prepare_boost

Name:Prepare reljump right after instruction to boost

Proto:static int prepare_boost(kprobe_opcode_t *buf, struct kprobe *p, struct insn *insn)

Type:int

Parameter:

Type	Parameter	Name
kprobe_opcode_t *	buf
struct kprobe *	p
struct insn *	insn

400

402

If Returns non-zero if INSN is boostable.* RIP relative instructions are adjusted at copying time in 64 bits mode && MAX_INSN_SIZE - len >= RELATIVEJUMP_SIZE Then

408

Insert a jump instruction at address 'from', which jumps to address 'to'.

410

len += RELATIVEJUMP_SIZE

411

stable = false: This instruction type is not boostable.* boostable = true: This instruction has been boosted: we have* added a relative jump after the instruction copy in insn,* so no single-step and fixup are needed (unless there's* a post_handler). = true

412

Else

413

stable = false: This instruction type is not boostable.* boostable = true: This instruction has been boosted: we have* added a relative jump after the instruction copy in insn,* so no single-step and fixup are needed (unless there's* a post_handler). = false

416

Return len

**Caller**
Name	Describe
arch_copy_kprobe

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion