[people/ms/u-boot.git] / include / linker_lists.h

/*
 * include/linker_lists.h
 *
 * Implementation of linker-generated arrays
 *
 * Copyright (C) 2012 Marek Vasut <marex@denx.de>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef __LINKER_LISTS_H__
#define __LINKER_LISTS_H__

#include <linux/compiler.h>

/*
 * There is no use in including this from ASM files.
 * So just don't define anything when included from ASM.
 */

#if !defined(__ASSEMBLY__)

/**
 * A linker list is constructed by grouping together linker input
 * sections, each containing one entry of the list. Each input section
 * contains a constant initialized variable which holds the entry's
 * content. Linker list input sections are constructed from the list
 * and entry names, plus a prefix which allows grouping all lists
 * together. Assuming _list and _entry are the list and entry names,
 * then the corresponding input section name is
 *
 *   .u_boot_list_ + 2_ + @_list + _2_ + @_entry
 *
 * and the C variable name is
 *
 *   _u_boot_list + _2_ + @_list + _2_ + @_entry
 *
 * This ensures uniqueness for both input section and C variable name.
 *
 * Note that the names differ only in the first character, "." for the
 * section and "_" for the variable, so that the linker cannot confuse
 * section and symbol names. From now on, both names will be referred
 * to as
 *
 *   %u_boot_list_ + 2_ + @_list + _2_ + @_entry
 *
 * Entry variables need never be referred to directly.
 *
 * The naming scheme for input sections allows grouping all linker lists
 * into a single linker output section and grouping all entries for a
 * single list.
 *
 * Note the two '_2_' constant components in the names: their presence
 * allows putting a start and end symbols around a list, by mapping
 * these symbols to sections names with components "1" (before) and
 * "3" (after) instead of "2" (within).
 * Start and end symbols for a list can generally be defined as
 *
 *   %u_boot_list_2_ + @_list + _1_...
 *   %u_boot_list_2_ + @_list + _3_...
 *
 * Start and end symbols for the whole of the linker lists area can be
 * defined as
 *
 *   %u_boot_list_1_...
 *   %u_boot_list_3_...
 *
 * Here is an example of the sorted sections which result from a list
 * "array" made up of three entries : "first", "second" and "third",
 * iterated at least once.
 *
 *   .u_boot_list_2_array_1
 *   .u_boot_list_2_array_2_first
 *   .u_boot_list_2_array_2_second
 *   .u_boot_list_2_array_2_third
 *   .u_boot_list_2_array_3
 *
 * If lists must be divided into sublists (e.g. for iterating only on
 * part of a list), one can simply give the list a name of the form
 * 'outer_2_inner', where 'outer' is the global list name and 'inner'
 * is the sub-list name. Iterators for the whole list should use the
 * global list name ("outer"); iterators for only a sub-list should use
 * the full sub-list name ("outer_2_inner").
 *
 * Here is an example of the sections generated from a global list
 * named "drivers", two sub-lists named "i2c" and "pci", and iterators
 * defined for the whole list and each sub-list:
 *
 *   %u_boot_list_2_drivers_1
 *   %u_boot_list_2_drivers_2_i2c_1
 *   %u_boot_list_2_drivers_2_i2c_2_first
 *   %u_boot_list_2_drivers_2_i2c_2_first
 *   %u_boot_list_2_drivers_2_i2c_2_second
 *   %u_boot_list_2_drivers_2_i2c_2_third
 *   %u_boot_list_2_drivers_2_i2c_3
 *   %u_boot_list_2_drivers_2_pci_1
 *   %u_boot_list_2_drivers_2_pci_2_first
 *   %u_boot_list_2_drivers_2_pci_2_second
 *   %u_boot_list_2_drivers_2_pci_2_third
 *   %u_boot_list_2_drivers_2_pci_3
 *   %u_boot_list_2_drivers_3
 */

/**
 * llsym() - Access a linker-generated array entry
 * @_type:	Data type of the entry
 * @_name:	Name of the entry
 * @_list:	name of the list. Should contain only characters allowed
 *		in a C variable name!
 */
#define llsym(_type, _name, _list) \
		((_type *)&_u_boot_list_2_##_list##_2_##_name)

