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crashpad/util/BUILD.gn
Scott Graham 7faa2ef898 Get CrashpadInfo address via a .note, rather than dynamic symtab 
Embeds the address of g_crashpad_info into a .note section (which is
readable by the generic code to read notes in ElfImageReader).
Unfortunately because the note section is in libclient.a, it would
normally be dropped at link time.  To avoid that, GetCrashpadInfo() has
a reference *back* to that section, which in turn forces the linker to
include it, allowing the note reader to find it at runtime.

Previously, it was necessary to have the embedder of "client" figure out
how to cause `g_crashpad_info` to appear in the final module's dynamic
symbol table.  With this new approach, there's no manual configuration
necessary, as it's not necessary for the symbol to be exported.

This is currently only implemented in the Linux module reader (and I
believe the current set of enabled tests aren't exercising it?) but it
will also be done this way for the Fuchsia implementation of
ModuleSnapshot.

Bug: crashpad:196
Change-Id: I599db5903bc98303130d11ad850ba9ceed3b801a
Reviewed-on: https://chromium-review.googlesource.com/912284
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2018-02-15 19:02:12 +00:00

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# Copyright 2015 The Crashpad Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import("../build/crashpad_buildconfig.gni")
if (crashpad_is_mac) {
if (crashpad_is_in_chromium) {
import("//build/config/sysroot.gni")
} else {
import("//third_party/mini_chromium/mini_chromium/build/sysroot.gni")
}
action_foreach("mig") {
script = "mach/mig.py"
sources = [
"$sysroot/usr/include/mach/exc.defs",
"$sysroot/usr/include/mach/mach_exc.defs",
"$sysroot/usr/include/mach/notify.defs",
"mach/child_port.defs",
]
outputs = [
"$target_gen_dir/mach/{{source_name_part}}User.c",
"$target_gen_dir/mach/{{source_name_part}}Server.c",
"$target_gen_dir/mach/{{source_name_part}}.h",
"$target_gen_dir/mach/{{source_name_part}}Server.h",
]
args = [ "{{source}}" ]
args += rebase_path(outputs, root_build_dir)
if (crashpad_is_in_chromium) {
if (!use_system_xcode) {
args += [
"--developer-dir",
hermetic_xcode_path,
]
}
}
if (sysroot != "") {
args += [
"--sdk",
sysroot,
]
}
args += [
"--include",
rebase_path("../compat/mac", root_build_dir),
]
}
}
static_library("util") {
sources = [
"file/delimited_file_reader.cc",
"file/delimited_file_reader.h",
"file/directory_reader.h",
"file/file_io.cc",
"file/file_io.h",
"file/file_reader.cc",
"file/file_reader.h",
"file/file_seeker.cc",
"file/file_seeker.h",
"file/file_writer.cc",
"file/file_writer.h",
"file/filesystem.h",
"file/scoped_remove_file.cc",
"file/scoped_remove_file.h",
"file/string_file.cc",
"file/string_file.h",
"misc/address_sanitizer.h",
"misc/address_types.h",
"misc/arraysize_unsafe.h",
"misc/as_underlying_type.h",
"misc/capture_context.h",
"misc/clock.h",
"misc/elf_note_types.h",
"misc/from_pointer_cast.h",
"misc/implicit_cast.h",
"misc/initialization_state.h",
"misc/initialization_state_dcheck.cc",
"misc/initialization_state_dcheck.h",
"misc/lexing.cc",
"misc/lexing.h",
"misc/metrics.cc",
"misc/metrics.h",
"misc/paths.h",
"misc/pdb_structures.cc",
"misc/pdb_structures.h",
"misc/random_string.cc",
"misc/random_string.h",
"misc/reinterpret_bytes.cc",
"misc/reinterpret_bytes.h",
"misc/scoped_forbid_return.cc",
"misc/scoped_forbid_return.h",
"misc/symbolic_constants_common.h",
"misc/time.cc",
"misc/time.h",
"misc/tri_state.h",
"misc/uuid.cc",
"misc/uuid.h",
"misc/zlib.cc",
"misc/zlib.h",
"net/http_body.cc",
"net/http_body.h",
"net/http_body_gzip.cc",
"net/http_body_gzip.h",
"net/http_headers.h",
"net/http_multipart_builder.cc",
"net/http_multipart_builder.h",
"net/http_transport.cc",
"net/http_transport.h",
"net/url.cc",
"net/url.h",
"numeric/checked_address_range.cc",
"numeric/checked_address_range.h",
"numeric/checked_range.h",
