option was parsed twice
[cparser] / main.c
diff --git a/main.c b/main.c
index b137518..462258e 100644 (file)
--- a/main.c
+++ b/main.c
@@ -1,6 +1,6 @@
 /*
  * This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
 #define fdopen(fd, mode)         _fdopen(fd, mode)
 #define popen(cmd, mode)         _popen(cmd, mode)
 #define pclose(file)             _pclose(file)
+#define unlink(filename)         _unlink(filename)
 
 #else
 #include <unistd.h>
 #define HAVE_MKSTEMP
 #endif
 
-#ifndef WITH_LIBCORE
-#define WITH_LIBCORE
-#endif
-
 #include <libfirm/firm.h>
 #include <libfirm/be.h>
 
 #include "types.h"
 #include "type_hash.h"
 #include "parser.h"
+#include "type_t.h"
 #include "ast2firm.h"
 #include "diagnostic.h"
 #include "lang_features.h"
 #include "driver/firm_opt.h"
 #include "driver/firm_cmdline.h"
+#include "driver/firm_timing.h"
+#include "driver/firm_machine.h"
 #include "adt/error.h"
-#include "write_fluffy.h"
-#include "write_caml.h"
+#include "adt/strutil.h"
+#include "wrappergen/write_fluffy.h"
+#include "wrappergen/write_jna.h"
 #include "revision.h"
 #include "warning.h"
+#include "mangle.h"
+#include "printer.h"
 
 #ifndef PREPROCESSOR
-#ifdef __APPLE__
-#define PREPROCESSOR "gcc -E -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int -U__SIZE_TYPE__ -D__SIZE_TYPE__=unsigned\\ long -m32 -U__STRICT_ANSI__"
+#ifndef __WIN32__
+#define PREPROCESSOR "gcc -E -U__STRICT_ANSI__"
 #else
-#define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int -U__SIZE_TYPE__ -D__SIZE_TYPE__=unsigned\\ long -m32 -U__STRICT_ANSI__"
+#define PREPROCESSOR "cpp -U__STRICT_ANSI__"
 #endif
 #endif
 
 #ifndef LINKER
-#define LINKER    "gcc -m32"
+#define LINKER    "gcc"
 #endif
 
 #ifndef ASSEMBLER
-#ifdef __APPLE__
 #define ASSEMBLER "gcc -c -xassembler"
-#else
-#define ASSEMBLER "as --32"
-#endif
 #endif
 
-/** 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;
-
-/** use builtins for some libc functions */
-bool use_builtins = false;
+unsigned int       c_mode                    = _C89 | _ANSI | _C99 | _GNUC;
+unsigned int       machine_size              = 32;
+bool               byte_order_big_endian     = false;
+bool               char_is_signed            = true;
+bool               strict_mode               = false;
+bool               use_builtins              = false;
+atomic_type_kind_t wchar_atomic_kind         = ATOMIC_TYPE_INT;
+unsigned           force_long_double_size    = 0;
+bool               enable_main_collect2_hack = false;
+bool               freestanding              = false;
 
 /* to switch on printing of implicit casts */
 extern bool print_implicit_casts;
@@ -120,10 +115,29 @@ extern bool print_implicit_casts;
 /* to switch on printing of parenthesis to indicate operator precedence */
 extern bool print_parenthesis;
 
-static int             verbose;
-static struct obstack  cppflags_obst, ldflags_obst;
-static char            dep_target[1024];
-static const char     *outname;
+static machine_triple_t *target_machine;
+static const char       *target_triple;
+static int               verbose;
+static struct obstack    cppflags_obst;
+static struct obstack    ldflags_obst;
+static struct obstack    asflags_obst;
+static char              dep_target[1024];
+static const char       *outname;
+static bool              define_intmax_types;
+
+typedef enum lang_standard_t {
+       STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */
+       STANDARD_ANSI,    /* c89 (for C) or c++98 (for C++) */
+       STANDARD_C89,     /* ISO C90 (sic) */
+       STANDARD_C90,     /* ISO C90 as modified in amendment 1 */
+       STANDARD_C99,     /* ISO C99 */
+       STANDARD_GNU89,   /* ISO C90 plus GNU extensions (including some C99) */
+       STANDARD_GNU99,   /* ISO C99 plus GNU extensions */
+       STANDARD_CXX98,   /* ISO C++ 1998 plus amendments */
+       STANDARD_GNUXX98  /* ISO C++ 1998 plus amendments and GNU extensions */
+} lang_standard_t;
+
+static lang_standard_t standard;
 
 typedef struct file_list_entry_t file_list_entry_t;
 
@@ -131,74 +145,47 @@ typedef enum filetype_t {
        FILETYPE_AUTODETECT,
        FILETYPE_C,
        FILETYPE_PREPROCESSED_C,
+       FILETYPE_CXX,
+       FILETYPE_PREPROCESSED_CXX,
        FILETYPE_ASSEMBLER,
        FILETYPE_PREPROCESSED_ASSEMBLER,
        FILETYPE_OBJECT,
+       FILETYPE_IR,
        FILETYPE_UNKNOWN
 } filetype_t;
 
 struct file_list_entry_t {
-       const char        *name; /**< filename or NULL for stdin */
-       filetype_t         type;
+       const char  *name; /**< filename or NULL for stdin */
+       filetype_t   type;
        file_list_entry_t *next;
 };
 
-#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 file_list_entry_t *temp_files;
 
 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;
-               ++i;
-       }
-       if(last_dot == 0xffffffff)
-               last_dot = i;
-
-       if(last_dot >= buflen)
-               panic("filename too long");
-       memcpy(buf, inputname, last_dot);
-
-       size_t extlen = strlen(newext) + 1;
-       if(extlen + last_dot >= buflen)
+       if (inputname == NULL)
+               inputname = "a";
+
+       char const *const last_slash = strrchr(inputname, '/');
+       char const *const filename   =
+               last_slash != NULL ? last_slash + 1 : inputname;
+       char const *const last_dot   = strrchr(filename, '.');
+       char const *const name_end   =
+               last_dot != NULL ? last_dot : strchr(filename, '\0');
+
+       int const len = snprintf(buf, buflen, "%.*s%s",
+                       (int)(name_end - filename), filename, newext);
+#ifdef _WIN32
+       if (len < 0 || buflen <= (size_t)len)
+#else
+       if (buflen <= (size_t)len)
+#endif
                panic("filename too long");
-       memcpy(buf+last_dot, newext, extlen);
 }
 
-#include "builtins.h"
+#include "gen_builtins.h"
 
 static translation_unit_t *do_parsing(FILE *const in, const char *const input_name)
 {
@@ -223,99 +210,218 @@ static void lextest(FILE *in, const char *fname)
        do {
                lexer_next_preprocessing_token();
                print_token(stdout, &lexer_token);
-               puts("");
-       } while(lexer_token.type != T_EOF);
+               putchar('\n');
+       } while (lexer_token.type != T_EOF);
 }
 
 static void add_flag(struct obstack *obst, const char *format, ...)
 {
+       char buf[65536];
        va_list ap;
-       va_start(ap, format);
 
-       char buf[4096];
-       vsnprintf(buf, sizeof(buf), format, ap);
+       va_start(ap, format);
+#ifdef _WIN32
+       int len =
+#endif
+               vsnprintf(buf, sizeof(buf), format, ap);
+       va_end(ap);
 
-       /* escape stuff... */
        obstack_1grow(obst, ' ');
+#ifdef _WIN32
+       obstack_1grow(obst, '"');
+       obstack_grow(obst, buf, len);
+       obstack_1grow(obst, '"');
+#else
+       /* escape stuff... */
        for (char *c = buf; *c != '\0'; ++c) {
                switch(*c) {
-               case '"':
-               case '\'':
-               case '`':
                case ' ':
-               case '\t':
-               case '\n':
-               case '\r':
-               case '\\':
+               case '"':
                case '$':
+               case '&':
                case '(':
                case ')':
+               case ';':
+               case '<':
+               case '>':
+               case '\'':
+               case '\\':
+               case '\n':
+               case '\r':
+               case '\t':
+               case '`':
+               case '|':
                        obstack_1grow(obst, '\\');
-                       /* fallthrough */
+                       /* FALLTHROUGH */
                default:
                        obstack_1grow(obst, *c);
                        break;
                }
        }
+#endif
+}
 
