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Merge pull request #1246 from polaris-/patch-1 

Fix read and write register blocks in gdbstub
This commit is contained in:
bunnei 2015-11-22 13:38:50 -05:00
parent 907c21d7fa 2732ec758d
commit 78b0d9c8b0
1 changed files with 31 additions and 26 deletions
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57
src/core/gdbstub/gdbstub.cpp
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@ -57,9 +57,8 @@ const u32 MSG_WAITALL = 8;
const u32 R0_REGISTER = 0; const u32 R0_REGISTER = 0;
const u32 R15_REGISTER = 15; const u32 R15_REGISTER = 15;
const u32 CSPR_REGISTER = 25; const u32 CPSR_REGISTER = 25;
const u32 FPSCR_REGISTER = 58; const u32 FPSCR_REGISTER = 58;
const u32 MAX_REGISTERS = 90;
namespace GDBStub { namespace GDBStub {
@ -472,10 +471,10 @@ static void ReadRegister() {
if (id >= R0_REGISTER && id <= R15_REGISTER) { if (id >= R0_REGISTER && id <= R15_REGISTER) {
IntToGdbHex(reply, Core::g_app_core->GetReg(id)); IntToGdbHex(reply, Core::g_app_core->GetReg(id));
} else if (id == CSPR_REGISTER) { } else if (id == CPSR_REGISTER) {
IntToGdbHex(reply, Core::g_app_core->GetCPSR()); IntToGdbHex(reply, Core::g_app_core->GetCPSR());
} else if (id > CSPR_REGISTER && id < FPSCR_REGISTER) { } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
IntToGdbHex(reply, Core::g_app_core->GetVFPReg(id - CSPR_REGISTER - 1)); // VFP registers should start at 26, so one after CSPR_REGISTER IntToGdbHex(reply, Core::g_app_core->GetVFPReg(id - CPSR_REGISTER - 1)); // VFP registers should start at 26, so one after CSPR_REGISTER
} else if (id == FPSCR_REGISTER) { } else if (id == FPSCR_REGISTER) {
IntToGdbHex(reply, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR)); // Get FPSCR IntToGdbHex(reply, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR)); // Get FPSCR
IntToGdbHex(reply + 8, 0); IntToGdbHex(reply + 8, 0);
@ -492,21 +491,25 @@ static void ReadRegisters() {
memset(buffer, 0, sizeof(buffer)); memset(buffer, 0, sizeof(buffer));
u8* bufptr = buffer; u8* bufptr = buffer;
for (int i = 0, reg = 0; i <= MAX_REGISTERS; i++, reg++) { for (int i = 0, reg = 0; reg <= FPSCR_REGISTER; i++, reg++) {
if (i <= R15_REGISTER) { if (reg <= R15_REGISTER) {
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetReg(reg)); IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetReg(reg));
} else if (i == CSPR_REGISTER) { } else if (reg == CPSR_REGISTER) {
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetCPSR()); IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetCPSR());
} else if (i < CSPR_REGISTER) { } 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 * CHAR_BIT, 0);
IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0); IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0);
i++; // These registers seem to be all 64bit instead of 32bit, so skip two instead of one IntToGdbHex(bufptr + (i + 2) * CHAR_BIT, 0);
reg++; i += 2;
} else if (i > CSPR_REGISTER && i < MAX_REGISTERS) { } else if (reg > CPSR_REGISTER && reg < FPSCR_REGISTER) {
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPReg(reg - CSPR_REGISTER - 1)); IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPReg(reg - CPSR_REGISTER - 1));
IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0); IntToGdbHex(bufptr + (i + 1) * CHAR_BIT, 0);
i++; i++;
} else if (i == MAX_REGISTERS) { } else if (reg == FPSCR_REGISTER) {
IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR)); IntToGdbHex(bufptr + i * CHAR_BIT, Core::g_app_core->GetVFPSystemReg(VFP_FPSCR));
} }
} }
@ -527,10 +530,10 @@ static void WriteRegister() {
if (id >= R0_REGISTER && id <= R15_REGISTER) { if (id >= R0_REGISTER && id <= R15_REGISTER) {
Core::g_app_core->SetReg(id, GdbHexToInt(buffer_ptr)); Core::g_app_core->SetReg(id, GdbHexToInt(buffer_ptr));
} else if (id == CSPR_REGISTER) { } else if (id == CPSR_REGISTER) {
Core::g_app_core->SetCPSR(GdbHexToInt(buffer_ptr)); Core::g_app_core->SetCPSR(GdbHexToInt(buffer_ptr));
} else if (id > CSPR_REGISTER && id < FPSCR_REGISTER) { } else if (id > CPSR_REGISTER && id < FPSCR_REGISTER) {
Core::g_app_core->SetVFPReg(id - CSPR_REGISTER - 1, GdbHexToInt(buffer_ptr)); Core::g_app_core->SetVFPReg(id - CPSR_REGISTER - 1, GdbHexToInt(buffer_ptr));
} else if (id == FPSCR_REGISTER) { } else if (id == FPSCR_REGISTER) {
Core::g_app_core->SetVFPSystemReg(VFP_FPSCR, GdbHexToInt(buffer_ptr)); Core::g_app_core->SetVFPSystemReg(VFP_FPSCR, GdbHexToInt(buffer_ptr));
} else { } else {
@ -547,18 +550,20 @@ static void WriteRegisters() {
if (command_buffer[0] != 'G') if (command_buffer[0] != 'G')
return SendReply("E01"); return SendReply("E01");
for (int i = 0, reg = 0; i <= MAX_REGISTERS; i++, reg++) { for (int i = 0, reg = 0; reg <= FPSCR_REGISTER; i++, reg++) {
if (i <= R15_REGISTER) { if (reg <= R15_REGISTER) {
Core::g_app_core->SetReg(reg, GdbHexToInt(buffer_ptr + i * CHAR_BIT)); Core::g_app_core->SetReg(reg, GdbHexToInt(buffer_ptr + i * CHAR_BIT));
} else if (i == CSPR_REGISTER) { } else if (reg == CPSR_REGISTER) {
Core::g_app_core->SetCPSR(GdbHexToInt(buffer_ptr + i * CHAR_BIT)); Core::g_app_core->SetCPSR(GdbHexToInt(buffer_ptr + i * CHAR_BIT));
} else if (i < CSPR_REGISTER) { } else if (reg == CPSR_REGISTER - 1) {
i++; // These registers seem to be all 64bit instead of 32bit, so skip two instead of one // Dummy FPA register, ignore
reg++; } else if (reg < CPSR_REGISTER) {
} else if (i > CSPR_REGISTER && i < MAX_REGISTERS) { // Dummy FPA registers, ignore
Core::g_app_core->SetVFPReg(reg - CSPR_REGISTER - 1, GdbHexToInt(buffer_ptr + i * CHAR_BIT)); i += 2;
} else if (reg > CPSR_REGISTER && reg < FPSCR_REGISTER) {
Core::g_app_core->SetVFPReg(reg - CPSR_REGISTER - 1, GdbHexToInt(buffer_ptr + i * CHAR_BIT));
i++; // Skip padding i++; // Skip padding
} else if (i == MAX_REGISTERS) { } else if (reg == FPSCR_REGISTER) {
Core::g_app_core->SetVFPSystemReg(VFP_FPSCR, GdbHexToInt(buffer_ptr + i * CHAR_BIT)); Core::g_app_core->SetVFPSystemReg(VFP_FPSCR, GdbHexToInt(buffer_ptr + i * CHAR_BIT));
} }
} }