| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "Charmonizer/Core/HeaderChecker.h" |
| #include "Charmonizer/Core/Compiler.h" |
| #include "Charmonizer/Core/ConfWriter.h" |
| #include "Charmonizer/Core/Util.h" |
| #include "Charmonizer/Probe/Integers.h" |
| #include <string.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| /* Determine endian-ness of this machine. |
| */ |
| static int |
| chaz_Integers_machine_is_big_endian(void); |
| |
| static const char chaz_Integers_stdint_type_code[] = |
| CHAZ_QUOTE( #include <stdint.h> ) |
| CHAZ_QUOTE( %s i; ); |
| |
| static const char chaz_Integers_literal64_code[] = |
| CHAZ_QUOTE( int f() { return (int)9000000000000000000%s; } ); |
| |
| void |
| chaz_Integers_run(void) { |
| char *output; |
| size_t output_len; |
| int sizeof_char = -1; |
| int sizeof_short = -1; |
| int sizeof_int = -1; |
| int sizeof_ptr = -1; |
| int sizeof_long = -1; |
| int sizeof_long_long = -1; |
| int sizeof___int64 = -1; |
| int sizeof_size_t = -1; |
| int has_8 = false; |
| int has_16 = false; |
| int has_32 = false; |
| int has_64 = false; |
| int has_long_long = false; |
| int has___int64 = false; |
| int has_intptr_t = false; |
| int has_inttypes = chaz_HeadCheck_check_header("inttypes.h"); |
| int has_stdint = chaz_HeadCheck_check_header("stdint.h"); |
| char i32_t_type[10]; |
| char i32_t_postfix[10]; |
| char u32_t_postfix[10]; |
| char i64_t_type[10]; |
| char i64_t_postfix[10]; |
| char u64_t_postfix[10]; |
| char printf_modifier_32[10]; |
| char printf_modifier_64[10]; |
| char code_buf[1000]; |
| char scratch[50]; |
| |
| chaz_ConfWriter_start_module("Integers"); |
| |
| /* Document endian-ness. */ |
| if (chaz_Integers_machine_is_big_endian()) { |
| chaz_ConfWriter_add_def("BIG_END", NULL); |
| } |
| else { |
| chaz_ConfWriter_add_def("LITTLE_END", NULL); |
| } |
| |
| /* Record sizeof() for several common integer types. */ |
| sizeof_char = chaz_HeadCheck_size_of_type("char", "", 1); |
| sizeof_short = chaz_HeadCheck_size_of_type("short", "", 2); |
| sizeof_int = chaz_HeadCheck_size_of_type("int", "", 4); |
| sizeof_long = chaz_HeadCheck_size_of_type("long", "", 4); |
| sizeof_ptr = chaz_HeadCheck_size_of_type("void*", "", 4); |
| sizeof_size_t = chaz_HeadCheck_size_of_type("size_t", |
| "#include <stddef.h>", 4); |
| |
| /* Determine whether long longs are available. */ |
| if (chaz_CC_test_compile("long long l;")) { |
| has_long_long = true; |
| sizeof_long_long = chaz_HeadCheck_size_of_type("long long", "", 8); |
| } |
| |
| /* Determine whether the __int64 type is available. */ |
| if (chaz_CC_test_compile("__int64 i;")) { |
| has___int64 = true; |
| sizeof___int64 = chaz_HeadCheck_size_of_type("__int64", "", 8); |
| } |
| |
| /* Determine whether the intptr_t type is available (it's optional in |
| * C99). */ |
| sprintf(code_buf, chaz_Integers_stdint_type_code, "intptr_t"); |
| if (chaz_CC_test_compile(code_buf)) { |
| has_intptr_t = true; |
| } |
| |
| /* Figure out which integer types are available. */ |
| if (sizeof_char == 1) { |
| has_8 = true; |
| } |
| if (sizeof_short == 2) { |
| has_16 = true; |
| } |
| if (sizeof_int == 4) { |
| has_32 = true; |
| strcpy(i32_t_type, "int"); |
| strcpy(i32_t_postfix, ""); |
| strcpy(u32_t_postfix, "U"); |
