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glozow 0391d7e4c2
Merge bitcoin/bitcoin#31848: test, tracing: don't use problematic bpf_usdt_readarg_p() 
a0b66b4bff Revert "test: Disable known broken USDT test for now" (0xb10c)
ec47ba349d contrib: don't use bpf_usdt_readarg_p (0xb10c)
35ae6ff60f test: don't use bpf_usdt_readarg_p (0xb10c)

Pull request description:

  Instead of using the undocumented bcc helper `bpf_usdt_readarg_p()`, use [`bpf_usdt_readarg()`][1] and [`bpf_probe_read_user()`][2]/[`bpf_probe_read_user_str()`][3] as documented in the [bcc USDT reference guide][1].

  Note that the `bpf_probe_read_user()` documentation says the following:
  > For safety, all user address space memory reads must pass through bpf_probe_read_user().

  It's [assumed](https://github.com/bitcoin/bitcoin/issues/27380#issuecomment-2286505348) that using `bpf_usdt_readarg_p()` caused a lifetime issue. With `bpf_usdt_readarg()` and `bpf_probe_read_user()`, this doesn't [seem](https://github.com/bitcoin/bitcoin/issues/27380#issuecomment-2528671656) to be a problem anymore.

  This allows to revert faed533743 and closes #27380.

    [1]: https://github.com/iovisor/bcc/blob/master/docs/reference_guide.md#6-usdt-probes
    [2]: https://github.com/iovisor/bcc/blob/master/docs/reference_guide.md#10-bpf_probe_read_user
    [3]: https://github.com/iovisor/bcc/blob/master/docs/reference_guide.md#11-bpf_probe_read_user_str

ACKs for top commit:
  i-am-yuvi:
    Tested ACK a0b66b4bff
  willcl-ark:
    tACK a0b66b4bff

Tree-SHA512: 002a692ad81ef284d4a610bbc6da477d623bf4dae5134c3692431c56b71692fa597e280fddd411eadd08eae77f01f47e2dcd0f37c0081326abe11a75bb10d6a6
2025-03-05 10:21:10 -05:00
..
asmap Compare ASMaps with respect to specific addresses 2024-06-27 16:35:15 +02:00
completions testnet: Introduce Testnet4 2024-08-06 01:38:10 +02:00
debian doc: upgrade license to 2025. 2025-01-06 12:23:11 +00:00
devtools Merge bitcoin/bitcoin#31742: contrib: fix BUILDDIR in gen-bitcoin-conf script and gen-manpages.py 2025-02-20 11:54:10 -08:00
guix Merge bitcoin/bitcoin#29881: guix: use GCC 13 to build releases 2025-02-18 21:12:42 -08:00
init security: restrict abis in bitcoind.service 2023-08-24 16:54:47 -04:00
linearize contrib: support reading XORed blocks in linearize-data.py script 2024-08-07 23:53:39 +02:00
macdeploy Merge bitcoin/bitcoin#30287: macOS: rewrite some docs & swap mmacosx-version-min for mmacos-version-min 2024-06-18 10:55:46 +01:00
message-capture test: use built-in collection types for type hints (Python 3.9 / PEP 585) 2023-10-25 01:10:21 +02:00
qos scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
seeds contrib: Update asmap link in seeds readme 2024-09-26 15:54:01 +02:00
shell guix: Add source-able bash prelude and utils 2021-04-05 11:00:21 -04:00
signet doc: update signet documentation related to build directories 2024-09-28 20:53:21 +02:00
testgen contrib: make gen_key_io_test_vectors deterministic 2022-04-06 17:02:50 +02:00
tracing contrib: don't use bpf_usdt_readarg_p 2025-02-12 16:28:28 +01:00
utxo-tools contrib: fix read metadata related comment 2025-02-21 16:55:30 +05:30
verify-binaries contrib: Fixup verify-binaries OS platform parsing 2024-06-25 11:32:56 -05:00
verify-commits add ryanofsky to trusted-keys 2023-05-08 23:30:56 -04:00
windeploy windeploy: Renew certificate 2024-05-21 23:19:51 -04:00
zmq scripted-diff: Bump copyright headers 2021-12-30 19:36:57 +02:00
filter-lcov.py scripted-diff: Bump copyright headers 2020-12-31 09:45:41 +01:00
README.md contrib: add tool to convert compact-serialized UTXO set to SQLite database 2024-12-28 02:38:57 +01:00
valgrind.supp doc: Prepend 'build/' to binary paths under 'src/' in docs 2024-08-29 15:23:12 +02:00

README.md

Repository Tools

Developer tools

Specific tools for developers working on this repository. Additional tools, including the github-merge.py script, are available in the maintainer-tools repository.

Verify-Commits

Tool to verify that every merge commit was signed by a developer using the github-merge.py script.

Linearize

Construct a linear, no-fork, best version of the blockchain.

Qos

A Linux bash script that will set up traffic control (tc) to limit the outgoing bandwidth for connections to the Bitcoin network. This means one can have an always-on bitcoind instance running, and another local bitcoind/bitcoin-qt instance which connects to this node and receives blocks from it.

Seeds

Utility to generate the pnSeed[] array that is compiled into the client.

Build Tools and Keys

Packaging

The Debian subfolder contains the copyright file.

All other packaging related files can be found in the bitcoin-core/packaging repository.

MacDeploy

Scripts and notes for Mac builds.

Test and Verify Tools

TestGen

Utilities to generate test vectors for the data-driven Bitcoin tests.

Verify-Binaries

This script attempts to download and verify the signature file SHA256SUMS.asc from bitcoin.org.

Command Line Tools

Completions

Shell completions for bash and fish.

UTXO Set Tools

UTXO-to-SQLite

This script converts a compact-serialized UTXO set (as generated by Bitcoin Core with dumptxoutset) to a SQLite3 database. For more details like e.g. the created table name and schema, refer to the module docstring on top of the script, which is also contained in the command's --help output.