X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=0c9b854a762c475df07d2a67a9fca52a4ef16736;hb=776944099aee0467915e9ea4f3c2f3f10f742aaa;hp=a00e969302c0b7c51b5767383d3aa27e35c1ead8;hpb=327acad4c5abb6d3f76de0269286036e4ae3f3c3;p=cparser diff --git a/main.c b/main.c index a00e969..0c9b854 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" @@ -99,22 +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; @@ -125,6 +117,7 @@ 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++) */ @@ -186,33 +179,30 @@ 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, ...) @@ -333,8 +323,8 @@ 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); @@ -349,7 +339,7 @@ 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; @@ -480,13 +470,13 @@ 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); } @@ -546,7 +536,7 @@ static void print_cparser_version(void) const char *revision = ir_get_version_revision(); if (revision[0] != 0) { - putchar(' '); + putchar('-'); fputs(revision, stdout); } @@ -560,6 +550,11 @@ static void print_cparser_version(void) "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"); } +static void print_cparser_version_short(void) +{ + puts(cparser_REVISION); +} + static void print_help_basic(const char *argv0) { usage(argv0); @@ -569,6 +564,7 @@ static void print_help_basic(const char *argv0) 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"); @@ -585,7 +581,7 @@ static void print_help_basic(const char *argv0) put_choice("assembler", "Assembler (no preprocessing)"); put_choice("assembler-with-cpp", "Assembler with preprocessing"); put_choice("none", "Autodetection"); - put_help("-pipe", "ignored (gcc compatibility)"); + put_help("-pipe", "Ignored (gcc compatibility)"); } static void print_help_preprocessor(void) @@ -597,7 +593,7 @@ static void print_help_preprocessor(void) put_help("-I PATH", ""); put_help("-D SYMBOL[=value]", ""); put_help("-U SYMBOL", ""); - put_help("-Wp,OPTION", "pass option directly to preprocessor"); + put_help("-Wp,OPTION", "Pass option directly to preprocessor"); put_help("-M", ""); put_help("-MD", ""); put_help("-MMD", ""); @@ -611,10 +607,11 @@ static void print_help_preprocessor(void) 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("-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"); @@ -622,34 +619,42 @@ static void print_help_parser(void) 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("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("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_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("-w", "disable all warnings"); - put_help("-W", "ignored (gcc compatibility)"); - put_help("-Wno-trigraphs", "warn if input contains trigraphs"); - put_help("-Wundef", "Warn if an undefined macro is used in an #if"); + 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_optimisation(void) +static void print_help_optimization(void) { - put_help("-O LEVEL", "select optimisation level (0-4)"); - put_help("-fexpensive-optimizations","ignored (gcc compatibility)"); + 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) @@ -657,44 +662,48 @@ 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("-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("-fverbose-asm", "ignored (gcc compatibility)"); - put_help("-ffast-math", "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("-mtarget=TARGET", "Specify target architecture as CPU-manufacturer-OS triple"); - put_help("-mtriple=TARGET", "alias for -mtarget (clang compatibility)"); + 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("-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("\ti.e. -fno-signed-char"); + 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"); + put_help("-Wl,OPTION", "Pass option directly to linker"); } static void print_help_debug(void) @@ -719,7 +728,7 @@ static void print_help_language_tools(void) static void print_help_firm(void) { - put_help("-bOPTION", "directly pass option to libFirm backend"); + put_help("-bOPTION", "Directly pass option to libFirm backend"); int res = be_parse_arg("help"); (void) res; assert(res); @@ -727,18 +736,18 @@ static void print_help_firm(void) typedef enum { HELP_NONE = 0, - HELP_BASIC = 1u << 0, - HELP_PREPROCESSOR = 1u << 1, - HELP_PARSER = 1u << 2, - HELP_WARNINGS = 1u << 3, - HELP_OPTIMISATION = 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_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) @@ -747,7 +756,7 @@ static void print_help(const char *argv0, help_sections_t sections) if (sections & HELP_PREPROCESSOR) print_help_preprocessor(); if (sections & HELP_PARSER) print_help_parser(); if (sections & HELP_WARNINGS) print_help_warnings(); - if (sections & HELP_OPTIMISATION) print_help_optimisation(); + 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(); @@ -769,7 +778,7 @@ 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"); } } } @@ -782,7 +791,7 @@ 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); } @@ -808,20 +817,16 @@ 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); @@ -843,17 +848,190 @@ 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) +{ + 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) { - firm_early_init(); + 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; @@ -882,25 +1060,30 @@ 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] != '-') @@ -912,9 +1095,6 @@ 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(); } @@ -943,6 +1123,8 @@ int main(int argc, char **argv) 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') { @@ -970,7 +1152,8 @@ 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"); @@ -1029,14 +1212,34 @@ 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, "visibility=") || 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; @@ -1046,8 +1249,8 @@ 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")) { @@ -1060,7 +1263,8 @@ int main(int argc, char **argv) } 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")) { @@ -1075,23 +1279,22 @@ 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 if (streq(opt, "help")) { - fprintf(stderr, "warning: -fhelp is deprecated\n"); - help |= HELP_FIRM; } else { int res = firm_option(orig_opt); if (res == 0) { @@ -1120,9 +1323,7 @@ int main(int argc, char **argv) } } } 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,"); @@ -1133,8 +1334,17 @@ 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]); } @@ -1149,7 +1359,8 @@ 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=")) { @@ -1157,21 +1368,20 @@ 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="); @@ -1192,7 +1402,7 @@ 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) { @@ -1213,8 +1423,14 @@ int main(int argc, char **argv) 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) { @@ -1224,7 +1440,9 @@ 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); } @@ -1232,8 +1450,9 @@ 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]; @@ -1254,6 +1473,11 @@ 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] == '-') { @@ -1320,6 +1544,8 @@ int main(int argc, char **argv) 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")) { @@ -1340,6 +1566,8 @@ 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; @@ -1427,12 +1655,16 @@ 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(); @@ -1501,7 +1733,7 @@ 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; } @@ -1546,13 +1778,13 @@ 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; @@ -1671,6 +1903,7 @@ 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); @@ -1706,18 +1939,25 @@ 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); @@ -1821,6 +2061,7 @@ graph_built: obstack_free(&asflags_obst, NULL); obstack_free(&file_obst, NULL); + gen_firm_finish(); exit_mangle(); exit_ast2firm(); exit_parser();