compiler-rt/test/builtins/Unit/lit.cfg.py

   1 # -*- Python -*-
   2
   3 import os
   4 import platform
   5 import shlex
   6 import subprocess
   7
   8 import lit.formats
   9
  10 # Choose between lit's internal shell pipeline runner and a real shell.  If
  11 # LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
  12 use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
  13 if use_lit_shell:
  14     # 0 is external, "" is default, and everything else is internal.
  15     execute_external = use_lit_shell == "0"
  16 else:
  17     # Otherwise we default to internal on Windows and external elsewhere, as
  18     # bash on Windows is usually very slow.
  19     execute_external = not sys.platform in ["win32"]
  20
  21
  22 def get_required_attr(config, attr_name):
  23     attr_value = getattr(config, attr_name, None)
  24     if attr_value == None:
  25         lit_config.fatal(
  26             "No attribute %r in test configuration! You may need to run "
  27             "tests from your build directory or add this attribute "
  28             "to lit.site.cfg.py " % attr_name
  29         )
  30     return attr_value
  31
  32
  33 def get_library_path(file):
  34     cmd = subprocess.Popen(
  35         [config.clang.strip(), "-print-file-name=%s" % file]
  36         + shlex.split(config.target_cflags),
  37         stdout=subprocess.PIPE,
  38         env=config.environment,
  39         universal_newlines=True,
  40     )
  41     if not cmd.stdout:
  42         lit_config.fatal("Couldn't find the library path for '%s'" % file)
  43     dir = cmd.stdout.read().strip()
  44     if sys.platform in ["win32"] and execute_external:
  45         # Don't pass dosish path separator to msys bash.exe.
  46         dir = dir.replace("\\", "/")
  47     return dir
  48
  49
  50 def get_libgcc_file_name():
  51     cmd = subprocess.Popen(
  52         [config.clang.strip(), "-print-libgcc-file-name"]
  53         + shlex.split(config.target_cflags),
  54         stdout=subprocess.PIPE,
  55         env=config.environment,
  56         universal_newlines=True,
  57     )
  58     if not cmd.stdout:
  59         lit_config.fatal("Couldn't find the library path for '%s'" % file)
  60     dir = cmd.stdout.read().strip()
  61     if sys.platform in ["win32"] and execute_external:
  62         # Don't pass dosish path separator to msys bash.exe.
  63         dir = dir.replace("\\", "/")
  64     return dir
  65
  66
  67 # Setup config name.
  68 config.name = "Builtins" + config.name_suffix
  69
  70 # Platform-specific default Builtins_OPTIONS for lit tests.
  71 default_builtins_opts = ""
  72
  73 # Setup source root.
  74 config.test_source_root = os.path.dirname(__file__)
  75
  76 # Path to the static library
  77 is_msvc = get_required_attr(config, "is_msvc")
  78 if is_msvc:
  79     base_lib = os.path.join(
  80         config.compiler_rt_libdir, "clang_rt.builtins%s.lib " % config.target_suffix
  81     )
  82     config.substitutions.append(("%librt ", base_lib))
  83 elif config.host_os == "Darwin":
  84     base_lib = os.path.join(config.compiler_rt_libdir, "libclang_rt.osx.a ")
  85     config.substitutions.append(("%librt ", base_lib + " -lSystem "))
  86 elif config.host_os == "Windows":
  87     base_lib = os.path.join(
  88         config.compiler_rt_libdir, "libclang_rt.builtins%s.a" % config.target_suffix
  89     )
  90     if sys.platform in ["win32"] and execute_external:
  91         # Don't pass dosish path separator to msys bash.exe.
  92         base_lib = base_lib.replace("\\", "/")
  93     config.substitutions.append(
  94         (
  95             "%librt ",
  96             base_lib
  97             + " -lmingw32 -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 ",
  98         )
  99     )
 100 else:
 101     base_lib = os.path.join(
 102         config.compiler_rt_libdir, "libclang_rt.builtins%s.a" % config.target_suffix
 103     )
 104     if sys.platform in ["win32"] and execute_external:
 105         # Don't pass dosish path separator to msys bash.exe.
