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gmqcc/main.c

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/*
* Copyright (C) 2012
* Dale Weiler
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "gmqcc.h"
#include "lexer.h"
uint32_t opts_flags[1 + (COUNT_FLAGS / 32)];
uint32_t opts_warn [1 + (COUNT_WARNINGS / 32)];
uint32_t opts_O = 1;
const char *opts_output = "progs.dat";
int opts_standard = COMPILER_GMQCC;
bool opts_debug = false;
bool opts_memchk = false;
bool opts_dump = false;
bool opts_werror = false;
bool opts_forcecrc = false;
bool opts_pp_only = false;
uint16_t opts_forced_crc;
static bool opts_output_wasset = false;
/* set by the standard */
const oper_info *operators = NULL;
size_t operator_count = 0;
typedef struct { char *filename; int type; } argitem;
VECTOR_MAKE(argitem, items);
#define TYPE_QC 0
#define TYPE_ASM 1
#define TYPE_SRC 2
static const char *app_name;
static int usage() {
printf("usage: %s [options] [files...]", app_name);
printf("options:\n"
" -h, --help show this help message\n"
" -debug turns on compiler debug messages\n"
" -memchk turns on compiler memory leak check\n");
printf(" -o, --output=file output file, defaults to progs.dat\n"
" -a filename add an asm file to be assembled\n"
" -s filename add a progs.src file to be used\n");
printf(" -E stop after preprocessing\n");
printf(" -f<flag> enable a flag\n"
" -fno-<flag> disable a flag\n"
" -std standard select one of the following standards\n"
" -std=qcc original QuakeC\n"
" -std=fteqcc fteqcc QuakeC\n"
" -std=gmqcc this compiler (default)\n");
printf(" -W<warning> enable a warning\n"
" -Wno-<warning> disable a warning\n"
" -Wall enable all warnings\n"
" -Werror treat warnings as errors\n");
printf(" -force-crc=num force a specific checksum into the header\n");
printf("\n");
printf("flags:\n"
" -fadjust-vector-fields\n"
" when assigning a vector field, its _y and _z fields also get assigned\n"
);
return -1;
}
static bool options_setflag_all(const char *name, bool on, uint32_t *flags, const opts_flag_def *list, size_t listsize) {
size_t i;
for (i = 0; i < listsize; ++i) {
if (!strcmp(name, list[i].name)) {
longbit lb = list[i].bit;
#if 0
if (on)
flags[lb.idx] |= (1<<(lb.bit));
else
flags[lb.idx] &= ~(1<<(lb.bit));
#else
if (on)
flags[0] |= (1<<lb);
else
flags[0] &= ~(1<<(lb));
#endif
return true;
}
}
return false;
}
static bool options_setflag(const char *name, bool on) {
return options_setflag_all(name, on, opts_flags, opts_flag_list, COUNT_FLAGS);
}
static bool options_setwarn(const char *name, bool on) {
return options_setflag_all(name, on, opts_warn, opts_warn_list, COUNT_WARNINGS);
}
static bool options_witharg(int *argc_, char ***argv_, char **out) {
int argc = *argc_;
char **argv = *argv_;
if (argv[0][2]) {
*out = argv[0]+2;
return true;
}
/* eat up the next */
if (argc < 2) /* no parameter was provided */
return false;
*out = argv[1];
--*argc_;
++*argv_;
return true;
}
static bool options_long_witharg_all(const char *optname, int *argc_, char ***argv_, char **out, int ds, bool split) {
int argc = *argc_;
char **argv = *argv_;
size_t len = strlen(optname);
if (strncmp(argv[0]+ds, optname, len))
return false;
/* it's --optname, check how the parameter is supplied */
if (argv[0][ds+len] == '=') {
/* using --opt=param */
*out = argv[0]+ds+len+1;
return true;
}
if (!split || argc < ds) /* no parameter was provided, or only single-arg form accepted */
return false;
/* using --opt param */
*out = argv[1];
--*argc_;
++*argv_;
return true;
}
static bool options_long_witharg(const char *optname, int *argc_, char ***argv_, char **out) {
return options_long_witharg_all(optname, argc_, argv_, out, 2, true);
}
static bool options_long_gcc(const char *optname, int *argc_, char ***argv_, char **out) {
return options_long_witharg_all(optname, argc_, argv_, out, 1, false);
}
static bool options_parse(int argc, char **argv) {
bool argend = false;
size_t itr;
char buffer[1024];
while (!argend && argc > 1) {
char *argarg;
