#include <config.h>
-#include <stdlib.h>
+#define _GNU_SOURCE
+
#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
#include <errno.h>
#include <string.h>
+#include <assert.h>
+
+#ifdef _WIN32
+
+#include <fcntl.h>
+#include <io.h>
+
+/* no eXecute on Win32 */
+#define X_OK 0
+#define W_OK 2
+#define R_OK 4
+
+#define O_RDWR _O_RDWR
+#define O_CREAT _O_CREAT
+#define O_EXCL _O_EXCL
+#define O_BINARY _O_BINARY
+
+/* remap some names, we are not in the POSIX world */
+#define access(fname, mode) _access(fname, mode)
+#define mktemp(tmpl) _mktemp(tmpl)
+#define open(fname, oflag, mode) _open(fname, oflag, mode)
+#define fdopen(fd, mode) _fdopen(fd, mode)
+#define popen(cmd, mode) _popen(cmd, mode)
+#define pclose(file) _pclose(file)
+
+#else
+#include <unistd.h>
+#define HAVE_MKSTEMP
+#endif
+
+#ifndef WITH_LIBCORE
+#define WITH_LIBCORE
+#endif
+
+#include <libfirm/firm.h>
+#include <libfirm/be.h>
#include "lexer.h"
#include "token_t.h"
+#include "types.h"
#include "type_hash.h"
#include "parser.h"
+#include "ast2firm.h"
+#include "diagnostic.h"
+#include "lang_features.h"
+#include "driver/firm_opt.h"
+#include "driver/firm_cmdline.h"
+#include "adt/error.h"
+#include "write_fluffy.h"
+#include "revision.h"
+#include "warning.h"
+
+#ifndef PREPROCESSOR
+#define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int"
+#endif
+
+#ifndef LINKER
+#define LINKER "gcc -m32"
+#endif
+
+#ifndef ASSEMBLER
+#define ASSEMBLER "as --32"
+#endif
-#if 0
-static
-void get_output_name(char *buf, size_t buflen, const char *inputname,
- const char *newext)
+/** The current c mode/dialect. */
+unsigned int c_mode = _C89|_C99|_GNUC;
+
+/** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */
+unsigned int machine_size = 32;
+
+/** true if the char type is signed. */
+bool char_is_signed = true;
+
+/** true for strict language checking. */
+bool strict_mode = false;
+
+static int verbose;
+static struct obstack cppflags_obst, ldflags_obst;
+
+#if defined(_DEBUG) || defined(FIRM_DEBUG)
+/**
+ * Debug printf implementation.
+ *
+ * @param fmt printf style format parameter
+ */
+void dbg_printf(const char *fmt, ...)
+{
+ va_list list;
+
+ if (firm_dump.debug_print) {
+ va_start(list, fmt);
+ vprintf(fmt, list);
+ va_end(list);
+ } /* if */
+}
+#endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */
+
+static void initialize_firm(void)
+{
+ firm_early_init();
+
+ dump_consts_local(1);
+ dump_keepalive_edges(1);
+}
+
+static void get_output_name(char *buf, size_t buflen, const char *inputname,
+ const char *newext)
{
size_t last_dot = 0xffffffff;
size_t i = 0;
+
+ if(inputname == NULL) {
+ snprintf(buf, buflen, "a%s", newext);
+ return;
+ }
+
for(const char *c = inputname; *c != 0; ++c) {
if(*c == '.')
