);
- }
- }
- }
-
- // Check if we're done.
- const uintptr_t next_address = svc_mem_info.base_address + svc_mem_info.size;
- if (next_address <= cur_addr) {
- break;
- }
-
- cur_addr = next_address;
- }
-
- return modules;
-}
-
-static VAddr FindMainModuleEntrypoint(Core::System& system) {
- Loader::AppLoader::Modules modules;
- system.GetAppLoader().ReadNSOModules(modules);
-
- // Do we have a module named main?
- const auto main = std::find_if(modules.begin(), modules.end(),
- [](const auto& key) { return key.second == "main"; });
-
- if (main != modules.end()) {
- return main->first;
- }
-
- // Do we have any loaded executable sections?
- modules = FindModules(system);
- if (!modules.empty()) {
- return modules.begin()->first;
- }
-
- // As a last resort, use the start of the code region.
- return GetInteger(system.ApplicationProcess()->GetPageTable().GetCodeRegionStart());
-}
-
void GDBStub::HandleQuery(std::string_view command) {
if (command.starts_with("TStatus")) {
// no tracepoint support
@@ -687,10 +466,10 @@ void GDBStub::HandleQuery(std::string_view command) {
const auto target_xml{arch->GetTargetXML()};
SendReply(PaginateBuffer(target_xml, command.substr(30)));
} else if (command.starts_with("Offsets")) {
- const auto main_offset = FindMainModuleEntrypoint(system);
- SendReply(fmt::format("TextSeg={:x}", main_offset));
+ const auto main_offset = Core::FindMainModuleEntrypoint(system.ApplicationProcess());
+ SendReply(fmt::format("TextSeg={:x}", GetInteger(main_offset)));
} else if (command.starts_with("Xfer:libraries:read::")) {
- auto modules = FindModules(system);
+ auto modules = Core::FindModules(system.ApplicationProcess());
std::string buffer;
buffer += R"(<?xml version="1.0"?>)";
@@ -720,14 +499,14 @@ void GDBStub::HandleQuery(std::string_view command) {
const auto& threads = system.ApplicationProcess()->GetThreadList();
for (const auto& thread : threads) {
- auto thread_name{GetThreadName(system, thread)};
+ auto thread_name{Core::GetThreadName(&thread)};
if (!thread_name) {
thread_name = fmt::format("Thread {:d}", thread.GetThreadId());
}
buffer += fmt::format(R"(<thread id="{:x}" core="{:d}" name="{}">{}</thread>)",
thread.GetThreadId(), thread.GetActiveCore(),
- EscapeXML(*thread_name), GetThreadState(thread));
+ EscapeXML(*thread_name), GetThreadState(&thread));
}
buffer += "</threads>";
@@ -856,7 +635,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
reply = "Fastmem is not enabled.\n";
}
} else if (command_str == "get info") {
- auto modules = FindModules(system);
+ auto modules = Core::FindModules(process);
reply = fmt::format("Process: {:#x} ({})\n"
"Program Id: {:#018x}\n",
@@ -880,7 +659,7 @@ void GDBStub::HandleRcmd(const std::vector<u8>& command) {
for (const auto& [vaddr, name] : modules) {
reply += fmt::format(" {:#012x} - {:#012x} {}\n", vaddr,
- GetModuleEnd(page_table, vaddr), name);
+ GetInteger(Core::GetModuleEnd(process, vaddr)), name);
}
} else if (command_str == "get mappings") {
reply = "Mappings:\n";
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 17:57:12 +0100