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gmqcc/main.c
Wolfgang (Blub) Bumiller 5e186bb434 Updating usage message a bit
2012-12-06 18:16:59 +01:00

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/*
* Copyright (C) 2012
* Dale Weiler
* Wolfgang Bumiller
*
* 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"
/* counter increased in ir.c */
unsigned int optimization_count[COUNT_OPTIMIZATIONS];
static bool opts_output_wasset = false;
cmd_options opts;
/* set by the standard */
const oper_info *operators = NULL;
size_t operator_count = 0;
typedef struct { char *filename; int type; } argitem;
static argitem *items = NULL;
#define TYPE_QC 0
#define TYPE_ASM 1
#define TYPE_SRC 2
static const char *app_name;
static int usage() {
con_out("usage: %s [options] [files...]", app_name);
con_out("options:\n"
" -h, --help show this help message\n"
" -debug turns on compiler debug messages\n"
" -memchk turns on compiler memory leak check\n");
con_out(" -o, --output=file output file, defaults to progs.dat\n"
" -s filename add a progs.src file to be used\n");
con_out(" -E stop after preprocessing\n");
con_out(" -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");
con_out(" -f<flag> enable a flag\n"
" -fno-<flag> disable a flag\n"
" -fhelp list possible flags\n");
con_out(" -W<warning> enable a warning\n"
" -Wno-<warning> disable a warning\n"
" -Wall enable all warnings\n"
" -Werror treat warnings as errors\n");
con_out(" -Whelp list possible warnings\n");
con_out(" -O<number> optimization level\n"
" -O<name> enable specific optimization\n"
" -Ono-<name> disable specific optimization\n"
" -Ohelp list optimizations\n");
con_out(" -force-crc=num force a specific checksum into the header\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_setoptim(const char *name, bool on) {
return options_setflag_all(name, on, opts.optimization, opts_opt_list, COUNT_OPTIMIZATIONS);
}
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);
}
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
}
static void set_optimizations(unsigned int level)
{
size_t i;
for (i = 0; i < COUNT_OPTIMIZATIONS; ++i)
options_set(opts.optimization, i, level >= opts_opt_oflag[i]);
}
static bool options_parse(int argc, char **argv) {
bool argend = false;
size_t itr;
char buffer[1024];
char *redirout = (char*)stdout;
char *redirerr = (char*)stderr;
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")) {
options_set(opts.flags, ADJUST_VECTOR_FIELDS, true);
opts.standard = COMPILER_GMQCC;
} else if (!strcmp(argarg, "qcc")) {
options_set(opts.flags, ADJUST_VECTOR_FIELDS, false);
options_set(opts.flags, ASSIGN_FUNCTION_TYPES, true);
opts.standard = COMPILER_QCC;
} else if (!strcmp(argarg, "fte") || !strcmp(argarg, "fteqcc")) {
options_set(opts.flags, FTEPP, true);
options_set(opts.flags, TRANSLATABLE_STRINGS, true);
options_set(opts.flags, ADJUST_VECTOR_FIELDS, false);
options_set(opts.flags, ASSIGN_FUNCTION_TYPES, true);
options_set(opts.warn, WARN_TERNARY_PRECEDENCE, true);
options_set(opts.flags, CORRECT_TERNARY, false);
opts.standard = COMPILER_FTEQCC;
} else if (!strcmp(argarg, "qccx")) {
options_set(opts.flags, ADJUST_VECTOR_FIELDS, false);
opts.standard = COMPILER_QCCX;
} else {
con_out("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 (options_long_gcc("redirout", &argc, &argv, &redirout)) {
con_change(redirout, redirerr);
continue;
}
if (options_long_gcc("redirerr", &argc, &argv, &redirerr)) {
con_change(redirout, redirerr);
continue;
}
/* show defaults (like pathscale) */
if (!strcmp(argv[0]+1, "show-defaults")) {
size_t itr;
char buffer[1024];
for (itr = 0; itr < COUNT_FLAGS; ++itr) {
if (!OPTS_FLAG(itr))
continue;
memset(buffer, 0, sizeof(buffer));
util_strtononcmd(opts_flag_list[itr].name, buffer, strlen(opts_flag_list[itr].name) + 1);
con_out("-f%s ", buffer);
}
for (itr = 0; itr < COUNT_WARNINGS; ++itr) {
if (!OPTS_WARN(itr))
continue;
memset(buffer, 0, sizeof(buffer));
util_strtononcmd(opts_warn_list[itr].name, buffer, strlen(opts_warn_list[itr].name) + 1);
con_out("-W%s ", buffer);
