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Implement -include cmdline option

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This option includes a file as if '#include "file"' is the first
line of compiled files.  It's processed after all -D/-U options
and is processed per input file.
This commit is contained in:
Michael Matz 2016-06-27 16:40:00 +02:00
parent 21d2b71b5c
commit 9285149548
3 changed files with 24 additions and 0 deletions
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6
libtcc.c
View File

@ -1518,6 +1518,7 @@ enum {
TCC_OPTION_f,
TCC_OPTION_isystem,
TCC_OPTION_iwithprefix,
TCC_OPTION_include,
TCC_OPTION_nostdinc,
TCC_OPTION_nostdlib,
TCC_OPTION_print_search_dirs,
@ -1582,6 +1583,7 @@ static const TCCOption tcc_options[] = {
{ "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP },
{ "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG },
{ "iwithprefix", TCC_OPTION_iwithprefix, TCC_OPTION_HAS_ARG },
{ "include", TCC_OPTION_include, TCC_OPTION_HAS_ARG },
{ "nostdinc", TCC_OPTION_nostdinc, 0 },
{ "nostdlib", TCC_OPTION_nostdlib, 0 },
{ "print-search-dirs", TCC_OPTION_print_search_dirs, 0 },
@ -1789,6 +1791,10 @@ PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
snprintf(buf, sizeof buf, "{B}/%s", optarg);
tcc_add_sysinclude_path(s, buf);
break;
case TCC_OPTION_include:
dynarray_add((void ***)&s->cmd_include_files,
&s->nb_cmd_include_files, tcc_strdup(optarg));
break;
case TCC_OPTION_nostdinc:
s->nostdinc = 1;
break;

4
tcc.h
View File

@ -661,6 +661,10 @@ struct TCCState {
char **crt_paths;
int nb_crt_paths;
/* -include files */
char **cmd_include_files;
int nb_cmd_include_files;
/* error handling */
void *error_opaque;
void (*error_func)(void *opaque, const char *msg);

14
tccpp.c
View File

@ -3480,6 +3480,20 @@ ST_FUNC void preprocess_start(TCCState *s1)
s1->dollars_in_identifiers ? IS_ID : 0;
isidnum_table['.' - CH_EOF] =
(parse_flags & PARSE_FLAG_ASM_FILE) ? IS_ID : 0;
if (s1->nb_cmd_include_files) {
CString cstr;
int i;
cstr_new(&cstr);
for (i = 0; i < s1->nb_cmd_include_files; i++) {
cstr_cat(&cstr, "#include \"", -1);
cstr_cat(&cstr, s1->cmd_include_files[i], -1);
cstr_cat(&cstr, "\"\n", -1);
}
*s1->include_stack_ptr++ = file;
tcc_open_bf(s1, "<command line>", cstr.size);
memcpy(file->buffer, cstr.data, cstr.size);
cstr_free(&cstr);
}
}
ST_FUNC void tccpp_new(TCCState *s)