mirror of https://repo.or.cz/tinycc.git
334 lines
11 KiB
C
334 lines
11 KiB
C
/* tccdefs.h
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Nothing is defined before this file except target machine, target os
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and the few things related to option settings in tccpp.c:tcc_predefs().
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This file is either included at runtime as is, or converted and
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included as C-strings at compile-time (depending on CONFIG_TCC_PREDEFS).
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Note that line indent matters:
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- in lines starting at column 1, platform macros are replaced by
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corresponding TCC target compile-time macros. See conftest.c for
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the list of platform macros supported in lines starting at column 1.
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- only lines indented >= 4 are actually included into the executable,
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check tccdefs_.h.
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*/
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#if __SIZEOF_POINTER__ == 4
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/* 32bit systems. */
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#if defined __OpenBSD__
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#define __SIZE_TYPE__ unsigned long
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#define __PTRDIFF_TYPE__ long
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#else
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#define __SIZE_TYPE__ unsigned int
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#define __PTRDIFF_TYPE__ int
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#endif
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#define __ILP32__ 1
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#define __INT64_TYPE__ long long
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#elif __SIZEOF_LONG__ == 4
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/* 64bit Windows. */
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#define __SIZE_TYPE__ unsigned long long
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#define __PTRDIFF_TYPE__ long long
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#define __LLP64__ 1
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#define __INT64_TYPE__ long long
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#else
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/* Other 64bit systems. */
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#define __SIZE_TYPE__ unsigned long
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#define __PTRDIFF_TYPE__ long
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#define __LP64__ 1
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# if defined __linux__
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#define __INT64_TYPE__ long
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# else /* APPLE, BSD */
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#define __INT64_TYPE__ long long
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# endif
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#endif
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#define __SIZEOF_INT__ 4
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#define __INT_MAX__ 0x7fffffff
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#if __SIZEOF_LONG__ == 4
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#define __LONG_MAX__ 0x7fffffffL
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#else
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#define __LONG_MAX__ 0x7fffffffffffffffL
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#endif
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#define __SIZEOF_LONG_LONG__ 8
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#define __LONG_LONG_MAX__ 0x7fffffffffffffffLL
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#define __CHAR_BIT__ 8
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#define __ORDER_LITTLE_ENDIAN__ 1234
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#define __ORDER_BIG_ENDIAN__ 4321
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#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
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#if defined _WIN32
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#define __WCHAR_TYPE__ unsigned short
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#define __WINT_TYPE__ unsigned short
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#elif defined __linux__
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#define __WCHAR_TYPE__ int
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#define __WINT_TYPE__ unsigned int
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#else
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#define __WCHAR_TYPE__ int
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#define __WINT_TYPE__ int
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#endif
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#if __STDC_VERSION__ >= 201112L
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# define __STDC_NO_ATOMICS__ 1
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# define __STDC_NO_COMPLEX__ 1
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# define __STDC_NO_THREADS__ 1
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#if !defined _WIN32
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# define __STDC_UTF_16__ 1
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# define __STDC_UTF_32__ 1
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#endif
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#endif
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#if defined _WIN32
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#define __declspec(x) __attribute__((x))
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#define __cdecl
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#elif defined __FreeBSD__
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#define __GNUC__ 9
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#define __GNUC_MINOR__ 3
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#define __GNUC_PATCHLEVEL__ 0
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#define __GNUC_STDC_INLINE__ 1
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#define __NO_TLS 1
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#define __RUNETYPE_INTERNAL 1
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# if __SIZEOF_POINTER__ == 8
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/* FIXME, __int128_t is used by setjump */
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#define __int128_t struct { unsigned char _dummy[16] __attribute((aligned(16))); }
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#define __SIZEOF_SIZE_T__ 8
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#define __SIZEOF_PTRDIFF_T__ 8
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#else
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#define __SIZEOF_SIZE_T__ 4
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#define __SIZEOF_PTRDIFF_T__ 4
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# endif
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#elif defined __FreeBSD_kernel__
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#elif defined __NetBSD__
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#define __GNUC__ 4
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#define __GNUC_MINOR__ 1
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#define __GNUC_PATCHLEVEL__ 0
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#define _Pragma(x)
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#define __ELF__ 1
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#if defined __aarch64__
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#define _LOCORE /* avoids usage of __asm */
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#endif
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#elif defined __OpenBSD__
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#define __GNUC__ 4
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#define _ANSI_LIBRARY 1
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#elif defined __APPLE__
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/* emulate APPLE-GCC to make libc's headerfiles compile: */