/**
 * ll_entry_declare() - Declare linker-generated array entry
 * @_type:	Data type of the entry
 * @_name:	Name of the entry
 * @_list:	name of the list. Should contain only characters allowed
 *		in a C variable name!
 *
 * This macro declares a variable that is placed into a linker-generated
 * array. This is a basic building block for more advanced use of linker-
 * generated arrays. The user is expected to build their own macro wrapper
 * around this one.
 *
 * A variable declared using this macro must be compile-time initialized.
 *
 * Special precaution must be made when using this macro:
 *
 * 1) The _type must not contain the "static" keyword, otherwise the
 *    entry is generated and can be iterated but is listed in the map
 *    file and cannot be retrieved by name.
 *
 * 2) In case a section is declared that contains some array elements AND
 *    a subsection of this section is declared and contains some elements,
 *    it is imperative that the elements are of the same type.
 *
 * 4) In case an outer section is declared that contains some array elements
 *    AND an inner subsection of this section is declared and contains some
 *    elements, then when traversing the outer section, even the elements of
 *    the inner sections are present in the array.
 *
 * Example:
 * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
 *         .x = 3,
 *         .y = 4,
 * };
 */
#define ll_entry_declare(_type, _name, _list)				\
	_type _u_boot_list_2_##_list##_2_##_name __aligned(4)		\
			__attribute__((unused,				\
			section(".u_boot_list_2_"#_list"_2_"#_name)))

/**
 * ll_entry_declare_list() - Declare a list of link-generated array entries
 * @_type:	Data type of each entry
 * @_name:	Name of the entry
 * @_list:	name of the list. Should contain only characters allowed
 *		in a C variable name!
 *
 * This is like ll_entry_declare() but creates multiple entries. It should
 * be assigned to an array.
 *
 * ll_entry_declare_list(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
 *	{ .x = 3, .y = 4 },
 *	{ .x = 8, .y = 2 },
 *	{ .x = 1, .y = 7 }
 * };
 */
#define ll_entry_declare_list(_type, _name, _list)			\
	_type _u_boot_list_2_##_list##_2_##_name[] __aligned(4)		\
			__attribute__((unused,				\
			section(".u_boot_list_2_"#_list"_2_"#_name)))

/**
 * We need a 0-byte-size type for iterator symbols, and the compiler
 * does not allow defining objects of C type 'void'. Using an empty
 * struct is allowed by the compiler, but causes gcc versions 4.4 and
 * below to complain about aliasing. Therefore we use the next best
 * thing: zero-sized arrays, which are both 0-byte-size and exempt from
 * aliasing warnings.
 */

/**
 * ll_entry_start() - Point to first entry of linker-generated array
 * @_type:	Data type of the entry
 * @_list:	Name of the list in which this entry is placed
 *
 * This function returns (_type *) pointer to the very first entry of a
 * linker-generated array placed into subsection of .u_boot_list section
 * specified by _list argument.
 *
 * Since this macro defines an array start symbol, its leftmost index
 * must be 2 and its rightmost index must be 1.
 *
 * Example:
 * struct my_sub_cmd *msc = ll_entry_start(struct my_sub_cmd, cmd_sub);
 */
#define ll_entry_start(_type, _list)					\
({									\
	static char start[0] __aligned(4) __attribute__((unused,	\
		section(".u_boot_list_2_"#_list"_1")));			\
	(_type *)&start;						\
})

/**
 * ll_entry_end() - Point after last entry of linker-generated array
 * @_type:	Data type of the entry
 * @_list:	Name of the list in which this entry is placed
 *		(with underscores instead of dots)
 *
 * This function returns (_type *) pointer after the very last entry of
 * a linker-generated array placed into subsection of .u_boot_list
 * section specified by _list argument.
 *
 * Since this macro defines an array end symbol, its leftmost index
 * must be 2 and its rightmost index must be 3.
 *
 * Example:
 * struct my_sub_cmd *msc = ll_entry_end(struct my_sub_cmd, cmd_sub);
 */
#define ll_entry_end(_type, _list)					\
({									\
	static char end[0] __aligned(4) __attribute__((unused,		\
		section(".u_boot_list_2_"#_list"_3")));			\
	(_type *)&end;							\
})
/**
 * ll_entry_count() - Return the number of elements in linker-generated array
 * @_type:	Data type of the entry
 * @_list:	Name of the list of which the number of elements is computed
 *
 * This function returns the number of elements of a linker-generated array
 * placed into subsection of .u_boot_list section specified by _list
 * argument. The result is of an unsigned int type.
 *
 * Example:
 * int i;
 * const unsigned int count = ll_entry_count(struct my_sub_cmd, cmd_sub);
 * struct my_sub_cmd *msc = ll_entry_start(struct my_sub_cmd, cmd_sub);
 * for (i = 0; i < count; i++, msc++)
 *         printf("Entry %i, x=%i y=%i\n", i, msc->x, msc->y);
 */
#define ll_entry_count(_type, _list)					\
	({								\
		_type *start = ll_entry_start(_type, _list);		\
		_type *end = ll_entry_end(_type, _list);		\
		unsigned int _ll_result = end - start;			\
		_ll_result;						\
	})

