/* * This file is part of Luma3DS * Copyright (C) 2016-2019 Aurora Wright, TuxSH * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . * * Additional Terms 7.b and 7.c of GPLv3 apply to this file: * * Requiring preservation of specified reasonable legal notices or * author attributions in that material or in the Appropriate Legal * Notices displayed by works containing it. * * Prohibiting misrepresentation of the origin of that material, * or requiring that modified versions of such material be marked in * reasonable ways as different from the original version. */ #include <3ds.h> #include "errdisp.h" #include "draw.h" #include "menu.h" #include "memory.h" #include "fmt.h" #include "ifile.h" static inline void assertSuccess(Result res) { if(R_FAILED(res)) svcBreak(USERBREAK_PANIC); } static char userString[0x100 + 1] = {0}; static inline u32 ERRF_DisplayRegisterValue(u32 posX, u32 posY, const char *name, u32 value) { return Draw_DrawFormattedString(posX, posY, COLOR_WHITE, "%-9s %08lx", name, value); } static inline int ERRF_FormatRegisterValue(char *out, const char *name, u32 value) { return sprintf(out, "%-9s %08lx", name, value); } static int ERRF_FormatError(char *out, ERRF_FatalErrInfo *info) { char *outStart = out; static const char *types[] = { "generic", "corrupted", "card removed", "exception", "result failure", "logged", "invalid" }; static const char *exceptionTypes[] = { "prefetch abort", "data abort", "undefined instruction", "VFP", "invalid" }; const char *type = (u32)info->type > (u32)ERRF_ERRTYPE_LOGGED ? types[6] : types[(u32)info->type]; if(info->type == ERRF_ERRTYPE_EXCEPTION) { const char *exceptionType = (u32)info->data.exception_data.excep.type > (u32)ERRF_EXCEPTION_VFP ? exceptionTypes[4] : exceptionTypes[(u32)info->data.exception_data.excep.type]; out += sprintf(out, "Error type: exception (%s)\n", exceptionType); } else out += sprintf(out, "Error type: %s\n", type); if(info->type != ERRF_ERRTYPE_CARD_REMOVED) { Handle processHandle; Result res; out += sprintf(out, "\nProcess ID: %lu\n", info->procId); res = svcOpenProcess(&processHandle, info->procId); if(R_SUCCEEDED(res)) { u64 titleId; char name[9] = { 0 }; svcGetProcessInfo((s64 *)name, processHandle, 0x10000); svcGetProcessInfo((s64 *)&titleId, processHandle, 0x10001); svcCloseHandle(processHandle); out += sprintf(out, "Process name: %s\n", name); out += sprintf(out, "Process title ID: 0x%016llx\n", titleId); } out += sprintf(out, "\n"); } if(info->type == ERRF_ERRTYPE_EXCEPTION) { static const char *registerNames[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc", "cpsr" }; u32 *regs = (u32 *)(&info->data.exception_data.regs); for(u32 i = 0; i < 17; i += 2) { out += ERRF_FormatRegisterValue(out, registerNames[i], regs[i]); if(i != 16) { out += sprintf(out, " "); out += ERRF_FormatRegisterValue(out, registerNames[i + 1], i == 16 ? regs[20] : regs[i + 1]); out += sprintf(out, "\n"); } } if(info->data.exception_data.excep.type == ERRF_EXCEPTION_PREFETCH_ABORT || info->data.exception_data.excep.type == ERRF_EXCEPTION_DATA_ABORT) { out += sprintf(out, " "); out += ERRF_FormatRegisterValue(out, "far", info->data.exception_data.excep.far); out += sprintf(out, "\n"); out += ERRF_FormatRegisterValue(out, "fsr", info->data.exception_data.excep.fsr); } else