mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-11-22 18:53:28 +01:00
818 lines
18 KiB
C++
818 lines
18 KiB
C++
#include "stdafx.h"
|
|
#ifdef WITH_GDB_DEBUGGER
|
|
|
|
#include "GDBDebugServer.h"
|
|
#include "Log.h"
|
|
#include <algorithm>
|
|
#include "Emu/Memory/Memory.h"
|
|
#include "Emu/System.h"
|
|
#include "Emu/IdManager.h"
|
|
#include "Emu/CPU/CPUThread.h"
|
|
#include "Emu/Cell/PPUThread.h"
|
|
#include "Emu/Cell/RawSPUThread.h"
|
|
#include "Emu/Cell/SPUThread.h"
|
|
|
|
#ifndef _WIN32
|
|
#include"fcntl.h"
|
|
#endif
|
|
|
|
extern void ppu_set_breakpoint(u32 addr);
|
|
extern void ppu_remove_breakpoint(u32 addr);
|
|
|
|
logs::channel gdbDebugServer("gdbDebugServer");
|
|
|
|
int sock_init(void)
|
|
{
|
|
#ifdef _WIN32
|
|
WSADATA wsa_data;
|
|
return WSAStartup(MAKEWORD(1, 1), &wsa_data);
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int sock_quit(void)
|
|
{
|
|
#ifdef _WIN32
|
|
return WSACleanup();
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
int closesocket(socket_t s) {
|
|
return close(s);
|
|
}
|
|
const int SOCKET_ERROR = -1;
|
|
const socket_t INVALID_SOCKET = -1;
|
|
#define sscanf_s sscanf
|
|
#define HEX_U32 "x"
|
|
#define HEX_U64 "lx"
|
|
#else
|
|
#define HEX_U32 "lx"
|
|
#define HEX_U64 "llx"
|
|
#endif
|
|
|
|
bool check_errno_again() {
|
|
#ifdef _WIN32
|
|
int err = GetLastError();
|
|
return (err == WSAEWOULDBLOCK);
|
|
#else
|
|
int err = errno;
|
|
return (err == EAGAIN) || (err == EWOULDBLOCK);
|
|
#endif
|
|
}
|
|
|
|
std::string u32_to_hex(u32 i) {
|
|
return fmt::format("%" HEX_U32, i);
|
|
}
|
|
|
|
std::string u64_to_padded_hex(u64 value) {
|
|
return fmt::format("%.16" HEX_U64, value);
|
|
}
|
|
|
|
std::string u32_to_padded_hex(u32 value) {
|
|
return fmt::format("%.8" HEX_U32, value);
|
|
}
|
|
|
|
u8 hex_to_u8(std::string val) {
|
|
u8 result;
|
|
sscanf_s(val.c_str(), "%02hhX", &result);
|
|
return result;
|
|
}
|
|
|
|
u32 hex_to_u32(std::string val) {
|
|
u32 result;
|
|
sscanf_s(val.c_str(), "%" HEX_U32, &result);
|
|
return result;
|
|
}
|
|
|
|
u64 hex_to_u64(std::string val) {
|
|
u64 result;
|
|
sscanf_s(val.c_str(), "%" HEX_U64, &result);
|
|
return result;
|
|
}
|
|
|
|
void GDBDebugServer::start_server()
|
|
{
|
|
server_socket = socket(AF_INET, SOCK_STREAM, 0);
|
|
|
|
if (server_socket == INVALID_SOCKET) {
|
|
gdbDebugServer.error("Error creating server socket");
|
|
return;
|
|
}
|
|
|
|
#ifdef WIN32
|
|
{
|
|
int mode = 1;
|
|
ioctlsocket(server_socket, FIONBIO, (u_long FAR *)&mode);
|
|
}
|
|
#else
|
|
fcntl(server_socket, F_SETFL, fcntl(server_socket, F_GETFL) | O_NONBLOCK);
|
|
#endif
|
|
|
|
int err;
|
|
|
|
sockaddr_in server_saddr;
|
|
server_saddr.sin_family = AF_INET;
|
|
int port = g_cfg.misc.gdb_server_port;
|
|
server_saddr.sin_port = htons(port);
|
|
