X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=bc6a23306f0d08be77c87b5027fd1bf8067c0b97;hb=ebb77232f9baed801f3a073741ff7a023acea485;hp=9d42e52dfc44a5d64461fc827270a45b9320d22c;hpb=c3442f6bac66e26a14ed12e2344946e517d5ce1c;p=cparser diff --git a/main.c b/main.c index 9d42e52..bc6a233 100644 --- a/main.c +++ b/main.c @@ -70,7 +70,6 @@ #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" @@ -79,6 +78,7 @@ #include "wrappergen/write_jna.h" #include "revision.h" #include "warning.h" +#include "help.h" #include "mangle.h" #include "printer.h" @@ -103,21 +103,15 @@ unsigned int machine_size = 32; bool byte_order_big_endian = false; bool char_is_signed = true; bool strict_mode = false; -bool use_builtins = false; atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT; -unsigned force_long_double_size = 0; +unsigned long_double_size = 0; bool enable_main_collect2_hack = false; bool freestanding = false; -/* to switch on printing of implicit casts */ -extern bool print_implicit_casts; - -/* to switch on printing of parenthesis to indicate operator precedence */ -extern bool print_parenthesis; - static machine_triple_t *target_machine; static const char *target_triple; static int verbose; +static bool use_builtins; static struct obstack cppflags_obst; static struct obstack ldflags_obst; static struct obstack asflags_obst; @@ -559,13 +553,205 @@ static void print_cparser_version(void) "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"); } -static void print_help(const char *argv0) +static void print_help_basic(const char *argv0) { usage(argv0); puts(""); - puts("\t-fhelp Display help about firm optimisation options"); - puts("\t-bhelp Display help about firm backend options"); - puts("A big number of gcc flags is also supported"); + put_help("--help", "Display this information"); + put_help("--version", "Display compiler version"); + put_help("--help-parser", "Display information about parser options"); + put_help("--help-warnings", "Display information about warning options"); + put_help("--help-codegen", "Display information about code-generation options"); + put_help("--help-optimization", "Display information about optimization options"); + put_help("--help-linker", "Display information about linker options"); + put_help("--help-language-tools", "Display information about language tools options"); + put_help("--help-debug", "Display information about compiler debugging options"); + put_help("--help-firm", "Display information about direct firm options"); + put_help("--help-all", "Display information about all options"); + put_help("-c", "Compile and assemble but do not link"); + put_help("-E", "Preprocess only"); + put_help("-S", "Compile but do not assembler or link"); + put_help("-o", "Specify output file"); + put_help("-v", "Verbose output (show invocation of sub-processes)"); + put_help("-x", "Force input language:"); + put_choice("c", "C"); + put_choice("c++", "C++"); + put_choice("assembler", "Assembler (no preprocessing)"); + put_choice("assembler-with-cpp", "Assembler with preprocessing"); + put_choice("none", "Autodetection"); + put_help("-pipe", "ignored (gcc compatibility)"); +} + +static void print_help_preprocessor(void) +{ + put_help("-nostdinc", "Do not search standard system include directories"); + put_help("-trigraphs", "Support ISO C trigraphs"); + put_help("-isystem", ""); + put_help("-include", ""); + put_help("-I PATH", ""); + put_help("-D SYMBOL[=value]", ""); + put_help("-U SYMBOL", ""); + put_help("-Wp,OPTION", "pass option directly to preprocessor"); + put_help("-M", ""); + put_help("-MD", ""); + put_help("-MMD", ""); + put_help("-MM", ""); + put_help("-MP", ""); + put_help("-MT", ""); + put_help("-MQ", ""); + put_help("-MF", ""); +} + +static void print_help_parser(void) +{ + put_help("-finput-charset=CHARSET", "Select encoding of input files"); + put_help("-fmessage-length=LEN", "ignored (gcc compatibility)"); + put_help("-fshort-wchar", "wchar_t is unsigned short instead of int"); + put_help("-fshow-column", "show the column number in diagnostic messages"); + put_help("-funsigned-char", "char is an unsigned type"); + put_help("--ms", "Enable msvc extensions"); + put_help("--no-ms", "Disable msvc extensions"); + put_help("--gcc", "Enable gcc extensions"); + put_help("--no-gcc", "Disable