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Diffstat (limited to 'tinyusb/src/common/tusb_compiler.h')
| -rwxr-xr-x | tinyusb/src/common/tusb_compiler.h | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/tinyusb/src/common/tusb_compiler.h b/tinyusb/src/common/tusb_compiler.h new file mode 100755 index 00000000..d3adbbc2 --- /dev/null +++ b/tinyusb/src/common/tusb_compiler.h @@ -0,0 +1,215 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +/** \ingroup Group_Common + * \defgroup Group_Compiler Compiler + * \brief Group_Compiler brief + * @{ */ + +#ifndef _TUSB_COMPILER_H_ +#define _TUSB_COMPILER_H_ + +#define TU_STRING(x) #x ///< stringify without expand +#define TU_XSTRING(x) TU_STRING(x) ///< expand then stringify + +#define TU_STRCAT(a, b) a##b ///< concat without expand +#define TU_STRCAT3(a, b, c) a##b##c ///< concat without expand + +#define TU_XSTRCAT(a, b) TU_STRCAT(a, b) ///< expand then concat +#define TU_XSTRCAT3(a, b, c) TU_STRCAT3(a, b, c) ///< expand then concat 3 tokens + +#if defined __COUNTER__ && __COUNTER__ != __COUNTER__ + #define _TU_COUNTER_ __COUNTER__ +#else + #define _TU_COUNTER_ __LINE__ +#endif + +// Compile-time Assert +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L + #define TU_VERIFY_STATIC _Static_assert +#elif defined (__cplusplus) && __cplusplus >= 201103L + #define TU_VERIFY_STATIC static_assert +#elif defined(__CCRX__) + #define TU_VERIFY_STATIC(const_expr, _mess) typedef char TU_XSTRCAT(Line, __LINE__)[(const_expr) ? 1 : 0]; +#else + #define TU_VERIFY_STATIC(const_expr, _mess) enum { TU_XSTRCAT(_verify_static_, _TU_COUNTER_) = 1/(!!(const_expr)) } +#endif + +// for declaration of reserved field, make use of _TU_COUNTER_ +#define TU_RESERVED TU_XSTRCAT(reserved, _TU_COUNTER_) + +#define TU_LITTLE_ENDIAN (0x12u) +#define TU_BIG_ENDIAN (0x21u) + +//--------------------------------------------------------------------+ +// Compiler porting with Attribute and Endian +//--------------------------------------------------------------------+ + +// TODO refactor since __attribute__ is supported across many compiler +#if defined(__GNUC__) + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) // Function/Variable is meant to be used + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // Endian conversion use well-known host to network (big endian) naming + #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) + #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + + // List of obsolete callback function that is renamed and should not be defined. + // Put it here since only gcc support this pragma + #pragma GCC poison tud_vendor_control_request_cb + +#elif defined(__TI_COMPILER_VERSION__) + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // __BYTE_ORDER is defined in the TI ARM compiler, but not MSP430 (which is little endian) + #if ((__BYTE_ORDER__) == (__ORDER_LITTLE_ENDIAN__)) || defined(__MSP430__) + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) + #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + +#elif defined(__ICCARM__) + #include <intrinsics.h> + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) // Function/Variable is meant to be used + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // Endian conversion use well-known host to network (big endian) naming + #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__iar_builtin_REV16(u16)) + #define TU_BSWAP32(u32) (__iar_builtin_REV(u32)) + +#elif defined(__CCRX__) + #define TU_ATTR_ALIGNED(Bytes) + #define TU_ATTR_SECTION(sec_name) + #define TU_ATTR_PACKED + #define TU_ATTR_WEAK + #define TU_ATTR_ALWAYS_INLINE + #define TU_ATTR_DEPRECATED(mess) + #define TU_ATTR_UNUSED + #define TU_ATTR_USED + + #define TU_ATTR_PACKED_BEGIN _Pragma("pack") + #define TU_ATTR_PACKED_END _Pragma("packoption") + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN _Pragma("bit_order right") + #define TU_ATTR_BIT_FIELD_ORDER_END _Pragma("bit_order") + + // Endian conversion use well-known host to network (big endian) naming + #if defined(__LIT) + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) ((unsigned short)_builtin_revw((unsigned long)u16)) + #define TU_BSWAP32(u32) (_builtin_revl(u32)) + +#else + #error "Compiler attribute porting is required" +#endif + +#if (TU_BYTE_ORDER == TU_LITTLE_ENDIAN) + + #define tu_htons(u16) (TU_BSWAP16(u16)) + #define tu_ntohs(u16) (TU_BSWAP16(u16)) + + #define tu_htonl(u32) (TU_BSWAP32(u32)) + #define tu_ntohl(u32) (TU_BSWAP32(u32)) + + #define tu_htole16(u16) (u16) + #define tu_le16toh(u16) (u16) + + #define tu_htole32(u32) (u32) + #define tu_le32toh(u32) (u32) + +#elif (TU_BYTE_ORDER == TU_BIG_ENDIAN) + + #define tu_htons(u16) (u16) + #define tu_ntohs(u16) (u16) + + #define tu_htonl(u32) (u32) + #define tu_ntohl(u32) (u32) + + #define tu_htole16(u16) (TU_BSWAP16(u16)) + #define tu_le16toh(u16) (TU_BSWAP16(u16)) + + #define tu_htole32(u32) (TU_BSWAP32(u32)) + #define tu_le32toh(u32) (TU_BSWAP32(u32)) + +#else + #error Byte order is undefined +#endif + +#endif /* _TUSB_COMPILER_H_ */ + +/// @} |