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improved usage information.

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This commit is contained in:
Kelvin Sherlock 2022-12-15 21:11:38 -05:00
parent 42347e4d40
commit 65d373be25
1 changed files with 24 additions and 8 deletions
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32
link.cpp
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@ -1647,12 +1647,25 @@ bool parse_ft(const std::string &s) {
} }
void help() {
exit(0);
}
void usage() {
exit(EX_USAGE); void usage(int rv) {
fputs(
"wdclink [flags] file ...\n\n"
"Flags:\n"
" -h show usage\n"
" -v be verbose\n"
" -X inhibit ExpressLoad segment\n"
" -C inhibit SUPER records\n"
" -S add stack segment\n"
" -1 generate version 1 OMF File\n"
" -o file specify outfile name\n"
" -l library specify library\n"
" -L path specify library path\n"
" -t xx[:xxxx] specify file type\n",
stdout
);
exit(rv);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
@ -1661,6 +1674,8 @@ int main(int argc, char **argv) {
int c; int c;
while ((c = getopt(argc, argv, "vCXL:l:o:t:")) != -1) { while ((c = getopt(argc, argv, "vCXL:l:o:t:")) != -1) {
switch(c) { switch(c) {
case 'h': usage(0); break;
case 'v': flags.v = true; break; case 'v': flags.v = true; break;
case 'X': flags.X = true; break; case 'X': flags.X = true; break;
case 'C': flags.C = true; break; case 'C': flags.C = true; break;
@ -1676,7 +1691,6 @@ int main(int argc, char **argv) {
flags.L.emplace_back(std::move(tmp)); flags.L.emplace_back(std::move(tmp));
break; break;
} }
case 'h': help(); break;
case 't': { case 't': {
// -t xx[:xxxx] -- set file/auxtype. // -t xx[:xxxx] -- set file/auxtype.
if (!parse_ft(optarg)) { if (!parse_ft(optarg)) {
@ -1685,17 +1699,19 @@ int main(int argc, char **argv) {
break; break;
} }
case ':': case ':':
case '?': case '?':
default: default:
usage(); usage(EX_USAGE);
break;
} }
} }
argc -= optind; argc -= optind;
argv += optind; argv += optind;
if (argc == 0) usage(); if (argc == 0) usage(EX_USAGE);
init(); init();