"numeric/checked_vm_address_range.h",
"numeric/in_range_cast.h",
"numeric/int128.h",
"numeric/safe_assignment.h",
"stdlib/aligned_allocator.cc",
"stdlib/aligned_allocator.h",
"stdlib/map_insert.h",
"stdlib/objc.h",
"stdlib/string_number_conversion.cc",
"stdlib/string_number_conversion.h",
"stdlib/strlcpy.cc",
"stdlib/strlcpy.h",
"stdlib/strnlen.cc",
"stdlib/strnlen.h",
"stdlib/thread_safe_vector.h",
"string/split_string.cc",
"string/split_string.h",
"synchronization/semaphore.h",
"thread/thread.cc",
"thread/thread.h",
"thread/thread_log_messages.cc",
"thread/thread_log_messages.h",
"thread/worker_thread.cc",
"thread/worker_thread.h",
]
if (crashpad_is_posix) {
sources += [
"file/directory_reader_posix.cc",
"file/file_io_posix.cc",
"file/filesystem_posix.cc",
"misc/clock_posix.cc",
"posix/close_stdio.cc",
"posix/close_stdio.h",
"posix/scoped_dir.cc",
"posix/scoped_dir.h",
"posix/scoped_mmap.cc",
"posix/scoped_mmap.h",
"posix/signals.cc",
"posix/signals.h",
"synchronization/semaphore_posix.cc",
"thread/thread_posix.cc",
]
if (!crashpad_is_fuchsia) {
sources += [
"posix/close_multiple.cc",
"posix/close_multiple.h",
"posix/double_fork_and_exec.cc",
"posix/double_fork_and_exec.h",
"posix/drop_privileges.cc",
"posix/drop_privileges.h",
"posix/process_info.h",
# These map signals to and from strings. While Fuchsia defines some of
# the common SIGx defines, signals are never raised on Fuchsia, so
# there's need to include this mapping code.
"posix/symbolic_constants_posix.cc",
"posix/symbolic_constants_posix.h",
]
}
}
if (crashpad_is_mac) {
sources += [
"mac/checked_mach_address_range.h",
"mac/launchd.h",
"mac/launchd.mm",
"mac/mac_util.cc",
"mac/mac_util.h",
"mac/service_management.cc",
"mac/service_management.h",
"mac/xattr.cc",
"mac/xattr.h",
"mach/child_port_handshake.cc",
"mach/child_port_handshake.h",
"mach/child_port_server.cc",
"mach/child_port_server.h",
"mach/child_port_types.h",
"mach/composite_mach_message_server.cc",
"mach/composite_mach_message_server.h",
"mach/exc_client_variants.cc",
"mach/exc_client_variants.h",
"mach/exc_server_variants.cc",
"mach/exc_server_variants.h",
"mach/exception_behaviors.cc",
"mach/exception_behaviors.h",
"mach/exception_ports.cc",
"mach/exception_ports.h",
"mach/exception_types.cc",
"mach/exception_types.h",
"mach/mach_extensions.cc",
"mach/mach_extensions.h",
"mach/mach_message.cc",
"mach/mach_message.h",
"mach/mach_message_server.cc",
"mach/mach_message_server.h",
"mach/notify_server.cc",
"mach/notify_server.h",
"mach/scoped_task_suspend.cc",
"mach/scoped_task_suspend.h",
"mach/symbolic_constants_mach.cc",
"mach/symbolic_constants_mach.h",
"mach/task_for_pid.cc",
"mach/task_for_pid.h",
"mach/task_memory.cc",
"mach/task_memory.h",
"misc/capture_context_mac.S",
"misc/clock_mac.cc",
"misc/paths_mac.cc",
"net/http_transport_mac.mm",
"posix/process_info_mac.cc",
"synchronization/semaphore_mac.cc",
]
sources += get_target_outputs(":mig")
}
if (crashpad_is_linux) {
sources += [ "net/http_transport_libcurl.cc" ]
}
if (crashpad_is_linux || crashpad_is_android) {
sources += [
"linux/address_types.h",
"linux/auxiliary_vector.cc",
"linux/auxiliary_vector.h",
"linux/checked_linux_address_range.h",
"linux/direct_ptrace_connection.cc",
"linux/direct_ptrace_connection.h",
"linux/exception_handler_client.cc",
"linux/exception_handler_client.h",
"linux/exception_handler_protocol.h",
"linux/exception_information.h",
"linux/memory_map.cc",
"linux/memory_map.h",
"linux/proc_stat_reader.cc",
"linux/proc_stat_reader.h",
"linux/ptrace_broker.cc",
"linux/ptrace_broker.h",
"linux/ptrace_client.cc",
"linux/ptrace_client.h",
"linux/ptrace_connection.h",
"linux/ptracer.cc",
"linux/ptracer.h",
"linux/scoped_ptrace_attach.cc",
"linux/scoped_ptrace_attach.h",
"linux/thread_info.cc",
"linux/thread_info.h",
"linux/traits.h",
"misc/capture_context_linux.S",
"misc/paths_linux.cc",
"posix/process_info_linux.cc",
"process/process_memory_linux.cc",
"process/process_memory_linux.h",
]