-       va_end(ap);
+static const char *type_to_string(type_t *type)
+{
+       assert(type->kind == TYPE_ATOMIC);
+       return get_atomic_kind_name(type->atomic.akind);
 }
 
-static FILE *preprocess(const char *fname)
+static FILE *preprocess(const char *fname, filetype_t filetype)
 {
-       obstack_1grow(&cppflags_obst, '\0');
-       const char *flags = obstack_finish(&cppflags_obst);
+       static const char *common_flags = NULL;
+
+       if (common_flags == NULL) {
+               obstack_1grow(&cppflags_obst, '\0');
+               const char *flags = obstack_finish(&cppflags_obst);
+
+               /* setup default defines */
+               add_flag(&cppflags_obst, "-U__WCHAR_TYPE__");
+               add_flag(&cppflags_obst, "-D__WCHAR_TYPE__=%s", type_to_string(type_wchar_t));
+               add_flag(&cppflags_obst, "-U__SIZE_TYPE__");
+               add_flag(&cppflags_obst, "-D__SIZE_TYPE__=%s", type_to_string(type_size_t));
+
+               add_flag(&cppflags_obst, "-U__VERSION__");
+               add_flag(&cppflags_obst, "-D__VERSION__=\"%s\"", cparser_REVISION);
+
+               if (define_intmax_types) {
+                       add_flag(&cppflags_obst, "-U__INTMAX_TYPE__");
+                       add_flag(&cppflags_obst, "-D__INTMAX_TYPE__=%s", type_to_string(type_intmax_t));
+                       add_flag(&cppflags_obst, "-U__UINTMAX_TYPE__");
+                       add_flag(&cppflags_obst, "-D__UINTMAX_TYPE__=%s", type_to_string(type_uintmax_t));
+               }
 
-       obstack_printf(&cppflags_obst, "%s", PREPROCESSOR);
+               if (flags[0] != '\0') {
+                       size_t len = strlen(flags);
+                       obstack_1grow(&cppflags_obst, ' ');
+                       obstack_grow(&cppflags_obst, flags, len);
+               }
+               obstack_1grow(&cppflags_obst, '\0');
+               common_flags = obstack_finish(&cppflags_obst);
+       }
+
+       assert(obstack_object_size(&cppflags_obst) == 0);
+
+       const char *preprocessor = getenv("CPARSER_PP");
+       if (preprocessor != NULL) {
+               obstack_printf(&cppflags_obst, "%s ", preprocessor);
+       } else {
+               if (target_triple != NULL)
+                       obstack_printf(&cppflags_obst, "%s-", target_triple);
+               obstack_printf(&cppflags_obst, PREPROCESSOR);
+       }
+
+       switch (filetype) {
+       case FILETYPE_C:
+               add_flag(&cppflags_obst, "-std=c99");
+               break;
+       case FILETYPE_CXX:
+               add_flag(&cppflags_obst, "-std=c++98");
+               break;
+       case FILETYPE_ASSEMBLER:
+               add_flag(&cppflags_obst, "-x");
+               add_flag(&cppflags_obst, "assembler-with-cpp");
+               break;
+       default:
+               break;
+       }
+       obstack_printf(&cppflags_obst, "%s", common_flags);
+
+       /* handle dependency generation */
        if (dep_target[0] != '\0') {
                add_flag(&cppflags_obst, "-MF");
-               add_flag(&cppflags_obst, "%s", dep_target);
+               add_flag(&cppflags_obst, dep_target);
                if (outname != NULL) {
                                add_flag(&cppflags_obst, "-MQ");
-                               add_flag(&cppflags_obst, "%s", outname);
+                               add_flag(&cppflags_obst, outname);
                }
        }
-       if (flags[0] != '\0') {
-               obstack_printf(&cppflags_obst, " %s", flags);
-       }
-       add_flag(&cppflags_obst, "%s", fname);
-
+       add_flag(&cppflags_obst, fname);
        obstack_1grow(&cppflags_obst, '\0');
-       const char *buf = obstack_finish(&cppflags_obst);
-       if(verbose) {
-               puts(buf);
-       }
 
-       FILE *f = popen(buf, "r");
-       if(f == NULL) {
+       char *commandline = obstack_finish(&cppflags_obst);
+       if (verbose) {
+               puts(commandline);
+       }
+       FILE *f = popen(commandline, "r");
+       if (f == NULL) {
                fprintf(stderr, "invoking preprocessor failed\n");
-               exit(1);
+               exit(EXIT_FAILURE);
        }
+       /* we don't really need that anymore */
+       obstack_free(&cppflags_obst, commandline);
 
        return f;
 }
 
 static void assemble(const char *out, const char *in)
 {
-       char buf[4096];
+       obstack_1grow(&asflags_obst, '\0');
+       const char *flags = obstack_finish(&asflags_obst);
 
-       snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
-       if(verbose) {
-               puts(buf);
+       const char *assembler = getenv("CPARSER_AS");
+       if (assembler != NULL) {
+               obstack_printf(&asflags_obst, "%s", assembler);
+       } else {
+               if (target_triple != NULL)
+                       obstack_printf(&asflags_obst, "%s-", target_triple);
+               obstack_printf(&asflags_obst, "%s", ASSEMBLER);
        }
+       if (flags[0] != '\0')
+               obstack_printf(&asflags_obst, " %s", flags);
+
+       obstack_printf(&asflags_obst, " %s -o %s", in, out);
+       obstack_1grow(&asflags_obst, '\0');
 
-       int err = system(buf);
-       if(err != 0) {
+       char *commandline = obstack_finish(&asflags_obst);
+       if (verbose) {
+               puts(commandline);
+       }
+       int err = system(commandline);
+       if (err != EXIT_SUCCESS) {
                fprintf(stderr, "assembler reported an error\n");
-               exit(1);
+               exit(EXIT_FAILURE);
        }
+       obstack_free(&asflags_obst, commandline);
+}
+
+static void print_file_name(const char *file)
+{
+       add_flag(&ldflags_obst, "-print-file-name=%s", file);
+
+       obstack_1grow(&ldflags_obst, '\0');
+       const char *flags = obstack_finish(&ldflags_obst);
+
+       /* construct commandline */
+       const char *linker = getenv("CPARSER_LINK");
+       if (linker != NULL) {
+               obstack_printf(&ldflags_obst, "%s ", linker);
+       } else {
+               if (target_triple != NULL)
+                       obstack_printf(&ldflags_obst, "%s-", target_triple);
+               obstack_printf(&ldflags_obst, "%s ", LINKER);
+       }
+       obstack_printf(&ldflags_obst, "%s ", linker);
+       obstack_printf(&ldflags_obst, "%s", flags);
+       obstack_1grow(&ldflags_obst, '\0');
+
+       char *commandline = obstack_finish(&ldflags_obst);
+       if (verbose) {
+               puts(commandline);
+       }
+       int err = system(commandline);
+       if (err != EXIT_SUCCESS) {
+               fprintf(stderr, "linker reported an error\n");
+               exit(EXIT_FAILURE);
+       }
+       obstack_free(&ldflags_obst, commandline);
 }
 
 static const char *try_dir(const char *dir)
 {
-       if(dir == NULL)
+       if (dir == NULL)
                return dir;
-       if(access(dir, R_OK | W_OK | X_OK) == 0)
+       if (access(dir, R_OK | W_OK | X_OK) == 0)
                return dir;
        return NULL;
 }
@@ -324,29 +430,29 @@ static const char *get_tempdir(void)
 {
        static const char *tmpdir = NULL;
 
-       if(tmpdir != NULL)
+       if (tmpdir != NULL)
                return tmpdir;
 
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir(getenv("TMPDIR"));
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir(getenv("TMP"));
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir(getenv("TEMP"));
 
