llvm-6502/test/Unit/lit.cfg
Jeffrey Yasskin f6afae2f49 Add a shared library for LLVM, named libLLVM2.7svn.(so|dylib), and add an
--enable-shared configure flag to have the tools linked shared. (2.7svn is just
$(LLVMVersion) so it'll change to "2.7" in the release.)  Always link the
example programs shared to test that the shared library keeps working.

On my mac laptop, Debug libLLVM2.7svn.dylib is 39MB, and opt (for example) is
16M static vs 440K shared.

Two things are less than ideal here:
1) The library doesn't include any version information. Since we expect to break
the ABI with every release, this shouldn't be much of a problem. If we do
release a compatible 2.7.1, we may be able to hack its library to work with
binaries compiled against 2.7.0, or we can just ask them to recompile. I'm
hoping to get a real packaging expert to look at this for the 2.8 release.
2) llvm-config doesn't yet have an option to print link options for the shared
library. I'll add this as a subsequent patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96559 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-18 02:36:02 +00:00

78 lines
3.1 KiB
Python

# -*- Python -*-
# Configuration file for the 'lit' test runner.
import os
# name: The name of this test suite.
config.name = 'LLVM-Unit'
# suffixes: A list of file extensions to treat as test files.
config.suffixes = []
# test_source_root: The root path where tests are located.
# test_exec_root: The root path where tests should be run.
llvm_obj_root = getattr(config, 'llvm_obj_root', None)
if llvm_obj_root is not None:
config.test_exec_root = os.path.join(llvm_obj_root, 'unittests')
config.test_source_root = config.test_exec_root
# testFormat: The test format to use to interpret tests.
llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
###
# If necessary, point the dynamic loader at libLLVM.so.
if config.enable_shared:
libdir = os.path.join(config.llvm_obj_root, config.llvm_build_mode, 'lib')
shlibpath = config.environment.get(config.shlibpath_var,'')
if shlibpath:
shlibpath = ':' + shlibpath
shlibpath = libdir + shlibpath
config.environment[config.shlibpath_var] = shlibpath
# Check that the object root is known.
if config.test_exec_root is None:
# Otherwise, we haven't loaded the site specific configuration (the user is
# probably trying to run on a test file directly, and either the site
# configuration hasn't been created by the build system, or we are in an
# out-of-tree build situation).
# Check for 'llvm_unit_site_config' user parameter, and use that if available.
site_cfg = lit.params.get('llvm_unit_site_config', None)
if site_cfg and os.path.exists(site_cfg):
lit.load_config(config, site_cfg)
raise SystemExit
# Try to detect the situation where we are using an out-of-tree build by
# looking for 'llvm-config'.
#
# FIXME: I debated (i.e., wrote and threw away) adding logic to
# automagically generate the lit.site.cfg if we are in some kind of fresh
# build situation. This means knowing how to invoke the build system
# though, and I decided it was too much magic.
llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
if not llvm_config:
lit.fatal('No site specific configuration available!')
# Get the source and object roots.
llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
# Validate that we got a tree which points to here.
this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
lit.fatal('No site specific configuration available!')
# Check that the site specific configuration exists.
site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
if not os.path.exists(site_cfg):
lit.fatal('No site specific configuration available!')
# Okay, that worked. Notify the user of the automagic, and reconfigure.
lit.note('using out-of-tree build at %r' % llvm_obj_root)
lit.load_config(config, site_cfg)
raise SystemExit