dash/depends
Wladimir J. van der Laan 0e8a4d54a4
Merge #21064: refactor: use std::shared_mutex & remove Boost Thread
060a2a64d40d75fecb60b7d2b9946a67e46aa6fc ci: remove boost thread installation (fanquake)
06e1d7d81d5a56d136c6fc88f09a2b0654a164f9 build: don't build or use Boost Thread (fanquake)
7097add83c8596f81be9edd66971ffd2486357eb refactor: replace Boost shared_mutex with std shared_mutex in sigcache (fanquake)
8e55981ef834490c438436719f95cbaf888c4914 refactor: replace Boost shared_mutex with std shared_mutex in cuckoocache tests (fanquake)

Pull request description:

  This replaces `boost::shared_mutex` and `boost::unique_lock` with [`std::shared_mutex`](https://en.cppreference.com/w/cpp/thread/shared_mutex) & [`std::unique_lock`](https://en.cppreference.com/w/cpp/thread/unique_lock).

  Even though [some concerns were raised](https://github.com/bitcoin/bitcoin/issues/16684#issuecomment-726214696) in #16684 with regard to `std::shared_mutex` being unsafe to use across some glibc versions, I still think this change is an improvement. As I mentioned in #21022, I also think trying to restrict standard library feature usage based on bugs in glibc is not only hard to do, but it's not currently clear exactly how we do that in practice (does it also extend to patching out use in our dependencies, should we be implementing more runtime checks for features we are using, when do we consider an affected glibc "old enough" not to worry about? etc). If you take a look through the [glibc bug tracker](https://sourceware.org/bugzilla/describecomponents.cgi?product=glibc) you'll no doubt find plenty of (active) bug reports for standard library code we already using. Obviously not to say we shouldn't try and avoid buggy code where possible.

  Two other points:

  [Cory mentioned in #21022](https://github.com/bitcoin/bitcoin/pull/21022#issuecomment-769274179):
  > It also seems reasonable to me to worry that boost hits the same underlying glibc bug, and we've just not happened to trigger the right conditions yet.

  Moving away from Boost to the standard library also removes the potential for differences related to Boosts configuration. Boost has multiple versions of `shared_mutex`, and what you end up using, and what it's backed by depends on:
  * The version of Boost.
  * The platform you're building for.
  * Which version of `BOOST_THREAD_VERSION` is defined: (2,3,4 or 5) default=2. (see [here](https://www.boost.org/doc/libs/1_70_0/doc/html/thread/build.html#thread.build.configuration) for some of the differences).
  * Is `BOOST_THREAD_V2_SHARED_MUTEX` defined? (not by default). If so, you might get the ["less performant, but more robust"](https://github.com/boostorg/thread/issues/230#issuecomment-475937761) version of `shared_mutex`.

  A lot of these factors are eliminated by our use of depends, but users will have varying configurations. It's also not inconceivable to think that a distro, or some package manager might start defining something like `BOOST_THREAD_VERSION=3`. Boost tried to change the default from 2 to 3 at one point.

  With this change, we no longer use Boost Thread, so this PR also removes it from depends, the build system, CI etc.

  Previous similar PRs were #19183 & #20922. The authors are included in the commits here.
  Also related to #21022 - pthread sanity checking.

ACKs for top commit:
  laanwj:
    Code review ACK 060a2a64d40d75fecb60b7d2b9946a67e46aa6fc
  vasild:
    ACK 060a2a64d40d75fecb60b7d2b9946a67e46aa6fc

