X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=65ec2981f87a9ae4f1164afae843f5273ab8b23a;hb=0398c22778ba28be93a68f69a54124fd95826403;hp=9a688b84582961408681bb76092a48f8b233a8ed;hpb=f928976aed1725d96a398dededac5eddcbe7870d;p=cparser diff --git a/main.c b/main.c index 9a688b8..65ec298 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 @@ -86,7 +105,7 @@ bool strict_mode = false; /* to switch on printing of implicit casts */ extern bool print_implicit_casts; -/* to switch on printing of srenthesis to indicate operator precedence */ +/* to switch on printing of parenthesis to indicate operator precedence */ extern bool print_parenthesis; static int verbose; @@ -147,9 +166,9 @@ 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) +static translation_unit_t *do_parsing(FILE *const in, const char *const input_name) { - lexer_open_stream(in, input); + lexer_open_stream(in, input_name); translation_unit_t *unit = parse(); return unit; } @@ -165,9 +184,10 @@ static void lextest(FILE *in, const char *fname) } while(lexer_token.type != T_EOF); } -static FILE* preprocess(FILE* in, const char *fname) +static FILE *preprocess(FILE *in, const char *fname) { char buf[4096]; + obstack_1grow(&cppflags_obst, '\0'); const char *flags = obstack_finish(&cppflags_obst); if(in != stdin) { @@ -180,8 +200,8 @@ static FILE* preprocess(FILE* in, const char *fname) if(verbose) { puts(buf); } - FILE* f = popen(buf, "r"); - if (f == NULL) { + FILE *f = popen(buf, "r"); + if(f == NULL) { fprintf(stderr, "invoking preprocessor failed\n"); exit(1); } @@ -191,6 +211,7 @@ static FILE* preprocess(FILE* in, const char *fname) static void do_link(const char *out, const char *in) { char buf[4096]; + obstack_1grow(&ldflags_obst, '\0'); const char *flags = obstack_finish(&ldflags_obst); snprintf(buf, sizeof(buf), LINKER " %s -o %s %s", flags, out, in); @@ -340,6 +361,8 @@ int main(int argc, char **argv) const char *outname = NULL; const char *dumpfunction = NULL; compile_mode_t mode = CompileAssembleLink; + int opt_level = 1; + int result = EXIT_SUCCESS; obstack_init(&cppflags_obst); obstack_init(&ldflags_obst); @@ -363,6 +386,42 @@ int main(int argc, char **argv) #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0') + /* early options parsing (find out optimisation level) */ + for(int i = 1; i < argc; ++i) { + const char *arg = argv[i]; + 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: + firm_option("no-opt"); + break; + case 1: + firm_option("no-inline"); + break; + default: + case 4: + firm_option("strict-aliasing"); + /* fallthrough */ + case 3: + firm_option("cond-eval"); + firm_option("if-conv"); + /* fallthrough */ + case 2: + firm_option("inline"); + firm_option("deconv"); + firm_be_option("omitfp"); + break; + } + + /* parse rest of options */ bool help_displayed = false; bool argument_errors = false; for(int i = 1; i < argc; ++i) { @@ -372,10 +431,16 @@ int main(int argc, char **argv) const char *option = &arg[1]; if(option[0] == 'o') { GET_ARG_AFTER(outname, "-o"); + } else if(option[0] == 'g') { + firm_be_option("stabs=yes"); + firm_be_option("omitfp=no"); + firm_be_option("ia32-nooptcc=yes"); } else if(SINGLE_OPTION('c')) { mode = CompileAssemble; } 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"); @@ -458,10 +523,17 @@ int main(int argc, char **argv) } } else if(strcmp(option, "pedantic") == 0) { fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); - } else if(option[0] == 'O' || - option[0] == 'g' || - strncmp(option, "std=", 4) == 0) { - fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); + } else if(strncmp(option, "std=", 4) == 0) { + if(strcmp(&option[4], "c99") == 0) { + c_mode = _C89|_C99; + } else if(strcmp(&option[4], "c89") == 0) { + c_mode = _C89; + } else if(strcmp(&option[4], "gnu99") == 0) { + c_mode = _C89|_C99|_GNUC; + } else if(strcmp(&option[4], "microsoft") == 0) { + c_mode = _C89|_C99|_MS; + } else + fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); } else if (option[0] == '-') { /* double dash option */ ++option; @@ -494,7 +566,8 @@ int main(int argc, char **argv) } else if(strcmp(option, "version") == 0) { firm_version_t ver; firm_get_version(&ver); - printf("cparser (%d.%d %s) using libFirm (%u.%u", 0, 1, cparser_REVISION, ver.major, ver.minor); + printf("cparser (%s) using libFirm (%u.%u", + cparser_REVISION, ver.major, ver.minor); if(ver.revision[0] != 0) { putchar(' '); fputs(ver.revision, stdout); @@ -582,7 +655,11 @@ int main(int argc, char **argv) outname = outnamebuf; break; case CompileAssembleLink: +#ifdef _WIN32 + outname = "a.exe"; +#else outname = "a.out"; +#endif break; } } @@ -623,29 +700,35 @@ int main(int argc, char **argv) FILE *preprocessed_in = preprocess(in, input); translation_unit_t *const unit = do_parsing(preprocessed_in, input); - int result = pclose(preprocessed_in); - if(result != 0) { - return result; + int res = pclose(preprocessed_in); + if(res != 0) { + return res; } - if(unit == NULL) { + + if(error_count > 0) { /* parsing failed because of errors */ fprintf(stderr, "%u error(s), %u warning(s)\n", error_count, warning_count); - return EXIT_FAILURE; - } - if (warning_count > 0) { + result = EXIT_FAILURE; + } else if(warning_count > 0) { fprintf(stderr, "%u warning(s)\n", warning_count); } if(mode == BenchmarkParser) { - return 0; + return result; } + /* prints the AST even if errors occurred */ if(mode == PrintAst) { type_set_output(out); ast_set_output(out); print_ast(unit); - return 0; + return result; } + + /* cannot handle other modes with errors */ + if(result != EXIT_SUCCESS) + return result; + if(mode == PrintFluffy) { type_set_output(out); ast_set_output(out);