| strcpy(printf_modifier_32, ""); |
| } |
| else if (sizeof_long == 4) { |
| has_32 = true; |
| strcpy(i32_t_type, "long"); |
| strcpy(i32_t_postfix, "L"); |
| strcpy(u32_t_postfix, "UL"); |
| strcpy(printf_modifier_32, "l"); |
| } |
| if (sizeof_long == 8) { |
| has_64 = true; |
| strcpy(i64_t_type, "long"); |
| } |
| else if (sizeof_long_long == 8) { |
| has_64 = true; |
| strcpy(i64_t_type, "long long"); |
| } |
| else if (sizeof___int64 == 8) { |
| has_64 = true; |
| strcpy(i64_t_type, "__int64"); |
| } |
| |
| /* Probe for 64-bit literal syntax. */ |
| if (has_64 && sizeof_long == 8) { |
| strcpy(i64_t_postfix, "L"); |
| strcpy(u64_t_postfix, "UL"); |
| } |
| else if (has_64) { |
| sprintf(code_buf, chaz_Integers_literal64_code, "LL"); |
| if (chaz_CC_test_compile(code_buf)) { |
| strcpy(i64_t_postfix, "LL"); |
| } |
| else { |
| sprintf(code_buf, chaz_Integers_literal64_code, "i64"); |
| if (chaz_CC_test_compile(code_buf)) { |
| strcpy(i64_t_postfix, "i64"); |
| } |
| else { |
| chaz_Util_die("64-bit types, but no literal syntax found"); |
| } |
| } |
| sprintf(code_buf, chaz_Integers_literal64_code, "ULL"); |
| if (chaz_CC_test_compile(code_buf)) { |
| strcpy(u64_t_postfix, "ULL"); |
| } |
| else { |
| sprintf(code_buf, chaz_Integers_literal64_code, "Ui64"); |
| if (chaz_CC_test_compile(code_buf)) { |
| strcpy(u64_t_postfix, "Ui64"); |
| } |
| else { |
| chaz_Util_die("64-bit types, but no literal syntax found"); |
| } |
| } |
| } |
| |
| /* Probe for 64-bit printf format string modifier. */ |
| if (has_64) { |
| int i; |
| const char *options[] = { |
| "ll", |
| "l", |
| "L", |
| "q", /* Some *BSDs */ |
| "I64", /* Microsoft */ |
| NULL, |
| }; |
| |
| /* Buffer to hold the code, and its start and end. */ |
| static const char format_64_code[] = |
| CHAZ_QUOTE( #include <stdio.h> ) |
| CHAZ_QUOTE( int main() { ) |
| CHAZ_QUOTE( printf("%%%su", 18446744073709551615%s); ) |
| CHAZ_QUOTE( return 0; ) |
| CHAZ_QUOTE( } ); |
| |
| for (i = 0; options[i] != NULL; i++) { |
| /* Try to print 2**64-1, and see if we get it back intact. */ |
| int success; |
| sprintf(code_buf, format_64_code, options[i], u64_t_postfix); |
| output = chaz_CC_capture_output(code_buf, &output_len); |
| success = output != NULL |
| && strcmp(output, "18446744073709551615") == 0; |
| free(output); |
| |
| if (success) { |
| break; |
| } |
| } |
| |
| if (options[i] == NULL) { |
| chaz_Util_die("64-bit types, but no printf modifier found"); |
| } |
| |
| strcpy(printf_modifier_64, options[i]); |
| } |
| |
| /* Write out some conditional defines. */ |
| if (has_inttypes) { |
| chaz_ConfWriter_add_def("HAS_INTTYPES_H", NULL); |
| } |
| if (has_stdint) { |
| chaz_ConfWriter_add_def("HAS_STDINT_H", NULL); |
| } |
| if (has_long_long) { |
| chaz_ConfWriter_add_def("HAS_LONG_LONG", NULL); |
| } |
| if (has___int64) { |
| chaz_ConfWriter_add_def("HAS___INT64", NULL); |
| } |
| |
| /* Write out sizes. */ |
| sprintf(scratch, "%d", sizeof_char); |
| chaz_ConfWriter_add_def("SIZEOF_CHAR", scratch); |
| sprintf(scratch, "%d", sizeof_short); |
| chaz_ConfWriter_add_def("SIZEOF_SHORT", scratch); |
| sprintf(scratch, "%d", sizeof_int); |
| chaz_ConfWriter_add_def("SIZEOF_INT", scratch); |
| sprintf(scratch, "%d", sizeof_long); |
