Merge pull request #1644 from polaris-/gdb-fixes
Adopted WinterMute's gdbstub changes
This commit is contained in:
bunnei
commit
a4c5d8fd50
|
|
@ -36,25 +36,43 @@
|
|||
|
||||
static void PrintHelp()
|
||||
{
|
||||
std::cout << "Usage: citra <filename>" << std::endl;
|
||||
std::cout << "Usage: citra [options] <filename>" << std::endl;
|
||||
std::cout << "--help, -h Display this information" << std::endl;
|
||||
std::cout << "--gdbport, -g number Enable gdb stub on port number" << std::endl;
|
||||
}
|
||||
|
||||
/// Application entry point
|
||||
int main(int argc, char **argv) {
|
||||
Config config;
|
||||
int option_index = 0;
|
||||
bool use_gdbstub = Settings::values.use_gdbstub;
|
||||
u32 gdb_port = static_cast<u32>(Settings::values.gdbstub_port);
|
||||
char *endarg;
|
||||
std::string boot_filename;
|
||||
|
||||
static struct option long_options[] = {
|
||||
{ "help", no_argument, 0, 'h' },
|
||||
{ "gdbport", required_argument, 0, 'g' },
|
||||
{ 0, 0, 0, 0 }
|
||||
};
|
||||
|
||||
while (optind < argc) {
|
||||
char arg = getopt_long(argc, argv, ":h", long_options, &option_index);
|
||||
char arg = getopt_long(argc, argv, ":hg:", long_options, &option_index);
|
||||
if (arg != -1) {
|
||||
switch (arg) {
|
||||
case 'h':
|
||||
PrintHelp();
|
||||
return 0;
|
||||
case 'g':
|
||||
errno = 0;
|
||||
gdb_port = strtoul(optarg, &endarg, 0);
|
||||
use_gdbstub = true;
|
||||
if (endarg == optarg) errno = EINVAL;
|
||||
if (errno != 0) {
|
||||
perror("--gdbport");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
boot_filename = argv[optind];
|
||||
|
|
@ -73,11 +91,10 @@ int main(int argc, char **argv) {
|
|||
return -1;
|
||||
}
|
||||
|
||||
Config config;
|
||||
log_filter.ParseFilterString(Settings::values.log_filter);
|
||||
|
||||
GDBStub::ToggleServer(Settings::values.use_gdbstub);
|
||||
GDBStub::SetServerPort(static_cast<u32>(Settings::values.gdbstub_port));
|
||||
GDBStub::ToggleServer(use_gdbstub);
|
||||
GDBStub::SetServerPort(gdb_port);
|
||||
|
||||
std::unique_ptr<EmuWindow_SDL2> emu_window = std::make_unique<EmuWindow_SDL2>();
|
||||
|
||||
|
|
|
|||
|
|
@ -60,6 +60,59 @@ const u32 R15_REGISTER = 15;
|
|||
const u32 CPSR_REGISTER = 25;
|
||||
const u32 FPSCR_REGISTER = 58;
|
||||
|
||||
// For sample XML files see the GDB source /gdb/features
|
||||
// GDB also wants the l character at the start
|
||||
// This XML defines what the registers are for this specific ARM device
|
||||
static const char* target_xml =
|
||||
R"(l<?xml version="1.0"?>
|
||||
<!DOCTYPE target SYSTEM "gdb-target.dtd">
|
||||
<target version="1.0">
|
||||
<feature name="org.gnu.gdb.arm.core">
|
||||
<reg name="r0" bitsize="32"/>
|
||||
<reg name="r1" bitsize="32"/>
|
||||
<reg name="r2" bitsize="32"/>
|
||||
<reg name="r3" bitsize="32"/>
|
||||
<reg name="r4" bitsize="32"/>
|
||||
<reg name="r5" bitsize="32"/>
|
||||
<reg name="r6" bitsize="32"/>
|
||||
<reg name="r7" bitsize="32"/>
|
||||
<reg name="r8" bitsize="32"/>
|
||||
<reg name="r9" bitsize="32"/>
|
||||
<reg name="r10" bitsize="32"/>
|
||||
<reg name="r11" bitsize="32"/>
|
||||
<reg name="r12" bitsize="32"/>
|
||||
<reg name="sp" bitsize="32" type="data_ptr"/>
|
||||
<reg name="lr" bitsize="32"/>
|
||||
<reg name="pc" bitsize="32" type="code_ptr"/>
|
||||
|
||||
<!-- The CPSR is register 25, rather than register 16, because
|
||||
the FPA registers historically were placed between the PC
|
||||
and the CPSR in the "g" packet. -->
|
||||
|
||||
<reg name="cpsr" bitsize="32" regnum="25"/>
|
||||
</feature>
|
||||
<feature name="org.gnu.gdb.arm.vfp">
|
||||
<reg name="d0" bitsize="64" type="float"/>
|
||||
<reg name="d1" bitsize="64" type="float"/>
|
||||
<reg name="d2" bitsize="64" type="float"/>
|
||||
<reg name="d3" bitsize="64" type="float"/>
|
||||
<reg name="d4" bitsize="64" type="float"/>
|
||||
<reg name="d5" bitsize="64" type="float"/>
|
||||
<reg name="d6" bitsize="64" type="float"/>
|
||||
<reg name="d7" bitsize="64" type="float"/>
|
||||
<reg name="d8" bitsize="64" type="float"/>
|
||||
<reg name="d9" bitsize="64" type="float"/>
|
||||
<reg name="d10" bitsize="64" type="float"/>
|
||||
<reg name="d11" bitsize="64" type="float"/>
|
||||
<reg name="d12" bitsize="64" type="float"/>
|
||||
<reg name="d13" bitsize="64" type="float"/>
|
||||
<reg name="d14" bitsize="64" type="float"/>
|
||||
<reg name="d15" bitsize="64" type="float"/>
|
||||
<reg name="fpscr" bitsize="32" type="int" group="float"/>
|
||||
</feature>
|
||||
</target>
|
||||
)";
|
||||
|
||||
namespace GDBStub {
|
||||
|
||||
static int gdbserver_socket = -1;
|
||||
|
|
@ -211,7 +264,7 @@ static u8 ReadByte() {
|
|||
}
|
||||
|
||||
/// Calculate the checksum of the current command buffer.
