X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=2497541ca6e0648e93bdfbb0dcaafa935c73c7f1;hb=9d562f8239c1c0232c7254f53b78e2b74325e1a7;hp=8ff4c0623798f630123f93130f85a2ed284996b0;hpb=34b3a147bf445fa2744f3fa1ad64b4f742078aad;p=cparser diff --git a/main.c b/main.c index 8ff4c06..2497541 100644 --- a/main.c +++ b/main.c @@ -1,3 +1,22 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2008 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 @@ -7,9 +26,36 @@ #include #include #include -#include #include +#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) + +#else +#include +#define HAVE_MKSTEMP +#endif + #ifndef WITH_LIBCORE #define WITH_LIBCORE #endif @@ -19,88 +65,108 @@ #include "lexer.h" #include "token_t.h" +#include "types.h" #include "type_hash.h" #include "parser.h" #include "ast2firm.h" +#include "diagnostic.h" +#include "lang_features.h" +#include "driver/firm_opt.h" +#include "driver/firm_cmdline.h" #include "adt/error.h" #include "write_fluffy.h" +#include "write_caml.h" +#include "revision.h" +#include "warning.h" #ifndef PREPROCESSOR -#define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int" +#ifdef __APPLE__ +#define PREPROCESSOR "gcc -E -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int -U__SIZE_TYPE__ -D__SIZE_TYPE__=unsigned\\ long -m32 -U__STRICT_ANSI__" +#else +#define PREPROCESSOR "cpp -std=c99 -U__WCHAR_TYPE__ -D__WCHAR_TYPE__=int -U__SIZE_TYPE__ -D__SIZE_TYPE__=unsigned\\ long -m32 -U__STRICT_ANSI__" +#endif #endif #ifndef LINKER -#define LINKER "gcc" +#define LINKER "gcc -m32" #endif #ifndef ASSEMBLER -#define ASSEMBLER "as" +#ifdef __APPLE__ +#define ASSEMBLER "gcc -c -xassembler" +#else +#define ASSEMBLER "as --32" +#endif #endif -#ifdef _WIN32 -/* remap some names */ -#define popen(cmd, mode) _popen(cmd, mode) -#define pclose(file) _pclose(file) -#endif /* _WIN32 */ +/** The current c mode/dialect. */ +unsigned int c_mode = _C89|_C99|_GNUC; -static int verbose; -static bool do_dump; +/** The 'machine size', 16, 32 or 64 bit, 32bit is the default. */ +unsigned int machine_size = 32; -static const ir_settings_if_conv_t *if_conv_info = NULL; -static const backend_params *be_params = NULL; +/** true if the char type is signed. */ +bool char_is_signed = true; -static void initialize_firm(void) +/** true for strict language checking. */ +bool strict_mode = false; + +/** use builtins for some libc functions */ +bool use_builtins = false; + +/* to switch on printing of implicit casts */ +extern bool print_implicit_casts; + +/* to switch on printing of parenthesis to indicate operator precedence */ +extern bool print_parenthesis; + +static int verbose; +static struct obstack cppflags_obst, ldflags_obst; +static char dep_target[1024]; +static const char *outname; + +typedef struct file_list_entry_t file_list_entry_t; + +typedef enum filetype_t { + FILETYPE_AUTODETECT, + FILETYPE_C, + FILETYPE_PREPROCESSED_C, + FILETYPE_ASSEMBLER, + FILETYPE_PREPROCESSED_ASSEMBLER, + FILETYPE_OBJECT, + FILETYPE_UNKNOWN +} filetype_t; + +struct file_list_entry_t { + const char *name; /**< filename or NULL for stdin */ + filetype_t type; + file_list_entry_t *next; +}; + +#if defined(_DEBUG) || defined(FIRM_DEBUG) +/** + * Debug printf implementation. + * + * @param fmt printf style format parameter + */ +void dbg_printf(const char *fmt, ...) { - be_opt_register(); - firm_init_options(NULL, 0, NULL); - - firm_parameter_t params; - memset(¶ms, 0, sizeof(params)); - - params.size = sizeof(params); - params.enable_statistics = 0; - params.initialize_local_func = uninitialized_local_var; - params.cc_mask = 0; - params.builtin_dbg = NULL; - - /* initialize backend */ - be_params = be_init(); - ir_set_debug_retrieve(retrieve_dbg); - params.arch_op_settings = be_params->arch_op_settings; - if_conv_info = be_params->if_conv_info; - - (void) if_conv_info; /* avoid unused warning */ - - /* intialize firm itself */ - init_firm(¶ms); - dbg_init(NULL, NULL, dbg_snprint); - - 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_dyn_meth_dispatch(1); - set_opt_normalize(1); - set_opt_precise_exc_context(0); - set_opt_strength_red(0); - set_opt_fragile_ops(0); - 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); + va_list list; - dump_consts_local(1); - dump_keepalive_edges(1); + if (firm_dump.debug_print) { + va_start(list, fmt); + vprintf(fmt, list); + va_end(list); + } /* if */ } +#endif /* defined(_DEBUG) || defined(FIRM_DEBUG) */ -static void dump(ir_graph *irg, const char *suffix) +static void initialize_firm(void) { - if(do_dump) { - dump_ir_block_graph(irg, suffix); - } + firm_early_init(); + + dump_consts_local(1); + dump_keepalive_edges(1); } static void get_output_name(char *buf, size_t buflen, const char *inputname, @@ -132,10 +198,21 @@ static void get_output_name(char *buf, size_t buflen, const char *inputname, memcpy(buf+last_dot, newext, extlen); } -static translation_unit_t *do_parsing(FILE *const in, const char *const input) +#include "builtins.h" + +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(); + + if (use_builtins) { + lexer_open_buffer(builtins, sizeof(builtins)-1, ""); + parse(); + } + + lexer_open_stream(in, input_name); + parse(); + + translation_unit_t *unit = finish_parsing(); return unit; } @@ -150,46 +227,72 @@ static void lextest(FILE *in, const char *fname) } while(lexer_token.type != T_EOF); } -static void emit(FILE *out, const char *input_name) +static void add_flag(struct obstack *obst, const char *format, ...) { - be_main(out, input_name); -} + va_list ap; + va_start(ap, format); -static FILE* preprocess(FILE* in, const char *fname) -{ char buf[4096]; - - if(in != stdin) { - snprintf(buf, sizeof(buf), PREPROCESSOR " %s", fname); - } else { - /* read from stdin */ - snprintf(buf, sizeof(buf), PREPROCESSOR " -"); + vsnprintf(buf, sizeof(buf), format, ap); + + /* escape stuff... */ + obstack_1grow(obst, ' '); + for (char *c = buf; *c != '\0'; ++c) { + switch(*c) { + case '"': + case '\'': + case '`': + case ' ': + case '\t': + case '\n': + case '\r': + case '\\': + case '$': + case '(': + case ')': + obstack_1grow(obst, '\\'); + /* fallthrough */ + default: + obstack_1grow(obst, *c); + break; + } } - if(verbose) { - puts(buf); - } - FILE* f = popen(buf, "r"); - if (f == NULL) { - fprintf(stderr, "invoking preprocessor failed\n"); - exit(1); - } - return f; + va_end(ap); } -static void do_link(const char *out, const char *in) +static FILE *preprocess(const char *fname) { - char buf[4096]; + obstack_1grow(&cppflags_obst, '\0'); + const char *flags = obstack_finish(&cppflags_obst); + + obstack_printf(&cppflags_obst, "%s", PREPROCESSOR); + if (dep_target[0] != '\0') { + add_flag(&cppflags_obst, "-MF"); + add_flag(&cppflags_obst, "%s", dep_target); + if (outname != NULL) { + add_flag(&cppflags_obst, "-MQ"); + add_flag(&cppflags_obst, "%s", outname); + } + } + if (flags[0] != '\0') { + obstack_printf(&cppflags_obst, " %s", flags); + } + add_flag(&cppflags_obst, "%s", fname); - snprintf(buf, sizeof(buf), "%s %s -o %s", LINKER, in, out); + obstack_1grow(&cppflags_obst, '\0'); + const char *buf = obstack_finish(&cppflags_obst); if(verbose) { puts(buf); } - int err = system(buf); - if(err != 0) { - fprintf(stderr, "linker reported an error\n"); + + FILE *f = popen(buf, "r"); + if(f == NULL) { + fprintf(stderr, "invoking preprocessor failed\n"); exit(1); } + + return f; } static void assemble(const char *out, const char *in) @@ -249,20 +352,24 @@ static const char *get_tempdir(void) return tmpdir; } +#ifndef HAVE_MKSTEMP +/* cheap and