X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=876416a07715756df9b65ca5b9d21c929b5ee376;hb=779610287a11b207e958e31a29f0dd9ea5459e39;hp=49446f0496a421d2cfa6ba266f5cf0bc0698bf4a;hpb=e1430cd8d2ec9dfa454da921a6fdb9a58030573e;p=cparser diff --git a/main.c b/main.c index 49446f0..876416a 100644 --- a/main.c +++ b/main.c @@ -1,3 +1,7 @@ +/* + * This file is part of cparser. + * Copyright (C) 2012 Matthias Braun + */ #include #define _GNU_SOURCE @@ -31,187 +35,458 @@ #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 -#ifndef WITH_LIBCORE -#define WITH_LIBCORE -#endif - #include #include +#include -#include "lexer.h" +#include "adt/util.h" +#include "ast_t.h" +#include "preprocessor.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_cmdline.h" +#include "driver/firm_timing.h" +#include "driver/firm_machine.h" #include "adt/error.h" -#include "write_fluffy.h" +#include "adt/strutil.h" +#include "adt/array.h" +#include "symbol_table.h" +#include "wrappergen/write_fluffy.h" +#include "wrappergen/write_jna.h" +#include "wrappergen/write_compoundsizes.h" #include "revision.h" +#include "warning.h" +#include "help.h" +#include "mangle.h" +#include "printer.h" #ifndef PREPROCESSOR -#define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int" +#ifndef __WIN32__ +#define PREPROCESSOR "gcc -E -U__STRICT_ANSI__ -U__BLOCKS__" +#else +#define PREPROCESSOR "cpp -U__STRICT_ANSI__" +#endif #endif #ifndef LINKER -#define LINKER "gcc -m32" +#define LINKER "gcc" #endif #ifndef ASSEMBLER -#define ASSEMBLER "as --32" +#define ASSEMBLER "gcc -c -xassembler" #endif -/** The current c mode/dialect. */ -unsigned int c_mode = _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; +unsigned int c_mode = _C89 | _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; + +static bool char_is_signed = true; +static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT; +static unsigned features_on = 0; +static unsigned features_off = 0; +static const char *dumpfunction = NULL; +static struct obstack file_obst; +static const char *external_preprocessor = PREPROCESSOR; + +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 const char *outname; +static bool define_intmax_types; +static const char *input_encoding; +static bool construct_dep_target; + +typedef enum lang_standard_t { + STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */ + STANDARD_ANSI, /* ISO C90 (for C) or ISO C++ 1998 (for C++) */ + STANDARD_C89, /* ISO C90 (sic) */ + STANDARD_C89AMD1, /* ISO C90 as modified in amendment 1 */ + STANDARD_C99, /* ISO C99 */ + STANDARD_C11, /* ISO C11 */ + STANDARD_GNU89, /* ISO C90 plus GNU extensions (including some C99) */ + STANDARD_GNU99, /* ISO C99 plus GNU extensions */ + STANDARD_GNU11, /* ISO C11 plus GNU extensions */ + STANDARD_CXX98, /* ISO C++ 1998 plus amendments */ + STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */ +} lang_standard_t; + +typedef enum compilation_unit_type_t { + COMPILATION_UNIT_AUTODETECT, + COMPILATION_UNIT_C, + COMPILATION_UNIT_PREPROCESSED_C, + COMPILATION_UNIT_CXX, + COMPILATION_UNIT_PREPROCESSED_CXX, + COMPILATION_UNIT_AST, + COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION, + COMPILATION_UNIT_ASSEMBLER, + COMPILATION_UNIT_PREPROCESSED_ASSEMBLER, + COMPILATION_UNIT_OBJECT, + COMPILATION_UNIT_IR, + COMPILATION_UNIT_UNKNOWN +} compilation_unit_type_t; + +typedef struct compilation_unit_t compilation_unit_t; +struct compilation_unit_t { + const char *name; /**< filename or "-" for stdin */ + FILE *input; /**< input (NULL if not opened yet) */ + bool input_is_pipe; + compilation_unit_type_t type; + lang_standard_t standard; + translation_unit_t *ast; + bool parse_errors; + compilation_unit_t *next; +}; + +static char **temp_files; -static int verbose; -static struct obstack cppflags_obst; - -#if defined(_DEBUG) || defined(FIRM_DEBUG) -/** - * Debug printf implementation. - * - * @param fmt printf style format parameter - */ -void dbg_printf(const char *fmt, ...) +static void get_output_name(char *buf, size_t buflen, const char *inputname, + const char *newext) { - va_list list; - - if (firm_dump.debug_print) { - va_start(list, fmt); - vprintf(fmt, list); - va_end(list); - } /* if */ + 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"); } -#endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */ -static void initialize_firm(void) +static bool close_input(compilation_unit_t *unit) { - firm_early_init(); - - dump_consts_local(1); - dump_keepalive_edges(1); + assert(unit->input); + bool res; + if (unit->input == stdin) { + res = true; + } else if (unit->input_is_pipe) { + res = pclose(unit->input) == EXIT_SUCCESS; + } else { + fclose(unit->input); + res = true; + } + unit->input = NULL; + unit->name = NULL; + return res; } -static void get_output_name(char *buf, size_t buflen, const char *inputname, - const char *newext) +static void print_error_summary(void) { - size_t last_dot = 0xffffffff; - size_t i = 0; - - if(inputname == NULL) { - snprintf(buf, buflen, "a%s", newext); - return; + if (error_count > 0) { + /* parsing failed because of errors */ + fprintf(stderr, "%u error(s), %u warning(s)\n", error_count, + warning_count); + } else if (warning_count > 0) { + fprintf(stderr, "%u warning(s)\n", warning_count); } +} - for(const char *c = inputname; *c != 0; ++c) { - if(*c == '.') - last_dot = i; - ++i; +static void do_parsing(compilation_unit_t *unit) +{ + ir_timer_t *t_parsing = ir_timer_new(); + timer_register(t_parsing, "Frontend: Parsing"); + timer_start(t_parsing); + + start_parsing(); + + switch_pp_input(unit->input, unit->name, NULL, false); + parse(); + unit->ast = finish_parsing(); + check_unclosed_conditionals(); + close_pp_input(); + bool res = close_input(unit); + + print_error_summary(); + + unit->type = COMPILATION_UNIT_AST; + unit->parse_errors = error_count > 0 || !res; + timer_stop(t_parsing); + if (stat_ev_enabled) { + stat_ev_dbl("time_parsing", ir_timer_elapsed_sec(t_parsing)); } - if(last_dot == 0xffffffff) - last_dot = i; +} - if(last_dot >= buflen) - panic("filename too long"); - memcpy(buf, inputname, last_dot); +static void add_flag(struct