This produces false positives, such as:
```bash
torcontrol.cpp: In static member function ‘static void TorControlConnection::readcb(bufferevent*, void*)’:
torcontrol.cpp:94:28: error: ‘result’ may be used uninitialized [-Werror=maybe-uninitialized]
94 | self->message.code = ToIntegral<int>(s.substr(0, 3)).value_or(0);
| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./netaddress.h:18,
from ./torcontrol.h:11,
from torcontrol.cpp:6:
./util/strencodings.h:184:7: note: ‘result’ was declared here
184 | T result;
| ^~~~~~
cc1plus: all warnings being treated as errors
make[2]: *** [Makefile:11088: libbitcoin_node_a-torcontrol.o] Error 1
```
`noreturn` attributes have been added to the mingw-w64 headers, meaning
that from 11.0.0 onwards, you'll no-longer see `-Wreturn-type` warnings
when using assert(false):
1690994f51.
Add -Wno-return-type to the Windows CI, where is should have been all
along, and document why it's required. This can be dropped when we are
using the fixed version of the mingw-w64 headers there.
Drop the -Werror -Wno-return-type special case from our build system.
-Wreturn-type is on by default in Clang and GCC.
DOCKER in names is confusingly used as synonym for "image", "container",
and "ci". Fix the confusion by picking the term that fits the context.
-BEGIN VERIFY SCRIPT-
ren() { sed -i "s:$1:$2:g" $( git grep -l "$1" ) ; }
ren DOCKER_PACKAGES CI_BASE_PACKAGES
# This better reflects that they are the common base for all CI
# containers.
ren DOCKER_ID CI_CONTAINER_ID
# This is according to the documentation of "--detach , -d: Run
# container in background and print container ID".
ren DOCKER_NAME_TAG CI_IMAGE_NAME_TAG
# This avoids confusing with CONTAINER_NAME and clarifies that it is an
# image.
ren DOCKER_ADMIN CI_CONTAINER_CAP
# This clarifies that it is a capability added to the container.
ren DOCKER_CI_CMD_PREFIX CI_EXEC_CMD_PREFIX
# This brings it in line with the CI_EXEC naming.
-END VERIFY SCRIPT-
774323e378 ci: Force `--enable-external-signer` to prevent future regressions (Hennadii Stepanov)
69978858a4 build: Fix Boost.Process check for Boost 1.73 and older (Hennadii Stepanov)
2199ef79cb build: Fix a non-portable use of `test` (Hennadii Stepanov)
d436c488d4 build, refactor: Replace tabs with spaces (Hennadii Stepanov)
Pull request description:
On master (5f44c5c428) Boost.Process check false fails without the `-lpthread` flag.
```
$ grep -C 2 pthread_detach config.log
/usr/bin/ld: /tmp/cczCQfQv.o: in function `boost::asio::detail::posix_global_impl<boost::asio::system_context>::~posix_global_impl()':
conftest.cpp:(.text._ZN5boost4asio6detail17posix_global_implINS0_14system_contextEED2Ev[_ZN5boost4asio6detail17posix_global_implINS0_14system_contextEED5Ev]+0xa3): undefined reference to `pthread_join'
/usr/bin/ld: conftest.cpp:(.text._ZN5boost4asio6detail17posix_global_implINS0_14system_contextEED2Ev[_ZN5boost4asio6detail17posix_global_implINS0_14system_contextEED5Ev]+0xc4): undefined reference to `pthread_detach'
collect2: error: ld returned 1 exit status
configure:26674: $? = 1
```
Not required for Boost 1.74+.
ACKs for top commit:
laanwj:
Code review ACK 774323e378, is a bugfix/workaround, seems fine to merge last minute for 23.0.
Tree-SHA512: 2a9d4b67fd8910e107af972d8c223286b7c933bc310616f86c8b6d8c903438916980fc76bd7e37f2698f6ce5361dc706cbf2933d1ac2c081bcabe1b83ca7d6b6
b367745cfe ci: Make Cirrus CI Windows build with --enable-werror (Hennadii Stepanov)
c713bb2b24 Fix Windows build with --enable-werror on Ubuntu Focal (Hennadii Stepanov)
Pull request description:
This PR makes possible to cross-compile Windows build with `--enable-werror --enable-suppress-external-warnings`.
Some problems are fixed, others are silenced.
