X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=85964f0454f92d486e6ac94fe2f674040f1d5f98;hb=6833c6f5a5ade3d5ad0c9ec21c9a89b7985517f4;hp=0f04c77a54b19e0565141c7ac6444ca1dc95586d;hpb=21ea9f4a7d9513d169ec926572036110db81fc4a;p=cparser diff --git a/main.c b/main.c index 0f04c77..85964f0 100644 --- a/main.c +++ b/main.c @@ -1,13 +1,60 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2009 Matthias Braun + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ #include +#define _GNU_SOURCE + #include #include +#include #include #include #include -#ifndef WITH_LIBCORE -#define WITH_LIBCORE +#ifdef _WIN32 + +#include +#include + +/* 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) +#define unlink(filename) _unlink(filename) + +#else +#include +#define HAVE_MKSTEMP #endif #include @@ -15,364 +62,2011 @@ #include "lexer.h" #include "token_t.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_timing.h" +#include "driver/firm_machine.h" #include "adt/error.h" +#include "adt/strutil.h" +#include "wrappergen/write_fluffy.h" +#include "wrappergen/write_jna.h" +#include "revision.h" +#include "warning.h" +#include "help.h" +#include "mangle.h" +#include "printer.h" -#define PREPROCESSOR "cpp" -#define LINKER "gcc" +#ifndef PREPROCESSOR +#ifndef __WIN32__ +#define PREPROCESSOR "gcc -E -U__STRICT_ANSI__" +#else +#define PREPROCESSOR "cpp -U__STRICT_ANSI__" +#endif +#endif -static int verbose; +#ifndef LINKER +#define LINKER "gcc" +#endif -static const ir_settings_if_conv_t *if_conv_info = NULL; +#ifndef ASSEMBLER +#define ASSEMBLER "gcc -c -xassembler" +#endif -static void initialize_firm(void) -{ - be_opt_register(); - firm_init_options(NULL, 0, NULL); +unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC; +bool byte_order_big_endian = false; +bool strict_mode = false; +bool enable_main_collect2_hack = false; +bool freestanding = false; +unsigned architecture_modulo_shift = 0; - const backend_params *be_params; - firm_parameter_t params; - memset(¶ms, 0, sizeof(params)); +static bool char_is_signed = true; +static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT; - params.size = sizeof(params); - params.enable_statistics = 0; - params.initialize_local_func = uninitialized_local_var; - params.cc_mask = 0; - params.builtin_dbg = NULL; +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; +static const char *input_encoding; - /* initialize backend */ - be_params = be_init(); - be_set_debug_retrieve(retrieve_dbg); - params.arch_op_settings = be_params->arch_op_settings; - if_conv_info = be_params->if_conv_info; +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; - /* intialize firm itself */ - init_firm(¶ms); - dbg_init(NULL, NULL, dbg_snprint); +static lang_standard_t standard; - set_opt_constant_folding(1); - set_opt_unreachable_code(1); - set_opt_control_flow_straightening(1); - set_opt_control_flow_weak_simplification(1); - set_opt_control_flow_strong_simplification(1); - set_opt_dead_node_elimination(1); - set_opt_reassociation(1); - set_opt_inline(1); - set_opt_dyn_meth_dispatch(1); - set_opt_normalize(1); - set_opt_tail_recursion(1); - set_opt_dead_method_elimination(1); - set_opt_precise_exc_context(0); - set_opt_loop_unrolling(0); - set_opt_strength_red(0); - set_opt_redundant_loadstore(1); - set_opt_fragile_ops(0); - set_opt_function_call(1); - set_opt_optimize_class_casts(0); - set_opt_suppress_downcast_optimization(0); - set_opt_remove_confirm(1); - set_opt_scalar_replacement(1); - set_opt_ldst_only_null_ptr_exceptions(1); - set_opt_alias_analysis(1); +typedef struct file_list_entry_t file_list_entry_t; - dump_consts_local(1); - dump_keepalive_edges(1); -} +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; -static void dump(ir_graph *irg, const char *suffix) -{ - dump_ir_block_graph(irg, suffix); -} +struct file_list_entry_t { + const char *name; /**< filename or NULL for stdin */ + filetype_t type; + file_list_entry_t *next; +}; + +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; - for(const char *c = inputname; *c != 0; ++c) { - if(*c == '.') - last_dot = i; - ++i; - } - if(last_dot == 0xffffffff) - last_dot = i; + if (inputname == NULL) + inputname = "a"; - if(last_dot >= buflen) - panic("filename too long"); - memcpy(buf, inputname, last_dot); + 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'); - size_t extlen = strlen(newext) + 1; - if(extlen + last_dot >= buflen) + 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); } -static translation_unit_t *do_parsing(FILE *const in, const char *const input) +static translation_unit_t *do_parsing(FILE *const in, const char *const input_name) { - lexer_open_stream(in, input); - translation_unit_t *unit = parse(); + start_parsing(); + + input_t *input = input_from_stream(in, input_encoding); + lexer_switch_input(input, input_name); + parse(); + translation_unit_t *unit = finish_parsing(); + input_free(input); + return unit; } -static void lextest(const char *fname) +static void lextest(FILE *in, const char *fname) { - FILE *in = fopen(fname, "r"); - if(in == NULL) { - fprintf(stderr, "Couldn't open '%s': %s\n", fname, strerror(errno)); - exit(1); - } - - lexer_open_stream(in, fname); + input_t *input = input_from_stream(in, input_encoding); + lexer_switch_input(input, fname); do { lexer_next_preprocessing_token(); print_token(stdout, &lexer_token); - puts(""); - } while(lexer_token.type != T_EOF); - - fclose(in); + putchar('\n'); + } while (lexer_token.kind != T_EOF); + input_free(input); } -static void backend(const char *inputname, const char *outname) +static void add_flag(struct obstack *obst, const char *format, ...) { - FILE *out = fopen(outname, "w"); - if(out == NULL) { - fprintf(stderr, "couldn't open '%s' for writing: %s\n", outname, - strerror(errno)); - exit(1); - } + char buf[65536]; + va_list