2020-10-07 14:11:16 +03:00
|
|
|
#include "chibicc.h"
|
2019-08-03 09:36:43 +03:00
|
|
|
|
2020-08-25 08:47:43 +03:00
|
|
|
typedef enum {
|
|
|
|
FILE_NONE, FILE_C, FILE_ASM, FILE_OBJ, FILE_AR, FILE_DSO,
|
|
|
|
} FileType;
|
2020-09-19 15:43:35 +03:00
|
|
|
|
2020-09-25 17:18:32 +03:00
|
|
|
StringArray include_paths;
|
2020-08-19 11:24:16 +03:00
|
|
|
bool opt_fcommon = true;
|
2020-09-08 12:50:40 +03:00
|
|
|
bool opt_fpic;
|
2020-09-25 17:18:32 +03:00
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
static FileType opt_x;
|
2020-09-19 14:53:13 +03:00
|
|
|
static StringArray opt_include;
|
2020-08-20 15:37:02 +03:00
|
|
|
static bool opt_E;
|
2020-09-03 13:34:07 +03:00
|
|
|
static bool opt_M;
|
2020-08-18 06:42:46 +03:00
|
|
|
static bool opt_MD;
|
2020-09-19 15:03:19 +03:00
|
|
|
static bool opt_MMD;
|
2020-08-18 06:30:30 +03:00
|
|
|
static bool opt_MP;
|
2020-10-08 08:34:23 +03:00
|
|
|
static bool opt_S;
|
2020-09-19 14:36:26 +03:00
|
|
|
static bool opt_c;
|
2020-08-15 16:30:28 +03:00
|
|
|
static bool opt_cc1;
|
|
|
|
static bool opt_hash_hash_hash;
|
2020-10-09 09:06:35 +03:00
|
|
|
static bool opt_static;
|
2020-10-09 09:09:17 +03:00
|
|
|
static bool opt_shared;
|
2020-08-18 06:27:27 +03:00
|
|
|
static char *opt_MF;
|
2020-08-18 06:38:21 +03:00
|
|
|
static char *opt_MT;
|
2020-05-08 14:44:25 +03:00
|
|
|
static char *opt_o;
|
|
|
|
|
2020-09-19 15:00:04 +03:00
|
|
|
static StringArray ld_extra_args;
|
2020-09-19 15:03:19 +03:00
|
|
|
static StringArray std_include_paths;
|
2020-09-19 15:00:04 +03:00
|
|
|
|
2020-09-03 13:24:23 +03:00
|
|
|
char *base_file;
|
2020-08-18 03:16:57 +03:00
|
|
|
static char *output_file;
|
|
|
|
|
|
|
|
static StringArray input_paths;
|
2020-10-08 08:34:23 +03:00
|
|
|
static StringArray tmpfiles;
|
2020-05-08 14:44:25 +03:00
|
|
|
|
|
|
|
static void usage(int status) {
|
|
|
|
fprintf(stderr, "chibicc [ -o <path> ] <file>\n");
|
|
|
|
exit(status);
|
|
|
|
}
|
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
static bool take_arg(char *arg) {
|
2020-08-18 06:38:21 +03:00
|
|
|
char *x[] = {"-o", "-I", "-idirafter", "-include", "-x", "-MF", "-MT"};
|
2020-09-25 17:18:32 +03:00
|
|
|
|
|
|
|
for (int i = 0; i < sizeof(x) / sizeof(*x); i++)
|
|
|
|
if (!strcmp(arg, x[i]))
|
|
|
|
return true;
|
|
|
|
return false;
|
2020-08-18 03:16:57 +03:00
|
|
|
}
|
|
|
|
|
2020-09-19 14:42:21 +03:00
|
|
|
static void add_default_include_paths(char *argv0) {
|
|
|
|
// We expect that chibicc-specific include files are installed
|
|
|
|
// to ./include relative to argv[0].
|
|
|
|
strarray_push(&include_paths, format("%s/include", dirname(strdup(argv0))));
|
|
|
|
|
|
|
|
// Add standard include paths.
|
|
|
|
strarray_push(&include_paths, "/usr/local/include");
|
|
|
|
strarray_push(&include_paths, "/usr/include/x86_64-linux-gnu");
|
|
|
|
strarray_push(&include_paths, "/usr/include");
|
2020-09-19 15:03:19 +03:00
|
|
|
|
|
|
|
// Keep a copy of the standard include paths for -MMD option.