nasty mkstemp replacement */ +static int mkstemp(char *templ) +{ + mktemp(templ); + return open(templ, O_RDWR|O_CREAT|O_EXCL|O_BINARY, 0600); +} +#endif + /** - * an own version of tmpnam, which: writes in a buffer, appends a user specified - * suffix, emits no warnings during linking (like glibc/gnu ld do for tmpnam)... + * 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 *suffix) +static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix) { 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); + snprintf(buffer, buflen, "%s/%sXXXXXX", tempdir, prefix); int fd = mkstemp(buffer); if(fd == -1) { @@ -279,18 +386,11 @@ static FILE *make_temp_file(char *buffer, size_t buflen, return out; } -static void create_firm_prog(translation_unit_t *unit) +/** + * Do the necessary lowering for compound parameters. + */ +void lower_compound_params(void) { - translation_unit_to_firm(unit); - - //dump_globals_as_text(dump_verbosity_max, "-globals"); - - int n_irgs = get_irp_n_irgs(); - for(int i = 0; i < n_irgs; ++i) { - ir_graph *const irg = get_irp_irg(i); - dump(irg, "-start"); - } - lower_params_t params; params.def_ptr_alignment = 4; @@ -299,65 +399,20 @@ static void create_firm_prog(translation_unit_t *unit) params.find_pointer_type = NULL; params.ret_compound_in_regs = NULL; lower_calls_with_compounds(¶ms); - - lower_highlevel(); - - for(int i = 0; i < n_irgs; ++i) { - ir_graph *const irg = get_irp_irg(i); - dump(irg, "-lower"); - } -} - -static void optimize(void) -{ - int arr_len; - ir_entity **keep_methods; - - cgana(&arr_len, &keep_methods); - gc_irgs(arr_len, keep_methods); - free(keep_methods); - - optimize_funccalls(0); - - lwrdw_param_t lwrdw_param = { - 1, - 1, - mode_Ls, mode_Lu, - mode_Is, mode_Iu, - def_create_intrinsic_fkt, - NULL - }; - if (be_params->arch_create_intrinsic_fkt) { - lwrdw_param.create_intrinsic = be_params->arch_create_intrinsic_fkt; - lwrdw_param.ctx = be_params->create_intrinsic_ctx; - } - - for(int i = 0; i < get_irp_n_irgs(); ++i) { - ir_graph *irg = get_irp_irg(i); - - optimize_graph_df(irg); - dump(irg, "-01-localopt"); - place_code(irg); - dump(irg, "-02-place"); - optimize_cf(irg); - dump(irg, "-03-cf"); - lower_dw_ops(&lwrdw_param); - dump(irg, "-04-dw"); - optimize_graph_df(irg); - dump(irg, "-05-localopt"); - optimize_cf(irg); - dump(irg, "-06-cf"); - } } typedef enum compile_mode_t { + BenchmarkParser, + PreprocessOnly, + ParseOnly, Compile, CompileDump, CompileAssemble, CompileAssembleLink, LexTest, PrintAst, - PrintFluffy + PrintFluffy, + PrintCaml } compile_mode_t; static void usage(const char *argv0) @@ -365,124 +420,561 @@ static void usage(const char *argv0) fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0); } +static void print_cparser_version(void) { + firm_version_t ver; + firm_get_version(&ver); + + printf("cparser (%s) using libFirm (%u.%u", + 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"); +} + +static void set_be_option(const char *arg) +{ + int res = firm_be_option(arg); + (void) res; + assert(res); +} + +static void set_option(const char *arg) +{ + int res = firm_option(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("couldn't write output"); + } + } +} + +static inline bool streq(char const* a, char const* b) +{ + return strcmp(a, b) == 0; +} + +static inline bool strstart(char const* str, char const* start) +{ + do { + if (*start == '\0') + return true; + } while (*str++ == *start++); + return false; +} + +static FILE *open_file(const char *filename) +{ + if (streq(filename, "-")) { + return stdin; + } + + FILE *in = fopen(filename, "r"); + if(in == NULL) { + fprintf(stderr, "Couldn't open '%s': %s\n", filename, + strerror(errno)); + exit(1); + } + + 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, "assembler")) + return