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2024-09-07Un-break and re-fix x86Michael Smith
The last fix was, uh, not good. With any luck this is actually correct now. Certainly, running many millions of test cases fails to find any mismatch with udis, so it's at least a lot less wrong than it was.
2024-09-06Fix more broken x86 casesMichael Smith
Thanks Evan Lin for reporting.
2024-08-23Rewrite the gamedata and entprops systems entirelyMichael Smith
This removes the horrible janky old KeyValues parser and replaces it with a couple of trivial ad-hoc text parsers. In doing so, make the format of the actual gamedata files more human-friendly too. We also gain support for nested SendTables in mkentprops, which are required to get at various things like player velocity. And, the actual string matching is made more efficient (or, at least, more scalable) by way of a cool radix tree thing which generates a bunch of switch cases on distinct characters.
2024-08-23Revise syntax macros and add a ton of branch hintsMichael Smith
My new programming style is branch hints. All non-confusing branches must be hinted when I can be bothered. It's faster, sometimes, maybe. Also, start trying to use more signed sizes in at least some of the places where it makes sense. Unsigned sizes are surprisingly error-prone!
2024-08-22Rework OS abstractionsMichael Smith
- As much as possible avoid dragging system headers into translation units. This should avoid namespace pollution and, hopefully, speed up builds a little bit. - Avoid leaning on the UCRT so much on Windows - prefer native win32 calls and native file handles except where doing so is inconvenient (in particular, for stat(), which we might try and replace later). - Also, switch from SystemFunction036 to ProcessPrng on Windows. This requires us to generate a stub for bcryptprimitives.dll because Microsoft haven't bothered to provide a link library, but the function is better-documented and seems to be a more direct under-the-hood call as well. Apparently it's what's used by the major web browsers these days, which seems like a good indication it's stable and trusted. - Lastly, remove a bunch of functions and macros and stuff that weren't actually being used. It seems good to try and keep the scope of OS-dependent stuff relatively contained and only add to it when actually required.
2023-08-27Get things at least compiling under LinuxMichael Smith
Nothing really works yet, but at least test.h and fastspin are fixed and some of the issues with RTTI and libdl and stuff are maybe kind of sorted, subject to more testing later. The main issue now seems to be the cvar interface not quite lining up and crashing pretty much immediately. That'll probably take a lot more debugging to figure out, which likely still won't be a priority for quite a while.
2023-08-02Make various preparations for upcoming featuresMichael Smith
A lot of this is random WIP from a while back, at least a month ago, and is being committed now to get it out of the way so that other patches can be brought in and integrated against it without causing headaches. Also rolled into this commit is a way to distinguish plugin_unload from exiting the game. This is required for another soon-to-be-integrated feature to avoid crashing on exit, and could in theory also be used to speed up unloading on exit in future. While we're at it, this also avoids the need to linearly scan through the plugin list to do the old branch unloading fix, because we can. Rough summary of the other smaller stuff I can remember doing: - Rework bitbuf a bit - Add some cryptographic nonsense in ac.c (not final at all) - Introduce the first couple of "chunklets" libraries as a sort-of subproject of this one - Tidy up random small bits and bobs - Add source for a small keypair generation tool - Rework democustom to be very marginally more useful
2023-08-02Fix another x86 case and add regression testsMichael Smith
2022-06-27Add update detection, clean up minor stuffMichael Smith
2022-04-24Replace udis86 with a very small x86 decoderMichael Smith
hook_inline() uses the new x86_len() function to get instruction lengths instead of doing full-blown disassembly, which should be a tiny bit quicker, and also removes the next for about 90KiB of lookup tables and such in the final binary. The code-digging logic in demorecord is also rewritten to be opcode-based rather than mnenmonic based. In general, going forward the plan is to always rely on opcodes and thus avoid a bunch of disassembly work every plugin load. udis86 is still in the tree for now to provide dbg_asmdump(), but it's only compiled into debug builds and left out of releases completely. As such, the whole BSD licence statement is also gone from the distribution LICENCE files. There's now also a dbg_toghidra() which spits out a rebased address to look stuff up for proper reverse engineering, which might be more useful than dbg_asmdump() anyway. If nobody ends up using the latter ever again, udis86 could get chucked completely. We'll see. Also shoehorned into this commit are a couple more forgotten copyright year bumps and some general minor cleanup here and there, because I couldn't be bothered wading through all the diff hunks. Oh, and makebindist.bat now makes an effort to make the zip file timestamps predictable/reproducible. That should be a different commit for sure, but oh well too bad.
2022-03-19Fix hook_inline() breaking after a single callWillian Henrique
Committer note: I, mike, am a big dumb idiot. Thanks, Bill.
2022-03-19Fix some old KV parser issuesMichael Smith
- Implement conditionals in the lexer and reject or ignore them in callbacks. This will allow something to use them later if needed. - Make error handling less stupid (return a bool instead of using the state struct).
2021-12-30Split up os.h, inline functions and fix some typosMichael Smith
2021-11-20Initial public snapshotMichael Smith
With code from Bill. Thanks Bill!