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Better usage message for qcvm, don't exit after any of the information prints - but don't execute if any of them are used

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This commit is contained in:
Wolfgang (Blub) Bumiller 2012-12-18 15:39:20 +01:00
parent 49c4da9670
commit 70f676784d
1 changed files with 46 additions and 16 deletions
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60
exec.c
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@ -776,8 +776,20 @@ static const char *arg0 = NULL;
void usage()
{
printf("usage: [-debug] %s file\n", arg0);
exit(1);
printf("usage: %s [options] [parameters] file\n", arg0);
printf("options:\n");
printf(" -h, --help print this message\n"
" -trace trace the execution\n"
" -profile perform profiling during execution\n"
" -info print information from the prog's header\n"
" -disasm disassemble and exit\n"
" -printdefs list the defs section\n"
" -printfields list the field section\n"
" -printfuns list functions information\n");
printf("parameters:\n");
printf(" -vector <V> pass a vector parameter to main()\n"
" -float <f> pass a float parameter to main()\n"
" -string <s> pass a string parameter to main() \n");
}
static void prog_main_setparams(qc_program *prog)
@ -829,14 +841,24 @@ int main(int argc, char **argv)
bool opts_printfuns = false;
bool opts_disasm = false;
bool opts_info = false;
bool noexec = false;
arg0 = argv[0];
if (argc < 2)
if (argc < 2) {
usage();
exit(1);
}
while (argc > 2) {
if (!strcmp(argv[1], "-trace")) {
if (!strcmp(argv[1], "-h") ||
!strcmp(argv[1], "-help") ||
!strcmp(argv[1], "--help"))
{
usage();
exit(0);
}
else if (!strcmp(argv[1], "-trace")) {
--argc;
++argv;
xflags |= VMXF_TRACE;
@ -850,26 +872,31 @@ int main(int argc, char **argv)
--argc;
++argv;
opts_info = true;
noexec = true;
}
else if (!strcmp(argv[1], "-disasm")) {
--argc;
++argv;
opts_disasm = true;
noexec = true;
}
else if (!strcmp(argv[1], "-printdefs")) {
--argc;
++argv;
opts_printdefs = true;
noexec = true;
}
else if (!strcmp(argv[1], "-printfuns")) {
--argc;
++argv;
opts_printfuns = true;
noexec = true;
}
else if (!strcmp(argv[1], "-printfields")) {
--argc;
++argv;
opts_printfields = true;
noexec = true;
}
else if (!strcmp(argv[1], "-vector") ||
!strcmp(argv[1], "-string") ||
@ -885,8 +912,10 @@ int main(int argc, char **argv)
--argc;
++argv;
if (argc < 3)
if (argc < 3) {
usage();
exit(1);
}
p.value = argv[1];
vec_push(main_params, p);
@ -894,7 +923,10 @@ int main(int argc, char **argv)
++argv;
}
else
{
usage();
exit(1);
}
}
@ -913,12 +945,6 @@ int main(int argc, char **argv)
printf("Globals: %u\n", (unsigned int)vec_size(prog->globals));
}
for (i = 1; i < vec_size(prog->functions); ++i) {
const char *name = prog_getstring(prog, prog->functions[i].name);
/* printf("Found function: %s\n", name); */
if (!strcmp(name, "main"))
fnmain = (qcint)i;
}
if (opts_info) {
prog_delete(prog);
return 0;
@ -937,7 +963,7 @@ int main(int argc, char **argv)
((prog->defs[i].type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
}
}
else if (opts_printfields) {
if (opts_printfields) {
for (i = 0; i < vec_size(prog->fields); ++i) {
printf("Field: %8s %-16s at %u%s\n",
type_name[prog->fields[i].type],
@ -946,7 +972,7 @@ int main(int argc, char **argv)
((prog->fields[i].type & DEF_SAVEGLOBAL) ? " [SAVE]" : ""));
}
}
else if (opts_printfuns) {
if (opts_printfuns) {
for (i = 0; i < vec_size(prog->functions); ++i) {
int32_t a;
printf("Function: %-16s taking %i parameters:(",
@ -960,8 +986,12 @@ int main(int argc, char **argv)
prog->functions[i].locals);
}
}
else
{
if (!noexec) {
for (i = 1; i < vec_size(prog->functions); ++i) {
const char *name = prog_getstring(prog, prog->functions[i].name);
if (!strcmp(name, "main"))
fnmain = (qcint)i;
}
if (fnmain > 0)
{
prog_main_setparams(prog);