static int GDB_ParseCommonThreadInfo(char *out, GDBContext *ctx, int sig) { u32 threadId = ctx->currentThreadId; ThreadContext regs; s64 dummy; u32 core; Result r = svcGetDebugThreadContext(®s, ctx->debug, threadId, THREADCONTEXT_CONTROL_ALL); int n = sprintf(out, "T%02xthread:%x;", sig, threadId); if(R_FAILED(r)) return n; r = svcGetDebugThreadParam(&dummy, &core, ctx->debug, ctx->currentThreadId, DBGTHREAD_PARAMETER_CPU_CREATOR); // Creator = "first ran, and running the thread" if(R_SUCCEEDED(r)) n += sprintf(out + n, "core:%x;", core); for(u32 i = 0; i <= 12; i++) n += sprintf(out + n, "%x:%08x;", i, __builtin_bswap32(regs.cpu_registers.r[i])); n += sprintf(out + n, "d:%08x;e:%08x;f:%08x;19:%08x;", __builtin_bswap32(regs.cpu_registers.sp), __builtin_bswap32(regs.cpu_registers.lr), __builtin_bswap32(regs.cpu_registers.pc), __builtin_bswap32(regs.cpu_registers.cpsr)); for(u32 i = 0; i < 16; i++) { u64 val; memcpy(&val, ®s.fpu_registers.d[i], 8); n += sprintf(out + n, "%x:%016llx;", 26 + i, __builtin_bswap64(val)); } n += sprintf(out + n, "2a:%08x;2b:%08x;", __builtin_bswap32(regs.fpu_registers.fpscr), __builtin_bswap32(regs.fpu_registers.fpexc)); return n; }
void GDB_PreprocessDebugEvent(GDBContext *ctx, DebugEventInfo *info) { switch(info->type) { case DBGEVENT_ATTACH_THREAD: { if(ctx->nbThreads == MAX_DEBUG_THREAD) svcBreak(USERBREAK_ASSERT); else { ctx->threadInfos[ctx->nbThreads].id = info->thread_id; ctx->threadInfos[ctx->nbThreads++].tls = info->attach_thread.thread_local_storage; } break; } case DBGEVENT_EXIT_THREAD: { u32 i; for(i = 0; i < ctx->nbThreads && ctx->threadInfos[i].id != info->thread_id; i++); if(i == ctx->nbThreads || ctx->threadInfos[i].id != info->thread_id) svcBreak(USERBREAK_ASSERT); else { for(u32 j = i; j < ctx->nbThreads - 1; j++) memcpy(ctx->threadInfos + j, ctx->threadInfos + j + 1, sizeof(ThreadInfo)); memset(ctx->threadInfos + --ctx->nbThreads, 0, sizeof(ThreadInfo)); } break; } case DBGEVENT_EXIT_PROCESS: { ctx->processEnded = true; ctx->processExited = info->exit_process.reason == EXITPROCESS_EVENT_EXIT; break; } case DBGEVENT_OUTPUT_STRING: { if(info->output_string.string_addr >= 0xFFFFFFFE) { u32 sz = info->output_string.string_size, addr = info->output_string.string_addr, threadId = info->thread_id; memset(info, 0, sizeof(DebugEventInfo)); info->type = (addr == 0xFFFFFFFF) ? DBGEVENT_SYSCALL_OUT : DBGEVENT_SYSCALL_IN; info->thread_id = threadId; info->flags = 1; info->syscall.syscall = sz; } break; } case DBGEVENT_EXCEPTION: { switch(info->exception.type) { case EXCEVENT_UNDEFINED_INSTRUCTION: { // kernel bugfix for thumb mode ThreadContext regs; Result r = svcGetDebugThreadContext(®s, ctx->debug, info->thread_id, THREADCONTEXT_CONTROL_CPU_SPRS); if(R_SUCCEEDED(r) && (regs.cpu_registers.cpsr & 0x20) != 0) { regs.cpu_registers.pc += 2; r = svcSetDebugThreadContext(ctx->debug, info->thread_id, ®s, THREADCONTEXT_CONTROL_CPU_SPRS); } break; } default: break; } } default: break; } }