C++ (Cpp) gum_x86_writer_init 예제들

예제 #1

파일: gumspinlock-amd64-msc.c 프로젝트: pombredanne/frida-gum

void
gum_spinlock_init (GumSpinlock * spinlock)
{
  GumSpinlockImpl * self = (GumSpinlockImpl *) spinlock;
  GumX86Writer cw;
  gpointer try_again_label = "gum_spinlock_try_again";
  gpointer beach_label = "gum_spinlock_beach";

  self->is_held = FALSE;

  self->code = gum_alloc_n_pages (1, GUM_PAGE_RWX);

  gum_x86_writer_init (&cw, self->code);

  self->acquire_impl = GUM_POINTER_TO_FUNCPTR (GumSpinlockAcquireFunc,
      gum_x86_writer_cur (&cw));
  gum_x86_writer_put_mov_reg_u32 (&cw, GUM_REG_EDX, 1);

  gum_x86_writer_put_label (&cw, try_again_label);
  gum_x86_writer_put_mov_reg_u32 (&cw, GUM_REG_EAX, 0);
  gum_x86_writer_put_lock_cmpxchg_reg_ptr_reg (&cw, GUM_REG_RCX, GUM_REG_EDX);
  gum_x86_writer_put_jcc_short_label (&cw, GUM_X86_JZ, beach_label,
      GUM_NO_HINT);

  gum_x86_writer_put_pause (&cw);
  gum_x86_writer_put_jmp_short_label (&cw, try_again_label);

  gum_x86_writer_put_label (&cw, beach_label);
  gum_x86_writer_put_ret (&cw);

  gum_x86_writer_free (&cw);
}

예제 #2

파일: codewriter-fixture.c 프로젝트: pombredanne/frida-gum

static void
test_code_writer_fixture_setup (TestCodeWriterFixture * fixture,
                                gconstpointer data)
{
  gum_x86_writer_init (&fixture->cw, fixture->output);

  gum_x86_writer_set_target_cpu (&fixture->cw, GUM_CPU_AMD64);
  gum_x86_writer_set_target_abi (&fixture->cw, GUM_ABI_WINDOWS);
}

예제 #3

파일: lowlevel-helpers.c 프로젝트: SomeoneWeird/frida-gum

void
lowlevel_helpers_init (void)
{
  GumX86Writer cw;

  g_assert (clobber_test_function == NULL);

  clobber_test_function = GUM_POINTER_TO_FUNCPTR (ClobberTestFunc,
      gum_alloc_n_pages (1, GUM_PAGE_RWX));
  gum_x86_writer_init (&cw, (gpointer) (gsize) clobber_test_function);
  gum_x86_writer_put_nop (&cw);
  gum_x86_writer_put_nop (&cw);
  gum_x86_writer_put_nop (&cw);
  gum_x86_writer_put_nop (&cw);
  gum_x86_writer_put_nop (&cw);
  gum_x86_writer_put_ret (&cw);
  gum_x86_writer_free (&cw);
}

예제 #4

파일: relocator-fixture.c 프로젝트: pombredanne/frida-gum

static void
test_relocator_fixture_setup (TestRelocatorFixture * fixture,
                              gconstpointer data)
{
  guint page_size;
  guint8 stack_data[1] = { 42 };
  GumAddressSpec as;

  page_size = gum_query_page_size ();

  as.near_address = (gpointer) stack_data;
  as.max_distance = G_MAXINT32 - page_size;

  fixture->output = (guint8 *) gum_alloc_n_pages_near (1, GUM_PAGE_RWX, &as);
  memset (fixture->output, 0, page_size);

  gum_x86_writer_init (&fixture->cw, fixture->output);
}