ap; - be_main(out, inputname); + va_start(ap, format); +#ifdef _WIN32 + int len = +#endif + vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); - fclose(out); + 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 '(': + case ')': + case ';': + case '<': + case '>': + case '\'': + case '\\': + case '\n': + case '\r': + case '\t': + case '`': + case '|': + obstack_1grow(obst, '\\'); + /* FALLTHROUGH */ + default: + obstack_1grow(obst, *c); + break; + } + } +#endif } -static void emit(const char *input_name, const char *out_name) +static const char *type_to_string(type_t *type) { - backend(input_name, out_name); + assert(type->kind == TYPE_ATOMIC); + return get_atomic_kind_name(type->atomic.akind); } -static FILE* preprocess(const char *in) +static FILE *preprocess(const char *fname, filetype_t filetype) { - char buf[4096]; + 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)); - snprintf(buf, sizeof(buf), PREPROCESSOR " %s -o -",in); - if(verbose) { - puts(buf); + 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)); + } + + 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); } - FILE* f = popen(buf, "r"); + + 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, dep_target); + if (outname != NULL) { + add_flag(&cppflags_obst, "-MQ"); + add_flag(&cppflags_obst, outname); + } + } + add_flag(&cppflags_obst, fname); + obstack_1grow(&cppflags_obst, '\0'); + + 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 do not really need that anymore */ + obstack_free(&cppflags_obst, commandline); + return f; } -static void link(const char *in, const char *out) +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", LINKER, in, out); - if(verbose) { - puts(buf); - } - int err = system(buf); - if(err != 0) { - fprintf(stderr, "linker reported an error\n"); - exit(1); + 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); -static void assemble(const char *in, const char *out) -{ - char buf[4096]; + obstack_printf(&asflags_obst, " %s -o %s", in, out); + obstack_1grow(&asflags_obst, '\0'); - snprintf(buf, sizeof(buf), "%s %s -c -o %s", LINKER, in, out); - if(verbose) { - puts(buf); + char *commandline = obstack_finish(&asflags_obst); + if (verbose) { + puts(commandline); } - int err = system(buf); - if(err != 0) { + 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 create_firm_prog(translation_unit_t *unit) +static void print_file_name(const char *file) { - translation_unit_to_firm(unit); + add_flag(&ldflags_obst, "-print-file-name=%s", file); - //dump_globals_as_text(dump_verbosity_max, "-globals"); + obstack_1grow(&ldflags_obst, '\0'); + const char *flags = obstack_finish(&ldflags_obst); - 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"); + /* 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'); - lower_highlevel(); - for(int i = 0; i < n_irgs; ++i) { - ir_graph *const irg = get_irp_irg(i); - dump(irg, "-lower"); + 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 void optimize(void) +static const char *try_dir(const char *dir) { - int arr_len; - ir_entity **keep_methods; + if (dir == NULL) + return dir; + if (access(dir, R_OK | W_OK | X_OK) == 0) + return dir; + return NULL; +} - cgana(&arr_len, &keep_methods); - gc_irgs(arr_len, keep_methods); - free(keep_methods); +static const char *get_tempdir(void) +{ + static const char *tmpdir = NULL; + + if (tmpdir != NULL) + return tmpdir; + + if (tmpdir == NULL) + tmpdir = try_dir(getenv("TMPDIR")); + if (tmpdir == NULL) + tmpdir = try_dir(getenv("TMP")); + if (tmpdir == NULL) + tmpdir = try_dir(getenv("TEMP")); + +#ifdef P_tmpdir + if (tmpdir == NULL) + tmpdir = try_dir(P_tmpdir); +#endif - optimize_funccalls(0); + if (tmpdir == NULL) + tmpdir = try_dir("/var/tmp"); + if (tmpdir == NULL) + tmpdir = try_dir("/usr/tmp"); + if (tmpdir == NULL) + tmpdir = try_dir("/tmp"); - for(int i = 0; i < get_irp_n_irgs(); ++i) { - ir_graph *irg = get_irp_irg(i); + if (tmpdir == NULL) + tmpdir = "."; - optimize_graph_df(irg); - dump(irg, "-localopt"); - place_code(irg); - dump(irg, "-place"); - optimize_cf(irg); - dump(irg, "-cf"); + 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, emits no warnings + * during linking (like glibc/gnu ld do for tmpnam)... + */ +static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix) +{ + const char *tempdir = get_tempdir(); + + snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix); + + int fd = mkstemp(buffer); + if (fd == -1) { + fprintf(stderr, "could not create temporary file: %s\n", + strerror(errno)); + exit(EXIT_FAILURE); } + FILE *out = fdopen(fd, "w"); + if (out == NULL) { + fprintf(stderr, "could not create temporary file FILE*\n"); + 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; } -void write_fluffy_decls(translation_unit_t *unit); +static void free_temp_files(void) +{ + 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 { + BenchmarkParser, + PreprocessOnly, + ParseOnly, Compile, + CompileDump, + CompileExportIR, CompileAssemble, CompileAssembleLink, LexTest, PrintAst, - PrintFluffy + PrintFluffy, + 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) +{ + printf("cparser (%s) using libFirm (%u.