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#define __GNUC__ 4 /* darwin emits warning on GCC<4 */
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#define __APPLE_CC__ 1 /* for <TargetConditionals.h> */
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#define __LITTLE_ENDIAN__ 1
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#define _DONT_USE_CTYPE_INLINE_ 1
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/* avoids usage of GCC/clang specific builtins in libc-headerfiles: */
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#define __FINITE_MATH_ONLY__ 1
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#define _FORTIFY_SOURCE 0
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//#define __has_builtin(x) 0
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#elif defined __ANDROID__
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#define BIONIC_IOCTL_NO_SIGNEDNESS_OVERLOAD
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#else
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/* Linux */
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#endif
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/* Some derived integer types needed to get stdint.h to compile correctly on some platforms */
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#ifndef __NetBSD__
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#define __UINTPTR_TYPE__ unsigned __PTRDIFF_TYPE__
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#define __INTPTR_TYPE__ __PTRDIFF_TYPE__
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#endif
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#define __INT32_TYPE__ int
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#if !defined _WIN32
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/* glibc defines. We do not support __USER_NAME_PREFIX__ */
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#define __REDIRECT(name, proto, alias) name proto __asm__ (#alias)
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#define __REDIRECT_NTH(name, proto, alias) name proto __asm__ (#alias) __THROW
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#define __REDIRECT_NTHNL(name, proto, alias) name proto __asm__ (#alias) __THROWNL
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#endif
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/* not implemented */
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#define __PRETTY_FUNCTION__ __FUNCTION__
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#define __has_builtin(x) 0
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#define __has_feature(x) 0
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/* C23 Keywords */
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#define _Nonnull
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#define _Nullable
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#define _Nullable_result
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#define _Null_unspecified
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/* skip __builtin... with -E */
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#ifndef __TCC_PP__
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#define __builtin_offsetof(type, field) ((__SIZE_TYPE__)&((type*)0)->field)
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#define __builtin_extract_return_addr(x) x
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#if !defined __linux__ && !defined _WIN32
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/* used by math.h */
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#define __builtin_huge_val() 1e500
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#define __builtin_huge_valf() 1e50f
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#define __builtin_huge_vall() 1e5000L
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# if defined __APPLE__
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#define __builtin_nanf(ignored_string) (0.0F/0.0F)
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/* used by floats.h to implement FLT_ROUNDS C99 macro. 1 == to nearest */
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#define __builtin_flt_rounds() 1
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/* used by _fd_def.h */
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#define __builtin_bzero(p, ignored_size) bzero(p, sizeof(*(p)))
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# else
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#define __builtin_nanf(ignored_string) (0.0F/0.0F)
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# endif
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#endif
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/* __builtin_va_list */
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#if defined __x86_64__
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#if !defined _WIN32
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/* GCC compatible definition of va_list. */
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/* This should be in sync with the declaration in our lib/libtcc1.c */
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typedef struct {
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unsigned gp_offset, fp_offset;
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union {
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unsigned overflow_offset;
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char *overflow_arg_area;
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};
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char *reg_save_area;
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} __builtin_va_list[1];
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void *__va_arg(__builtin_va_list ap, int arg_type, int size, int align);
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#define __builtin_va_start(ap, last) \
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(*(ap) = *(__builtin_va_list)((char*)__builtin_frame_address(0) - 24))
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#define __builtin_va_arg(ap, t) \
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(*(t *)(__va_arg(ap, __builtin_va_arg_types(t), sizeof(t), __alignof__(t))))
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#define __builtin_va_copy(dest, src) (*(dest) = *(src))
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#else /* _WIN64 */
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typedef char *__builtin_va_list;
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#define __builtin_va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \
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? **(t **)((ap += 8) - 8) : *(t *)((ap += 8) - 8))
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#endif
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#elif defined __arm__
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typedef char *__builtin_va_list;
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#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)
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#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \
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& ~(_tcc_alignof(type) - 1))
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#define __builtin_va_start(ap,last) (ap = ((char *)&(last)) + ((sizeof(last)+3)&~3))
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#define __builtin_va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \
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&~3), *(type *)(ap - ((sizeof(type)+3)&~3)))
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#elif defined __aarch64__
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#if defined __APPLE__
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typedef struct {
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void *__stack;
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} __builtin_va_list;
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#else
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typedef struct {
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void *__stack, *__gr_top, *__vr_top;
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int __gr_offs, __vr_offs;
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} __builtin_va_list;
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#endif
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#elif defined __riscv
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typedef char *__builtin_va_list;
