toolchain_test.py

   1
   2 import subprocess
   3 import unittest
   4
   5
   6 class ToolchainTests(unittest.TestCase):
   7
   8     def test_padding_unusual_code_sections(self):
   9         # Test that ends of code sections are padded with NOPs not
  10         # zeroes when concatenated by the linker.
  11         subprocess.check_call(["nacl-gcc", "-c", "tests/section-padding.S",
  12                                "-o", "tests/section-padding-1.o"])
  13         subprocess.check_call(["nacl-gcc", "-c", "tests/section-padding.S",
  14                                "-Dfoo=foo2",
  15                                "-o", "tests/section-padding-2.o"])
  16         # Use of --relocatable mimics how glibc links libc.so in two
  17         # steps, producing libc_pic.os as an intermediate object.
  18         subprocess.check_call(["nacl-ld", "--relocatable",
  19                                "-Lglibc/ld",
  20                                "tests/section-padding-1.o",
  21                                "tests/section-padding-2.o",
  22                                "-o", "tests/section-padding-both.o"])
  23         # Link into an .so so that we can run ncval on it.
  24         # TODO: Make ncval work on .o files.
  25         subprocess.check_call(["nacl-gcc", "-shared",
  26                                "-Lglibc/ld",
  27                                "tests/section-padding-both.o",
  28                                "-o", "tests/section-padding-both.so"])
  29         subprocess.check_call(["ncval", "tests/section-padding-both.so"])
  30
  31
  32 if __name__ == "__main__":
  33     unittest.main()