|
|
|
|
for (int i = 0; i < include_paths.len; i++)
|
|
|
|
strarray_push(&std_include_paths, include_paths.data[i]);
|
2020-09-19 14:42:21 +03:00
|
|
|
}
|
|
|
|
|
2020-08-27 19:34:10 +03:00
|
|
|
static void define(char *str) {
|
|
|
|
char *eq = strchr(str, '=');
|
|
|
|
if (eq)
|
|
|
|
define_macro(strndup(str, eq - str), eq + 1);
|
|
|
|
else
|
|
|
|
define_macro(str, "1");
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
static FileType parse_opt_x(char *s) {
|
|
|
|
if (!strcmp(s, "c"))
|
|
|
|
return FILE_C;
|
|
|
|
if (!strcmp(s, "assembler"))
|
|
|
|
return FILE_ASM;
|
|
|
|
if (!strcmp(s, "none"))
|
|
|
|
return FILE_NONE;
|
|
|
|
error("<command line>: unknown argument for -x: %s", s);
|
|
|
|
}
|
|
|
|
|
2020-09-02 18:32:47 +03:00
|
|
|
static char *quote_makefile(char *s) {
|
|
|
|
char *buf = calloc(1, strlen(s) * 2 + 1);
|
|
|
|
|
|
|
|
for (int i = 0, j = 0; s[i]; i++) {
|
|
|
|
switch (s[i]) {
|
|
|
|
case '$':
|
|
|
|
buf[j++] = '$';
|
|
|
|
buf[j++] = '$';
|
|
|
|
break;
|
|
|
|
case '#':
|
|
|
|
buf[j++] = '\\';
|
|
|
|
buf[j++] = '#';
|
|
|
|
break;
|
|
|
|
case ' ':
|
|
|
|
case '\t':
|
|
|
|
for (int k = i - 1; k >= 0 && s[k] == '\\'; k--)
|
|
|
|
buf[j++] = '\\';
|
|
|
|
buf[j++] = '\\';
|
|
|
|
buf[j++] = s[i];
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
buf[j++] = s[i];
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
|
2020-05-08 14:44:25 +03:00
|
|
|
static void parse_args(int argc, char **argv) {
|
2020-08-18 03:16:57 +03:00
|
|
|
// Make sure that all command line options that take an argument
|
|
|
|
// have an argument.
|
|
|
|
for (int i = 1; i < argc; i++)
|
|
|
|
if (take_arg(argv[i]))
|
|
|
|
if (!argv[++i])
|
|
|
|
usage(1);
|
|
|
|
|
2020-09-19 14:50:36 +03:00
|
|
|
StringArray idirafter = {};
|
|
|
|
|
2020-05-08 14:44:25 +03:00
|
|
|
for (int i = 1; i < argc; i++) {
|
2020-08-15 16:30:28 +03:00
|
|
|
if (!strcmp(argv[i], "-###")) {
|
|
|
|
opt_hash_hash_hash = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strcmp(argv[i], "-cc1")) {
|
|
|
|
opt_cc1 = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-05-08 14:44:25 +03:00
|
|
|
if (!strcmp(argv[i], "--help"))
|
|
|
|
usage(0);
|
|
|
|
|
|
|
|
if (!strcmp(argv[i], "-o")) {
|
2020-08-18 03:16:57 +03:00
|
|
|
opt_o = argv[++i];
|
2020-05-08 14:44:25 +03:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strncmp(argv[i], "-o", 2)) {
|
|
|
|
opt_o = argv[i] + 2;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-10-08 08:34:23 +03:00
|
|
|
if (!strcmp(argv[i], "-S")) {
|
|
|
|
opt_S = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-19 11:24:16 +03:00
|
|
|
if (!strcmp(argv[i], "-fcommon")) {
|
|
|
|
opt_fcommon = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strcmp(argv[i], "-fno-common")) {
|
|
|
|
opt_fcommon = false;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
if (!strcmp(argv[i], "-c")) {
|
|
|
|
opt_c = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-20 15:37:02 +03:00
|
|
|
if (!strcmp(argv[i], "-E")) {
|
|
|
|
opt_E = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-25 17:18:32 +03:00
|
|
|
if (!strncmp(argv[i], "-I", 2)) {
|
|
|
|
strarray_push(&include_paths, argv[i] + 2);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-27 19:34:10 +03:00
|
|
|
if (!strcmp(argv[i], "-D")) {
|
|
|
|
define(argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strncmp(argv[i], "-D", 2)) {
|
|
|
|
define(argv[i] + 2);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 05:09:32 +03:00
|
|
|
if (!strcmp(argv[i], "-U")) {
|
|
|
|
undef_macro(argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strncmp(argv[i], "-U", 2)) {
|
|
|
|
undef_macro(argv[i] + 2);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:53:13 +03:00
|
|
|
if (!strcmp(argv[i], "-include")) {
|
|
|
|
strarray_push(&opt_include, argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
if (!strcmp(argv[i], "-x")) {
|
|
|
|
opt_x = parse_opt_x(argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strncmp(argv[i], "-x", 2)) {
|
|
|
|
opt_x = parse_opt_x(argv[i] + 2);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:09:17 +03:00
|
|
|