 #ifdef P_tmpdir
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir(P_tmpdir);
 #endif
 
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir("/var/tmp");
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir("/usr/tmp");
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = try_dir("/tmp");
 
-       if(tmpdir == NULL)
+       if (tmpdir == NULL)
                tmpdir = ".";
 
        return tmpdir;
@@ -372,33 +478,43 @@ static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix)
        snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix);
 
        int fd = mkstemp(buffer);
-       if(fd == -1) {
+       if (fd == -1) {
                fprintf(stderr, "couldn't create temporary file: %s\n",
                        strerror(errno));
-               exit(1);
+               exit(EXIT_FAILURE);
        }
        FILE *out = fdopen(fd, "w");
-       if(out == NULL) {
+       if (out == NULL) {
                fprintf(stderr, "couldn't create temporary file FILE*\n");
-               exit(1);
+               exit(EXIT_FAILURE);
        }
 
+       file_list_entry_t *entry = xmalloc(sizeof(*entry));
+       memset(entry, 0, sizeof(*entry));
+
+       size_t  name_len = strlen(buffer) + 1;
+       char   *name     = malloc(name_len);
+       memcpy(name, buffer, name_len);
+       entry->name      = name;
+
+       entry->next = temp_files;
+       temp_files  = entry;
+
        return out;
 }
 
-/**
- * Do the necessary lowering for compound parameters.
- */
-void lower_compound_params(void)
+static void free_temp_files(void)
 {
-       lower_params_t params;
-
-       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(&params);
+       file_list_entry_t *entry = temp_files;
+       file_list_entry_t *next;
+       for ( ; entry != NULL; entry = next) {
+               next = entry->next;
+
+               unlink(entry->name);
+               free((char*) entry->name);
+               free(entry);
+       }
+       temp_files = NULL;
 }
 
 typedef enum compile_mode_t {
@@ -407,46 +523,54 @@ typedef enum compile_mode_t {
        ParseOnly,
        Compile,
        CompileDump,
+       CompileExportIR,
        CompileAssemble,
        CompileAssembleLink,
        LexTest,
        PrintAst,
        PrintFluffy,
-       PrintCaml
+       PrintJna
 } compile_mode_t;
 
 static void usage(const char *argv0)
 {
-       fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
+       fprintf(stderr, "Usage %s [options] input [-o output]\n", argv0);
 }
 
-static void print_cparser_version(void) {
-       firm_version_t ver;
-       firm_get_version(&ver);
-
+static void print_cparser_version(void)
+{
        printf("cparser (%s) using libFirm (%u.%u",
-               cparser_REVISION, ver.major, ver.minor);
-       if(ver.revision[0] != 0) {
+              cparser_REVISION, ir_get_version_major(),
+              ir_get_version_minor());
+
+       const char *revision = ir_get_version_revision();
+       if (revision[0] != 0) {
                putchar(' ');
-               fputs(ver.revision, stdout);
+               fputs(revision, stdout);
        }
-       if(ver.build[0] != 0) {
+
+       const char *build = ir_get_version_build();
+       if (build[0] != 0) {
                putchar(' ');
-               fputs(ver.build, stdout);
+               fputs(build, stdout);
        }
-       puts(")\n");
+       puts(")");
+       puts("This is free software; see the source for copying conditions.  There is NO\n"
+            "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
 }
 
-static void set_be_option(const char *arg)
+static void print_help(const char *argv0)
 {
-       int res = firm_be_option(arg);
-       (void) res;
-       assert(res);
+       usage(argv0);
+       puts("");
+       puts("\t-fhelp     Display help about firm optimisation options");
+       puts("\t-bhelp     Display help about firm backend options");
+       puts("A big number of gcc flags is also supported");
 }
 
-static void set_option(const char *arg)
+static void set_be_option(const char *arg)
 {
-       int res = firm_option(arg);
+       int res = be_parse_arg(arg);
        (void) res;
        assert(res);
 }
@@ -457,26 +581,12 @@ static void copy_file(FILE *dest, FILE *input)
 
        while (!feof(input) && !ferror(dest)) {
                size_t read = fread(buf, 1, sizeof(buf), input);
-               if(fwrite(buf, 1, read, dest) != read) {
+               if (fwrite(buf, 1, read, dest) != read) {
                        perror("couldn't write output");
                }
        }
 }
 
-static inline bool streq(char const* a, char const* b)
-{
-       return strcmp(a, b) == 0;
-}
-
-static inline bool strstart(char const* str, char const* start)
-{
-       do {
-               if (*start == '\0')
-                       return true;
-       } while (*str++ == *start++);
-       return false;
-}
-
 static FILE *open_file(const char *filename)
 {
        if (streq(filename, "-")) {
@@ -484,10 +594,10 @@ static FILE *open_file(const char *filename)
        }
 
        FILE *in = fopen(filename, "r");
-       if(in == NULL) {
+       if (in == NULL) {
                fprintf(stderr, "Couldn't open '%s': %s\n", filename,
                                strerror(errno));
-               exit(1);
+               exit(EXIT_FAILURE);
        }
 
        return in;
@@ -497,6 +607,8 @@ static filetype_t get_filetype_from_string(const char *string)
 {
        if (streq(string, "c") || streq(string, "c-header"))
                return FILETYPE_C;
+       if (streq(string, "c++") || streq(string, "c++-header"))
+               return FILETYPE_CXX;
        if (streq(string, "assembler"))
                return FILETYPE_PREPROCESSED_ASSEMBLER;
        if (streq(string, "assembler-with-cpp"))
@@ -507,11 +619,56 @@ static filetype_t get_filetype_from_string(const char *string)
        return FILETYPE_UNKNOWN;
 }
 
+static bool init_os_support(void)
+{
+       const char *os = target_machine->operating_system;
+       wchar_atomic_kind         = ATOMIC_TYPE_INT;
+       force_long_double_size    = 0;
+       enable_main_collect2_hack = false;
+       define_intmax_types       = false;
+
+       if (strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL
+                       || streq(os, "solaris")) {
+               set_create_ld_ident(create_name_linux_elf);
+       } else if (streq(os, "darwin")) {
+               force_long_double_size = 16;
+               set_create_ld_ident(create_name_macho);
+               define_intmax_types = true;
+       } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) {
+               wchar_atomic_kind         = ATOMIC_TYPE_USHORT;
+               enable_main_collect2_hack = true;
+               set_create_ld_ident(create_name_win32);
+       } else {
+               return false;
+       }
+
+       return true;
+}
+
+static bool parse_target_triple(const char *arg)
+{
+       machine_triple_t *triple = firm_parse_machine_triple(arg);
+       if (triple == NULL) {
+               fprintf(stderr, "Target-triple is not in the form 'cpu_type-manufacturer-operating_system'\n");
+               return false;
+       }
+       target_machine = triple;
+       return true;
+}
+
+static void setup_target_machine(void)
+{
+       if (!setup_firm_for_machine(target_machine))
+               exit(1);
+       init_os_support();
+}
+
 int main(int argc, char **argv)
 {
-       initialize_firm();
+       firm_early_init();
 
        const char        *dumpfunction         = NULL;
+       const char        *print_file_name_file = NULL;
        compile_mode_t     mode                 = CompileAssembleLink;
        int                opt_level            = 1;
        int                result               = EXIT_SUCCESS;
@@ -519,23 +676,35 @@ int main(int argc, char **argv)
        file_list_entry_t *files                = NULL;
        file_list_entry_t *last_file            = NULL;
        bool               construct_dep_target = false;
+       bool               do_timing            = false;
+       bool               profile_generate     = false;
+       bool               profile_use          = false;
        struct obstack     file_obst;
 
+       atexit(free_temp_files);
+
+       /* hack for now... */
+       if (strstr(argv[0], "pptest") != NULL) {
+               extern int pptest_main(int argc, char **argv);
+               return pptest_main(argc, argv);
+       }
+
        obstack_init(&cppflags_obst);
        obstack_init(&ldflags_obst);
+       obstack_init(&asflags_obst);
        obstack_init(&file_obst);
 