obstack *obst, const char *format, ...) +{ + char buf[65536]; + va_list ap; - size_t extlen = strlen(newext) + 1; - if(extlen + last_dot >= buflen) - panic("filename too long"); - memcpy(buf+last_dot, newext, extlen); + va_start(ap, format); +#ifdef _WIN32 + int len = +#endif + vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); + + 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 translation_unit_t *do_parsing(FILE *const in, const char *const input) +static const char *type_to_string(type_t *type) { - lexer_open_stream(in, input); - translation_unit_t *unit = parse(); - return unit; + assert(type->kind == TYPE_ATOMIC); + return get_atomic_kind_name(type->atomic.akind); } -static void lextest(FILE *in, const char *fname) +static char const* str_lang_standard(lang_standard_t const standard) { - lexer_open_stream(in, fname); - - do { - lexer_next_preprocessing_token(); - print_token(stdout, &lexer_token); - puts(""); - } while(lexer_token.type != T_EOF); + switch (standard) { + case STANDARD_C89: return "c89"; + case STANDARD_C89AMD1: return "iso9899:199409"; + case STANDARD_C99: return "c99"; + case STANDARD_C11: return "c11"; + case STANDARD_GNU89: return "gnu89"; + case STANDARD_GNU99: return "gnu99"; + case STANDARD_GNU11: return "gnu11"; + case STANDARD_CXX98: return "c++98"; + case STANDARD_GNUXX98: return "gnu++98"; + case STANDARD_ANSI: break; + case STANDARD_DEFAULT: break; + } + panic("invalid standard"); } -static FILE* preprocess(FILE* in, const char *fname) +static bool run_external_preprocessor(compilation_unit_t *unit) { - char buf[4096]; + obstack_1grow(&cppflags_obst, '\0'); const char *flags = obstack_finish(&cppflags_obst); - if(in != stdin) { - snprintf(buf, sizeof(buf), PREPROCESSOR " %s %s", flags, fname); + const char *preprocessor = getenv("CPARSER_PP"); + if (preprocessor != NULL) { + obstack_printf(&cppflags_obst, "%s ", preprocessor); } else { - /* read from stdin */ - snprintf(buf, sizeof(buf), PREPROCESSOR " %s -", flags); + if (target_triple != NULL) + obstack_printf(&cppflags_obst, "%s-", target_triple); + obstack_printf(&cppflags_obst, "%s", external_preprocessor); + } + + char const *lang; + switch (unit->type) { + case COMPILATION_UNIT_C: lang = "c"; break; + case COMPILATION_UNIT_CXX: lang = "c++"; break; + case COMPILATION_UNIT_ASSEMBLER: lang = "assembler-with-cpp"; break; + default: lang = NULL; break; + } + if (lang) + add_flag(&cppflags_obst, "-x%s", lang); + + if (unit->type == COMPILATION_UNIT_C + || unit->type == COMPILATION_UNIT_CXX) { + add_flag(&cppflags_obst, "-std=%s", str_lang_standard(unit->standard)); + + /* 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)); + } + } + if (flags[0] != '\0') { + size_t len = strlen(flags); + obstack_1grow(&cppflags_obst, ' '); + obstack_grow(&cppflags_obst, flags, len); + } + + /* handle dependency generation */ + if (construct_dep_target) { + static char dep_target[4096]; + if (outname != 0) { + size_t len = strlen(outname); + if (len > sizeof(dep_target)-4) /* leave room for .d extension */ + len = sizeof(dep_target)-4; + memcpy(dep_target, outname, len); + /* replace extension with .d if found */ + char *dot = &dep_target[len-1]; + for ( ; dot >= dep_target && *dot != '/'; --dot) { + if (*dot == '.') { + dot[1] = 'd'; + len = (dot-dep_target)+2; + break; + } + } + dep_target[len] = '\0'; + } else { + get_output_name(dep_target, sizeof(dep_target), unit->name, ".d"); + } + + add_flag(&cppflags_obst, "-MF"); + add_flag(&cppflags_obst, dep_target); } + assert(unit->input == NULL); + add_flag(&cppflags_obst, unit->name); + obstack_1grow(&cppflags_obst, '\0'); - if(verbose) { - puts(buf); + char *commandline = obstack_finish(&cppflags_obst); + if (verbose) { + puts(commandline); } - FILE* f = popen(buf, "r"); + FILE *f = popen(commandline, "r"); if (f == NULL) { - fprintf(stderr, "invoking preprocessor failed\n"); - exit(1); + position_t const pos = { unit->name, 0, 0, 0 }; + errorf(&pos, "invoking preprocessor failed"); + return false; + } + /* we do not really need that anymore */ + obstack_free(&cppflags_obst, commandline); + + unit->input = f; + unit->input_is_pipe = true; + switch (unit->type) { + case COMPILATION_UNIT_ASSEMBLER: + unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER; + break; + case COMPILATION_UNIT_C: + unit->type = COMPILATION_UNIT_PREPROCESSED_C; + break; + case COMPILATION_UNIT_CXX: + unit->type = COMPILATION_UNIT_PREPROCESSED_CXX; + break; + default: + unit->type = COMPILATION_UNIT_UNKNOWN; + break; } - return f; + + return true; } -static void do_link(const char *out, const char *in) +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); + 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); } - int err = system(buf); - if(err != 0) { - fprintf(stderr, "linker reported an error\n"); - exit(1); + if (flags[0] != '\0') + obstack_printf(&asflags_obst, " %s", flags); + + obstack_printf(&asflags_obst, " %s -o %s", in, out); + obstack_1grow(&asflags_obst, '\0'); + + char *commandline = obstack_finish(&asflags_obst); + if (verbose) { + puts(commandline); } + int err = system(commandline); + if (err != EXIT_SUCCESS) { + position_t const pos = { in, 0, 0, 0 }; + errorf(&pos, "assembler reported an error"); + exit(EXIT_FAILURE); + } + obstack_free(&asflags_obst, commandline); } -static void assemble(const char *out, const char *in) +static void print_file_name(const char *file) { - char buf[4096]; + add_flag(&ldflags_obst, "-print-file-name=%s", file); + + obstack_1grow(&ldflags_obst, '\0'); + const char *flags = obstack_finish(&ldflags_obst); - snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out); - if(verbose) { - puts(buf); + /* 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'); - int err = system(buf); - if(err != 0) { - fprintf(stderr, "assembler reported an error\n"); - exit(1); + char *commandline = obstack_finish(&ldflags_obst); + if (verbose) { + puts(commandline); } + int err = system(commandline); + if (err != EXIT_SUCCESS) { + position_t const pos = { file, 0, 0, 0 }; + errorf(&pos, "linker reported an error"); + 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; } @@ -220,29 +495,29 @@ 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; @@ -258,260 +533,1675 @@ static int mkstemp(char *templ) #endif /** - * an own version of tmpnam, which: writes in a buffer, appends a user specified - * suffix, emits no warnings during linking (like glibc/gnu ld do for tmpnam)... + * custom version of tmpnam, which: writes to an obstack, emits no warnings + * during linking (like glibc/gnu ld do for tmpnam)... */ -static FILE *make_temp_file(char *buffer, size_t buflen, - const char *prefix, const char *suffix) +static FILE *make_temp_file(const char *prefix, const char **name_result) { const char *tempdir = get_tempdir(); - - /* oh well... mkstemp doesn't accept a suffix after XXXXXX... */ - (void) suffix; - suffix = ""; - - snprintf(buffer, buflen, "%s/%sXXXXXX%s", tempdir, prefix, suffix); - - int fd = mkstemp(buffer); - if(fd == -1) { - fprintf(stderr, "couldn't create temporary file: %s\n", - strerror(errno)); - exit(1); + assert(obstack_object_size(&file_obst) == 0); + obstack_printf(&file_obst, "%s/%sXXXXXX", tempdir, prefix); + obstack_1grow(&file_obst, '\0'); + + char *name = obstack_finish(&file_obst); + int fd = mkstemp(name); + if (fd == -1) { + position_t const pos = { name, 0, 0, 0 }; + errorf(&pos, "could not create temporary file: %s", strerror(errno)); + return NULL; } FILE *out = fdopen(fd, "w"); - if(out == NULL) { - fprintf(stderr, "couldn't create temporary file FILE*\n"); - exit(1); + if (out == NULL) { + position_t const pos = { name, 0, 0, 0 }; + errorf(&pos, "could not open temporary file as FILE*"); + return NULL; } + ARR_APP1(char*, temp_files, name); + *name_result = name; return out; } -/** - * Do the necessary lowering for compound parameters. - */ -void lower_compound_params(void) +static void free_temp_files(void) { - lower_params_t params; + if (temp_files == NULL) + return; - params.def_ptr_alignment = 4; - params.flags = LF_COMPOUND_RETURN | LF_RETURN_HIDDEN; - params.hidden_params = ADD_HIDDEN_ALWAYS_IN_FRONT; - params.find_pointer_type = NULL; - params.ret_compound_in_regs = NULL; - lower_calls_with_compounds(¶ms); + size_t n_temp_files = ARR_LEN(temp_files); + size_t i; + for (i = 0; i < n_temp_files; ++i) { + char *file = temp_files[i]; + unlink(file); + } + DEL_ARR_F(temp_files); + temp_files = NULL; } typedef enum compile_mode_t { + BenchmarkParser, + PreprocessOnly, ParseOnly, Compile, CompileDump, + CompileExportIR, CompileAssemble, CompileAssembleLink, - LexTest, PrintAst, - PrintFluffy + PrintFluffy, + PrintJna, + PrintCompoundSizes, } 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_cparser_version_short(void) +{ + puts(cparser_REVISION); +} + +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("-Xpreprocessor 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("c90", "Same as -std=c89"); + put_choice("c11", "ISO C11 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("gnu11", "ISO C11 + 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", "-std=c90 (for C) or -std=c++98 (for C++)"); + 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("-Wa,OPTION", "Pass option directly to assembler"); + put_help("-Xassembler OPTION", "Pass option directly to assembler"); + put_help("-Wl,OPTION", "Pass option directly to linker"); + put_help("-Xlinker OPTION", "Pass option directly to linker"); +} + +static void print_help_debug(void) +{ + 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("--statev", "Produce statev output"); + put_help("--filtev=filter", "Set statev filter regex"); + 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 = 1 << 0, + HELP_PREPROCESSOR = 1 << 1, + HELP_PARSER = 1 << 2, + HELP_WARNINGS = 1 << 3, + HELP_OPTIMIZATION = 1 << 4, + HELP_CODEGEN = 1 << 5, + HELP_LINKER = 1 << 6, + HELP_LANGUAGETOOLS = 1 << 7, + HELP_DEBUG = 1 << 8, + HELP_FIRM = 1 << 9, + + HELP_ALL = -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 compilation_unit_type_t get_unit_type_from_string(const char *string) +{ + if (streq(string, "c") || streq(string, "c-header")) + return COMPILATION_UNIT_C; + if (streq(string, "c++") || streq(string, "c++-header")) + return COMPILATION_UNIT_CXX; + if (streq(string, "assembler")) + return COMPILATION_UNIT_PREPROCESSED_ASSEMBLER; + if (streq(string, "assembler-with-cpp")) + return COMPILATION_UNIT_ASSEMBLER; + if (streq(string, "none")) + return COMPILATION_UNIT_AUTODETECT; + + return COMPILATION_UNIT_UNKNOWN; +} + +static bool init_os_support(void) +{ + wchar_atomic_kind = ATOMIC_TYPE_INT; + enable_main_collect2_hack = false; + define_intmax_types = false; + + if (firm_is_unixish_os(target_machine)) { + set_create_ld_ident(create_name_linux_elf); + } else if (firm_is_darwin_os(target_machine)) { + set_create_ld_ident(create_name_macho); + define_intmax_types = true; + } else if (firm_is_windows_os(target_machine)) { + 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) { + errorf(NULL, "target-triple '%s' is not in the form 'cpu_type-manufacturer-operating_system'", arg); + return false; + } + target_machine = triple; + return true; +} + +static unsigned decide_modulo_shift(unsigned type_size) +{ + if (architecture_modulo_shift == 0) + return 0; + return MAX(type_size, architecture_modulo_shift); +} + +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 { + errorf(NULL, "unknown cpu '%s' in target-triple", 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 *const type_ld = be_params->type_long_double; + if (type_ld) { + set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_ld); + atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_ld); + } + + ir_type *const type_ll = be_params->type_long_long; + if (type_ll) + set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_ll); + + ir_type *const type_ull = be_params->type_unsigned_long_long; + if (type_ull) + set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_ull); + + /* operating system ABI specifics */ + if (firm_is_darwin_os(target_machine)) { + if (is_ia32_cpu(target_machine->cpu_type)) { + 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 (firm_is_windows_os(target_machine)) { + if (is_ia32_cpu(target_machine->cpu_type)) { + props[ATOMIC_TYPE_LONGLONG].struct_alignment = 8; + props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 8; + props[ATOMIC_TYPE_DOUBLE].struct_alignment = 8; + } else 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 (firm_is_unixish_os(target_machine)) { + if (is_ia32_cpu(target_machine->cpu_type)) { + 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_ll) { + copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]); + } + if (!type_ull) { + copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG], + &props[ATOMIC_TYPE_ULONG]); + } + if (!type_ld) { + copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE], + &props[ATOMIC_TYPE_DOUBLE]); + } + + /* initialize firm pointer modes */ + char name[64]; + unsigned bit_size = machine_size; + unsigned modulo_shift = decide_modulo_shift(bit_size); + + snprintf(name, sizeof(name), "p%u", machine_size); + ir_mode *ptr_mode = new_reference_mode(name, irma_twos_complement, bit_size, 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; + } +} + +static void setup_cmode(const compilation_unit_t *unit) +{ + compilation_unit_type_t type = unit->type; + lang_standard_t standard = unit->standard; + if (type == COMPILATION_UNIT_PREPROCESSED_C || type == COMPILATION_UNIT_C) { + switch (standard) { + case STANDARD_C89: c_mode = _C89; break; + /* TODO determine difference between these two */ + case STANDARD_C89AMD1: c_mode = _C89; break; + case STANDARD_C99: c_mode = _C89 | _C99; break; + case STANDARD_C11: c_mode = _C89 | _C99 | _C11; break; + case STANDARD_GNU89: c_mode = _C89 | _GNUC; break; + case STANDARD_GNU11: c_mode = _C89 | _C99 | _C11 | _GNUC; break; + + case STANDARD_ANSI: + case STANDARD_CXX98: + case STANDARD_GNUXX98: + case STANDARD_DEFAULT: + fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C\n", str_lang_standard(standard)); + /* FALLTHROUGH */ + case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break; + } + } else if (type == COMPILATION_UNIT_PREPROCESSED_CXX + || type == COMPILATION_UNIT_CXX) { + switch (standard) { + case STANDARD_CXX98: c_mode = _CXX; break; + + case STANDARD_ANSI: + case STANDARD_C89: + case STANDARD_C89AMD1: + case STANDARD_C99: + case STANDARD_C11: + case STANDARD_GNU89: + case STANDARD_GNU99: + case STANDARD_GNU11: + case STANDARD_DEFAULT: + fprintf(stderr, "warning: command line option \"-std=%s\" is not valid for C++\n", str_lang_standard(standard)); + /* FALLTHROUGH */ + case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break; + } + } + + c_mode |= features_on; + c_mode &= ~features_off; +} + +static void determine_unit_standard(compilation_unit_t *unit, + lang_standard_t standard) +{ + unit->standard = standard; + switch (standard) { + case STANDARD_ANSI: + switch (unit->type) { + case COMPILATION_UNIT_C: + case COMPILATION_UNIT_PREPROCESSED_C: + unit->standard = STANDARD_C89; + break; + case COMPILATION_UNIT_CXX: + case COMPILATION_UNIT_PREPROCESSED_CXX: + unit->standard = STANDARD_CXX98; + break; + default: + break; + } + break; + + case STANDARD_DEFAULT: + switch (unit->type) { + case COMPILATION_UNIT_C: + case COMPILATION_UNIT_PREPROCESSED_C: + unit->standard = STANDARD_GNU99; + break; + case COMPILATION_UNIT_CXX: + case COMPILATION_UNIT_PREPROCESSED_CXX: + unit->standard = STANDARD_GNUXX98; + break; + default: + break; + } + break; + + default: + break; + } +} + +static bool output_preprocessor_tokens(compilation_unit_t *unit, FILE *out) +{ + /* just here for gcc compatibility */ + fprintf(out, "# 1 \"%s\"\n", unit->name); + fprintf(out, "# 1 \"\"\n"); + fprintf(out, "# 1 \"\"\n"); + + set_preprocessor_output(out); + switch_pp_input(unit->input, unit->name, NULL, false); + + for (;;) { + next_preprocessing_token(); + if (pp_token.kind == T_EOF) + break; + emit_pp_token(); + } + + fputc('\n', out); + check_unclosed_conditionals(); + close_pp_input(); + print_error_summary(); + set_preprocessor_output(NULL); + + if (unit->type == COMPILATION_UNIT_C) { + unit->type = COMPILATION_UNIT_PREPROCESSED_C; + } else if (unit->type == COMPILATION_UNIT_CXX) { + unit->type = COMPILATION_UNIT_PREPROCESSED_CXX; + } + bool res = close_input(unit); + return res && error_count == 0; +} + +static void copy_file(FILE *dest, FILE *input) +{ + char buf[16384]; + + for (;;) { + size_t read = fread(buf, 1, sizeof(buf), input); + if (read == 0) + break; + if (fwrite(buf, 1, read, dest) != read) { + perror("could not write output"); + } + } +} + +static bool open_input(compilation_unit_t *unit) +{ + /* input already available as FILE? */ + if (unit->input != NULL) + return true; + + const char *const inputname = unit->name; + unit->input_is_pipe = false; + if (streq(inputname, "-")) { + unit->input = stdin; + } else { + unit->input = fopen(inputname, "r"); + if (unit->input == NULL) { + position_t const pos = { inputname, 0, 0, 0 }; + errorf(&pos, "could not open: %s", strerror(errno)); + return false; + } + } + return true; +} + +static void node_counter(ir_node *node, void *env) +{ + (void)node; + unsigned long long *count = (unsigned long long*)env; + ++(*count); +} + +static unsigned long long count_firm_nodes(void) +{ + unsigned long long count = 0; + + int n_irgs = get_irp_n_irgs(); + for (int i = 0; i < n_irgs; ++i) { + ir_graph *irg = get_irp_irg(i); + irg_walk_graph(irg, node_counter, NULL, &count); + } + return count; +} + +static int compilation_loop(compile_mode_t mode, compilation_unit_t *units, + lang_standard_t standard, FILE *out) +{ + int result = EXIT_SUCCESS; + bool already_constructed_firm = false; + for (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) { + const char *const inputname = unit->name; + + determine_unit_standard(unit, standard); + setup_cmode(unit); + + stat_ev_ctx_push_str("compilation_unit", inputname); + +again: + switch (unit->type) { + case COMPILATION_UNIT_IR: { + if (!open_input(unit)) { + result = EXIT_FAILURE; + break; + } + if (ir_import_file(unit->input, unit->name)) { + position_t const pos = { inputname, 0, 0, 0 }; + errorf(&pos, "import of firm graph failed"); + result = EXIT_FAILURE; + break; + } + unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION; + goto