| #!/usr/bin/env python3 |
| # Copyright 2018 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """Removes code coverage flags from invocations of the Clang C/C++ compiler. |
| |
| If the GN arg `use_clang_coverage=true`, this script will be invoked by default. |
| GN will add coverage instrumentation flags to almost all source files. |
| |
| This script is used to remove instrumentation flags from a subset of the source |
| files. By default, it will not remove flags from any files. If the option |
| --files-to-instrument is passed, this script will remove flags from all files |
| except the ones listed in --files-to-instrument. |
| |
| This script also contains hard-coded exclusion lists of files to never |
| instrument, indexed by target operating system. Files in these lists have their |
| flags removed in both modes. The OS can be selected with --target-os. |
| |
| This script also contains hard-coded force lists of files to always instrument, |
| indexed by target operating system. Files in these lists never have their flags |
| removed in either mode. The OS can be selected with --target-os. |
| |
| The order of precedence is: force list, exclusion list, --files-to-instrument. |
| |
| The path to the coverage instrumentation input file should be relative to the |
| root build directory, and the file consists of multiple lines where each line |
| represents a path to a source file, and the specified paths must be relative to |
| the root build directory. e.g. ../../base/task/post_task.cc for build |
| directory 'out/Release'. The paths should be written using OS-native path |
| separators for the current platform. |
| |
| One caveat with this compiler wrapper is that it may introduce unexpected |
| behaviors in incremental builds when the file path to the coverage |
| instrumentation input file changes between consecutive runs, so callers of this |
| script are strongly advised to always use the same path such as |
| "${root_build_dir}/coverage_instrumentation_input.txt". |
| |
| It's worth noting on try job builders, if the contents of the instrumentation |
| file changes so that a file doesn't need to be instrumented any longer, it will |
| be recompiled automatically because if try job B runs after try job A, the files |
| that were instrumented in A will be updated (i.e., reverted to the checked in |
| version) in B, and so they'll be considered out of date by ninja and recompiled. |
| |
| Example usage: |
| clang_code_coverage_wrapper.py \\ |
| --files-to-instrument=coverage_instrumentation_input.txt |
| |
| Siso implements the same logic in |
| build/config/siso/clang_code_coverage_wrapper.star, which avoids the wrapper |
| invocations for remote execution and performance improvement. |
| Please update the Siso starlark file when updating this file. |
| """ |
| # LINT.IfChange |
| |
| import argparse |
| import os |
| import subprocess |
| import sys |
| |
| # Flags used to enable coverage instrumentation. |
| # Flags should be listed in the same order that they are added in |
| # build/config/coverage/BUILD.gn |
| _COVERAGE_FLAGS = [ |
| '-fprofile-instr-generate', |
| '-fcoverage-mapping', |
| '-mllvm', |
| '-runtime-counter-relocation=true', |
| # Following experimental flags remove unused header functions from the |
| # coverage mapping data embedded in the test binaries, and the reduction |
| # of binary size enables building Chrome's large unit test targets on |
| # MacOS. Please refer to crbug.com/796290 for more details. |
| '-mllvm', |
| '-limited-coverage-experimental=true', |
| ] |
| |
| # Files that should not be built with coverage flags by default. |
| _DEFAULT_COVERAGE_EXCLUSION_LIST = [ |
| # These files caused perf regressions, resulting in time-outs on some bots. |
| # TODO(https://crbug.com/356570413): Remove when the bug is fixed. |
| '../../base/allocator/partition_allocator/src/partition_alloc/address_pool_manager_bitmap.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/address_pool_manager.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/address_pool_manager_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/address_space_randomization.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/address_space_randomization_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/allocation_guard.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/compressed_pointer.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/compressed_pointer_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/dangling_raw_ptr_checks.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/extended_api.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/freeslot_bitmap_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/gwp_asan_support.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/hardening_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/internal_allocator.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/lightweight_quarantine.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/lightweight_quarantine_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/memory_reclaimer.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/memory_reclaimer_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/oom_callback.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/oom.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/page_allocator.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/page_allocator_internals_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/page_allocator_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_address_space.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/apple/mach_logging.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/bits_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/check.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/component_export_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/cpu.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/cpu_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/alias.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/proc_maps_linux.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace_android.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace_linux.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace_mac.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/debug/stack_trace_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/files/file_path.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/files/file_path_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/files/file_util_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/fuchsia/fuchsia_logging.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/fuchsia/fuchsia_logging_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/logging.