mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 18:25:35 -04:00
Matthew Stanley
739994cfcd
Runtime detects an uncovered overlay/kernel variant by sustained dirty-RAM interp pressure inside the capture windows (g_dirty_window_dispatches, sampled every 600 vblanks; fires only at a coherent non-loading moment via cdrom_load_in_progress, 60s cooldown, 16/session cap), writes the capture JSON, and spawns the game.toml-configured compile command ([runtime] overlay_autocompile_cmd, cmd.exe /C, cwd=project root, child output kept in an in-memory ring — no log files). On child exit 0 the emu thread rescans the cache (overlay_loader_rescan: idempotent dir re-scan + checked-regions reset) so the new DLL loads on the next dispatch and the variant goes native in-session. Dedup is tool-side (existing-CRC skip); pressure drops to zero once code is native, so the loop self-limits. New TCP: autocompile_status / autocompile_run / overlay_rescan. compile_dll now uses absolute native paths and reports exit codes. VERIFIED live (user-played route): 2 auto-triggers fired, captures written, child ran recompiler+audit (new variants 1E7DDE2C, A62D0A7C discovered and audit-clean), rescan picked the compiled DLL up in-session. OPEN ISSUE: gcc exits 1 with no output inside the spawned cmd.exe child (same absolute-path command succeeds from an interactive shell) — compile step currently completed manually; suspect child-env difference, to be isolated next session. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
91 lines
4.1 KiB
C
91 lines
4.1 KiB
C
#ifndef OVERLAY_LOADER_H
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#define OVERLAY_LOADER_H
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/* overlay_loader — A-1 runtime overlay DLL cache and dynamic dispatch.
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*
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* On CD DMA completion (overlay_capture_on_dma), the loader checks whether
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* a cached DLL exists for the overlay bytes. If it does, it LoadLibrary's
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* the DLL, calls overlay_init() to wire callbacks, enumerates func_XXXXXXXX
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* exports, and registers each in the dynamic dispatch table.
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*
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* dirty_ram_dispatch calls overlay_loader_dispatch() before the interpreter,
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* so compiled overlay functions get priority over interpretation.
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*/
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#include "cpu_state.h"
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Called at game handoff to set the cache root directory and game ID.
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* cache_dir: absolute path to the cache root (e.g. "build-dev/cache")
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* game_id: product code (e.g. "SCUS-94236") */
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void overlay_loader_init(const char *cache_dir, const char *game_id);
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/* Called from overlay_capture_on_dma after the capture-set insert.
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* Computes CRC32 of bytes, checks cache, loads DLL if present.
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* load_addr: physical RAM address, size/bytes: the transferred data. */
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void overlay_loader_check_cache(uint32_t load_addr, uint32_t size,
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const uint8_t *bytes);
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/* Called from dirty_ram_dispatch before the interpreter.
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* Returns 1 and calls the compiled function if addr is registered,
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* 0 if not found (fall through to interpreter). */
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int overlay_loader_dispatch(CPUState *cpu, uint32_t addr);
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/* Step 2.8: re-scan the cache dir for DLLs compiled after init and clear the
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* checked-regions memo so the next dispatch reconsiders the cache. Idempotent
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* (loaded DLLs stay loaded); emu thread only. */
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void overlay_loader_rescan(void);
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/* True if the cache holds a DLL named <region_start8>_<crc8>.dll. */
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int overlay_loader_has_cached_crc(uint32_t region_start, uint32_t crc);
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/* Returns number of functions currently registered in the dynamic table. */
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int overlay_loader_registered_count(void);
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/* Returns full loader state for TCP diagnostics. */
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void overlay_loader_get_status(int *active, int *registered,
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int *regions_checked,
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char *cache_dir_out, int cache_dir_len,
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char *game_id_out, int game_id_len,
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uint32_t *checked_out, int checked_max,
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int *checked_written,
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uint32_t *last_crc_out, int *last_file_found_out);
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/* Most recent loader event string (DLL load success/failure). Surfaced via
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* the overlay_loader_status TCP command — no stderr logging (Rule 3). */
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const char *overlay_loader_last_msg(void);
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/* Inc3 §8.5: a write into the code range of a currently-executing native
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* overlay entry cannot be recovered lazily — that entry is permanently
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* blacklisted to the interpreter. Called from the psx_write_* store path
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* (memory.c) only when the written page is a watched overlay code page. */
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void overlay_loader_active_write_check(uint32_t phys, uint32_t size);
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/* Inc3 counters, surfaced via overlay_loader_status (field meanings remapped
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* to the per-entry model — see overlay_loader.c getters). */
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void overlay_loader_get_counters(uint32_t *loads, uint32_t *invalidations,
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uint32_t *unregistered,
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uint64_t *disp_native, uint64_t *disp_interp,
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uint64_t *stale_blocked,
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uint32_t *last_write_pc,
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uint32_t *last_write_addr,
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uint32_t *last_write_size,
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int *regions, uint32_t *revalidations);
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void overlay_loader_get_reload_debug(int *r0_valid, uint32_t *r0_writes,
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uint32_t *r0_fn_lo, uint32_t *r0_fn_hi,
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uint32_t *r0_crc_live,
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uint32_t *reval_attempts,
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uint32_t *reval_crc_miss,
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uint32_t *last_reval_crc);
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#ifdef __cplusplus
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}
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#endif
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#endif /* OVERLAY_LOADER_H */
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