X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=6b1a47355e99329d6b22d40a18c28c486a0b1532;hb=ef26133e70bcbc508d2991bafef373f5ca667ff2;hp=462258e51db4c9028154ad636893c2b4d718144a;hpb=103d024a3572a6607bd7d18a129b93d2dbfeff82;p=cparser diff --git a/main.c b/main.c index 462258e..6b1a473 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" @@ -98,22 +98,15 @@ #define ASSEMBLER "gcc -c -xassembler" #endif -unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC; -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; -bool enable_main_collect2_hack = false; -bool freestanding = false; +unsigned int c_mode = _C89 | _ANSI | _C99 | _GNUC; +bool byte_order_big_endian = false; +bool strict_mode = false; +bool enable_main_collect2_hack = false; +bool freestanding = false; +unsigned architecture_modulo_shift = 0; -/* 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 bool char_is_signed = true; +static atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT; static machine_triple_t *target_machine; static const char *target_triple; @@ -124,10 +117,10 @@ static struct obstack asflags_obst; static char dep_target[1024]; static const char *outname; static bool define_intmax_types; +static const char *input_encoding; typedef enum lang_standard_t { STANDARD_DEFAULT, /* gnu99 (for C, GCC does gnu89) or gnu++98 (for C++) */ - STANDARD_ANSI, /* c89 (for C) or c++98 (for C++) */ STANDARD_C89, /* ISO C90 (sic) */ STANDARD_C90, /* ISO C90 as modified in amendment 1 */ STANDARD_C99, /* ISO C99 */ @@ -137,8 +130,6 @@ typedef enum lang_standard_t { STANDARD_GNUXX98 /* ISO C++ 1998 plus amendments and GNU extensions */ } lang_standard_t; -static lang_standard_t standard; - typedef struct file_list_entry_t file_list_entry_t; typedef enum filetype_t { @@ -185,33 +176,30 @@ static void get_output_name(char *buf, size_t buflen, const char *inputname, panic("filename too long"); } -#include "gen_builtins.h" - static translation_unit_t *do_parsing(FILE *const in, const char *const input_name) { start_parsing(); - if (use_builtins) { - lexer_open_buffer(builtins, sizeof(builtins)-1, ""); - parse(); - } - - lexer_open_stream(in, input_name); + input_t *input = input_from_stream(in, input_encoding); + lexer_switch_input(input, input_name); parse(); - translation_unit_t *unit = finish_parsing(); + input_free(input); + return unit; } static void lextest(FILE *in, const char *fname) { - lexer_open_stream(in, fname); + input_t *input = input_from_stream(in, input_encoding); + lexer_switch_input(input, fname); do { lexer_next_preprocessing_token(); print_token(stdout, &lexer_token); putchar('\n'); - } while (lexer_token.type != T_EOF); + } while (lexer_token.kind != T_EOF); + input_free(input); } static void add_flag(struct obstack *obst, const char *format, ...) @@ -267,7 +255,8 @@ static const char *type_to_string(type_t *type) return get_atomic_kind_name(type->atomic.akind); } -static FILE *preprocess(const char *fname, filetype_t filetype) +static FILE *preprocess(const char *fname, filetype_t filetype, + lang_standard_t standard) { static const char *common_flags = NULL; @@ -311,20 +300,30 @@ static FILE *preprocess(const char *fname, filetype_t filetype) obstack_printf(&cppflags_obst, PREPROCESSOR); } + char const *lang; switch (filetype) { - case FILETYPE_C: - add_flag(&cppflags_obst, "-std=c99"); - break; - case FILETYPE_CXX: - add_flag(&cppflags_obst, "-std=c++98"); - break; - case FILETYPE_ASSEMBLER: - add_flag(&cppflags_obst, "-x"); - add_flag(&cppflags_obst, "assembler-with-cpp"); - break; - default: - break; + case FILETYPE_C: lang = "c"; break; + case FILETYPE_CXX: lang = "c++"; break; + case FILETYPE_ASSEMBLER: lang = "assembler-with-cpp"; break; + default: lang = NULL; break; } + if (lang) + add_flag(&cppflags_obst, "-x%s", lang); + + char const *std = NULL; + switch (standard) { + case STANDARD_C89: std = "-std=c89"; break; + case STANDARD_C90: std = "-std=iso9899:199409"; break; + case STANDARD_C99: std = "-std=c99"; break; + case STANDARD_GNU89: std = "-std=gnu89"; break; + case STANDARD_GNU99: std = "-std=gnu99"; break; + case STANDARD_CXX98: std = "-std=c++98"; break; + case STANDARD_GNUXX98: std = "-std=gnu++98"; break; + case STANDARD_DEFAULT: panic("invalid standard"); + } + if (std) + add_flag(&cppflags_obst, std); + obstack_printf(&cppflags_obst, "%s", common_flags); /* handle dependency generation */ @@ -332,8 +331,8 @@ static FILE *preprocess(const char *fname, filetype_t filetype) add_flag(&cppflags_obst, "-MF"); add_flag(&cppflags_obst, dep_target); if (outname != NULL) { - add_flag(&cppflags_obst, "-MQ"); - add_flag(&cppflags_obst, outname); + add_flag(&cppflags_obst, "-MQ"); + add_flag(&cppflags_obst, outname); } } add_flag(&cppflags_obst, fname); @@ -348,7 +347,7 @@ static FILE *preprocess(const char *fname, filetype_t filetype) fprintf(stderr, "invoking preprocessor failed\n"); exit(EXIT_FAILURE); } - /* we don't really need that anymore */ + /* we do not really need that anymore */ obstack_free(&cppflags_obst, commandline); return f; @@ -479,13 +478,13 @@ static FILE *make_temp_file(char *buffer, size_t buflen, const char *prefix) int fd = mkstemp(buffer); if (fd == -1) { - fprintf(stderr, "couldn't create temporary file: %s\n", + fprintf(stderr, "could not create temporary file: %s\n", strerror(errno)); exit(EXIT_FAILURE); } FILE *out = fdopen(fd, "w"); if (out == NULL) { - fprintf(stderr, "couldn't create temporary file FILE*\n"); + fprintf(stderr, "could not create temporary file FILE*\n"); exit(EXIT_FAILURE); } @@ -545,7 +544,7 @@ static void print_cparser_version(void) const char *revision = ir_get_version_revision(); if (revision[0] != 0) { - putchar(' '); + putchar('-'); fputs(revision, stdout); } @@ -559,13 +558,218 @@ 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_cparser_version_short(void) +{ + puts(cparser_REVISION); +} + +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", "Type \"wchar_t\" is unsigned short instead of int"); + put_help("-fshow-column", "Show the column number in diagnostic messages"); + put_help("-fsigned-char", "Type \"char\" is a signed type"); + put_help("-funsigned-char", "Type \"char\" is an unsigned type"); + put_help("--ms", "Enable msvc extensions"); + put_help("--no-ms", "Disable msvc extensions"); + put_help("--gcc", "Enable gcc extensions"); + put_help("--no-gcc", "Disable gcc extensions"); + put_help("-std=STANDARD", "Specify language standard:"); + put_choice("c99", "ISO C99 standard"); + put_choice("c89", "ISO C89 standard"); + put_choice("c9x", "Deprecated"); + put_choice("c++", "ISO C++ 98"); + put_choice("c++98", "ISO C++ 98"); + put_choice("gnu99", "ISO C99 + GNU extensions (default)"); + put_choice("gnu89", "ISO C89 + GNU extensions"); + put_choice("gnu9x", "Deprecated"); + put_choice("iso9899:1990", "ISO C89"); + put_choice("iso9899:199409", "ISO C90"); + put_choice("iso9899:1999", "ISO C99"); + put_choice("iso9899:199x", "Deprecated"); + put_help("-pedantic", "Ignored (gcc compatibility)"); + put_help("-ansi", "Ignored (gcc compatibility)"); + put_help("--strict", "Enable strict conformance checking"); +} + +static void print_help_warnings(void) +{ + put_help("-f[no-]diagnostics-show-option", "Show the switch, which controls a warning, after each warning"); + put_help("-w", "Disable all warnings"); + put_help("-Wno-trigraphs", "Warn if input contains trigraphs"); + put_help("-Wundef", "Warn if an undefined macro is used in an #if"); + put_help("-Wmissing-include-dirs", "Warn