server_saddr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
|
|
err = bind(server_socket, (struct sockaddr *) &server_saddr, sizeof(server_saddr));
|
|
if (err == SOCKET_ERROR) {
|
|
gdbDebugServer.error("Error binding to port %d", port);
|
|
return;
|
|
}
|
|
|
|
err = listen(server_socket, 1);
|
|
if (err == SOCKET_ERROR) {
|
|
gdbDebugServer.error("Error listening on port %d", port);
|
|
return;
|
|
}
|
|
|
|
gdbDebugServer.success("GDB Debug Server listening on port %d", port);
|
|
}
|
|
|
|
int GDBDebugServer::read(void * buf, int cnt)
|
|
{
|
|
while (!stop) {
|
|
int result = recv(client_socket, reinterpret_cast<char*>(buf), cnt, 0);
|
|
|
|
if (result == SOCKET_ERROR) {
|
|
if (check_errno_again()) {
|
|
thread_ctrl::wait_for(50);
|
|
continue;
|
|
}
|
|
|
|
gdbDebugServer.error("Error during socket read");
|
|
fmt::throw_exception("Error during socket read" HERE);
|
|
}
|
|
return result;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
char GDBDebugServer::read_char()
|
|
{
|
|
char result;
|
|
int cnt = read(&result, 1);
|
|
if (!cnt) {
|
|
fmt::throw_exception("Tried to read char, but no data was available" HERE);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
u8 GDBDebugServer::read_hexbyte()
|
|
{
|
|
char buf[2];
|
|
read(buf, 2);
|
|
return static_cast<u8>(strtol(buf, nullptr, 16));
|
|
}
|
|
|
|
void GDBDebugServer::try_read_cmd(gdb_cmd & out_cmd)
|
|
{
|
|
char c = read_char();
|
|
//interrupt
|
|
if (UNLIKELY(c == 0x03)) {
|
|
out_cmd.cmd = "\0x03";
|
|
out_cmd.data = "";
|
|
out_cmd.checksum = 0;
|
|
return;
|
|
}
|
|
if (UNLIKELY(c != '$')) {
|
|
//gdb starts conversation with + for some reason
|
|
if (c == '+') {
|
|
c = read_char();
|
|
}
|
|
if (c != '$') {
|
|
fmt::throw_exception("Expected start of packet character '$', got '%c' instead" HERE, c);
|
|
}
|
|
}
|
|
//clear packet data
|
|
out_cmd.cmd = "";
|
|
out_cmd.data = "";
|
|
out_cmd.checksum = 0;
|
|
bool cmd_part = true;
|
|
u8 checksum = 0;
|
|
while(true) {
|
|
c = read_char();
|
|
if (c == '#') {
|
|
break;
|
|
}
|
|
checksum = (checksum + reinterpret_cast<u8&>(c)) % 256;
|
|
//escaped char
|
|
if (c == '}') {
|
|
c = read_char() ^ 0x20;
|
|
checksum = (checksum + reinterpret_cast<u8&>(c)) % 256;
|
|
}
|
|
//cmd-data splitters
|
|
if (cmd_part && ((c == ':') || (c == '.') || (c == ';'))) {
|
|
cmd_part = false;
|
|
}
|
|
if (cmd_part) {
|
|
out_cmd.cmd += c;
|
|
//only q and v commands can have multi-char command
|
|
if ((out_cmd.cmd.length() == 1) && (c != 'q') && (c != 'v')) {
|
|
cmd_part = false;
|
|
}
|
|
} else {
|
|
out_cmd.data += c;
|
|
}
|
|
}
|
|
out_cmd.checksum = read_hexbyte();
|
|
if (out_cmd.checksum != checksum) {
|
|
throw new wrong_checksum_exception("Wrong checksum for packet" HERE);
|
|
}
|
|
}
|
|
|
|
bool GDBDebugServer::read_cmd(gdb_cmd & out_cmd)
|
|
{
|
|
while (true) {
|
|
