7746606cfa test: use MiniWallet for mining_basic.py (Sebastian Falbesoner)
Pull request description:
This PR enables one more of the non-wallet functional tests (mining_basic.py) to be run even with the Bitcoin Core wallet disabled by using the MiniWallet instead, as proposed in #20078.
ACKs for top commit:
brunoerg:
crACK 7746606cfa
Tree-SHA512: 4455b8b764413b0fc3ef388e3c5d5758f9e6b6d3193ac660269a9ba1c988022e6b7bc148549c2167942ea472c5aaddd2b6b3b9d99790d0654b089af975b86e11
96eb0093d0 test: wait rather than assert presence of file in startupnotify test (fanquake)
Pull request description:
Should fix#23967.
ACKs for top commit:
brunoerg:
crACK 96eb0093d0
kristapsk:
utACK 96eb0093d0
Tree-SHA512: 9107970e45c027cfc6c6cbfcfd5a7d9f5956259bbbb11f5b180c3947126e42e62c0f8ffd69cf7b39b51c9c5b4fedbb753839d59aebe876be68c1484bb6065819
e09773d20a build: use a static .tiff for macOS .dmg over generating (fanquake)
Pull request description:
For demonstration, after [discussion in #23778](https://github.com/bitcoin/bitcoin/pull/23778#issuecomment-1003005503), and the question as to why we can't just have a `background.tiff` that we copy into the macOS DMG, and do away with the somewhat convoluted image generation steps.
From my understanding, the only reason we have this image generation as part of our build system is so that forks of Core can adapt the imagery for their own branding via `PACKAGE_NAME`. It don't think it provides much value to us, and could just have a static .tiff that we copy into the dmg (replacing the .svg that currently lives in macdeploy/).
Doing this would eliminate the following build dependencies:
For native macOS:
* `sed` (usage in Makefile.am)
* `librsvg` (rsvg-convert)
* `tiffutil`
Linux macOS cross-compile:
* `sed` (usage in Makefille.am)
* `librsvg`
* `tiffcp`
* `convert` (imagemagick)
* `font-tuffy`
Guix Build:
```bash
bash-5.1# find guix-build-$(git rev-parse --short=12 HEAD)/output/ -type f -print0 | env LC_ALL=C sort -z | xargs -r0 sha256sum
c98d67796863f4b1bab0ad600d46bd74e744d94072cbd4bc856a6aeaba3bb329 guix-build-e09773d20a92/output/dist-archive/bitcoin-e09773d20a92.tar.gz
3336f90bab312798cb7665e2b4ae24d1a270fb240647d5fed8dbfcd83e3ed37e guix-build-e09773d20a92/output/x86_64-apple-darwin/SHA256SUMS.part
8fd680c7ee158c64bad212385df7b0b302c6c2143d4e672b4b0eb5da41f9256d guix-build-e09773d20a92/output/x86_64-apple-darwin/bitcoin-e09773d20a92-osx-unsigned.dmg
34f54177c2f0700e8cfaf5d85d91e404807cd9d411e22006cdff82653e5f4af2 guix-build-e09773d20a92/output/x86_64-apple-darwin/bitcoin-e09773d20a92-osx-unsigned.tar.gz
da6b8f54ef755d40330c8eac4f5bd0329637e827be9ee61318600d5d0bdcc3dc guix-build-e09773d20a92/output/x86_64-apple-darwin/bitcoin-e09773d20a92-osx64.tar.gz
```
![dmg](https://user-images.githubusercontent.com/863730/147847717-8121c2d2-cdd4-4781-8397-3bf2893d52cc.png)
ACKs for top commit:
hebasto:
ACK e09773d20a
jarolrod:
ACK e09773d20a
Zero-1729:
ACK e09773d20a
Tree-SHA512: 0ad06699a5451daa8cfaaa46759eb7bd85254a72e23f857f70d433a2ffb1a4bf6dd464d9c4ac9f8c20aab045f4e2b61c6dcdcbcceef96ce515b1a0c501665b1f
faa51a6aa9 doc: Mark proprietary array optional (MarcoFalke)
Pull request description:
The global one is returned all the time, but the input/output array is returned optionally
ACKs for top commit:
fanquake:
ACK faa51a6aa9
Tree-SHA512: db987c13d59e0ccc633032707438d506fe4f8fbf7569a03b99d899cb1309de94f99c343840107fc51a9f904bcf55e00049808b6cdf732fc16c6e9e818b480936
fa77dc9ce2 test: Bundle all integer sanitizer suppressions of dependencies (MarcoFalke)
Pull request description:
And remove three that are no longer needed.