if (!strncmp(argv[i], "-l", 2) || !strncmp(argv[i], "-Wl,", 4)) {
|
2020-08-25 05:02:38 +03:00
|
|
|
strarray_push(&input_paths, argv[i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:00:04 +03:00
|
|
|
if (!strcmp(argv[i], "-s")) {
|
|
|
|
strarray_push(&ld_extra_args, "-s");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-03 13:34:07 +03:00
|
|
|
if (!strcmp(argv[i], "-M")) {
|
|
|
|
opt_M = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 06:27:27 +03:00
|
|
|
if (!strcmp(argv[i], "-MF")) {
|
|
|
|
opt_MF = argv[++i];
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 06:30:30 +03:00
|
|
|
if (!strcmp(argv[i], "-MP")) {
|
|
|
|
opt_MP = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 06:38:21 +03:00
|
|
|
if (!strcmp(argv[i], "-MT")) {
|
|
|
|
if (opt_MT == NULL)
|
|
|
|
opt_MT = argv[++i];
|
|
|
|
else
|
|
|
|
opt_MT = format("%s %s", opt_MT, argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 06:42:46 +03:00
|
|
|
if (!strcmp(argv[i], "-MD")) {
|
|
|
|
opt_MD = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-02 18:32:47 +03:00
|
|
|
if (!strcmp(argv[i], "-MQ")) {
|
|
|
|
if (opt_MT == NULL)
|
|
|
|
opt_MT = quote_makefile(argv[++i]);
|
|
|
|
else
|
|
|
|
opt_MT = format("%s %s", opt_MT, quote_makefile(argv[++i]));
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:03:19 +03:00
|
|
|
if (!strcmp(argv[i], "-MMD")) {
|
|
|
|
opt_MD = opt_MMD = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-08 12:50:40 +03:00
|
|
|
if (!strcmp(argv[i], "-fpic") || !strcmp(argv[i], "-fPIC")) {
|
|
|
|
opt_fpic = true;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
if (!strcmp(argv[i], "-cc1-input")) {
|
|
|
|
base_file = argv[++i];
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strcmp(argv[i], "-cc1-output")) {
|
|
|
|
output_file = argv[++i];
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:50:36 +03:00
|
|
|
if (!strcmp(argv[i], "-idirafter")) {
|
|
|
|
strarray_push(&idirafter, argv[i++]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-10-09 09:06:35 +03:00
|
|
|
if (!strcmp(argv[i], "-static")) {
|
|
|
|
opt_static = true;
|
|
|
|
strarray_push(&ld_extra_args, "-static");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-10-09 09:09:17 +03:00
|
|
|
if (!strcmp(argv[i], "-shared")) {
|
|
|
|
opt_shared = true;
|
|
|
|
strarray_push(&ld_extra_args, "-shared");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-13 09:34:58 +03:00
|
|
|
if (!strcmp(argv[i], "-L")) {
|
|
|
|
strarray_push(&ld_extra_args, "-L");
|
|
|
|
strarray_push(&ld_extra_args, argv[++i]);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!strncmp(argv[i], "-L", 2)) {
|
|
|
|
strarray_push(&ld_extra_args, "-L");
|
|
|
|
strarray_push(&ld_extra_args, argv[i] + 2);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-01 19:30:29 +03:00
|
|
|
if (!strcmp(argv[i], "-hashmap-test")) {
|
|
|
|
hashmap_test();
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
2020-08-18 05:46:32 +03:00
|
|
|
// These options are ignored for now.
|
|
|
|
if (!strncmp(argv[i], "-O", 2) ||
|
|
|
|
!strncmp(argv[i], "-W", 2) ||
|
|
|
|
!strncmp(argv[i], "-g", 2) ||
|
|
|
|
!strncmp(argv[i], "-std=", 5) ||
|
|
|
|
!strcmp(argv[i], "-ffreestanding") ||
|
|
|
|
!strcmp(argv[i], "-fno-builtin") ||
|
|
|
|
!strcmp(argv[i], "-fno-omit-frame-pointer") ||
|
|
|
|
!strcmp(argv[i], "-fno-stack-protector") ||
|
|
|
|
!strcmp(argv[i], "-fno-strict-aliasing") ||
|
|
|
|
!strcmp(argv[i], "-m64") ||
|
|
|
|
!strcmp(argv[i], "-mno-red-zone") ||
|
|
|
|
!strcmp(argv[i], "-w"))
|
|
|
|
continue;
|
|
|
|
|
2020-05-08 14:44:25 +03:00
|
|
|
if (argv[i][0] == '-' && argv[i][1] != '\0')
|
|
|
|
error("unknown argument: %s", argv[i]);
|
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
strarray_push(&input_paths, argv[i]);
|
2020-05-08 14:44:25 +03:00
|
|
|
}
|
|
|
|
|
2020-09-19 14:50:36 +03:00
|
|
|
for (int i = 0; i < idirafter.len; i++)
|
|
|
|
strarray_push(&include_paths, idirafter.data[i]);
|
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
if (input_paths.len == 0)
|
2020-05-08 14:44:25 +03:00
|
|
|
error("no input files");
|
2020-09-28 16:59:52 +03:00
|
|
|
|
|
|
|
// -E implies that the input is the C macro language.