try {
|
|
try_read_cmd(out_cmd);
|
|
ack(true);
|
|
return true;
|
|
}
|
|
catch (wrong_checksum_exception) {
|
|
ack(false);
|
|
}
|
|
catch (std::runtime_error e) {
|
|
gdbDebugServer.error(e.what());
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDBDebugServer::send(const char * buf, int cnt)
|
|
{
|
|
gdbDebugServer.trace("Sending %s (%d bytes)", buf, cnt);
|
|
while (!stop) {
|
|
int res = ::send(client_socket, buf, cnt, 0);
|
|
if (res == SOCKET_ERROR) {
|
|
if (check_errno_again()) {
|
|
thread_ctrl::wait_for(50);
|
|
continue;
|
|
}
|
|
gdbDebugServer.error("Failed sending %d bytes", cnt);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
void GDBDebugServer::send_char(char c)
|
|
{
|
|
send(&c, 1);
|
|
}
|
|
|
|
void GDBDebugServer::ack(bool accepted)
|
|
{
|
|
send_char(accepted ? '+' : '-');
|
|
}
|
|
|
|
void GDBDebugServer::send_cmd(const std::string & cmd)
|
|
{
|
|
u8 checksum = 0;
|
|
std::string buf;
|
|
buf.reserve(cmd.length() + 4);
|
|
buf += "$";
|
|
for (int i = 0; i < cmd.length(); ++i) {
|
|
checksum = (checksum + append_encoded_char(cmd[i], buf)) % 256;
|
|
}
|
|
buf += "#";
|
|
buf += to_hexbyte(checksum);
|
|
send(buf.c_str(), static_cast<int>(buf.length()));
|
|
}
|
|
|
|
bool GDBDebugServer::send_cmd_ack(const std::string & cmd)
|
|
{
|
|
while (true) {
|
|
send_cmd(cmd);
|
|
char c = read_char();
|
|
if (LIKELY(c == '+')) {
|
|
return true;
|
|
}
|
|
if (UNLIKELY(c != '-')) {
|
|
gdbDebugServer.error("Wrong acknowledge character received %c", c);
|
|
return false;
|
|
}
|
|
gdbDebugServer.warning("Client rejected our cmd");
|
|
}
|
|
}
|
|
|
|
u8 GDBDebugServer::append_encoded_char(char c, std::string & str)
|
|
{
|
|
u8 checksum = 0;
|
|
if (UNLIKELY((c == '#') || (c == '$') || (c == '}'))) {
|
|
str += '}';
|
|
c ^= 0x20;
|
|
checksum = '}';
|
|
}
|
|
checksum = (checksum + reinterpret_cast<u8&>(c)) % 256;
|
|
str += c;
|
|
return checksum;
|
|
}
|
|
|
|
std::string GDBDebugServer::to_hexbyte(u8 i)
|
|
{
|
|
std::string result = "00";
|
|
u8 i1 = i & 0xF;
|
|
u8 i2 = i >> 4;
|
|
result[0] = i2 > 9 ? 'a' + i2 - 10 : '0' + i2;
|
|
result[1] = i1 > 9 ? 'a' + i1 - 10 : '0' + i1;
|
|
return result;
|
|
}
|
|
|
|
bool GDBDebugServer::select_thread(u64 id)
|
|
{
|
|
//in case we have none at all
|
|
selected_thread.reset();
|
|
const auto on_select = [&](u32, cpu_thread& cpu)
|
|
{
|
|
return (id == ALL_THREADS) || (id == ANY_THREAD) || (cpu.id == id);
|
|
};
|
|
if (auto ppu = idm::select<ppu_thread>(on_select)) {
|
|
selected_thread = ppu.ptr;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::string GDBDebugServer::get_reg(std::shared_ptr<ppu_thread> thread, u32 rid)
|
|
{
|
|
std::string result;
|
|
//ids from gdb/features/rs6000/powerpc-64.c
|
|
//pc
|
|
switch (rid) {
|
|
case 64:
|
|
return u64_to_padded_hex(thread->cia);
|
|
//msr?