Can be reviewed with `--color-moved=dimmed-zebra`.
Having separate sections for out-of-tree dependencies and in-tree suppressions makes it easier to categorize while reading.
ACKs for top commit:
fanquake:
ACK fa77dc9ce2
Tree-SHA512: c18ba99c54595c1a3dd066c5317bf5ed391ed7dace7435f686b4d0047d8d622f71deb646dcd3db1776c7564a721b01e27b19474b307d52ee8870a4b4d382b24e
62c173ae4c doc: remove CC_FOR_BUILD from OpenBSD build doc (fanquake)
Pull request description:
This is no-longer necessary after upstream libsecp256k1 changes that have been pulled into our repo.
ACKs for top commit:
theStack:
ACK 62c173ae4c
Tree-SHA512: 7c328185afec366ff49096512b2fcc3c2f2a2381875f65f5444ffacf118f9a51e4e2237daaae6b32f742a7c4c54c1fbba7cee4e1807d7c4816123f6b0e7c33c8
ea4c9fd4ab test: Cover eviction by timeout in addrman_evictionworks (Martin Zumsande)
4f1bb467b5 test: Add test for multiplicity in addrman new tables (Martin Zumsande)
e880bb7836 test: Add test for updating addrman entries (Martin Zumsande)
f02eee8c87 test: introduce utility function to retrieve an addrman (Martin Zumsande)
f0e5efb824 test: Remove unused AddrManTest class (Martin Zumsande)
b696d7870b test: Remove tests for internal helper functions (Martin Zumsande)
0538520091 test: use AddrMan instead of AddrManTest where possible (Martin Zumsande)
1c65d427bb test: Inline SimConnFail function (Martin Zumsande)
5b7aac34f2 test: delete unused GetBucketAndEntry function (Amiti Uttarwar)
2ba1e74e59 test: Update addrman_serialization unit test to use AddrMan's interface (Amiti Uttarwar)
dad5f76021 addrman: Introduce a test-only function to lookup addresses (Amiti Uttarwar)
Pull request description:
This PR (joint work with Amiti Uttarwar) changes the addrman unit tests such that they only use the public `AddrMan` interface:
This has the advantage that the tests are less implementation-dependent, i.e. it would be possible to rewrite the internal addrman implementation (as drafted [here](https://github.com/sipa/bitcoin/tree/202106_multiindex_addrman) for using a multiindex) without having to adjust the tests.
This includes the following steps:
* Adding a test-only function `FindAddressEntry()` to the public addrman interface which returns info about an address in addrman (e.g. bucket, position, whethe the address is in new or tried). Obviously we want to do this sparingly, but I think a single test-only function is ok (which could also be useful elsewhere, e.g. in fuzz tests).
* Removal of the `AddrManTest` subclass which would reach into AddrMan's internals, using `AddrMan` instead
* Removal of tests for internal helper functions that are not publicly exposed (these are still tested indirectly via the public functions calling them).
* Additional tests for previously untested features such as multiplicity in the new tables, that can be tested with the help of `FindAddressEntry()`.
All in all, this PR increases the unit test coverage of AddrMan by a bit.
ACKs for top commit:
jnewbery:
ACK ea4c9fd4ab
josibake:
reACK ea4c9fd4ab
Tree-SHA512: c2d4ec8bdc62ffd6055ddcd37dea85ec08c76889e9e417e8d7c62a96cf68a8bcbe8c67bec3344d91fa7d3c499f6d9f810962da1dddd38e70966186b10b8ab447
fa5bb37611 rpc: Use EnsureAnyArgsman in rpc/blockchain (MarcoFalke)
fa98b6f644 rpc: Add EnsureArgsman helper (MarcoFalke)
Pull request description:
This refactor doesn't change anything for the rpc layer, but it helps a bit with removing gArgs (See #21005)
ACKs for top commit:
shaavan:
Code Review ACK fa5bb37611
Tree-SHA512: 18f9cc90830a168acb94452b541b6e97ba9a50a0f4834698a16994c3884c833dc606e36a5538a16352e5e5cc43d3ac77cb498f877f8f5bc5dd52fa84f8bf2056
b9898aeeaa scripts: make security checks architecture independent (fanquake)
Pull request description:
This paves the way for using and checking for architecture dependent flags like `-fcf-protection` on x86_64 Linux and `-mbranch-protection` on 64 bit ARM.