last_dot = i;
panic("filename too long");
memcpy(buf+last_dot, newext, extlen);
}
-#endif
-static
-translation_unit_t *do_parsing(const char *fname)
+static translation_unit_t *do_parsing(FILE *const in, const char *const input)
{
- FILE *in = fopen(fname, "r");
- if(in == NULL) {
- fprintf(stderr, "Couldn't open '%s': %s\n", fname, strerror(errno));
+ lexer_open_stream(in, input);
+ translation_unit_t *unit = parse();
+ return unit;
+}
+
+static void lextest(FILE *in, const char *fname)
+{
+ lexer_open_stream(in, fname);
+
+ do {
+ lexer_next_preprocessing_token();
+ print_token(stdout, &lexer_token);
+ puts("");
+ } while(lexer_token.type != T_EOF);
+}
+
+static FILE* preprocess(FILE* in, const char *fname)
+{
+ char buf[4096];
+ const char *flags = obstack_finish(&cppflags_obst);
+
+ if(in != stdin) {
+ snprintf(buf, sizeof(buf), PREPROCESSOR " %s %s", flags, fname);
+ } else {
+ /* read from stdin */
+ snprintf(buf, sizeof(buf), PREPROCESSOR " %s -", flags);
+ }
+
+ if(verbose) {
+ puts(buf);
+ }
+ FILE* f = popen(buf, "r");
+ if (f == NULL) {
+ fprintf(stderr, "invoking preprocessor failed\n");
exit(1);
}
+ return f;
+}
- lexer_open_stream(in, fname);
+static void do_link(const char *out, const char *in)
+{
+ char buf[4096];
+ const char *flags = obstack_finish(&ldflags_obst);
- translation_unit_t *unit = parse();
+ snprintf(buf, sizeof(buf), LINKER " %s -o %s %s", flags, out, in);
+ if(verbose) {
+ puts(buf);
+ }
+ int err = system(buf);
+ if(err != 0) {
+ fprintf(stderr, "linker reported an error\n");
+ exit(1);
+ }
+}
+
+static void assemble(const char *out, const char *in)
+{
+ char buf[4096];
- fclose(in);
+ snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
+ if(verbose) {
+ puts(buf);
+ }
- return unit;
+ int err = system(buf);
+ if(err != 0) {
+ fprintf(stderr, "assembler reported an error\n");
+ exit(1);
+ }
}
-static
-void lextest(const char *fname)
+static const char *try_dir(const char *dir)
{
- FILE *in = fopen(fname, "r");
- if(in == NULL) {
- fprintf(stderr, "Couldn't open '%s': %s\n", fname, strerror(errno));
+ if(dir == NULL)
+ return dir;
+ if(access(dir, R_OK | W_OK | X_OK) == 0)
+ return dir;
+ return NULL;
+}
+
+static const char *get_tempdir(void)
+{
+ static const char *tmpdir = NULL;
+
+ if(tmpdir != NULL)
+ return tmpdir;
+
+ if(tmpdir == NULL)
+ tmpdir = try_dir(getenv("TMPDIR"));
+ if(tmpdir == NULL)
+ tmpdir = try_dir(getenv("TMP"));
+ if(tmpdir == NULL)
+ tmpdir = try_dir(getenv("TEMP"));
+
+#ifdef P_tmpdir
+ if(tmpdir == NULL)
+ tmpdir = try_dir(P_tmpdir);
+#endif
+
+ if(tmpdir == NULL)
+ tmpdir = try_dir("/var/tmp");
+ if(tmpdir == NULL)
+ tmpdir = try_dir("/usr/tmp");
+ if(tmpdir == NULL)
+ tmpdir = try_dir("/tmp");
+
+ if(tmpdir == NULL)
+ tmpdir = ".";
+
+ return tmpdir;
+}
+
+#ifndef HAVE_MKSTEMP
+/* cheap and nasty mkstemp replacement */
+static int mkstemp(char *templ)
+{
+ mktemp(templ);
+ return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600);
+}
+#endif
+
+/**
+ * an own version of tmpnam, which: writes in a buffer, appends a user specified
+ * suffix, emits no warnings during linking (like glibc/gnu ld do for tmpnam)...
+ */
+static FILE *make_temp_file(char *buffer, size_t buflen,
+ const char *prefix, const char *suffix)
+{
+ const char *tempdir = get_tempdir();
+
+ /* oh well... mkstemp doesn't accept a suffix after XXXXXX... */
+ (void) suffix;
+ suffix = "";
+
+ snprintf(buffer, buflen, "%s/%sXXXXXX%s", tempdir, prefix, suffix);
+
+ int fd = mkstemp(buffer);
+ if(fd == -1) {
+ fprintf(stderr, "couldn't create temporary file: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+ FILE *out = fdopen(fd, "w");
+ if(out == NULL) {
+ fprintf(stderr, "couldn't create temporary file FILE*\n");
exit(1);
}
- lexer_open_stream(in, fname);
+ return out;
+}
- do {
- lexer_next_preprocessing_token();
- print_token(stdout, &lexer_token);
- puts("");
- } while(lexer_token.type != T_EOF);
+/**
+ * Do the necessary lowering for compound parameters.