| chaz_ConfWriter_add_def("SIZEOF_LONG", scratch); |
| sprintf(scratch, "%d", sizeof_ptr); |
| chaz_ConfWriter_add_def("SIZEOF_PTR", scratch); |
| sprintf(scratch, "%d", sizeof_size_t); |
| chaz_ConfWriter_add_def("SIZEOF_SIZE_T", scratch); |
| if (has_long_long) { |
| sprintf(scratch, "%d", sizeof_long_long); |
| chaz_ConfWriter_add_def("SIZEOF_LONG_LONG", scratch); |
| } |
| if (has___int64) { |
| sprintf(scratch, "%d", sizeof___int64); |
| chaz_ConfWriter_add_def("SIZEOF___INT64", scratch); |
| } |
| |
| /* Write affirmations. */ |
| if (has_8) { |
| chaz_ConfWriter_add_def("HAS_INT8_T", NULL); |
| } |
| if (has_16) { |
| chaz_ConfWriter_add_def("HAS_INT16_T", NULL); |
| } |
| if (has_32) { |
| chaz_ConfWriter_add_def("HAS_INT32_T", NULL); |
| } |
| if (has_64) { |
| chaz_ConfWriter_add_def("HAS_INT64_T", NULL); |
| } |
| |
| /* Create macro for promoting pointers to integers. */ |
| if (has_64) { |
| if (sizeof_ptr == 8) { |
| chaz_ConfWriter_add_def("PTR_TO_I64(ptr)", |
| "((int64_t)(uint64_t)(ptr))"); |
| } |
| else { |
| chaz_ConfWriter_add_def("PTR_TO_I64(ptr)", |
| "((int64_t)(uint32_t)(ptr))"); |
| } |
| } |
| |
| chaz_ConfWriter_end_module(); |
| |
| /* Integer typedefs. */ |
| |
| chaz_ConfWriter_start_module("IntegerTypes"); |
| |
| if (has_stdint) { |
| chaz_ConfWriter_add_sys_include("stdint.h"); |
| } |
| else { |
| /* We support only the following subset of stdint.h |
| * int8_t |
| * int16_t |
| * int32_t |
| * int64_t |
| * intmax_t |
| * intptr_t |
| * uint8_t |
| * uint16_t |
| * uint32_t |
| * uint64_t |
| * uintmax_t |
| * uintptr_t |
| */ |
| if (has_8) { |
| chaz_ConfWriter_add_global_typedef("signed char", "int8_t"); |
| chaz_ConfWriter_add_global_typedef("unsigned char", "uint8_t"); |
| } |
| if (has_16) { |
| chaz_ConfWriter_add_global_typedef("signed short", "int16_t"); |
| chaz_ConfWriter_add_global_typedef("unsigned short", "uint16_t"); |
| } |
| if (has_32) { |
| chaz_ConfWriter_add_global_typedef(i32_t_type, "int32_t"); |
| sprintf(scratch, "unsigned %s", i32_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uint32_t"); |
| } |
| if (has_64) { |
| chaz_ConfWriter_add_global_typedef(i64_t_type, "int64_t"); |
| sprintf(scratch, "unsigned %s", i64_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uint64_t"); |
| } |
| |
| if (has_64) { |
| chaz_ConfWriter_add_global_typedef(i64_t_type, "intmax_t"); |
| sprintf(scratch, "unsigned %s", i64_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uintmax_t"); |
| } |
| else if (has_32) { |
| chaz_ConfWriter_add_global_typedef(i32_t_type, "intmax_t"); |
| sprintf(scratch, "unsigned %s", i32_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uintmax_t"); |
| } |
| } |
| |
| if (!has_intptr_t) { |
| if (sizeof_ptr == 4) { |
| chaz_ConfWriter_add_global_typedef(i32_t_type, "intptr_t"); |
| sprintf(scratch, "unsigned %s", i32_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uintptr_t"); |
| } |
| else if (sizeof_ptr == 8) { |
| chaz_ConfWriter_add_global_typedef(i64_t_type, "intptr_t"); |
| sprintf(scratch, "unsigned %s", i64_t_type); |
| chaz_ConfWriter_add_global_typedef(scratch, "uintptr_t"); |
| } |
| } |
| |
| chaz_ConfWriter_end_module(); |
| |
| /* Integer limits. */ |
| |
| chaz_ConfWriter_start_module("IntegerLimits"); |
| |