While we need a workaround for RISCV arch detection, I sent a change upstream (https://github.com/lief-project/LIEF/pull/640), which has been merged. So we can drop this workaround along with our other RISCV workarounds (i.e https://github.com/lief-project/LIEF/pull/562) with the next LIEF release.
Required for #19075, #21851, #21888 etc.
Guix build:
```bash
bash-5.1# find guix-build-$(git rev-parse --short=12 HEAD)/output/ -type f -print0 | env LC_ALL=C sort -z | xargs -r0 sha256sum
c57bcad9d763aae223a256283fef6243d79e0df46c5b5706dc9034a87df56694 guix-build-b9898aeeaa6a/output/aarch64-linux-gnu/SHA256SUMS.part
f16fb8f0a2d4dfd576fea440c487722d076f3db9d10ec0480b2f94df0c92a6a3 guix-build-b9898aeeaa6a/output/aarch64-linux-gnu/bitcoin-b9898aeeaa6a-aarch64-linux-gnu-debug.tar.gz
0e6e660eca7484ddb160b3d62d8867cf171044e81e719de899cd9b8b898cc614 guix-build-b9898aeeaa6a/output/aarch64-linux-gnu/bitcoin-b9898aeeaa6a-aarch64-linux-gnu.tar.gz
29f14e305a280dc1d33a1f2d660db952caf6f3a9aeff9ab9560f122821269ab2 guix-build-b9898aeeaa6a/output/arm-linux-gnueabihf/SHA256SUMS.part
26477f58601363dfe8eb2639472f71943bc341d415b6190316af232f363f5485 guix-build-b9898aeeaa6a/output/arm-linux-gnueabihf/bitcoin-b9898aeeaa6a-arm-linux-gnueabihf-debug.tar.gz
372be53fd6d7fedad1bddc45cd9d1ce34cff376eaae4f613e2aa2465728fba82 guix-build-b9898aeeaa6a/output/arm-linux-gnueabihf/bitcoin-b9898aeeaa6a-arm-linux-gnueabihf.tar.gz
39778c9d2949deaba404c90b930e5a0b72663bb05e9d82e93439be131fd622e3 guix-build-b9898aeeaa6a/output/dist-archive/bitcoin-b9898aeeaa6a.tar.gz
599eee817b364b0348034a3e8c97b4bb1a35a78e3ba3472f7589f7a241947b51 guix-build-b9898aeeaa6a/output/powerpc64-linux-gnu/SHA256SUMS.part
ade0c5ac07d467aa73f85d2a08c3fc3b311816869a2b6903bba4b4e6c88ad9d2 guix-build-b9898aeeaa6a/output/powerpc64-linux-gnu/bitcoin-b9898aeeaa6a-powerpc64-linux-gnu-debug.tar.gz
c63db0e2570756df0b459e6114f01f0b47972ba8d81fcd9568edee95dfade23b guix-build-b9898aeeaa6a/output/powerpc64-linux-gnu/bitcoin-b9898aeeaa6a-powerpc64-linux-gnu.tar.gz
dc4e6ba6958e534161a54669ff5d75bc312cfeb92567cc2092235eed0e2f6aa7 guix-build-b9898aeeaa6a/output/powerpc64le-linux-gnu/SHA256SUMS.part
3ce4c7e50915f72f24fcd24e1e1bc8460cdf2c065e390cf5f626c4cffd50961c guix-build-b9898aeeaa6a/output/powerpc64le-linux-gnu/bitcoin-b9898aeeaa6a-powerpc64le-linux-gnu-debug.tar.gz
c8f4a8f10f16fab07547553f1f2580c4aa98ac63246fb30da0560a6367990dd1 guix-build-b9898aeeaa6a/output/powerpc64le-linux-gnu/bitcoin-b9898aeeaa6a-powerpc64le-linux-gnu.tar.gz
8206937fefc76cc277cc7aa8762d7554575942a9e1704106d5ab9b6fe01d5408 guix-build-b9898aeeaa6a/output/riscv64-linux-gnu/SHA256SUMS.part
