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import itertools
import os
import os.path
import sys
import subprocess
import optparse
import process_command_files as pcf
from process_whole_archive_option import ProcessWholeArchiveOption
def get_leaks_suppressions(cmd):
supp, newcmd = [], []
for arg in cmd:
if arg.endswith(".supp"):
supp.append(arg)
else:
newcmd.append(arg)
return supp, newcmd
MUSL_LIBS = '-lc', '-lcrypt', '-ldl', '-lm', '-lpthread', '-lrt', '-lutil'
CUDA_LIBRARIES = {
'-lcublas_static': '-lcublas',
'-lcublasLt_static': '-lcublasLt',
'-lcudart_static': '-lcudart',
'-lcudnn_static': '-lcudnn',
'-lcufft_static_nocallback': '-lcufft',
'-lcurand_static': '-lcurand',
'-lcusolver_static': '-lcusolver',
'-lcusparse_static': '-lcusparse',
'-lmyelin_compiler_static': '-lmyelin',
'-lmyelin_executor_static': '-lnvcaffe_parser',
'-lmyelin_pattern_library_static': '',
'-lmyelin_pattern_runtime_static': '',
'-lnvinfer_static': '-lnvinfer',
'-lnvinfer_plugin_static': '-lnvinfer_plugin',
'-lnvonnxparser_static': '-lnvonnxparser',
'-lnvparsers_static': '-lnvparsers',
}
def prune_cuda_libraries(cmd, prune_arches, nvprune_exe, build_root):
def name_generator(prefix):
for idx in itertools.count():
yield prefix + '_' + str(idx)
def compute_arch(arch):
_, ver = arch.split('_', 1)
return 'compute_{}'.format(ver)
tmp_names_gen = name_generator('cuda_pruned_libs')
arch_args = []
for arch in prune_arches.split(':'):
arch_args.append('-gencode')
arch_args.append('arch={},code={}'.format(compute_arch(arch), arch))
flags = []
cuda_deps = set()
for flag in reversed(cmd):
if flag in CUDA_LIBRARIES:
cuda_deps.add('lib' + flag[2:] + '.a')
flag += '_pruned'
elif flag.startswith('-L') and any(f in cuda_deps for f in os.listdir(flag[2:])):
from_dirpath = flag[2:]
from_deps = list(cuda_deps & set(os.listdir(from_dirpath)))
if from_deps:
to_dirpath = os.path.abspath(os.path.join(build_root, next(tmp_names_gen)))
os.makedirs(to_dirpath)
for f in from_deps:
# prune lib
from_path = os.path.join(from_dirpath, f)
to_path = os.path.join(to_dirpath, f[:-2] + '_pruned.a')
subprocess.check_call([nvprune_exe] + arch_args + ['--output-file', to_path, from_path])
cuda_deps.remove(f)
# do not remove current directory
# because it can contain other libraries we want link to
# instead we just add new directory with pruned libs
flags.append('-L' + to_dirpath)
flags.append(flag)
assert not cuda_deps, ('Unresolved CUDA deps: ' + ','.join(cuda_deps))
return reversed(flags)
def remove_excessive_flags(cmd):
flags = []
for flag in cmd:
if not flag.endswith('.ios.interface') and not flag.endswith('.pkg.fake'):
flags.append(flag)
return flags
def fix_sanitize_flag(cmd, opts):
"""
Remove -fsanitize=address flag if sanitazers are linked explicitly for linux target.