+ */
+void lower_compound_params(void)
+{
+ lower_params_t params;
- fclose(in);
+ params.def_ptr_alignment = 4;
+ params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN;
+ params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT;
+ params.find_pointer_type = NULL;
+ params.ret_compound_in_regs = NULL;
+ lower_calls_with_compounds(¶ms);
}
-void write_fluffy_decls(translation_unit_t *unit);
+typedef enum compile_mode_t {
+ ParseOnly,
+ Compile,
+ CompileDump,
+ CompileAssemble,
+ CompileAssembleLink,
+ LexTest,
+ PrintAst,
+ PrintFluffy
+} compile_mode_t;
+
+static void usage(const char *argv0)
+{
+ fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
+}
int main(int argc, char **argv)
{
+ initialize_firm();
+
+ const char *input = NULL;
+ const char *outname = NULL;
+ const char *dumpfunction = NULL;
+ compile_mode_t mode = CompileAssembleLink;
+
+ obstack_init(&cppflags_obst);
+ obstack_init(&ldflags_obst);
+
+#define GET_ARG_AFTER(def, args) \
+ def = &arg[sizeof(args)-1]; \
+ if(def[0] == '\0') { \
+ ++i; \
+ if(i >= argc) { \
+ fprintf(stderr, "error: expected argument after '" args "'\n"); \
+ argument_errors = true; \
+ break; \
+ } \
+ def = argv[i]; \
+ if(def[0] == '-' && def[1] != '\0') { \
+ fprintf(stderr, "error: expected argument after '" args "'\n"); \
+ argument_errors = true; \
+ continue; \
+ } \
+ }
+
+#define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
+
+ bool help_displayed = false;
+ bool argument_errors = false;
+ for(int i = 1; i < argc; ++i) {
+ const char *arg = argv[i];
+ if(arg[0] == '-') {
+ /* an option */
+ const char *option = &arg[1];
+ if(option[0] == 'o') {
+ GET_ARG_AFTER(outname, "-o");
+ } else if(SINGLE_OPTION('c')) {
+ mode = CompileAssemble;
+ } else if(SINGLE_OPTION('S')) {
+ mode = Compile;
+ } else if(option[0] == 'I') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-I");
+ obstack_printf(&cppflags_obst, " -I%s", opt);
+ } else if(option[0] == 'D') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-D");
+ obstack_printf(&cppflags_obst, " -D%s", opt);
+ } else if(option[0] == 'U') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-U");
+ obstack_printf(&cppflags_obst, " -U%s", opt);
+ } else if(option[0] == 'l') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-l");
+ obstack_printf(&ldflags_obst, " -l%s", opt);
+ } else if(option[0] == 'L') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-L");
+ obstack_printf(&ldflags_obst, " -L%s", opt);
+ } else if(SINGLE_OPTION('v')) {
+ verbose = 1;
+ } else if(SINGLE_OPTION('w')) {
+ inhibit_all_warnings = true;
+ } else if(option[0] == 'f') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-f");
+
+ if(strcmp(opt, "syntax-only") == 0) {
+ mode = ParseOnly;
+ } else if(strcmp(opt, "omit-frame-pointer") == 0) {
+ firm_be_option("omitfp");
+ } else if(strcmp(opt, "no-omit-frame-pointer") == 0) {
+ firm_be_option("omitfp=no");
+ } else {
+ int res = firm_option(opt);
+ if (res == 0) {
+ fprintf(stderr, "error: unknown Firm option '-f %s'\n",
+ opt);
+ argument_errors = true;
+ continue;
+ } else if (res == -1) {
+ help_displayed = true;
+ }
+ }
+ } else if(option[0] == 'b') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-b");
+ int res = firm_be_option(opt);
+ if (res == 0) {
+ fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
+ opt);
+ argument_errors = true;
+ } else if (res == -1) {
+ help_displayed = true;
+ }
+ } else if(option[0] == 'W') {
+ set_warning_opt(&option[1]);
+ } else if(option[0] == 'm') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-m");