 #define GET_ARG_AFTER(def, args)                                             \
        def = &arg[sizeof(args)-1];                                              \
-       if(def[0] == '\0') {                                                     \
+       if (def[0] == '\0') {                                                     \
                ++i;                                                                 \
-               if(i >= argc) {                                                      \
+               if (i >= argc) {                                                      \
                        fprintf(stderr, "error: expected argument after '" args "'\n");  \
                        argument_errors = true;                                          \
                        break;                                                           \
                }                                                                    \
                def = argv[i];                                                       \
-               if(def[0] == '-' && def[1] != '\0') {                                \
+               if (def[0] == '-' && def[1] != '\0') {                                \
                        fprintf(stderr, "error: expected argument after '" args "'\n");  \
                        argument_errors = true;                                          \
                        continue;                                                        \
@@ -544,95 +713,78 @@ int main(int argc, char **argv)
 
 #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0')
 
-       /* early options parsing (find out optimisation level) */
-       for(int i = 1; i < argc; ++i) {
+       /* early options parsing (find out optimisation level and OS) */
+       for (int i = 1; i < argc; ++i) {
                const char *arg = argv[i];
-               if(arg[0] != '-')
+               if (arg[0] != '-')
                        continue;
 
                const char *option = &arg[1];
-               if(option[0] == 'O') {
+               if (option[0] == 'O') {
                        sscanf(&option[1], "%d", &opt_level);
                }
        }
 
-       /* apply optimisation level */
-       switch(opt_level) {
-       case 0:
-               set_option("no-opt");
-               break;
-       case 1:
-               set_option("no-inline");
-               break;
-       default:
-       case 4:
-               set_option("strict-aliasing");
-               use_builtins = true;
-               /* fallthrough */
-       case 3:
-               set_option("cond-eval");
-               set_option("if-conv");
-               /* fallthrough */
-       case 2:
-               set_option("inline");
-               set_option("deconv");
-               set_be_option("omitfp");
-               break;
+       const char *target = getenv("TARGET");
+       if (target != NULL)
+               parse_target_triple(target);
+       if (target_machine == NULL) {
+               target_machine = firm_get_host_machine();
        }
-
-#ifdef __APPLE__
-       /* Darwin expects the stack to be aligned to 16byte boundary */
-       firm_be_option("ia32-stackalign=4");
-#endif
+       choose_optimization_pack(opt_level);
+       setup_target_machine();
 
        /* parse rest of options */
-       filetype_t  forced_filetype = FILETYPE_AUTODETECT;
-       bool        help_displayed  = false;
-       bool        argument_errors = false;
-       for(int i = 1; i < argc; ++i) {
+       standard                   = STANDARD_DEFAULT;
+       unsigned   features_on     = 0;
+       unsigned   features_off    = 0;
+       filetype_t forced_filetype = FILETYPE_AUTODETECT;
+       bool       help_displayed  = false;
+       bool       argument_errors = false;
+       for (int i = 1; i < argc; ++i) {
                const char *arg = argv[i];
-               if(arg[0] == '-' && arg[1] != 0) {
+               if (arg[0] == '-' && arg[1] != '\0') {
                        /* an option */
                        const char *option = &arg[1];
-                       if(option[0] == 'o') {
+                       if (option[0] == 'o') {
                                GET_ARG_AFTER(outname, "-o");
-                       } else if(option[0] == 'g') {
+                       } else if (option[0] == 'g') {
                                set_be_option("debuginfo=stabs");
                                set_be_option("omitfp=no");
                                set_be_option("ia32-nooptcc=yes");
-                       } else if(SINGLE_OPTION('c')) {
+                       } else if (SINGLE_OPTION('c')) {
                                mode = CompileAssemble;
-                       } else if(SINGLE_OPTION('E')) {
+                       } else if (SINGLE_OPTION('E')) {
                                mode = PreprocessOnly;
-                       } else if(SINGLE_OPTION('S')) {
+                       } else if (SINGLE_OPTION('S')) {
                                mode = Compile;
-                       } else if(option[0] == 'O') {
+                       } else if (option[0] == 'O') {
                                continue;
-                       } else if(option[0] == 'I') {
+                       } else if (option[0] == 'I') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-I");
                                add_flag(&cppflags_obst, "-I%s", opt);
-                       } else if(option[0] == 'D') {
+                       } else if (option[0] == 'D') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-D");
                                add_flag(&cppflags_obst, "-D%s", opt);
-                       } else if(option[0] == 'U') {
+                       } else if (option[0] == 'U') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-U");
                                add_flag(&cppflags_obst, "-U%s", opt);
-                       } else if(option[0] == 'l') {
+                       } else if (option[0] == 'l') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-l");
                                add_flag(&ldflags_obst, "-l%s", opt);
-                       } else if(option[0] == 'L') {
+                       } else if (option[0] == 'L') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-L");
                                add_flag(&ldflags_obst, "-L%s", opt);
-                       } else if(SINGLE_OPTION('v')) {
+                       } else if (SINGLE_OPTION('v')) {
                                verbose = 1;
-                       } else if(SINGLE_OPTION('w')) {
-                               inhibit_all_warnings = true;
-                       } else if(option[0] == 'x') {
+                       } else if (SINGLE_OPTION('w')) {
+                               memset(&warning, 0, sizeof(warning));
+                       } else if (option[0] == 'x') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-x");
                                forced_filetype = get_filetype_from_string(opt);
@@ -647,7 +799,7 @@ int main(int argc, char **argv)
                                   streq(option, "MD")) {
                            construct_dep_target = true;
                                add_flag(&cppflags_obst, "-%s", option);
-                       } else if(streq(option, "MM")  ||
+                       } else if (streq(option, "MM")  ||
                                   streq(option, "MP")) {
                                add_flag(&cppflags_obst, "-%s", option);
                        } else if (streq(option, "MT") ||
@@ -657,17 +809,48 @@ int main(int argc, char **argv)
                                GET_ARG_AFTER(opt, "-MT");
                                add_flag(&cppflags_obst, "-%s", option);
                                add_flag(&cppflags_obst, "%s", opt);
+                       } else if (streq(option, "include")) {
+                               const char *opt;
+                               GET_ARG_AFTER(opt, "-include");
+                               add_flag(&cppflags_obst, "-include");
+                               add_flag(&cppflags_obst, "%s", opt);
+                       } else if (streq(option, "isystem")) {
+                               const char *opt;
+                               GET_ARG_AFTER(opt, "-isystem");
+                               add_flag(&cppflags_obst, "-isystem");
+                               add_flag(&cppflags_obst, "%s", opt);
+#if defined(linux) || defined(__linux) || defined(__linux__) || defined(__CYGWIN__)
+                       } else if (streq(option, "pthread")) {
+                               /* set flags for the preprocessor */
+                               add_flag(&cppflags_obst, "-D_REENTRANT");
+                               /* set flags for the linker */
+                               add_flag(&ldflags_obst, "-lpthread");
+#endif
+                       } else if (streq(option, "nostdinc")
+                                       || streq(option, "trigraphs")) {
+                               /* pass these through to the preprocessor */
+                               add_flag(&cppflags_obst, "%s", arg);
                        } else if (streq(option, "pipe")) {
                                /* here for gcc compatibility */
+                       } else if (streq(option, "static")) {
+                               add_flag(&ldflags_obst, "-static");
+                       } else if (streq(option, "shared")) {
+                               add_flag(&ldflags_obst, "-shared");
                        } else if (option[0] == 'f') {
                                char const *orig_opt;
                                GET_ARG_AFTER(orig_opt, "-f");
 
-                               if (strstart(orig_opt, "align-loops=") ||
-                                   strstart(orig_opt, "align-jumps=") ||
-                                   strstart(orig_opt, "align-functions=")) {
+                               if (strstart(orig_opt, "input-charset=")) {
+                                       char const* const encoding = strchr(orig_opt, '=') + 1;
+                                       select_input_encoding(encoding);
+                               } else if (strstart(orig_opt, "align-loops=") ||
+                                          strstart(orig_opt, "align-jumps=") ||
+                                          strstart(orig_opt, "align-functions=")) {
                                        fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
+                               } else if (strstart(orig_opt, "message-length=")) {
+                                       /* ignore: would only affect error message format */
                                } else {
+                                       /* -f options which have an -fno- variant */
                                        char const *opt         = orig_opt;
                                        bool        truth_value = true;
                                        if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
@@ -675,27 +858,46 @@ int main(int argc, char **argv)
                                                opt += 3;
                                        }
 
