arch/arm/include/asm/secure.h

   1 #ifndef __ASM_SECURE_H
   2 #define __ASM_SECURE_H
   3
   4 #include <config.h>
   5
   6 #define __secure __attribute__ ((section ("._secure.text")))
   7 #define __secure_data __attribute__ ((section ("._secure.data")))
   8
   9 #if defined(CONFIG_ARMV7_SECURE_BASE) || defined(CONFIG_ARMV8_SECURE_BASE)
  10 /*
  11  * Warning, horror ahead.
  12  *
  13  * The target code lives in our "secure ram", but u-boot doesn't know
  14  * that, and has blindly added reloc_off to every relocation
  15  * entry. Gahh. Do the opposite conversion. This hack also prevents
  16  * GCC from generating code veeners, which u-boot doesn't relocate at
  17  * all...
  18  */
  19 #define secure_ram_addr(_fn) ({                                         \
  20                         DECLARE_GLOBAL_DATA_PTR;                        \
  21                         void *__fn = _fn;                               \
  22                         typeof(_fn) *__tmp = (__fn - gd->reloc_off);    \
  23                         __tmp;                                          \
  24                 })
  25 #else
  26 #define secure_ram_addr(_fn)    (_fn)
  27 #endif
  28
  29 #endif