%u", + cparser_REVISION, ir_get_version_major(), + ir_get_version_minor()); + + const char *revision = ir_get_version_revision(); + if (revision[0] != 0) { + putchar(' '); + fputs(revision, stdout); + } + + const char *build = ir_get_version_build(); + if (build[0] != 0) { + putchar(' '); + fputs(build, stdout); + } + 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 print_help_basic(const char *argv0) +{ + usage(argv0); + puts(""); + put_help("--help", "Display this information"); + put_help("--version", "Display compiler version"); + put_help("--help-parser", "Display information about parser options"); + put_help("--help-warnings", "Display information about warning options"); + put_help("--help-codegen", "Display information about code-generation options"); + put_help("--help-optimization", "Display information about optimization options"); + put_help("--help-linker", "Display information about linker options"); + put_help("--help-language-tools", "Display information about language tools options"); + put_help("--help-debug", "Display information about compiler debugging options"); + put_help("--help-firm", "Display information about direct firm options"); + put_help("--help-all", "Display information about all options"); + put_help("-c", "Compile and assemble but do not link"); + put_help("-E", "Preprocess only"); + put_help("-S", "Compile but do not assembler or link"); + put_help("-o", "Specify output file"); + put_help("-v", "Verbose output (show invocation of sub-processes)"); + put_help("-x", "Force input language:"); + put_choice("c", "C"); + put_choice("c++", "C++"); + put_choice("assembler", "Assembler (no preprocessing)"); + put_choice("assembler-with-cpp", "Assembler with preprocessing"); + put_choice("none", "Autodetection"); + put_help("-pipe", "Ignored (gcc compatibility)"); +} + +static void print_help_preprocessor(void) +{ + put_help("-nostdinc", "Do not search standard system include directories"); + put_help("-trigraphs", "Support ISO C trigraphs"); + put_help("-isystem", ""); + put_help("-include", ""); + put_help("-I PATH", ""); + put_help("-D SYMBOL[=value]", ""); + put_help("-U SYMBOL", ""); + put_help("-Wp,OPTION", "Pass option directly to preprocessor"); + put_help("-M", ""); + put_help("-MD", ""); + put_help("-MMD", ""); + put_help("-MM", ""); + put_help("-MP", ""); + put_help("-MT", ""); + put_help("-MQ", ""); + put_help("-MF", ""); +} + +static void print_help_parser(void) +{ + put_help("-finput-charset=CHARSET", "Select encoding of input files"); + put_help("-fmessage-length=LEN", "Ignored (gcc compatibility)"); + put_help("-fshort-wchar", "Type \"wchar_t\" is unsigned short instead of int"); + put_help("-fshow-column", "Show the column number in diagnostic messages"); + put_help("-fsigned-char", "Type \"char\" is a signed type"); + put_help("-funsigned-char", "Type \"char\" is an unsigned type"); + put_help("--ms", "Enable msvc extensions"); + put_help("--no-ms", "Disable msvc extensions"); + put_help("--gcc", "Enable gcc extensions"); + put_help("--no-gcc", "Disable gcc extensions"); + put_help("-std=STANDARD", "Specify language standard:"); + put_choice("c99", "ISO C99 standard"); + put_choice("c89", "ISO C89 standard"); + put_choice("c9x", "Deprecated"); + put_choice("c++", "ISO C++ 98"); + put_choice("c++98", "ISO C++ 98"); + put_choice("gnu99", "ISO C99 + GNU extensions (default)"); + put_choice("gnu89", "ISO C89 + GNU extensions"); + put_choice("gnu9x", "Deprecated"); + put_choice("iso9899:1990", "ISO C89"); + put_choice("iso9899:199409", "ISO C90"); + put_choice("iso9899:1999", "ISO C99"); + put_choice("iso9899:199x", "Deprecated"); + put_help("-pedantic", "Ignored (gcc compatibility)"); + put_help("-ansi", "Ignored (gcc compatibility)"); + put_help("--strict", "Enable strict conformance checking"); +} + +static void print_help_warnings(void) +{ + put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning"); + put_help("-w", "Disable all warnings"); + put_help("-Wno-trigraphs", "Warn if input contains trigraphs"); + put_help("-Wundef", "Warn if an undefined macro is used in an #if"); + put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories"); + put_help("-Wendif-labels", "Warn about stray text after #elif and #endif"); + put_help("-Winit-self", "Ignored (gcc compatibility)"); + put_help("-Wformat-y2k", "Ignored (gcc compatibility)"); + put_help("-Wformat-security", "Ignored (gcc compatibility)"); + put_help("-Wold-style-declaration", "Ignored (gcc compatibility)"); + put_help("-Wtype-limits", "Ignored (gcc compatibility)"); + print_warning_opt_help(); +} + +static void print_help_optimization(void) +{ + put_help("-O LEVEL", "Select optimization level (0-4)"); + firm_option_help(put_help); + put_help("-fexpensive-optimizations","Ignored (gcc compatibility)"); +} + +static void print_help_codegeneration(void) +{ + put_help("-g", "Generate debug information"); + put_help("-pg", "Instrument code for gnu gprof"); + put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible"); + put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)"); + put_help("-fhosted", "Compile in hosted (not freestanding) mode"); + put_help("-fprofile-generate", "Generate instrumented code to collect profile information"); + put_help("-fprofile-use", "Use profile information generated by instrumented binaries"); + put_help("-ffp-precise", "Precise floating point model"); + put_help("-ffp-fast", "Imprecise floating point model"); + put_help("-ffp-strict", "Strict floating point model"); + put_help("-pthread", "Use pthread threading library"); + put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple"); + put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)"); + put_help("-march=ARCH", ""); + put_help("-mtune=ARCH", ""); + put_help("-mcpu=CPU", ""); + put_help("-mfpmath=", ""); + put_help("-mpreferred-stack-boundary=", ""); + put_help("-mrtd", ""); + put_help("-mregparm=", "Not supported yet"); + put_help("-msoft-float", "Not supported yet"); + put_help("-m32", "Generate 32bit code"); + put_help("-m64", "Generate 64bit code"); + put_help("-fverbose-asm", "Ignored (gcc compatibility)"); + put_help("-fjump-tables", "Ignored (gcc compatibility)"); + put_help("-fcommon", "Ignored (gcc compatibility)"); + put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)"); + put_help("-falign-loops", "Ignored (gcc compatibility)"); + put_help("-falign-jumps", "Ignored (gcc compatibility)"); + put_help("-falign-functions", "Ignored (gcc compatibility)"); + put_help("-fPIC", "Ignored (gcc compatibility)"); + put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)"); + puts(""); + puts("\tMost of these options can be used with a no- prefix to disable them"); + puts("\te.g. -fno-omit-frame-pointer"); +} + +static void print_help_linker(void) +{ + put_help("-l LIBRARY", ""); + put_help("-L PATH", ""); + put_help("-s", "Do not produce symbol table and relocation information"); + put_help("-shared", "Produce a shared library"); + put_help("-static", "Produce statically linked binary"); + put_help("-Wl,OPTION", "Pass option directly to linker"); +} + +static void print_help_debug(void) +{ + put_help("--lextest", "Preprocess and tokenize only"); + put_help("--print-ast", "Preprocess, parse and print AST"); + put_help("--print-implicit-cast", ""); + put_help("--print-parenthesis", ""); + put_help("--benchmark", "Preprocess and parse, produces no output"); + put_help("--time", "Measure time of compiler passes"); + put_help("--dump-function func", "Preprocess, parse and output vcg graph of func"); + put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation"); +} + +static void print_help_language_tools(void) +{ + put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language"); + put_help("--print-jna", "Preprocess, parse and generate declarations for JNA"); + put_help("--jna-limit filename", ""); + put_help("--jna-libname name", ""); +} + +static void print_help_firm(void) +{ + put_help("-bOPTION", "Directly pass option to libFirm backend"); + int res = be_parse_arg("help"); + (void) res; + assert(res); +} + +typedef enum { + HELP_NONE = 0, + HELP_BASIC = 1u << 0, + HELP_PREPROCESSOR = 1u << 1, + HELP_PARSER = 1u << 2, + HELP_WARNINGS = 1u << 3, + HELP_OPTIMIZATION = 1u << 4, + HELP_CODEGEN = 1u << 5, + HELP_LINKER = 1u << 6, + HELP_LANGUAGETOOLS = 1u << 7, + HELP_DEBUG = 1u << 8, + HELP_FIRM = 1u << 9, + + HELP_ALL = (unsigned)-1 +} help_sections_t; + +static void print_help(const char *argv0, help_sections_t sections) +{ + if (sections & HELP_BASIC) print_help_basic(argv0); + if (sections & HELP_PREPROCESSOR) print_help_preprocessor(); + if (sections & HELP_PARSER) print_help_parser(); + if (sections & HELP_WARNINGS) print_help_warnings(); + if (sections & HELP_OPTIMIZATION) print_help_optimization(); + if (sections & HELP_CODEGEN) print_help_codegeneration(); + if (sections & HELP_LINKER) print_help_linker(); + if (sections & HELP_LANGUAGETOOLS) print_help_language_tools(); + if (sections & HELP_DEBUG) print_help_debug(); + if (sections & HELP_FIRM) print_help_firm(); +} + +static void set_be_option(const char *arg) +{ + int res = be_parse_arg(arg); + (void) res; + assert(res); +} + +static void copy_file(FILE *dest, FILE *input) +{ + char buf[16384]; + + while (!feof(input) && !ferror(dest)) { + size_t read = fread(buf, 1, sizeof(buf), input); + if (fwrite(buf, 1, read, dest) != read) { + perror("could not write output"); + } + } +} + +static FILE *open_file(const char *filename) +{ + if (streq(filename, "-")) { + return stdin; + } + + FILE *in = fopen(filename, "r"); + if (in == NULL) { + fprintf(stderr, "Could not open '%s': %s\n", filename, + strerror(errno)); + exit(EXIT_FAILURE); + } + + return in; +} + +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")) + return FILETYPE_ASSEMBLER; + if (streq(string, "none")) + return FILETYPE_AUTODETECT; + + return FILETYPE_UNKNOWN; +} + +static bool is_windows_os(const char *os) +{ + return strstr(os, "mingw") != NULL || streq(os, "win32"); +} + +static bool is_unixish_os(const char *os) +{ + return strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL + || streq(os, "solaris"); +} + +static bool is_darwin_os(const char *os) +{ + return streq(os, "darwin"); +} + +static bool init_os_support(void) +{ + const char *os = target_machine->operating_system; + wchar_atomic_kind = ATOMIC_TYPE_INT; + enable_main_collect2_hack = false; + define_intmax_types = false; + + if (is_unixish_os(os)) { + set_create_ld_ident(create_name_linux_elf); + } else if (is_darwin_os(os)) { + set_create_ld_ident(create_name_macho); + define_intmax_types = true; + } else if (is_windows_os(os)) { + 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 unsigned decide_modulo_shift(unsigned type_size) +{ + if (architecture_modulo_shift == 0) + return 0; + if (type_size < architecture_modulo_shift) + return architecture_modulo_shift; + return type_size; +} + +static bool is_ia32_cpu(const char *architecture) +{ + return streq(architecture, "i386") + || streq(architecture, "i486") + || streq(architecture, "i586") + || streq(architecture, "i686") + || streq(architecture, "i786"); +} + +static const char *setup_isa_from_tripel(const machine_triple_t *machine) +{ + const char *cpu = machine->cpu_type; + + if (is_ia32_cpu(cpu)) { + return "ia32"; + } else if (streq(cpu, "x86_64")) { + return "amd64"; + } else if (streq(cpu, "sparc")) { + return "sparc"; + } else if (streq(cpu, "arm")) { + return "arm"; + } else { + fprintf(stderr, "Unknown cpu '%s' in target-triple\n", cpu); + return NULL; + } +} + +static const char *setup_target_machine(void) +{ + if (!setup_firm_for_machine(target_machine)) + exit(1); + + const char *isa = setup_isa_from_tripel(target_machine); + + if (isa == NULL) + exit(1); + + init_os_support(); + + return isa; +} + +/** + * initialize cparser type properties based on a firm type + */ +static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type) +{ + props->size = get_type_size_bytes(type); + props->alignment = get_type_alignment_bytes(type); + props->struct_alignment = props->alignment; +} + +/** + * Copy atomic type properties except the integer conversion rank + */ +static void copy_typeprops(atomic_type_properties_t *dest, + const atomic_type_properties_t *src) +{ + dest->size = src->size; + dest->alignment = src->alignment; + dest->struct_alignment = src->struct_alignment; + dest->flags = src->flags; +} + +static void init_types_and_adjust(void) +{ + const backend_params *be_params = be_get_backend_param(); + unsigned machine_size = be_params->machine_size; + init_types(machine_size); + + atomic_type_properties_t *props = atomic_type_properties; + + /* adjust types as requested by target architecture */ + ir_type *type_long_double = be_params->type_long_double; + if (type_long_double != NULL) + set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double); + + ir_type *type_long_long = be_params->type_long_long; + if (type_long_long != NULL) + set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long); + + ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long; + if (type_unsigned_long_long != NULL) + set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long); + + /* operating system ABI specifics */ + const char *os = target_machine->operating_system; + if (is_darwin_os(os)) { + if (machine_size == 32) { + props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4; + props[ATOMIC_TYPE_LONG_DOUBLE].size = 16; + props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16; + props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16; + } + } else if (is_windows_os(os)) { + if (machine_size == 64) { + /* to ease porting of old c-code microsoft decided to use 32bits + * even for long */ + props[ATOMIC_TYPE_LONG] = props[ATOMIC_TYPE_INT]; + props[ATOMIC_TYPE_ULONG] = props[ATOMIC_TYPE_UINT]; + } + + /* on windows long double is not supported */ + props[ATOMIC_TYPE_LONG_DOUBLE] = props[ATOMIC_TYPE_DOUBLE]; + } else if (is_unixish_os(os)) { + if (is_ia32_cpu(target_machine->cpu_type)) { + /* System V has a broken alignment for double so we have to add + * a hack here */ + props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4; + props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4; + } + } + + /* stuff decided after processing operating system specifics and + * commandline flags */ + if (char_is_signed) { + props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED; + } else { + props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED; + } + /* copy over wchar_t properties (including rank) */ + props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind]; + + /* initialize defaults for unsupported types */ + if (type_long_long == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]); + } + if (type_unsigned_long_long == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG], + &props[ATOMIC_TYPE_ULONG]); + } + if (type_long_double == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE], + &props[ATOMIC_TYPE_DOUBLE]); + } + + /* initialize firm pointer modes */ + char name[64]; + ir_mode_sort sort = irms_reference; + unsigned bit_size = machine_size; + bool is_signed = 0; + ir_mode_arithmetic arithmetic = irma_twos_complement; + unsigned modulo_shift = decide_modulo_shift(bit_size); + + snprintf(name, sizeof(name), "p%u", machine_size); + ir_mode *ptr_mode = new_ir_mode(name, sort, bit_size, is_signed, arithmetic, + modulo_shift); + + if (machine_size == 16) { + set_reference_mode_signed_eq(ptr_mode, mode_Hs); + set_reference_mode_unsigned_eq(ptr_mode, mode_Hu); + } else if (machine_size == 32) { + set_reference_mode_signed_eq(ptr_mode, mode_Is); + set_reference_mode_unsigned_eq(ptr_mode, mode_Iu); + } else if (machine_size == 64) { + set_reference_mode_signed_eq(ptr_mode, mode_Ls); + set_reference_mode_unsigned_eq(ptr_mode, mode_Lu); + } else { + panic("strange machine_size when determining pointer modes"); + } + + /* Hmm, pointers should be machine size */ + set_modeP_data(ptr_mode); + set_modeP_code(ptr_mode); + + byte_order_big_endian = be_params->byte_order_big_endian; + if (be_params->modulo_shift_efficient) { + architecture_modulo_shift = machine_size; + } else { + architecture_modulo_shift = 0; + } } int main(int argc, char **argv) { - initialize_firm(); + firm_early_init(); - init_symbol_table(); - init_tokens(); - init_lexer(); - init_types(); - init_typehash(); - init_ast(); - init_parser(); - init_ast2firm(); + const char *dumpfunction = NULL; + const char *print_file_name_file = NULL; + compile_mode_t mode = CompileAssembleLink; + int opt_level = 1; + int result = EXIT_SUCCESS; + char cpu_arch[16] = "ia32"; + 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) \ + do { \ + def = &arg[sizeof(args)-1]; \ + if (def[0] == '\0') { \ + ++i; \ + if (i >= argc) { \ + fprintf(stderr, "error: expected argument after '" args "'\n"); \ + argument_errors = true; \ + break; \ + } \ + def = argv[i]; \ + if (def[0] == '-' && def[1] != '\0') { \ + fprintf(stderr, "error: expected argument after '" args "'\n"); \ + argument_errors = true; \ + continue; \ + } \ + } \ + } while (0) - const char *input = NULL; - const char *outname = NULL; - compile_mode_t mode = CompileAssembleLink; +#define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0') - for(int i = 1; i < argc; ++i) { + /* early options parsing (find out optimization level and OS) */ + for (int i = 1; i < argc; ++i) { const char *arg = argv[i]; - if(strcmp(arg, "-o") == 0) { - ++i; - if(i >= argc) { - usage(argv[0]); - return 1; + if (arg[0] != '-') + continue; + + const char *option = &arg[1]; + if (option[0] == 'O') { + sscanf(&option[1], "%d", &opt_level); + } + } + + const char *target = getenv("TARGET"); + if (target != NULL) + parse_target_triple(target); + if (target_machine == NULL) { + target_machine = firm_get_host_machine(); + } + choose_optimization_pack(opt_level); + setup_target_machine(); + + /* parse rest of options */ + standard = STANDARD_DEFAULT; + unsigned features_on = 0; + unsigned features_off = 0; + filetype_t