|
|
|
|
if (opt_E)
|
|
|
|
opt_x = FILE_C;
|
2020-05-08 14:44:25 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
static FILE *open_file(char *path) {
|
|
|
|
if (!path || strcmp(path, "-") == 0)
|
|
|
|
return stdout;
|
|
|
|
|
|
|
|
FILE *out = fopen(path, "w");
|
|
|
|
if (!out)
|
|
|
|
error("cannot open output file: %s: %s", path, strerror(errno));
|
|
|
|
return out;
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
static bool endswith(char *p, char *q) {
|
|
|
|
int len1 = strlen(p);
|
|
|
|
int len2 = strlen(q);
|
|
|
|
return (len1 >= len2) && !strcmp(p + len1 - len2, q);
|
|
|
|
}
|
|
|
|
|
2020-10-08 08:34:23 +03:00
|
|
|
// Replace file extension
|
|
|
|
static char *replace_extn(char *tmpl, char *extn) {
|
|
|
|
char *filename = basename(strdup(tmpl));
|
|
|
|
char *dot = strrchr(filename, '.');
|
|
|
|
if (dot)
|
|
|
|
*dot = '\0';
|
|
|
|
return format("%s%s", filename, extn);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void cleanup(void) {
|
|
|
|
for (int i = 0; i < tmpfiles.len; i++)
|
|
|
|
unlink(tmpfiles.data[i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *create_tmpfile(void) {
|
|
|
|
char *path = strdup("/tmp/chibicc-XXXXXX");
|
|
|
|
int fd = mkstemp(path);
|
|
|
|
if (fd == -1)
|
|
|
|
error("mkstemp failed: %s", strerror(errno));
|
|
|
|
close(fd);
|
|
|
|
|
|
|
|
strarray_push(&tmpfiles, path);
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
2020-08-15 16:30:28 +03:00
|
|
|
static void run_subprocess(char **argv) {
|
|
|
|
// If -### is given, dump the subprocess's command line.
|
|
|
|
if (opt_hash_hash_hash) {
|
|
|
|
fprintf(stderr, "%s", argv[0]);
|
|
|
|
for (int i = 1; argv[i]; i++)
|
|
|
|
fprintf(stderr, " %s", argv[i]);
|
|
|
|
fprintf(stderr, "\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fork() == 0) {
|
|
|
|
// Child process. Run a new command.
|
|
|
|
execvp(argv[0], argv);
|
|
|
|
fprintf(stderr, "exec failed: %s: %s\n", argv[0], strerror(errno));
|
|
|
|
_exit(1);
|
|
|
|
}
|
2019-08-03 09:36:43 +03:00
|
|
|
|
2020-08-15 16:30:28 +03:00
|
|
|
// Wait for the child process to finish.
|
|
|
|
int status;
|
|
|
|
while (wait(&status) > 0);
|
|
|
|
if (status != 0)
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2020-10-08 08:34:23 +03:00
|
|
|
static void run_cc1(int argc, char **argv, char *input, char *output) {
|
2020-08-15 16:30:28 +03:00
|
|
|
char **args = calloc(argc + 10, sizeof(char *));
|
|
|
|
memcpy(args, argv, argc * sizeof(char *));
|
|
|
|
args[argc++] = "-cc1";
|
2020-10-08 08:34:23 +03:00
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
if (input) {
|
|
|
|
args[argc++] = "-cc1-input";
|
2020-10-08 08:34:23 +03:00
|
|
|
args[argc++] = input;
|
2020-08-18 03:16:57 +03:00
|
|
|
}
|
2020-10-08 08:34:23 +03:00
|
|
|
|
|
|
|
if (output) {
|
2020-08-18 03:16:57 +03:00
|
|
|
args[argc++] = "-cc1-output";
|
2020-10-08 08:34:23 +03:00
|
|
|
args[argc++] = output;
|
|
|
|
}
|
|
|
|
|
2020-08-15 16:30:28 +03:00
|
|
|
run_subprocess(args);
|
|
|
|
}
|
|
|
|
|
2020-08-20 15:37:02 +03:00
|
|
|
// Print tokens to stdout. Used for -E.