| if (has_stdint) { |
| chaz_ConfWriter_add_sys_include("stdint.h"); |
| } |
| else { |
| /* We support only the following subset of stdint.h |
| * INT8_MAX |
| * INT16_MAX |
| * INT32_MAX |
| * INT64_MAX |
| * INTMAX_MAX |
| * INTPTR_MAX |
| * INT8_MIN |
| * INT16_MIN |
| * INT32_MIN |
| * INT64_MIN |
| * INTMAX_MIN |
| * INTPTR_MIN |
| * UINT8_MAX |
| * UINT16_MAX |
| * UINT32_MAX |
| * UINT64_MAX |
| * UINTMAX_MAX |
| * UINTPTR_MAX |
| * SIZE_MAX |
| */ |
| if (has_8) { |
| chaz_ConfWriter_add_global_def("INT8_MAX", "127"); |
| chaz_ConfWriter_add_global_def("INT8_MIN", "-128"); |
| chaz_ConfWriter_add_global_def("UINT8_MAX", "255"); |
| } |
| if (has_16) { |
| chaz_ConfWriter_add_global_def("INT16_MAX", "32767"); |
| chaz_ConfWriter_add_global_def("INT16_MIN", "-32768"); |
| chaz_ConfWriter_add_global_def("UINT16_MAX", "65535"); |
| } |
| if (has_32) { |
| chaz_ConfWriter_add_global_def("INT32_MAX", "2147483647"); |
| chaz_ConfWriter_add_global_def("INT32_MIN", "(-2147483647-1)"); |
| chaz_ConfWriter_add_global_def("UINT32_MAX", "4294967295U"); |
| } |
| if (has_64) { |
| sprintf(scratch, "9223372036854775807%s", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INT64_MAX", scratch); |
| sprintf(scratch, "(-9223372036854775807%s-1)", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INT64_MIN", scratch); |
| sprintf(scratch, "18446744073709551615%s", u64_t_postfix); |
| chaz_ConfWriter_add_global_def("UINT64_MAX", scratch); |
| } |
| |
| if (has_64) { |
| sprintf(scratch, "9223372036854775807%s", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INTMAX_MAX", scratch); |
| sprintf(scratch, "(-9223372036854775807%s-1)", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INTMAX_MIN", scratch); |
| sprintf(scratch, "18446744073709551615%s", u64_t_postfix); |
| chaz_ConfWriter_add_global_def("UINTMAX_MAX", scratch); |
| } |
| else if (has_32) { |
| chaz_ConfWriter_add_global_def("INTMAX_MAX", "2147483647"); |
| chaz_ConfWriter_add_global_def("INTMAX_MIN", "(-2147483647-1)"); |
| chaz_ConfWriter_add_global_def("UINTMAX_MAX", "4294967295U"); |
| } |
| |
| chaz_ConfWriter_add_global_def("SIZE_MAX", "((size_t)-1)"); |
| } |
| |
| if (!has_intptr_t) { |
| if (sizeof_ptr == 4) { |
| chaz_ConfWriter_add_global_def("INTPTR_MAX", "2147483647"); |
| chaz_ConfWriter_add_global_def("INTPTR_MIN", "(-2147483647-1)"); |
| chaz_ConfWriter_add_global_def("UINTPTR_MAX", "4294967295U"); |
| } |
| else if (sizeof_ptr == 8) { |
| sprintf(scratch, "9223372036854775807%s", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INTPTR_MAX", scratch); |
| sprintf(scratch, "(-9223372036854775807%s-1)", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INTPTR_MIN", scratch); |
| sprintf(scratch, "18446744073709551615%s", u64_t_postfix); |
| chaz_ConfWriter_add_global_def("UINTPTR_MAX", scratch); |
| } |
| } |
| |
| chaz_ConfWriter_end_module(); |
| |
| /* Integer literals. */ |
| |
| chaz_ConfWriter_start_module("IntegerLiterals"); |
| |
| if (has_stdint) { |
| chaz_ConfWriter_add_sys_include("stdint.h"); |
| } |
| else { |
| /* We support only the following subset of stdint.h |
| * INT32_C |
| * INT64_C |
| * INTMAX_C |
| * UINT32_C |
| * UINT64_C |
| * UINTMAX_C |
| */ |
| if (has_32) { |
| if (strcmp(i32_t_postfix, "") == 0) { |
