C++ (Cpp) svcGetDebugThreadContext Examples

Example #1

File: debug.c Project: TemplarsCreed/Luma3DS

static int GDB_ParseCommonThreadInfo(char *out, GDBContext *ctx, int sig)
{
    u32 threadId = ctx->currentThreadId;
    ThreadContext regs;
    s64 dummy;
    u32 core;
    Result r = svcGetDebugThreadContext(&regs, 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, &regs.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;
}

Example #2

File: debug.c Project: FrankenMan/Luma3DS

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(&regs, 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, &regs, THREADCONTEXT_CONTROL_CPU_SPRS);
                    }

                    break;
                }

                default:
                    break;
            }
        }
        default:
            break;
    }
}