283 lines
8.7 KiB
C
283 lines
8.7 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2019 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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#include "fmt.h"
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#include "ifile.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 char userString[0x100 + 1] = {0};
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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 %08lx", name, value);
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}
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static inline int ERRF_FormatRegisterValue(char *out, const char *name, u32 value)
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{
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return sprintf(out, "%-9s %08lx", name, value);
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}
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static int ERRF_FormatError(char *out, ERRF_FatalErrInfo *info)
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{
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char *outStart = out;
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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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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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out += sprintf(out, "Error type: exception (%s)\n", exceptionType);
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}
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else
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out += sprintf(out, "Error type: %s\n", 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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out += sprintf(out, "\nProcess ID: %lu\n", 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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out += sprintf(out, "Process name: %s\n", name);
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out += sprintf(out, "Process title ID: 0x%016llx\n", titleId);
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}
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out += sprintf(out, "\n");
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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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out += ERRF_FormatRegisterValue(out, registerNames[i], regs[i]);
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if(i != 16)
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{
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out += sprintf(out, " ");
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out += ERRF_FormatRegisterValue(out, registerNames[i + 1], i == 16 ? regs[20] : regs[i + 1]);
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out += sprintf(out, "\n");
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}
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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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out += sprintf(out, " ");
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out += ERRF_FormatRegisterValue(out, "far", info->data.exception_data.excep.far);
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out += sprintf(out, "\n");
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out += ERRF_FormatRegisterValue(out, "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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out += sprintf(out, " ");
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out += ERRF_FormatRegisterValue(out, "fpexc", info->data.exception_data.excep.fpexc);
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out += sprintf(out, "\n");
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out += ERRF_FormatRegisterValue(out, "fpinst", info->data.exception_data.excep.fpinst);
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out += sprintf(out, " ");
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out += ERRF_FormatRegisterValue(out, "fpinst2", info->data.exception_data.excep.fpinst2);
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out += sprintf(out, "\n");
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}
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out += sprintf(out, "\n");
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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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out += sprintf(out, "Address: 0x%08lx\n", info->pcAddr);
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out += sprintf(out, "Error code: 0x%08lx\n", 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 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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if(desc[0] != 0)
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out += sprintf(out, "\n%s\n", desc);
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out += sprintf(out, "\n");
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return out - outStart;
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}
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static 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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char buf[0x400];
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ERRF_FormatError(buf, info);
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posY = posY < 30 ? 30 : posY;
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posY = Draw_DrawString(10, posY, COLOR_WHITE, buf);
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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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static Result ERRF_SaveErrorToFile(ERRF_FatalErrInfo *info)
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{
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char buf[0x400];
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FS_ArchiveID archiveId;
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s64 out;
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u64 size, total;
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bool isSdMode;
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int n = 0;
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Result res = 0;
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IFile file;
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n = ERRF_FormatError(buf, info);
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n += sprintf(buf + n, "-------------------------------------\n\n");
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if(R_FAILED(svcGetSystemInfo(&out, 0x10000, 0x203))) svcBreak(USERBREAK_ASSERT);
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isSdMode = (bool)out;
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archiveId = isSdMode ? ARCHIVE_SDMC : ARCHIVE_NAND_RW;
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res = IFile_Open(&file, archiveId, fsMakePath(PATH_EMPTY, ""), fsMakePath(PATH_ASCII, "/luma/errdisp.txt"), FS_OPEN_WRITE | FS_OPEN_CREATE);
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if(R_FAILED(res))
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return res;
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res = IFile_GetSize(&file, &size);
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if(R_FAILED(res))
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{
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IFile_Close(&file);
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return res;
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}
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file.pos = size;
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res = IFile_Write(&file, &total, buf, (u32)n, 0);
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IFile_Close(&file);
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return res;
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}
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void ERRF_HandleCommands(void *ctx)
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{
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(void)ctx;
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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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if(info->type != ERRF_ERRTYPE_LOGGED || info->procId == 0 || R_FAILED(ERRF_SaveErrorToFile(info)))
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{
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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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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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}
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cmdbuf[0] = 0x10040;
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cmdbuf[1] = 0;
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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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