-                                       if (streq(opt, "dollars-in-identifiers")) {
-                                               allow_dollar_in_symbol = truth_value;
-                                       } if (streq(opt, "builtins")) {
+                                       if (streq(opt, "builtins")) {
                                                use_builtins = truth_value;
-                                       } else if (streq(opt, "short-wchar")) {
-                                               opt_short_wchar_t = truth_value;
-                                       } else if (streq(opt, "syntax-only")) {
-                                               mode = truth_value ? ParseOnly : CompileAssembleLink;
+                                       } else if (streq(opt, "dollars-in-identifiers")) {
+                                               allow_dollar_in_symbol = truth_value;
                                        } else if (streq(opt, "omit-frame-pointer")) {
                                                set_be_option(truth_value ? "omitfp" : "omitfp=no");
+                                       } else if (streq(opt, "short-wchar")) {
+                                               wchar_atomic_kind = truth_value ? ATOMIC_TYPE_USHORT
+                                                       : ATOMIC_TYPE_INT;
+                                       } else if (streq(opt, "signed-char")) {
+                                               char_is_signed = truth_value;
                                        } else if (streq(opt, "strength-reduce")) {
                                                firm_option(truth_value ? "strength-red" : "no-strength-red");
+                                       } else if (streq(opt, "syntax-only")) {
+                                               mode = truth_value ? ParseOnly : CompileAssembleLink;
+                                       } else if (streq(opt, "unsigned-char")) {
+                                               char_is_signed = !truth_value;
+                                       } else if (streq(opt, "freestanding")) {
+                                               freestanding = truth_value;
+                                       } else if (streq(opt, "hosted")) {
+                                               freestanding = !truth_value;
+                                       } else if (streq(opt, "profile-generate")) {
+                                               profile_generate = truth_value;
+                                       } else if (streq(opt, "profile-use")) {
+                                               profile_use = truth_value;
+                                       } else if (!truth_value &&
+                                                  streq(opt, "asynchronous-unwind-tables")) {
+                                           /* nothing todo, a gcc feature which we don't support
+                                            * anyway was deactivated */
+                                       } else if (streq(orig_opt, "verbose-asm")) {
+                                               /* ignore: we always print verbose assembler */
                                        } else if (streq(opt, "fast-math")               ||
                                                   streq(opt, "jump-tables")             ||
-                                                  streq(opt, "unroll-loops")            ||
                                                   streq(opt, "expensive-optimizations") ||
                                                   streq(opt, "common")                  ||
-                                                  streq(opt, "PIC")                     ||
+                                                  streq(opt, "optimize-sibling-calls")  ||
                                                   streq(opt, "align-loops")             ||
                                                   streq(opt, "align-jumps")             ||
-                                                  streq(opt, "align-functions")) {
+                                                  streq(opt, "align-functions")         ||
+                                                  streq(opt, "PIC")) {
                                                fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
                                        } else {
                                                int res = firm_option(orig_opt);
@@ -712,7 +914,7 @@ int main(int argc, char **argv)
                        } else if (option[0] == 'b') {
                                const char *opt;
                                GET_ARG_AFTER(opt, "-b");
-                               int res = firm_be_option(opt);
+                               int res = be_parse_arg(opt);
                                if (res == 0) {
                                        fprintf(stderr, "error: unknown Firm backend option '-b %s'\n",
                                                opt);
@@ -723,41 +925,69 @@ int main(int argc, char **argv)
                                        strncpy(cpu_arch, opt, sizeof(cpu_arch));
                                }
                        } else if (option[0] == 'W') {
-                               if (strstart(option + 1, "l,")) // a gcc-style linker option
-                               {
+                               if (option[1] == '\0') {
+                                       /* ignore -W, our defaults are already quite verbose */
+                               } else if (strstart(option + 1, "p,")) {
+                                       // pass options directly to the preprocessor
+                                       const char *opt;
+                                       GET_ARG_AFTER(opt, "-Wp,");
+                                       add_flag(&cppflags_obst, "-Wp,%s", opt);
+                               } else if (strstart(option + 1, "l,")) {
+                                       // pass options directly to the linker
                                        const char *opt;
                                        GET_ARG_AFTER(opt, "-Wl,");
                                        add_flag(&ldflags_obst, "-Wl,%s", opt);
+                               } else if (streq(option + 1, "no-trigraphs")
+                                                       || streq(option + 1, "undef")) {
+                                       add_flag(&cppflags_obst, "%s", arg);
+                               } else {
+                                       set_warning_opt(&option[1]);
                                }
-                               else set_warning_opt(&option[1]);
-                       } else if(option[0] == 'm') {
+                       } else if (option[0] == 'm') {
                                /* -m options */
                                const char *opt;
                                char arch_opt[64];
 