|
|
case 65:
|
|
return std::string(16, 'x');
|
|
case 66:
|
|
return u32_to_padded_hex(thread->cr_pack());
|
|
case 67:
|
|
return u64_to_padded_hex(thread->lr);
|
|
case 68:
|
|
return u64_to_padded_hex(thread->ctr);
|
|
//xer
|
|
case 69:
|
|
return std::string(8, 'x');
|
|
//fpscr
|
|
case 70:
|
|
return std::string(8, 'x');
|
|
default:
|
|
if (rid > 70) return "";
|
|
return (rid > 31)
|
|
? u64_to_padded_hex(reinterpret_cast<u64&>(thread->fpr[rid - 32])) //fpr
|
|
: u64_to_padded_hex(thread->gpr[rid]); //gpr
|
|
}
|
|
}
|
|
|
|
bool GDBDebugServer::set_reg(std::shared_ptr<ppu_thread> thread, u32 rid, std::string value)
|
|
{
|
|
switch (rid) {
|
|
case 64:
|
|
thread->cia = static_cast<u32>(hex_to_u64(value));
|
|
return true;
|
|
//msr?
|
|
case 65:
|
|
return true;
|
|
case 66:
|
|
thread->cr_unpack(hex_to_u32(value));
|
|
return true;
|
|
case 67:
|
|
thread->lr = hex_to_u64(value);
|
|
return true;
|
|
case 68:
|
|
thread->ctr = hex_to_u64(value);
|
|
return true;
|
|
//xer
|
|
case 69:
|
|
return true;
|
|
//fpscr
|
|
case 70:
|
|
return true;
|
|
default:
|
|
if (rid > 70) return false;
|
|
if (rid > 31) {
|
|
u64 val = hex_to_u64(value);
|
|
thread->fpr[rid - 32] = reinterpret_cast<f64&>(val);
|
|
} else {
|
|
thread->gpr[rid] = hex_to_u64(value);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
u32 GDBDebugServer::get_reg_size(std::shared_ptr<ppu_thread> thread, u32 rid)
|
|
{
|
|
switch (rid) {
|
|
case 66:
|
|
case 69:
|
|
case 70:
|
|
return 4;
|
|
default:
|
|
if (rid > 70) {
|
|
return 0;
|
|
}
|
|
return 8;
|
|
}
|
|
}
|
|
|
|
bool GDBDebugServer::send_reason()
|
|
{
|
|
return send_cmd_ack("S05");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_extended_mode(gdb_cmd & cmd)
|
|
{
|
|
return send_cmd_ack("OK");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_reason(gdb_cmd & cmd)
|
|
{
|
|
return send_reason();
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_supported(gdb_cmd & cmd)
|
|
{
|
|
return send_cmd_ack("PacketSize=1200");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_thread_info(gdb_cmd & cmd)
|
|
{
|
|
std::string result = "";
|
|
const auto on_select = [&](u32, cpu_thread& cpu)
|
|
{
|
|
if (result.length()) {
|
|
result += ",";
|
|
}
|
|
result += u64_to_padded_hex(static_cast<u64>(cpu.id));
|
|
};
|
|
idm::select<ppu_thread>(on_select);
|
|
idm::select<ARMv7Thread>(on_select);
|
|
idm::select<RawSPUThread>(on_select);
|
|
idm::select<SPUThread>(on_select);
|
|
|
|
//todo: this may exceed max command length
|
|
result = "m" + result + "l";
|
|
|
|
return send_cmd_ack(result);;
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_current_thread(gdb_cmd & cmd)
|
|
{
|
|
return send_cmd_ack(selected_thread.expired() ? "" : u64_to_padded_hex(selected_thread.lock()->id));
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_read_register(gdb_cmd & cmd)
|
|
{
|
|
select_thread(general_ops_thread_id);
|
|
auto th = selected_thread.lock();
|
|
if (th->id_type() == 1) {
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(th);
|
|
u32 rid = hex_to_u32(cmd.data);
|
|
std::string result = get_reg(ppu, rid);
|
|
if (!result.length()) {
|
|
gdbDebugServer.warning("Wrong register id %d", rid);
|
|
return send_cmd_ack("E01");
|
|
}
|
