LXR linux/arch/arm/kernel/jump

   1#include <linux/kernel.h>
   2#include <linux/jump_label.h>
   3
   4#include "insn.h"
   5#include "patch.h"
   6
   7#ifdef HAVE_JUMP_LABEL
   8
   9static void __arch_jump_label_transform(struct jump_entry *entry,
  10                                        enum jump_label_type type,
  11                                        bool is_static)
  12{
  13        void *addr = (void *)entry->code;
  14        unsigned int insn;
  15
  16        if (type == JUMP_LABEL_ENABLE)
  17                insn = arm_gen_branch(entry->code, entry->target);
  18        else
  19                insn = arm_gen_nop();
  20
  21        if (is_static)
  22                __patch_text(addr, insn);
  23        else
  24                patch_text(addr, insn);
  25}
  26
  27void arch_jump_label_transform(struct jump_entry *entry,
  28                               enum jump_label_type type)
  29{
  30        __arch_jump_label_transform(entry, type, false);
  31}
  32
  33void arch_jump_label_transform_static(struct jump_entry *entry,
  34                                      enum jump_label_type type)
  35{
  36        __arch_jump_label_transform(entry, type, true);
  37}
  38
  39#endif
  40