about missing user-specified include directories"); + put_help("-Wendif-labels", "Warn about stray text after #elif and #endif"); + put_help("-Winit-self", "Ignored (gcc compatibility)"); + put_help("-Wformat-y2k", "Ignored (gcc compatibility)"); + put_help("-Wformat-security", "Ignored (gcc compatibility)"); + put_help("-Wold-style-declaration", "Ignored (gcc compatibility)"); + put_help("-Wtype-limits", "Ignored (gcc compatibility)"); + print_warning_opt_help(); +} + +static void print_help_optimization(void) +{ + put_help("-O LEVEL", "Select optimization level (0-4)"); + firm_option_help(put_help); + put_help("-fexpensive-optimizations","Ignored (gcc compatibility)"); +} + +static void print_help_codegeneration(void) +{ + put_help("-g", "Generate debug information"); + put_help("-pg", "Instrument code for gnu gprof"); + put_help("-fomit-frame-pointer", "Produce code without frame pointer where possible"); + put_help("-ffreestanding", "Compile in freestanding mode (see ISO C standard)"); + put_help("-fhosted", "Compile in hosted (not freestanding) mode"); + put_help("-fprofile-generate", "Generate instrumented code to collect profile information"); + put_help("-fprofile-use", "Use profile information generated by instrumented binaries"); + put_help("-ffp-precise", "Precise floating point model"); + put_help("-ffp-fast", "Imprecise floating point model"); + put_help("-ffp-strict", "Strict floating point model"); + put_help("-pthread", "Use pthread threading library"); + put_help("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple"); + put_help("-mtriple=TARGET", "Alias for -mtarget (clang compatibility)"); + put_help("-march=ARCH", ""); + put_help("-mtune=ARCH", ""); + put_help("-mcpu=CPU", ""); + put_help("-mfpmath=", ""); + put_help("-mpreferred-stack-boundary=", ""); + put_help("-mrtd", ""); + put_help("-mregparm=", "Not supported yet"); + put_help("-msoft-float", "Not supported yet"); + put_help("-m32", "Generate 32bit code"); + put_help("-m64", "Generate 64bit code"); + put_help("-fverbose-asm", "Ignored (gcc compatibility)"); + put_help("-fjump-tables", "Ignored (gcc compatibility)"); + put_help("-fcommon", "Ignored (gcc compatibility)"); + put_help("-foptimize-sibling-calls", "Ignored (gcc compatibility)"); + put_help("-falign-loops", "Ignored (gcc compatibility)"); + put_help("-falign-jumps", "Ignored (gcc compatibility)"); + put_help("-falign-functions", "Ignored (gcc compatibility)"); + put_help("-fPIC", "Ignored (gcc compatibility)"); + put_help("-ffast-math", "Same as -ffp-fast (gcc compatibility)"); + puts(""); + puts("\tMost of these options can be used with a no- prefix to disable them"); + puts("\te.g. -fno-omit-frame-pointer"); +} + +static void print_help_linker(void) +{ + put_help("-l LIBRARY", ""); + put_help("-L PATH", ""); + put_help("-s", "Do not produce symbol table and relocation information"); + put_help("-shared", "Produce a shared library"); + put_help("-static", "Produce statically linked binary"); + put_help("-Wl,OPTION", "Pass option directly to linker"); +} + +static void print_help_debug(void) +{ + put_help("--lextest", "Preprocess and tokenize only"); + put_help("--print-ast", "Preprocess, parse and print AST"); + put_help("--print-implicit-cast", ""); + put_help("--print-parenthesis", ""); + put_help("--benchmark", "Preprocess and parse, produces no output"); + put_help("--time", "Measure time of compiler passes"); + put_help("--dump-function func", "Preprocess, parse and output vcg graph of func"); + put_help("--export-ir", "Preprocess, parse and output compiler intermediate representation"); +} + +static void print_help_language_tools(void) +{ + put_help("--print-fluffy", "Preprocess, parse and generate declarations