}
con_out("\n");
exit(0);
}
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, "dumpfin")) {
opts.dumpfin = true;
continue;
}
if (!strcmp(argv[0]+1, "memchk")) {
opts.memchk = true;
continue;
}
if (!strcmp(argv[0]+1, "nocolor")) {
con_color(0);
continue;
}
switch (argv[0][1]) {
/* -h, show usage but exit with 0 */
case 'h':
usage();
exit(0);
/* break; never reached because of exit(0) */
case 'E':
opts.pp_only = true;
break;
/* debug turns on -flno */
case 'g':
options_setflag("LNO", 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") || *(argv[0]+2) == '?') {
con_out("Possible flags:\n");
for (itr = 0; itr < COUNT_FLAGS; ++itr) {
util_strtononcmd(opts_flag_list[itr].name, buffer, sizeof(buffer));
con_out(" -f%s\n", buffer);
}
exit(0);
}
else if (!strncmp(argv[0]+2, "NO_", 3)) {
if (!options_setflag(argv[0]+5, false)) {
con_out("unknown flag: %s\n", argv[0]+2);
return false;
}
}
else if (!options_setflag(argv[0]+2, true)) {
con_out("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") || *(argv[0]+2) == '?') {
con_out("Possible warnings:\n");
for (itr = 0; itr < COUNT_WARNINGS; ++itr) {
util_strtononcmd(opts_warn_list[itr].name, buffer, sizeof(buffer));
con_out(" -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)) {
con_out("unknown warning: %s\n", argv[0]+2);
return false;
}
}
else if (!options_setwarn(argv[0]+2, true)) {
con_out("unknown warning: %s\n", argv[0]+2);
return false;
}
break;
case 'O':
if (!options_witharg(&argc, &argv, &argarg)) {
con_out("option -O requires a numerical argument, or optimization name with an optional 'no-' prefix\n");
return false;
}
if (isdigit(argarg[0])) {
opts.O = atoi(argarg);
set_optimizations(opts.O);
} else {
util_strtocmd(argarg, argarg, strlen(argarg)+1);
if (!strcmp(argarg, "HELP")) {
con_out("Possible optimizations:\n");
for (itr = 0; itr < COUNT_OPTIMIZATIONS; ++itr) {
util_strtononcmd(opts_opt_list[itr].name, buffer, sizeof(buffer));
con_out(" -O%-20s (-O%u)\n", buffer, opts_opt_oflag[itr]);
}
exit(0);
}
else if (!strcmp(argarg, "ALL"))
set_optimizations(opts.O = 9999);
else if (!strncmp(argarg, "NO_", 3)) {
if (!options_setoptim(argarg+3, false)) {
con_out("unknown optimization: %s\n", argarg+3);
return false;
}
}
else {
if (!options_setoptim(argarg, true)) {
con_out("unknown optimization: %s\n", argarg);
return false;
}
}
}
break;
case 'o':
if (!options_witharg(&argc, &argv, &argarg)) {
con_out("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)) {
con_out("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;
vec_push(items, 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 {
con_out("Unknown parameter: %s\n", argv[0]);
return false;
}
}
break;
default:
con_out("Unknown parameter: %s\n", argv[0]);
return false;
}
}
else
{
/* it's a QC filename */
item.filename = argv[0];
item.type = TYPE_QC;
vec_push(items, item);
}
}
return true;
}
/* 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;
bool operators_free = false;
bool progs_src = false;
FILE *outfile = NULL;
memset(&opts, 0, sizeof(opts));
opts.output = "progs.dat";
opts.standard = COMPILER_GMQCC;
opts.max_array_size = (1024<<3);
app_name = argv[0];
con_init();
/* 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);
options_set(opts.warn, WARN_PREPROCESSOR, true);
options_set(opts.warn, WARN_MULTIFILE_IF, true);
options_set(opts.warn, WARN_DOUBLE_DECLARATION, true);
options_set(opts.warn, WARN_CONST_VAR, true);
options_set(opts.warn, WARN_MULTIBYTE_CHARACTER, true);
options_set(opts.flags, ADJUST_VECTOR_FIELDS, true);
options_set(opts.flags, FTEPP, false);
options_set(opts.flags, CORRECT_TERNARY, 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 if (opts.standard == COMPILER_FTEQCC) {
operators = fte_operators;
operator_count = fte_operator_count;
} else {
operators = qcc_operators;
operator_count = qcc_operator_count;
}
if (operators == fte_operators) {
/* fix ternary? */
if (OPTS_FLAG(CORRECT_TERNARY)) {
oper_info *newops;
if (operators[operator_count-2].id != opid1(',') ||
operators[operator_count-1].id != opid2(':','?'))