"""
for flag in cmd:
if flag.startswith('--target') and 'linux' not in flag.lower():
# use toolchained sanitize libraries
return cmd
assert opts.clang_ver
CLANG_RT = 'contrib/libs/clang' + opts.clang_ver + '-rt/lib/'
sanitize_flags = {
'-fsanitize=address': CLANG_RT + 'asan',
'-fsanitize=memory': CLANG_RT + 'msan',
'-fsanitize=leak': CLANG_RT + 'lsan',
'-fsanitize=undefined': CLANG_RT + 'ubsan',
'-fsanitize=thread': CLANG_RT + 'tsan',
}
used_sanitize_libs = []
aux = []
for flag in cmd:
if flag.startswith('-fsanitize-coverage='):
# do not link sanitizer libraries from clang
aux.append('-fno-sanitize-link-runtime')
if flag in sanitize_flags and any(s.startswith(sanitize_flags[flag]) for s in cmd):
# exclude '-fsanitize=' if appropriate library is linked explicitly
continue
if any(flag.startswith(lib) for lib in sanitize_flags.values()):
used_sanitize_libs.append(flag)
continue
aux.append(flag)
# move sanitize libraries out of the repeatedly searched group of archives
flags = []
for flag in aux:
if flag == '-Wl,--start-group':
flags += ['-Wl,--whole-archive'] + used_sanitize_libs + ['-Wl,--no-whole-archive']
flags.append(flag)
return flags
def fix_cmd_for_musl(cmd):
flags = []
for flag in cmd:
if flag not in MUSL_LIBS:
flags.append(flag)
return flags
def fix_cmd_for_dynamic_cuda(cmd):
flags = []
for flag in cmd:
if flag in CUDA_LIBRARIES:
flags.append(CUDA_LIBRARIES[flag])
else:
flags.append(flag)
return flags
def gen_default_suppressions(inputs, output, source_root):
import collections
import os
supp_map = collections.defaultdict(set)
for filename in inputs:
sanitizer = os.path.basename(filename).split('.', 1)[0]
with open(os.path.join(source_root, filename)) as src:
for line in src:
line = line.strip()
if not line or line.startswith('#'):
continue
supp_map[sanitizer].add(line)
with open(output, "wb") as dst:
for supp_type, supps in supp_map.items():
dst.write('extern "C" const char *__%s_default_suppressions() {\n' % supp_type)
dst.write(' return "{}";\n'.format('\\n'.join(sorted(supps))))
dst.write('}\n')
def fix_blas_resolving(cmd):
# Intel mkl comes as a precompiled static library and thus can not be recompiled with sanitizer runtime instrumentation.
# That's why we prefer to use cblas instead of Intel mkl as a drop-in replacement under sanitizers.
# But if the library has dependencies on mkl and cblas simultaneously, it will get a linking error.
# Hence we assume that it's probably compiling without sanitizers and we can easily remove cblas to prevent multiple definitions of the same symbol at link time.
for arg in cmd:
if arg.startswith('contrib/libs') and arg.endswith('mkl-lp64.a'):
return [arg for arg in cmd if not arg.endswith('libcontrib-libs-cblas.a')]
return cmd
def parse_args():
parser = optparse.OptionParser()
parser.disable_interspersed_args()
parser.add_option('--musl', action='store_true')
parser.add_option('--custom-step')
parser.add_option('--python')
parser.add_option('--source-root')
parser.add_option('--clang-ver')
parser.add_option('--dynamic-cuda', action='store_true')
parser.add_option('--cuda-architectures',
help='List of supported CUDA architectures, separated by ":" (e.g. "sm_52:compute_70:lto_90a"')
parser.add_option('--nvprune-exe')
parser.add_option('--build-root')
parser.add_option('--arch')
parser.add_option('--linker-output')
parser.add_option('--whole-archive-peers', action='append')
parser.add_option('--whole-archive-libs', action='append')
return parser.parse_args()
if __name__ == '__main__':
opts, args = parse_args()
args = pcf.skip_markers(args)
cmd = fix_blas_resolving(args)
cmd = remove_excessive_flags(cmd)
if opts.musl:
cmd = fix_cmd_for_musl(cmd)
cmd = fix_sanitize_flag(cmd, opts)
if 'ld.lld' in str(cmd):
if '-fPIE' in str(cmd) or '-fPIC' in str(cmd):
# support explicit PIE
pass
else:
cmd.append('-Wl,-no-pie')
if opts.dynamic_cuda:
cmd = fix_cmd_for_dynamic_cuda(cmd)
elif opts.cuda_architectures:
cmd = prune_cuda_libraries(cmd, opts.cuda_architectures, opts.nvprune_exe, opts.build_root)
cmd = ProcessWholeArchiveOption(opts.arch, opts.whole_archive_peers, opts.whole_archive_libs).construct_cmd(cmd)
if opts.custom_step:
assert opts.python
subprocess.check_call([opts.python] + [opts.custom_step] + args)
supp, cmd = get_leaks_suppressions(cmd)
if supp:
src_file = "default_suppressions.cpp"
gen_default_suppressions(supp, src_file, opts.source_root)
cmd += [src_file]
if opts.linker_output:
stdout = open(opts.linker_output, 'w')
else:
stdout = sys.stdout
rc = subprocess.call(cmd, shell=False, stderr=sys.stderr, stdout=stdout)
sys.exit(rc)
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