forced_filetype = FILETYPE_AUTODETECT; + help_sections_t help = HELP_NONE; + bool argument_errors = false; + for (int i = 1; i < argc; ++i) { + const char *arg = argv[i]; + if (arg[0] == '-' && arg[1] != '\0') { + /* an option */ + const char *option = &arg[1]; + if (option[0] == 'o') { + GET_ARG_AFTER(outname, "-o"); + } 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')) { + mode = CompileAssemble; + } else if (SINGLE_OPTION('E')) { + mode = PreprocessOnly; + } else if (SINGLE_OPTION('s')) { + add_flag(&ldflags_obst, "-s"); + } else if (SINGLE_OPTION('S')) { + mode = Compile; + } else if (option[0] == 'O') { + continue; + } 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') { + const char *opt; + GET_ARG_AFTER(opt, "-D"); + add_flag(&cppflags_obst, "-D%s", opt); + } 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') { + const char *opt; + GET_ARG_AFTER(opt, "-l"); + add_flag(&ldflags_obst, "-l%s", opt); + } 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')) { + verbose = 1; + } else if (SINGLE_OPTION('w')) { + add_flag(&cppflags_obst, "-w"); + disable_all_warnings(); + } else if (option[0] == 'x') { + const char *opt; + GET_ARG_AFTER(opt, "-x"); + forced_filetype = get_filetype_from_string(opt); + if (forced_filetype == FILETYPE_UNKNOWN) { + fprintf(stderr, "Unknown language '%s'\n", opt); + argument_errors = true; + } + } else if (streq(option, "M")) { + mode = PreprocessOnly; + add_flag(&cppflags_obst, "-M"); + } else if (streq(option, "MMD") || + streq(option, "MD")) { + construct_dep_target = true; + add_flag(&cppflags_obst, "-%s", option); + } else if (streq(option, "MM") || + streq(option, "MP")) { + add_flag(&cppflags_obst, "-%s", option); + } else if (streq(option, "MT") || + streq(option, "MQ") || + streq(option, "MF")) { + const char *opt; + 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, "input-charset=")) { + char const* const encoding = strchr(orig_opt, '=') + 1; + 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, "visibility=")) { + const char *val = strchr(orig_opt, '=')+1; + elf_visibility_tag_t visibility + = get_elf_visibility_from_string(val); + if (visibility == ELF_VISIBILITY_ERROR) { + fprintf(stderr, "invalid visibility '%s' specified\n", + val); + argument_errors = true; + } else { + set_default_visibility(visibility); + } + } else if (strstart(orig_opt, "message-length=")) { + /* ignore: would only affect error message format */ + } else if (streq(orig_opt, "fast-math") || + streq(orig_opt, "fp-fast")) { + firm_fp_model = fp_model_fast; + } else if (streq(orig_opt, "fp-precise")) { + firm_fp_model = fp_model_precise; + } else if (streq(orig_opt, "fp-strict")) { + firm_fp_model = fp_model_strict; + } else if (streq(orig_opt, "help")) { + fprintf(stderr, "warning: -fhelp is deprecated\n"); + help |= HELP_OPTIMIZATION; + } 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] == '-') { + truth_value = false; + opt += 3; + } + + if (streq(opt, "diagnostics-show-option")) { + diagnostics_show_option = truth_value; + } 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, "show-column")) { + show_column = truth_value; + } else if (streq(opt, "signed-char")) { + char_is_signed = truth_value; + } else if (streq(opt, "strength-reduce")) { + /* does nothing, for gcc compatibility (even gcc does + * nothing for this switch anymore) */ + } 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 do not support + * anyway was deactivated */ + } else if (streq(opt, "verbose-asm")) { + /* ignore: we always print verbose assembler */ + } else if (streq(opt, "jump-tables") || + streq(opt, "expensive-optimizations") || + streq(opt, "common") || + streq(opt, "optimize-sibling-calls") || + streq(opt, "align-loops") || + streq(opt, "align-jumps") || + streq(opt, "align-functions") || + streq(opt, "PIC") || + streq(opt, "stack-protector") || + streq(opt, "stack-protector-all")) { + fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); + } else { + int res = firm_option(orig_opt); + if (res == 0) { + fprintf(stderr, "error: unknown Firm option '-f%s'\n", + orig_opt); + argument_errors = true; + continue; + } + } + } + } else if (option[0] == 'b') { + const char *opt; + GET_ARG_AFTER(opt, "-b"); + + if (streq(opt, "help")) { + fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n"); + help |= HELP_FIRM; + } else { + int res = be_parse_arg(opt); + if (res == 0) { + fprintf(stderr, "error: unknown Firm backend option '-b %s'\n", + opt); + argument_errors = true; + } else if (strstart(opt, "isa=")) { + strncpy(cpu_arch, opt, sizeof(cpu_arch)); + } + } + } else if (option[0] == 'W') { + 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") + || streq(option + 1, "missing-include-dirs") + || streq(option + 1, "endif-labels")) { + add_flag(&cppflags_obst, "%s", arg); + } else if (streq(option+1, "init-self")) { + /* ignored (same as gcc does) */ + } else if (streq(option+1, "format-y2k") + || streq(option+1, "format-security") + || streq(option+1, "old-style-declaration") + || streq(option+1, "type-limits")) { + /* ignore (gcc compatibility) */ + } else { + set_warning_opt(&option[1]); + } + } else if (option[0] == 'm') { + /* -m options */ + const char *opt; + char arch_opt[64]; + + GET_ARG_AFTER(opt, "-m"); + if (strstart(opt, "target=")) { + GET_ARG_AFTER(opt, "-mtarget="); + if (!parse_target_triple(opt)) { + argument_errors = true; + } else { + const char *isa = setup_target_machine(); + strncpy(cpu_arch, isa, sizeof(cpu_arch)); + target_triple = opt; + } + } else if (strstart(opt, "triple=")) { + GET_ARG_AFTER(opt, "-mtriple="); + if (!parse_target_triple(opt)) { + argument_errors = true; + } else { + const char *isa = setup_target_machine(); + strncpy(cpu_arch, isa, sizeof(cpu_arch)); + 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 = be_parse_arg(arch_opt); + snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); + res &= be_parse_arg(arch_opt); + + if (res == 0) { + fprintf(stderr, "Unknown architecture '%s'\n", arch_opt); + 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 = 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 = be_parse_arg(arch_opt); + if (res == 0) + argument_errors = true; + } else if (strstart(opt, "fpmath=")) { + GET_ARG_AFTER(opt, "-mfpmath="); + if (streq(opt, "387")) + opt = "x87"; + else if (streq(opt, "sse")) + opt = "sse2"; + else { + fprintf(stderr, "error: option -mfpmath supports only 387 or sse\n"); + argument_errors = true; + } + if (!argument_errors) { + snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_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 = be_parse_arg(arch_opt); + if (res == 0) + argument_errors = true; + } 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")) { + add_flag(&ldflags_obst, "-msoft-float"); + snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch); + int res = be_parse_arg(arch_opt); + if (res == 0) + argument_errors = true; + } else { + long int value = strtol(opt, NULL, 10); + if (value == 0) { + fprintf(stderr, "error: wrong option '-m %s'\n", opt); + argument_errors = true; + } else if (value != 16 && value != 32 && value != 64) { + fprintf(stderr, "error: option -m supports only 16, 32 or 64\n"); + argument_errors = true; + } else { + unsigned machine_size = (unsigned)value; + /* TODO: choose/change backend based on this */ + add_flag(&cppflags_obst, "-m%u", machine_size); + add_flag(&asflags_obst, "-m%u", machine_size); + add_flag(&ldflags_obst, "-m%u", machine_size); + } + } + } else if (streq(option, "pg")) { + set_be_option("gprof"); + add_flag(&ldflags_obst, "-pg"); + } else if (streq(option, "pedantic") || + streq(option, "ansi")) { + fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); + } else if (strstart(option, "std=")) { + 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")) { + features_on |= _GNUC; + features_off &= ~_GNUC; + } else if (streq(option, "no-gcc")) { + features_on &= ~_GNUC; + features_off |= _GNUC; + } else if (streq(option, "ms")) { + features_on |= _MS; + features_off &= ~_MS; + } else if (streq(option, "no-ms")) { + features_on &= ~_MS; + features_off |= _MS; + } else if (streq(option, "strict")) { + strict_mode = true; + } else if (streq(option, "lextest")) { + mode = LexTest; + } else if (streq(option, "benchmark")) { + mode = BenchmarkParser; + } else if (streq(option, "print-ast")) { + mode = PrintAst; + } else if (streq(option, "print-implicit-cast")) { + print_implicit_casts = true; + } else if (streq(option, "print-parenthesis")) { + print_parenthesis = true; + } else if (streq(option, "print-fluffy")) { + mode = PrintFluffy; + } 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(); + return EXIT_SUCCESS; + } else if (streq(option, "help")) { + help |= HELP_BASIC; + } else if (streq(option, "help-parser")) { + help |= HELP_PARSER; + } else if (streq(option, "help-warnings")) { + help |= HELP_WARNINGS; + } else if (streq(option, "help-codegen")) { + help |= HELP_CODEGEN; + } else if (streq(option, "help-linker")) { + help |= HELP_LINKER; + } else if (streq(option, "help-optimization")) { + help |= HELP_OPTIMIZATION; + } else if (streq(option, "help-language-tools")) { + help |= HELP_LANGUAGETOOLS; + } else if (streq(option, "help-debug")) { + help |= HELP_DEBUG; + } else if (streq(option, "help-firm")) { + help |= HELP_FIRM; + } else if (streq(option, "help-all")) { + help |= HELP_ALL; + } else if (streq(option, "dump-function")) { + ++i; + if (i >= argc) { + fprintf(stderr, "error: " + "expected argument after '--dump-function'\n"); + argument_errors = true; + break; + } + 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; + } + } else { + fprintf(stderr, "error: unknown argument '%s'\n", arg); + argument_errors = true; } - outname = argv[i]; - } else if(strcmp(arg, "-c") == 0) { - mode = CompileAssemble; - } else if(strcmp(arg, "-S") == 0) { - mode = Compile; - } 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, "-v") == 0) { - verbose = 1; - } else if(arg[0] == '-') { - usage(argv[0]); - return 1; } else { - if(input != NULL) { - fprintf(stderr, "Error: multiple input files specified\n"); - usage(argv[0]); - return 1; + filetype_t type = forced_filetype; + if (type == FILETYPE_AUTODETECT) { + if (streq(arg, "-")) { + /* - implicitly means C source file */ + 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 */ + } + } + } + + file_list_entry_t *entry + = obstack_alloc(&file_obst, sizeof(entry[0])); + memset(entry, 0, sizeof(entry[0])); + entry->name = arg; + entry->type = type; + + if (last_file != NULL) { + last_file->next = entry; } else { - input = arg; + files = entry; } + last_file = entry; } } - if(input == NULL) { - fprintf(stderr, "%s: no input files\n", argv[0]); - return 1; + if (help != HELP_NONE) { + print_help(argv[0], help); + return !argument_errors; } - if(mode == LexTest) { - lextest(input); - return 0; + if (print_file_name_file != NULL) { + print_file_name(print_file_name_file); + return EXIT_SUCCESS; } - - FILE *const in = preprocess(input); - translation_unit_t *const unit = do_parsing(in, input); - pclose(in); - if(unit == NULL) - return 1; - - if(mode == PrintAst) { - print_ast(unit); - return 0; + if (files == NULL) { + fprintf(stderr, "error: no input files specified\n"); + argument_errors = true; } - if(mode == PrintFluffy) { - ast_set_output(stdout); - write_fluffy_decls(unit); + + if (argument_errors) { + usage(argv[0]); + return EXIT_FAILURE; } - char outsname[4096]; - const char *sname = NULL; - if(mode == Compile) { - sname = outname; + /* 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(sname == NULL) { - get_output_name(outsname, sizeof(outsname), input, ".s"); - sname = outsname; + if (profile_use) { + set_be_option("profileuse"); } - create_firm_prog(unit); - optimize(); - emit(input, sname); + gen_firm_init(); + init_symbol_table(); + init_types_and_adjust(); + init_typehash(); + init_basic_types(); + if (wchar_atomic_kind == ATOMIC_TYPE_INT) + init_wchar_types(type_int); + else if (wchar_atomic_kind == ATOMIC_TYPE_SHORT) + init_wchar_types(type_short); + else + panic("unexpected wchar type"); + init_lexer(); + init_ast(); + init_parser(); + init_ast2firm(); + init_mangle(); + + if (do_timing) + timer_init(); - if(mode == CompileAssemble) { - char outoname[4096]; - const char *oname = outname; - if(oname == NULL) { - get_output_name(outoname, sizeof(outoname), input, ".o"); - oname = outoname; + if (construct_dep_target) { + if (outname != 0 && strlen(outname) >= 2) { + get_output_name(dep_target, sizeof(dep_target), outname, ".d"); + } else { + get_output_name(dep_target, sizeof(dep_target), files->name, ".d"); } - assemble(sname, oname); } else { - assert(mode == CompileAssembleLink); + dep_target[0] = '\0'; + } + + char outnamebuf[4096]; + if (outname == NULL) { + const char *filename = files->name; - if(outname == NULL) + switch(mode) { + case BenchmarkParser: + case PrintAst: + case PrintFluffy: + case PrintJna: + case LexTest: + case PreprocessOnly: + case ParseOnly: + outname = "-"; + break; + case Compile: + get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s"); + outname = outnamebuf; + break; + case CompileAssemble: + get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o"); + outname = outnamebuf; + break; + case CompileDump: + get_output_name(outnamebuf, sizeof(outnamebuf), dumpfunction, + ".vcg"); + outname = outnamebuf; + break; + case CompileExportIR: + get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".ir"); + outname = outnamebuf; + break; + case CompileAssembleLink: +#ifdef _WIN32 + outname = "a.exe"; +#else outname = "a.out"; +#endif + break; + } + } + + assert(outname != NULL); + + FILE *out; + if (streq(outname, "-")) { + out = stdout; + } else { + out = fopen(outname, "w"); + if (out == NULL) { + fprintf(stderr, "Could not open '%s' for writing: %s\n", outname, + strerror(errno)); + 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 (filetype == FILETYPE_OBJECT) + continue; + + FILE *in = NULL; + if (mode == LexTest) { + if (in == NULL) + in = open_file(filename); + lextest(in, filename); + fclose(in); + return EXIT_SUCCESS; + } + + FILE *preprocessed_in = NULL; + 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 pp_result = pclose(preprocessed_in); + fclose(out); + /* remove output file in case of error */ + if (out != stdout && pp_result != EXIT_SUCCESS) { + unlink(outname); + } + return pp_result; + } + + in = preprocessed_in; + filetype = next_filetype; + break; + + default: + break; + } + + FILE *asm_out; + if (mode == Compile) { + asm_out = out; + } else { + asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "ccs"); + } + + if (in == NULL) + in = open_file(filename); + + /* preprocess and compile */ + if (filetype == FILETYPE_PREPROCESSED_C) { + 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) { + print_to_file(out); + print_ast(unit); + } + + 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) { + fprintf(stderr, "%u warning(s)\n", warning_count); + } + + 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) { + write_fluffy_decls(out, unit); + continue; + } 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; + } + + if (mode == CompileDump) { + /* find irg */ + ident *id = new_id_from_str(dumpfunction); + ir_graph *irg = NULL; + int n_irgs = get_irp_n_irgs(); + for (int i = 0; i < n_irgs; ++i) { + ir_graph *tirg = get_irp_irg(i); + ident *irg_id = get_entity_ident(get_irg_entity(tirg)); + if (irg_id == id) { + irg = tirg; + break; + } + } + + if (irg == NULL) { + fprintf(stderr, "No graph for function '%s' found\n", + dumpfunction); + return EXIT_FAILURE; + } + + dump_ir_graph_file(out, irg); + fclose(out); + return EXIT_SUCCESS; + } + + 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) { + fclose(asm_out); + } + } + + if (mode == Compile) + continue; + + /* if we're here then we have preprocessed assembly */ + filename = asm_tempfile; + filetype = FILETYPE_PREPROCESSED_ASSEMBLER; + + /* assemble */ + if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) { + char temp[1024]; + const char *filename_o; + if (mode == CompileAssemble) { + fclose(out); + filename_o = outname; + } else { + FILE *tempf = make_temp_file(temp, sizeof(temp), "cco"); + fclose(tempf); + filename_o = temp; + } + + assemble(filename_o, filename); - link(sname, outname); + size_t len = strlen(filename_o) + 1; + filename = obstack_copy(&file_obst, filename_o, len); + filetype = FILETYPE_OBJECT; + } + + /* ok we're done here, process next file */ + file->name = filename; + file->type = filetype; + } + + if (result != EXIT_SUCCESS) { + if (out != stdout) + unlink(outname); + return result; } + /* link program file */ + if (mode == CompileAssembleLink) { + 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(&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) + continue; + + add_flag(&file_obst, "%s", entry->name); + } + + add_flag(&file_obst, "-o"); + add_flag(&file_obst, outname); + obstack_printf(&file_obst, "%s", flags); + obstack_1grow(&file_obst, '\0'); + + char *commandline = obstack_finish(&file_obst); + + if (verbose) { + puts(commandline); + } + int err = system(commandline); + if (err != EXIT_SUCCESS) { + fprintf(stderr, "linker reported an error\n"); + 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(); + exit_lexer(); exit_typehash(); exit_types(); - exit_lexer(); exit_tokens(); exit_symbol_table(); - return 0; + return EXIT_SUCCESS; }