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/logging_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/log_message.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/memory/page_size_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/memory/page_size_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/memory/ref_counted.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/native_library.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/native_library_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/native_library_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/no_destructor_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/posix/safe_strerror.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/process/process_handle_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/process/process_handle_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/rand_util.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/rand_util_fuchsia.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/rand_util_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/rand_util_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/rand_util_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/scoped_clear_last_error_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/scoped_clear_last_error_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/cstring_builder.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/cstring_builder_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/safe_sprintf.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/safe_sprintf_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/stringprintf.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/stringprintf_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/string_util.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/strings/string_util_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/thread_annotations_pa_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_android_for_testing.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_fuchsia_for_testing.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_linux_for_testing.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_posix_for_testing.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/threading/platform_thread_win_for_testing.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time_conversion_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time_fuchsia.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time_now_posix.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time_override.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_base/time/time_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_hooks.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_perftest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_alloc_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_bucket.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_dcheck_helper.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_freelist_entry.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_lock_perftest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_lock_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_oom.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_page.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_root.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_stats.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/partition_tls_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/empty.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/instance_tracer.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/raw_ptr_asan_unowned_impl.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/raw_ptr_backup_ref_impl.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/raw_ptr_hookable_impl.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/raw_ptr_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/pointers/raw_ref_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/random.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/reservation_offset_table.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/reverse_bytes_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_android.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_apple.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_apple_zoned_malloc.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_glibc.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_linker_wrapped_symbols.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_partition_alloc.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_partition_alloc_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_partition_alloc_with_advanced_checks.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_default_dispatch_to_winheap.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_dispatch_to_noop_on_free.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_functions_win_component.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_win_component.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/allocator_shim_win_static.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/empty.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/malloc_zone_functions_apple.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/malloc_zone_functions_apple_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/winheap_stubs_win.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/shim/winheap_stubs_win_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/slot_start_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/spinning_mutex.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/asm/arm64/push_registers_asm.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/asm/arm/push_registers_asm.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/asm/riscv64/push_registers_asm.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/asm/x64/push_registers_asm.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/asm/x86/push_registers_asm.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/stack.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/stack/stack_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/tagging.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/tagging_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/thread_cache.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/thread_cache_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/thread_isolation/pkey.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/thread_isolation/pkey_unittest.cc', #pylint: disable=line-too-long |
| '../../base/allocator/partition_allocator/src/partition_alloc/thread_isolation/thread_isolation.cc', #pylint: disable=line-too-long |