again; + } + case COMPILATION_UNIT_ASSEMBLER: { + if (external_preprocessor == NULL) { + panic("preprocessed assembler not possible with internal preprocessor yet"); + } + if (!run_external_preprocessor(unit)) { + result = EXIT_FAILURE; + break; + } + /* write file to output... */ + FILE *asm_out; + if (mode == PreprocessOnly) { + asm_out = out; + } else { + asm_out = make_temp_file("ccs", &unit->name); + } + assert(unit->input != NULL); + assert(unit->input_is_pipe); + copy_file(asm_out, unit->input); + if (asm_out != out) + fclose(asm_out); + unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER; + goto again; + } + case COMPILATION_UNIT_C: + case COMPILATION_UNIT_CXX: + if (external_preprocessor != NULL) { + if (!run_external_preprocessor(unit)) { + result = EXIT_FAILURE; + break; + } + goto again; + } + /* FALLTHROUGH */ + + case COMPILATION_UNIT_PREPROCESSED_C: + case COMPILATION_UNIT_PREPROCESSED_CXX: { + if (!open_input(unit)) { + result = EXIT_FAILURE; + break; + } + init_tokens(); + + if (mode == PreprocessOnly) { + if (!output_preprocessor_tokens(unit, out)) { + result = EXIT_FAILURE; + break; + } + break; + } + + /* do the actual parsing */ + do_parsing(unit); + goto again; + } + case COMPILATION_UNIT_AST: + /* prints the AST even if errors occurred */ + if (mode == PrintAst) { + print_to_file(out); + print_ast(unit->ast); + } + if (unit->parse_errors) { + result = EXIT_FAILURE; + break; + } + + if (mode == BenchmarkParser) { + break; + } else if (mode == PrintFluffy) { + write_fluffy_decls(out, unit->ast); + break; + } else if (mode == PrintJna) { + write_jna_decls(out, unit->ast); + break; + } else if (mode == PrintCompoundSizes) { + write_compoundsizes(out, unit->ast); + break; + } + + /* build the firm graph */ + ir_timer_t *t_construct = ir_timer_new(); + timer_register(t_construct, "Frontend: Graph construction"); + timer_start(t_construct); + if (already_constructed_firm) { + panic("compiling multiple files/translation units not possible"); + } + init_implicit_optimizations(); + translation_unit_to_firm(unit->ast); + already_constructed_firm = true; + timer_stop(t_construct); + if (stat_ev_enabled) { + stat_ev_dbl("time_graph_construction", ir_timer_elapsed_sec(t_construct)); + stat_ev_int("size_graph_construction", count_firm_nodes()); + } + unit->type = COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION; + goto again; + + case COMPILATION_UNIT_INTERMEDIATE_REPRESENTATION: + if (mode == ParseOnly) + break; + + 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) { + errorf(NULL, "no graph for function '%s' found", dumpfunction); + return EXIT_FAILURE; + } + + dump_ir_graph_file(out, irg); + fclose(out); + return EXIT_SUCCESS; + } + + if (mode == CompileExportIR) { + ir_export_file(out); + if (ferror(out) != 0) { + errorf(NULL, "writing to output failed"); + return EXIT_FAILURE; + } + return EXIT_SUCCESS; + } + + FILE *asm_out; + if (mode == Compile) { + asm_out = out; + } else { + asm_out = make_temp_file("ccs", &unit->name); + } + ir_timer_t *t_opt_codegen = ir_timer_new(); + timer_register(t_opt_codegen, "Optimization and Codegeneration"); + timer_start(t_opt_codegen); + generate_code(asm_out, inputname); + timer_stop(t_opt_codegen); + if (stat_ev_enabled) { + stat_ev_dbl("time_opt_codegen", ir_timer_elapsed_sec(t_opt_codegen)); + } + if (asm_out != out) { + fclose(asm_out); + } + unit->type = COMPILATION_UNIT_PREPROCESSED_ASSEMBLER; + goto again; + case COMPILATION_UNIT_PREPROCESSED_ASSEMBLER: + if (mode != CompileAssemble && mode != CompileAssembleLink) + break; + + /* assemble */ + const char *input = unit->name; + if (mode == CompileAssemble) { + fclose(out); + unit->name = outname; + } else { + FILE *tempf = make_temp_file("cco", &unit->name); + /* hackish... */ + fclose(tempf); + } + + assemble(unit->name, input); + + unit->type = COMPILATION_UNIT_OBJECT; + goto again; + case COMPILATION_UNIT_UNKNOWN: + case COMPILATION_UNIT_AUTODETECT: + case COMPILATION_UNIT_OBJECT: + break; + } + + stat_ev_ctx_pop("compilation_unit"); + } + return result; +} + +static int link_program(compilation_unit_t *units) +{ + 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 (compilation_unit_t *unit = units; unit != NULL; unit = unit->next) { + if (unit->type != COMPILATION_UNIT_OBJECT) + continue; + + add_flag(&file_obst, "%s", unit->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) { + errorf(NULL, "linker reported an error"); + return EXIT_FAILURE; + } + return EXIT_SUCCESS; } int main(int argc, char **argv) { - initialize_firm(); + const char *print_file_name_file = NULL; + compile_mode_t mode = CompileAssembleLink; + int opt_level = 1; + char cpu_arch[16] = "ia32"; + compilation_unit_t *units = NULL; + compilation_unit_t *last_unit = NULL; + bool produce_statev = false; + const char *filtev = NULL; + bool profile_generate = false; + bool profile_use = false; + bool do_timing = false; + bool print_timing = false; + + /* hack for now... */ + if (strstr(argv[0], "pptest") != NULL) { + extern int pptest_main(int argc, char **argv); + return pptest_main(argc, argv); + } - const char *input = NULL; - const char *outname = NULL; - const char *dumpfunction = NULL; - compile_mode_t mode = CompileAssembleLink; + temp_files = NEW_ARR_F(char*, 0); + atexit(free_temp_files); obstack_init(&cppflags_obst); + obstack_init(&ldflags_obst); + obstack_init(&asflags_obst); + obstack_init(&file_obst); + init_include_paths(); #define GET_ARG_AFTER(def, args) \ + do { \ def = &arg[sizeof(args)-1]; \ - if(def[0] == '\0') { \ + if (def[0] == '\0') { \ ++i; \ - if(i >= argc) { \ - fprintf(stderr, "error: expected argument after '" args "'\n"); \ + if (i >= argc) { \ + errorf(NULL, "expected argument after '" args "'"); \ argument_errors = true; \ break; \ } \ def = argv[i]; \ - if(def[0] == '-' && def[1] != '\0') { \ - fprintf(stderr, "error: expected argument after '" args "'\n"); \ + if (def[0] == '-' && def[1] != '\0') { \ + errorf(NULL, "expected argument after '" args "'"); \ argument_errors = true; \ continue; \ } \ + } \ + } while (0) + +#define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0') + + /* initialize this early because it has to parse options */ + gen_firm_init(); + + /* early options parsing (find out optimization level and OS) */ + for (int i = 1; i < argc; ++i) { + const char *arg = argv[i]; + if (arg[0] != '-') + continue; + + const char *option = &arg[1]; + if (option[0] == 'O') { + sscanf(&option[1], "%d", &opt_level); + } } - bool help_displayed = false; - bool argument_errors = false; - for(int i = 1; i < argc; ++i) { + if (target_machine == NULL) { + target_machine = firm_get_host_machine(); + } + choose_optimization_pack(opt_level); + setup_target_machine(); + + /* parse rest of options */ + lang_standard_t standard = STANDARD_DEFAULT; + compilation_unit_type_t forced_unittype = COMPILATION_UNIT_AUTODETECT; + help_sections_t help = HELP_NONE; + bool argument_errors = false; + for (int i = 1; i < argc; ++i) { const char *arg = argv[i]; - if(strncmp(arg, "-o", 2) == 0) { - GET_ARG_AFTER(outname, "-o"); - } else if(strcmp(arg, "-c") == 0) { - mode = CompileAssemble; - } else if(strcmp(arg, "-S") == 0) { - mode = Compile; - } else if(strcmp(arg, "--gcc") == 0) { - c_mode |= _GNUC; - } else if(strcmp(arg, "--no-gcc") == 0) { - c_mode &= ~_GNUC; - } else if(strcmp(arg, "--ms") == 0) { - c_mode |= _MS; - } else if(strcmp(arg, "--signed-chars") == 0) { - char_is_signed = true; - } else if(strcmp(arg, "--unsigned-chars") == 0) { - char_is_signed = false; - } else if(strcmp(arg, "--no-ms") == 0) { - c_mode &= ~_MS; - } else if(strcmp(arg, "--lextest") == 0) { - mode = LexTest; - } else if(strcmp(arg, "--print-ast") == 0) { - mode = PrintAst; - } else if(strcmp(arg, "--print-fluffy") == 0) { - mode = PrintFluffy; - } else if(strcmp(arg, "--version") == 0) { - firm_version_t ver; - firm_get_version(&ver); - printf("cparser (%d.%d %s) using libFirm (%d.%d", 0, 1, cparser_REVISION, ver.major, ver.minor); - if(ver.revision[0] != 0) { - putchar(' '); - fputs(ver.revision, stdout); - } - if(ver.build[0] != 0) { - putchar(' '); - fputs(ver.build, stdout); - } - puts(")\n"); - exit(EXIT_SUCCESS); - } else if(strcmp(arg, "-fsyntax-only") == 0) { - mode = ParseOnly; - } else if(strncmp(arg, "-I", 2) == 0) { - const char *opt; - GET_ARG_AFTER(opt, "-I"); - obstack_printf(&cppflags_obst, " -I%s", opt); - } else if(strncmp(arg, "-D", 2) == 0) { - const char *opt; - GET_ARG_AFTER(opt, "-D"); - obstack_printf(&cppflags_obst, " -D%s", opt); - } else if(strcmp(arg, "--dump-function") == 0) { - ++i; - if(i >= argc) { - fprintf(stderr, "error: " - "expected argument after '--dump-function'\n"); - argument_errors = true; - break; - } - dumpfunction = argv[i]; - mode = CompileDump; - } else if(strcmp(arg, "-v") == 0) { - verbose = 1; - } else if(arg[0] == '-' && arg[1] == 'f') { - const char *opt; - GET_ARG_AFTER(opt, "-f"); - int res = firm_option(opt); - if (res == 0) { - fprintf(stderr, "error: unknown Firm option '-f %s'\n", opt); - argument_errors = true; + 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') { + /* TODO: parse -gX with 0<=X<=3... */ + set_be_option("debug=frameinfo"); + set_be_option("ia32-optcc=false"); + } 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 (res == -1) { - help_displayed = true; - } - } else if(arg[0] == '-' && arg[1] == 'b') { - const char *opt; - GET_ARG_AFTER(opt, "-b"); - int res = firm_be_option(opt); - if (res == 0) { - fprintf(stderr, "error: unknown Firm backend option '-b %s'\n", - opt); - argument_errors = true; - } else if (res == -1) { - help_displayed = true; - } - } else if(arg[0] == '-' && arg[1] == 'm') { - const char *opt; - GET_ARG_AFTER(opt, "-m"); - char *endptr; - long int value = strtol(opt, &endptr, 10); - if (*endptr != '\0') { - fprintf(stderr, "error: wrong option '-m %s'\n", opt); - argument_errors = true; - } - if (value != 16 && value != 32 && value != 64) { - fprintf(stderr, "error: option -m supports only 16, 32 or 64\n"); - argument_errors = true; - } else - machine_size = (unsigned int)value; - } else if(arg[0] == '-') { - if (arg[1] == '\0') { - if(input != NULL) { - fprintf(stderr, "error: multiple input files specified\n"); + } else if (option[0] == 'I') { + const char *opt; + GET_ARG_AFTER(opt, "-I"); + add_flag(&cppflags_obst, "-I%s", opt); + append_include_path(&bracket_searchpath, 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_unittype = get_unit_type_from_string(opt); + if (forced_unittype == COMPILATION_UNIT_UNKNOWN) { + errorf(NULL, "unknown language '%s'", opt); argument_errors = true; + } + } else if (SINGLE_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, "idirafter")) { + const char *opt; + GET_ARG_AFTER(opt, "-idirafter"); + add_flag(&cppflags_obst, "-idirafter"); + add_flag(&cppflags_obst, "%s", opt); + append_include_path(&after_searchpath, 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); + append_include_path(&system_searchpath, opt); + } else if (streq(option, "iquote")) { + const char *opt; + GET_ARG_AFTER(opt, "-iquote"); + add_flag(&cppflags_obst, "-iquote"); + add_flag(&cppflags_obst, "%s", opt); + append_include_path("e_searchpath, opt); + } 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"); + } 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) { + errorf(NULL, "invalid visibility '%s' specified", 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 { - input = arg; + /* -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 { + if (firm_option(orig_opt) == 0) { + errorf(NULL, "unknown Firm option '-f%s'", orig_opt); + argument_errors = true; + continue; + } + } } - } else if(strcmp(arg, "-pedantic") == 0) { - fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); - } else if(arg[1] == 'O' || - arg[1] == 'f' || - arg[1] == 'W' || - arg[1] == 'g' || - strncmp(arg + 1, "std=", 4) == 0) { + } else if (option[0] == '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 { + if (be_parse_arg(opt) == 0) { + errorf(NULL, "unknown Firm backend option '-b %s'", 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, "a,")) { + const char *opt; + GET_ARG_AFTER(opt, "-Wa,"); + add_flag(&asflags_obst, "-Wa,%s", opt); + } 