/**************************************************************************************
* Copyright (c) 2016-2017, ARM Limited or its affiliates. All rights reserved         *
*                                                                                     *
* This file and the related binary are licensed under the following license:          *
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* ARM Object Code and Header Files License, v1.0 Redistribution.                      *
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#ifndef __SSI_PAL_COMPILER_H__
#define __SSI_PAL_COMPILER_H__

/*!
@file
@brief This file contains compiler related definitions.

*/

#ifdef __GNUC__

/************************ Defines ******************************/

/*! Associate a symbol with a link section. */
#define SASI_PAL_COMPILER_SECTION(sectionName)  __attribute__((section(sectionName)))

/*! Mark symbol as used, i.e., prevent garbage collector from dropping it. */
#define SASI_PAL_COMPILER_KEEP_SYMBOL __attribute__((used))

/*! Make given data item aligned (alignment in bytes). */
#define SASI_PAL_COMPILER_ALIGN(alignement)  __attribute__((aligned(alignement)))

/*! Mark function that never returns. */
#define SASI_PAL_COMPILER_FUNC_NEVER_RETURNS __attribute__((noreturn))

/*! Prevent function from being inlined */
#define SASI_PAL_COMPILER_FUNC_DONT_INLINE __attribute__((noinline))

/*! Given data type may cast (alias) another data type pointer. */
/* (this is used for "superclass" struct casting)             */
#define SASI_PAL_COMPILER_TYPE_MAY_ALIAS __attribute__((__may_alias__))

/*! Get sizeof for a structure type member. */
#define SASI_PAL_COMPILER_SIZEOF_STRUCT_MEMBER(type_name, member_name) \
	sizeof(((type_name *)0)->member_name)

/*! Assertion. */
#define SASI_ASSERT_CONCAT_(a, b) a##b
#define SASI_ASSERT_CONCAT(a, b) SASI_ASSERT_CONCAT_(a, b)
#define SASI_PAL_COMPILER_ASSERT(cond, message) \
	enum { SASI_ASSERT_CONCAT(assert_line_, __LINE__) = 1/(!!(cond)) }

#elif defined(__ARM_DSM__) || defined(__CC_ARM)
#define inline
/*! Associate a symbol with a link section. */
#define SASI_PAL_COMPILER_SECTION(sectionName)  __attribute__((section(sectionName)))

/*! Mark symbol as used, i.e., prevent garbage collector from dropping it. */
#define SASI_PAL_COMPILER_KEEP_SYMBOL __attribute__((used))

/*! Make given data item aligned (alignment in bytes). */
#define SASI_PAL_COMPILER_ALIGN(alignement)  __attribute__((aligned(alignement)))

/*! Mark function that never returns. */
#define SASI_PAL_COMPILER_FUNC_NEVER_RETURNS __attribute__((noreturn))

/*! Prevent function from being inlined. */
#define SASI_PAL_COMPILER_FUNC_DONT_INLINE __attribute__((noinline))

/*! Given data type may cast (alias) another data type pointer. */
/* (this is used for "superclass" struct casting)             */
#define SASI_PAL_COMPILER_TYPE_MAY_ALIAS __attribute__((__may_alias__))

/*! Get sizeof for a structure type member. */
#define SASI_PAL_COMPILER_SIZEOF_STRUCT_MEMBER(type_name, member_name) \
	sizeof(((type_name *)0)->member_name)

/*! Assertion. */
#define SASI_ASSERT_CONCAT_(a, b) a##b
#define SASI_ASSERT_CONCAT(a, b) SASI_ASSERT_CONCAT_(a, b)
#define SASI_PAL_COMPILER_ASSERT(cond, message) \
	enum { SASI_ASSERT_CONCAT(assert_line_, __LINE__) = 1/(!!(cond)) }
#elif defined(__ARM_DS__)
#define inline
/*! Associate a symbol with a link section. */
#define SASI_PAL_COMPILER_SECTION(sectionName)  __attribute__((section(sectionName)))

/*! Mark symbol as used, i.e., prevent garbage collector from dropping it. */
#define SASI_PAL_COMPILER_KEEP_SYMBOL __attribute__((used))

/*! Make given data item aligned (alignment in bytes). */
#define SASI_PAL_COMPILER_ALIGN(alignement)  __attribute__((aligned(alignement)))

/*! Mark function that never returns. */
#define SASI_PAL_COMPILER_FUNC_NEVER_RETURNS __attribute__((noreturn))

/*! Prevent function from being inlined. */
#define SASI_PAL_COMPILER_FUNC_DONT_INLINE __attribute__((noinline))

/*! Given data type may cast (alias) another data type pointer. */
/* (this is used for "superclass" struct casting)             */
#define SASI_PAL_COMPILER_TYPE_MAY_ALIAS

/*! Get sizeof for a structure type member. */
#define SASI_PAL_COMPILER_SIZEOF_STRUCT_MEMBER(type_name, member_name) \
	sizeof(((type_name *)0)->member_name)

/*! Assertion. */
#define SASI_ASSERT_CONCAT_(a, b) a##b
#define SASI_ASSERT_CONCAT(a, b) SASI_ASSERT_CONCAT_(a, b)
#define SASI_PAL_COMPILER_ASSERT(cond, message) \
	enum { SASI_ASSERT_CONCAT(assert_line_, __LINE__) = 1/(!!(cond)) }
#elif defined(__ICCARM__)

/************************ Defines ******************************/

/*! Associate a symbol with a link section. */
#define SASI_PAL_COMPILER_SECTION(sectionName)  __attribute__((section(sectionName)))

/*! Mark symbol as used, i.e., prevent garbage collector from dropping it. */
#define SASI_PAL_COMPILER_KEEP_SYMBOL __attribute__((used))


#define STRING_PRAGMA(x) _Pragma(#x)
/*! Make given data item aligned (alignment in bytes).  Not implemented */
/*  Used in crys_rsa_types.h. This is telling the compiler about buffer alignment. */
/*  IAR treats alignment a bit different. Nonetheless, this is used only for RSA, which was not ported yet. */
#define SASI_PAL_COMPILER_ALIGN(n)

/*! Mark function that never returns. Not implemented. */
/*  Not used anywhere, and probably located due to legacy reasons.*/
#define SASI_PAL_COMPILER_FUNC_NEVER_RETURNS

/* Prevent function from being inlined */
#define SASI_PAL_COMPILER_FUNC_DONT_INLINE STRING_PRAGMA(optimize = no_inline)

/*! Given data type may cast (alias) another data type pointer. */
/* (this is used for "superclass" struct casting). Not implemented */
/* Used in crys_rsa_local.h. for some compilers it translates to __may_alias__. */
/* For IAR, there is probably no need for this attribute, as the typedef  */
/* is equivalent. Nonetheless, this is RSA code, which was not yet ported to Mbed TLS.*/
#define SASI_PAL_COMPILER_TYPE_MAY_ALIAS 

/*! Get sizeof for a structure type member. */
#define SASI_PAL_COMPILER_SIZEOF_STRUCT_MEMBER(type_name, member_name) \
	sizeof(((type_name *)0)->member_name)

/*! Assertion. */
#define SASI_ASSERT_CONCAT_(a, b) a##b
#define SASI_ASSERT_CONCAT(a, b) SASI_ASSERT_CONCAT_(a, b)

#define SASI_PAL_COMPILER_ASSERT(cond, message) \
	enum { SASI_ASSERT_CONCAT(assert_line_, __LINE__) = 1/(!!(cond)) }
#else
#error Unsupported compiler.
#endif
#endif /*__SSI_PAL_COMPILER_H__*/