crashpad/compat/compat.gyp

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# Copyright 2014 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.
{
'includes': [
'../build/crashpad.gypi',
],
'targets': [
{
'target_name': 'crashpad_compat',
'sources': [
'android/android/api-level.cc',
'android/android/api-level.h',
'android/dlfcn_internal.cc',
'android/dlfcn_internal.h',
'android/elf.h',
'android/linux/elf.h',
'android/linux/prctl.h',
'android/linux/ptrace.h',
'android/sched.h',
'android/sys/epoll.cc',
'android/sys/epoll.h',
'android/sys/mman.h',
'android/sys/mman_mmap.cc',
'android/sys/syscall.h',
'android/sys/user.h',
'linux/signal.h',
'linux/sys/ptrace.h',
'linux/sys/user.h',
mac: Switch from <AvailabilityMacros.h> to <Availability.h> The macOS 11.0 SDK, as of Xcode 12b6 12A8189n, has not updated <AvailabilityMacros.h> with a MAC_OS_X_VERSION_11_0 or MAC_OS_X_VERSION_10_16 constant. However, the <Availability.h> interface has been updated to provide both __MAC_11_0 and __MAC_10_16. <AvailabilityMacros.h>’s MAC_OS_X_VERSION_MAX_ALLOWED, which is supposed to identify the SDK version, is broken in the 11.0 SDK in that whenever the deployment target is set to 10.15 or earlier, the SDK will be mis-identified through this interface as 10.15. When using the <Availability.h> equivalent, __MAC_OS_X_VERSION_MAX_ALLOWED, the 11.0 SDK is identified as 10.16 (arguably it should be internally versioned as 11.0, but at least this interface allows it to be detected unambiguously.) It’s clear that the <AvailabilityMacros.h> interface provides no meaningful support for the macOS 11.0 SDK at all, but <Availability.h> does. <Availability.h> was introduced in the Mac OS X 10.5 SDK, so there is no relevant SDK version compatibility problem with this interface. Key differences between these interfaces for the purposes used by Crashpad: - <AvailabilityMacros.h> → <Availability.h> - MAC_OS_X_VERSION_MIN_REQUIRED (DT) → __MAC_OS_X_VERSION_MIN_REQUIRED - MAC_OS_X_VERSION_MAX_ALLOWED (SDK) → __MAC_OS_X_VERSION_MAX_ALLOWED - MAC_OS_X_VERSION_x_y → __MAC_x_y - <Availability.h> __MAC_OS_X_VERSION_* SDK/DT macros are only available when targeting macOS, while <AvailabilityMacros.h> MAC_OS_X_VERSION_* SDK/DT macros are available on all Apple platforms, which may be a source of confusion. (<Availability.h> __MAC_* macros do remain available on all Apple platforms.) This change was made mostly mechanically by: sed -i '' -Ee 's/<AvailabilityMacros.h>/<Availability.h>/g' \ $(git grep -E -l '<AvailabilityMacros.h>' | grep -v AvailabilityMacros.h) sed -i '' -Ee 's/(MAC_OS_X_VERSION_(MIN_REQUIRED|MAX_ALLOWED))/__\1/g' \ $(git grep -E -l 'MAC_OS_X_VERSION_(MIN_REQUIRED|MAX_ALLOWED)' | grep -v AvailabilityMacros.h) sed -i '' -Ee 's/(MAC_OS_X_VERSION_(10_[0-9]+))/__MAC_\2/g' \ $(git grep -E -l 'MAC_OS_X_VERSION_(10_[0-9]+)' | grep -v AvailabilityMacros.h) Bug: crashpad:347 Change-Id: Ibdcd7a6215a82f7060b7b67d98691f88454085fc Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2382421 Reviewed-by: Robert Sesek <rsesek@chromium.org> Commit-Queue: Mark Mentovai <mark@chromium.org>
2020-08-28 20:00:15 -04:00
'mac/Availability.h',
'mac/AvailabilityVersions.h',
'mac/kern/exc_resource.h',
'mac/mach/i386/thread_state.h',
'mac/mach/mach.h',
'mac/mach-o/loader.h',
'mac/sys/resource.h',
'non_mac/mach/mach.h',
'non_win/dbghelp.h',
'non_win/minwinbase.h',
'non_win/timezoneapi.h',
'non_win/verrsrc.h',
'non_win/windows.h',
'non_win/winnt.h',
'win/getopt.h',
'win/strings.cc',
'win/strings.h',
'win/sys/time.h',
'win/sys/types.h',
'win/time.cc',
'win/time.h',
'win/winbase.h',
'win/winnt.h',
'win/winternl.h',
],
'conditions': [
['OS=="mac"', {
'type': 'none',
'include_dirs': [
'mac',
],
'direct_dependent_settings': {
'include_dirs': [
'mac',
],
},
}, {
'include_dirs': [
'non_mac',
],
'direct_dependent_settings': {
'include_dirs': [
'non_mac',
],
},
}],
['OS=="win"', {
'type': 'static_library',
'include_dirs': [
'win',
],
'direct_dependent_settings': {
'include_dirs': [
'win',
],
},
'dependencies': [
'../third_party/getopt/getopt.gyp:getopt',
],
}, {
'include_dirs': [
'non_win',
],
'direct_dependent_settings': {
'include_dirs': [
'non_win',
],
},
}],
['OS=="android"', {
'type': 'static_library',
'include_dirs': [
'android',
'linux',
],
'direct_dependent_settings': {
'include_dirs': [
'android',
'linux',
],
},
android: Support mmap() with large file offsets and API < 21 Chrome (and therefore mini_chromium) has always built with _FILE_OFFSET_BITS=64, which is intended to enable a 64-bit off_t even for 32-bit programs. However, support was never present in Android with NDK traditional headers. The new NDK unified headers do recognize _FILE_OFFSET_BITS=64 and enable a 64-bit off_t, along with corresponding functions and system call wrappers. However, no mmap() wrapper supporting a 64-bit off_t for 32-bit programs was available prior to API 21 (Android 5.0 “Lollipop”), so when targeting older API levels, NDK headers do not proivde an mmap() declaration. This avoids silently truncating 64-bit off_t values to 32 bits. NDK r15b did make such an mmap() wrapper available (https://android.googlesource.com/platform/bionic/+/785b249df024), and it did silently truncate, but this was removed for r15c (https://android.googlesource.com/platform/bionic/+/00fedf587917). How should this work if _FILE_OFFSET_BITS is set to 64 and recent unified headers are in use? The strategy employed here is to provide an mmap() declaration in compat, with a 64-bit off_t. That mmap() will call to Bionic’s mmap64() wrapper if available (it’s available since Android 5.0 “Lollipop”). If unavailable, it implements the same logic that mmap64() does directly, which predominantly involves calling the __mmap2() system call. Bionic has always provided wrappers for __mmap2(). Additional reading: https://android.googlesource.com/platform/bionic/+/0bfcbaf4d069/docs/32-bit-abi.md#is-32_bit-1 https://github.com/android-ndk/ndk/issues/442 Bug: crashpad:30 Change-Id: I98c10e2eda773cb6f3d9eb8db9b8bfde43c885e7 Reviewed-on: https://chromium-review.googlesource.com/705674 Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2017-10-06 15:58:36 -04:00
'link_settings': {
'libraries': [
'-ldl',
],
},
}],
['OS=="linux"', {
'type': 'none',
'include_dirs': [
'linux',
],
'direct_dependent_settings': {
'include_dirs': [
'linux',
],
},
}],
],
},
],
}