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") + || 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) { + errorf(NULL, "unknown architecture '%s'", 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); + if (be_parse_arg(arch_opt) == 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); + if (be_parse_arg(arch_opt) == 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 { + errorf(NULL, "option -mfpmath supports only 387 or sse"); + argument_errors = true; + } + if (!argument_errors) { + snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=%s", cpu_arch, opt); + if (be_parse_arg(arch_opt) == 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); + if (be_parse_arg(arch_opt) == 0) + argument_errors = true; + } else if (streq(opt, "rtd")) { + default_calling_convention = CC_STDCALL; + } else if (strstart(opt, "regparm=")) { + errorf(NULL, "regparm convention not supported yet"); + 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); + if (be_parse_arg(arch_opt) == 0) + argument_errors = true; + } else if (streq(opt, "sse2")) { + /* ignore for now, our x86 backend always uses sse when + * sse is requested */ + } else { + long int value = strtol(opt, NULL, 10); + if (value == 0) { + errorf(NULL, "wrong option '-m %s'", opt); + argument_errors = true; + } else if (value != 16 && value != 32 && value != 64) { + errorf(NULL, "option -m supports only 16, 32 or 64"); + 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 (option[0] == 'X') { + if (streq(option + 1, "assembler")) { + const char *opt; + GET_ARG_AFTER(opt, "-Xassembler"); + add_flag(&asflags_obst, "-Xassembler"); + add_flag(&asflags_obst, opt); + } else if (streq(option + 1, "preprocessor")) { + const char *opt; + GET_ARG_AFTER(opt, "-Xpreprocessor"); + add_flag(&cppflags_obst, "-Xpreprocessor"); + add_flag(&cppflags_obst, opt); + } else if (streq(option + 1, "linker")) { + const char *opt; + GET_ARG_AFTER(opt, "-Xlinker"); + add_flag(&ldflags_obst, "-Xlinker"); + add_flag(&ldflags_obst, opt); + } + } else if (streq(option, "pg")) { + set_be_option("gprof"); + add_flag(&ldflags_obst, "-pg"); + } else if (streq(option, "ansi")) { + standard = STANDARD_ANSI; + } else if (streq(option, "pedantic")) { 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, "c11") ? STANDARD_C11 : + streq(o, "c1x") ? STANDARD_C11 : // deprecated + streq(o, "c89") ? STANDARD_C89 : + streq(o, "c90") ? STANDARD_C89 : + streq(o, "c99") ? STANDARD_C99 : + streq(o, "c9x") ? STANDARD_C99 : // deprecated + streq(o, "gnu++98") ? STANDARD_GNUXX98 : + streq(o, "gnu11") ? STANDARD_GNU11 : + streq(o, "gnu1x") ? STANDARD_GNU11 : // deprecated + 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_C89AMD1 : + streq(o, "iso9899:1999") ? STANDARD_C99 : + streq(o, "iso9899:199x") ? STANDARD_C99 : // deprecated + streq(o, "iso9899:2011") ? STANDARD_C11 : + (fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg), standard); + } else if (streq(option, "version")) { + print_cparser_version(); + return EXIT_SUCCESS; + } else if (streq(option, "dumpversion")) { + /* gcc compatibility option */ + print_cparser_version_short(); + return EXIT_SUCCESS; + } 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, "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-compound-sizes")) { + mode = PrintCompoundSizes; + } else if (streq(option, "print-jna")) { + mode = PrintJna; + } else if (streq(option, "jna-limit")) { + ++i; + if (i >= argc) { + errorf(NULL, "expected argument after '--jna-limit'"); + argument_errors = true; + break; + } + jna_limit_output(argv[i]); + } else if (streq(option, "jna-libname")) { + ++i; + if (i >= argc) { + errorf(NULL, "expected argument after '--jna-libname'"); + argument_errors = true; + break; + } + jna_set_libname(argv[i]); + } else if (streq(option, "external-pp")) { + if (i+1 < argc && argv[i+1][0] != '-') { + ++i; + external_preprocessor = argv[i+1]; + } else { + external_preprocessor = PREPROCESSOR; + } + } else if (streq(option, "no-external-pp")) { + external_preprocessor = NULL; + } else if (streq(option, "time")) { + do_timing = true; + print_timing = true; + } else if (streq(option, "statev")) { + do_timing = true; + produce_statev = true; + } else if (strstart(option, "filtev=")) { + GET_ARG_AFTER(filtev, "--filtev="); + } 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) { + errorf(NULL, "expected argument after '--dump-function'"); + argument_errors = true; + break; + } + dumpfunction = argv[i]; + mode = CompileDump; + } else if (streq(option, "export-ir")) { + mode = CompileExportIR; + } else if (streq(option, "unroll-loops")) { + /* ignore (gcc compatibility) */ + } else { + errorf(NULL, "unknown argument '%s'", arg); + argument_errors = true; + } } else { - fprintf(stderr, "error: unknown argument '%s'\n", arg); + errorf(NULL, "unknown argument '%s'", arg); argument_errors = true; } } else { - if(input != NULL) { - fprintf(stderr, "error: multiple input files specified\n"); - argument_errors = true; + compilation_unit_type_t type = forced_unittype; + if (type == COMPILATION_UNIT_AUTODETECT) { + if (streq(arg, "-")) { + /* - implicitly means C source file */ + type = COMPILATION_UNIT_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") ? COMPILATION_UNIT_ASSEMBLER : + streq(suffix, "a") ? COMPILATION_UNIT_OBJECT : + streq(suffix, "c") ? COMPILATION_UNIT_C : + streq(suffix, "i") ? COMPILATION_UNIT_PREPROCESSED_C : + streq(suffix, "C") ? COMPILATION_UNIT_CXX : + streq(suffix, "cc") ? COMPILATION_UNIT_CXX : + streq(suffix, "cp") ? COMPILATION_UNIT_CXX : + streq(suffix, "cpp") ? COMPILATION_UNIT_CXX : + streq(suffix, "CPP") ? COMPILATION_UNIT_CXX : + streq(suffix, "cxx") ? COMPILATION_UNIT_CXX : + streq(suffix, "c++") ? COMPILATION_UNIT_CXX : + streq(suffix, "ii") ? COMPILATION_UNIT_PREPROCESSED_CXX : + streq(suffix, "h") ? COMPILATION_UNIT_C : + streq(suffix, "ir") ? COMPILATION_UNIT_IR : + streq(suffix, "o") ? COMPILATION_UNIT_OBJECT : + streq(suffix, "s") ? COMPILATION_UNIT_PREPROCESSED_ASSEMBLER : + streq(suffix, "so") ? COMPILATION_UNIT_OBJECT : + COMPILATION_UNIT_OBJECT; /* gcc behavior: unknown file extension means