                                GET_ARG_AFTER(opt, "-m");
-                               if (strstart(opt, "arch=")) {
+                               if (strstart(opt, "target=")) {
+                                       GET_ARG_AFTER(opt, "-mtarget=");
+                                       if (!parse_target_triple(opt)) {
+                                               argument_errors = true;
+                                       } else {
+                                               setup_target_machine();
+                                               target_triple = opt;
+                                       }
+                               } else if (strstart(opt, "triple=")) {
+                                       GET_ARG_AFTER(opt, "-mtriple=");
+                                       if (!parse_target_triple(opt)) {
+                                               argument_errors = true;
+                                       } else {
+                                               setup_target_machine();
+                                               target_triple = opt;
+                                       }
+                               } else if (strstart(opt, "arch=")) {
                                        GET_ARG_AFTER(opt, "-march=");
                                        snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
-                                       int res = firm_be_option(arch_opt);
-                                       if (res == 0)
+                                       int res = be_parse_arg(arch_opt);
+                                       if (res == 0) {
+                                               fprintf(stderr, "Unknown architecture '%s'\n", arch_opt);
                                                argument_errors = true;
-                                       else {
+                                       else {
                                                snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
-                                               int res = firm_be_option(arch_opt);
+                                               int res = be_parse_arg(arch_opt);
                                                if (res == 0)
                                                        argument_errors = true;
                                        }
                                } else if (strstart(opt, "tune=")) {
                                        GET_ARG_AFTER(opt, "-mtune=");
                                        snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt);
-                                       int res = firm_be_option(arch_opt);
+                                       int res = be_parse_arg(arch_opt);
                                        if (res == 0)
                                                argument_errors = true;
                                } else if (strstart(opt, "cpu=")) {
                                        GET_ARG_AFTER(opt, "-mcpu=");
                                        snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt);
-                                       int res = firm_be_option(arch_opt);
+                                       int res = be_parse_arg(arch_opt);
                                        if (res == 0)
                                                argument_errors = true;
                                } else if (strstart(opt, "fpmath=")) {
@@ -770,34 +1000,42 @@ int main(int argc, char **argv)
                                                fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n");
                                                argument_errors = true;
                                        }
-                                       if(!argument_errors) {
+                                       if (!argument_errors) {
                                                snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt);
-                                               int res = firm_be_option(arch_opt);
+                                               int res = be_parse_arg(arch_opt);
                                                if (res == 0)
                                                        argument_errors = true;
                                        }
                                } else if (strstart(opt, "preferred-stack-boundary=")) {
                                        GET_ARG_AFTER(opt, "-mpreferred-stack-boundary=");
                                        snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt);
-                                       int res = firm_be_option(arch_opt);
+                                       int res = be_parse_arg(arch_opt);
                                        if (res == 0)
                                                argument_errors = true;
                                } else if (streq(opt, "omit-leaf-frame-pointer")) {
                                        set_be_option("omitleaffp=1");
                                } else if (streq(opt, "no-omit-leaf-frame-pointer")) {
                                        set_be_option("omitleaffp=0");
+                               } else if (streq(opt, "rtd")) {
+                                       default_calling_convention = CC_STDCALL;
+                               } else if (strstart(opt, "regparm=")) {
+                                       fprintf(stderr, "error: regparm convention not supported yet\n");
+                                       argument_errors = true;
+                               } else if (streq(opt, "soft-float")) {
+                                       fprintf(stderr, "error: software floatingpoint not supported yet\n");
+                                       argument_errors = true;
                                } else {
-                                       char *endptr;
-                                       long int value = strtol(opt, &endptr, 10);
-                                       if (*endptr != '\0') {
+                                       long int value = strtol(opt, NULL, 10);
+                                       if (value == 0) {
                                                fprintf(stderr, "error: wrong option '-m %s'\n",  opt);
                                                argument_errors = true;
-                                       }
-                                       if (value != 16 && value != 32 && value != 64) {
+                                       } else 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;
+                                               add_flag(&asflags_obst, "-m%u", machine_size);
+                                               add_flag(&ldflags_obst, "-m%u", machine_size);
                                        }
                                }
                        } else if (streq(option, "pg")) {
@@ -806,36 +1044,42 @@ int main(int argc, char **argv)
                        } else if (streq(option, "pedantic") ||
                                   streq(option, "ansi")) {
                                fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
-                       } else if (streq(option, "shared")) {
-                               add_flag(&ldflags_obst, "-shared");
                        } else if (strstart(option, "std=")) {
-                               if (streq(&option[4], "c99")) {
-                                       c_mode = _C89|_C99;
-                               } else if (streq(&option[4], "c89")) {
-                                       c_mode = _C89;
-                               } else if (streq(&option[4], "gnu99")) {
-                                       c_mode = _C89|_C99|_GNUC;
-                               } else if (streq(&option[4], "microsoft")) {
-                                       c_mode = _C89|_C99|_MS;
-                               } else
-                                       fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg);
+                               const char *const o = &option[4];
+                               standard =
+                                       streq(o, "c++")            ? STANDARD_CXX98   :
+                                       streq(o, "c++98")          ? STANDARD_CXX98   :
+                                       streq(o, "c89")            ? STANDARD_C89     :
+                                       streq(o, "c99")            ? STANDARD_C99     :
+                                       streq(o, "c9x")            ? STANDARD_C99     : // deprecated
+                                       streq(o, "gnu++98")        ? STANDARD_GNUXX98 :
+                                       streq(o, "gnu89")          ? STANDARD_GNU89   :
+                                       streq(o, "gnu99")          ? STANDARD_GNU99   :
+                                       streq(o, "gnu9x")          ? STANDARD_GNU99   : // deprecated
+                                       streq(o, "iso9899:1990")   ? STANDARD_C89     :
+                                       streq(o, "iso9899:199409") ? STANDARD_C90     :
+                                       streq(o, "iso9899:1999")   ? STANDARD_C99     :
+                                       streq(o, "iso9899:199x")   ? STANDARD_C99     : // deprecated
+                                       (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard);
                        } else if (streq(option, "version")) {
                                print_cparser_version();
+                       } else if (strstart(option, "print-file-name=")) {
+                               GET_ARG_AFTER(print_file_name_file, "-print-file-name=");
                        } else if (option[0] == '-') {
                                /* double dash option */
                                ++option;
                                if (streq(option, "gcc")) {
-                                       c_mode |= _GNUC;
+                                       features_on  |=  _GNUC;
+                                       features_off &= ~_GNUC;
                                } else if (streq(option, "no-gcc")) {
-                                       c_mode &= ~_GNUC;
+                                       features_on  &= ~_GNUC;
+                                       features_off |=  _GNUC;
                                } else if (streq(option, "ms")) {
-                                       c_mode |= _MS;
+                                       features_on  |=  _MS;
+                                       features_off &= ~_MS;
                                } else if (streq(option, "no-ms")) {
-                                       c_mode &= ~_MS;
-                               } else if (streq(option, "signed-chars")) {
-                                       char_is_signed = true;
-                               } else if (streq(option, "unsigned-chars")) {
-                                       char_is_signed = false;
+                                       features_on  &= ~_MS;
+                                       features_off |=  _MS;
                                } else if (streq(option, "strict")) {
                                        strict_mode = true;
                                } else if (streq(option, "lextest")) {
@@ -850,14 +1094,37 @@ int main(int argc, char **argv)
                                        print_parenthesis = true;
                                } else if (streq(option, "print-fluffy")) {
                                        mode = PrintFluffy;
-                               } else if (streq(option, "print-caml")) {
-                                       mode = PrintCaml;
+                               } else if (streq(option, "print-jna")) {
+                                       mode = PrintJna;
+                               } else if (streq(option, "jna-limit")) {
+                                       ++i;
+                                       if (i >= argc) {
+                                               fprintf(stderr, "error: "
+                                                       "expected argument after '--jna-limit'\n");
+                                               argument_errors = true;
+                                               break;
+                                       }
+                                       jna_limit_output(argv[i]);
+                               } else if (streq(option, "jna-libname")) {
+                                       ++i;
+                                       if (i >= argc) {
+                                               fprintf(stderr, "error: "
+                                                       "expected argument after '--jna-libname'\n");
+                                               argument_errors = true;
+                                               break;
+                                       }
+                                       jna_set_libname(argv[i]);
+                               } else if (streq(option, "time")) {
+                                       do_timing = true;
                                } else if (streq(option, "version")) {
                                        print_cparser_version();
-                                       exit(EXIT_SUCCESS);
+                                       return EXIT_SUCCESS;
+                               } else if (streq(option, "help")) {
+                                       print_help(argv[0]);
+                                       help_displayed = true;
                                } else if (streq(option, "dump-function")) {
                                        ++i;
-                                       if(i >= argc) {
+                                       if (i >= argc) {
                                                fprintf(stderr, "error: "
                                                        "expected argument after '--dump-function'\n");
                                                argument_errors = true;
@@ -865,6 +1132,8 @@ int main(int argc, char **argv)
                                        }
                                        dumpfunction = argv[i];
                                        mode         = CompileDump;
+                               } else if (streq(option, "export-ir")) {
+                                       mode = CompileExportIR;
                                } else {
                                        fprintf(stderr, "error: unknown argument '%s'\n", arg);
                                        argument_errors = true;
@@ -874,34 +1143,37 @@ int main(int argc, char **argv)
                                argument_errors = true;
                        }
                } else {
-                       filetype_t  type     = forced_filetype;
-                       const char *filename = arg;
+                       filetype_t type = forced_filetype;
                        if (type == FILETYPE_AUTODETECT) {
-                               size_t const len = strlen(arg);
-                               if (len < 2 && arg[0] == '-') {
+                               if (streq(arg, "-")) {
                                        /* - implicitly means C source file */
-                                       type     = FILETYPE_C;
-                                       filename = NULL;
-                               } else if (len > 2 && arg[len - 2] == '.') {
-                                       switch (arg[len - 1]) {
-                                       case 'c': type = FILETYPE_C;                      break;
-                                       case 'h': type = FILETYPE_C;                      break;
-                                       case 's': type = FILETYPE_PREPROCESSED_ASSEMBLER; break;
-                                       case 'S': type = FILETYPE_ASSEMBLER;              break;
-
-                                       case 'a':
-                                       case 'o': type = FILETYPE_OBJECT;                 break;
-                                       }
-                               } else if (len > 3 && arg[len - 3] == '.') {
-                                       if (streq(arg + len - 2, "so")) {
-                                               type = FILETYPE_OBJECT;
+                                       type = FILETYPE_C;
+                               } else {
+                                       const char *suffix = strrchr(arg, '.');
+                                       /* Ensure there is at least one char before the suffix */
+                                       if (suffix != NULL && suffix != arg) {
+                                               ++suffix;
+                                               type =
+                                                       streq(suffix, "S")   ? FILETYPE_ASSEMBLER              :
+                                                       streq(suffix, "a")   ? FILETYPE_OBJECT                 :
+                                                       streq(suffix, "c")   ? FILETYPE_C                      :
+                                                       streq(suffix, "i")   ? FILETYPE_PREPROCESSED_C         :
+                                                       streq(suffix, "C")   ? FILETYPE_CXX                    :
+                                                       streq(suffix, "cc")  ? FILETYPE_CXX                    :
+                                                       streq(suffix, "cp")  ? FILETYPE_CXX                    :
+                                                       streq(suffix, "cpp") ? FILETYPE_CXX                    :
+                                                       streq(suffix, "CPP") ? FILETYPE_CXX                    :
+                                                       streq(suffix, "cxx") ? FILETYPE_CXX                    :
+                                                       streq(suffix, "c++") ? FILETYPE_CXX                    :
+                                                       streq(suffix, "ii")  ? FILETYPE_PREPROCESSED_CXX       :
+                                                       streq(suffix, "h")   ? FILETYPE_C                      :
+                                                       streq(suffix, "ir")  ? FILETYPE_IR                     :
+                                                       streq(suffix, "o")   ? FILETYPE_OBJECT                 :
+                                                       streq(suffix, "s")   ? FILETYPE_PREPROCESSED_ASSEMBLER :
+                                                       streq(suffix, "so")  ? FILETYPE_OBJECT                 :
+                                                       FILETYPE_OBJECT; /* gcc behavior: unknown file extension means object file */
                                        }
                                }
-
-                               if (type == FILETYPE_AUTODETECT) {
-                                       fprintf(stderr, "'%s': file format not recognized\n", arg);
-                                       continue;
-                               }
                        }
 
