dm: linker_lists: Add a way to declare multiple objects

The existing ll_entry_declare() permits a single element of the list to
be added to a linker list. Sometimes we want to add several objects at
once. To avoid lots of messy declarations, add a macro to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-10-01 19:57:20 -06:00
parent ea0ebc8662
commit 3fcc3af4d2

View File

@ -142,6 +142,27 @@
__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