Also `--enable-werror` is enabled for Cirrus CI Windows build (the last one on Cirrus CI without `--enable-werror`).
ACKs for top commit:
practicalswift:
cr ACK b367745cfe: patch looks correct
laanwj:
Code review ACK b367745cfe
vasild:
ACK b367745cfe
jarolrod:
ACK b367745cfe
Tree-SHA512: 64f5c99b7dad4c0efce80cd45d7074f275bd8411235dc9e0841287bdab64b812c6f8f9d632c35531d0b8210148531f53aaaac77be7699b29d2d6aaae304dbee0
An earlier version of #16546 used both --with-boost-process and --enable-external-signer, which was simplified to only use the latter. However I forgot to update CI, so the external signer tests were not run.
2ecaf21433 gitian: remove execstack workaround for ricv64 & powerpc64le (fanquake)
5baff2b318 build: use focal in gitian descriptors (fanquake)
Pull request description:
This PR changes the gitian descriptors to use Ubuntu Focal (20.04), over Bionic (18.04), moving from GCC 7.5 to GCC 8.4 for native Linux builds, mingw-w64 GCC 7.3 to mingw-w64 GCC 9.3 for Windows builds, while continuing to use GCC 8.4 for all cross builds and Clang 8.0.0 for macOS builds.
It also drops the `-Wl,-z,noexecstack` workaround we've been using for the riscv64 and powerpc64le hosts, as it's no-longer needed. One new package is installed in the osx build, `libtinfo5`, as libtinfo5.so is required by our downloaded Clang 8.
A bump to Focal will at least be required if we want to update to a newer Qt (5.15, #19716) for 22.0, as we need a newer version of [`g++-mingw-w64`](https://packages.ubuntu.com/focal/g++-mingw-w64-x86-64) and the [`mingw-w64`](https://mingw-w64.org/doku.php) headers. This can still be done while continuing to use GCC 8.4 for Linux builds (see below), however the newer `g++-mingw-w64` will be based off of GCC 9.3.
**Some considerations**
GCC 9 is affected by #20005 "memcmp with constants that contain zero bytes are broken in GCC", and the newer `g++-mingw-w64` will be based off of GCC 9.3.
The `--no-*` variants of the Windows linker flags (i.e `--no-dynamicbase`) we use to [test our `security-check.py` script](16b784d953/contrib/devtools/test-security-check.py (L53)) are not patched into the mingw binutils in Focal (they have been re-added in Groovy (20.10)). This isn't currently an issue, however, we might add a call to `test-security-check` for Guix (#20980), and if we wanted to do the same for gitian, it would not work. Note how it's quite "easy" for us to apply the `--no-*` variant patch to our Guix build; it would be quite a bit harder to do in Gitian.
Gitian Builds @ 2ecaf21433
#### Linux
```bash
8882ea78486fbae4fac574b9089eb1107c6372d0dd7dfcda4f0f930576f9d6c1 bitcoin-2ecaf214331b-aarch64-linux-gnu-debug.tar.gz
50a9e30943b4eee5163edff3331241e745ff32a2c4463c21a6fdc5986e2d0383 bitcoin-2ecaf214331b-aarch64-linux-gnu.tar.gz
ec4e55a447fddf033fee33cd5f22bfeda3c3612f059194bcf6238859f7989d7a bitcoin-2ecaf214331b-arm-linux-gnueabihf-debug.tar.gz
444fe1b3b933c00bcbd4a9d86888cff3b61c1215b1debccd2843e842d1224777 bitcoin-2ecaf214331b-arm-linux-gnueabihf.tar.gz
88e486ff465980dc1a4aab9687d142ec6f727ed2c52cf539f69db2877dee83b2 bitcoin-2ecaf214331b-powerpc64-linux-gnu-debug.tar.gz
