mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 00:29:20 +00:00
The goal of this tool is to replicate Darwin's dsymutil functionality based on LLVM. dsymutil is a DWARF linker. Darwin's linker (ld64) does not link the debug information, it leaves it in the object files in relocatable form, but embbeds a `debug map` into the executable that describes where to find the debug information and how to relocate it. When releasing/archiving a binary, dsymutil is called to link all the DWARF information into a `dsym bundle` that can distributed/stored along with the binary. With this commit, the LLVM based dsymutil is just able to parse the STABS debug maps embedded by ld64 in linked binaries (and not all of them, for example archives aren't supported yet). Note that the tool directory is called dsymutil, but the executable is currently called llvm-dsymutil. This discrepancy will disappear once the tool will be feature complete. At this point the executable will be renamed to dsymutil, but until then you do not want it to override the system one. Differential Revision: http://reviews.llvm.org/D6242 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224134 91177308-0d34-0410-b5e6-96231b3b80d8
410 lines
15 KiB
Python
410 lines
15 KiB
Python
# -*- Python -*-
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# Configuration file for the 'lit' test runner.
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import os
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import sys
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import re
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import platform
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import lit.util
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import lit.formats
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# name: The name of this test suite.
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config.name = 'LLVM'
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# Tweak PATH for Win32 to decide to use bash.exe or not.
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if sys.platform in ['win32']:
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# Seek sane tools in directories and set to $PATH.
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path = getattr(config, 'lit_tools_dir', None)
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path = lit_config.getToolsPath(path,
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config.environment['PATH'],
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['cmp.exe', 'grep.exe', 'sed.exe'])
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if path is not None:
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path = os.path.pathsep.join((path,
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config.environment['PATH']))
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config.environment['PATH'] = path
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# Choose between lit's internal shell pipeline runner and a real shell. If
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# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
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use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
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if use_lit_shell:
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# 0 is external, "" is default, and everything else is internal.
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execute_external = (use_lit_shell == "0")
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else:
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# Otherwise we default to internal on Windows and external elsewhere, as
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# bash on Windows is usually very slow.
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execute_external = (not sys.platform in ['win32'])
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# testFormat: The test format to use to interpret tests.
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config.test_format = lit.formats.ShTest(execute_external)
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# suffixes: A list of file extensions to treat as test files. This is overriden
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# by individual lit.local.cfg files in the test subdirectories.
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config.suffixes = ['.ll', '.c', '.cpp', '.test', '.txt', '.s']
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# excludes: A list of directories to exclude from the testsuite. The 'Inputs'
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# subdirectories contain auxiliary inputs for various tests in their parent
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# directories.
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config.excludes = ['Inputs', 'CMakeLists.txt', 'README.txt', 'LICENSE.txt']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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# test_exec_root: The root path where tests should be run.
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llvm_obj_root = getattr(config, 'llvm_obj_root', None)
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if llvm_obj_root is not None:
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config.test_exec_root = os.path.join(llvm_obj_root, 'test')
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# Tweak the PATH to include the tools dir.
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if llvm_obj_root is not None:
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llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
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if not llvm_tools_dir:
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lit_config.fatal('No LLVM tools dir set!')
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path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
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config.environment['PATH'] = path
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# Propagate 'HOME' through the environment.
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if 'HOME' in os.environ:
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config.environment['HOME'] = os.environ['HOME']
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# Propagate 'INCLUDE' through the environment.
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if 'INCLUDE' in os.environ:
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config.environment['INCLUDE'] = os.environ['INCLUDE']
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# Propagate 'LIB' through the environment.
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if 'LIB' in os.environ:
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config.environment['LIB'] = os.environ['LIB']
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# Propagate the temp directory. Windows requires this because it uses \Windows\
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# if none of these are present.
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if 'TMP' in os.environ:
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config.environment['TMP'] = os.environ['TMP']
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if 'TEMP' in os.environ:
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config.environment['TEMP'] = os.environ['TEMP']
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# Propagate LLVM_SRC_ROOT into the environment.
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config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
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# Propagate PYTHON_EXECUTABLE into the environment
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config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
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'')
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# Propagate path to symbolizer for ASan/MSan.