9530ee044927df02d96c3a9e5974d68b70a7105cb943b94e846c496c2d0579b9 guix-build-b9898aeeaa6a/output/riscv64-linux-gnu/bitcoin-b9898aeeaa6a-riscv64-linux-gnu-debug.tar.gz
fc4885db902c3205d3c1bc45c7e03375e621633efb419df37f145d11329bd6ed guix-build-b9898aeeaa6a/output/riscv64-linux-gnu/bitcoin-b9898aeeaa6a-riscv64-linux-gnu.tar.gz
caedbc37d5aa5fbb0e370019ce5f1d5f6745b32153f562b0aee80aceec57deab guix-build-b9898aeeaa6a/output/x86_64-apple-darwin/SHA256SUMS.part
1b363dfde1d83530ec4deb0f24547c07446f5db99f327fe382a6e91b4b6cc454 guix-build-b9898aeeaa6a/output/x86_64-apple-darwin/bitcoin-b9898aeeaa6a-osx-unsigned.dmg
bee82fe6e50a249eab21b6c97ad7436447489d0eabe3e5f7c992ba3b22dfc5ea guix-build-b9898aeeaa6a/output/x86_64-apple-darwin/bitcoin-b9898aeeaa6a-osx-unsigned.tar.gz
a935280e1229c69bdd29f32d4c894f1384e765872c68ea0dcdacdf897d4bc013 guix-build-b9898aeeaa6a/output/x86_64-apple-darwin/bitcoin-b9898aeeaa6a-osx64.tar.gz
370a87e34e694fe44ba0cd809a1ba044bcc0e7e100b01d74a883069b3d754d1c guix-build-b9898aeeaa6a/output/x86_64-linux-gnu/SHA256SUMS.part
46f8c3aa2c3a65f3fc73ddda344724e800bb463d80b062dc749ab76f4c21bc8c guix-build-b9898aeeaa6a/output/x86_64-linux-gnu/bitcoin-b9898aeeaa6a-x86_64-linux-gnu-debug.tar.gz
9704b95152ebe582f8aa70bbab8f34ea5e32d80dfda948c019cb9f7d0982f36c guix-build-b9898aeeaa6a/output/x86_64-linux-gnu/bitcoin-b9898aeeaa6a-x86_64-linux-gnu.tar.gz
8385a966601ab4b9dc11d4467435c26af93dce97b66f3d33d7a8f7a885ac326d guix-build-b9898aeeaa6a/output/x86_64-w64-mingw32/SHA256SUMS.part
f46812804e79166e5440b678166ce2cc38b5628d1a9e312b3af138720cacc478 guix-build-b9898aeeaa6a/output/x86_64-w64-mingw32/bitcoin-b9898aeeaa6a-win-unsigned.tar.gz
1d7077fdc59ce6af2ea5bffaa5a2ab579f8e8382467a7140623a6a2c4a588a0c guix-build-b9898aeeaa6a/output/x86_64-w64-mingw32/bitcoin-b9898aeeaa6a-win64-debug.zip
033fa4263ec91ca1e53ff652f12104c3c2aa7da9240a9b48bfa8f2341c79a225 guix-build-b9898aeeaa6a/output/x86_64-w64-mingw32/bitcoin-b9898aeeaa6a-win64-setup-unsigned.exe
b7fdc84dee75951c131747c00e1e3c2da87e6f98e9435ffe7fa350ecda6771e8 guix-build-b9898aeeaa6a/output/x86_64-w64-mingw32/bitcoin-b9898aeeaa6a-win64.zip
```
ACKs for top commit:
laanwj:
Code review ACK b9898aeeaa
hebasto:
ACK b9898aeeaa
Tree-SHA512: d7e7c3eb33f54d44a2252f36871fdb77c182da18ee02078e8b5b4f91d02ec91f9e5c829160839b010b40670202ff05d2c702b7a3873b450878f21ade4dc0ab58
059f88b6a9 Add RPC help for getblock verbosity level 3 (Kiminuo)
1bdd5f6322 Address review comments from #22918 (Kiminuo)
Pull request description:
This is a follow-up PR to #22918 which addresses review comments (first commit). The second commit adds missing RPC help for verbosity level 3.