object file */ + } + } + } + + compilation_unit_t *entry = OALLOCZ(&file_obst, compilation_unit_t); + entry->name = arg; + entry->type = type; + + if (last_unit != NULL) { + last_unit->next = entry; } else { - input = arg; + units = entry; } + last_unit = entry; } } - if(help_displayed) { + if (help != HELP_NONE) { + print_help(argv[0], help); return !argument_errors; } - if(argument_errors) { + + if (print_file_name_file != NULL) { + print_file_name(print_file_name_file); + return EXIT_SUCCESS; + } + if (units == NULL) { + errorf(NULL, "no input files specified"); + argument_errors = true; + } + + if (argument_errors) { usage(argv[0]); - return 1; + return EXIT_FAILURE; + } + + /* 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(); init_symbol_table(); - init_tokens(); - init_types(); + init_types_and_adjust(); init_typehash(); - init_lexer(); + init_basic_types(); + if (c_mode & _CXX) { + init_wchar_types(ATOMIC_TYPE_WCHAR_T); + } else { + init_wchar_types(wchar_atomic_kind); + } + init_preprocessor(); init_ast(); init_parser(); init_ast2firm(); + init_mangle(); - FILE *out; - char outnamebuf[4096]; - if(outname == NULL) { - switch(mode) { + if (do_timing) + timer_init(); + + char outnamebuf[4096]; + if (outname == NULL) { + const char *filename = units->name; + + switch (mode) { + case BenchmarkParser: case PrintAst: case PrintFluffy: - case LexTest: - if(outname == NULL) - outname = "-"; - break; + case PrintJna: + case PrintCompoundSizes: + case PreprocessOnly: case ParseOnly: + outname = "-"; break; case Compile: - get_output_name(outnamebuf, sizeof(outnamebuf), input, ".s"); + get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".s"); outname = outnamebuf; break; case CompileAssemble: - get_output_name(outnamebuf, sizeof(outnamebuf), input, ".o"); + get_output_name(outnamebuf, sizeof(outnamebuf), filename, ".o"); outname = outnamebuf; break; case CompileDump: @@ -519,140 +2209,87 @@ 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: - outname = "a.out"; + if (firm_is_windows_os(target_machine)) { + outname = "a.exe"; + } else { + outname = "a.out"; + } break; } } - if(outname != NULL) { - if(strcmp(outname, "-") == 0) { - out = stdout; - } else { - out = fopen(outname, "w"); - if(out == NULL) { - fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname, - strerror(errno)); - return 1; - } - } - } + assert(outname != NULL); - FILE *in; - if(input == NULL) { - fprintf(stderr, "%s: no input files\n", argv[0]); - return 1; - } else if(strcmp(input, "-") == 0) { - in = stdin; - input = ""; + FILE *out; + if (streq(outname, "-")) { + out = stdout; } else { - in = fopen(input, "r"); - if(in == NULL) { - fprintf(stderr, "Couldn't open '%s': %s\n", input, strerror(errno)); - return 1; + out = fopen(outname, "w"); + if (out == NULL) { + position_t const pos = { outname, 0, 0, 0 }; + errorf(&pos, "could not open for writing: %s", strerror(errno)); + return EXIT_FAILURE; } } - if(mode == LexTest) { - lextest(in, input); - fclose(in); - return 0; + if (produce_statev && units != NULL) { + /* attempt to guess a good name for the file */ + const char *first_cup = units->name; + if (first_cup != NULL) { + const char *dot = strrchr(first_cup, '.'); + const char *pos = dot ? dot : first_cup + strlen(first_cup); + char buf[pos-first_cup+1]; + strncpy(buf, first_cup, pos-first_cup); + buf[pos-first_cup] = '\0'; + + stat_ev_begin(buf, filtev); + } } - FILE *preprocessed_in = preprocess(in, input); - translation_unit_t *const unit = do_parsing(preprocessed_in, input); - pclose(preprocessed_in); - if(unit == NULL) - return 1; - - if(mode == PrintAst) { - type_set_output(out); - ast_set_output(out); - print_ast(unit); - return 0; - } - if(mode == PrintFluffy) { - type_set_output(out); - ast_set_output(out); - write_fluffy_decls(out, unit); + int result = compilation_loop(mode, units, standard, out); + if (stat_ev_enabled) { + stat_ev_end(); } - translation_unit_to_firm(unit); - - if(mode == ParseOnly) { - return 0; + if (result != EXIT_SUCCESS) { + if (out != stdout) + unlink(outname); + return result; } - FILE *asm_out; - char asm_tempfile[1024]; - if(mode == CompileDump) { - asm_out = NULL; - firm_be_opt.selection = BE_NONE; - } else if(mode == Compile) { - asm_out = out; - } else { - asm_out - = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "cc", ".s"); - } - gen_firm_finish(asm_out, input, /*c_mode=*/1, /*firm_const_exists=*/0); - - if(mode == CompileDump) { - /* find irg */ - ident *id = new_id_from_str(dumpfunction); - ir_graph *irg = NULL; - int n_irgs = get_irp_n_irgs(); - for(int i = 0; i < n_irgs; ++i) { - ir_graph *tirg = get_irp_irg(i); - ident *irg_id = get_entity_ident(get_irg_entity(tirg)); - if(irg_id == id) { - irg = tirg; - break; - } - } - - if(irg == NULL) { - fprintf(stderr, "No graph for function '%s' found\n", dumpfunction); - return 1; - } - - dump_ir_block_graph_file(irg, out); - fclose(out); - return 0; - } - - fclose(asm_out); - - /* assemble assembler and create object file */ - char obj_tfile[1024]; - if(mode == CompileAssemble || mode == CompileAssembleLink) { - const char *obj_outfile; - if(mode == CompileAssemble) { - fclose(out); - obj_outfile = outname; - } else { - FILE *tempf - = make_temp_file(obj_tfile, sizeof(obj_tfile), "cc", ".o"); - fclose(tempf); - obj_outfile = obj_tfile; + /* link program file */ + if (mode == CompileAssembleLink) { + int const link_result = link_program(units); + if (link_result != EXIT_SUCCESS) { + if (out != stdout) + unlink(outname); + return link_result; } - - assemble(obj_outfile, asm_tempfile); } - /* link object file */ - if(mode == CompileAssembleLink) { - do_link(outname, obj_tfile); - } + if (do_timing) + timer_term(print_timing ? stderr : NULL); + free_temp_files(); obstack_free(&cppflags_obst, NULL); + obstack_free(&ldflags_obst, NULL); + obstack_free(&asflags_obst, NULL); + obstack_free(&file_obst, NULL); + gen_firm_finish(); + exit_mangle(); exit_ast2firm(); exit_parser(); exit_ast(); - exit_lexer(); + exit_preprocessor(); exit_typehash(); exit_types(); exit_tokens(); exit_symbol_table(); - return 0; + return EXIT_SUCCESS; }