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for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
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if symbolizer in os.environ:
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config.environment[symbolizer] = os.environ[symbolizer]
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# Set up OCAMLPATH to include newly built OCaml libraries.
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llvm_lib_dir = getattr(config, 'llvm_lib_dir', None)
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if llvm_lib_dir is None:
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if llvm_obj_root is not None:
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llvm_lib_dir = os.path.join(llvm_obj_root, 'lib')
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if llvm_lib_dir is not None:
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llvm_ocaml_lib = os.path.join(llvm_lib_dir, 'ocaml')
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if llvm_ocaml_lib is not None:
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if 'OCAMLPATH' in os.environ:
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ocamlpath = os.path.pathsep.join((llvm_ocaml_lib, os.environ['OCAMLPATH']))
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config.environment['OCAMLPATH'] = ocamlpath
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else:
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config.environment['OCAMLPATH'] = llvm_ocaml_lib
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if 'CAML_LD_LIBRARY_PATH' in os.environ:
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caml_ld_library_path = os.path.pathsep.join((llvm_ocaml_lib,
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os.environ['CAML_LD_LIBRARY_PATH']))
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config.environment['CAML_LD_LIBRARY_PATH'] = caml_ld_library_path
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else:
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config.environment['CAML_LD_LIBRARY_PATH'] = llvm_ocaml_lib
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# Set up OCAMLRUNPARAM to enable backtraces in OCaml tests.
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config.environment['OCAMLRUNPARAM'] = 'b'
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###
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import os
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# Check that the object root is known.
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if config.test_exec_root is None:
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# Otherwise, we haven't loaded the site specific configuration (the user is
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# probably trying to run on a test file directly, and either the site
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# configuration hasn't been created by the build system, or we are in an
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# out-of-tree build situation).
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# Check for 'llvm_site_config' user parameter, and use that if available.
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site_cfg = lit_config.params.get('llvm_site_config', None)
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if site_cfg and os.path.exists(site_cfg):
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lit_config.load_config(config, site_cfg)
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raise SystemExit
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# Try to detect the situation where we are using an out-of-tree build by
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# looking for 'llvm-config'.
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#
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# FIXME: I debated (i.e., wrote and threw away) adding logic to
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# automagically generate the lit.site.cfg if we are in some kind of fresh
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# build situation. This means knowing how to invoke the build system
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# though, and I decided it was too much magic.
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llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
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if not llvm_config:
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lit_config.fatal('No site specific configuration available!')
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# Get the source and object roots.
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llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
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llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
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# Validate that we got a tree which points to here.
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this_src_root = os.path.dirname(config.test_source_root)
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if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
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lit_config.fatal('No site specific configuration available!')
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# Check that the site specific configuration exists.
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site_cfg = os.path.join(llvm_obj_root, 'test', 'lit.site.cfg')
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if not os.path.exists(site_cfg):
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lit_config.fatal('No site specific configuration available!')
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# Okay, that worked. Notify the user of the automagic, and reconfigure.
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lit_config.note('using out-of-tree build at %r' % llvm_obj_root)
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lit_config.load_config(config, site_cfg)
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raise SystemExit
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###
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lli = 'lli'
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# The target triple used by default by lli is the process target triple (some
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# triple appropriate for generating code for the current process) but because
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# we don't support COFF in MCJIT well enough for the tests, force ELF format on
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# Windows. FIXME: the process target triple should be used here, but this is
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# difficult to obtain on Windows.
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if re.search(r'cygwin|mingw32|win32', config.host_triple):
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lli += ' -mtriple='+config.host_triple+'-elf'
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config.substitutions.append( ('%lli', lli ) )
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# Similarly, have a macro to use llc with DWARF even when the host is win32.
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llc_dwarf = 'llc'
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if re.search(r'win32', config.target_triple):
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llc_dwarf += ' -mtriple='+config.target_triple.replace('-win32', '-mingw32')
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config.substitutions.append( ('%llc_dwarf', llc_dwarf) )
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# Add site-specific substitutions.
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config.substitutions.append( ('%go', config.go_executable) )
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config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
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config.substitutions.append( ('%shlibext', config.llvm_shlib_ext) )
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config.substitutions.append( ('%exeext', config.llvm_exe_ext) )
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config.substitutions.append( ('%python', config.python_executable) )
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# OCaml substitutions.
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# Support tests for both native and bytecode builds.
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config.substitutions.append( ('%ocamlc',
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"%s ocamlc -cclib -L%s %s" %
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(config.ocamlfind_executable, llvm_lib_dir, config.ocaml_flags)) )
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if config.have_ocamlopt in ('1', 'TRUE'):
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config.substitutions.append( ('%ocamlopt',
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"%s ocamlopt -cclib -L%s -cclib -Wl,-rpath,%s %s" %
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(config.ocamlfind_executable, llvm_lib_dir, llvm_lib_dir, config.ocaml_flags)) )
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else:
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config.substitutions.append( ('%ocamlopt', "true" ) )
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# For each occurrence of an llvm tool name as its own word, replace it
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# with the full path to the build directory holding that tool. This
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# ensures that we are testing the tools just built and not some random
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# tools that might happen to be in the user's PATH. Thus this list
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# includes every tool placed in $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
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# (llvm_tools_dir in lit parlance).
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# Avoid matching RUN line fragments that are actually part of
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# path names or options or whatever.
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# The regex is a pre-assertion to avoid matching a preceding
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# dot, hyphen, carat, or slash (.foo, -foo, etc.). Some patterns
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# also have a post-assertion to not match a trailing hyphen (foo-).
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NOJUNK = r"(?<!\.|-|\^|/)"
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for pattern in [r"\bbugpoint\b(?!-)",
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NOJUNK + r"\bllc\b",
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r"\blli\b",
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r"\bllvm-ar\b",
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r"\bllvm-as\b",
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r"\bllvm-bcanalyzer\b",
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r"\bllvm-config\b",
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r"\bllvm-cov\b",
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r"\bllvm-diff\b",
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r"\bllvm-dis\b",
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r"\bllvm-dsymutil\b",
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r"\bllvm-dwarfdump\b",
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r"\bllvm-extract\b",
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r"\bllvm-go\b",
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r"\bllvm-link\b",
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r"\bllvm-lto\b",
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r"\bllvm-mc\b",
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r"\bllvm-mcmarkup\b",
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r"\bllvm-nm\b",
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r"\bllvm-objdump\b",
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r"\bllvm-profdata\b",
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r"\bllvm-ranlib\b",
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r"\bllvm-readobj\b",
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r"\bllvm-rtdyld\b",
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r"\bllvm-size\b",
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r"\bllvm-tblgen\b",
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r"\bllvm-vtabledump\b",
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r"\bllvm-c-test\b",
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r"\bmacho-dump\b",
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NOJUNK + r"\bopt\b",
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r"\bFileCheck\b",
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r"\bobj2yaml\b",
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r"\byaml2obj\b",
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r"\bverify-uselistorder\b",
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# Handle these specially as they are strings searched
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# for during testing.
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r"\| \bcount\b",
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r"\| \bnot\b"]:
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# Extract the tool name from the pattern. This relies on the tool
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# name being surrounded by \b word match operators. If the
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# pattern starts with "| ", include it in the string to be
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# substituted.
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tool_match = re.match(r"^(\\)?((\| )?)\W+b([0-9A-Za-z-_]+)\\b\W*$",
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pattern)
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tool_pipe = tool_match.group(2)
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tool_name = tool_match.group(4)
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tool_path = lit.util.which(tool_name, llvm_tools_dir)
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if not tool_path:
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# Warn, but still provide a substitution.
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lit_config.note('Did not find ' + tool_name + ' in ' + llvm_tools_dir)
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tool_path = llvm_tools_dir + '/' + tool_name
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config.substitutions.append((pattern, tool_pipe + tool_path))
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### Targets
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config.targets = frozenset(config.targets_to_build.split())
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### Features
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# Shell execution
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if execute_external:
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config.available_features.add('shell')
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# Others/can-execute.txt
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if sys.platform not in ['win32']:
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config.available_features.add('can-execute')
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# Loadable module
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# FIXME: This should be supplied by Makefile or autoconf.