+ char *endptr;
+ long int value = strtol(opt, &endptr, 10);
+ if (*endptr != '\0') {
+ fprintf(stderr, "error: wrong option '-m %s'\n", opt);
+ argument_errors = true;
+ }
+ if (value != 16 && value != 32 && value != 64) {
+ fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
+ argument_errors = true;
+ } else {
+ machine_size = (unsigned int)value;
+ }
+ } else if (option[0] == '\0') {
+ if(input != NULL) {
+ fprintf(stderr, "error: multiple input files specified\n");
+ argument_errors = true;
+ } else {
+ input = arg;
+ }
+ } else if(strcmp(option, "pedantic") == 0) {
+ fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
+ } else if(option[0] == 'O' ||
+ option[0] == 'g' ||
+ strncmp(option, "std=", 4) == 0) {
+ fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
+ } else if (option[0] == '-') {
+ /* double dash option */
+ ++option;
+ if(strcmp(option, "gcc") == 0) {
+ c_mode |= _GNUC;
+ } else if(strcmp(option, "no-gcc") == 0) {
+ c_mode &= ~_GNUC;
+ } else if(strcmp(option, "ms") == 0) {
+ c_mode |= _MS;
+ } else if(strcmp(option, "no-ms") == 0) {
+ c_mode &= ~_MS;
+ } else if(strcmp(option, "signed-chars") == 0) {
+ char_is_signed = true;
+ } else if(strcmp(option, "unsigned-chars") == 0) {
+ char_is_signed = false;
+ } else if(strcmp(option, "strict") == 0) {
+ strict_mode = true;
+ } else if(strcmp(option, "lextest") == 0) {
+ mode = LexTest;
+ } else if(strcmp(option, "print-ast") == 0) {
+ mode = PrintAst;
+ } else if(strcmp(option, "print-fluffy") == 0) {
+ mode = PrintFluffy;
+ } else if(strcmp(option, "version") == 0) {
+ firm_version_t ver;
+ firm_get_version(&ver);
+ printf("cparser (%d.%d %s) using libFirm (%u.%u", 0, 1, cparser_REVISION, ver.major, ver.minor);
+ if(ver.revision[0] != 0) {
+ putchar(' ');
+ fputs(ver.revision, stdout);
+ }
+ if(ver.build[0] != 0) {
+ putchar(' ');
+ fputs(ver.build, stdout);
+ }
+ puts(")\n");
+ exit(EXIT_SUCCESS);
+ } else if(strcmp(option, "dump-function") == 0) {
+ ++i;
+ if(i >= argc) {
+ fprintf(stderr, "error: "
+ "expected argument after '--dump-function'\n");
+ argument_errors = true;
+ break;
+ }
+ dumpfunction = argv[i];
+ mode = CompileDump;
+ } else {
+ fprintf(stderr, "error: unknown argument '%s'\n", arg);
+ argument_errors = true;
+ }
+ } else {
+ fprintf(stderr, "error: unknown argument '%s'\n", arg);
+ argument_errors = true;
+ }
+ } else {
+ if(input != NULL) {
+ fprintf(stderr, "error: multiple input files specified\n");
+ argument_errors = true;
+ } else {
+ input = arg;
+ }
+ }
+ }
+
+ /* we do the lowering in ast2firm */
+ firm_opt.lower_bitfields = FALSE;
+
+ if(help_displayed) {
+ return !argument_errors;
+ }
+ if(argument_errors) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ gen_firm_init();
init_symbol_table();
init_tokens();
- init_lexer();
init_types();
init_typehash();
+ init_basic_types();
+ init_lexer();
init_ast();
init_parser();
+ init_ast2firm();
- if(argc > 2 && strcmp(argv[1], "--lextest") == 0) {
- lextest(argv[2]);
+ FILE *out = NULL;
+ char outnamebuf[4096];
+ if(outname == NULL) {
+ switch(mode) {
+ case PrintAst:
+ case PrintFluffy:
+ case LexTest:
+ if(outname == NULL)
+ outname = "-";
+ break;
+ case ParseOnly:
+ break;
+ case Compile:
+ get_output_name(outnamebuf, sizeof(outnamebuf), input, ".s");
+ outname = outnamebuf;
+ break;
+ case CompileAssemble:
+ get_output_name(outnamebuf, sizeof(outnamebuf), input, ".o");
+ outname = outnamebuf;
+ break;
+ case CompileDump:
+ get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction,