FILETYPE_PREPROCESSED_ASSEMBLER; + if (streq(string, "assembler-with-cpp")) + return FILETYPE_ASSEMBLER; + if (streq(string, "none")) + return FILETYPE_AUTODETECT; + + return FILETYPE_UNKNOWN; +} + int main(int argc, char **argv) { initialize_firm(); - init_symbol_table(); - init_tokens(); - init_types(); - init_typehash(); - init_lexer(); - init_ast(); - init_parser(); - init_ast2firm(); + const char *dumpfunction = 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; + struct obstack file_obst; + + obstack_init(&cppflags_obst); + obstack_init(&ldflags_obst); + obstack_init(&file_obst); + +#define GET_ARG_AFTER(def, args) \ + def = &arg[sizeof(args)-1]; \ + if(def[0] == '\0') { \ + ++i; \ + if(i >= argc) { \ + fprintf(stderr, "error: expected argument after '" args "'\n"); \ + argument_errors = true; \ + break; \ + } \ + def = argv[i]; \ + if(def[0] == '-' && def[1] != '\0') { \ + fprintf(stderr, "error: expected argument after '" args "'\n"); \ + argument_errors = true; \ + continue; \ + } \ + } - const char *input = NULL; - const char *outname = NULL; - const char *dumpfunction = NULL; - compile_mode_t mode = CompileAssembleLink; +#define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0') + /* early options parsing (find out optimisation level) */ 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; - } - 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, "--dump") == 0) { - do_dump = true; - } else if(strcmp(arg, "--dump-function") == 0) { - ++i; - if(i >= argc) { - usage(argv[0]); - return 1; - } - dumpfunction = argv[i]; - mode = CompileDump; - } else if(strcmp(arg, "-v") == 0) { - verbose = 1; - } else if(arg[0] == '-' && arg[1] == 'f') { - const char *opt = &arg[2]; - if(opt[0] == 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); + } + } + + /* apply optimisation level */ + switch(opt_level) { + case 0: + set_option("no-opt"); + break; + case 1: + set_option("no-inline"); + break; + default: + case 4: + set_option("strict-aliasing"); + /* fallthrough */ + case 3: + set_option("cond-eval"); + set_option("if-conv"); + use_builtins = true; + /* fallthrough */ + case 2: + set_option("inline"); + set_option("deconv"); + set_be_option("omitfp"); + break; + } + +#ifdef __APPLE__ + /* Darwin expects the stack to be aligned to 16byte boundary */ + firm_be_option("ia32-stackalign=4"); +#endif + + /* parse rest of options */ + filetype_t forced_filetype = FILETYPE_AUTODETECT; + bool help_displayed = false; + bool argument_errors = false; + for(int i = 1; i < argc; ++i) { + 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')) { + 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')) { + inhibit_all_warnings = true; + } 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; } - opt = argv[i]; - if(opt[0] == '-') { - usage(argv[0]); - return 1; + } 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, "pipe")) { + /* here for gcc compatibility */ + } else if (option[0] == 'f') { + char const *orig_opt; + GET_ARG_AFTER(orig_opt, "-f"); + + if (strstart(orig_opt, "align-loops=") || + strstart(orig_opt, "align-jumps=") || + strstart(orig_opt, "align-functions=")) { + fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); + } else { + 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, "dollars-in-identifiers")) { + allow_dollar_in_symbol = truth_value; + } else if (streq(opt, "short-wchar")) { + opt_short_wchar_t = truth_value; + } else if (streq(opt, "syntax-only")) { + mode = truth_value ? ParseOnly : CompileAssembleLink; + } else if (streq(opt, "omit-frame-pointer")) { + set_be_option(truth_value ? "omitfp" : "omitfp=no"); + } else if (streq(opt, "strength-reduce")) { + firm_option(truth_value ? "strength-red" : "no-strength-red"); + } else if (streq(opt, "fast-math") || + streq(opt, "jump-tables") || + streq(opt, "unroll-loops") || + streq(opt, "expensive-optimizations") || + streq(opt, "common") || + streq(opt, "PIC") || + streq(opt, "align-loops") || + streq(opt, "align-jumps") || + streq(opt, "align-functions")) { + 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 (res == -1) { + help_displayed = true; + } + } } - } - //firm_option(opt); - } else if(arg[0] == '-' && arg[1] == 'b') { - const char *opt = &arg[2]; - if(opt[0] == 0) { - ++i; - if(i >= argc) { - usage(argv[0]); - return 1; + } else if (option[0] == 'b') { + const char *opt; + GET_ARG_AFTER(opt, "-b"); + int res = firm_be_option(opt); + if (res == 0) { + fprintf(stderr, "error: unknown Firm backend option '-b %s'\n", + opt); + argument_errors = true; + } else if (res == -1) { + help_displayed = true; + } else if (strstart(opt, "isa=")) { + strncpy(cpu_arch, opt, sizeof(cpu_arch)); } - opt = argv[i]; - if(opt[0] == '-') { - usage(argv[0]); - return 1; + } else if (option[0] == 'W') { + if (strstart(option + 1, "l,")) // a gcc-style linker option + { + const char *opt; + GET_ARG_AFTER(opt, "-Wl,"); + add_flag(&ldflags_obst, "-Wl,%s", opt); + } + 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, "arch=")) { + GET_ARG_AFTER(opt, "-march="); + snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt); + int res = firm_be_option(arch_opt); + if (res == 0) + argument_errors = true; + else { + snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); + int res = firm_be_option(arch_opt); + if (res == 0) + argument_errors = true; + } + } else if (strstart(opt, "tune=")) { + GET_ARG_AFTER(opt, "-mtune="); + snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); + int res = firm_be_option(arch_opt); + if (res == 0) + argument_errors = true; + } else if (strstart(opt, "cpu=")) { + GET_ARG_AFTER(opt, "-mcpu="); + snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt); + int res = firm_be_option(arch_opt); + 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 -mfpumath 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 = firm_be_option(arch_opt); + if (res == 0) + argument_errors = true; + } + } else if (strstart(opt, "preferred-stack-boundary=")) { + GET_ARG_AFTER(opt, "-mpreferred-stack-boundary="); + snprintf(arch_opt, sizeof(arch_opt), "%s-stackalign=%s", cpu_arch, opt); + int res = firm_be_option(arch_opt); + if (res == 0) + argument_errors = true; + } else if (streq(opt, "omit-leaf-frame-pointer")) { + set_be_option("omitleaffp=1"); + } else if (streq(opt, "no-omit-leaf-frame-pointer")) { + set_be_option("omitleaffp=0"); + } else { + 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 (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 (streq(option, "shared")) { + add_flag(&ldflags_obst, "-shared"); + } else if (strstart(option, "std=")) { + if (streq(&option[4], "c99")) { + c_mode = _C89|_C99; + } else if (streq(&option[4], "c89")) { + c_mode = _C89; + } else if (streq(&option[4], "gnu99")) { + c_mode = _C89|_C99|_GNUC; + } else if (streq(&option[4], "microsoft")) { + c_mode = _C89|_C99|_MS; + } else + fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); + } else if (streq(option, "version")) { + print_cparser_version(); + } else if (option[0] == '-') { + /* double dash option */ + ++option; + if (streq(option, "gcc")) { + c_mode |= _GNUC; + } else if (streq(option, "no-gcc")) { + c_mode &= ~_GNUC; + } else if (streq(option, "ms")) { + c_mode |= _MS; + } else if (streq(option, "no-ms")) { + c_mode &= ~_MS; + } else if (streq(option, "signed-chars")) { + char_is_signed = true; + } else if (streq(option, "unsigned-chars")) { + char_is_signed = false; + } 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-caml")) { + mode = PrintCaml; + } else