/**
 * ll_entry_get() - Retrieve entry from linker-generated array by name
 * @_type:	Data type of the entry
 * @_name:	Name of the entry
 * @_list:	Name of the list in which this entry is placed
 *
 * This function returns a pointer to a particular entry in linker-generated
 * array identified by the subsection of u_boot_list where the entry resides
 * and it's name.
 *
 * Example:
 * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
 *         .x = 3,
 *         .y = 4,
 * };
 * ...
 * struct my_sub_cmd *c = ll_entry_get(struct my_sub_cmd, my_sub_cmd, cmd_sub);
 */
#define ll_entry_get(_type, _name, _list)				\
	({								\
		extern _type _u_boot_list_2_##_list##_2_##_name;	\
		_type *_ll_result =					\
			&_u_boot_list_2_##_list##_2_##_name;		\
		_ll_result;						\
	})

/**
 * ll_start() - Point to first entry of first linker-generated array
 * @_type:	Data type of the entry
 *
 * This function returns (_type *) pointer to the very first entry of
 * the very first linker-generated array.
 *
 * Since this macro defines the start of the linker-generated arrays,
 * its leftmost index must be 1.
 *
 * Example:
 * struct my_sub_cmd *msc = ll_start(struct my_sub_cmd);
 */
#define ll_start(_type)							\
({									\
	static char start[0] __aligned(4) __attribute__((unused,	\
		section(".u_boot_list_1")));				\
	(_type *)&start;						\
})

/**
 * ll_end() - Point after last entry of last linker-generated array
 * @_type:	Data type of the entry
 *
 * This function returns (_type *) pointer after the very last entry of
 * the very last linker-generated array.
 *
 * Since this macro defines the end of the linker-generated arrays,
 * its leftmost index must be 3.
 *
 * Example:
 * struct my_sub_cmd *msc = ll_end(struct my_sub_cmd);
 */
#define ll_end(_type)							\
({									\
	static char end[0] __aligned(4) __attribute__((unused,		\
		section(".u_boot_list_3")));				\
	(_type *)&end;							\
})

