#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;
-atomic_type_kind_t wchar_atomic_kind = ATOMIC_TYPE_INT;
-unsigned 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;
+
+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;
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++) */
{
start_parsing();
- 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.kind != T_EOF);
+ input_free(input);
}
static void add_flag(struct obstack *obst, const char *format, ...)
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();
}
{
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");
return FILETYPE_UNKNOWN;
}
+static bool is_windows_os(const char *os)
+{
+ return strstr(os, "mingw") != NULL || streq(os, "win32");
+}
+
+static bool is_unixish_os(const char *os)
+{
+ return strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL
+ || streq(os, "solaris");
+}
+
+static bool is_darwin_os(const char *os)
+{
+ return streq(os, "darwin");
+}
+
static bool init_os_support(void)
{
const char *os = target_machine->operating_system;
enable_main_collect2_hack = false;
define_intmax_types = false;
- if (strstr(os, "linux") != NULL || strstr(os, "bsd") != NULL
- || streq(os, "solaris")) {
+ if (is_unixish_os(os)) {
set_create_ld_ident(create_name_linux_elf);
- } else if (streq(os, "darwin")) {
- long_double_size = 16;
+ } else if (is_darwin_os(os)) {
set_create_ld_ident(create_name_macho);
define_intmax_types = true;
- } else if (strstr(os, "mingw") != NULL || streq(os, "win32")) {
+ } else if (is_windows_os(os)) {
wchar_atomic_kind = ATOMIC_TYPE_USHORT;
enable_main_collect2_hack = true;
set_create_ld_ident(create_name_win32);
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 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, cannot handle this\n");
+ const char *isa = setup_isa_from_tripel(target_machine);
+
+ if (isa == NULL)
exit(1);
+
+ init_os_support();
+
+ return isa;
+}
+
+/**
+ * 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)
+{
+ 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);
+
+ 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 */
+ const char *os = target_machine->operating_system;
+ if (is_darwin_os(os)) {
+ 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 (is_windows_os(os)) {
+ 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 (is_unixish_os(os)) {
+ 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;
+ }
}
- 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;
+ /* 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];
- init_os_support();
+ /* 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];
+ ir_mode_sort sort = irms_reference;
+ unsigned bit_size = machine_size;
+ bool is_signed = 0;
+ ir_mode_arithmetic arithmetic = irma_twos_complement;
+ unsigned modulo_shift = decide_modulo_shift(bit_size);
+
+ snprintf(name, sizeof(name), "p%u", machine_size);
+ ir_mode *ptr_mode = new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
+ 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)
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') {
} else if (SINGLE_OPTION('v')) {
verbose = 1;
} else if (SINGLE_OPTION('w')) {
+ add_flag(&cppflags_obst, "-w");
disable_all_warnings();
} else if (option[0] == 'x') {
const char *opt;
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=")) {
streq(opt, "align-loops") ||
streq(opt, "align-jumps") ||
streq(opt, "align-functions") ||
- streq(opt, "PIC")) {
+ 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);
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 (gcc compatibility) */
+ /* 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]);
}
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=")) {
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=")) {
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 {
long int value = strtol(opt, NULL, 10);
if (value == 0) {
fprintf(stderr, "error: option -m supports only 16, 32 or 64\n");
argument_errors = true;
} else {
+ 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);
- /* TODO: choose/change backend based on this */
}
}
} else if (streq(option, "pg")) {
gen_firm_init();
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_SHORT)
+ init_wchar_types(type_short);
+ else
+ panic("unexpected wchar type");
init_lexer();
init_ast();
init_parser();
projects / cparser / blobdiff