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better command line parsing - added -r option

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This commit is contained in:
bellard 2002-08-30 22:46:35 +00:00
parent d2115bfb27
commit 6dd6a026c3
1 changed files with 74 additions and 32 deletions
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106
tcc.c
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@ -7213,16 +7213,18 @@ void help(void)
" -llib link with dynamic or static library 'lib'\n"
" -shared generate a shared library\n"
" -static static linking\n"
" -r relocatable output\n"
);
}
int main(int argc, char **argv)
{
char *r, *outfile;
int optind, output_type, multiple_files, i;
int optind, output_type, multiple_files, i, reloc_output;
TCCState *s;
char **libraries;
int nb_libraries;
char **files;
int nb_files, nb_libraries, nb_objfiles;
char objfilename[1024];
s = tcc_new();
output_type = TCC_OUTPUT_MEMORY;
@ -7230,23 +7232,37 @@ int main(int argc, char **argv)
optind = 1;
outfile = NULL;
multiple_files = 0;
libraries = NULL;
files = NULL;
nb_files = 0;
nb_libraries = 0;
reloc_output = 0;
while (1) {
if (optind >= argc) {
if (nb_files == 0)
goto show_help;
else
break;
}
r = argv[optind++];
if (r[0] != '-') {
/* add a new file */
dynarray_add((void ***)&files, &nb_files, r);
if (!multiple_files) {
optind--;
/* argv[0] will be this file */
break;
}
} else if (r[1] == '-') {
/* '--' enables multiple files input and also ends several file input */
if (multiple_files) {
optind--; /* argv[0] will be '--' */
break;
}
multiple_files = 1;
} else if (r[1] == 'h' || r[1] == '?') {
show_help:
help();
return 1;
}
r = argv[optind];
if (r[0] != '-')
break;
optind++;
if (r[1] == '-') {
/* '--' enables multiple files input */
multiple_files = 1;
} else if (r[1] == 'h' || r[1] == '?') {
goto show_help;
} else if (r[1] == 'I') {
if (tcc_add_include_path(s, r + 2) < 0)
error("too many include paths");
@ -7267,7 +7283,8 @@ int main(int argc, char **argv)
/* set tcc utilities path (mainly for tcc development) */
tcc_lib_path = r + 2;
} else if (r[1] == 'l') {
dynarray_add((void ***)&libraries, &nb_libraries, r + 2);
dynarray_add((void ***)&files, &nb_files, r);
nb_libraries++;
} else if (!strcmp(r + 1, "bench")) {
do_bench = 1;
} else
@ -7291,36 +7308,61 @@ int main(int argc, char **argv)
goto show_help;
multiple_files = 1;
outfile = argv[optind++];
} else if (r[1] == 'r') {
/* generate a .o merging several output files */
reloc_output = 1;
output_type = TCC_OUTPUT_OBJ;
} else {
error("invalid option -- '%s'", r);
}
}
nb_objfiles = nb_files - nb_libraries;
/* if outfile provided without other options, we output an
executable */
if (outfile && output_type == TCC_OUTPUT_MEMORY)
output_type = TCC_OUTPUT_EXE;
tcc_set_output_type(s, output_type);
tcc_add_file(s, argv[optind]);
if (multiple_files) {
while ((optind + 1) < argc) {
optind++;
r = argv[optind];
if (r[0] == '-') {
if (r[1] != '-')
error("'--' expected");
break;
}
tcc_add_file(s, r);
/* check -c consistency : only single file handled. XXX: checks file type */
if (output_type == TCC_OUTPUT_OBJ && !reloc_output) {
/* accepts only a single input file */
if (nb_objfiles != 1)
error("cannot specify multiple files with -c");
if (nb_libraries != 0)
error("cannot specify libraries with -c");
}
/* compute default outfile name */
if (output_type != TCC_OUTPUT_MEMORY && !outfile) {
if (output_type == TCC_OUTPUT_OBJ && !reloc_output) {
char *ext;
/* add .o extension */
pstrcpy(objfilename, sizeof(objfilename) - 1, files[0]);
ext = strrchr(objfilename, '.');
if (!ext)
goto default_outfile;
strcpy(ext + 1, "o");
} else {
default_outfile:
pstrcpy(objfilename, sizeof(objfilename), "a.out");
}
outfile = objfilename;
}
/* add specified libraries */
for(i = 0; i < nb_libraries;i++) {
if (tcc_add_library(s, libraries[i]) < 0)
error("cannot find -l%s", libraries[i]);
tcc_set_output_type(s, output_type);
/* compile or add each files or library */
for(i = 0;i < nb_files; i++) {
const char *filename;
filename = files[i];
if (filename[0] == '-') {
if (tcc_add_library(s, filename + 2) < 0)
error("cannot find %s", filename);
} else {
tcc_add_file(s, filename);
}
}
if (do_bench) {