}
if (crashpad_is_linux || crashpad_is_android || crashpad_is_fuchsia) {
sources += [
"process/process_memory.cc",
"process/process_memory.h",
"process/process_memory_native.h",
# TODO: Port to all platforms.
"process/process_memory_range.cc",
"process/process_memory_range.h",
]
}
if (crashpad_is_win) {
sources += [
"file/directory_reader_win.cc",
"file/file_io_win.cc",
"file/filesystem_win.cc",
"misc/clock_win.cc",
"misc/paths_win.cc",
"misc/time_win.cc",
"net/http_transport_win.cc",
"synchronization/semaphore_win.cc",
"thread/thread_win.cc",
"win/address_types.h",
"win/checked_win_address_range.h",
"win/command_line.cc",
"win/command_line.h",
"win/critical_section_with_debug_info.cc",
"win/critical_section_with_debug_info.h",
"win/exception_handler_server.cc",
"win/exception_handler_server.h",
"win/get_function.cc",
"win/get_function.h",
"win/get_module_information.cc",
"win/get_module_information.h",
"win/handle.cc",
"win/handle.h",
"win/initial_client_data.cc",
"win/initial_client_data.h",
"win/module_version.cc",
"win/module_version.h",
"win/nt_internals.cc",
"win/nt_internals.h",
"win/ntstatus_logging.cc",
"win/ntstatus_logging.h",
"win/process_info.cc",
"win/process_info.h",
"win/process_structs.h",
"win/registration_protocol_win.cc",
"win/registration_protocol_win.h",
"win/safe_terminate_process.h",
"win/scoped_handle.cc",
"win/scoped_handle.h",
"win/scoped_local_alloc.cc",
"win/scoped_local_alloc.h",
"win/scoped_process_suspend.cc",
"win/scoped_process_suspend.h",
"win/scoped_set_event.cc",
"win/scoped_set_event.h",
"win/session_end_watcher.cc",
"win/session_end_watcher.h",
"win/termination_codes.h",
"win/xp_compat.h",
]
# There's no ml.exe yet in cross builds, so provide broken-but-not-asm
# versions of the functions defined in .asm files.
#
# CaptureContext() in capture_context_broken.cc just calls CHECK(false).
# SafeTerminateProcess() in safe_terminate_process.cc just calls regular
# TerminateProcess() without the protection against broken third-party
# patching of TerminateProcess().
#
# TODO(thakis): Use the .asm file in cross builds somehow,
# https://crbug.com/762167.
if (host_os == "win") {
sources += [
"misc/capture_context_win.asm",
"win/safe_terminate_process.asm",
]
} else {
sources += [
"misc/capture_context_broken.cc",
"win/safe_terminate_process_broken.cc",
]
}
}
if (crashpad_is_fuchsia) {
sources += [
"misc/paths_fuchsia.cc",
"net/http_transport_fuchsia.cc",
"process/process_memory_fuchsia.cc",
"process/process_memory_fuchsia.h",
]
}
public_configs = [ "..:crashpad_config" ]
# Include generated files starting with "util".
include_dirs = [ "$root_gen_dir/third_party/crashpad/crashpad" ]
public_deps = [
"../compat",
]
deps = [
"../third_party/mini_chromium:base",
"../third_party/zlib",
]
if (crashpad_is_mac) {
libs = [
"bsm",
"CoreFoundation.framework",
"Foundation.framework",
"IOKit.framework",
]
deps += [ ":mig" ]
include_dirs += [ "$root_build_dir/gen" ]
}
if (crashpad_is_linux) {
libs = [ "curl" ]
}
if (crashpad_is_win) {
libs = [
"mincore.lib",
"user32.lib",
"winhttp.lib",
]
if (current_cpu == "x86") {
asmflags = [ "/safeseh" ]
}
}
}
source_set("util_test") {
testonly = true
sources = [
"file/delimited_file_reader_test.cc",
"file/directory_reader_test.cc",
"file/file_io_test.cc",
"file/file_reader_test.cc",
"file/filesystem_test.cc",
"file/string_file_test.cc",
"misc/arraysize_unsafe_test.cc",
"misc/capture_context_test_util.h",
"misc/clock_test.cc",
"misc/from_pointer_cast_test.cc",
"misc/initialization_state_dcheck_test.cc",
"misc/initialization_state_test.cc",
"misc/paths_test.cc",
"misc/random_string_test.cc",
"misc/reinterpret_bytes_test.cc",
"misc/scoped_forbid_return_test.cc",
"misc/time_test.cc",
"misc/uuid_test.cc",
"net/http_body_gzip_test.cc",
"net/http_body_test.cc",
"net/http_body_test_util.cc",
"net/http_body_test_util.h",
"net/http_multipart_builder_test.cc",
"net/url_test.cc",
"numeric/checked_address_range_test.cc",
"numeric/checked_range_test.cc",
"numeric/in_range_cast_test.cc",
"numeric/int128_test.cc",
"stdlib/aligned_allocator_test.cc",
"stdlib/map_insert_test.cc",
"stdlib/string_number_conversion_test.cc",
"stdlib/strlcpy_test.cc",
"stdlib/strnlen_test.cc",
"stdlib/thread_safe_vector_test.cc",
"string/split_string_test.cc",
"synchronization/semaphore_test.cc",
"thread/thread_log_messages_test.cc",
"thread/thread_test.cc",
"thread/worker_thread_test.cc",
]