Tree-SHA512: 572d14d8c9de20bc434511f20d3f431836393ff915b2fe9de5a47a02dca76805ad5c3fc4cceecb4cd43f3ba939a0508178c4e60e62abdbaaa6b3e8db20b75b03
2024-01-16 09:29:52 -06:00
..
builders Merge bitcoin/bitcoin#23955: build: add support for NetBSD in depends 2023-12-26 22:26:21 -06:00
hosts Merge bitcoin/bitcoin#24604: build: fix copypasta in OpenBSD C{XX} flags 2024-01-01 17:48:19 -06:00
packages Merge #21064: refactor: use std::shared_mutex & remove Boost Thread 2024-01-16 09:29:52 -06:00
patches Merge bitcoin/bitcoin#24134: build: Fix zeromq package when cross-compiling 2024-01-13 19:32:29 -06:00
.gitignore Merge #17678: depends: Support for S390X and POWER targets 2023-04-25 23:14:25 +03:00
config.guess Merge bitcoin/bitcoin#22071: depends: latest config.guess and config.sub 2021-09-24 13:32:15 -04:00
config.site.in fix: linter error in depends/config.site.in (#5812) 2024-01-10 15:07:40 -06:00
config.sub Merge bitcoin/bitcoin#22071: depends: latest config.guess and config.sub 2021-09-24 13:32:15 -04:00
description.md trivial: add some missing dashifications (#4772) 2022-04-19 09:09:42 +03:00
funcs.mk Merge bitcoin/bitcoin#24285: build, refactor: Drop useless call Make function 2024-01-02 11:17:48 -06:00
gen_id Merge bitcoin/bitcoin#21427: depends: Fix id_string invocations 2023-04-14 23:34:14 -05:00
Makefile merge bitcoin#21629: fix configuring when building depends with NO_BDB=1 2024-01-10 12:11:19 -06:00
packages.md Merge #16691: doc: improve depends prefix documentation 2023-04-04 12:45:27 -05:00
README.md (partial) Merge #17934: doc: Use CONFIG_SITE variable instead of --prefix option 2023-12-03 20:32:22 -06:00

Usage

To build dependencies for the current arch+OS:

make

To build for another arch/OS:

make HOST=host-platform-triplet

For example:

make HOST=x86_64-w64-mingw32 -j4

Dash Core's configure script by default will ignore the depends output. In order for it to pick up libraries, tools, and settings from the depends build, you must set the CONFIG_SITE environment variable to point to a config.site settings file. In the above example, a file named depends/x86_64-w64-mingw32/share/config.site will be created. To use it during compilation:

CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure

The default install prefix when using config.site is --prefix=depends/<host-platform-triplet>, so depends build outputs will be installed in that location.

Common host-platform-triplets for cross compilation are:

  • i686-pc-linux-gnu for Linux 32 bit
  • x86_64-pc-linux-gnu for x86 Linux
  • x86_64-w64-mingw32 for Win64
  • x86_64-apple-darwin for macOS
  • arm64-apple-darwin for ARM macOS
  • arm-linux-gnueabihf for Linux ARM 32 bit
  • aarch64-linux-gnu for Linux ARM 64 bit
  • powerpc64-linux-gnu for Linux POWER 64-bit (big endian)
  • powerpc64le-linux-gnu for Linux POWER 64-bit (little endian)
  • riscv32-linux-gnu for Linux RISC-V 32 bit
  • riscv64-linux-gnu for Linux RISC-V 64 bit
  • s390x-linux-gnu for Linux S390X
  • armv7a-linux-android for Android ARM 32 bit
  • aarch64-linux-android for Android ARM 64 bit
  • x86_64-linux-android for Android x86 64 bit

The paths are automatically configured and no other options are needed unless targeting Android.

Install the required dependencies: Ubuntu & Debian

For macOS cross compilation

sudo apt-get install curl bsdmainutils cmake libcap-dev libz-dev libbz2-dev python3-setuptools libtinfo5 xorriso

Note: You must obtain the macOS SDK before proceeding with a cross-compile. Under the depends directory, create a subdirectory named SDKs. Then, place the extracted SDK under this new directory. For more information, see SDK Extraction.