argitem item;
++argv;
--argc;
if (argv[0][0] == '-') {
/* All gcc-type long options */
if (options_long_gcc("std", &argc, &argv, &argarg)) {
if (!strcmp(argarg, "gmqcc") || !strcmp(argarg, "default"))
opts_standard = COMPILER_GMQCC;
else if (!strcmp(argarg, "qcc"))
opts_standard = COMPILER_QCC;
else if (!strcmp(argarg, "fte") || !strcmp(argarg, "fteqcc"))
opts_standard = COMPILER_FTEQCC;
else if (!strcmp(argarg, "qccx"))
opts_standard = COMPILER_QCCX;
else {
printf("Unknown standard: %s\n", argarg);
return false;
}
continue;
}
if (options_long_gcc("force-crc", &argc, &argv, &argarg)) {
opts_forcecrc = true;
opts_forced_crc = strtol(argarg, NULL, 0);
continue;
}
if (!strcmp(argv[0]+1, "debug")) {
opts_debug = true;
continue;
}
if (!strcmp(argv[0]+1, "dump")) {
opts_dump = true;
continue;
}
if (!strcmp(argv[0]+1, "memchk")) {
opts_memchk = true;
continue;
}
switch (argv[0][1]) {
/* -h, show usage but exit with 0 */
case 'h':
usage();
exit(0);
break;
case 'E':
opts_pp_only = true;
break;
/* handle all -fflags */
case 'f':
util_strtocmd(argv[0]+2, argv[0]+2, strlen(argv[0]+2)+1);
if (!strcmp(argv[0]+2, "HELP")) {
printf("Possible flags:\n");
for (itr = 0; itr < COUNT_FLAGS; ++itr) {
util_strtononcmd(opts_flag_list[itr].name, buffer, sizeof(buffer));
printf(" -f%s\n", buffer);
}
exit(0);
}
else if (!strncmp(argv[0]+2, "NO_", 3)) {
if (!options_setflag(argv[0]+5, false)) {
printf("unknown flag: %s\n", argv[0]+2);
return false;
}
}
else if (!options_setflag(argv[0]+2, true)) {
printf("unknown flag: %s\n", argv[0]+2);
return false;
}
break;
case 'W':
util_strtocmd(argv[0]+2, argv[0]+2, strlen(argv[0]+2)+1);
if (!strcmp(argv[0]+2, "HELP")) {
printf("Possible warnings:\n");
for (itr = 0; itr < COUNT_WARNINGS; ++itr) {
util_strtononcmd(opts_warn_list[itr].name, buffer, sizeof(buffer));
printf(" -W%s\n", buffer);
}
exit(0);
}
else if (!strcmp(argv[0]+2, "NO_ERROR")) {
opts_werror = false;
break;
}
else if (!strcmp(argv[0]+2, "ERROR")) {
opts_werror = true;
break;
}
else if (!strcmp(argv[0]+2, "NONE")) {
for (itr = 0; itr < sizeof(opts_warn)/sizeof(opts_warn[0]); ++itr)
opts_warn[itr] = 0;
break;
}
else if (!strcmp(argv[0]+2, "ALL")) {
for (itr = 0; itr < sizeof(opts_warn)/sizeof(opts_warn[0]); ++itr)
opts_warn[itr] = 0xFFFFFFFFL;
break;
}
if (!strncmp(argv[0]+2, "NO_", 3)) {
if (!options_setwarn(argv[0]+5, false)) {
printf("unknown warning: %s\n", argv[0]+2);
return false;
}
}
else if (!options_setwarn(argv[0]+2, true)) {
printf("unknown warning: %s\n", argv[0]+2);
return false;
}
break;
case 'O':
if (!options_witharg(&argc, &argv, &argarg)) {
printf("option -O requires a numerical argument\n");
return false;
}
opts_O = atoi(argarg);
break;
case 'o':
if (!options_witharg(&argc, &argv, &argarg)) {
printf("option -o requires an argument: the output file name\n");
return false;
}
opts_output = argarg;
opts_output_wasset = true;
break;
case 'a':
case 's':
item.type = argv[0][1] == 'a' ? TYPE_ASM : TYPE_SRC;
if (!options_witharg(&argc, &argv, &argarg)) {
printf("option -a requires a filename %s\n",
(argv[0][1] == 'a' ? "containing QC-asm" : "containing a progs.src formatted list"));
return false;
}
item.filename = argarg;
items_add(item);
break;
case '-':
if (!argv[0][2]) {
/* anything following -- is considered a non-option argument */
argend = true;
break;
}
/* All long options without arguments */
else if (!strcmp(argv[0]+2, "help")) {
usage();
exit(0);
}
else {
/* All long options with arguments */
if (options_long_witharg("output", &argc, &argv, &argarg)) {
opts_output = argarg;
opts_output_wasset = true;
} else {
printf("Unknown parameter: %s\n", argv[0]);
return false;
}
}
break;
default:
printf("Unknown parameter: %s\n", argv[0]);
return false;
}
}
else
{
/* it's a QC filename */
argitem item;
item.filename = argv[0];
item.type = TYPE_QC;
items_add(item);
}
}
return true;
}
static void options_set(uint32_t *flags, size_t idx, bool on)
{
longbit lb = LONGBIT(idx);
#if 0
if (on)
flags[lb.idx] |= (1<<(lb.bit));
else