| ] |
| |
| # Map of exclusion lists indexed by target OS. |
| # If no target OS is defined, or one is defined that doesn't have a specific |
| # entry, use _DEFAULT_COVERAGE_EXCLUSION_LIST. |
| _COVERAGE_EXCLUSION_LIST_MAP = { |
| 'android': [ |
| # This file caused webview native library failed on arm64. |
| '../../device/gamepad/dualshock4_controller.cc', |
| ] + _DEFAULT_COVERAGE_EXCLUSION_LIST, |
| 'fuchsia': [ |
| # TODO(crbug.com/40167659): These files caused clang to crash while |
| # compiling them. |
| '../../third_party/skia/src/core/SkOpts.cpp', |
| '../../third_party/skia/src/opts/SkOpts_hsw.cpp', |
| '../../third_party/skia/third_party/skcms/skcms.cc', |
| ] + _DEFAULT_COVERAGE_EXCLUSION_LIST, |
| 'linux': [ |
| # These files caused a static initializer to be generated, which |
| # shouldn't. |
| # TODO(crbug.com/41474559): Remove when the bug is fixed. |
| '../../chrome/browser/media/router/providers/cast/cast_internal_message_util.cc', #pylint: disable=line-too-long |
| '../../components/media_router/common/providers/cast/channel/cast_channel_enum.cc', #pylint: disable=line-too-long |
| '../../components/media_router/common/providers/cast/channel/cast_message_util.cc', #pylint: disable=line-too-long |
| '../../components/media_router/common/providers/cast/cast_media_source.cc', #pylint: disable=line-too-long |
| '../../ui/events/keycodes/dom/keycode_converter.cc', |
| ] + _DEFAULT_COVERAGE_EXCLUSION_LIST, |
| 'chromeos': [ |
| # These files caused clang to crash while compiling them. They are |
| # excluded pending an investigation into the underlying compiler bug. |
| '../../third_party/webrtc/p2p/base/p2p_transport_channel.cc', |
| '../../third_party/icu/source/common/uts46.cpp', |
| '../../third_party/icu/source/common/ucnvmbcs.cpp', |
| '../../base/android/android_image_reader_compat.cc', |
| ] + _DEFAULT_COVERAGE_EXCLUSION_LIST, |
| } |
| |
| # Map of force lists indexed by target OS. |
| _COVERAGE_FORCE_LIST_MAP = { |
| # clang_profiling.cc refers to the symbol `__llvm_profile_dump` from the |
| # profiling runtime. In a partial coverage build, it is possible for a |
| # binary to include clang_profiling.cc but have no instrumented files, thus |
| # causing an unresolved symbol error because the profiling runtime will not |
| # be linked in. Therefore we force coverage for this file to ensure that |
| # any target that includes it will also get the profiling runtime. |
| 'win': [r'..\..\base\test\clang_profiling.cc'], |
| # TODO(crbug.com/40154378) We're seeing runtime LLVM errors in mac-rel when |
| # no files are changed, so we suspect that this is similar to the other |
| # problem with clang_profiling.cc on Windows. The TODO here is to force |
| # coverage for this specific file on ALL platforms, if it turns out to fix |
| # this issue on Mac as well. It's the only file that directly calls |
| # `__llvm_profile_dump` so it warrants some special treatment. |
| 'mac': ['../../base/test/clang_profiling.cc'], |
| } |
| |
| |
| def _remove_flags_from_command(command): |
| # We need to remove the coverage flags for this file, but we only want to |
| # remove them if we see the exact sequence defined in _COVERAGE_FLAGS. |
| # That ensures that we only remove the flags added by GN when |
| # "use_clang_coverage" is true. Otherwise, we would remove flags set by |
| # other parts of the build system. |
| start_flag = _COVERAGE_FLAGS[0] |
| num_flags = len(_COVERAGE_FLAGS) |
| start_idx = 0 |
| try: |
| while True: |
| idx = command.index(start_flag, start_idx) |
| if command[idx:idx + num_flags] == _COVERAGE_FLAGS: |
| del command[idx:idx + num_flags] |
| # There can be multiple sets of _COVERAGE_FLAGS. All of these need to be |
| # removed. |
| start_idx = idx |
| else: |
| start_idx = idx + 1 |
| except ValueError: |
| pass |
| |
| |
| def main(): |
| arg_parser = argparse.ArgumentParser() |
| arg_parser.usage = __doc__ |
| arg_parser.add_argument( |
| '--files-to-instrument', |
| type=str, |
| help='Path to a file that contains a list of file names to instrument.') |
| arg_parser.add_argument( |
| '--target-os', required=False, help='The OS to compile for.') |
| arg_parser.add_argument('args', nargs=argparse.REMAINDER) |
| parsed_args = arg_parser.parse_args() |
| |
| if (parsed_args.files_to_instrument and |
| not os.path.isfile(parsed_args.files_to_instrument)): |
| raise Exception('Path to the coverage instrumentation file: "%s" doesn\'t ' |
| 'exist.' % parsed_args.files_to_instrument) |
| |
| compile_command = parsed_args.args |
| if not any('clang' in s for s in compile_command): |
| return subprocess.call(compile_command) |
| |
| target_os = parsed_args.target_os |
| |
| try: |
| # The command is assumed to use Clang as the compiler, and the path to the |
| # source file is behind the -c argument, and the path to the source path is |
| # relative to the root build directory. For example: |
| # clang++ -fvisibility=hidden -c ../../base/files/file_path.cc -o \ |
| # obj/base/base/file_path.o |
| # On Windows, clang-cl.exe uses /c instead of -c. |
| source_flag = '/c' if target_os == 'win' else '-c' |
| source_flag_index = compile_command.index(source_flag) |
| except ValueError: |
| print('%s argument is not found in the compile command.' % source_flag) |
| raise |
| |
| if source_flag_index + 1 >= len(compile_command): |
| raise Exception('Source file to be compiled is missing from the command.') |
| |
| # On Windows, filesystem paths should use '\', but GN creates build commands |
| # that use '/'. We invoke os.path.normpath to ensure that the path uses the |
| # correct separator for the current platform (i.e. '\' on Windows and '/' |
| # otherwise). |
| compile_source_file = os.path.normpath(compile_command[source_flag_index + 1]) |
| extension = os.path.splitext(compile_source_file)[1] |
| if not extension in ['.c', '.cc', '.cpp', '.cxx', '.m', '.mm', '.S']: |
| raise Exception('Invalid source file %s found' % compile_source_file) |
| exclusion_list = _COVERAGE_EXCLUSION_LIST_MAP.get( |
| target_os, _DEFAULT_COVERAGE_EXCLUSION_LIST) |
| force_list = _COVERAGE_FORCE_LIST_MAP.get(target_os, []) |
| |
| should_remove_flags = False |
| if compile_source_file not in force_list: |
| if compile_source_file in exclusion_list: |
| should_remove_flags = True |
| elif parsed_args.files_to_instrument: |
| with open(parsed_args.files_to_instrument) as f: |
| if compile_source_file not in f.read(): |
| should_remove_flags = True |
| |
| if should_remove_flags: |
| _remove_flags_from_command(compile_command) |
| |
| return subprocess.call(compile_command) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |
| |
| # LINT.ThenChange(/build/config/siso/clang_code_coverage_wrapper.star) |