#endif /* __ASSEMBLY__ */

#endif	/* __LINKER_LISTS_H__ */
Commit	Line	Data
42ebaae3 MV	1	/*
	2	* include/linker_lists.h
	3	*
	4	* Implementation of linker-generated arrays
	5	*
	6	* Copyright (C) 2012 Marek Vasut <marex@denx.de>
	7	*
1a459660	8	* SPDX-License-Identifier: GPL-2.0+
42ebaae3	9	*/
ef123c52	10
babb4440 MY	11	#ifndef __LINKER_LISTS_H__
	12	#define __LINKER_LISTS_H__
	13
dc7cb46f MY	14	#include <linux/compiler.h>
dc7cb46f MY	15
ef123c52	16	/*
d72fd7b3	17	* There is no use in including this from ASM files.
ef123c52 AA	18	* So just don't define anything when included from ASM.
	19	*/
	20
	21	#if !defined(__ASSEMBLY__)
	22
	23	/**
	24	* A linker list is constructed by grouping together linker input
44f145fd	25	* sections, each containing one entry of the list. Each input section
ef123c52 AA	26	* contains a constant initialized variable which holds the entry's
	27	* content. Linker list input sections are constructed from the list
	28	* and entry names, plus a prefix which allows grouping all lists
	29	* together. Assuming _list and _entry are the list and entry names,
	30	* then the corresponding input section name is
	31	*
97d5e9d1	32	* .u_boot_list_ + 2_ + @_list + _2_ + @_entry
ef123c52 AA	33	*
	34	* and the C variable name is
	35	*
97d5e9d1	36	* _u_boot_list + _2_ + @_list + _2_ + @_entry
ef123c52 AA	37	*
	38	* This ensures uniqueness for both input section and C variable name.
	39	*
	40	* Note that the names differ only in the first character, "." for the
44f145fd	41	* section and "_" for the variable, so that the linker cannot confuse
ef123c52 AA	42	* section and symbol names. From now on, both names will be referred
	43	* to as
	44	*
	45	* %u_boot_list_ + 2_ + @_list + _2_ + @_entry
	46	*
	47	* Entry variables need never be referred to directly.
	48	*
	49	* The naming scheme for input sections allows grouping all linker lists
	50	* into a single linker output section and grouping all entries for a
	51	* single list.
	52	*
	53	* Note the two '_2_' constant components in the names: their presence
	54	* allows putting a start and end symbols around a list, by mapping
	55	* these symbols to sections names with components "1" (before) and
	56	* "3" (after) instead of "2" (within).
	57	* Start and end symbols for a list can generally be defined as
	58	*
	59	* %u_boot_list_2_ + @_list + _1_...
	60	* %u_boot_list_2_ + @_list + _3_...
	61	*
	62	* Start and end symbols for the whole of the linker lists area can be
	63	* defined as
	64	*
	65	* %u_boot_list_1_...
	66	* %u_boot_list_3_...
	67	*
	68	* Here is an example of the sorted sections which result from a list
	69	* "array" made up of three entries : "first", "second" and "third",
	70	* iterated at least once.
	71	*
	72	* .u_boot_list_2_array_1
	73	* .u_boot_list_2_array_2_first
	74	* .u_boot_list_2_array_2_second
	75	* .u_boot_list_2_array_2_third
	76	* .u_boot_list_2_array_3
	77	*
	78	* If lists must be divided into sublists (e.g. for iterating only on
	79	* part of a list), one can simply give the list a name of the form
	80	* 'outer_2_inner', where 'outer' is the global list name and 'inner'
	81	* is the sub-list name. Iterators for the whole list should use the
	82	* global list name ("outer"); iterators for only a sub-list should use
	83	* the full sub-list name ("outer_2_inner").
	84	*
7e378b8b	85	* Here is an example of the sections generated from a global list
ef123c52 AA	86	* named "drivers", two sub-lists named "i2c" and "pci", and iterators
	87	* defined for the whole list and each sub-list:
	88	*
	89	* %u_boot_list_2_drivers_1
	90	* %u_boot_list_2_drivers_2_i2c_1
	91	* %u_boot_list_2_drivers_2_i2c_2_first
	92	* %u_boot_list_2_drivers_2_i2c_2_first
	93	* %u_boot_list_2_drivers_2_i2c_2_second
	94	* %u_boot_list_2_drivers_2_i2c_2_third
	95	* %u_boot_list_2_drivers_2_i2c_3
	96	* %u_boot_list_2_drivers_2_pci_1
	97	* %u_boot_list_2_drivers_2_pci_2_first
	98	* %u_boot_list_2_drivers_2_pci_2_second
	99	* %u_boot_list_2_drivers_2_pci_2_third
	100	* %u_boot_list_2_drivers_2_pci_3
	101	* %u_boot_list_2_drivers_3
	102	*/
	103
72538f4c	104	/**
7e378b8b	105	* llsym() - Access a linker-generated array entry
72538f4c SG	106	* @_type: Data type of the entry
	107	* @_name: Name of the entry
	108	* @_list: name of the list. Should contain only characters allowed
