Questions tagged [debugging]

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Building Bitcoin Core on Linux/Ubuntu with Visual Studio Code

Does anyone developing Bitcoin Core use VSCode for compilation and debugging on Linux/Ubuntu? How can one configure VSCode to compile Bitcoin Core?
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1answer
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When would I use USDT tracing over debugging? How do they compare and complement each other?

I am starting to learn about USDT tracing that 0xB10C hosted a PR review club on in May 2021 and is covered in this blog post. I am still a little unclear when I would reach for this tool (assuming I ...
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Wallet from 2011

dat in an old hard drive but it seems like its overwrited with some windows sh**. Is there any way to recover it or recover other data from the other files like debug.log or db, or addr?
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Debugging does not work after v0.21 tag

If I clone Bitcoin Core from the repository and switch to version v0.21 (git checkout tags/v0.21.0), the debugging (gdb src/qt/bitcoin-qt or gdb src/bitcoind) will work as expected. But If I clone the ...
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1answer
56 views

What do these memory configurations in debug.log of BitCoin Core represent?

In the debug.log file of BitCoin Core, the cache configuration is described as follows. Cache configuration: Using 2.0 MiB for block index database Using 8.0 MiB for chain state database Using ...
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1answer
103 views

What possible explanation could there be that Bitcoin Core on Linux Mint claims to but does not save the wallet backups?

Linux Mint. Bitcoin Core 0.21.0. I go to "File" and "Backup wallet", then select any location. I've tried with /home/a and /tmp and others. Every time, Bitcoin Core says that the ...
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1answer
56 views

How do I debug Taproot functional tests using pdb?

I am looking at the some of the Taproot functional tests such as feature_taproot.py to review the open Taproot PR. I would like to use pdb to debug these tests. Can you provide some guidance on how to ...
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1answer
142 views

What is Valgrind? When should I use it for debugging Bitcoin Core over using gdb, lldb, pdb etc?

I was watching Fabian Jahr's presentation on debugging Bitcoin Core at Bitcoin Edge Dev++ 2019. He mentioned Valgrind briefly at the end. What is it and when should I use it over gdb, lldb, pdb etc?
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312 views

How do I get started debugging Bitcoin Core functional tests?

I would like to get started with debugging Bitcoin Core code. I have heard debugging Bitcoin Core functional tests is a good place to start as they are in Python rather than C++ and they are easier to ...
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2answers
278 views

Debugging Bitcoin Core with gdb - how to turn off compiler optimizations

I ran the configure script with the --enable-debug flag, then ran make. I am running unit tests: gdb --args src/test/test_bitcoin --log_level=all --run_test=script_standard_tests I'm trying to step ...
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1answer
119 views

Converting raw scriptPubKey to readable format

I am debugging Bitcoin cpp code. I wanted to see what exactly come for scriptPubKey property of output. Theoretically, I know this but I want to see in the code how does it looks like. Now while ...
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1answer
266 views

bitcoin debug withe clion

I got this error when I have tried to compile on lubuntu 16.04 34: error: expected ‘)’ before ‘host_16bits’ inline uint16_t htole16(uint16_t host_16bits) using clion, is there any guide on how to ...
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1answer
321 views

Debugging Bitcoin Unit Tests

I am running the unit tests from bitcoin source using make check, and would like to debug the tests using LogPrint in the bitcoin source files. I read in the Test Docs that logs are only output to ...
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1answer
3k views

What are the debug categories?

In the bitcoin configuration you can set debug logging for the following categories. I can't seem to find an explanation of what each of these categories does. Can someone explain them or point me in ...
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1answer
1k views

How to debug bitcoin core in "real time"

I am new to bitcoin core and C++ I downloaded already the project from: https://github.com/bitcoin/bitcoin and run "makefile" command. Now I can make all transaction against the blockchain. I want ...
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2answers
2k views

What IDE to use for Bitcoin development?

I want to experiment with Bitcoin's code (both Core and Unlimited, if it makes a difference). I really wanted to use CLion, but was unable to compile it and make it work (something to do with using a ...
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2answers
1k views

Debugging bitcoind

How do you attach a gdb to a bitcoind daemon. I wish to step through the functions. Here is what i have tried. gdb --args bitcoind -regtest -daemon This however exists when the daemon starts. So i ...