ACKs for top commit:
pg156:
ACK 059f88b6a9
laanwj:
re-ACK 059f88b6a9
Tree-SHA512: f27d53ac34b93a304ef5668701ed2b5c986a926bc8ad0df4de89695fc9e1df26acb008611451319ea897658acd9c56c6a0555d60359960c9cd28238ebefa2d50
The sys/sdt.h header is required to build Bitcoin Core with Userspace
Statically Defined Tracing support. Systemtap version 4.5 (May 2021)
is used as the most recent version 4.6 (Nov 2021) fails to build.
See e.g. https://sourceware.org/git/?p=systemtap.git;a=commit;h=1d3653936fc1fd13135a723a27e6c7e959793ad0
As Systemtap itself is not needed, the build steps (configure and
make) are skipped. We require fewer build dependecies and don't
waste time building depends we don't end up using. However, the
configure step would normally processes sys/sdt-config.h.in. The
resulting sdt-config.h defines _SDT_ASM_SECTION_AUTOGROUP_SUPPORT
(either 0 or 1 to indicate whether the assembler supports "?" in
.pushsection directives). For now, we assume all currently used
assemblers supports this feature and remove the check from the
sys/sdt.h header file in a patch.
Co-authored-by: Michael Ford <fanquake@gmail.com>
1eb5389ee5 Update test/sanitizer_suppressions/lsan (Hennadii Stepanov)
Pull request description:
With Qt 5.15.2 in depends it seems we can drop some Leak Sanitizer suppressions now.
ACKs for top commit:
fanquake:
ACK 1eb5389ee5 given the CI is passing. Did not test anything locally.
Tree-SHA512: 657aa390ffa68951a95bfaac6502da57daf2533ffb0ed49b483f056f6242952316515f250ad36890c9f02ca79eccd60f43c16922d5a50acb1508936e780496cc
1bf3809dd1 build: use host_os instead of TARGET_OS in configure output (fanquake)
Pull request description:
`TARGET_OS` was convenient, as a readable host name for most of our
targeted platforms, however unless we add more code to configure to
detect more hosts, it's easier just use `host_os` (it's also more
informative).
i.e FreeBSD master
```bash
target os =
build os = freebsd13.0
```
this PR:
```bash
target os = freebsd13.0
build os = freebsd13.0
```
ACKs for top commit:
hebasto:
ACK 1bf3809dd1
Tree-SHA512: 606d92f60ce3f2f6ab1f54e29b5c179048c62ba51336b272c081b1e009128dd83705b181cfe30991c7a51d9c63e8ba2076bfed9e6112e7d1a74a7f947c5754f5
This commit does following changes to time variables in net_processing.h:
- Used {} initialization.
- Uses universal initializer auto.
- Uses chrono::literals
The reason for these changes is to make code simpler, and easier to
understand and rationalize.
fa7efc915b Fixup style of moved code (MarcoFalke)
fade2a44f4 Move BlockManager to node/blockstorage (MarcoFalke)
Pull request description:
`BlockManager` is responsible for reading and writing block(headers). So move it to the existing `blockstorage` module in `node`. Also, move validation code unrelated to block-storage out from `BlockManager`.
ACKs for top commit:
ryanofsky:
Code review obvious ACK fa7efc915b
Tree-SHA512: 0197943d818e5f59e743b07fbb92e7661bff90081127a41e35e5692ce49d6f6a7872448670b0da282f7714580a45c8d93e571a67177c8b5f785ce9edefe834c5
29e1794ba5 build, qt: No need to set inapplicable QPA backend for Android (Hennadii Stepanov)
Pull request description:
The current workflow looks weird. At first, the inapplicable `xcb` QPA backend is set in Qt `configure` options. Then the correct `android` QPA backend is forced via the `QT_QPA_PLATFORM` environment variable.
Using the default QPA backend, which is `android` for Android devices, is just fine.
ACKs for top commit:
icota:
re-tACK 29e1794ba5
Tree-SHA512: 08ed7d05209c1bedc1a71de5ea3be5d86b40319a164dceb9191f7a4dfe78f2f951778b90421335e73e71a798a57bdf046aa96876762d338b600037bd7ee27b52
d04f68d99c ci: Update Cirrus CI task name (Hennadii Stepanov)
Pull request description:
Missed in bitcoin/bitcoin#22815.