gcc extensions"); + put_help("-std=STANDARD", "Specify language standard:"); + put_choice("c99", "ISO C99 standard"); + put_choice("c89", "ISO C89 standard"); + put_choice("c9x", "deprecated"); + put_choice("c++", "ISO C++ 98"); + put_choice("c++98", "ISO C++ 98"); + put_choice("gnu99", "ISO C99 + GNU extensions (default)"); + put_choice("gnu89", "ISO C89 + GNU extensions"); + put_choice("gnu9x", "deprecated"); + put_choice("iso9899:1990", "ISO C89"); + put_choice("iso9899:199409", "ISO C90"); + put_choice("iso9899:1999", "ISO C99"); + put_choice("iso9899:199x", "deprecated"); + put_help("-pedantic", "ignored (gcc compatibility)"); + put_help("-ansi", "ignored (gcc compatibility)"); + put_help("--strict", "Enable strict conformance checking"); +} + +static void print_help_warnings(void) +{ + put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning"); + put_help("-w", "disable all warnings"); + put_help("-Wno-trigraphs", "warn if input contains trigraphs"); + put_help("-Wundef", "Warn if an undefined macro is used in an #if"); + 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("-ffp-precise", "precise 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 fp-fast (gcc compatibility)"); + puts(""); + puts("\tMost of these options can be used with a no- prefix to disable them"); + puts("\te.g. -fno-signed-char"); +} + +static void print_help_linker(void) +{ + put_help("-l LIBRARY", ""); + put_help("-L PATH", ""); + put_help("-shared", "Produce a shared library"); + put_help("-static", "Produce statically linked binary"); + put_help("-Wl,OPTION", "pass option directly to linker"); +} + +static void print_help_debug(void) +{ + put_help("--lextest", "Preprocess and tokenize only"); + put_help("--print-ast", "Preprocess, parse and print AST"); + put_help("--print-implicit-cast", ""); + put_help("--print-parenthesis", ""); + put_help("--benchmark", "Preprocess and parse, produces no output"); + put_help("--time", "Measure time of compiler passes"); + put_help("--dump-function func", "Preprocess, parse and output vcg graph of func"); + put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation"); +} + +static void print_help_language_tools(void) +{ + put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language"); + put_help("--print-jna", "Preprocess, parse and generate declarations for JNA"); + put_help("--jna-limit filename", ""); + put_help("--jna-libname name", ""); +} + +static void print_help_firm(void) +{ + put_help("-bOPTION", "directly pass option to libFirm backend"); + int res = be_parse_arg("help"); + (void) res; + assert(res); +} + +typedef enum { + HELP_NONE = 0, + HELP_BASIC = 1u << 0, + HELP_PREPROCESSOR = 1u << 1, + HELP_PARSER = 1u << 2, + HELP_WARNINGS = 1u << 3, + HELP_OPTIMIZATION = 1u << 4, + HELP_CODEGEN = 1u << 5, + HELP_LINKER = 1u << 6, + HELP_LANGUAGETOOLS = 1u << 7, + HELP_DEBUG = 1u << 8, + HELP_FIRM = 1u << 9, + + HELP_ALL = (unsigned)-1 +} help_sections_t; + +static void print_help(const char *argv0, help_sections_t sections) +{ + if (sections & HELP_BASIC) print_help_basic(argv0); + if (sections & HELP_PREPROCESSOR) print_help_preprocessor(); + if (sections & HELP_PARSER) print_help_parser(); + if (sections & HELP_WARNINGS) print_help_warnings(); + if (sections & HELP_OPTIMIZATION) print_help_optimization(); + if (sections & HELP_CODEGEN) print_help_codegeneration(); + if (sections & HELP_LINKER) print_help_linker(); + if (sections & HELP_LANGUAGETOOLS) print_help_language_tools(); + if (sections & HELP_DEBUG) print_help_debug(); + if (sections & HELP_FIRM) print_help_firm(); } static void set_be_option(const char *arg) @@ -623,7 +809,6 @@ static bool init_os_support(void) { const char *os = target_machine->operating_system; wchar_atomic_kind = ATOMIC_TYPE_INT; - force_long_double_size = 0; enable_main_collect2_hack = false; define_intmax_types = false; @@ -631,7 +816,7 @@ static bool init_os_support(void) || streq(os, "solaris")) { set_create_ld_ident(create_name_linux_elf); } else if (streq(os, "darwin")) { - force_long_double_size = 16; + long_double_size = 16; set_create_ld_ident(create_name_macho); define_intmax_types = true; } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) { @@ -660,6 +845,17 @@ static void setup_target_machine(void) { if (!setup_firm_for_machine(target_machine)) exit(1); + + const backend_params *be_params = be_get_backend_param(); + if (be_params->long_double_size % 8 != 0) { + fprintf(stderr, "firm-target long double size is not a multiple of 8, can't handle this\n"); + exit(1); + } + + byte_order_big_endian = be_params->byte_order_big_endian; + machine_size = be_params->machine_size; + long_double_size = be_params->long_double_size / 8; + init_os_support(); } @@ -695,25 +891,27 @@ int main(int argc, char **argv) obstack_init(&file_obst); #define GET_ARG_AFTER(def, args) \ + do { \ def = &arg[sizeof(args)-1]; \ - if (def[0] == '\0') { \ + if (def[0] == '\0') { \ ++i; \ - if (i >= argc) { \ + if (i >= argc) { \ fprintf(stderr, "error: expected argument after '" args "'\n"); \ argument_errors = true; \ break; \ } \ def = argv[i]; \ - if (def[0] == '-' && def[1] != '\0') { \ + if (def[0] == '-' && def[1] != '\0') { \ fprintf(stderr, "error: expected argument after '" args "'\n"); \ argument_errors = true; \ continue; \ } \ - } + } \ + } while (0) #define SINGLE_OPTION(ch) (option[0] == (ch) && option[1] == '\0') - /* early options parsing (find out optimisation level and OS) */ + /* early options parsing (find out optimization level and OS) */ for (int i = 1; i < argc; ++i) { const char *arg = argv[i]; if (arg[0] != '-') @@ -735,12 +933,12 @@ int main(int argc, char **argv) setup_target_machine(); /* parse rest of options */ - standard = STANDARD_DEFAULT; - unsigned features_on = 0; - unsigned features_off = 0; - filetype_t forced_filetype = FILETYPE_AUTODETECT; - bool help_displayed = false; - bool argument_errors = false; + standard = STANDARD_DEFAULT; + unsigned features_on = 0; + unsigned features_off = 0; + filetype_t forced_filetype = FILETYPE_AUTODETECT; + help_sections_t help = HELP_NONE; + bool argument_errors = false; for (int i = 1; i < argc; ++i) { const char *arg = argv[i]; if (arg[0] == '-' && arg[1] != '\0') { @@ -783,7 +981,7 @@ int main(int argc, char **argv) } else if (SINGLE_OPTION('v')) { verbose = 1; } else if (SINGLE_OPTION('w')) { - memset(&warning, 0, sizeof(warning)); + disable_all_warnings(); } else if (option[0] == 'x') { const char *opt; GET_ARG_AFTER(opt, "-x"); @@ -847,6 +1045,17 @@ int main(int argc, char **argv) strstart(orig_opt, "align-jumps=") || strstart(orig_opt, "align-functions=")) { fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); + } else if (strstart(orig_opt, "visibility=")) { + const char *val = strchr(orig_opt, '=')+1; + elf_visibility_tag_t visibility + = get_elf_visibility_from_string(val); + if (visibility == ELF_VISIBILITY_ERROR) { + fprintf(stderr, "invalid visibility '%s' specified\n", + val); + argument_errors = true; + } else { + set_default_visibility(visibility); + } } else if (strstart(orig_opt, "message-length=")) { /* ignore: would only affect error message format */ } else { @@ -860,6 +1069,8 @@ int main(int argc, char **argv) if (streq(opt, "builtins")) { use_builtins = truth_value; + } else 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")) { @@ -867,10 +1078,13 @@ int main(int argc, char **argv) } 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")) { - firm_option(truth_value ? "strength-red" : "no-strength-red"); + /* 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")) { @@ -883,14 +1097,19 @@ int main(int argc, char **argv) profile_generate = truth_value; } else if (streq(opt, "profile-use")) { profile_use = truth_value; - } else if (truth_value == false && + } else if (!truth_value && streq(opt, "asynchronous-unwind-tables")) { /* nothing todo, a gcc feature which we don't support * anyway was deactivated */ - } else if (streq(orig_opt, "verbose-asm")) { + } else if (streq(opt, "verbose-asm")) { /* ignore: we always print verbose assembler */ - } else if (streq(opt, "fast-math") || - streq(opt, "jump-tables") || + } else if (streq(opt, "fast-math") || streq(opt, "fp-fast")) { + firm_fp_model = fp_model_fast; + } else if (streq(opt, "fp-precise")) { + firm_fp_model = fp_model_precise; + } else if (streq(opt, "fp-strict")) { + firm_fp_model = fp_model_strict; + } else if (streq(opt, "jump-tables") || streq(opt, "expensive-optimizations") || streq(opt, "common") || streq(opt, "optimize-sibling-calls") || @@ -899,6 +1118,9 @@ int main(int argc, char **argv) streq(opt, "align-functions") || streq(opt, "PIC")) { fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); + } else if (streq(opt, "help")) { + fprintf(stderr, "warning: -fhelp is deprecated\n"); + help |= HELP_OPTIMIZATION; } else { int res = firm_option(orig_opt); if (res == 0) { @@ -906,28 +1128,28 @@ int main(int argc, char **argv) orig_opt); argument_errors = true; continue; - } else if (res == -1) { - help_displayed = true; } } } } else if (option[0] == 'b') { const char *opt; GET_ARG_AFTER(opt, "-b"); - int res = be_parse_arg(opt); - if (res == 0) { - fprintf(stderr, "error: unknown Firm backend option '-b %s'\n", - opt); - argument_errors = true; - } else if (res == -1) { - help_displayed = true; - } else if (strstart(opt, "isa=")) { - strncpy(cpu_arch, opt, sizeof(cpu_arch)); + + if (streq(opt, "help")) { + fprintf(stderr, "warning: -bhelp is deprecated (use --help-firm)\n"); + help |= HELP_FIRM; + } else { + int res = be_parse_arg(opt); + if (res == 0) { + fprintf(stderr, "error: unknown Firm backend option '-b %s'\n", + opt); + argument_errors = true; + } else if (strstart(opt, "isa=")) { + strncpy(cpu_arch, opt, sizeof(cpu_arch)); + } } } else if (option[0] == 'W') { - if (option[1] == '\0') { - /* ignore -W, our defaults are already quite verbose */ - } else if (strstart(option + 1, "p,")) { + if (strstart(option + 1, "p,")) { // pass options directly to the preprocessor const char *opt; GET_ARG_AFTER(opt, "-Wp,"); @@ -969,14 +1191,12 @@ int main(int argc, char **argv) GET_ARG_AFTER(opt, "-march="); snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt); int res = be_parse_arg(arch_opt); + snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); + res &= be_parse_arg(arch_opt); + if (res == 0) { fprintf(stderr, "Unknown architecture '%s'\n", arch_opt); argument_errors = true; - } else { - snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); - int res = be_parse_arg(arch_opt); - if (res == 0) - argument_errors = true; } } else if (strstart(opt, "tune=")) { GET_ARG_AFTER(opt, "-mtune="); @@ -1012,10 +1232,6 @@ int main(int argc, char **argv) int res = be_parse_arg(arch_opt); if (res == 0) argument_errors = true; - } else if (streq(opt, "omit-leaf-frame-pointer")) { - set_be_option("omitleaffp=1"); - } else if (streq(opt, "no-omit-leaf-frame-pointer")) { - set_be_option("omitleaffp=0"); } else if (streq(opt, "rtd")) { default_calling_convention = CC_STDCALL; } else if (strstart(opt, "regparm=")) { @@ -1033,9 +1249,10 @@ int main(int argc, char **argv) fprintf(stderr, "error: option -m supports only 16, 32 or 64\n"); argument_errors = true; } else { - machine_size = (unsigned int)value; + add_flag(&cppflags_obst, "-m%u", machine_size); add_flag(&asflags_obst, "-m%u", machine_size); add_flag(&ldflags_obst, "-m%u", machine_size); + /* TODO: choose/change backend based on this */ } } } else if (streq(option, "pg")) { @@ -1044,8 +1261,6 @@ int main(int argc, char **argv) } else if (streq(option, "pedantic") || streq(option, "ansi")) { fprintf(stderr, "warning: ignoring gcc option '%s'\n", arg); - } else if (streq(option, "shared")) { - add_flag(&ldflags_obst, "-shared"); } else if (strstart(option, "std=")) { const char *const o = &option[4]; standard = @@ -1122,8 +1337,25 @@ int main(int argc, char **argv) print_cparser_version(); return EXIT_SUCCESS; } else if (streq(option, "help")) { - print_help(argv[0]); - help_displayed = true; + 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) { @@ -1193,7 +1425,8 @@ int main(int argc, char **argv) } } - if (help_displayed) { + if (help != HELP_NONE) { + print_help(argv[0], help); return !argument_errors; } @@ -1223,7 +1456,6 @@ int main(int argc, char **argv) } gen_firm_init(); - byte_order_big_endian = be_get_backend_param()->byte_order_big_endian; init_symbol_table(); init_types(); init_typehash(); @@ -1341,13 +1573,13 @@ preprocess: preprocessed_in = preprocess(filename, filetype); if (mode == PreprocessOnly) { copy_file(out, preprocessed_in); - int result = pclose(preprocessed_in); + int pp_result = pclose(preprocessed_in); fclose(out); /* remove output file in case of error */ - if (out != stdout && result != EXIT_SUCCESS) { + if (out != stdout && pp_result != EXIT_SUCCESS) { unlink(outname); } - return result; + return pp_result; } in = preprocessed_in;