|
return send_cmd_ack(result);
|
|
}
|
|
gdbDebugServer.warning("Unimplemented thread type %d", th->id_type());
|
|
return send_cmd_ack("");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_write_register(gdb_cmd & cmd)
|
|
{
|
|
select_thread(general_ops_thread_id);
|
|
auto th = selected_thread.lock();
|
|
if (th->id_type() == 1) {
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(th);
|
|
size_t eq_pos = cmd.data.find('=');
|
|
if (eq_pos == std::string::npos) {
|
|
gdbDebugServer.warning("Wrong write_register cmd data %s", cmd.data.c_str());
|
|
return send_cmd_ack("E02");
|
|
}
|
|
u32 rid = hex_to_u32(cmd.data.substr(0, eq_pos));
|
|
std::string value = cmd.data.substr(eq_pos + 1);
|
|
if (!set_reg(ppu, rid, value)) {
|
|
gdbDebugServer.warning("Wrong register id %d", rid);
|
|
return send_cmd_ack("E01");
|
|
}
|
|
return send_cmd_ack("OK");
|
|
}
|
|
gdbDebugServer.warning("Unimplemented thread type %d", th->id_type());
|
|
return send_cmd_ack("");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_read_memory(gdb_cmd & cmd)
|
|
{
|
|
size_t s = cmd.data.find(',');
|
|
u32 addr = hex_to_u32(cmd.data.substr(0, s));
|
|
u32 len = hex_to_u32(cmd.data.substr(s + 1));
|
|
std::string result;
|
|
result.reserve(len * 2);
|
|
for (u32 i = 0; i < len; ++i) {
|
|
if (vm::check_addr(addr + i)) {
|
|
result += to_hexbyte(vm::read8(addr + i));
|
|
} else {
|
|
break;
|
|
//result += "xx";
|
|
}
|
|
}
|
|
if (len && !result.length()) {
|
|
//nothing read
|
|
return send_cmd_ack("E01");
|
|
}
|
|
return send_cmd_ack(result);
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_write_memory(gdb_cmd & cmd)
|
|
{
|
|
size_t s = cmd.data.find(',');
|
|
size_t s2 = cmd.data.find(':');
|
|
if ((s == std::string::npos) || (s2 == std::string::npos)) {
|
|
gdbDebugServer.warning("Malformed write memory request received: %s", cmd.data.c_str());
|
|
return send_cmd_ack("E01");
|
|
}
|
|
u32 addr = hex_to_u32(cmd.data.substr(0, s));
|
|
u32 len = hex_to_u32(cmd.data.substr(s + 1, s2 - s - 1));
|
|
const char* data_ptr = (cmd.data.c_str()) + s2 + 1;
|
|
for (u32 i = 0; i < len; ++i) {
|
|
if (vm::check_addr(addr + i)) {
|
|
u8 val;
|
|
int res = sscanf_s(data_ptr, "%02hhX", &val);
|
|
if (!res) {
|
|
gdbDebugServer.warning("Couldn't read u8 from string %s", data_ptr);
|
|
return send_cmd_ack("E02");
|
|
}
|
|
data_ptr += 2;
|
|
vm::write8(addr + i, val);
|
|
} else {
|
|
return send_cmd_ack("E03");
|
|
}
|
|
}
|
|
return send_cmd_ack("OK");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_read_all_registers(gdb_cmd & cmd)
|
|
{
|
|
std::string result;
|
|
select_thread(general_ops_thread_id);
|
|
|
|
auto th = selected_thread.lock();
|
|
if (th->id_type() == 1) {
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(th);
|
|
//68 64-bit registers, and 3 32-bit
|
|
result.reserve(68*16 + 3*8);
|
|
for (int i = 0; i < 71; ++i) {
|
|
result += get_reg(ppu, i);
|
|
}
|
|
return send_cmd_ack(result);
|
|
}
|
|
gdbDebugServer.warning("Unimplemented thread type %d", th->id_type());
|
|
return send_cmd_ack("");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_write_all_registers(gdb_cmd & cmd)
|
|
{
|
|
select_thread(general_ops_thread_id);
|
|
auto th = selected_thread.lock();
|
|
