fanquake 4b24f6bbb5
Merge bitcoin/bitcoin#23302: tracing: drop GetHash().ToString() argument from the validation:block_connected tracepoint
53c9fa9e6253ea89ba1057b35e018ad1a25fb97e tracing: drop block_connected hash.toString() arg (0xb10c)

Pull request description:

  The tracepoint `validation:block_connected` was introduced in #22006.
  The first argument was the hash of the connected block as a pointer
  to a C-like String. The last argument passed the hash of the
  connected block as a pointer to 32 bytes. The hash was only passed as
  string to allow `bpftrace` scripts to print the hash. It was
  (incorrectly) assumed that `bpftrace` cannot hex-format and print the
  block hash given only the hash as bytes.

  The block hash can be printed in `bpftrace` by calling
  `printf("%02x")` for each byte of the hash in an `unroll () {...}`.
  By starting from the last byte of the hash, it can be printed in
  big-endian (the block-explorer format).

  ```C
    $p = $hash + 31;
    unroll(32) {
        $b = *(uint8*)$p;
        printf("%02x", $b);
        $p -= 1;
    }
  ```

  See also: #22902 (comment)

  This is a breaking change to the block_connected tracepoint API, however
  this tracepoint has not yet been included in a release.

ACKs for top commit:
  laanwj:
    Concept and code review ACK 53c9fa9e6253ea89ba1057b35e018ad1a25fb97e
  jb55:
    ACK 53c9fa9e6253ea89ba1057b35e018ad1a25fb97e

Tree-SHA512: f1b9e4e0ee45aae892e8bf38e04b5ee5fbc643d6e7e27d011b829ed8701dacf966a99b7c877c46cca8666b894a375633e62582c552c8203614c6f2b9c4087585
2021-10-19 16:05:39 +08:00
..
2021-05-12 10:06:37 +02:00
2021-07-23 21:23:37 +05:30
2021-07-30 11:21:51 +02:00
2021-02-04 12:06:13 +00:00
2021-01-07 18:07:10 +02:00
2021-08-31 09:37:23 +08:00
2021-06-20 16:56:08 +02:00

Bitcoin Core

Setup

Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.

To download Bitcoin Core, visit bitcoincore.org.

Running

The following are some helpful notes on how to run Bitcoin Core on your native platform.

Unix

Unpack the files into a directory and run:

  • bin/bitcoin-qt (GUI) or
  • bin/bitcoind (headless)

Windows

Unpack the files into a directory, and then run bitcoin-qt.exe.

macOS

Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.

Need Help?

Building

The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.

Development

The Bitcoin repo's root README contains relevant information on the development process and automated testing.

Resources

Miscellaneous

License

Distributed under the MIT software license.