flags[lb.idx] &= ~(1<<(lb.bit));
#else
if (on)
flags[0] |= (1<<(lb));
else
flags[0] &= ~(1<<(lb));
#endif
}
/* returns the line number, or -1 on error */
static bool progs_nextline(char **out, size_t *alen,FILE *src)
{
int len;
char *line;
char *start;
char *end;
line = *out;
len = util_getline(&line, alen, src);
if (len == -1)
return false;
/* start at first non-blank */
for (start = line; isspace(*start); ++start) {}
/* end at the first non-blank */
for (end = start; *end && !isspace(*end); ++end) {}
*out = line;
/* move the actual filename to the beginning */
while (start != end) {
*line++ = *start++;
}
*line = 0;
return true;
}
int main(int argc, char **argv) {
size_t itr;
int retval = 0;
bool opts_output_free = false;
app_name = argv[0];
/* default options / warn flags */
options_set(opts_warn, WARN_UNKNOWN_CONTROL_SEQUENCE, true);
options_set(opts_warn, WARN_EXTENSIONS, true);
options_set(opts_warn, WARN_FIELD_REDECLARED, true);
options_set(opts_warn, WARN_TOO_FEW_PARAMETERS, true);
options_set(opts_warn, WARN_MISSING_RETURN_VALUES, true);
options_set(opts_warn, WARN_USED_UNINITIALIZED, true);
options_set(opts_warn, WARN_LOCAL_CONSTANTS, true);
options_set(opts_warn, WARN_VOID_VARIABLES, true);
options_set(opts_warn, WARN_IMPLICIT_FUNCTION_POINTER, true);
options_set(opts_warn, WARN_VARIADIC_FUNCTION, true);
options_set(opts_warn, WARN_FRAME_MACROS, true);
options_set(opts_warn, WARN_UNUSED_VARIABLE, true);
options_set(opts_warn, WARN_EFFECTLESS_STATEMENT, true);
options_set(opts_warn, WARN_END_SYS_FIELDS, true);
options_set(opts_warn, WARN_ASSIGN_FUNCTION_TYPES, true);
if (!options_parse(argc, argv)) {
return usage();
}
/* the standard decides which set of operators to use */
if (opts_standard == COMPILER_GMQCC) {
operators = c_operators;
operator_count = c_operator_count;
} else {
operators = qcc_operators;
operator_count = qcc_operator_count;
}
if (opts_dump) {
for (itr = 0; itr < COUNT_FLAGS; ++itr) {
printf("Flag %s = %i\n", opts_flag_list[itr].name, OPTS_FLAG(itr));
}
for (itr = 0; itr < COUNT_WARNINGS; ++itr) {
printf("Warning %s = %i\n", opts_warn_list[itr].name, OPTS_WARN(itr));
}
printf("output = %s\n", opts_output);
printf("optimization level = %i\n", (int)opts_O);
printf("standard = %i\n", opts_standard);
}
if (!parser_init()) {
printf("failed to initialize parser\n");
retval = 1;
goto cleanup;
}
util_debug("COM", "starting ...\n");
if (items_elements) {
printf("Mode: manual\n");
printf("There are %lu items to compile:\n", (unsigned long)items_elements);
for (itr = 0; itr < items_elements; ++itr) {
printf(" item: %s (%s)\n",
items_data[itr].filename,
( (items_data[itr].type == TYPE_QC ? "qc" :
(items_data[itr].type == TYPE_ASM ? "asm" :
(items_data[itr].type == TYPE_SRC ? "progs.src" :
("unknown"))))));
if (opts_pp_only) {
if (!preprocess(items_data[itr].filename)) {
retval = 1;
goto cleanup;
}
continue;
}
if (!parser_compile(items_data[itr].filename)) {
retval = 1;
goto cleanup;
}
}
if (!parser_finish(opts_output)) {
retval = 1;
goto cleanup;
}
} else {
FILE *src;
char *line;
size_t linelen = 0;
printf("Mode: progs.src\n");
src = util_fopen("progs.src", "rb");
if (!src) {
printf("failed to open `progs.src` for reading\n");
retval = 1;
goto cleanup;
}
line = NULL;
if (!progs_nextline(&line, &linelen, src) || !line[0]) {
printf("illformatted progs.src file: expected output filename in first line\n");
retval = 1;
goto srcdone;
}
if (!opts_output_wasset) {
opts_output = util_strdup(line);
opts_output_free = true;
}
while (progs_nextline(&line, &linelen, src)) {
if (!line[0] || (line[0] == '/' && line[1] == '/'))
continue;
printf(" src: %s\n", line);
if (!parser_compile(line)) {
retval = 1;
goto srcdone;
}
}
parser_finish(opts_output);
srcdone:
fclose(src);
mem_d(line);
}
/* stuff */
cleanup:
util_debug("COM", "cleaning ...\n");
mem_d(items_data);
parser_cleanup();
if (opts_output_free)
mem_d((char*)opts_output);
lex_cleanup();
util_meminfo();
return retval;
}
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