compiler.h

#pragma once
 
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT PACKED(struct)
#endif
 
#ifndef __PACKED_UNION
#define __PACKED_UNION PACKED(union)
#endif
 
#if defined(__ICCARM__) || defined(__IAR_SYSTEMS_ASM__)
 
#ifndef __WEAK
#define __WEAK __weak
#endif
 
#define QUOTE_(a) #a
 
#define PACKED(decl) __packed decl
 
#define SECTION(name) _Pragma(QUOTE_(location = name))
 
#define ALIGN_DEF(v) _Pragma(QUOTE_(data_alignment = v))
 
#define NO_INIT(var) __no_init var
 
#else
#ifdef __GNUC__
 
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
 
#define PACKED(decl)  decl __attribute__((packed))
 
#define SECTION(name) __attribute__((section(name)))
 
#define ALIGN_DEF(N)  __attribute__((aligned(N)))
 
#define NO_INIT(var)  var __attribute__((section(".noinit")))
 
#else
#ifdef __CC_ARM
 
#ifndef __WEAK
#define __WEAK __weak
#endif
 
#define PACKED(decl)  decl __attribute__((packed))
 
#define SECTION(name) __attribute__((section(name)))
 
#define ALIGN_DEF(N)  __attribute__((aligned(N)))
 
#define NO_INIT(var)  var __attribute__((section("NoInit")))
 
#else
 
#error Neither ICCARM, CC ARM nor GNUC C detected. Define your macros.
 
#endif
#endif
#endif