|
||||
static u8 CalculateChecksum(u8 *buffer, u32 length) {
|
||||
static u8 CalculateChecksum(u8* buffer, u32 length) {
|
||||
return static_cast<u8>(std::accumulate(buffer, buffer + length, 0, std::plus<u8>()));
|
||||
}
|
||||
|
||||
|
|
@ -353,8 +406,15 @@ static void SendReply(const char* reply) {
|
|||
static void HandleQuery() {
|
||||
LOG_DEBUG(Debug_GDBStub, "gdb: query '%s'\n", command_buffer + 1);
|
||||
|
||||
if (!strcmp(reinterpret_cast<const char*>(command_buffer + 1), "TStatus")) {
|
||||
const char* query = reinterpret_cast<const char*>(command_buffer + 1);
|
||||
|
||||
if (strcmp(query, "TStatus") == 0 ) {
|
||||
SendReply("T0");
|
||||
} else if (strncmp(query, "Supported:", strlen("Supported:")) == 0) {
|
||||
// PacketSize needs to be large enough for target xml
|
||||
SendReply("PacketSize=800;qXfer:features:read+");
|
||||
} else if (strncmp(query, "Xfer:features:read:target.xml:", strlen("Xfer:features:read:target.xml:")) == 0) {
|
||||
SendReply(target_xml);
|
||||
} else {
|
||||
SendReply("");
|
||||
}
|
||||
|
|
@ -491,29 +551,25 @@ static void ReadRegisters() {
|
|||
memset(buffer, 0, sizeof(buffer));
|
||||
|
||||
u8* bufptr = buffer;
|
||||
for (int i = 0, reg = 0; reg <= FPSCR_REGISTER; i++, reg++) {
|
||||
if (reg <= R15_REGISTER) {
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetReg(reg));
|
||||
} else if (reg == CPSR_REGISTER) {
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetCPSR());
|
||||
} else if (reg == CPSR_REGISTER - 1) {
|
||||
// Dummy FPA register, ignore
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, 0);
|
||||
} else if (reg < CPSR_REGISTER) {
|
||||
// Dummy FPA registers, ignore
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, 0);
|
||||
IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0);
|
||||
IntToGdbHex(bufptr + (i + 2) * CHAR_BIT, 0);
|
||||
i += 2;
|
||||
} else if (reg > CPSR_REGISTER && reg < FPSCR_REGISTER) {
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPReg(reg - CPSR_REGISTER - 1));
|
||||
IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0);
|
||||
i++;
|
||||
} else if (reg == FPSCR_REGISTER) {
|
||||
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR));
|
||||
}
|
||||
|
||||
for (int reg = 0; reg <= R15_REGISTER; reg++) {
|
||||
IntToGdbHex(bufptr + reg * CHAR_BIT, Core::g_app_core->GetReg(reg));
|
||||
}
|
||||
|
||||
bufptr += (16 * CHAR_BIT);
|
||||
|
||||
IntToGdbHex(bufptr, Core::g_app_core->GetCPSR());
|
||||
|
||||
bufptr += CHAR_BIT;
|
||||
|
||||
for (int reg = 0; reg <= 31; reg++) {
|
||||
IntToGdbHex(bufptr + reg * CHAR_BIT, Core::g_app_core->GetVFPReg(reg));
|
||||
}
|
||||
|
||||
bufptr += (32 * CHAR_BIT);
|
||||
|
||||
IntToGdbHex(bufptr, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR));
|
||||
|
||||
SendReply(reinterpret_cast<char*>(buffer));
|
||||
}
|
||||
|
||||
|
|
@ -885,6 +941,12 @@ void Init(u16 port) {
|
|||
LOG_ERROR(Debug_GDBStub, "Failed to create gdb socket");
|
||||
}
|
||||
|
||||
// Set socket to SO_REUSEADDR so it can always bind on the same port
|
||||
int reuse_enabled = 1;
|
||||
if (setsockopt(tmpsock, SOL_SOCKET, SO_REUSEADDR, (const char*)&reuse_enabled, sizeof(reuse_enabled)) < 0) {
|
||||
LOG_ERROR(Debug_GDBStub, "Failed to set gdb socket option");
|
||||
}
|
||||
|
||||
const sockaddr* server_addr = reinterpret_cast<const sockaddr*>(&saddr_server);
|
||||
socklen_t server_addrlen = sizeof(saddr_server);
|
||||
if (bind(tmpsock, server_addr, server_addrlen) < 0) {
|
||||
|
|
|
|||
Reference in New Issue