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#define __va_reg_size (__riscv_xlen >> 3)
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#define _tcc_align(addr,type) (((unsigned long)addr + __alignof__(type) - 1) \
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& -(__alignof__(type)))
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#define __builtin_va_arg(ap,type) (*(sizeof(type) > (2*__va_reg_size) ? *(type **)((ap += __va_reg_size) - __va_reg_size) : (ap = (va_list)(_tcc_align(ap,type) + (sizeof(type)+__va_reg_size - 1)& -__va_reg_size), (type *)(ap - ((sizeof(type)+ __va_reg_size - 1)& -__va_reg_size)))))
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#else /* __i386__ */
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typedef char *__builtin_va_list;
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#define __builtin_va_start(ap,last) (ap = ((char *)&(last)) + ((sizeof(last)+3)&~3))
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#define __builtin_va_arg(ap,t) (*(t*)((ap+=(sizeof(t)+3)&~3)-((sizeof(t)+3)&~3)))
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#endif
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#define __builtin_va_end(ap) (void)(ap)
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#ifndef __builtin_va_copy
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# define __builtin_va_copy(dest, src) (dest) = (src)
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#endif
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/* TCC BBUILTIN AND BOUNDS ALIASES */
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#ifdef __leading_underscore
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# define __RENAME(X) __asm__("_"X)
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#else
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# define __RENAME(X) __asm__(X)
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#endif
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#ifdef __TCC_BCHECK__
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# define __BUILTINBC(ret,name,params) ret __builtin_##name params __RENAME("__bound_"#name);
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# define __BOUND(ret,name,params) ret name params __RENAME("__bound_"#name);
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#else
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# define __BUILTINBC(ret,name,params) ret __builtin_##name params __RENAME(#name);
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# define __BOUND(ret,name,params)
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#endif
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#ifdef _WIN32
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#define __BOTH __BOUND
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#define __BUILTIN(ret,name,params)
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#else
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#define __BOTH(ret,name,params) __BUILTINBC(ret,name,params)__BOUND(ret,name,params)
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#define __BUILTIN(ret,name,params) ret __builtin_##name params __RENAME(#name);
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#endif
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__BOTH(void*, memcpy, (void *, const void*, __SIZE_TYPE__))
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__BOTH(void*, memmove, (void *, const void*, __SIZE_TYPE__))
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__BOTH(void*, memset, (void *, int, __SIZE_TYPE__))
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__BOTH(int, memcmp, (const void *, const void*, __SIZE_TYPE__))
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__BOTH(__SIZE_TYPE__, strlen, (const char *))
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__BOTH(char*, strcpy, (char *, const char *))
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__BOTH(char*, strncpy, (char *, const char*, __SIZE_TYPE__))
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__BOTH(int, strcmp, (const char*, const char*))
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__BOTH(int, strncmp, (const char*, const char*, __SIZE_TYPE__))
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__BOTH(char*, strcat, (char*, const char*))
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__BOTH(char*, strncat, (char*, const char*, __SIZE_TYPE__))
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__BOTH(char*, strchr, (const char*, int))
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__BOTH(char*, strrchr, (const char*, int))
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__BOTH(char*, strdup, (const char*))
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#if defined __ARM_EABI__
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__BOUND(void*,__aeabi_memcpy,(void*,const void*,__SIZE_TYPE__))
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__BOUND(void*,__aeabi_memmove,(void*,const void*,__SIZE_TYPE__))
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__BOUND(void*,__aeabi_memmove4,(void*,const void*,__SIZE_TYPE__))
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__BOUND(void*,__aeabi_memmove8,(void*,const void*,__SIZE_TYPE__))
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__BOUND(void*,__aeabi_memset,(void*,int,__SIZE_TYPE__))
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#endif
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#if defined __linux__ || defined __APPLE__ // HAVE MALLOC_REDIR
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#define __MAYBE_REDIR __BUILTIN
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#else
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#define __MAYBE_REDIR __BOTH
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#endif
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__MAYBE_REDIR(void*, malloc, (__SIZE_TYPE__))
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__MAYBE_REDIR(void*, realloc, (void *, __SIZE_TYPE__))
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__MAYBE_REDIR(void*, calloc, (__SIZE_TYPE__, __SIZE_TYPE__))
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__MAYBE_REDIR(void*, memalign, (__SIZE_TYPE__, __SIZE_TYPE__))
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__MAYBE_REDIR(void, free, (void*))
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#if defined __i386__ || defined __x86_64__
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__BOTH(void*, alloca, (__SIZE_TYPE__))
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#else
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__BUILTIN(void*, alloca, (__SIZE_TYPE__))
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#endif
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__BUILTIN(void, abort, (void))
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__BOUND(void, longjmp, ())
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#if !defined _WIN32
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__BOUND(void*, mmap, ())
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__BOUND(int, munmap, ())
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#endif
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#undef __BUILTINBC
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#undef __BUILTIN
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#undef __BOUND
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#undef __BOTH
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#undef __MAYBE_REDIR
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#undef __RENAME
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#define __BUILTIN_EXTERN(name,u) \
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int __builtin_##name(u int); \
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int __builtin_##name##l(u long); \
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int __builtin_##name##ll(u long long);
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__BUILTIN_EXTERN(ffs,)
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__BUILTIN_EXTERN(clz, unsigned)
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__BUILTIN_EXTERN(ctz, unsigned)
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__BUILTIN_EXTERN(clrsb,)
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__BUILTIN_EXTERN(popcount, unsigned)
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__BUILTIN_EXTERN(parity, unsigned)
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#undef __BUILTIN_EXTERN
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#endif /* ndef __TCC_PP__ */
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