- implemented -Wsign-compare
[cparser] / main.c
diff --git a/main.c b/main.c
index 70c5ba0..086d82e 100644 (file)
--- a/main.c
+++ b/main.c
@@ -7,9 +7,36 @@
 #include <stdbool.h>
 #include <errno.h>
 #include <string.h>
-#include <unistd.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 "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 "driver/firm_opt.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"
+#define LINKER    "gcc -m32"
 #endif
 
 #ifndef ASSEMBLER
 #define ASSEMBLER "as --32"
 #endif
 
-#ifdef _WIN32
-/* remap some names */
-#define popen(cmd, mode)  _popen(cmd, mode)
-#define pclose(file)      _pclose(file)
-#endif /* _WIN32 */
+/** 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;
 
-/** The current c mode/dialect */
-unsigned int c_mode = _C99|_GNUC;
+/** 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 bool           do_dump;
-static struct obstack cppflags_obst;
+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)
 {
@@ -61,13 +112,6 @@ static void initialize_firm(void)
        dump_keepalive_edges(1);
 }
 
-static void dump(ir_graph *irg, const char *suffix)
-{
-       if(do_dump) {
-               dump_ir_block_graph(irg, suffix);
-       }
-}
-
 static void get_output_name(char *buf, size_t buflen, const char *inputname,
                             const char *newext)
 {
@@ -141,8 +185,9 @@ static FILE* preprocess(FILE* in, const char *fname)
 static void do_link(const char *out, const char *in)
 {
        char buf[4096];
+       const char *flags = obstack_finish(&ldflags_obst);
 
-       snprintf(buf, sizeof(buf), "%s %s -o %s", LINKER, in, out);
+       snprintf(buf, sizeof(buf), LINKER " %s -o %s %s", flags, out, in);
        if(verbose) {
                puts(buf);
        }
@@ -210,6 +255,15 @@ static const char *get_tempdir(void)
        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)...
@@ -255,25 +309,6 @@ void lower_compound_params(void)
        lower_calls_with_compounds(&params);
 }
 
-static void create_firm_prog(translation_unit_t *unit)
-{
-       translation_unit_to_firm(unit);
-
-       int n_irgs = get_irp_n_irgs();
-       for(int i = 0; i < n_irgs; ++i) {
-               ir_graph *const irg = get_irp_irg(i);
-               dump(irg, "-start");
-       }
-
-       lower_compound_params();
-       lower_highlevel();
-
-       for(int i = 0; i < n_irgs; ++i) {
-               ir_graph *const irg = get_irp_irg(i);
-               dump(irg, "-lower");
-       }
-}
-
 typedef enum compile_mode_t {
        ParseOnly,
        Compile,
@@ -294,21 +329,13 @@ int main(int argc, char **argv)
 {
        initialize_firm();
 
-       init_symbol_table();
-       init_tokens();
-       init_types();
-       init_typehash();
-       init_lexer();
-       init_ast();
-       init_parser();
-       init_ast2firm();
-
        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];                                              \
@@ -327,92 +354,158 @@ int main(int argc, char **argv)
                }                                                                    \
        }
 
+#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(strncmp(arg, "-o", 2) == 0) {
-                       GET_ARG_AFTER(outname, "-o");
-               } else if(strcmp(arg, "-c") == 0) {
-                       mode = CompileAssemble;
-               } else if(strcmp(arg, "-S") == 0) {
-                       mode = Compile;
-               } else if(strcmp(arg, "--gcc") == 0) {
-                       c_mode |= _GNUC;
-               } else if(strcmp(arg, "--no-gcc") == 0) {
-                       c_mode &= ~_GNUC;
-               } else if(strcmp(arg, "--ms") == 0) {
-                       c_mode |= _MS;
-               } else if(strcmp(arg, "--no-ms") == 0) {
-                       c_mode &= ~_MS;
-               } else if(strcmp(arg, "--lextest") == 0) {
-                       mode = LexTest;
-               } else if(strcmp(arg, "--print-ast") == 0) {
-                       mode = PrintAst;
-               } else if(strcmp(arg, "--print-fluffy") == 0) {
-                       mode = PrintFluffy;
-               } else if(strcmp(arg, "-fsyntax-only") == 0) {
-                       mode = ParseOnly;
-               } else if(strncmp(arg, "-I", 2) == 0) {
-                       const char *opt;
-                       GET_ARG_AFTER(opt, "-I");
-                       obstack_printf(&cppflags_obst, " -I%s", opt);
-               } else if(strncmp(arg, "-D", 2) == 0) {
-                       const char *opt;
-                       GET_ARG_AFTER(opt, "-D");
-                       obstack_printf(&cppflags_obst, " -D%s", opt);
-               } else if(strcmp(arg, "--dump") == 0) {
-                       do_dump = true;
-               } else if(strcmp(arg, "--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 if(strcmp(arg, "-v") == 0) {
-                       verbose = 1;
-               } else if(arg[0] == '-' && arg[1] == 'f') {
-                       const char *opt;
-                       GET_ARG_AFTER(opt, "-f");
-                       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(arg[0] == '-' && arg[1] == '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(arg[0] == '-') {
-                       if (arg[1] == '\0') {
+               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(arg, "-pedantic") == 0) {
+                       } else if(strcmp(option, "pedantic") == 0) {
                                fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
-                       } else if(arg[1] == 'O' ||
-                                       arg[1] == 'f' ||
-                                       arg[1] == 'W' ||
-                                       arg[1] == 'g' ||
-                                       strncmp(arg + 1, "std=", 4) == 0) {
+                       } 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;
@@ -427,6 +520,9 @@ int main(int argc, char **argv)
                }
        }
 
+       /* we do the lowering in ast2firm */
+       firm_opt.lower_bitfields = FALSE;
+
        if(help_displayed) {
                return !argument_errors;
        }
@@ -435,7 +531,18 @@ int main(int argc, char **argv)
                return 1;
        }
 
-       FILE *out;
+       gen_firm_init();
+       init_symbol_table();
+       init_tokens();
+       init_types();
+       init_typehash();
+       init_basic_types();
+       init_lexer();
+       init_ast();
+       init_parser();
+       init_ast2firm();
+
+       FILE *out = NULL;
        char  outnamebuf[4096];
        if(outname == NULL) {
                switch(mode) {
@@ -502,9 +609,18 @@ int main(int argc, char **argv)
 
        FILE *preprocessed_in = preprocess(in, input);
        translation_unit_t *const unit = do_parsing(preprocessed_in, input);
-       pclose(preprocessed_in);
-       if(unit == NULL)
-               return 1;
+       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);
@@ -518,8 +634,7 @@ int main(int argc, char **argv)
                write_fluffy_decls(out, unit);
        }
 
-       gen_firm_init();
-       create_firm_prog(unit);
+       translation_unit_to_firm(unit);
 
        if(mode == ParseOnly) {
                return 0;
@@ -587,6 +702,7 @@ int main(int argc, char **argv)
        }
 
        obstack_free(&cppflags_obst, NULL);
+       obstack_free(&ldflags_obst, NULL);
 
        exit_ast2firm();
        exit_parser();