Replace existing WITH_MULTIPROCESS build option which searches for an external
libmultiprocess installation and enables building multiprocess binaries option
with new, separate BUILD_MULTIPROCESS and WITH_LIBMULTIPROCESS options.
The BUILD_MULTIPROCESS option controls whether new multiprocess binaries
bitcoin-node and bitcoin-gui will be built.
The WITH_LIBMULTIPROCESS option controls whether to search for an external
libmultiprocess install. If it is true, the external install will be used,
otherwise the local git subtree src/ipc/libmultiprocess subtree will be used.
This option does not usually need to be used except when cross-compiling.
With newly introduced libmultiprocess subtree, there's no need for depends
system to download and track changes to the upstream repository.
Note that adding the libmultiprocess subtree does not allow dropping
libmultiprocess packages from the depends build, because libmultiprocess
includes a code generation tool called mpgen, and in cross-compiled builds,
bitcoin core's cmake build system doesn't have access to a native toolchain and
can't build mpgen itself, so the depends system (or the native environment if
not using depends) needs to supply it.
Move parts of the int_get_build_id into a new int_get_build_properties
function. There is no change in behavior. This just organizes assignments
better so some build properties can be used to help compute build ids in the
next commit.
The `libevent` package defaults to the "Release" build type, which
overrides our per-build-type optimization flags with `-O3`.
To prevent this behavior, set `CMAKE_BUILD_TYPE` to "None", consistent
with how other packages are handled.
01df180bfb depends: add mold & ld.lld to gen_id (fanquake)
d032ac8063 depends: add *FLAGS to gen_id (fanquake)
Pull request description:
The depends cache should be busted when flags change, the same as any other tooling change. I'd also like to start passing `*FLAGS` into depends inside the Guix env, which, without this change, doesn't bust the cache.
ACKs for top commit:
hebasto:
ACK 01df180bfb.
Tree-SHA512: 3809359fe763af9dde484e0c6bd3e262c4c09fcbe2f96ccf64194f5f9f840f5476b9c9929cf7bda7b8c14efeffd369cdb8c233625b79a944e1380df20698246f
31a0e5f090 depends: Qt 5.15.16 (fanquake)
Pull request description:
Contains a handful of miscellaneous bug fixes.
We can drop a few of our patches.
See https://github.com/qt/qtbase/compare/v5.15.14-lts-lgpl...v5.15.16-lts-lgpl.
ACKs for top commit:
hebasto:
ACK 31a0e5f090.
TheCharlatan:
ACK 31a0e5f090
Tree-SHA512: dd7b3332dd6ecb95189bc72364883425fb8869e03850791d2ee92555a37046c7abaaee16575a0396f1ce9674856b894563dbd36868c2cf46f9fee48028fd967b
According to the description for pkg-config, "pkgconf is a
replacement for pkg-config, providing additional functionality
while also maintaining compatibility. This package only provides
a dependency link to the pkgconf package to help with package
upgrades. It can be safely removed."
Thus several scripts and markdown files are updated.
We use `lld` when cross-compiling for macOS, and it's version should
be tied to LLVM. However someone compiling with GCC and `-fuse-ld=lld`
would not see a cache bust if the LLVM toolchain was updated.
We don't use `mold` directly, but I'm aware of it's usage in
infrastructure, along with depends, used to test the project.
The depends cache should be busted when flags change, the same as any
other tooling change. Id also like to start passing *FLAGS into depends
inside the Guix env, which, without this change, doesn't bust the cache.
On FreeBSD, the `shasum` utility is provided by the `perl5` port, which
is not part of the base system and must be installed separately.
Note that this requirement is currently not documented in
`depends/README.md`.
This change switches to using the `sha256sum` utility, which is included
in the base system.
This change resolves an issue where a missing space caused the value of
the `build_AR` variable to be concatenated with the "NM=" string. This
resulted in subsequent calls to `${AR}` and `${NM}` failing.
a10bb400e8 depends: Fix CXXFLAGS on NetBSD (Hennadii Stepanov)
Pull request description:
This PR corrects an issue where `CXXFLAGS` were mistakenly overridden by `CFLAGS`. This behaviour was introduced in 7e7b3e42fa (from https://github.com/bitcoin/bitcoin/pull/22380).