	109	* in a C variable name!
	110	*/
	111	#define llsym(_type, _name, _list) \
	112	((_type *)&_u_boot_list_2_##_list##_2_##_name)
	113
42ebaae3 MV	114	/**
	115	* ll_entry_declare() - Declare linker-generated array entry
	116	* @_type: Data type of the entry
	117	* @_name: Name of the entry
ef123c52 AA	118	* @_list: name of the list. Should contain only characters allowed
ef123c52 AA	119	* in a C variable name!
42ebaae3 MV	120	*
	121	* This macro declares a variable that is placed into a linker-generated
	122	* array. This is a basic building block for more advanced use of linker-
	123	* generated arrays. The user is expected to build their own macro wrapper
	124	* around this one.
	125	*
ef123c52	126	* A variable declared using this macro must be compile-time initialized.
42ebaae3 MV	127	*
42ebaae3 MV	128	* Special precaution must be made when using this macro:
42ebaae3	129	*
ef123c52 AA	130	* 1) The _type must not contain the "static" keyword, otherwise the
	131	* entry is generated and can be iterated but is listed in the map
	132	* file and cannot be retrieved by name.
42ebaae3	133	*
ef123c52 AA	134	* 2) In case a section is declared that contains some array elements AND
	135	* a subsection of this section is declared and contains some elements,
	136	* it is imperative that the elements are of the same type.
42ebaae3 MV	137	*
42ebaae3 MV	138	* 4) In case an outer section is declared that contains some array elements
ef123c52	139	* AND an inner subsection of this section is declared and contains some
42ebaae3 MV	140	* elements, then when traversing the outer section, even the elements of
	141	* the inner sections are present in the array.
	142	*
	143	* Example:
7e378b8b	144	* ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
42ebaae3 MV	145	* .x = 3,
	146	* .y = 4,
	147	* };
	148	*/
ef123c52 AA	149	#define ll_entry_declare(_type, _name, _list) \
	150	_type _u_boot_list_2_##_list##_2_##_name __aligned(4) \
	151	__attribute__((unused, \
	152	section(".u_boot_list_2_"#_list"_2_"#_name)))
	153
3fcc3af4 SG	154	/**
	155	* ll_entry_declare_list() - Declare a list of link-generated array entries
	156	* @_type: Data type of each entry
	157	* @_name: Name of the entry
	158	* @_list: name of the list. Should contain only characters allowed
	159	* in a C variable name!
	160	*
	161	* This is like ll_entry_declare() but creates multiple entries. It should
	162	* be assigned to an array.
	163	*
7e378b8b	164	* ll_entry_declare_list(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
3fcc3af4 SG	165	* { .x = 3, .y = 4 },
	166	* { .x = 8, .y = 2 },
	167	* { .x = 1, .y = 7 }
	168	* };
	169	*/
	170	#define ll_entry_declare_list(_type, _name, _list) \
	171	_type _u_boot_list_2_##_list##_2_##_name[] __aligned(4) \
	172	__attribute__((unused, \
	173	section(".u_boot_list_2_"#_list"_2_"#_name)))
	174
ef123c52 AA	175	/**
	176	* We need a 0-byte-size type for iterator symbols, and the compiler
	177	* does not allow defining objects of C type 'void'. Using an empty
	178	* struct is allowed by the compiler, but causes gcc versions 4.4 and
	179	* below to complain about aliasing. Therefore we use the next best
	180	* thing: zero-sized arrays, which are both 0-byte-size and exempt from
	181	* aliasing warnings.
	182	*/
42ebaae3 MV	183
	184	/**
	185	* ll_entry_start() - Point to first entry of linker-generated array
	186	* @_type: Data type of the entry
ef123c52	187	* @_list: Name of the list in which this entry is placed
42ebaae3 MV	188	*
	189	* This function returns (_type *) pointer to the very first entry of a
	190	* linker-generated array placed into subsection of .u_boot_list section
ef123c52 AA	191	* specified by _list argument.
	192	*
	193	* Since this macro defines an array start symbol, its leftmost index
	194	* must be 2 and its rightmost index must be 1.
42ebaae3 MV	195	*
	196	* Example:
	197	* struct my_sub_cmd *msc = ll_entry_start(struct my_sub_cmd, cmd_sub);
	198	*/
ef123c52 AA	199	#define ll_entry_start(_type, _list) \
	200	({ \
	201	static char start[0] __aligned(4) __attribute__((unused, \
	202	section(".u_boot_list_2_"#_list"_1"))); \
	203	(_type *)&start; \
	204	})
42ebaae3 MV	205
42ebaae3 MV	206	/**
ef123c52	207	* ll_entry_end() - Point after last entry of linker-generated array