if (th->id_type() == 1) {
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(th);
|
|
int ptr = 0;
|
|
for (int i = 0; i < 71; ++i) {
|
|
int sz = get_reg_size(ppu, i);
|
|
set_reg(ppu, i, cmd.data.substr(ptr, sz * 2));
|
|
ptr += sz * 2;
|
|
}
|
|
return send_cmd_ack("OK");
|
|
}
|
|
gdbDebugServer.warning("Unimplemented thread type %d", th->id_type());
|
|
return send_cmd_ack("E01");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_set_thread_ops(gdb_cmd & cmd)
|
|
{
|
|
char type = cmd.data[0];
|
|
std::string thread = cmd.data.substr(1);
|
|
u64 id = thread == "-1" ? ALL_THREADS : hex_to_u64(thread);
|
|
if (type == 'c') {
|
|
continue_ops_thread_id = id;
|
|
} else {
|
|
general_ops_thread_id = id;
|
|
}
|
|
if (select_thread(id)) {
|
|
return send_cmd_ack("OK");
|
|
}
|
|
gdbDebugServer.warning("Client asked to use thread %llx for %s, but no matching thread was found", id, type == 'c' ? "continue ops" : "general ops");
|
|
return send_cmd_ack("E01");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_attached_to_what(gdb_cmd & cmd)
|
|
{
|
|
//creating processes from client is not available yet
|
|
return send_cmd_ack("1");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_kill(gdb_cmd & cmd)
|
|
{
|
|
Emu.Stop();
|
|
return true;
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_continue_support(gdb_cmd & cmd)
|
|
{
|
|
return send_cmd_ack("vCont;c;s;C;S");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_vcont(gdb_cmd & cmd)
|
|
{
|
|
//todo: handle multiple actions and thread ids
|
|
this->from_breakpoint = false;
|
|
if (cmd.data[1] == 'c') {
|
|
select_thread(continue_ops_thread_id);
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(selected_thread.lock());
|
|
ppu->state -= cpu_flag::dbg_pause;
|
|
if (Emu.IsPaused()) {
|
|
Emu.Resume();
|
|
}
|
|
thread_ctrl::wait();
|
|
//we are in all-stop mode
|
|
Emu.Pause();
|
|
return send_reason();
|
|
} else if (cmd.data[1] == 's') {
|
|
select_thread(continue_ops_thread_id);
|
|
auto ppu = std::static_pointer_cast<ppu_thread>(selected_thread.lock());
|
|
ppu->state += cpu_flag::dbg_step;
|
|
ppu->state -= cpu_flag::dbg_pause;
|
|
if (Emu.IsPaused()) {
|
|
Emu.Resume();
|
|
} else {
|
|
ppu->notify();
|
|
}
|
|
thread_ctrl::wait();
|
|
//we are in all-stop mode
|
|
Emu.Pause();
|
|
return send_reason();
|
|
}
|
|
return send_cmd_ack("");
|
|
}
|
|
|
|
static const u32 INVALID_PTR = 0xffffffff;
|
|
|
|
bool GDBDebugServer::cmd_set_breakpoint(gdb_cmd & cmd)
|
|
{
|
|
char type = cmd.data[0];
|
|
//software breakpoint
|
|
if (type == '0') {
|
|
u32 addr = INVALID_PTR;
|
|
if (cmd.data.find(';') != std::string::npos) {
|
|
gdbDebugServer.warning("Received request to set breakpoint with condition, but they are not supported");
|
|
return send_cmd_ack("E01");
|
|
}
|
|
sscanf_s(cmd.data.c_str(), "0,%x", &addr);
|
|
if (addr == INVALID_PTR) {
|
|
gdbDebugServer.warning("Can't parse breakpoint request, data: %s", cmd.data.c_str());
|
|
return send_cmd_ack("E02");
|
|
}
|
|
ppu_set_breakpoint(addr);
|
|
return send_cmd_ack("OK");
|
|
}
|
|
//other breakpoint types are not supported
|
|
return send_cmd_ack("");
|
|
}
|
|
|
|
bool GDBDebugServer::cmd_remove_breakpoint(gdb_cmd & cmd)
|
|
{
|
|
char type = cmd.data[0];
|
|