for the fluffy language"); + put_help("--print-jna", "Preprocess, parse and generate declarations for JNA"); + put_help("--jna-limit filename", ""); + put_help("--jna-libname name", ""); +} + +static void print_help_firm(void) +{ + put_help("-bOPTION", "Directly pass option to libFirm backend"); + int res = be_parse_arg("help"); + (void) res; + assert(res); +} + +typedef enum { + HELP_NONE = 0, + HELP_BASIC = 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) @@ -582,7 +786,7 @@ static void copy_file(FILE *dest, FILE *input) 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"); + perror("could not write output"); } } } @@ -595,7 +799,7 @@ static FILE *open_file(const char *filename) FILE *in = fopen(filename, "r"); if (in == NULL) { - fprintf(stderr, "Couldn't open '%s': %s\n", filename, + fprintf(stderr, "Could not open '%s': %s\n", filename, strerror(errno)); exit(EXIT_FAILURE); } @@ -621,20 +825,16 @@ static filetype_t get_filetype_from_string(const char *string) 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; - if (strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL - || streq(os, "solaris")) { + if (firm_is_unixish_os(target_machine)) { set_create_ld_ident(create_name_linux_elf); - } else if (streq(os, "darwin")) { - force_long_double_size = 16; + } else if (firm_is_darwin_os(target_machine)) { set_create_ld_ident(create_name_macho); define_intmax_types = true; - } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) { + } 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); @@ -656,17 +856,190 @@ static bool parse_target_triple(const char *arg) return true; } -static void setup_target_machine(void) +static unsigned decide_modulo_shift(unsigned type_size) +{ + if (architecture_modulo_shift == 0) + return 0; + if (type_size < architecture_modulo_shift) + return architecture_modulo_shift; + return type_size; +} + +static bool is_ia32_cpu(const char *architecture) +{ + return streq(architecture, "i386") + || streq(architecture, "i486") + || streq(architecture, "i586") + || streq(architecture, "i686") + || streq(architecture, "i786"); +} + +static const char *setup_isa_from_tripel(const machine_triple_t *machine) +{ + const char *cpu = machine->cpu_type; + + if (is_ia32_cpu(cpu)) { + return "ia32"; + } else if (streq(cpu, "x86_64")) { + return "amd64"; + } else if (streq(cpu, "sparc")) { + return "sparc"; + } else if (streq(cpu, "arm")) { + return "arm"; + } else { + fprintf(stderr, "Unknown cpu '%s' in target-triple\n", cpu); + return NULL; + } +} + +static const char *setup_target_machine(void) { if (!setup_firm_for_machine(target_machine)) exit(1); + + const char *isa = setup_isa_from_tripel(target_machine); + + if (isa == NULL) + exit(1); + init_os_support(); + + return isa; } -int main(int argc, char **argv) +/** + * initialize cparser type properties based on a firm type + */ +static void set_typeprops_type(atomic_type_properties_t* props, ir_type *type) { - firm_early_init(); + props->size = get_type_size_bytes(type); + props->alignment = get_type_alignment_bytes(type); + props->struct_alignment = props->alignment; +} +/** + * Copy atomic type properties except the integer conversion rank + */ +static void copy_typeprops(atomic_type_properties_t *dest, + const atomic_type_properties_t *src) +{ + dest->size = src->size; + dest->alignment = src->alignment; + dest->struct_alignment = src->struct_alignment; + dest->flags = src->flags; +} + +static void init_types_and_adjust(void) +{ + const backend_params *be_params = be_get_backend_param(); + unsigned machine_size = be_params->machine_size; + init_types(machine_size); + + atomic_type_properties_t *props = atomic_type_properties; + + /* adjust types as requested by target architecture */ + ir_type *type_long_double = be_params->type_long_double; + if (type_long_double != NULL) { + set_typeprops_type(&props[ATOMIC_TYPE_LONG_DOUBLE], type_long_double); + atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = get_type_mode(type_long_double); + } + + ir_type *type_long_long = be_params->type_long_long; + if (type_long_long != NULL) + set_typeprops_type(&props[ATOMIC_TYPE_LONGLONG], type_long_long); + + ir_type *type_unsigned_long_long = be_params->type_unsigned_long_long; + if (type_unsigned_long_long != NULL) + set_typeprops_type(&props[ATOMIC_TYPE_ULONGLONG], type_unsigned_long_long); + + /* operating system ABI specifics */ + if (firm_is_darwin_os(target_machine)) { + if (machine_size == 32) { + props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4; + props[ATOMIC_TYPE_LONG_DOUBLE].size = 16; + props[ATOMIC_TYPE_LONG_DOUBLE].alignment = 16; + props[ATOMIC_TYPE_LONG_DOUBLE].struct_alignment = 16; + } + } else if (firm_is_windows_os(target_machine)) { + 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)) { + /* System V has a broken alignment for double so we have to add + * a hack here */ + props[ATOMIC_TYPE_DOUBLE].struct_alignment = 4; + props[ATOMIC_TYPE_LONGLONG].struct_alignment = 4; + props[ATOMIC_TYPE_ULONGLONG].struct_alignment = 4; + } + } + + /* stuff decided after processing operating system specifics and + * commandline flags */ + if (char_is_signed) { + props[ATOMIC_TYPE_CHAR].flags |= ATOMIC_TYPE_FLAG_SIGNED; + } else { + props[ATOMIC_TYPE_CHAR].flags &= ~ATOMIC_TYPE_FLAG_SIGNED; + } + /* copy over wchar_t properties (including rank) */ + props[ATOMIC_TYPE_WCHAR_T] = props[wchar_atomic_kind]; + + /* initialize defaults for unsupported types */ + if (type_long_long == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_LONGLONG], &props[ATOMIC_TYPE_LONG]); + } + if (type_unsigned_long_long == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_ULONGLONG], + &props[ATOMIC_TYPE_ULONG]); + } + if (type_long_double == NULL) { + copy_typeprops(&props[ATOMIC_TYPE_LONG_DOUBLE], + &props[ATOMIC_TYPE_DOUBLE]); + } + + /* initialize firm pointer modes */ + char name[64]; + 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; + } +} + +int main(int argc, char **argv) +{ const char *dumpfunction = NULL; const char *print_file_name_file = NULL; compile_mode_t mode = CompileAssembleLink; @@ -695,25 +1068,30 @@ 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) */ + /* 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] != '-') @@ -725,9 +1103,6 @@ int main(int argc, char **argv) } } - const char *target = getenv("TARGET"); - if (target != NULL) - parse_target_triple(target); if (target_machine == NULL) { target_machine = firm_get_host_machine(); } @@ -735,12 +1110,12 @@ 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; + lang_standard_t 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') { @@ -749,13 +1124,15 @@ int main(int argc, char **argv) if (option[0] == 'o') { GET_ARG_AFTER(outname, "-o"); } else if (option[0] == 'g') { - set_be_option("debuginfo=stabs"); - set_be_option("omitfp=no"); + /* TODO: parse -gX with 0<=x<=3... */ + set_be_option("debug=frameinfo"); set_be_option("ia32-nooptcc=yes"); } else if (SINGLE_OPTION('c')) { mode = CompileAssemble; } else if (SINGLE_OPTION('E')) { mode = PreprocessOnly; + } else if (SINGLE_OPTION('s')) { + add_flag(&ldflags_obst, "-s"); } else if (SINGLE_OPTION('S')) { mode = Compile; } else if (option[0] == 'O') { @@ -783,7 +1160,8 @@ int main(int argc, char **argv) } else if (SINGLE_OPTION('v')) { verbose = 1; } else if (SINGLE_OPTION('w')) { - memset(&warning, 0, sizeof(warning)); + add_flag(&cppflags_obst, "-w"); + disable_all_warnings(); } else if (option[0] == 'x') { const char *opt; GET_ARG_AFTER(opt, "-x"); @@ -842,13 +1220,34 @@ int main(int argc, char **argv) if (strstart(orig_opt, "input-charset=")) { char const* const encoding = strchr(orig_opt, '=') + 1; - select_input_encoding(encoding); + input_encoding = encoding; } else if (strstart(orig_opt, "align-loops=") || strstart(orig_opt, "align-jumps=") || strstart(orig_opt, "align-functions=")) { fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); + } else if (strstart(orig_opt, "visibility=")) { + const char *val = strchr(orig_opt, '=')+1; + elf_visibility_tag_t visibility + = get_elf_visibility_from_string(val); + if (visibility == ELF_VISIBILITY_ERROR) { + fprintf(stderr, "invalid visibility '%s' specified\n", + val); + argument_errors = true; + } else { + set_default_visibility(visibility); + } } else if (strstart(orig_opt, "message-length=")) { /* ignore: would only affect error message format */ + } else if (streq(orig_opt, "fast-math") || + streq(orig_opt, "fp-fast")) { + firm_fp_model = fp_model_fast; + } else if (streq(orig_opt, "fp-precise")) { + firm_fp_model = fp_model_precise; + } else if (streq(orig_opt, "fp-strict")) { + firm_fp_model = fp_model_strict; + } else if (streq(orig_opt, "help")) { + fprintf(stderr, "warning: -fhelp is deprecated\n"); + help |= HELP_OPTIMIZATION; } else { /* -f options which have an -fno- variant */ char const *opt = orig_opt; @@ -858,8 +1257,8 @@ int main(int argc, char **argv) opt += 3; } - if (streq(opt, "builtins")) { - use_builtins = truth_value; + 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 +1266,13 @@ 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")) { @@ -885,19 +1287,21 @@ int main(int argc, char **argv) profile_use = truth_value; } else if (!truth_value && streq(opt, "asynchronous-unwind-tables")) { - /* nothing todo, a gcc feature which we don't support + /* nothing todo, a gcc feature which we do not 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, "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, "unroll-loops") || + streq(opt, "PIC") || + streq(opt, "stack-protector") || + streq(opt, "stack-protector-all")) { fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt); } else { int res = firm_option(orig_opt); @@ -906,28 +1310,28 @@ 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,"); @@ -938,8 +1342,17 @@ int main(int argc, char **argv) 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, "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]); } @@ -954,7 +1367,8 @@ int main(int argc, char **argv) if (!parse_target_triple(opt)) { argument_errors = true; } else { - setup_target_machine(); + const char *isa = setup_target_machine(); + strncpy(cpu_arch, isa, sizeof(cpu_arch)); target_triple = opt; } } else if (strstart(opt, "triple=")) { @@ -962,21 +1376,20 @@ int main(int argc, char **argv) if (!parse_target_triple(opt)) { argument_errors = true; } else { - setup_target_machine(); + const char *isa = setup_target_machine(); + strncpy(cpu_arch, isa, sizeof(cpu_arch)); target_triple = opt; } } else if (strstart(opt, "arch=")) { GET_ARG_AFTER(opt, "-march="); snprintf(arch_opt, sizeof(arch_opt), "%s-arch=%s", cpu_arch, opt); int res = be_parse_arg(arch_opt); + snprintf(arch_opt, sizeof(arch_opt), "%s-opt=%s", cpu_arch, opt); + res &= be_parse_arg(arch_opt); + if (res == 0) { fprintf(stderr, "Unknown architecture '%s'\n", arch_opt); argument_errors = true; - } else { - 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="); @@ -997,7 +1410,7 @@ int main(int argc, char **argv) else if (streq(opt, "sse")) opt = "sse2"; else { - fprintf(stderr, "error: option -mfpumath supports only 387 or sse\n"); + fprintf(stderr, "error: option -mfpmath supports only 387 or sse\n"); argument_errors = true; } if (!argument_errors) { @@ -1012,18 +1425,20 @@ 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=")) { fprintf(stderr, "error: regparm convention not supported yet\n"); argument_errors = true; } else if (streq(opt, "soft-float")) { - fprintf(stderr, "error: software floatingpoint not supported yet\n"); - argument_errors = true; + add_flag(&ldflags_obst, "-msoft-float"); + snprintf(arch_opt, sizeof(arch_opt), "%s-fpunit=softfloat", cpu_arch); + int res = be_parse_arg(arch_opt); + if (res == 0) + argument_errors = true; + } else 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) { @@ -1033,7 +1448,9 @@ 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; + 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); } @@ -1041,8 +1458,9 @@ int main(int argc, char **argv) } else if (streq(option, "pg")) { set_be_option("gprof"); add_flag(&ldflags_obst, "-pg"); - } else if (streq(option, "pedantic") || - streq(option, "ansi")) { + } else if (streq(option, "ansi")) { + add_flag(&cppflags_obst, "-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]; @@ -1063,6 +1481,11 @@ int main(int argc, char **argv) (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] == '-') { @@ -1120,8 +1543,25 @@ 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) { @@ -1134,6 +1574,8 @@ int main(int argc, char **argv) mode = CompileDump; } else if (streq(option, "export-ir")) { mode = CompileExportIR; + } else if (streq(option, "unroll-loops")) { + /* ignore (gcc compatibility) */ } else { fprintf(stderr, "error: unknown argument '%s'\n", arg); argument_errors = true; @@ -1191,7 +1633,8 @@ int main(int argc, char **argv) } } - if (help_displayed) { + if (help != HELP_NONE) { + print_help(argv[0], help); return !argument_errors; } @@ -1220,12 +1663,16 @@ int main(int argc, char **argv) set_be_option("profileuse"); } - gen_firm_init(); - byte_order_big_endian = be_get_backend_param()->byte_order_big_endian; init_symbol_table(); - init_types(); + init_types_and_adjust(); init_typehash(); init_basic_types(); + if (wchar_atomic_kind == ATOMIC_TYPE_INT) + init_wchar_types(type_int); + else if (wchar_atomic_kind == ATOMIC_TYPE_USHORT) + init_wchar_types(type_short); + else + panic("unexpected wchar type"); init_lexer(); init_ast(); init_parser(); @@ -1294,7 +1741,7 @@ int main(int argc, char **argv) } else { out = fopen(outname, "w"); if (out == NULL) { - fprintf(stderr, "Couldn't open '%s' for writing: %s\n", outname, + fprintf(stderr, "Could not open '%s' for writing: %s\n", outname, strerror(errno)); return EXIT_FAILURE; } @@ -1303,12 +1750,27 @@ int main(int argc, char **argv) file_list_entry_t *file; bool already_constructed_firm = false; for (file = files; file != NULL; file = file->next) { - char asm_tempfile[1024]; - const char *filename = file->name; - filetype_t filetype = file->type; + char asm_tempfile[1024]; + const char *filename = file->name; + filetype_t filetype = file->type; + lang_standard_t file_standard = standard; if (filetype == FILETYPE_OBJECT) continue; + if (file_standard == STANDARD_DEFAULT) { + switch (filetype) { + case FILETYPE_C: + case FILETYPE_PREPROCESSED_C: + file_standard = STANDARD_GNU99; + break; + case FILETYPE_CXX: + case FILETYPE_PREPROCESSED_CXX: + file_standard = STANDARD_GNUXX98; + break; + default: + break; + } + } FILE *in = NULL; if (mode == LexTest) { @@ -1336,16 +1798,17 @@ preprocess: if (in != NULL) panic("internal compiler error: in for preprocessor != NULL"); - preprocessed_in = preprocess(filename, filetype); + preprocessed_in = preprocess(filename, filetype, + file_standard); 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; @@ -1369,44 +1832,42 @@ preprocess: /* preprocess and compile */ if (filetype == FILETYPE_PREPROCESSED_C) { char