jump_label.c

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#include <linux/kernel.h>
#include <linux/jump_label.h>

#include "insn.h"
#include "patch.h"

#ifdef HAVE_JUMP_LABEL

static void __arch_jump_label_transform(struct jump_entry *entry,
                    enum jump_label_type type,
                    bool is_static)
{
    void *addr = (void *)entry->code;
    unsigned int insn;

    if (type == JUMP_LABEL_ENABLE)
        insn = arm_gen_branch(entry->code, entry->target);
    else
        insn = arm_gen_nop();

    if (is_static)
        __patch_text(addr, insn);
    else
        patch_text(addr, insn);
}

void arch_jump_label_transform(struct jump_entry *entry,
                   enum jump_label_type type)
{
    __arch_jump_label_transform(entry, type, false);
}

void arch_jump_label_transform_static(struct jump_entry *entry,
                      enum jump_label_type type)
{
    __arch_jump_label_transform(entry, type, true);
}

#endif