                        file_list_entry_t *entry
@@ -919,25 +1191,38 @@ int main(int argc, char **argv)
                }
        }
 
+       if (help_displayed) {
+               return !argument_errors;
+       }
+
+       if (print_file_name_file != NULL) {
+               print_file_name(print_file_name_file);
+               return EXIT_SUCCESS;
+       }
        if (files == NULL) {
                fprintf(stderr, "error: no input files specified\n");
                argument_errors = true;
        }
 
-       if (help_displayed) {
-               return !argument_errors;
-       }
        if (argument_errors) {
                usage(argv[0]);
-               return 1;
+               return EXIT_FAILURE;
        }
 
-       /* we do the lowering in ast2firm */
-       firm_opt.lower_bitfields = FALSE;
+       /* apply some effects from switches */
+       c_mode |= features_on;
+       c_mode &= ~features_off;
+       if (profile_generate) {
+               add_flag(&ldflags_obst, "-lfirmprof");
+               set_be_option("profilegenerate");
+       }
+       if (profile_use) {
+               set_be_option("profileuse");
+       }
 
        gen_firm_init();
+       byte_order_big_endian = be_get_backend_param()->byte_order_big_endian;
        init_symbol_table();
-       init_tokens();
        init_types();
        init_typehash();
        init_basic_types();
@@ -945,6 +1230,10 @@ int main(int argc, char **argv)
        init_ast();
        init_parser();
        init_ast2firm();
+       init_mangle();
+
+       if (do_timing)
+               timer_init();
 
        if (construct_dep_target) {
                if (outname != 0 && strlen(outname) >= 2) {
@@ -964,12 +1253,11 @@ int main(int argc, char **argv)
                case BenchmarkParser:
                case PrintAst:
                case PrintFluffy:
-               case PrintCaml:
+               case PrintJna:
                case LexTest:
                case PreprocessOnly:
-                       outname = "-";
-                       break;
                case ParseOnly:
+                       outname = "-";
                        break;
                case Compile:
                        get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s");
@@ -984,6 +1272,10 @@ int main(int argc, char **argv)
                                        ".vcg");
                        outname = outnamebuf;
                        break;
+               case CompileExportIR:
+                       get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir");
+                       outname = outnamebuf;
+                       break;
                case CompileAssembleLink:
 #ifdef _WIN32
                        outname = "a.exe";
@@ -1001,20 +1293,21 @@ int main(int argc, char **argv)
                out = stdout;
        } else {
                out = fopen(outname, "w");
-               if(out == NULL) {
+               if (out == NULL) {
                        fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname,
                                        strerror(errno));
-                       return 1;
+                       return EXIT_FAILURE;
                }
        }
 
        file_list_entry_t *file;
+       bool               already_constructed_firm = false;
        for (file = files; file != NULL; file = file->next) {
                char        asm_tempfile[1024];
                const char *filename = file->name;
                filetype_t  filetype = file->type;
 
-               if (file->type == FILETYPE_OBJECT)
+               if (filetype == FILETYPE_OBJECT)
                        continue;
 
                FILE *in = NULL;
@@ -1023,40 +1316,51 @@ int main(int argc, char **argv)
                                in = open_file(filename);
                        lextest(in, filename);
                        fclose(in);
-                       exit(EXIT_SUCCESS);
+                       return EXIT_SUCCESS;
                }
 
                FILE *preprocessed_in = NULL;
-               if (filetype == FILETYPE_C || filetype == FILETYPE_ASSEMBLER) {
-                       /* no support for input on FILE* yet */
-                       if (in != NULL)
-                               panic("internal compiler error: in for preprocessor != NULL");
-
-                       preprocessed_in = preprocess(filename);
-                       if (mode == PreprocessOnly) {
-                               copy_file(out, preprocessed_in);
-                               int result = pclose(preprocessed_in);
-                               fclose(out);
-                               return result;
-                       }
+               filetype_t next_filetype = filetype;
+               switch (filetype) {
+                       case FILETYPE_C:
+                               next_filetype = FILETYPE_PREPROCESSED_C;
+                               goto preprocess;
+                       case FILETYPE_CXX:
+                               next_filetype = FILETYPE_PREPROCESSED_CXX;
+                               goto preprocess;
+                       case FILETYPE_ASSEMBLER:
+                               next_filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
+                               goto preprocess;
+preprocess:
+                               /* no support for input on FILE* yet */
+                               if (in != NULL)
+                                       panic("internal compiler error: in for preprocessor != NULL");
+
+                               preprocessed_in = preprocess(filename, filetype);
+                               if (mode == PreprocessOnly) {
+                                       copy_file(out, preprocessed_in);
+                                       int result = pclose(preprocessed_in);
+                                       fclose(out);
+                                       /* remove output file in case of error */
+                                       if (out != stdout && result != EXIT_SUCCESS) {
+                                               unlink(outname);
+                                       }
+                                       return result;
+                               }
 
-                       if (filetype == FILETYPE_C) {
-                               filetype = FILETYPE_PREPROCESSED_C;
-                       } else if (filetype == FILETYPE_ASSEMBLER) {
-                               filetype = FILETYPE_PREPROCESSED_ASSEMBLER;
-                       } else {
-                               panic("internal compiler error: unknown filetype at preproc");
-                       }
+                               in = preprocessed_in;
+                               filetype = next_filetype;
+                               break;
 
-                       in = preprocessed_in;
+                       default:
+                               break;
                }
 
                FILE *asm_out;
-               if(mode == Compile) {
+               if (mode == Compile) {
                        asm_out = out;
                } else {
-                       asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile),
-                                                "ccs");
+                       asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs");
                }
 
                if (in == NULL)
@@ -1064,43 +1368,107 @@ int main(int argc, char **argv)
 