 106         base_lib = base_lib.replace("\\", "/")
 107     config.substitutions.append(("%librt ", base_lib + " -lc -lm "))
 108
 109 builtins_build_crt = get_required_attr(config, "builtins_build_crt")
 110 if builtins_build_crt:
 111     base_obj = os.path.join(
 112         config.compiler_rt_libdir, "clang_rt.%%s%s.o" % config.target_suffix
 113     )
 114     if sys.platform in ["win32"] and execute_external:
 115         # Don't pass dosish path separator to msys bash.exe.
 116         base_obj = base_obj.replace("\\", "/")
 117
 118     config.substitutions.append(("%crtbegin", base_obj % "crtbegin"))
 119     config.substitutions.append(("%crtend", base_obj % "crtend"))
 120
 121     config.substitutions.append(("%crt1", get_library_path("crt1.o")))
 122     config.substitutions.append(("%crti", get_library_path("crti.o")))
 123     config.substitutions.append(("%crtn", get_library_path("crtn.o")))
 124
 125     config.substitutions.append(("%libgcc", get_libgcc_file_name()))
 126
 127     config.substitutions.append(
 128         ("%libstdcxx", "-l" + config.sanitizer_cxx_lib.lstrip("lib"))
 129     )
 130
 131     config.available_features.add("crt")
 132
 133 builtins_source_dir = os.path.join(
 134     get_required_attr(config, "compiler_rt_src_root"), "lib", "builtins"
 135 )
 136 if sys.platform in ["win32"] and execute_external:
 137     # Don't pass dosish path separator to msys bash.exe.
 138     builtins_source_dir = builtins_source_dir.replace("\\", "/")
 139 builtins_lit_source_dir = get_required_attr(config, "builtins_lit_source_dir")
 140
 141 extra_link_flags = ["-nodefaultlibs"]
 142
 143 target_cflags = [get_required_attr(config, "target_cflags")]
 144 target_cflags += ["-fno-builtin", "-I", builtins_source_dir]
 145 target_cflags += extra_link_flags
 146 target_cxxflags = config.cxx_mode_flags + target_cflags
 147 clang_builtins_static_cflags = [""] + config.debug_info_flags + target_cflags
 148 clang_builtins_static_cxxflags = config.cxx_mode_flags + clang_builtins_static_cflags
 149
 150 clang_builtins_cflags = clang_builtins_static_cflags
 151 clang_builtins_cxxflags = clang_builtins_static_cxxflags
 152
 153 # FIXME: Right now we don't compile the C99 complex builtins when using
 154 # clang-cl. Fix that.
 155 if not is_msvc:
 156     config.available_features.add("c99-complex")
 157
 158 builtins_is_msvc = get_required_attr(config, "builtins_is_msvc")
 159 if not builtins_is_msvc:
 160     config.available_features.add("int128")
 161
 162 clang_wrapper = ""
 163
 164
 165 def build_invocation(compile_flags):
 166     return " " + " ".join([clang_wrapper, config.clang] + compile_flags) + " "
 167
 168
 169 config.substitutions.append(("%clang ", build_invocation(target_cflags)))
 170 config.substitutions.append(("%clangxx ", build_invocation(target_cxxflags)))
 171 config.substitutions.append(
 172     ("%clang_builtins ", build_invocation(clang_builtins_cflags))
 173 )
 174 config.substitutions.append(
 175     ("%clangxx_builtins ", build_invocation(clang_builtins_cxxflags))
 176 )
 177
 178 # Default test suffixes.
 179 config.suffixes = [".c", ".cpp"]
 180
 181 if not config.emulator:
 182     config.available_features.add("native-run")
 183
 184 # Add features for available sources
 185 builtins_source_features = config.builtins_lit_source_features.split(";")
 186 # Sanity checks
 187 if not builtins_source_features:
 188     lit_config.fatal("builtins_source_features cannot be empty")
 189 builtins_source_features_set = set()
 190 builtins_source_feature_duplicates = []
 191 for builtin_source_feature in builtins_source_features:
 192     if len(builtin_source_feature) == 0:
 193         lit_config.fatal("builtins_source_feature cannot contain empty features")
 194     if builtin_source_feature not in builtins_source_features_set:
 195         builtins_source_features_set.add(builtin_source_feature)
 196     else:
 197         builtins_source_feature_duplicates.append(builtin_source_feature)
 198
 199 if len(builtins_source_feature_duplicates) > 0:
 200     lit_config.fatal(
 201         "builtins_source_features contains duplicates: {}".format(
 202             builtins_source_feature_duplicates
 203         )
 204     )
 205 config.available_features.update(builtins_source_features)