284 lines
9.0 KiB
C
284 lines
9.0 KiB
C
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/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2017 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
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* * Requiring preservation of specified reasonable legal notices or
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* author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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* * Prohibiting misrepresentation of the origin of that material,
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* or requiring that modified versions of such material be marked in
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* reasonable ways as different from the original version.
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*/
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#include <3ds.h>
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#include "errdisp.h"
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#include "draw.h"
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#include "menu.h"
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#include "memory.h"
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static inline void assertSuccess(Result res)
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{
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if(R_FAILED(res))
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svcBreak(USERBREAK_PANIC);
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}
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static MyThread errDispThread;
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static u8 ALIGN(8) errDispThreadStack[THREAD_STACK_SIZE];
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static char userString[0x100 + 1] = {0};
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MyThread *errDispCreateThread(void)
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{
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if(R_FAILED(MyThread_Create(&errDispThread, errDispThreadMain, errDispThreadStack, THREAD_STACK_SIZE, 0x18, CORE_SYSTEM)))
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svcBreak(USERBREAK_PANIC);
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return &errDispThread;
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}
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static inline u32 ERRF_DisplayRegisterValue(u32 posX, u32 posY, const char *name, u32 value)
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{
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return Draw_DrawFormattedString(posX, posY, COLOR_WHITE, "%-9s %08x", name, value);
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}
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void ERRF_DisplayError(ERRF_FatalErrInfo *info)
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{
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Draw_Lock();
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u32 posY = Draw_DrawString(10, 10, COLOR_RED, userString[0] == 0 ? "An error occurred (ErrDisp)" : userString);
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static const char *types[] = {
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"generic", "corrupted", "card removed", "exception", "result failure", "logged", "invalid"
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};
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static const char *exceptionTypes[] = {
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"prefetch abort", "data abort", "undefined instruction", "VFP", "invalid"
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};
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const char *type = (u32)info->type > (u32)ERRF_ERRTYPE_LOGGED ? types[6] : types[(u32)info->type];
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posY = posY < 30 ? 30 : posY;
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if(info->type == ERRF_ERRTYPE_EXCEPTION)
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{
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const char *exceptionType = (u32)info->data.exception_data.excep.type > (u32)ERRF_EXCEPTION_VFP ?
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exceptionTypes[4] : exceptionTypes[(u32)info->data.exception_data.excep.type];
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Draw_DrawFormattedString(10, posY, COLOR_WHITE, "Error type: exception (%s)", exceptionType);
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}
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else
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Draw_DrawFormattedString(10, posY, COLOR_WHITE, "Error type: %s", type);
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if(info->type != ERRF_ERRTYPE_CARD_REMOVED)
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{
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Handle processHandle;
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Result res;
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posY += SPACING_Y;
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posY = Draw_DrawFormattedString(10, posY + SPACING_Y, COLOR_WHITE, "Process ID: %u", info->procId);
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res = svcOpenProcess(&processHandle, info->procId);
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if(R_SUCCEEDED(res))
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{
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u64 titleId;
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char name[9] = { 0 };
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svcGetProcessInfo((s64 *)name, processHandle, 0x10000);
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svcGetProcessInfo((s64 *)&titleId, processHandle, 0x10001);
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svcCloseHandle(processHandle);
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posY = Draw_DrawFormattedString(10, posY + SPACING_Y, COLOR_WHITE, "Process name: %s", name);
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posY = Draw_DrawFormattedString(10, posY + SPACING_Y, COLOR_WHITE, "Process title ID: 0x%016llx", titleId);
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}
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posY += SPACING_Y;
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}
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if(info->type == ERRF_ERRTYPE_EXCEPTION)
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{
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static const char *registerNames[] = {
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12",
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"sp", "lr", "pc", "cpsr"
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};
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u32 *regs = (u32 *)(&info->data.exception_data.regs);
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for(u32 i = 0; i < 17; i += 2)
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{
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posY = ERRF_DisplayRegisterValue(10, posY + SPACING_Y, registerNames[i], regs[i]);
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if(i != 16)
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ERRF_DisplayRegisterValue(10 + 28 * SPACING_X, posY, registerNames[i + 1], i == 16 ? regs[20] : regs[i + 1]);
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}
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if(info->data.exception_data.excep.type == ERRF_EXCEPTION_PREFETCH_ABORT
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|| info->data.exception_data.excep.type == ERRF_EXCEPTION_DATA_ABORT)
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{
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ERRF_DisplayRegisterValue(10 + 28 * SPACING_X, posY, "far", info->data.exception_data.excep.far);
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posY = ERRF_DisplayRegisterValue(10, posY + SPACING_Y, "fsr", info->data.exception_data.excep.fsr);
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}
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else if(info->data.exception_data.excep.type == ERRF_EXCEPTION_VFP)
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{
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ERRF_DisplayRegisterValue(10 + 28 * SPACING_X, posY, "fpexc", info->data.exception_data.excep.fpexc);
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posY = ERRF_DisplayRegisterValue(10, posY + SPACING_Y, "fpinst", info->data.exception_data.excep.fpinst);
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ERRF_DisplayRegisterValue(10 + 28 * SPACING_X, posY, "fpinst2", info->data.exception_data.excep.fpinst2);
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}
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}
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else if(info->type != ERRF_ERRTYPE_CARD_REMOVED)
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{