{
con_err("internal error: operator precedence table wasn't updated correctly!\n");
exit(1);
}
operators_free = true;
newops = mem_a(sizeof(operators[0]) * operator_count);
memcpy(newops, operators, sizeof(operators[0]) * operator_count);
memcpy(&newops[operator_count-2], &operators[operator_count-1], sizeof(newops[0]));
memcpy(&newops[operator_count-1], &operators[operator_count-2], sizeof(newops[0]));
newops[operator_count-2].prec = newops[operator_count-1].prec+1;
operators = newops;
}
}
if (opts.dump) {
for (itr = 0; itr < COUNT_FLAGS; ++itr) {
con_out("Flag %s = %i\n", opts_flag_list[itr].name, OPTS_FLAG(itr));
}
for (itr = 0; itr < COUNT_WARNINGS; ++itr) {
con_out("Warning %s = %i\n", opts_warn_list[itr].name, OPTS_WARN(itr));
}
con_out("output = %s\n", opts.output);
con_out("optimization level = %i\n", (int)opts.O);
con_out("standard = %i\n", opts.standard);
}
if (opts.pp_only) {
if (opts_output_wasset) {
outfile = util_fopen(opts.output, "wb");
if (!outfile) {
con_err("failed to open `%s` for writing\n", opts.output);
retval = 1;
goto cleanup;
}
}
else
outfile = stdout;
}
if (!opts.pp_only) {
if (!parser_init()) {
con_err("failed to initialize parser\n");
retval = 1;
goto cleanup;
}
}
if (opts.pp_only || OPTS_FLAG(FTEPP)) {
if (!ftepp_init()) {
con_err("failed to initialize parser\n");
retval = 1;
goto cleanup;
}
}
util_debug("COM", "starting ...\n");
if (!vec_size(items)) {
FILE *src;
char *line;
size_t linelen = 0;
progs_src = true;
src = util_fopen("progs.src", "rb");
if (!src) {
con_err("failed to open `progs.src` for reading\n");
retval = 1;
goto cleanup;
}
line = NULL;
if (!progs_nextline(&line, &linelen, src) || !line[0]) {
con_err("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)) {
argitem item;
if (!line[0] || (line[0] == '/' && line[1] == '/'))
continue;
item.filename = util_strdup(line);
item.type = TYPE_QC;
vec_push(items, item);
}
srcdone:
fclose(src);
mem_d(line);
}
if (retval)
goto cleanup;
if (vec_size(items)) {
if (!opts.pp_only) {
con_out("Mode: %s\n", (progs_src ? "progs.src" : "manual"));
con_out("There are %lu items to compile:\n", (unsigned long)vec_size(items));
}
for (itr = 0; itr < vec_size(items); ++itr) {
if (!opts.pp_only) {
con_out(" item: %s (%s)\n",
items[itr].filename,
( (items[itr].type == TYPE_QC ? "qc" :
(items[itr].type == TYPE_ASM ? "asm" :
(items[itr].type == TYPE_SRC ? "progs.src" :
("unknown"))))));
}
if (opts.pp_only) {
const char *out;
if (!ftepp_preprocess_file(items[itr].filename)) {
retval = 1;
goto cleanup;
}
out = ftepp_get();
if (out)
fprintf(outfile, "%s", out);
ftepp_flush();
}
else {
if (OPTS_FLAG(FTEPP)) {
const char *data;
if (!ftepp_preprocess_file(items[itr].filename)) {
retval = 1;
goto cleanup;
}
data = ftepp_get();
if (vec_size(data)) {
if (!parser_compile_string_len(items[itr].filename, data, vec_size(data))) {
retval = 1;
goto cleanup;
}
}
ftepp_flush();
}
else {
if (!parser_compile_file(items[itr].filename)) {
retval = 1;
goto cleanup;
}
}
}
if (progs_src) {
mem_d(items[itr].filename);
items[itr].filename = NULL;
}
}
ftepp_finish();
if (!opts.pp_only) {
if (!parser_finish(opts.output)) {
retval = 1;
goto cleanup;
}
}
}
/* stuff */
if (!opts.pp_only) {
for (itr = 0; itr < COUNT_OPTIMIZATIONS; ++itr) {
if (optimization_count[itr]) {
con_out("%s: %u\n", opts_opt_list[itr].name, (unsigned int)optimization_count[itr]);
}
}
}
cleanup:
util_debug("COM", "cleaning ...\n");
ftepp_finish();
con_close();
vec_free(items);
if (!opts.pp_only)
parser_cleanup();
if (opts_output_free)
mem_d((char*)opts.output);
if (operators_free)
mem_d((void*)operators);
lex_cleanup();
util_meminfo();
return retval;
}
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