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// SPDX-License-Identifier: MIT
// Copyright (C) 2017-2020 Luc Van Oostenryck.
#include <stdio.h>
#include "lib.h"
#include "machine.h"
#include "symbol.h"
#define PTYPE_SIZEOF (1U << 0)
#define PTYPE_T (1U << 1)
#define PTYPE_MAX (1U << 2)
#define PTYPE_MIN (1U << 3)
#define PTYPE_WIDTH (1U << 4)
#define PTYPE_TYPE (1U << 5)
#define PTYPE_ALL (PTYPE_MAX|PTYPE_SIZEOF|PTYPE_WIDTH)
#define PTYPE_ALL_T (PTYPE_MAX|PTYPE_SIZEOF|PTYPE_WIDTH|PTYPE_T)
static void predefined_sizeof(const char *name, const char *suffix, unsigned bits)
{
char buf[32];
snprintf(buf, sizeof(buf), "__SIZEOF_%s%s__", name, suffix);
predefine(buf, 1, "%d", bits/8);
}
static void predefined_width(const char *name, struct symbol *type)
{
char buf[32];
snprintf(buf, sizeof(buf), "__%s_WIDTH__", name);
predefine(buf, 1, "%d", type->bit_size);
}
static void predefined_max(const char *name, struct symbol *type)
{
const char *suffix = builtin_type_suffix(type);
unsigned bits = type->bit_size - is_signed_type(type);
unsigned long long max = bits_mask(bits);
char buf[32];
snprintf(buf, sizeof(buf), "__%s_MAX__", name);
predefine(buf, 1, "%#llx%s", max, suffix);
}
static void predefined_min(const char *name, struct symbol *type)
{
const char *suffix = builtin_type_suffix(type);
char buf[32];
snprintf(buf, sizeof(buf), "__%s_MIN__", name);
if (is_signed_type(type))
add_pre_buffer("#weak_define %s (-__%s_MAX__ - 1)\n", buf, name);
else
predefine(buf, 1, "0%s", suffix);
}
static void predefined_type(const char *name, struct symbol *type)
{
const char *typename = builtin_typename(type);
add_pre_buffer("#weak_define __%s_TYPE__ %s\n", name, typename);
}
static void predefined_ctype(const char *name, struct symbol *type, int flags)
{
unsigned bits = type->bit_size;
if (flags & PTYPE_SIZEOF) {
const char *suffix = (flags & PTYPE_T) ? "_T" : "";
predefined_sizeof(name, suffix, bits);
}
if (flags & PTYPE_MAX)
predefined_max(name, type);
if (flags & PTYPE_MIN)
predefined_min(name, type);
if (flags & PTYPE_TYPE)
predefined_type(name, type);
if (flags & PTYPE_WIDTH)
predefined_width(name, type);
}
void predefined_macros(void)
{
predefine("__CHECKER__", 0, "1");
predefine("__GNUC__", 1, "%d", gcc_major);
predefine("__GNUC_MINOR__", 1, "%d", gcc_minor);
predefine("__GNUC_PATCHLEVEL__", 1, "%d", gcc_patchlevel);
predefine("__STDC__", 1, "1");
predefine("__STDC_HOSTED__", 0, fhosted ? "1" : "0");
switch (standard) {
default:
break;
case STANDARD_C94:
predefine("__STDC_VERSION__", 1, "199409L");
break;
case STANDARD_C99:
case STANDARD_GNU99:
predefine("__STDC_VERSION__", 1, "199901L");
break;
case STANDARD_C11:
case STANDARD_GNU11:
predefine("__STDC_VERSION__", 1, "201112L");
break;
case STANDARD_C17:
case STANDARD_GNU17:
predefine("__STDC_VERSION__", 1, "201710L");
break;
}
if (!(standard & STANDARD_GNU) && (standard != STANDARD_NONE))
predefine("__STRICT_ANSI__", 1, "1");
if (standard >= STANDARD_C11) {
predefine("__STDC_NO_ATOMICS__", 1, "1");
predefine("__STDC_NO_COMPLEX__", 1, "1");
predefine("__STDC_NO_THREADS__", 1, "1");
}
predefine("__CHAR_BIT__", 1, "%d", bits_in_char);
if (funsigned_char)
predefine("__CHAR_UNSIGNED__", 1, "1");
predefined_ctype("SHORT", &short_ctype, PTYPE_SIZEOF);
predefined_ctype("SHRT", &short_ctype, PTYPE_MAX|PTYPE_WIDTH);
predefined_ctype("SCHAR", &schar_ctype, PTYPE_MAX|PTYPE_WIDTH);
predefined_ctype("WCHAR", wchar_ctype, PTYPE_ALL_T|PTYPE_MIN|PTYPE_TYPE);
predefined_ctype("WINT", wint_ctype, PTYPE_ALL_T|PTYPE_MIN|PTYPE_TYPE);
predefined_ctype("CHAR16", &ushort_ctype, PTYPE_TYPE);
predefined_ctype("CHAR32", uint32_ctype, PTYPE_TYPE);
predefined_ctype("INT", &int_ctype, PTYPE_ALL);
predefined_ctype("LONG", &long_ctype, PTYPE_ALL);
predefined_ctype("LONG_LONG", &llong_ctype, PTYPE_ALL);
predefined_ctype("INT8", &schar_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("UINT8", &uchar_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT16", &short_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("UINT16", &ushort_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT32", int32_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("UINT32", uint32_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT64", int64_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("UINT64", uint64_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_LEAST8", &schar_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_LEAST8", &uchar_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_LEAST16", &short_