if (streq(option, "version")) { + print_cparser_version(); + exit(EXIT_SUCCESS); + } 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 { + fprintf(stderr, "error: unknown argument '%s'\n", arg); + argument_errors = true; } - } - //be_parse_arg(opt); - } else if(arg[0] == '-') { - if (arg[1] == '\0') { - input = "-"; - } else if (arg[1] == 'D' || - arg[1] == 'O' || - arg[1] == 'f' || - arg[1] == 'W' || - arg[1] == 'g' || - strncmp(arg + 1, "std=", 4) == 0) { - fprintf(stderr, "Warning: Ignoring option '%s'\n", arg); } else { - usage(argv[0]); - return 1; + fprintf(stderr, "error: unknown argument '%s'\n", arg); + argument_errors = true; } } else { - if(input != NULL) { - fprintf(stderr, "Error: multiple input files specified\n"); - usage(argv[0]); - return 1; + filetype_t type = forced_filetype; + const char *filename = arg; + if (type == FILETYPE_AUTODETECT) { + size_t const len = strlen(arg); + if (len < 2 && arg[0] == '-') { + /* - implicitly means C source file */ + type = FILETYPE_C; + filename = NULL; + } else if (len > 2 && arg[len - 2] == '.') { + switch (arg[len - 1]) { + case 'c': type = FILETYPE_C; break; + case 'h': type = FILETYPE_C; break; + case 's': type = FILETYPE_PREPROCESSED_ASSEMBLER; break; + case 'S': type = FILETYPE_ASSEMBLER; break; + + case 'a': + case 'o': type = FILETYPE_OBJECT; break; + } + } else if (len > 3 && arg[len - 3] == '.') { + if (streq(arg + len - 2, "so")) { + type = FILETYPE_OBJECT; + } + } + + if (type == FILETYPE_AUTODETECT) { + fprintf(stderr, "'%s': file format not recognized\n", arg); + continue; + } + } + + 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; } } - FILE *out; - char outnamebuf[4096]; - if(outname == NULL) { + if (files == NULL) { + fprintf(stderr, "error: no input files specified\n"); + argument_errors = true; + } + + if (help_displayed) { + return !argument_errors; + } + if (argument_errors) { + usage(argv[0]); + return 1; + } + + /* we do the lowering in ast2firm */ + firm_opt.lower_bitfields = FALSE; + + gen_firm_init(); + init_symbol_table(); + init_tokens(); + init_types(); + init_typehash(); + init_basic_types(); + init_lexer(); + init_ast(); + init_parser(); + init_ast2firm(); + + 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"); + } + } else { + dep_target[0] = '\0'; + } + + char outnamebuf[4096]; + if (outname == NULL) { + const char *filename = files->name; + switch(mode) { + case BenchmarkParser: case PrintAst: case PrintFluffy: + case PrintCaml: case LexTest: + case PreprocessOnly: + outname = "-"; + break; + case ParseOnly: 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: @@ -491,120 +983,241 @@ int main(int argc, char **argv) outname = outnamebuf; break; case CompileAssembleLink: +#ifdef _WIN32 + outname = "a.exe"; +#else outname = "a.out"; +#endif break; } - assert(outname != NULL); } - if(strcmp(outname, "-") == 0) { + assert(outname != NULL); + + FILE *out; + if (streq(outname, "-")) { out = stdout; } else { out = fopen(outname, "w"); if(out == NULL) { fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname, - strerror(errno)); + strerror(errno)); return 1; } } - FILE *in; - if(input == NULL) { - fprintf(stderr, "%s: no input files\n", argv[0]); - return 1; - } else if(strcmp(input, "-") == 0) { - in = stdin; - input = ""; - } else { - in = fopen(input, "r"); - if(in == NULL) { - fprintf(stderr, "Couldn't open '%s': %s\n", input, strerror(errno)); - return 1; + file_list_entry_t *file; + for (file = files; file != NULL; file = file->next) { + char asm_tempfile[1024]; + const char *filename = file->name; + filetype_t filetype = file->type; + + if (file->type == FILETYPE_OBJECT) + continue; + + FILE *in = NULL; + if (mode == LexTest) { + if (in == NULL) + in = open_file(filename); + lextest(in, filename); + fclose(in); + exit(EXIT_SUCCESS); } - } - if(mode == LexTest) { - lextest(in, input); - fclose(in); - return 0; - } + FILE *preprocessed_in = NULL; + if (filetype == FILETYPE_C || filetype == FILETYPE_ASSEMBLER) { + /* no support for input on FILE* yet */ + if (in != NULL) + panic("internal compiler error: in for preprocessor != NULL"); + + preprocessed_in = preprocess(filename); + if (mode == PreprocessOnly) { + copy_file(out, preprocessed_in); + int result = pclose(preprocessed_in); + fclose(out); + return result; + } - 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 (filetype == FILETYPE_C) { + filetype = FILETYPE_PREPROCESSED_C; + } else if (filetype == FILETYPE_ASSEMBLER) { + filetype = FILETYPE_PREPROCESSED_ASSEMBLER; + } else { + panic("internal compiler error: unknown filetype at preproc"); + } - if(mode == PrintAst) { - ast_set_output(out); - print_ast(unit); - return 0; - } - if(mode == PrintFluffy) { - write_fluffy_decls(out, unit); - } + in = preprocessed_in; + } - create_firm_prog(unit); - optimize(); - - 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; - } + FILE *asm_out; + if(mode == Compile) { + asm_out = out; + } else { + asm_out = make_temp_file(asm_tempfile, sizeof(asm_tempfile), + "ccs"); } - if(irg == NULL) { - fprintf(stderr, "No graph for function '%s' found\n", dumpfunction); - return 1; + if (in == NULL) + in = open_file(filename); + + /* preprocess and compile */ + if (filetype == FILETYPE_PREPROCESSED_C) { + translation_unit_t *const unit = do_parsing(in, filename); + if (in == preprocessed_in) { + int pp_result = pclose(preprocessed_in); + if (pp_result != EXIT_SUCCESS) { + exit(EXIT_FAILURE); + } + } + + /* prints the AST even if errors occurred */ + if (mode == PrintAst) { + type_set_output(out); + ast_set_output(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(mode == BenchmarkParser) { + return result; + } else if(mode == PrintFluffy) { + write_fluffy_decls(out, unit); + continue; + } else if (mode == PrintCaml) { + write_caml_decls(out, unit); + continue; + } + + translation_unit_to_firm(unit); + + 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); + exit(1); + } + + dump_ir_block_graph_file(irg, out); + fclose(out); + exit(0); + } + + gen_firm_finish(asm_out, filename, /*c_mode=*/1, + /*firm_const_exists=*/0); + if (asm_out != out) { + fclose(asm_out); + } + + } 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) { + return pp_result; + } + } + if(asm_out != out) { + fclose(asm_out); + } } - dump_ir_block_graph_file(irg, out); - fclose(out); - return 0; - } + if (mode == Compile) + continue; - /* generate code and emit assembler */ - FILE *asm_out; - char asm_tempfile[1024]; - if(mode == Compile) { - asm_out = out; - } else { - asm_out - = make_temp_file(asm_tempfile, sizeof(asm_tempfile), "cc", ".s"); - } - emit(asm_out, input); - 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; + /* 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); + + size_t len = strlen(filename_o) + 1; + filename = obstack_copy(&file_obst, filename_o, len); + filetype = FILETYPE_OBJECT; } - assemble(obj_outfile, asm_tempfile); + /* ok we're done here, process next file */ + file->name = filename; + file->type = filetype; } - /* link object file */ + if (result != EXIT_SUCCESS) + return result; + + /* link program file */ if(mode == CompileAssembleLink) { - do_link(outname, obj_tfile); + obstack_1grow(&ldflags_obst, '\0'); + const char *flags = obstack_finish(&ldflags_obst); + + /* construct commandline */ + 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"); + exit(1); + } } + obstack_free(&cppflags_obst, NULL); + obstack_free(&ldflags_obst, NULL); + obstack_free(&file_obst, NULL); + exit_ast2firm(); exit_parser(); exit_ast();