On the master branch:
```
$ gmake --no-print-directory -C depends print-x86_64_netbsd_CXXFLAGS
x86_64_netbsd_CXXFLAGS=-pipe -std=c11
```
With this PR:
```
$ gmake --no-print-directory -C depends print-x86_64_netbsd_CXXFLAGS
x86_64_netbsd_CXXFLAGS=-pipe -std=c++20
```
ACKs for top commit:
theuni:
utACK a10bb400e8
Tree-SHA512: 0c842db2965ebb0a58693394715922810235d9e5f2a7416fe258eb252dbd68ec04f90a0f7948abe938caf94a9194cca7deb53a08335c4404cce3a40c5cb44944
ee1128ead8 doc: update stack-clash-protection comment re mingw-w64 (fanquake)
bf47448f15 test: drop check for Windows < 10 (fanquake)
35b898c47f release: target Windows 10 or later (fanquake)
398754e70b depends: target Windows 10 when building for mingw-w64 (fanquake)
Pull request description:
Follows up to https://github.com/bitcoin/bitcoin/pull/31048#discussion_r1803165670.
We definitely cannot claim that Bitcoin Core is "supported and extensively tested on" on Windows 7.
Note that #30997 is also increasing the minimum required Windows version (for the GUI) to 10.
ACKs for top commit:
hodlinator:
cr-ACK ee1128ead8
davidgumberg:
ACK ee1128ead8
achow101:
ACK ee1128ead8
hebasto:
re-ACK ee1128ead8, only rebased, a commit message and a comment have been amended since my recent [review](https://github.com/bitcoin/bitcoin/pull/31172#pullrequestreview-2415452160).
TheCharlatan:
ACK ee1128ead8
Tree-SHA512: 245e0bac3d63414d919a1948661fef4ff79359faaacaf19d64abd91cc62e822797fb1cf3379e340bfdf9a85c0b88fd99a90eda450dd4218b6213ab78aefb1374
5a96767e3f depends, libevent: Do not install *.pc files and remove patches for them (Hennadii Stepanov)
ffda355b5a cmake, refactor: Move `HAVE_EVHTTP_...` to `libevent` interface (Hennadii Stepanov)
b619bdc330 cmake: Revamp `FindLibevent` module (Hennadii Stepanov)
Pull request description:
This PR generalizes the use of `find_package` / `pkg_check_modules`, prioritizing the former.
Addresses https://github.com/bitcoin/bitcoin/pull/30903#issuecomment-2444700876:
> We should also follow up with refactoring the libevent module, to more generically use CMake/pkg-config, rather than restricting the CMake usage to `vcpkg`. At that point, we'd likely be able to dump pkg-config for the depends path entirely.
Similar to https://github.com/bitcoin/bitcoin/pull/30903.
ACKs for top commit:
fanquake:
ACK 5a96767e3f
Tree-SHA512: 181020c16ccd2821e718c73f264badcdc5e62980c4a8d9691e759efe2ea00da2326e26308d1dcfdeac01e9e27930428ecace9f36941deee951b751b138d7266c
e2ba823671 depends: Specify CMake generator explicitly (Hennadii Stepanov)
Pull request description:
Building packages in depends implies using GNU Make. However, this assumption can be wrong in environments where the [`CMAKE_GENERATOR`](https://cmake.org/cmake/help/latest/envvar/CMAKE_GENERATOR.html) variable is set.
This change explicitly makes CMake use the "Unix Makefiles" generator.
Can be tested as follows:
```
$ env CMAKE_GENERATOR=Ninja make -C depends
```
ACKs for top commit:
fanquake:
ACK e2ba823671 - Going forward I think we should look at making this work without having to hard code anything.
Tree-SHA512: e14ed1cec192434fe089d36a83e1e150727a3b299fada80a61fa5b44b0c50e014a774ef1e6cd6df189e25f7a13042a20d4f9605f6ccd32e7782f10adaf5e788f
915640e191 depends: zeromq: don't install .pc files and remove patches for them (Cory Fields)
6b8a74463b cmake: Add `FindZeroMQ` module (Hennadii Stepanov)
Pull request description:
This PR introduces the `FindZeroMQ` module, which first attempts to find the `libzmq` library using CMake's `find_package()` and falls back to `pkg_check_modules()` if unsuccessful.
Addresses https://github.com/bitcoin/bitcoin/issues/30876 for the ZeroMQ package.
ACKs for top commit:
fanquake:
ACK 915640e191
Tree-SHA512: 2f17bae21be5d3f280a13425d22f5d1b2e23837a8aaf5ec89c433767509de030a42d598b261e102bdb5b860d8ede98013c124c3d25e081e956d4ee3a81b2584f
Building packages in depends implies using GNU Make. However, this
assumption can be wrong in environments where the `CMAKE_GENERATOR`
variable is set.
This change explicitly makes CMake use the "Unix Makefiles" generator.