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_LEAST16",&ushort_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_LEAST32", int32_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_LEAST32", uint32_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_LEAST64", int64_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_LEAST64", uint64_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_FAST8", fast8_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_FAST8", ufast8_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_FAST16", fast16_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_FAST16",ufast16_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_FAST32", fast32_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_FAST32",ufast32_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INT_FAST64", fast64_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINT_FAST64",ufast64_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INTMAX", intmax_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINTMAX", uintmax_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("INTPTR", intptr_ctype, PTYPE_MAX|PTYPE_TYPE|PTYPE_WIDTH);
predefined_ctype("UINTPTR", uintptr_ctype, PTYPE_MAX|PTYPE_TYPE);
predefined_ctype("PTRDIFF", ptrdiff_ctype, PTYPE_ALL_T|PTYPE_TYPE);
predefined_ctype("SIZE", size_t_ctype, PTYPE_ALL_T|PTYPE_TYPE);
predefined_ctype("POINTER", &ptr_ctype, PTYPE_SIZEOF);
predefined_ctype("SIG_ATOMIC", sig_atomic_ctype, PTYPE_MAX|PTYPE_MIN|PTYPE_TYPE|PTYPE_WIDTH);
predefined_sizeof("FLOAT", "", bits_in_float);
predefined_sizeof("DOUBLE", "", bits_in_double);
predefined_sizeof("LONG_DOUBLE", "", bits_in_longdouble);
if (arch_target->has_int128)
predefined_sizeof("INT128", "", 128);
predefine("__ATOMIC_RELAXED", 1, "0");
predefine("__ATOMIC_CONSUME", 1, "1");
predefine("__ATOMIC_ACQUIRE", 1, "3");
predefine("__ATOMIC_RELEASE", 1, "4");
predefine("__ATOMIC_ACQ_REL", 1, "7");
predefine("__ATOMIC_SEQ_CST", 1, "8");
predefine("__ORDER_LITTLE_ENDIAN__", 1, "1234");
predefine("__ORDER_BIG_ENDIAN__", 1, "4321");
predefine("__ORDER_PDP_ENDIAN__", 1, "3412");
if (arch_big_endian) {
predefine("__BIG_ENDIAN__", 1, "1");
predefine("__BYTE_ORDER__", 1, "__ORDER_BIG_ENDIAN__");
} else {
predefine("__LITTLE_ENDIAN__", 1, "1");
predefine("__BYTE_ORDER__", 1, "__ORDER_LITTLE_ENDIAN__");
}
if (optimize_level)
predefine("__OPTIMIZE__", 0, "1");
if (optimize_size)
predefine("__OPTIMIZE_SIZE__", 0, "1");
predefine("__PRAGMA_REDEFINE_EXTNAME", 1, "1");
// Temporary hacks
predefine("__extension__", 0, NULL);
predefine("__pragma__", 0, NULL);
switch (arch_m64) {
case ARCH_LP32:
break;
case ARCH_X32:
predefine("__ILP32__", 1, "1");
predefine("_ILP32", 1, "1");
break;
case ARCH_LP64:
predefine("__LP64__", 1, "1");
predefine("_LP64", 1, "1");
break;
case ARCH_LLP64:
predefine("__LLP64__", 1, "1");
break;
}
if (fpic) {
predefine("__pic__", 0, "%d", fpic);
predefine("__PIC__", 0, "%d", fpic);
}
if (fpie) {
predefine("__pie__", 0, "%d", fpie);
predefine("__PIE__", 0, "%d", fpie);
}
if (arch_target->predefine)
arch_target->predefine(arch_target);
if (arch_os >= OS_UNIX && arch_os != OS_DARWIN) {
predefine("__unix__", 1, "1");
predefine("__unix", 1, "1");
predefine_nostd("unix");
}
switch (arch_os) {
case OS_CYGWIN:
predefine("__CYGWIN__", 1, "1");
if (arch_m64 == ARCH_LP32)
predefine("__CYGWIN32__", 1, "1");
add_pre_buffer("#define __cdecl __attribute__((__cdecl__))\n");
add_pre_buffer("#define __declspec(x) __attribute__((x))\n");
add_pre_buffer("#define __fastcall __attribute__((__fastcall__))\n");
add_pre_buffer("#define __stdcall __attribute__((__stdcall__))\n");
add_pre_buffer("#define __thiscall __attribute__((__thiscall__))\n");
add_pre_buffer("#define _cdecl __attribute__((__cdecl__))\n");
add_pre_buffer("#define _fastcall __attribute__((__fastcall__))\n");
add_pre_buffer("#define _stdcall __attribute__((__stdcall__))\n");
add_pre_buffer("#define _thiscall __attribute__((__thiscall__))\n");
break;
case OS_DARWIN:
predefine("__APPLE__", 1, "1");
predefine("__APPLE_CC__", 1, "1");
predefine("__MACH__", 1, "1");
break;
case OS_FREEBSD:
predefine("__FreeBSD__", 1, "1");
break;
case OS_LINUX:
predefine("__linux__", 1, "1");
predefine("__linux", 1, "1");
break;
case OS_NETBSD:
predefine("__NetBSD__", 1, "1");
break;
case OS_OPENBSD:
predefine("__OpenBSD__", 1, "1");
break;
case OS_SUNOS:
predefine("__sun__", 1, "1");
predefine("__sun", 1, "1");
predefine_nostd("sun");
predefine("__svr4__", 1, "1");
break;
}
}
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