// threadId of ALL_THREADS means run all threads. Otherwise, run just the
// indicated thread.
static void runUntilInterrupt(Core *core, uint32_t threadId, bool enableFbWindow)
{
fd_set readFds;
int result;
struct timeval timeout;
FD_ZERO(&readFds);
while (1)
{
if (!executeInstructions(core, threadId, gScreenRefreshRate))
break;
if (enableFbWindow)
{
updateFramebuffer(getFramebuffer(core));
pollEvent();
}
FD_SET(gClientSocket, &readFds);
timeout.tv_sec = 0;
timeout.tv_usec = 0;
result = select(gClientSocket + 1, &readFds, NULL, NULL, &timeout);
if ((result < 0 && errno != EINTR) || result == 1)
break;
}
}
int main(int argc, char *argv[])
{
Core *core;
int option;
bool enableMemoryDump = false;
uint32_t memDumpBase = 0;
uint32_t memDumpLength = 0;
char *memDumpFilename = NULL;
size_t memDumpFilenameLen = 0;
bool verbose = false;
uint32_t fbWidth = 640;
uint32_t fbHeight = 480;
bool blockDeviceOpen = false;
bool enableFbWindow = false;
uint32_t totalThreads = 4;
char *separator;
uint32_t memorySize = 0x1000000;
const char *sharedMemoryFile = NULL;
struct stat st;
enum
{
MODE_NORMAL,
MODE_COSIMULATION,
MODE_GDB_REMOTE_DEBUG
} mode = MODE_NORMAL;
while ((option = getopt(argc, argv, "f:d:vm:b:t:c:r:s:i:o:")) != -1)
{
switch (option)
{
case 'v':
verbose = true;
break;
case 'r':
gScreenRefreshRate = parseNumArg(optarg);
break;
case 'f':
enableFbWindow = true;
separator = strchr(optarg, 'x');
if (!separator)
{
fprintf(stderr, "Invalid framebuffer size %s\n", optarg);
return 1;
}
fbWidth = parseNumArg(optarg);
fbHeight = parseNumArg(separator + 1);
break;
case 'm':
if (strcmp(optarg, "normal") == 0)
mode = MODE_NORMAL;
else if (strcmp(optarg, "cosim") == 0)
mode = MODE_COSIMULATION;
else if (strcmp(optarg, "gdb") == 0)
mode = MODE_GDB_REMOTE_DEBUG;
else
{
fprintf(stderr, "Unkown execution mode %s\n", optarg);
return 1;
}
break;
case 'd':
// Memory dump, of the form: filename,start,length
separator = strchr(optarg, ',');
if (separator == NULL)
{
fprintf(stderr, "bad format for memory dump\n");
usage();
return 1;
}
memDumpFilenameLen = (size_t)(separator - optarg);
memDumpFilename = (char*) malloc(memDumpFilenameLen + 1);
strncpy(memDumpFilename, optarg, memDumpFilenameLen);
memDumpFilename[memDumpFilenameLen] = '\0';
memDumpBase = parseNumArg(separator + 1);
separator = strchr(separator + 1, ',');
if (separator == NULL)
{
fprintf(stderr, "bad format for memory dump\n");
usage();
return 1;
}
memDumpLength = parseNumArg(separator + 1);
enableMemoryDump = true;
break;
case 'b':
if (openBlockDevice(optarg) < 0)
return 1;
blockDeviceOpen = true;
break;
case 'c':
memorySize = parseNumArg(optarg);
break;
case 't':
totalThreads = parseNumArg(optarg);
if (totalThreads < 1 || totalThreads > 32)
{
fprintf(stderr, "Total threads must be between 1 and 32\n");
return 1;
}
break;
case 's':
sharedMemoryFile = optarg;
break;
case 'i':
recvInterruptFd = open(optarg, O_RDWR);
if (recvInterruptFd < 0)
{
perror("main: failed to open receive interrupt pipe");
return 1;
}
if (fstat(recvInterruptFd, &st) < 0)
{
perror("main: stat failed on receive interrupt pipe");
return 1;
}
if ((st.st_mode & S_IFMT) != S_IFIFO)
{
fprintf(stderr, "%s is not a pipe\n", optarg);
return 1;
}
break;
case 'o':
sendInterruptFd = open(optarg, O_RDWR);
if (sendInterruptFd < 0)
{
perror("main: failed to open send interrupt pipe");
return 1;
}
if (fstat(sendInterruptFd, &st) < 0)
{
perror("main: stat failed on send interrupt pipe");
return 1;
}
if ((st.st_mode & S_IFMT) != S_IFIFO)
{
fprintf(stderr, "%s is not a pipe\n", optarg);
return 1;
}
break;
case '?':
usage();
return 1;
}
}
if (optind == argc)
{
fprintf(stderr, "No image filename specified\n");
usage();
return 1;
}
// Don't randomize memory for cosimulation mode, because
// memory is checked against the hardware model to ensure a match
core = initCore(memorySize, totalThreads, mode != MODE_COSIMULATION,
sharedMemoryFile);
if (core == NULL)
return 1;
if (loadHexFile(core, argv[optind]) < 0)
{
fprintf(stderr, "Error reading image %s\n", argv[optind]);
return 1;
}
if (enableFbWindow)
{
if (initFramebuffer(fbWidth, fbHeight) < 0)
return 1;
}
switch (mode)
{
case MODE_NORMAL:
if (verbose)
enableTracing(core);
setStopOnFault(core, false);
if (enableFbWindow)
{
while (executeInstructions(core, ALL_THREADS, gScreenRefreshRate))
{
updateFramebuffer(core);
pollFbWindowEvent();
checkInterruptPipe(core);
}
}
else
{
while (executeInstructions(core, ALL_THREADS, 1000000))
checkInterruptPipe(core);
}
break;
case MODE_COSIMULATION:
setStopOnFault(core, false);
if (runCosimulation(core, verbose) < 0)
return 1; // Failed
break;
case MODE_GDB_REMOTE_DEBUG:
setStopOnFault(core, true);
remoteGdbMainLoop(core, enableFbWindow);
break;
}
if (enableMemoryDump)
writeMemoryToFile(core, memDumpFilename, memDumpBase, memDumpLength);
dumpInstructionStats(core);
if (blockDeviceOpen)
closeBlockDevice();
if (stoppedOnFault(core))
return 1;
return 0;
}