+ ".vcg");
+ outname = outnamebuf;
+ break;
+ case CompileAssembleLink:
+ outname = "a.out";
+ break;
+ }
+ }
+
+ if(outname != NULL) {
+ if(strcmp(outname, "-") == 0) {
+ out = stdout;
+ } else {
+ out = fopen(outname, "w");
+ if(out == NULL) {
+ fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
+ strerror(errno));
+ return 1;
+ }
+ }
+ }
+
+ FILE *in;
+ if(input == NULL) {
+ fprintf(stderr, "%s: no input files\n", argv[0]);
+ return 1;
+ } else if(strcmp(input, "-") == 0) {
+ in = stdin;
+ input = "<stdin>";
+ } else {
+ in = fopen(input, "r");
+ if(in == NULL) {
+ fprintf(stderr, "Couldn't open '%s': %s\n", input, strerror(errno));
+ return 1;
+ }
+ }
+
+ if(mode == LexTest) {
+ lextest(in, input);
+ fclose(in);
return 0;
}
- if(argc > 2 && strcmp(argv[1], "--print-ast") == 0) {
- translation_unit_t *unit = do_parsing(argv[2]);
- ast_set_output(stdout);
+ FILE *preprocessed_in = preprocess(in, input);
+ translation_unit_t *const unit = do_parsing(preprocessed_in, input);
+ int result = pclose(preprocessed_in);
+ if(result != 0) {
+ return result;
+ }
+ if(unit == NULL) {
+ /* parsing failed because of errors */
+ fprintf(stderr, "%u error(s), %u warning(s)\n", error_count, warning_count);
+ return EXIT_FAILURE;
+ }
+ if (warning_count > 0) {
+ fprintf(stderr, "%u warning(s)\n", warning_count);
+ }
+
+ if(mode == PrintAst) {
+ type_set_output(out);
+ ast_set_output(out);
print_ast(unit);
return 0;
}
+ if(mode == PrintFluffy) {
+ type_set_output(out);
+ ast_set_output(out);
+ write_fluffy_decls(out, unit);
+ }
+
+ translation_unit_to_firm(unit);
- if(argc > 2 && strcmp(argv[1], "--print-fluffy") == 0) {
- translation_unit_t *unit = do_parsing(argv[2]);
- ast_set_output(stdout);
- write_fluffy_decls(unit);
+ if(mode == ParseOnly) {
return 0;
}
- for(int i = 1; i < argc; ++i) {
- do_parsing(argv[i]);
+ FILE *asm_out;
+ char asm_tempfile[1024];
+ if(mode == CompileDump) {
+ asm_out = NULL;
+ firm_be_opt.selection = BE_NONE;
+ } else if(mode == Compile) {
+ asm_out = out;
+ } else {
+ asm_out
+ = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "cc", ".s");
+ }
+ gen_firm_finish(asm_out, input, /*c_mode=*/1, /*firm_const_exists=*/0);
+
+ if(mode == CompileDump) {
+ /* find irg */
+ ident *id = new_id_from_str(dumpfunction);
+ ir_graph *irg = NULL;
+ int n_irgs = get_irp_n_irgs();
+ for(int i = 0; i < n_irgs; ++i) {
+ ir_graph *tirg = get_irp_irg(i);
+ ident *irg_id = get_entity_ident(get_irg_entity(tirg));
+ if(irg_id == id) {
+ irg = tirg;
+ break;
+ }
+ }
+
+ if(irg == NULL) {
+ fprintf(stderr, "No graph for function '%s' found\n", dumpfunction);
+ return 1;
+ }
+
+ dump_ir_block_graph_file(irg, out);
+ fclose(out);
+ return 0;
}
+ fclose(asm_out);
+
+ /* assemble assembler and create object file */
+ char obj_tfile[1024];
+ if(mode == CompileAssemble || mode == CompileAssembleLink) {
+ const char *obj_outfile;
+ if(mode == CompileAssemble) {
+ fclose(out);
+ obj_outfile = outname;
+ } else {
+ FILE *tempf
+ = make_temp_file(obj_tfile, sizeof(obj_tfile), "cc", ".o");
+ fclose(tempf);
+ obj_outfile = obj_tfile;
+ }
+
+ assemble(obj_outfile, asm_tempfile);
+ }
+
+ /* link object file */
+ if(mode == CompileAssembleLink) {
+ do_link(outname, obj_tfile);
+ }
+
+ obstack_free(&cppflags_obst, NULL);
+ obstack_free(&ldflags_obst, NULL);
+
+ exit_ast2firm();
exit_parser();
exit_ast();
+ exit_lexer();
exit_typehash();
exit_types();
- exit_lexer();
exit_tokens();
exit_symbol_table();
return 0;
projects / cparser / blobdiff