|
|
|
|
static void print_tokens(Token *tok) {
|
|
|
|
FILE *out = open_file(opt_o ? opt_o : "-");
|
|
|
|
|
|
|
|
int line = 1;
|
|
|
|
for (; tok->kind != TK_EOF; tok = tok->next) {
|
|
|
|
if (line > 1 && tok->at_bol)
|
|
|
|
fprintf(out, "\n");
|
2020-08-18 04:45:03 +03:00
|
|
|
if (tok->has_space && !tok->at_bol)
|
|
|
|
fprintf(out, " ");
|
|
|
|
fprintf(out, "%.*s", tok->len, tok->loc);
|
2020-08-20 15:37:02 +03:00
|
|
|
line++;
|
|
|
|
}
|
|
|
|
fprintf(out, "\n");
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:03:19 +03:00
|
|
|
static bool in_std_include_path(char *path) {
|
|
|
|
for (int i = 0; i < std_include_paths.len; i++) {
|
|
|
|
char *dir = std_include_paths.data[i];
|
|
|
|
int len = strlen(dir);
|
|
|
|
if (strncmp(dir, path, len) == 0 && path[len] == '/')
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2020-09-03 13:34:07 +03:00
|
|
|
// If -M options is given, the compiler write a list of input files to
|
|
|
|
// stdout in a format that "make" command can read. This feature is
|
|
|
|
// used to automate file dependency management.
|
|
|
|
static void print_dependencies(void) {
|
2020-08-18 06:27:27 +03:00
|
|
|
char *path;
|
|
|
|
if (opt_MF)
|
|
|
|
path = opt_MF;
|
2020-08-18 06:42:46 +03:00
|
|
|
else if (opt_MD)
|
|
|
|
path = replace_extn(opt_o ? opt_o : base_file, ".d");
|
2020-08-18 06:27:27 +03:00
|
|
|
else if (opt_o)
|
|
|
|
path = opt_o;
|
|
|
|
else
|
|
|
|
path = "-";
|
|
|
|
|
|
|
|
FILE *out = open_file(path);
|
2020-09-02 18:32:47 +03:00
|
|
|
if (opt_MT)
|
|
|
|
fprintf(out, "%s:", opt_MT);
|
|
|
|
else
|
|
|
|
fprintf(out, "%s:", quote_makefile(replace_extn(base_file, ".o")));
|
2020-09-03 13:34:07 +03:00
|
|
|
|
|
|
|
File **files = get_input_files();
|
|
|
|
|
2020-09-19 15:03:19 +03:00
|
|
|
for (int i = 0; files[i]; i++) {
|
|
|
|
if (opt_MMD && in_std_include_path(files[i]->name))
|
|
|
|
continue;
|
2020-09-03 13:34:07 +03:00
|
|
|
fprintf(out, " \\\n %s", files[i]->name);
|
2020-09-19 15:03:19 +03:00
|
|
|
}
|
|
|
|
|
2020-09-03 13:34:07 +03:00
|
|
|
fprintf(out, "\n\n");
|
2020-08-18 06:30:30 +03:00
|
|
|
|
2020-09-19 15:03:19 +03:00
|
|
|
if (opt_MP) {
|
|
|
|
for (int i = 1; files[i]; i++) {
|
|
|
|
if (opt_MMD && in_std_include_path(files[i]->name))
|
|
|
|
continue;
|
2020-09-02 18:32:47 +03:00
|
|
|
fprintf(out, "%s:\n\n", quote_makefile(files[i]->name));
|
2020-09-19 15:03:19 +03:00
|
|
|
}
|
|
|
|
}
|
2020-09-03 13:34:07 +03:00
|
|
|
}
|
|
|
|
|
2020-09-19 14:53:13 +03:00
|
|
|
static Token *must_tokenize_file(char *path) {
|
|
|
|
Token *tok = tokenize_file(path);
|
2020-09-03 13:24:23 +03:00
|
|
|
if (!tok)
|
2020-09-19 14:53:13 +03:00
|
|
|
error("%s: %s", path, strerror(errno));
|
|
|
|
return tok;
|
|
|
|
}
|
2020-09-03 13:24:23 +03:00
|
|
|
|
2020-09-19 14:53:13 +03:00
|
|
|
static Token *append_tokens(Token *tok1, Token *tok2) {
|
|
|
|
if (!tok1 || tok1->kind == TK_EOF)
|
|
|
|
return tok2;
|
|
|
|
|
|
|
|
Token *t = tok1;
|
|
|
|
while (t->next->kind != TK_EOF)
|
|
|
|
t = t->next;
|
|
|
|
t->next = tok2;
|
|
|
|
return tok1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void cc1(void) {
|
|
|
|
Token *tok = NULL;
|
|
|
|
|
|
|
|
// Process -include option
|
|
|
|
for (int i = 0; i < opt_include.len; i++) {
|
|
|
|
char *incl = opt_include.data[i];
|
|
|
|
|
|
|
|
char *path;
|
|
|
|
if (file_exists(incl)) {
|
|
|
|
path = incl;
|
|
|
|
} else {
|
|
|
|
path = search_include_paths(incl);
|
|
|
|
if (!path)
|
|
|
|
error("-include: %s: %s", incl, strerror(errno));
|
|
|
|
}
|
|
|
|
|
|
|
|
Token *tok2 = must_tokenize_file(path);
|
|
|
|
tok = append_tokens(tok, tok2);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tokenize and parse.
