dm: linker_lists: Add a way to declare multiple objects

[karo-tx-uboot.git] / include / linker_lists.h

diff --git a/include/linker_lists.h b/include/linker_lists.h
index 997d149b71de2eee294d0595bff34a02dd23fdce..d37fba44dcafc6b1ce6813cca4e8f3d6999e95d5 100644 (file)
--- a/include/linker_lists.h
+++ b/include/linker_lists.h
@@ -11,6 +11,8 @@
 #ifndef __LINKER_LISTS_H__
 #define __LINKER_LISTS_H__
 
+#include <linux/compiler.h>
+
 /*
  * 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.
@@ -28,11 +30,11 @@
  * 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.
  *
@@ -140,6 +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
@@ -228,7 +251,7 @@
  * and it's name.
  *
  * Example:
- * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub, cmd.sub) = {
+ * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
  *         .x = 3,
  *         .y = 4,
  * };