include/asm-generic/codetag.lds.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef __ASM_GENERIC_CODETAG_LDS_H
   3 #define __ASM_GENERIC_CODETAG_LDS_H
   4
   5 #define SECTION_WITH_BOUNDARIES(_name)  \
   6         . = ALIGN(8);                   \
   7         __start_##_name = .;            \
   8         KEEP(*(_name))                  \
   9         __stop_##_name = .;
  10
  11 #define CODETAG_SECTIONS()              \
  12         SECTION_WITH_BOUNDARIES(alloc_tags)
  13
  14 /*
  15  * Module codetags which aren't used after module unload, therefore have the
  16  * same lifespan as the module and can be safely unloaded with the module.
  17  */
  18 #define MOD_CODETAG_SECTIONS()
  19
  20 #define MOD_SEPARATE_CODETAG_SECTION(_name)     \
  21         .codetag.##_name : {                    \
  22                 SECTION_WITH_BOUNDARIES(_name)  \
  23         }
  24
  25 /*
  26  * For codetags which might be used after module unload, therefore might stay
  27  * longer in memory. Each such codetag type has its own section so that we can
  28  * unload them individually once unused.
  29  */
  30 #define MOD_SEPARATE_CODETAG_SECTIONS()         \
  31         MOD_SEPARATE_CODETAG_SECTION(alloc_tags)
  32
  33 #endif /* __ASM_GENERIC_CODETAG_LDS_H */