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Feature/stub by address (#61)

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* feat: split runtime code in small files to be easy to develop

* feat: split stubs in inl files

* feat: function auto link function treat functions with underscore as same as without underscore

* feat: remove underscore prefix from stubs

* feat: thread and flags refactor

* feat: propagate request stop
feat: some elf validation on runtime

* feat: remove Z7 compiler options
feat: added a literal float case error on vu

* fix: fix critical recompiler error on marking pc calls

* feat: better system interrupt
refactor: small refactor on thread system

* feat: stubs implements for resident evil code veronica

* feat: merge fileio

* feat: stub by address

* feat: codegen now auto-routes J/JAL callssites with known relocation symbols to syscalls/stubs
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Ranieri
2026-02-18 01:35:20 -03:00
committed by GitHub
parent 4a538d3589
commit 043bf3bf8d
8 changed files with 158 additions and 17 deletions
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README.md
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@@ -34,6 +34,8 @@ The translated code is very literal, with each MIPS instruction mapping to a C++
### Current Behavior
* `stubs` entries generate wrappers that call known runtime syscall/stub handlers by name.
* `stubs` also supports address bindings with `handler@0xADDRESS` for stripped games (for example `sceCdRead@0x00123456`).
* Recompiler now tries relocation-symbol auto-binding at callsites (`J/JAL`) before raw address dispatch; when relocation symbol is known (for example `sceCdRead`), it can call runtime handlers without manual address mapping.
* `skip` entries are not recompiled and generate explicit `ps2_stubs::TODO_NAMED(...)` wrappers.
* Recompiled `SYSCALL` now calls `runtime->handleSyscall(...)` with the encoded syscall immediate.
* Runtime syscall dispatch tries encoded syscall ID first, then falls back to `$v1`.
@@ -82,10 +84,19 @@ Main fields in `config.toml`:
* `general.patch_syscalls`: apply configured patches to `SYSCALL` instructions (`false` recommended).
* `general.patch_cop0`: apply configured patches to COP0 instructions.
* `general.patch_cache`: apply configured patches to CACHE instructions.
* `general.stubs`: names to force as stubs.
* `general.stubs`: names to force as stubs. Also accepts `handler@0xADDRESS` to bind a stripped function address directly to a runtime syscall/stub handler.
* `general.skip`: names to force as skipped wrappers.
* `patches.instructions`: raw instruction replacements by address.
Address binding for stripped ELFs:
* Use `handler@0xADDRESS` inside `general.stubs` to map a stripped function start directly to a runtime handler.
* Example: `sceCdRead@0x00123456` binds function start `0x00123456` to `ps2_stubs::sceCdRead(...)`.
* Before manual binding, try plain recompilation first: if ELF relocation symbols are present for calls, runtime handler routing can be inferred automatically.
* The address must be the function start in that exact ELF build.
* Addresses are not portable across different games/regions/builds.
* The handler name must exist in runtime call lists (`PS2_SYSCALL_LIST` or `PS2_STUB_LIST`).
Example:
```toml
@@ -101,6 +112,11 @@ patch_cache = true
stubs = ["printf", "malloc", "free"]
# stripped function binding by address:
# stubs = ["sceCdRead@0x00123456", "SifLoadModule@0x00127890"]
# mixed example:
# stubs = ["printf", "sceCdRead@0x00123456", "SifLoadModule@0x00127890"]
skip = ["abort", "exit"]
[patches]
@@ -131,4 +147,4 @@ To execute the recompiled code.
* Inspired by N64Recomp
* Uses ELFIO for ELF parsing
* Uses toml11 for TOML parsing
* Uses fmt for string formatting
* Uses fmt for string formatting