if (!crashpad_is_fuchsia) {
sources += [
# No NativeCPUContext defined for Fuchsia yet.
# https://crashpad.chromium.org/bug/196.
"misc/capture_context_test.cc",
]
}
if (!crashpad_is_android && !crashpad_is_fuchsia) {
# Android and Fuchsia will each require an HTTPTransport implementation
# (libcurl isn’t in either’s SDK) and a solution to
# http_transport_test_server.py, because Python isn’t available on either.
# The latter could be ported to non-Python, or the test server could run on
# the build host with a method to forward requests from the device to the
# host.
#
# TODO(scottmg): Fuchsia will also require an implementation of
# MultiprocessExec for testing.
sources += [ "net/http_transport_test.cc" ]
}
if (crashpad_is_posix) {
if (!crashpad_is_fuchsia) {
sources += [
"posix/process_info_test.cc",
"posix/signals_test.cc",
"posix/symbolic_constants_posix_test.cc",
]
}
sources += [ "posix/scoped_mmap_test.cc" ]
}
if (crashpad_is_mac) {
sources += [
"mac/launchd_test.mm",
"mac/mac_util_test.mm",
"mac/service_management_test.mm",
"mac/xattr_test.cc",
"mach/child_port_handshake_test.cc",
"mach/child_port_server_test.cc",
"mach/composite_mach_message_server_test.cc",
"mach/exc_client_variants_test.cc",
"mach/exc_server_variants_test.cc",
"mach/exception_behaviors_test.cc",
"mach/exception_ports_test.cc",
"mach/exception_types_test.cc",
"mach/mach_extensions_test.cc",
"mach/mach_message_server_test.cc",
"mach/mach_message_test.cc",
"mach/notify_server_test.cc",
"mach/scoped_task_suspend_test.cc",
"mach/symbolic_constants_mach_test.cc",
"mach/task_memory_test.cc",
"misc/capture_context_test_util_mac.cc",
]
}
if (crashpad_is_linux || crashpad_is_android) {
sources += [
"linux/auxiliary_vector_test.cc",
"linux/memory_map_test.cc",
"linux/proc_stat_reader_test.cc",
"linux/ptrace_broker_test.cc",
"linux/ptracer_test.cc",
"linux/scoped_ptrace_attach_test.cc",
"misc/capture_context_test_util_linux.cc",
]
}
if (crashpad_is_linux || crashpad_is_android || crashpad_is_fuchsia) {
sources += [
# TODO: Port to all platforms.
"process/process_memory_range_test.cc",
"process/process_memory_test.cc",
]
}
if (crashpad_is_win) {
sources += [
"misc/capture_context_test_util_win.cc",
"win/command_line_test.cc",
"win/critical_section_with_debug_info_test.cc",
"win/exception_handler_server_test.cc",
"win/get_function_test.cc",
"win/handle_test.cc",
"win/initial_client_data_test.cc",
"win/process_info_test.cc",
"win/registration_protocol_win_test.cc",
"win/safe_terminate_process_test.cc",
"win/scoped_process_suspend_test.cc",
"win/session_end_watcher_test.cc",
]
}
data = [
"net/http_transport_test_server.py",
"net/testdata/",
]
deps = [
":util",
"../client",
"../compat",
"../test",
"../third_party/gtest:gmock",
"../third_party/gtest:gtest",
"../third_party/mini_chromium:base",
"../third_party/zlib",
]
if (crashpad_is_mac) {
libs = [ "Foundation.framework" ]
}
if (crashpad_is_win) {
libs = [
"rpcrt4.lib",
"dbghelp.lib",
]
data_deps = [
":crashpad_util_test_process_info_test_child",
":crashpad_util_test_safe_terminate_process_test_child",
]
}
}
if (crashpad_is_win) {
executable("crashpad_util_test_process_info_test_child") {
testonly = true
sources = [
"win/process_info_test_child.cc",
]
}
executable("crashpad_util_test_safe_terminate_process_test_child") {
testonly = true
sources = [
"win/safe_terminate_process_test_child.cc",
]
}
}
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