|
|
|
|
Token *tok2 = must_tokenize_file(base_file);
|
|
|
|
tok = append_tokens(tok, tok2);
|
2020-08-18 03:41:59 +03:00
|
|
|
tok = preprocess(tok);
|
2020-08-20 15:37:02 +03:00
|
|
|
|
2020-08-18 06:42:46 +03:00
|
|
|
// If -M or -MD are given, print file dependencies.
|
|
|
|
if (opt_M || opt_MD) {
|
2020-09-03 13:34:07 +03:00
|
|
|
print_dependencies();
|
2020-08-18 06:42:46 +03:00
|
|
|
if (opt_M)
|
|
|
|
return;
|
2020-09-03 13:34:07 +03:00
|
|
|
}
|
|
|
|
|
2020-08-20 15:37:02 +03:00
|
|
|
// If -E is given, print out preprocessed C code as a result.
|
|
|
|
if (opt_E) {
|
|
|
|
print_tokens(tok);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2020-09-04 11:58:53 +03:00
|
|
|
Obj *prog = parse(tok);
|
2020-10-07 14:12:19 +03:00
|
|
|
|
2020-08-18 05:45:59 +03:00
|
|
|
// Open a temporary output buffer.
|
|
|
|
char *buf;
|
|
|
|
size_t buflen;
|
|
|
|
FILE *output_buf = open_memstream(&buf, &buflen);
|
|
|
|
|
2020-10-07 14:12:19 +03:00
|
|
|
// Traverse the AST to emit assembly.
|
2020-08-18 05:45:59 +03:00
|
|
|
codegen(prog, output_buf);
|
|
|
|
fclose(output_buf);
|
|
|
|
|
|
|
|
// Write the asembly text to a file.
|
2020-08-18 03:16:57 +03:00
|
|
|
FILE *out = open_file(output_file);
|
2020-08-18 05:45:59 +03:00
|
|
|
fwrite(buf, buflen, 1, out);
|
|
|
|
fclose(out);
|
2020-08-15 16:30:28 +03:00
|
|
|
}
|
|
|
|
|
2020-10-08 08:34:23 +03:00
|
|
|
static void assemble(char *input, char *output) {
|
|
|
|
char *cmd[] = {"as", "-c", input, "-o", output, NULL};
|
|
|
|
run_subprocess(cmd);
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
static char *find_file(char *pattern) {
|
|
|
|
char *path = NULL;
|
|
|
|
glob_t buf = {};
|
|
|
|
glob(pattern, 0, NULL, &buf);
|
|
|
|
if (buf.gl_pathc > 0)
|
|
|
|
path = strdup(buf.gl_pathv[buf.gl_pathc - 1]);
|
|
|
|
globfree(&buf);
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Returns true if a given file exists.
