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Accept standard input as an inputstream (Hanzac Chen)

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grischka 2008-03-31 18:42:56 +00:00
parent cd24bd05b4
commit 4d9aaacc85
2 changed files with 21 additions and 12 deletions
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16
tcc-doc.texi
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@ -94,9 +94,11 @@ the @code{main()} of a.c.
@item @samp{tcc a.c -run b.c arg1}
Compile @file{a.c} and @file{b.c}, link them together and execute them. arg1 is given
as first argument to the @code{main()} of the resulting program. Because
multiple C files are specified, @option{--} are necessary to clearly separate the
program arguments from the TCC options.
as first argument to the @code{main()} of the resulting program.
@ignore
Because multiple C files are specified, @option{--} are necessary to clearly
separate the program arguments from the TCC options.
@end ignore
@item @samp{tcc -o myprog a.c b.c}
Compile @file{a.c} and @file{b.c}, link them and generate the executable @file{myprog}.
@ -135,6 +137,13 @@ int main()
return 0;
@}
@end example
TCC can read C source code from @emph{standard input} when @option{-} is used in
place of @option{infile}. Example:
@example
echo 'main(){puts("hello");}' | tcc -run -
@end example
@c man end
@section Option summary
@ -160,7 +169,6 @@ Set the path where the tcc internal libraries can be found (default is
Output compilation statistics.
@item -run source [args...]
Compile file @var{source} and run it with the command line arguments
@var{args}. In order to be able to give more than one argument to a
script, several TCC options can be given @emph{after} the

17
tcc.c
View file

@ -1956,14 +1956,13 @@ BufferedFile *tcc_open(TCCState *s1, const char *filename)
int fd;
BufferedFile *bf;
fd = open(filename, O_RDONLY | O_BINARY);
if (strcmp(filename, "-") == 0)
fd = 0, filename = "stdin";
else
fd = open(filename, O_RDONLY | O_BINARY);
if (fd < 0)
return NULL;
bf = tcc_malloc(sizeof(BufferedFile));
if (!bf) {
close(fd);
return NULL;
}
bf->fd = fd;
bf->buf_ptr = bf->buffer;
bf->buf_end = bf->buffer;
@ -10730,7 +10729,7 @@ int parse_args(TCCState *s, int argc, char **argv)
break;
}
r = argv[optind++];
if (r[0] != '-') {
if (r[0] != '-' || r[1] == '\0') {
/* add a new file */
dynarray_add((void ***)&files, &nb_files, r);
if (!multiple_files) {
@ -10982,7 +10981,9 @@ int main(int argc, char **argv)
if (!outfile) {
/* compute default outfile name */
char *ext;
pstrcpy(objfilename, sizeof(objfilename), tcc_basename(files[0]));
const char *name =
strcmp(files[0], "-") == 0 ? "a" : tcc_basename(files[0]);
pstrcpy(objfilename, sizeof(objfilename), name);
ext = tcc_fileextension(objfilename);
#ifdef TCC_TARGET_PE
if (output_type == TCC_OUTPUT_DLL)
@ -11015,7 +11016,7 @@ int main(int argc, char **argv)
if (tcc_add_file_internal(s, filename,
AFF_PRINT_ERROR | AFF_PREPROCESS) < 0)
ret = 1;
} else if (filename[0] == '-') {
} else if (filename[0] == '-' && filename[1]) {
if (tcc_add_library(s, filename + 2) < 0)
error("cannot find %s", filename);
} else {