ACKs for top commit:
fanquake:
ACK d04f68d99c
Tree-SHA512: 8c5d4b4ab6967e8ab2f3630216d33297e533eda0bd9e83dd3c8f5b9952bc0865b04af5f4398a3357135d81be99d483864ec710eeb89a149a61e258e92d680a76
b4adc5ad67 [bugfix] update lockpoints correctly during reorg (glozow)
b6002b07a3 MOVEONLY: update_lock_points to txmempool.h (glozow)
Pull request description:
I introduced a bug in #22677 (sorry! 😅)
Mempool entries cache `LockPoints`, containing the first height/blockhash/`CBlockIndex*` at which the transaction becomes valid. During a reorg, we re-check timelocks on all mempool entries using `CheckSequenceLocks(useExistingLockPoints=false)` and remove any now-invalid entries. `CheckSequenceLocks()` also mutates the `LockPoints` passed in, and we update valid entries' `LockPoints` using `update_lock_points`. Thus, `update_lock_points(lp)` needs to be called right after `CheckSequenceLocks(lp)`, otherwise we lose the data in `lp`. I incorrectly assumed they could be called in separate loops.
The incorrect behavior introduced is: if we have a reorg in which a timelocked mempool transaction is still valid but becomes valid at a different block, the cached `LockPoints` will be incorrect.
This PR fixes the bug, adds a test, and adds an assertion at the end of `removeForReorg()` to check that all mempool entries' lockpoints are valid. You can reproduce the bug by running the test added in the [test] commit on the code before the [bugfix] commit.
ACKs for top commit:
jnewbery:
ACK b4adc5ad67
vasild:
ACK b4adc5ad67
mzumsande:
Code Review ACK b4adc5ad67
hebasto:
ACK b4adc5ad67
MarcoFalke:
re-ACK b4adc5ad67🏁
Tree-SHA512: 16b59f6ff8140d0229079ca1c6b04f2f4a00a2e49931275150e4f3fe5ac4ec109698b083fa6b223ba9511f328271cc1ab081263669d5da020af7fee83c13e401
8904f17ea7 test: enable txindex in feature_init (James O'Beirne)
93db6d8422 test: feature_init: retain debug.log and improve detection (James O'Beirne)
24fcf6e435 test: feature_init: tweak all .ldb files of a certain type (James O'Beirne)
a8ffbc01db test: add TestNode.wait_for_debug_log (James O'Beirne)
a2fb62b632 test: introduce TestNode.debug_log_bytes (James O'Beirne)
Pull request description:
Hopefully fixes#23646.
This makes a few changes to feature_init (along the lines of the discussion here: https://github.com/bitcoin/bitcoin/pull/23289#discussion_r766615073). The changes are detailed in the specific commits, but a summary might be:
- more robust log-line detection (at the expense of maybe being slower)
- retain all debug.log content
- perturb .ldb files in a more complete way
Top commit has no ACKs.
Tree-SHA512: 9c8900998fdb96d3cc92bd30c4eeda2a47e9787e6432546d458c17f24eb9e2b6b3eb573db225172888ca71d7a62260f497f83827597b982b9e35c5452cb6e514
126853214a test: add functional test for -startupnotify (Bruno Garcia)
Pull request description:
This PR adds a functional test for -startupnotify. It basically starts the node passing a command on -startupnotify to create a file on tmp and then, we check if the file has been successfully created.
ACKs for top commit:
theStack:
Tested ACK 126853214a
kristapsk:
re-ACK 126853214a
Tree-SHA512: 5bf3e46124ee5c9d609c9993e6465d5a71a8d2275dcf07c8ce0549f013f7f8863d483b46b7164152f566468a689371ccb87f01cf118c3c9cac5b2be673b61a5c
a1b532d1a5 doc: Update license year range to 2022 (Kuro)
Pull request description:
See #20805, #17801, #15061
The same procedure as every year. Happy new year to all of you :)
Top commit has no ACKs.
Tree-SHA512: 295e2cbd0cb1f4d52d2748d415759fe63ab1c946ebc2daff21573c9da392e2a72e3ce97a61194674196aa0339d115c4d9672e0191892c8d0392b1866ad5cee8b
TARGET_OS was conveninent, as a readable host name for most of our
targetted platforms, however unless we add more code to configure to
detect more hosts, it's easier just use host_os (it's also more
informative).
i.e FreeBSD master
```bash
target os =
build os = freebsd13.0
```
this PR:
```bash
target os = freebsd13.0
build os = freebsd13.0
```