42ebaae3	208	* @_type: Data type of the entry
ef123c52	209	* @_list: Name of the list in which this entry is placed
42ebaae3 MV	210	* (with underscores instead of dots)
42ebaae3 MV	211	*
ef123c52 AA	212	* This function returns (_type *) pointer after the very last entry of
	213	* a linker-generated array placed into subsection of .u_boot_list
	214	* section specified by _list argument.
	215	*
	216	* Since this macro defines an array end symbol, its leftmost index
	217	* must be 2 and its rightmost index must be 3.
	218	*
	219	* Example:
	220	* struct my_sub_cmd *msc = ll_entry_end(struct my_sub_cmd, cmd_sub);
	221	*/
	222	#define ll_entry_end(_type, _list) \
	223	({ \
7e378b8b	224	static char end[0] __aligned(4) __attribute__((unused, \
ef123c52 AA	225	section(".u_boot_list_2_"#_list"_3"))); \
	226	(_type *)&end; \
	227	})
	228	/**
	229	* ll_entry_count() - Return the number of elements in linker-generated array
	230	* @_type: Data type of the entry
	231	* @_list: Name of the list of which the number of elements is computed
	232	*
42ebaae3	233	* This function returns the number of elements of a linker-generated array
ef123c52	234	* placed into subsection of .u_boot_list section specified by _list
42ebaae3 MV	235	* argument. The result is of an unsigned int type.
	236	*
	237	* Example:
	238	* int i;
	239	* const unsigned int count = ll_entry_count(struct my_sub_cmd, cmd_sub);
	240	* struct my_sub_cmd *msc = ll_entry_start(struct my_sub_cmd, cmd_sub);
	241	* for (i = 0; i < count; i++, msc++)
	242	* printf("Entry %i, x=%i y=%i\n", i, msc->x, msc->y);
	243	*/
ef123c52	244	#define ll_entry_count(_type, _list) \
42ebaae3	245	({ \
ef123c52 AA	246	_type *start = ll_entry_start(_type, _list); \
	247	_type *end = ll_entry_end(_type, _list); \
	248	unsigned int _ll_result = end - start; \
42ebaae3 MV	249	_ll_result; \
	250	})
	251
42ebaae3 MV	252	/**
	253	* ll_entry_get() - Retrieve entry from linker-generated array by name
	254	* @_type: Data type of the entry
	255	* @_name: Name of the entry
ef123c52	256	* @_list: Name of the list in which this entry is placed
42ebaae3	257	*
7e378b8b BM	258	* This function returns a pointer to a particular entry in linker-generated
7e378b8b BM	259	* array identified by the subsection of u_boot_list where the entry resides
42ebaae3 MV	260	* and it's name.
	261	*
	262	* Example:
af41d6b4	263	* ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
42ebaae3 MV	264	* .x = 3,
	265	* .y = 4,
	266	* };
	267	* ...
	268	* struct my_sub_cmd *c = ll_entry_get(struct my_sub_cmd, my_sub_cmd, cmd_sub);
	269	*/
ef123c52	270	#define ll_entry_get(_type, _name, _list) \
42ebaae3	271	({ \
ef123c52 AA	272	extern _type _u_boot_list_2_##_list##_2_##_name; \
ef123c52 AA	273	_type *_ll_result = \
7e378b8b	274	&_u_boot_list_2_##_list##_2_##_name; \
42ebaae3 MV	275	_ll_result; \
	276	})
	277
ef123c52 AA	278	/**
	279	* ll_start() - Point to first entry of first linker-generated array
	280	* @_type: Data type of the entry
	281	*
	282	* This function returns (_type *) pointer to the very first entry of
	283	* the very first linker-generated array.
	284	*
	285	* Since this macro defines the start of the linker-generated arrays,
	286	* its leftmost index must be 1.
	287	*
	288	* Example:
	289	* struct my_sub_cmd *msc = ll_start(struct my_sub_cmd);
	290	*/
	291	#define ll_start(_type) \
	292	({ \
	293	static char start[0] __aligned(4) __attribute__((unused, \
	294	section(".u_boot_list_1"))); \
	295	(_type *)&start; \
	296	})
	297
	298	/**
7e378b8b	299	* ll_end() - Point after last entry of last linker-generated array
ef123c52 AA	300	* @_type: Data type of the entry
	301	*
	302	* This function returns (_type *) pointer after the very last entry of
	303	* the very last linker-generated array.
	304	*
	305	* Since this macro defines the end of the linker-generated arrays,
	306	* its leftmost index must be 3.
	307	*
	308	* Example:
	309	* struct my_sub_cmd *msc = ll_end(struct my_sub_cmd);
	310	*/
	311	#define ll_end(_type) \
	312	({ \
7e378b8b	313	static char end[0] __aligned(4) __attribute__((unused, \
ef123c52 AA	314	section(".u_boot_list_3"))); \
	315	(_type *)&end; \
	316	})
	317
	318	#endif /* __ASSEMBLY__ */
	319
42ebaae3	320	#endif /* __LINKER_LISTS_H__ */