X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Flinker_lists.h;h=b22d169d97966766122dd41a6e0c3aa573c0ec04;hb=6bfe80e754d7e2841316429f091ed3b68f6cf5a2;hp=557e6273adb391133d2cd5dc06695f69060ca732;hpb=a26acb7dc946b2fe7fa25736928878f6adf88f46;p=u-boot diff --git a/include/linker_lists.h b/include/linker_lists.h index 557e6273ad..b22d169d97 100644 --- a/include/linker_lists.h +++ b/include/linker_lists.h @@ -11,6 +11,8 @@ #ifndef __LINKER_LISTS_H__ #define __LINKER_LISTS_H__ +#include + /* * There is no use in including this from ASM files, but that happens * anyway, e.g. PPC kgdb.S includes command.h which incluse us. @@ -21,23 +23,23 @@ /** * A linker list is constructed by grouping together linker input - * sections, each containning one entry of the list. Each input section + * 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 + * .u_boot_list_ + 2_ + @_list + _2_ + @_entry * * and the C variable name is * - * .u_boot_list_ + 2_ + @_list + _2_ + @_entry + * _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 - * setion and "_" for the variable, so that the linker cannot confuse + * 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 * @@ -100,6 +102,16 @@ * %u_boot_list_2_drivers_3 */ +/** + * ll_sym() - 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 @@ -140,6 +152,27 @@ __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, 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