40e5f26a3f mapport: remove dead code in DispatchMapPort (Antoine Poinsot)
38fdf7c1fb mapport: drop outdated comments (Antoine Poinsot)
b7b2435290 doc: add release note for #31130 (Antoine Poinsot)
1b6dec98da depends: drop miniupnpc (Antoine Poinsot)
953533d021 doc: remove mentions of UPnP (Antoine Poinsot)
94ad614482 ci: remove UPnP options (Antoine Poinsot)
a9598e5eaa build: drop miniupnpc dependency (Antoine Poinsot)
a5fcfb7385 interfaces: remove now unused 'use_upnp' arg from 'mapPort' (Antoine Poinsot)
038bbe7b20 daemon: remove UPnP support (Antoine Poinsot)
844770b05e qt: remove UPnP settings (Antoine Poinsot)
Pull request description:
This PR removes UPnP IGD support and drops our [miniupnp](https://github.com/miniupnp/miniupnp) dependency.
Miniupnpc is a C library (somewhat) maintained by a single person which had several vulnerabilities in the past (a couple dozens are listed [here](https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=miniupnp)), some of which directly affected our software ([RCE in 2015](https://bitcoincore.org/en/2024/07/03/disclose_upnp_rce/), [OOM in 2020](https://bitcoincore.org/en/2024/07/31/disclose-upnp-oom/)).
The main purpose of this functionality is to have more (non-data-center) reachable nodes on the network. For a non-technical user running Bitcoin Core at home, the software would automatically open a port on their router to receive incoming connections. This way, users not able to manually open a port on their router would still provide the network with more resources and enhance its diversity.
However, due to past vulnerabilities (and a worry about unknown future ones) in miniupnpc this feature was disabled by default in https://github.com/bitcoin/bitcoin/pull/6795. Having it disabled by default kills (most of?) the purpose of having this functionality in the first place: someone technical enough to understand the `-upnp` startup option or the "enable UPnP" setting is most likely able to open a port on his box in the first place.
In addition, laanwj implemented PCP with a NAT-PMP fallback directly in Bitcoin Core in https://github.com/bitcoin/bitcoin/pull/30043. If we ever want to re-enable automatic NAT traversal by default in Bitcoin Core, this is the best option (and in my opinion the only sane one). The NAT-PMP fallback makes it so compatibility shouldn't be (much of) an issue.
On balance, i believe that keeping this functionality and this barely maintained C dependency has higher costs than benefits. Therefore i propose that we get rid of it.
ACKs for top commit:
jarolrod:
ACK 40e5f26a3f
1440000bytes:
Code Review ACK 40e5f26a3f
laanwj:
Code review ACK 40e5f26a3f
i-am-yuvi:
Tested ACK 40e5f26a3f
Tree-SHA512: 9ea48662775510f5ec6de7af65790f7c8d211603398e9d8c634a86387be81b28081419a95b4d6680d3d7fe6a9f16cec99f16516548201dc7e49781909899a657
The description of `i686-pc-linux-gnu` and `x86_64-pc-linux-gnu` is
incomplete and inconsistent with the rest. Fix this. Also use "64 bit"
consistently instead of "64-bit".
Running Bitcoin Core on unsupported OSes may expose users to security
issues.
macOS Monterey 12 received its final security update (12.7.6) on July
2024. Apple classifies the hardware that can run macOS 12 at most as
"obsolete worldwide".
ae56b3230b depends: For mingw cross compile use -gcc-posix to prevent library conflict (laanwj)
Pull request description:
CMake parses some paths from the spec of the C compiler, assuming it will be the linker, resulting in the link to end up with `-L/usr/lib/gcc/x86_64-w64-mingw32/12-win32` on debian bookworm if both `-win32` and `-posix` variants are installed, and `-win32` is the default alternative.
This results in the wrong C++ library being linked, missing std::threads::hardware_concurrency and other threading functions.
To fix this, use the `-posix` variant of gcc as well when available. This fixes a regression compared to autotools, where this scenario worked.
ACKs for top commit:
theuni:
utACK ae56b3230b.
hebasto:
ACK ae56b3230b. I've tested on both Debian Bookworm and Ubuntu 24.04 with the `g++-mingw-w64-x86-64` package installed. The resulting CMake internal configuration appears more accurate. For instance, on Ubuntu 24.04, for the `bitcoin-tx` target, the diff in `build/src/CMakeFiles/bitcoin-tx.dir/linkLibs.rsp` looks as follows:
Tree-SHA512: f36fae50f91a29f565940494af9e46f47e219b99e329c0714ace47c516ac524602d5b6538a07488157bc2a71be7bac72176097fff3178129c5084bf6cc823167
