[REFACTOR] remove code is not used

diff --git a/kprobe/arch/asm-x86/dbi_kprobes.c b/kprobe/arch/asm-x86/dbi_kprobes.c
index f1886b3..2353ff9 100644 (file)
--- a/kprobe/arch/asm-x86/dbi_kprobes.c
+++ b/kprobe/arch/asm-x86/dbi_kprobes.c
@@ -58,48 +58,9 @@
 #define SUPRESS_BUG_MESSAGES
 
 extern struct kprobe * per_cpu__current_kprobe;
-
 extern struct kprobe * per_cpu__current_kprobe;
-
 extern struct kprobe * current_kprobe;
 
-#define SAVE_REGS_STRING               \
-       /* Skip cs, ip, orig_ax. */     \
-       "       subq $24, %rsp\n"       \
-       "       pushq %rdi\n"           \
-       "       pushq %rsi\n"           \
-       "       pushq %rdx\n"           \
-       "       pushq %rcx\n"           \
-       "       pushq %rax\n"           \
-       "       pushq %r8\n"            \
-       "       pushq %r9\n"            \
-       "       pushq %r10\n"           \
-       "       pushq %r11\n"           \
-       "       pushq %rbx\n"           \
-       "       pushq %rbp\n"           \
-       "       pushq %r12\n"           \
-       "       pushq %r13\n"           \
-       "       pushq %r14\n"           \
-       "       pushq %r15\n"
-#define RESTORE_REGS_STRING            \
-       "       popq %r15\n"            \
-       "       popq %r14\n"            \
-       "       popq %r13\n"            \
-       "       popq %r12\n"            \
-       "       popq %rbp\n"            \
-       "       popq %rbx\n"            \
-       "       popq %r11\n"            \
-       "       popq %r10\n"            \
-       "       popq %r9\n"             \
-       "       popq %r8\n"             \
-       "       popq %rax\n"            \
-       "       popq %rcx\n"            \
-       "       popq %rdx\n"            \
-       "       popq %rsi\n"            \
-       "       popq %rdi\n"            \
-       /* Skip orig_ax, ip, cs */      \
-       "       addq $24, %rsp\n"
-
 DECLARE_MOD_FUNC_DEP(module_alloc, void *, unsigned long size);
 DECLARE_MOD_FUNC_DEP(module_free, void, struct module *mod, void *module_region);
 DECLARE_MOD_FUNC_DEP(fixup_exception, int, struct pt_regs * regs);
@@ -180,12 +141,6 @@ static __used void kretprobe_trampoline_holder(void)
 
 void kretprobe_trampoline(void);
 
-struct kprobe trampoline_p =
-{
-       .addr = (kprobe_opcode_t *) & kretprobe_trampoline,
-       .pre_handler = trampoline_probe_handler
-};
-
 /* insert a jmp code */
 static __always_inline void set_jmp_op (void *from, void *to)
 {
@@ -199,20 +154,6 @@ static __always_inline void set_jmp_op (void *from, void *to)
        jop->op = RELATIVEJUMP_INSTRUCTION;
 }
 
-static void set_user_jmp_op (void *from, void *to)
-{
-       struct __arch_jmp_op
-       {
-               char op;
-               long raddr;
-       } __attribute__ ((packed)) jop;
-       //jop = (struct __arch_jmp_op *) from;
-       jop.raddr = (long) (to) - ((long) (from) + 5);
-       jop.op = RELATIVEJUMP_INSTRUCTION;
-       if (!write_proc_vm_atomic (current, (unsigned long)from, &jop, sizeof(jop)))
-               panic ("failed to write jump opcode to user space %p!\n", from);
-}
-
 /*
  * returns non-zero if opcodes can be boosted.
  */