For Win64 cross compilation

For linux (including i386, ARM) cross compilation

Common linux dependencies:

sudo apt-get install make automake curl g++-multilib libtool binutils-gold bsdmainutils pkg-config python3 patch bison

For linux ARM cross compilation:

sudo apt-get install g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf

For linux AARCH64 cross compilation:

sudo apt-get install g++-aarch64-linux-gnu binutils-aarch64-linux-gnu

For linux POWER 64-bit cross compilation (there are no packages for 32-bit):

sudo apt-get install g++-powerpc64-linux-gnu binutils-powerpc64-linux-gnu g++-powerpc64le-linux-gnu binutils-powerpc64le-linux-gnu

For linux RISC-V 64-bit cross compilation (there are no packages for 32-bit):

sudo apt-get install g++-riscv64-linux-gnu binutils-riscv64-linux-gnu

RISC-V known issue: gcc-7.3.0 and gcc-7.3.1 result in a broken test_dash executable (see https://github.com/bitcoin/bitcoin/pull/13543), this is apparently fixed in gcc-8.1.0.

For linux S390X cross compilation:

sudo apt-get install g++-s390x-linux-gnu binutils-s390x-linux-gnu

Install the required dependencies: OpenBSD

pkg_add bash gtar

Dependency Options

The following can be set when running make: make FOO=bar

  • SOURCES_PATH: Downloaded sources will be placed here
  • BASE_CACHE: Built packages will be placed here
  • SDK_PATH: Path where SDKs can be found (used by macOS)
  • FALLBACK_DOWNLOAD_PATH: If a source file can't be fetched, try here before giving up
  • NO_QT: Don't download/build/cache Qt and its dependencies
  • NO_QR: Don't download/build/cache packages needed for enabling qrencode
  • NO_ZMQ: Don't download/build/cache packages needed for enabling ZeroMQ
  • NO_WALLET: Don't download/build/cache libs needed to enable the wallet
  • NO_BDB: Don't download/build/cache BerkeleyDB
  • NO_SQLITE: Don't download/build/cache SQLite
  • NO_UPNP: Don't download/build/cache packages needed for enabling UPnP
  • NO_NATPMP: Don't download/build/cache packages needed for enabling NAT-PMP
  • DEBUG: Disable some optimizations and enable more runtime checking
  • HOST_ID_SALT: Optional salt to use when generating host package ids
  • BUILD_ID_SALT: Optional salt to use when generating build package ids
  • FORCE_USE_SYSTEM_CLANG: (EXPERTS ONLY) When cross-compiling for macOS, use Clang found in the system's $PATH rather than the default prebuilt release of Clang from llvm.org. Clang 8 or later is required.

If some packages are not built, for example make NO_WALLET=1, the appropriate options will be passed to Dash Core's configure. In this case, --disable-wallet.

Additional targets

download: run 'make download' to fetch all sources without building them
download-osx: run 'make download-osx' to fetch all sources needed for macOS builds
download-win: run 'make download-win' to fetch all sources needed for win builds
download-linux: run 'make download-linux' to fetch all sources needed for linux builds

Android

Before proceeding with an Android build one needs to get the Android SDK and use the "SDK Manager" tool to download the NDK and one or more "Platform packages" (these are Android versions and have a corresponding API level). In order to build ANDROID_API_LEVEL (API level corresponding to the Android version targeted, e.g. Android 9.0 Pie is 28 and its "Platform package" needs to be available) and ANDROID_TOOLCHAIN_BIN (path to toolchain binaries depending on the platform the build is being performed on) need to be set.

API levels from 24 to 29 have been tested to work.

If the build includes Qt, environment variables ANDROID_SDK and ANDROID_NDK need to be set as well but can otherwise be omitted. This is an example command for a default build with no disabled dependencies:

ANDROID_SDK=/home/user/Android/Sdk ANDROID_NDK=/home/user/Android/Sdk/ndk-bundle make HOST=aarch64-linux-android ANDROID_API_LEVEL=28 ANDROID_TOOLCHAIN_BIN=/home/user/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin

Other documentation