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/* main.c
*
* COPYRIGHT (c) 1993 by AT&T Bell Laboratories.
*
* This is the main routine for the interactive version of SML/NJ.
*/
#include <stdio.h>
#include <ctype.h>
#include "ml-base.h"
#include "ml-options.h"
#include "ml-limits.h"
#include "ml-globals.h"
#ifdef COLLECT_STATS
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "stats-data.h"
#endif
FILE *DebugF = NULL;
#ifdef TARGET_BYTECODE
FILE *BC_stdout = NULL;
#endif
/* Runtime globals */
bool_t SilentLoad = TRUE;
bool_t DumpObjectStrings = FALSE;
bool_t GCMessages = FALSE;
char **RawArgs;
char **CmdLineArgs; /* does not include the command name (argv[0]) */
char *MLCmdName; /* the command name used to invoke the runtime */
#ifdef HACKED_STANDALONE
bool_t StandAlone = TRUE;
#endif
/* local variables */
PVT bool_t isBoot = FALSE; /* true if we should bootstrap a system */
PVT char *LoadImage /* the path name of the image file to load */
= DFLT_IMAGE;
PVT char *BootFrom /* the boot source (bin file list file). */
= NULL;
# ifdef MP_SUPPORT
PVT int NumProcs = 1; /* not used */
# endif
PVT void ParseOptions (int argc, char **argv, heap_params_t **heapParams);
int main (int argc, char **argv)
{
heap_params_t *heapParams;
DebugF = stderr;
/* process the command-line options */
ParseOptions (argc, argv, &heapParams);
#ifdef TARGET_BYTECODE
if (BC_stdout == NULL)
BC_stdout = fdopen(dup(1), "w");
#endif
InitTimers ();
RecordGlobals ();
InitCFunList ();
#ifdef MP_SUPPORT
MP_Init();
#endif
/* start ML */
if (isBoot) {
BootML (BootFrom, heapParams);
}
else { /* load an image */
LoadML (LoadImage, heapParams);
}
Exit (0);
} /* end of main. */
/* ParseOptions:
*
* Parse the command-line options.
*/
PVT void ParseOptions (int argc, char **argv, heap_params_t **heapParams)
{
char option[MAX_OPT_LEN], *optionArg, **nextArg;
bool_t errFlg = FALSE;
/* first scan for any heap/GC parameters */
if ((*heapParams = ParseHeapParams(argv)) == NIL(heap_params_t *))
errFlg = TRUE;
RawArgs = argv;
CmdLineArgs = NEW_VEC(char *, argc);
MLCmdName = *argv++;
#ifdef HACKED_STANDALONE
LoadImage = MLCmdName;
#endif
nextArg = CmdLineArgs;
while (--argc > 0) {
char *arg = *argv++;
#define MATCH(opt) (strcmp(opt, option) == 0)
#define CHECK(opt) { \
if (optionArg[0] == '\0') { \
errFlg = TRUE; \
Error("missing argument for \"%s\" option\n", opt); \
continue; \
} \
} /* CHECK */
if (isRuntimeOption(arg, option, &optionArg)) {
if (MATCH("boot")) {
CHECK("boot");
isBoot = TRUE;
BootFrom = optionArg;
}
else if (MATCH("load")) {
CHECK("load");
LoadImage = optionArg;
#ifdef HACKED_STANDALONE
LoadImage = MLCmdName;
#endif
}
else if (MATCH("cmdname")) {
CHECK("cmdname");
MLCmdName = optionArg;
#ifdef HACKED_STANDALONE
StandAlone = FALSE;
#endif
}
#ifdef MP_SUPPORT
else if (MATCH("nprocs")) {
CHECK("nprocs");
NumProcs = atoi(optionArg);
if (NumProcs < 0)
NumProcs = 0;
else if (NumProcs > MAX_NUM_PROCS)
NumProcs = MAX_NUM_PROCS;
}
#endif
else if (MATCH("quiet")) {
SilentLoad = TRUE;
}
else if (MATCH("verbose")) {
SilentLoad = FALSE;
}
else if (MATCH("objects")) {
DumpObjectStrings = TRUE;
}
else if (MATCH("debug")) {
CHECK("debug");
if ((DebugF = fopen(optionArg, "w")) == NULL) {
DebugF = stderr; /* restore the file pointer */
errFlg = TRUE;
Error("unable to open debug output file \"%s\"\n", *(argv[-1]));
continue;
}
}
#ifdef COLLECT_STATS
else if (MATCH("stats")) {
CHECK("stats");
StatsFD = open (optionArg, O_WRONLY|O_TRUNC|O_CREAT, 0666);
if (StatsFD == -1) {
errFlg = TRUE;
Error("unable to open statistics file \"%s\"\n", *(argv[-1]));
continue;
}
}
#endif
#ifdef TARGET_BYTECODE
else if (MATCH("dump")) {
CHECK("dump");
BC_stdout = fopen (optionArg, "w");
}
#ifdef INSTR_TRACE
else if (MATCH("trace")) {
extern bool_t traceOn;
traceOn = TRUE;
}
#endif
#endif
}
else {
*nextArg++ = arg;
}
} /* end while */
*nextArg = NIL(char *);
if (errFlg)
Exit (1);
} /* end of ParseOptions */
/* Exit:
* Exit from the ML system.
*/
void Exit (int code)
{
#if COUNT_REG_MASKS
DumpMasks();
#endif
#ifdef COLLECT_STATS
if (StatsFD >= 0) {
STATS_FLUSH_BUF();
close (StatsFD);
}
#endif
#if (defined(TARGET_BYTECODE) && defined(INSTR_COUNT))
{
extern void PrintInstrCount (FILE *f);
PrintInstrCount (DebugF);
}
#endif
exit (code);
} /* end of Exit */
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