Implement GDB/LLDB compatible server #3

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SonicSwordcane merged 33 commits from debugger into main 2025-01-19 00:13:43 +00:00

Conversation 0 Commits 33 Files Changed 18 +2342 -127

SonicSwordcane commented 2025-01-18 22:15:50 +00:00

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The v810 llvm fork comes with a working version of lldb. This PR implements the remote debugger protocol used by lldb and gdb. With these two tools combined, we have source-level debugging support for Virtual Boy games written in C, C++, or rust!

Also includes more build optimizations, to hopefully keep the emulator running in real time even when lots of breakpoints/watchpoints are enabled. And some boring application lifecycle fixes.

The [v810 llvm fork](https://github.com/SupernaviX/v810-llvm) comes with a working version of lldb. This PR implements the remote debugger protocol used by lldb and gdb. With these two tools combined, we have source-level debugging support for Virtual Boy games written in C, C++, or rust! Also includes more build optimizations, to hopefully keep the emulator running in real time even when lots of breakpoints/watchpoints are enabled. And some boring application lifecycle fixes.

SonicSwordcane added 31 commits 2025-01-18 22:16:02 +00:00

47a05968fb Create tcp server

0a5e223ba7 Handle one message

014b9ebbfa Handle the kill packet

b94ae4d586 Add support for moar commands

2c5084d317 CLI argument to start the server at startup

24487b21b7 Support pausing and resuming

9519897711 Separate GDB request and response into structs

d016538408 Stub out reading registers and memory

8707a5196b Return register info

82c3104ab9 Read actual register values

be8cdd958a Implement reading from real memory

a5b5f8e80f Use explicit states for sims

11df670ff4 Let emulator tell debugger to stop

856ee00999 Fix bugs around debugging lifecycle

d6eb8ec7ef Implement execute breakpoints

6fd8d8f5cf Improve flow of command-line debugging

84f2cf7ece Implement stepping

2cf99dbc21 Fix wrapping memory reads for 64-bit addresses

fda738fb93 Fix some debug protocol issues

d99344eb15 Merge branch 'main' into debugger

fd7298d24e Add a checkbox to quit on disconnect

af9a4ae8ee Support watchpoints

f1c5571aa6 Tell LLDB to use big watch regions

102aff1580 Turn LTO on when cutting releases

f031bb17b2 Use logging

17d3811124 No debugging unless the game is running

0fff4d427f Implement writing registers

5ce39fb70e Implement writing memory

9f7895a457 Statically compile callbacks

e1a8006af7 Statically compile that callback too

9d37d22a22 Fix LTO for windows/linux, disable for OSX

SonicSwordcane added 2 commits 2025-01-19 00:11:56 +00:00

d59da1009a Fix watchpoint reporting

16a2aaee92 Fix status returned on interrupt

SonicSwordcane merged commit 707dd3a200 into main 2025-01-19 00:13:43 +00:00

SonicSwordcane referenced this issue from a commit 2025-01-19 00:13:46 +00:00

Merge pull request 'Implement GDB/LLDB compatible server' (#3) from debugger into main

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Reference: PVB/lemur#3

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