| chaz_ConfWriter_add_global_def("INT32_C(n)", "n"); |
| } |
| else { |
| sprintf(scratch, "n##%s", i32_t_postfix); |
| chaz_ConfWriter_add_global_def("INT32_C(n)", scratch); |
| } |
| sprintf(scratch, "n##%s", u32_t_postfix); |
| chaz_ConfWriter_add_global_def("UINT32_C(n)", scratch); |
| } |
| if (has_64) { |
| sprintf(scratch, "n##%s", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INT64_C(n)", scratch); |
| sprintf(scratch, "n##%s", u64_t_postfix); |
| chaz_ConfWriter_add_global_def("UINT64_C(n)", scratch); |
| } |
| |
| if (has_64) { |
| sprintf(scratch, "n##%s", i64_t_postfix); |
| chaz_ConfWriter_add_global_def("INTMAX_C(n)", scratch); |
| sprintf(scratch, "n##%s", u64_t_postfix); |
| chaz_ConfWriter_add_global_def("UINTMAX_C(n)", scratch); |
| } |
| else if (has_32) { |
| if (strcmp(i32_t_postfix, "") == 0) { |
| chaz_ConfWriter_add_global_def("INTMAX_C(n)", "n"); |
| } |
| else { |
| sprintf(scratch, "n##%s", i32_t_postfix); |
| chaz_ConfWriter_add_global_def("INTMAX_C(n)", scratch); |
| } |
| sprintf(scratch, "n##%s", u32_t_postfix); |
| chaz_ConfWriter_add_global_def("UINTMAX_C(n)", scratch); |
| } |
| } |
| |
| chaz_ConfWriter_end_module(); |
| |
| /* Integer format strings. */ |
| |
| chaz_ConfWriter_start_module("IntegerFormatStrings"); |
| |
| if (has_inttypes) { |
| if (chaz_CC_is_mingw()) { |
| /* Suppress warnings about undefined inline function `llabs` |
| * under MinGW. |
| */ |
| chaz_ConfWriter_add_sys_include("stdlib.h"); |
| } |
| chaz_ConfWriter_add_sys_include("inttypes.h"); |
| } |
| |
| { |
| /* We support only the following subset of inttypes.h |
| * PRId32 |
| * PRIi32 |
| * PRIo32 |
| * PRIu32 |
| * PRIx32 |
| * PRIX32 |
| * PRId64 |
| * PRIi64 |
| * PRIo64 |
| * PRIu64 |
| * PRIx64 |
| * PRIX64 |
| * PRIdMAX |
| * PRIiMAX |
| * PRIoMAX |
| * PRIuMAX |
| * PRIxMAX |
| * PRIXMAX |
| * PRIdPTR |
| * PRIiPTR |
| * PRIoPTR |
| * PRIuPTR |
| * PRIxPTR |
| * PRIXPTR |
| */ |
| const char *ptr; |
| char macro_name_32[] = "PRI.32"; |
| char macro_name_64[] = "PRI.64"; |
| char macro_name_max[] = "PRI.MAX"; |
| char macro_name_ptr[] = "PRI.PTR"; |
| |
| for (ptr = "diouxX"; ptr[0] != '\0'; ptr++) { |
| int c = ptr[0]; |
| |
| if (has_32) { |
| sprintf(scratch, "\"%s%c\"", printf_modifier_32, c); |
| |
| if (!has_inttypes) { |
| macro_name_32[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_32, scratch); |
| if (!has_64) { |
| macro_name_max[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_max, |
| scratch); |
| } |
| } |
| if (!has_intptr_t && sizeof_ptr == 4) { |
| macro_name_ptr[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_ptr, scratch); |
| } |
| } |
| if (has_64) { |
| sprintf(scratch, "\"%s%c\"", printf_modifier_64, c); |
| |
| if (!has_inttypes) { |
| macro_name_64[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_64, scratch); |
| macro_name_max[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_max, scratch); |
| } |
| if (!has_intptr_t && sizeof_ptr == 8) { |
| macro_name_ptr[3] = c; |
| chaz_ConfWriter_add_global_def(macro_name_ptr, scratch); |
| } |
| } |
| } |
| } |
| |
| chaz_ConfWriter_end_module(); |
| } |
| |
| static int |
| chaz_Integers_machine_is_big_endian(void) { |
| long one = 1; |
| return !(*((char*)(&one))); |
| } |
| |
| |
