lld/test/lit.cfg.py

   1 # -*- Python -*-
   2
   3 import os
   4 import platform
   5 import re
   6 import subprocess
   7 import locale
   8
   9 import lit.formats
  10 import lit.util
  11
  12 from lit.llvm import llvm_config
  13
  14 # Configuration file for the 'lit' test runner.
  15
  16 # name: The name of this test suite.
  17 config.name = "lld"
  18
  19 # testFormat: The test format to use to interpret tests.
  20 #
  21 # For now we require '&&' between commands, until they get globally killed and the test runner updated.
  22 config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)
  23
  24 # suffixes: A list of file extensions to treat as test files.
  25 config.suffixes = [".ll", ".s", ".test", ".yaml", ".objtxt"]
  26
  27 # excludes: A list of directories to exclude from the testsuite. The 'Inputs'
  28 # subdirectories contain auxiliary inputs for various tests in their parent
  29 # directories.
  30 config.excludes = ["Inputs"]
  31
  32 # test_source_root: The root path where tests are located.
  33 config.test_source_root = os.path.dirname(__file__)
  34
  35 config.test_exec_root = os.path.join(config.lld_obj_root, "test")
  36
  37 llvm_config.use_default_substitutions()
  38 llvm_config.use_lld()
  39
  40 tool_patterns = [
  41     "llc",
  42     "llvm-as",
  43     "llvm-cgdata",
  44     "llvm-mc",
  45     "llvm-nm",
  46     "llvm-objdump",
  47     "llvm-otool",
  48     "llvm-pdbutil",
  49     "llvm-profdata",
  50     "llvm-dwarfdump",
  51     "llvm-readelf",
  52     "llvm-readobj",
  53     "obj2yaml",
  54     "yaml2obj",
  55     "opt",
  56     "llvm-dis",
  57 ]
  58
  59 llvm_config.add_tool_substitutions(tool_patterns)
  60
  61 # LLD tests tend to be flaky on NetBSD, so add some retries.
  62 # We don't do this on other platforms because it's slower.
  63 if platform.system() in ["NetBSD"]:
  64     config.test_retry_attempts = 2
  65
  66 # When running under valgrind, we mangle '-vg' onto the end of the triple so we
  67 # can check it with XFAIL and XTARGET.
  68 if lit_config.useValgrind:
  69     config.target_triple += "-vg"
  70
  71 llvm_config.feature_config(
  72     [
  73         (
  74             "--targets-built",
  75             {
  76                 "AArch64": "aarch64",
  77                 "AMDGPU": "amdgpu",
  78                 "ARM": "arm",
  79                 "AVR": "avr",
  80                 "Hexagon": "hexagon",
  81                 "LoongArch": "loongarch",
  82                 "Mips": "mips",
  83                 "MSP430": "msp430",
  84                 "PowerPC": "ppc",
  85                 "RISCV": "riscv",
  86                 "Sparc": "sparc",
  87                 "SystemZ": "systemz",
  88                 "WebAssembly": "wasm",
  89                 "X86": "x86",
  90             },
  91         ),
  92         ("--assertion-mode", {"ON": "asserts"}),
  93     ]
  94 )
  95
  96 # Set a fake constant version so that we get consistent output.
  97 config.environment["LLD_VERSION"] = "LLD 1.0"
  98
  99 # LLD_IN_TEST determines how many times `main` is run inside each process, which
 100 # lets us test that it's cleaning up after itself and resetting global state
 101 # correctly (which is important for usage as a library).
 102 run_lld_main_twice = lit_config.params.get("RUN_LLD_MAIN_TWICE", False)
 103 if not run_lld_main_twice:
 104     config.environment["LLD_IN_TEST"] = "1"
 105 else:
 106     config.environment["LLD_IN_TEST"] = "2"
 107     # Many ELF tests fail in this mode.
 108     config.excludes.append("ELF")
 109     # Some old Mach-O backend tests fail, and it's due for removal anyway.
 110     config.excludes.append("mach-o")
 111     # Some new Mach-O backend tests fail; give them a way to mark themselves
 112     # unsupported in this mode.
 113     config.available_features.add("main-run-twice")
 114
 115 # Indirectly check if the mt.exe Microsoft utility exists by searching for
 116 # cvtres, which always accompanies it.  Alternatively, check if we can use
 117 # libxml2 to merge manifests.
 118 if lit.util.which("cvtres", config.environment["PATH"]) or config.have_libxml2:
 119     config.available_features.add("manifest_tool")
 120
 121 if config.enable_backtrace:
 122     config.available_features.add("backtrace")
 123
 124 if config.have_libxml2:
 125     config.available_features.add("libxml2")
 126
 127 if config.have_dia_sdk:
 128     config.available_features.add("diasdk")
 129
 130 if config.sizeof_void_p == 8:
 131     config.available_features.add("llvm-64-bits")
 132
 133 if config.has_plugins:
 134     config.available_features.add("plugins")
 135
 136 if config.build_examples:
 137     config.available_features.add("examples")
 138
 139 if config.linked_bye_extension:
 140     config.substitutions.append(("%loadbye", ""))
 141     config.substitutions.append(("%loadnewpmbye", ""))
 142 else:
 143     config.substitutions.append(
 144         (
 145             "%loadbye",
 146             "-load={}/Bye{}".format(config.llvm_shlib_dir, config.llvm_shlib_ext),
 147         )
 148     )
 149     config.substitutions.append(
 150         (
 151             "%loadnewpmbye",
 152             "-load-pass-plugin={}/Bye{}".format(
 153                 config.llvm_shlib_dir, config.llvm_shlib_ext
 154             ),
 155         )
 156     )
 157
 158 tar_executable = lit.util.which("tar", config.environment["PATH"])
 159 if tar_executable:
 160     env = os.environ
 161     env["LANG"] = "C"
 162     tar_version = subprocess.Popen(
 163         [tar_executable, "--version"],
 164         stdout=subprocess.PIPE,
 165         stderr=subprocess.PIPE,
 166         env=env,
 167     )
 168     sout, _ = tar_version.communicate()
 169     if "GNU tar" in sout.decode():
 170         config.available_features.add("gnutar")
 171
 172 # ELF tests expect the default target for ld.lld to be ELF.
 173 if config.ld_lld_default_mingw:
 174     config.excludes.append("ELF")