66144ac264c65cada9d86446e6026c85b04fb88198b8f41b42840f6031db3e6c bitcoin-2ecaf214331b-powerpc64-linux-gnu.tar.gz
34bcc13d78d929d575e34e77a6672f23ca7ea23230b28ec2eed563889352ba86 bitcoin-2ecaf214331b-powerpc64le-linux-gnu-debug.tar.gz
b4c5f959664f3063df4330edfe343c17120eb6b556ee1c15c4aeb2c1c54ffd49 bitcoin-2ecaf214331b-powerpc64le-linux-gnu.tar.gz
918fa72ab6f6ebce4e9663c93f72fe26651c260477cbb54749f7eb61438b5cc1 bitcoin-2ecaf214331b-riscv64-linux-gnu-debug.tar.gz
f704f9f8c053ffe37d854e2e81e0f4c0614c435dad7f5d82518c681b73a76ae6 bitcoin-2ecaf214331b-riscv64-linux-gnu.tar.gz
b59e3a62f1df9d79f30e916b3c9655f654036fe3a420040c53acc8dd9f4162c5 bitcoin-2ecaf214331b-x86_64-linux-gnu-debug.tar.gz
a4dc9ca877cc97544e65db11be38406d16f15d74fcdcd2318bb92474729bc60d bitcoin-2ecaf214331b-x86_64-linux-gnu.tar.gz
b40ba2d5da498330ade92a4ccebcceb1452b94c8ffeacb336f87e93b5c88d8af src/bitcoin-2ecaf214331b.tar.gz
af6ebc91147778e4e6705eade62608dde4d6e60522d79087fa9129bdb7c01199 bitcoin-core-linux-22-res.yml
```
#### Windows
```bash
121a3970a6911cb8c453b2ce37d03f6cbb43333e29db8fa516c68563fb367f43 bitcoin-2ecaf214331b-win-unsigned.tar.gz
6294e9efebe935092f9ba119dc60ad4094f18b51c4181324e54d3057524d6101 bitcoin-2ecaf214331b-win64-debug.zip
5b5a236b63e67f5f6c07ad9aa716aa7b72fb63722c96798b332c6d164738f9cf bitcoin-2ecaf214331b-win64-setup-unsigned.exe
c1fa5894c5e02a201637567c80b9bde9024f44673dcd06fd4d489c1709179279 bitcoin-2ecaf214331b-win64.zip
b40ba2d5da498330ade92a4ccebcceb1452b94c8ffeacb336f87e93b5c88d8af src/bitcoin-2ecaf214331b.tar.gz
665fd7eb61aed368150db58a254f15fb5efb51a4efa5abcc52571cb7a1a5de22 bitcoin-core-win-22-res.yml
```
#### macOS
```bash
6a1deae7662aa782baa82a42590f862c6bcdc4f4e38daa9b8c2a9eed1fbb5397 bitcoin-2ecaf214331b-osx-unsigned.dmg
1ee843266e84928a4323fa255c833528c2617a2c9fd2f98fb26ba19bbfc1227b bitcoin-2ecaf214331b-osx-unsigned.tar.gz
097b64dadc167d8e5b733421bf1541a40760ad952990f7cf3f35adc6ae2616d0 bitcoin-2ecaf214331b-osx64.tar.gz
b40ba2d5da498330ade92a4ccebcceb1452b94c8ffeacb336f87e93b5c88d8af src/bitcoin-2ecaf214331b.tar.gz
6e378fb543928e40c7119b96be6ff773d38506a9a888f8b02c7f1b8a0801a80e bitcoin-core-osx-22-res.yml
```
ACKs for top commit:
laanwj:
Build script changes review ACK 2ecaf21433
Tree-SHA512: 975d5830b787d2e08988f43cbc6e839294171c1d94c8219636308b05f9b77041421612ae67be24a631674670cfc9c2d96d8177f2b3158a78fc3deea19631febf
This fixes issue #19388. The changes are as follows:
- Add a new flag to configure, --enable-fuzz-binary, which allows building test/fuzz/fuzz regardless of whether we are building to do actual fuzzing
- Set -DPROVIDE_MAIN_FUNCTION whenever --enable-fuzz is no
- Add the following libraries to FUZZ_SUITE_LD_COMMON:
- LIBBITCOIN_WALLET
- SQLLITE_LIBS
- BDB_LIBS
- if necessary, some or all of:
- NATPMP_LIBS
- MINIUPNPC_LIBS
- LIBBITCOIN_ZMQ / ZMQ_LIBS
Compilers used change as follows:
Linux native GCC 7.5 -> GCC 8.4
Linux cross GCC 8.4 -> GCC 8.4
Windows mingw-w64 7.3 -> mingw-w64 9.3
macOS Clang 8.0.0 -> Clang 8.0.0
The macOS and Win cross builds in the CI are updated to use Focal, and
per the op, running the security tests is disabled in the Windows
build.