if(info->data.exception_data.excep.type == ERRF_EXCEPTION_VFP) { out += sprintf(out, " "); out += ERRF_FormatRegisterValue(out, "fpexc", info->data.exception_data.excep.fpexc); out += sprintf(out, "\n"); out += ERRF_FormatRegisterValue(out, "fpinst", info->data.exception_data.excep.fpinst); out += sprintf(out, " "); out += ERRF_FormatRegisterValue(out, "fpinst2", info->data.exception_data.excep.fpinst2); out += sprintf(out, "\n"); } out += sprintf(out, "\n"); } else if(info->type != ERRF_ERRTYPE_CARD_REMOVED) { if(info->type != ERRF_ERRTYPE_FAILURE) out += sprintf(out, "Address: 0x%08lx\n", info->pcAddr); out += sprintf(out, "Error code: 0x%08lx\n", info->resCode); } const char *desc; switch(info->type) { case ERRF_ERRTYPE_CARD_REMOVED: desc = "The card was removed."; break; case ERRF_ERRTYPE_MEM_CORRUPT: desc = "The System Memory has been damaged."; break; case ERRF_ERRTYPE_FAILURE: info->data.failure_mesg[0x60] = 0; // make sure the last byte in the IPC buffer is NULL desc = info->data.failure_mesg; break; default: desc = ""; break; } if(desc[0] != 0) out += sprintf(out, "\n%s\n", desc); out += sprintf(out, "\n"); return out - outStart; } static void ERRF_DisplayError(ERRF_FatalErrInfo *info) { Draw_Lock(); u32 posY = Draw_DrawString(10, 10, COLOR_RED, userString[0] == 0 ? "An error occurred (ErrDisp)" : userString); char buf[0x400]; ERRF_FormatError(buf, info); posY = posY < 30 ? 30 : posY; posY = Draw_DrawString(10, posY, COLOR_WHITE, buf); posY = Draw_DrawString(10, posY + SPACING_Y, COLOR_WHITE, "Press any button to reboot."); Draw_FlushFramebuffer(); Draw_Unlock(); } static Result ERRF_SaveErrorToFile(ERRF_FatalErrInfo *info) { char buf[0x400]; FS_ArchiveID archiveId; s64 out; u64 size, total; bool isSdMode; int n = 0; Result res = 0; IFile file; n = ERRF_FormatError(buf, info); n += sprintf(buf + n, "-------------------------------------\n\n"); if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x203))) svcBreak(USERBREAK_ASSERT); isSdMode = (bool)out; archiveId = isSdMode ? ARCHIVE_SDMC : ARCHIVE_NAND_RW; res = IFile_Open(&file, archiveId, fsMakePath(PATH_EMPTY, ""), fsMakePath(PATH_ASCII, "/luma/errdisp.txt"), FS_OPEN_WRITE | FS_OPEN_CREATE); if(R_FAILED(res)) return res; res = IFile_GetSize(&file, &size); if(R_FAILED(res)) { IFile_Close(&file); return res; } file.pos = size; res = IFile_Write(&file, &total, buf, (u32)n, 0); IFile_Close(&file); return res; } void ERRF_HandleCommands(void *ctx) { (void)ctx; u32 *cmdbuf = getThreadCommandBuffer(); switch(cmdbuf[0] >> 16) { case 1: // Throw { ERRF_FatalErrInfo *info = (ERRF_FatalErrInfo *)(cmdbuf + 1); if(info->type != ERRF_ERRTYPE_LOGGED || info->procId == 0 || R_FAILED(ERRF_SaveErrorToFile(info))) { menuEnter(); Draw_Lock(); Draw_ClearFramebuffer(); Draw_FlushFramebuffer(); ERRF_DisplayError(info); /* If we ever wanted to return: Draw_Unlock(); menuLeave(); but we don't */ waitInput(); svcKernelSetState(7); __builtin_unreachable(); } cmdbuf[0] = 0x10040; cmdbuf[1] = 0; break; } case 2: // SetUserString { if(cmdbuf[0] != 0x20042 || (cmdbuf[2] & 0x3C0F) != 2) { cmdbuf[0] = 0x40; cmdbuf[1] = 0xD9001830; } else { cmdbuf[0] = 0x20040; u32 sz = cmdbuf[1] <= 0x100 ? sz : 0x100; memcpy(userString, cmdbuf + 3, sz); userString[sz] = 0; } break; } } }