|
2020-08-30 12:57:20 +03:00
|
|
|
bool file_exists(char *path) {
|
2020-09-19 14:36:26 +03:00
|
|
|
struct stat st;
|
|
|
|
return !stat(path, &st);
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *find_libpath(void) {
|
|
|
|
if (file_exists("/usr/lib/x86_64-linux-gnu/crti.o"))
|
|
|
|
return "/usr/lib/x86_64-linux-gnu";
|
|
|
|
if (file_exists("/usr/lib64/crti.o"))
|
|
|
|
return "/usr/lib64";
|
|
|
|
error("library path is not found");
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *find_gcc_libpath(void) {
|
|
|
|
char *paths[] = {
|
|
|
|
"/usr/lib/gcc/x86_64-linux-gnu/*/crtbegin.o",
|
|
|
|
"/usr/lib/gcc/x86_64-pc-linux-gnu/*/crtbegin.o", // For Gentoo
|
|
|
|
"/usr/lib/gcc/x86_64-redhat-linux/*/crtbegin.o", // For Fedora
|
|
|
|
};
|
|
|
|
|
|
|
|
for (int i = 0; i < sizeof(paths) / sizeof(*paths); i++) {
|
|
|
|
char *path = find_file(paths[i]);
|
|
|
|
if (path)
|
|
|
|
return dirname(path);
|
|
|
|
}
|
|
|
|
|
|
|
|
error("gcc library path is not found");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void run_linker(StringArray *inputs, char *output) {
|
|
|
|
StringArray arr = {};
|
|
|
|
|
|
|
|
strarray_push(&arr, "ld");
|
|
|
|
strarray_push(&arr, "-o");
|
|
|
|
strarray_push(&arr, output);
|
|
|
|
strarray_push(&arr, "-m");
|
|
|
|
strarray_push(&arr, "elf_x86_64");
|
|
|
|
|
|
|
|
char *libpath = find_libpath();
|
|
|
|
char *gcc_libpath = find_gcc_libpath();
|
|
|
|
|
2020-10-09 09:09:17 +03:00
|
|
|
if (opt_shared) {
|
|
|
|
strarray_push(&arr, format("%s/crti.o", libpath));
|
|
|
|
strarray_push(&arr, format("%s/crtbeginS.o", gcc_libpath));
|
|
|
|
} else {
|
|
|
|
strarray_push(&arr, format("%s/crt1.o", libpath));
|
|
|
|
strarray_push(&arr, format("%s/crti.o", libpath));
|
|
|
|
strarray_push(&arr, format("%s/crtbegin.o", gcc_libpath));
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
strarray_push(&arr, format("-L%s", gcc_libpath));
|
2020-10-09 09:06:35 +03:00
|
|
|
strarray_push(&arr, "-L/usr/lib/x86_64-linux-gnu");
|
2020-09-19 14:36:26 +03:00
|
|
|
strarray_push(&arr, "-L/usr/lib64");
|
|
|
|
strarray_push(&arr, "-L/lib64");
|
|
|
|
strarray_push(&arr, "-L/usr/lib/x86_64-linux-gnu");
|
|
|
|
strarray_push(&arr, "-L/usr/lib/x86_64-pc-linux-gnu");
|
|
|
|
strarray_push(&arr, "-L/usr/lib/x86_64-redhat-linux");
|
|
|
|
strarray_push(&arr, "-L/usr/lib");
|
|
|
|
strarray_push(&arr, "-L/lib");
|
|
|
|
|
2020-10-09 09:06:35 +03:00
|
|
|
if (!opt_static) {
|
|
|
|
strarray_push(&arr, "-dynamic-linker");
|
|
|
|
strarray_push(&arr, "/lib64/ld-linux-x86-64.so.2");
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:00:04 +03:00
|
|
|
for (int i = 0; i < ld_extra_args.len; i++)
|
|
|
|
strarray_push(&arr, ld_extra_args.data[i]);
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
for (int i = 0; i < inputs->len; i++)
|
|
|
|
strarray_push(&arr, inputs->data[i]);
|
|
|
|
|
2020-10-09 09:06:35 +03:00
|
|
|
if (opt_static) {
|
|
|
|
strarray_push(&arr, "--start-group");
|
|
|
|
strarray_push(&arr, "-lgcc");
|
|
|
|
strarray_push(&arr, "-lgcc_eh");
|
|
|
|
strarray_push(&arr, "-lc");
|
|
|
|
strarray_push(&arr, "--end-group");
|
|
|
|
} else {
|
|
|
|
strarray_push(&arr, "-lc");
|
|
|
|
strarray_push(&arr, "-lgcc");
|
|
|
|
strarray_push(&arr, "--as-needed");
|
|
|
|
strarray_push(&arr, "-lgcc_s");
|
|
|
|
strarray_push(&arr, "--no-as-needed");
|
|
|
|
}
|
|
|
|
|
2020-10-09 09:09:17 +03:00
|
|
|
if (opt_shared)
|
|
|
|
strarray_push(&arr, format("%s/crtendS.o", gcc_libpath));
|
|
|
|
else
|
|
|
|
strarray_push(&arr, format("%s/crtend.o", gcc_libpath));
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
strarray_push(&arr, format("%s/crtn.o", libpath));
|
|
|
|
strarray_push(&arr, NULL);
|
|
|
|
|
|
|
|
run_subprocess(arr.data);