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if(info->type != ERRF_ERRTYPE_FAILURE)
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posY = Draw_DrawFormattedString(10, posY + SPACING_Y, COLOR_WHITE, "Address: 0x%08x", info->pcAddr);
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posY = Draw_DrawFormattedString(10, posY + SPACING_Y, COLOR_WHITE, "Error code: 0x%08x", info->resCode);
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}
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const char *desc;
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switch(info->type)
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{
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case ERRF_ERRTYPE_CARD_REMOVED:
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desc = "The Game Card was removed.";
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break;
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case ERRF_ERRTYPE_MEM_CORRUPT:
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desc = "The System Memory has been damaged.";
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break;
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case ERRF_ERRTYPE_FAILURE:
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info->data.failure_mesg[0x60] = 0; // make sure the last byte in the IPC buffer is NULL
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desc = info->data.failure_mesg;
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break;
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default:
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desc = "";
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break;
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}
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posY += SPACING_Y;
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if(desc[0] != 0)
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posY = Draw_DrawString(10, posY + SPACING_Y, COLOR_WHITE, desc) + SPACING_Y;
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posY = Draw_DrawString(10, posY + SPACING_Y, COLOR_WHITE, "Press any button to reboot");
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Draw_FlushFramebuffer();
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Draw_Unlock();
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}
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void ERRF_HandleCommands(void)
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{
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u32 *cmdbuf = getThreadCommandBuffer();
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switch(cmdbuf[0] >> 16)
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{
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case 1: // Throw
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{
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ERRF_FatalErrInfo *info = (ERRF_FatalErrInfo *)(cmdbuf + 1);
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menuEnter();
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Draw_Lock();
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Draw_ClearFramebuffer();
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Draw_FlushFramebuffer();
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ERRF_DisplayError(info);
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/*
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If we ever wanted to return:
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draw_unlock();
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menuLeave();
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cmdbuf[0] = 0x10040;
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cmdbuf[1] = 0;
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but we don't
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*/
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waitInput();
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svcKernelSetState(7);
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__builtin_unreachable();
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break;
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}
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case 2: // SetUserString
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{
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if(cmdbuf[0] != 0x20042 || (cmdbuf[2] & 0x3C0F) != 2)
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{
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cmdbuf[0] = 0x40;
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cmdbuf[1] = 0xD9001830;
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}
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else
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{
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cmdbuf[0] = 0x20040;
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u32 sz = cmdbuf[1] <= 0x100 ? sz : 0x100;
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memcpy(userString, cmdbuf + 3, sz);
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userString[sz] = 0;
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}
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break;
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}
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}
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}
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void errDispThreadMain(void)
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{
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Handle handles[2];
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Handle serverHandle, clientHandle, sessionHandle = 0;
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u32 replyTarget = 0;
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s32 index;
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Result res;
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u32 *cmdbuf = getThreadCommandBuffer();
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assertSuccess(svcCreatePort(&serverHandle, &clientHandle, "err:f", 1));
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do
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{
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handles[0] = serverHandle;
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handles[1] = sessionHandle;
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if(replyTarget == 0) // k11
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cmdbuf[0] = 0xFFFF0000;
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res = svcReplyAndReceive(&index, handles, sessionHandle == 0 ? 1 : 2, replyTarget);
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if(R_FAILED(res))
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{
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if((u32)res == 0xC920181A) // session closed by remote
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{
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svcCloseHandle(sessionHandle);
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sessionHandle = 0;
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replyTarget = 0;
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}
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else
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svcBreak(USERBREAK_PANIC);
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}
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else
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{
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if(index == 0)
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{
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Handle session;
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assertSuccess(svcAcceptSession(&session, serverHandle));
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if(sessionHandle == 0)
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sessionHandle = session;
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else
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svcCloseHandle(session);
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}
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else
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{
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ERRF_HandleCommands();
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replyTarget = sessionHandle;
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}
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}
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}
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while(!terminationRequest);
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svcCloseHandle(sessionHandle);
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svcCloseHandle(clientHandle);
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svcCloseHandle(serverHandle);
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}
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