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if sys.platform in ['win32', 'cygwin']:
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loadable_module = (config.enable_shared == 1)
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else:
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loadable_module = True
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if loadable_module:
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config.available_features.add('loadable_module')
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# Sanitizers.
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if config.llvm_use_sanitizer == "Address":
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config.available_features.add("asan")
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if (config.llvm_use_sanitizer == "Memory" or
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config.llvm_use_sanitizer == "MemoryWithOrigins"):
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config.available_features.add("msan")
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if config.llvm_use_sanitizer == "Undefined":
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config.available_features.add("ubsan")
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else:
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config.available_features.add("not_ubsan")
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# Direct object generation
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# Suppress x86_64-mingw32 while investigating since r219108.
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if not 'hexagon' in config.target_triple and not re.match(r'^x86_64.*-(mingw32|win32)', config.target_triple):
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config.available_features.add("object-emission")
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if config.have_zlib == "1":
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config.available_features.add("zlib")
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else:
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config.available_features.add("nozlib")
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# Native compilation: host arch == target arch
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# FIXME: Consider cases that target can be executed
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# even if host_triple were different from target_triple.
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if config.host_triple == config.target_triple:
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config.available_features.add("native")
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import subprocess
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def have_ld_plugin_support():
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if not os.path.exists(os.path.join(config.llvm_shlib_dir, 'LLVMgold.so')):
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return False
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ld_cmd = subprocess.Popen(['ld', '--help'], stdout = subprocess.PIPE)
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ld_out = ld_cmd.stdout.read()
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ld_cmd.wait()
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if not '-plugin' in ld_out:
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return False
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# check that the used emulations are supported.
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emu_line = [l for l in ld_out.split('\n') if 'supported emulations' in l]
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if len(emu_line) != 1:
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return False
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emu_line = emu_line[0]
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fields = emu_line.split(':')
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if len(fields) != 3:
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return False
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emulations = fields[2].split()
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if 'elf32ppc' not in emulations or 'elf_x86_64' not in emulations:
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return False
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ld_version = subprocess.Popen(['ld', '--version'], stdout = subprocess.PIPE)
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if not 'GNU gold' in ld_version.stdout.read():
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return False
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ld_version.wait()
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return True
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if have_ld_plugin_support():
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config.available_features.add('ld_plugin')
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# Ask llvm-config about assertion mode.
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try:
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llvm_config_cmd = subprocess.Popen(
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[os.path.join(llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
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stdout = subprocess.PIPE,
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env=config.environment)
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except OSError:
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print("Could not find llvm-config in " + llvm_tools_dir)
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exit(42)
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if re.search(r'ON', llvm_config_cmd.stdout.read().decode('ascii')):
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config.available_features.add('asserts')
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llvm_config_cmd.wait()
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if 'darwin' == sys.platform:
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try:
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sysctl_cmd = subprocess.Popen(['sysctl', 'hw.optional.fma'],
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stdout = subprocess.PIPE)
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except OSError:
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print("Could not exec sysctl")
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result = sysctl_cmd.stdout.read().decode('ascii')
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if -1 != result.find("hw.optional.fma: 1"):
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config.available_features.add('fma3')
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sysctl_cmd.wait()
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# .debug_frame is not emitted for targeting Windows x64.
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if not re.match(r'^x86_64.*-(mingw32|win32)', config.target_triple):
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config.available_features.add('debug_frame')
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# Check if we should use gmalloc.
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use_gmalloc_str = lit_config.params.get('use_gmalloc', None)
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if use_gmalloc_str is not None:
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if use_gmalloc_str.lower() in ('1', 'true'):
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use_gmalloc = True
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elif use_gmalloc_str.lower() in ('', '0', 'false'):
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use_gmalloc = False
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else:
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lit_config.fatal('user parameter use_gmalloc should be 0 or 1')
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else:
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# Default to not using gmalloc
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use_gmalloc = False
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# Allow use of an explicit path for gmalloc library.
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# Will default to '/usr/lib/libgmalloc.dylib' if not set.
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gmalloc_path_str = lit_config.params.get('gmalloc_path',
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'/usr/lib/libgmalloc.dylib')
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if use_gmalloc:
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config.environment.update({'DYLD_INSERT_LIBRARIES' : gmalloc_path_str})
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