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
static FileType get_file_type(char *filename) {
|
|
|
|
if (opt_x != FILE_NONE)
|
|
|
|
return opt_x;
|
|
|
|
|
2020-08-25 08:47:43 +03:00
|
|
|
if (endswith(filename, ".a"))
|
|
|
|
return FILE_AR;
|
|
|
|
if (endswith(filename, ".so"))
|
|
|
|
return FILE_DSO;
|
|
|
|
if (endswith(filename, ".o"))
|
|
|
|
return FILE_OBJ;
|
2020-09-19 15:43:35 +03:00
|
|
|
if (endswith(filename, ".c"))
|
|
|
|
return FILE_C;
|
|
|
|
if (endswith(filename, ".s"))
|
|
|
|
return FILE_ASM;
|
|
|
|
|
|
|
|
error("<command line>: unknown file extension: %s", filename);
|
|
|
|
}
|
|
|
|
|
2020-08-15 16:30:28 +03:00
|
|
|
int main(int argc, char **argv) {
|
2020-10-08 08:34:23 +03:00
|
|
|
atexit(cleanup);
|
2020-08-27 19:34:10 +03:00
|
|
|
init_macros();
|
2020-08-15 16:30:28 +03:00
|
|
|
parse_args(argc, argv);
|
|
|
|
|
|
|
|
if (opt_cc1) {
|
2020-09-19 14:42:21 +03:00
|
|
|
add_default_include_paths(argv[0]);
|
2020-08-15 16:30:28 +03:00
|
|
|
cc1();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2020-08-20 15:37:02 +03:00
|
|
|
if (input_paths.len > 1 && opt_o && (opt_c || opt_S | opt_E))
|
|
|
|
error("cannot specify '-o' with '-c,' '-S' or '-E' with multiple files");
|
2020-09-19 14:36:26 +03:00
|
|
|
|
|
|
|
StringArray ld_args = {};
|
2020-08-18 03:16:57 +03:00
|
|
|
|
|
|
|
for (int i = 0; i < input_paths.len; i++) {
|
|
|
|
char *input = input_paths.data[i];
|
|
|
|
|
2020-08-25 05:02:38 +03:00
|
|
|
if (!strncmp(input, "-l", 2)) {
|
|
|
|
strarray_push(&ld_args, input);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:09:17 +03:00
|
|
|
if (!strncmp(input, "-Wl,", 4)) {
|
|
|
|
char *s = strdup(input + 4);
|
|
|
|
char *arg = strtok(s, ",");
|
|
|
|
while (arg) {
|
|
|
|
strarray_push(&ld_args, arg);
|
|
|
|
arg = strtok(NULL, ",");
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-08-18 03:16:57 +03:00
|
|
|
char *output;
|
|
|
|
if (opt_o)
|
|
|
|
output = opt_o;
|
|
|
|
else if (opt_S)
|
|
|
|
output = replace_extn(input, ".s");
|
|
|
|
else
|
|
|
|
output = replace_extn(input, ".o");
|
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
FileType type = get_file_type(input);
|
|
|
|
|
2020-08-25 08:47:43 +03:00
|
|
|
// Handle .o or .a
|
|
|
|
if (type == FILE_OBJ || type == FILE_AR || type == FILE_DSO) {
|
2020-09-19 14:36:26 +03:00
|
|
|
strarray_push(&ld_args, input);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Handle .s
|
2020-09-19 15:43:35 +03:00
|
|
|
if (type == FILE_ASM) {
|
2020-09-19 14:36:26 +03:00
|
|
|
if (!opt_S)
|
|
|
|
assemble(input, output);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 15:43:35 +03:00
|
|
|
assert(type == FILE_C);
|
2020-09-19 14:36:26 +03:00
|
|
|
|
2020-08-20 15:37:02 +03:00
|
|
|
// Just preprocess
|
2020-09-03 13:34:07 +03:00
|
|
|
if (opt_E || opt_M) {
|
2020-08-20 15:37:02 +03:00
|
|
|
run_cc1(argc, argv, input, NULL);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Compile
|
2020-08-18 03:16:57 +03:00
|
|
|
if (opt_S) {
|
|
|
|
run_cc1(argc, argv, input, output);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
// Compile and assemble
|
|
|
|
if (opt_c) {
|
|
|
|
char *tmp = create_tmpfile();
|
|
|
|
run_cc1(argc, argv, input, tmp);
|
|
|
|
assemble(tmp, output);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Compile, assemble and link
|
|
|
|
char *tmp1 = create_tmpfile();
|
|
|
|
char *tmp2 = create_tmpfile();
|
|
|
|
run_cc1(argc, argv, input, tmp1);
|
|
|
|
assemble(tmp1, tmp2);
|
|
|
|
strarray_push(&ld_args, tmp2);
|
|
|
|
continue;
|
2020-10-08 08:34:23 +03:00
|
|
|
}
|
|
|
|
|
2020-09-19 14:36:26 +03:00
|
|
|
if (ld_args.len > 0)
|
|
|
|
run_linker(&ld_args, opt_o ? opt_o : "a.out");
|
2019-08-03 05:29:50 +03:00
|
|
|
return 0;
|
|
|
|
}
|