const* invalid_mode; - switch (standard) { - case STANDARD_ANSI: - case STANDARD_C89: c_mode = _C89; break; - /* TODO determine difference between these two */ - case STANDARD_C90: c_mode = _C89; break; - case STANDARD_C99: c_mode = _C89 | _C99; break; - case STANDARD_GNU89: c_mode = _C89 | _GNUC; break; + switch (file_standard) { + case STANDARD_C89: c_mode = _C89; break; + /* TODO determine difference between these two */ + case STANDARD_C90: c_mode = _C89; break; + case STANDARD_C99: c_mode = _C89 | _C99; break; + case STANDARD_GNU89: c_mode = _C89 | _GNUC; break; default_c_warn: - fprintf(stderr, - "warning: command line option \"-std=%s\" is not valid for C\n", - invalid_mode); - /* FALLTHROUGH */ - case STANDARD_DEFAULT: - case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break; - - case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn; - case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn; + fprintf(stderr, + "warning: command line option \"-std=%s\" is not valid for C\n", + invalid_mode); + /* FALLTHROUGH */ + case STANDARD_GNU99: c_mode = _C89 | _C99 | _GNUC; break; + + case STANDARD_CXX98: invalid_mode = "c++98"; goto default_c_warn; + case STANDARD_GNUXX98: invalid_mode = "gnu98"; goto default_c_warn; + case STANDARD_DEFAULT: panic("invalid standard"); } goto do_parsing; } else if (filetype == FILETYPE_PREPROCESSED_CXX) { char const* invalid_mode; - switch (standard) { - case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn; - case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn; - case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn; - case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn; - case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn; + switch (file_standard) { + case STANDARD_C89: invalid_mode = "c89"; goto default_cxx_warn; + case STANDARD_C90: invalid_mode = "c90"; goto default_cxx_warn; + case STANDARD_C99: invalid_mode = "c99"; goto default_cxx_warn; + case STANDARD_GNU89: invalid_mode = "gnu89"; goto default_cxx_warn; + case STANDARD_GNU99: invalid_mode = "gnu99"; goto default_cxx_warn; - case STANDARD_ANSI: - case STANDARD_CXX98: c_mode = _CXX; break; + case STANDARD_CXX98: c_mode = _CXX; break; default_cxx_warn: - fprintf(stderr, - "warning: command line option \"-std=%s\" is not valid for C++\n", - invalid_mode); - case STANDARD_DEFAULT: - case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break; + fprintf(stderr, + "warning: command line option \"-std=%s\" is not valid for C++\n", + invalid_mode); + case STANDARD_GNUXX98: c_mode = _CXX | _GNUC; break; + case STANDARD_DEFAULT: panic("invalid standard"); } do_parsing: @@ -1464,6 +1925,7 @@ do_parsing: if (already_constructed_firm) { panic("compiling multiple files/translation units not possible"); } + init_implicit_optimizations(); translation_unit_to_firm(unit); already_constructed_firm = true; timer_pop(t_construct); @@ -1499,18 +1961,25 @@ graph_built: } if (mode == CompileExportIR) { - fclose(out); - ir_export(outname); + ir_export_file(out); + if (ferror(out) != 0) { + fprintf(stderr, "Error while writing to output\n"); + return EXIT_FAILURE; + } return EXIT_SUCCESS; } - gen_firm_finish(asm_out, filename); + generate_code(asm_out, filename); if (asm_out != out) { fclose(asm_out); } } else if (filetype == FILETYPE_IR) { fclose(in); - ir_import(filename); + int res = ir_import(filename); + if (res != 0) { + fprintf(stderr, "Firm-Program import failed\n"); + return EXIT_FAILURE; + } goto graph_built; } else if (filetype == FILETYPE_PREPROCESSED_ASSEMBLER) { copy_file(asm_out, in); @@ -1614,6 +2083,7 @@ graph_built: obstack_free(&asflags_obst, NULL); obstack_free(&file_obst, NULL); + gen_firm_finish(); exit_mangle(); exit_ast2firm(); exit_parser();