linux/arch/arm/kernel/jump_label.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/kernel.h>
   3#include <linux/jump_label.h>
   4#include <asm/patch.h>
   5#include <asm/insn.h>
   6
   7static void __arch_jump_label_transform(struct jump_entry *entry,
   8                                        enum jump_label_type type,
   9                                        bool is_static)
  10{
  11        void *addr = (void *)entry->code;
  12        unsigned int insn;
  13
  14        if (type == JUMP_LABEL_JMP)
  15                insn = arm_gen_branch(entry->code, entry->target);
  16        else
  17                insn = arm_gen_nop();
  18
  19        if (is_static)
  20                __patch_text_early(addr, insn);
  21        else
  22                patch_text(addr, insn);
  23}
  24
  25void arch_jump_label_transform(struct jump_entry *entry,
  26                               enum jump_label_type type)
  27{
  28        __arch_jump_label_transform(entry, type, false);
  29}
  30
  31void arch_jump_label_transform_static(struct jump_entry *entry,
  32                                      enum jump_label_type type)
  33{
  34        __arch_jump_label_transform(entry, type, true);
  35}
  36