//software breakpoint
|
|
if (type == '0') {
|
|
u32 addr = INVALID_PTR;
|
|
sscanf_s(cmd.data.c_str(), "0,%x", &addr);
|
|
if (addr == INVALID_PTR) {
|
|
gdbDebugServer.warning("Can't parse breakpoint remove request, data: %s", cmd.data.c_str());
|
|
return send_cmd_ack("E01");
|
|
}
|
|
ppu_remove_breakpoint(addr);
|
|
return send_cmd_ack("OK");
|
|
}
|
|
//other breakpoint types are not supported
|
|
return send_cmd_ack("");
|
|
|
|
}
|
|
|
|
#define PROCESS_CMD(cmds,handler) if (cmd.cmd == cmds) { if (!handler(cmd)) break; else continue; }
|
|
|
|
void GDBDebugServer::on_task()
|
|
{
|
|
sock_init();
|
|
|
|
start_server();
|
|
|
|
while (!stop) {
|
|
sockaddr_in client;
|
|
socklen_t client_len = sizeof(client);
|
|
client_socket = accept(server_socket, (struct sockaddr *) &client, &client_len);
|
|
|
|
if (client_socket == INVALID_SOCKET) {
|
|
if (check_errno_again()) {
|
|
thread_ctrl::wait_for(50);
|
|
continue;
|
|
}
|
|
|
|
gdbDebugServer.error("Could not establish new connection\n");
|
|
return;
|
|
}
|
|
//stop immediately
|
|
Emu.Pause();
|
|
|
|
try {
|
|
char hostbuf[32];
|
|
inet_ntop(client.sin_family, reinterpret_cast<void*>(&client.sin_addr), hostbuf, 32);
|
|
gdbDebugServer.success("Got connection to GDB debug server from %s:%d", hostbuf, client.sin_port);
|
|
|
|
gdb_cmd cmd;
|
|
|
|
while (!stop) {
|
|
if (!read_cmd(cmd)) {
|
|
break;
|
|
}
|
|
gdbDebugServer.trace("Command %s with data %s received", cmd.cmd.c_str(), cmd.data.c_str());
|
|
PROCESS_CMD("!", cmd_extended_mode);
|
|
PROCESS_CMD("?", cmd_reason);
|
|
PROCESS_CMD("qSupported", cmd_supported);
|
|
PROCESS_CMD("qfThreadInfo", cmd_thread_info);
|
|
PROCESS_CMD("qC", cmd_current_thread);
|
|
PROCESS_CMD("p", cmd_read_register);
|
|
PROCESS_CMD("P", cmd_write_register);
|
|
PROCESS_CMD("m", cmd_read_memory);
|
|
PROCESS_CMD("M", cmd_write_memory);
|
|
PROCESS_CMD("g", cmd_read_all_registers);
|
|
PROCESS_CMD("G", cmd_write_all_registers);
|
|
PROCESS_CMD("H", cmd_set_thread_ops);
|
|
PROCESS_CMD("qAttached", cmd_attached_to_what);
|
|
PROCESS_CMD("k", cmd_kill);
|
|
PROCESS_CMD("vCont?", cmd_continue_support);
|
|
PROCESS_CMD("vCont", cmd_vcont);
|
|
PROCESS_CMD("z", cmd_remove_breakpoint);
|
|
PROCESS_CMD("Z", cmd_set_breakpoint);
|
|
|
|
gdbDebugServer.trace("Unsupported command received %s", cmd.cmd.c_str());
|
|
if (!send_cmd_ack("")) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
catch (std::runtime_error& e)
|
|
{
|
|
if (client_socket) {
|
|
closesocket(client_socket);
|
|
client_socket = 0;
|
|
}
|
|
gdbDebugServer.error(e.what());
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef PROCESS_CMD
|
|
|
|
void GDBDebugServer::on_exit()
|
|
{
|
|
if (server_socket) {
|
|
closesocket(server_socket);
|
|
}
|
|
if (client_socket) {
|
|
closesocket(client_socket);
|
|
}
|
|
sock_quit();
|
|
}
|
|
|
|
std::string GDBDebugServer::get_name() const
|
|
{
|
|
return "GDBDebugger";
|
|
}
|
|
|
|
void GDBDebugServer::on_stop()
|
|
{
|
|
this->stop = true;
|
|
//just in case we are waiting for breakpoint
|
|
this->notify();
|
|
named_thread::on_stop();
|
|
}
|
|
|
|
u32 g_gdb_debugger_id = 0;
|
|
|
|
#ifndef _WIN32
|
|
#undef sscanf_s
|
|
#endif
|
|
|
|
#undef HEX_U32
|
|
#undef HEX_U64
|
|
|
|
#endif
|