                /* preprocess and compile */
                if (filetype == FILETYPE_PREPROCESSED_C) {
-                       translation_unit_t *const unit = do_parsing(in, filename);
-                       if (in == preprocessed_in) {
-                               int pp_result = pclose(preprocessed_in);
-                               if (pp_result != EXIT_SUCCESS) {
-                                       exit(EXIT_FAILURE);
-                               }
+                       char const* invalid_mode;
+                       switch (standard) {
+                               case STANDARD_ANSI:
+                               case STANDARD_C89:   c_mode = _C89;                break;
+                               /* TODO determine difference between these two */
+                               case STANDARD_C90:   c_mode = _C89;                break;
+                               case STANDARD_C99:   c_mode = _C89 | _C99;         break;
+                               case STANDARD_GNU89: c_mode = _C89 |        _GNUC; break;
+
+default_c_warn:
+                                       fprintf(stderr,
+                                                       "warning: command line option \"-std=%s\" is not valid for C\n",
+                                                       invalid_mode);
+                                       /* FALLTHROUGH */
+                               case STANDARD_DEFAULT:
+                               case STANDARD_GNU99:   c_mode = _C89 | _C99 | _GNUC; break;
+
+                               case STANDARD_CXX98:   invalid_mode = "c++98"; goto default_c_warn;
+                               case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn;
+                       }
+                       goto do_parsing;
+               } else if (filetype == FILETYPE_PREPROCESSED_CXX) {
+                       char const* invalid_mode;
+                       switch (standard) {
+                               case STANDARD_C89:   invalid_mode = "c89";   goto default_cxx_warn;
+                               case STANDARD_C90:   invalid_mode = "c90";   goto default_cxx_warn;
+                               case STANDARD_C99:   invalid_mode = "c99";   goto default_cxx_warn;
+                               case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn;
+                               case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn;
+
+                               case STANDARD_ANSI:
+                               case STANDARD_CXX98: c_mode = _CXX; break;
+
+default_cxx_warn:
+                                       fprintf(stderr,
+                                                       "warning: command line option \"-std=%s\" is not valid for C++\n",
+                                                       invalid_mode);
+                               case STANDARD_DEFAULT:
+                               case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break;
                        }
 
+do_parsing:
+                       c_mode |= features_on;
+                       c_mode &= ~features_off;
+
+                       /* do the actual parsing */
+                       ir_timer_t *t_parsing = ir_timer_new();
+                       timer_register(t_parsing, "Frontend: Parsing");
+                       timer_push(t_parsing);
+                       init_tokens();
+                       translation_unit_t *const unit = do_parsing(in, filename);
+                       timer_pop(t_parsing);
+
                        /* prints the AST even if errors occurred */
                        if (mode == PrintAst) {
-                               type_set_output(out);
-                               ast_set_output(out);
+                               print_to_file(out);
                                print_ast(unit);
                        }
 
-                       if(error_count > 0) {
+                       if (error_count > 0) {
                                /* parsing failed because of errors */
                                fprintf(stderr, "%u error(s), %u warning(s)\n", error_count,
                                        warning_count);
                                result = EXIT_FAILURE;
                                continue;
-                       } else if(warning_count > 0) {
+                       } else if (warning_count > 0) {
                                fprintf(stderr, "%u warning(s)\n", warning_count);
                        }
 
-                       if(mode == BenchmarkParser) {
+                       if (in == preprocessed_in) {
+                               int pp_result = pclose(preprocessed_in);
+                               if (pp_result != EXIT_SUCCESS) {
+                                       /* remove output file */
+                                       if (out != stdout)
+                                               unlink(outname);
+                                       return EXIT_FAILURE;
+                               }
+                       }
+
+                       if (mode == BenchmarkParser) {
                                return result;
-                       } else if(mode == PrintFluffy) {
+                       } else if (mode == PrintFluffy) {
                                write_fluffy_decls(out, unit);
                                continue;
-                       } else if (mode == PrintCaml) {
-                               write_caml_decls(out, unit);
+                       } else if (mode == PrintJna) {
+                               write_jna_decls(out, unit);
                                continue;
                        }
 
+                       /* build the firm graph */
+                       ir_timer_t *t_construct = ir_timer_new();
+                       timer_register(t_construct, "Frontend: Graph construction");
+                       timer_push(t_construct);
+                       if (already_constructed_firm) {
+                               panic("compiling multiple files/translation units not possible");
+                       }
                        translation_unit_to_firm(unit);
+                       already_constructed_firm = true;
+                       timer_pop(t_construct);
 
+graph_built:
                        if (mode == ParseOnly) {
                                continue;
                        }
@@ -1110,41 +1478,52 @@ int main(int argc, char **argv)
                                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) {
+                               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) {
+                                       if (irg_id == id) {
                                                irg = tirg;
                                                break;
                                        }
                                }
 
-                               if(irg == NULL) {
+                               if (irg == NULL) {
                                        fprintf(stderr, "No graph for function '%s' found\n",
                                                dumpfunction);
-                                       exit(1);
+                                       return EXIT_FAILURE;
                                }
 
-                               dump_ir_block_graph_file(irg, out);
+                               dump_ir_graph_file(out, irg);
                                fclose(out);
-                               exit(0);
+                               return EXIT_SUCCESS;
                        }
 
-                       gen_firm_finish(asm_out, filename, /*c_mode=*/1,
-                                       /*firm_const_exists=*/0);
+                       if (mode == CompileExportIR) {
+                               fclose(out);
+                               ir_export(outname);
+                               return EXIT_SUCCESS;
+                       }
+
+                       gen_firm_finish(asm_out, filename);
                        if (asm_out != out) {
                                fclose(asm_out);
                        }
-
+               } else if (filetype == FILETYPE_IR) {
+                       fclose(in);
+                       ir_import(filename);
+                       goto graph_built;
                } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
                        copy_file(asm_out, in);
                        if (in == preprocessed_in) {
                                int pp_result = pclose(preprocessed_in);
                                if (pp_result != EXIT_SUCCESS) {
+                                       /* remove output in error case */
+                                       if (out != stdout)
+                                               unlink(outname);
                                        return pp_result;
                                }
                        }
-                       if(asm_out != out) {
+                       if (asm_out != out) {
                                fclose(asm_out);
                        }
                }
@@ -1160,7 +1539,7 @@ int main(int argc, char **argv)
                if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) {
                        char        temp[1024];
                        const char *filename_o;
-                       if(mode == CompileAssemble) {
+                       if (mode == CompileAssemble) {
                                fclose(out);
                                filename_o = outname;
                        } else {
@@ -1181,16 +1560,27 @@ int main(int argc, char **argv)
                file->type = filetype;
        }
 
-       if (result != EXIT_SUCCESS)
+       if (result != EXIT_SUCCESS) {
+               if (out != stdout)
+                       unlink(outname);
                return result;
+       }
 
        /* link program file */
-       if(mode == CompileAssembleLink) {
+       if (mode == CompileAssembleLink) {
                obstack_1grow(&ldflags_obst, '\0');
                const char *flags = obstack_finish(&ldflags_obst);
 
                /* construct commandline */
-               obstack_printf(&file_obst, "%s", LINKER);
+               const char *linker = getenv("CPARSER_LINK");
+               if (linker != NULL) {
+                       obstack_printf(&file_obst, "%s ", linker);
+               } else {
+                       if (target_triple != NULL)
+                               obstack_printf(&file_obst, "%s-", target_triple);
+                       obstack_printf(&file_obst, "%s ", LINKER);
+               }
+
                for (file_list_entry_t *entry = files; entry != NULL;
                                entry = entry->next) {
                        if (entry->type != FILETYPE_OBJECT)
@@ -1206,20 +1596,25 @@ int main(int argc, char **argv)
 
                char *commandline = obstack_finish(&file_obst);
 
-               if(verbose) {
+               if (verbose) {
                        puts(commandline);
                }
                int err = system(commandline);
-               if(err != EXIT_SUCCESS) {
+               if (err != EXIT_SUCCESS) {
                        fprintf(stderr, "linker reported an error\n");
-                       exit(1);
+                       return EXIT_FAILURE;
                }
        }
 
+       if (do_timing)
+               timer_term(stderr);
+
        obstack_free(&cppflags_obst, NULL);
        obstack_free(&ldflags_obst, NULL);
+       obstack_free(&asflags_obst, NULL);
        obstack_free(&file_obst, NULL);
 
+       exit_mangle();
        exit_ast2firm();
        exit_parser();
        exit_ast();
@@ -1228,5 +1623,5 @@ int main(int argc, char **argv)
        exit_types();
        exit_tokens();
        exit_symbol_table();
-       return 0;
+       return EXIT_SUCCESS;
 }