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https://github.com/valentderah/totk-pc-recomp.git
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Valiantsin DzerakhandClaude Opus 5.5
583f4b45c2
1.2.1 has no camera aspect patch, so the installer no longer builds romfs-patches-<w>x<h> for it (the layout tool is checked against 1.4.3 and could fail the whole install), and romfs.c overlay_init skips that overlay on 1.2.1 through res_wants_wide_overlay. overlay_init and res_init now both call res_is_16x9 (1% tolerance), so 1366x768 counts as 16:9 and logs no missing overlay. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
298 lines
25 KiB
C
298 lines
25 KiB
C
// Interface of the host runtime: guest memory, modules, kernel, IPC, file system and boot.
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//
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// Guest addresses are host addresses. Every guest-visible region lies below 2^39 (IPC buffer descriptors carry 39
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// address bits). Fixed parts of the guest address map:
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// modules MOD_<X>_BASE from layout.h, from 0x70_0000_0000
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// kernel region RT_KERNEL_BASE, 256 MiB: TLR, TLS blocks, host objects the guest reads (mem_kernel_alloc)
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// host functions RT_HOSTFN_BASE, 1 MiB, never accessible: synthetic addresses of host functions
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// The stack, heap and alias regions are placed at start-up (mem_layout).
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#pragma once
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include "cpu.h"
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#include "dispatch.h"
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// ---- logging and results
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void rt_log(const char *fmt, ...) __attribute__((format(printf, 1, 2))); // "[host] <msg>\n" to the log, one write
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// The log is stderr plus, in a game run whose stderr is not a file, logs\totk.log next to totk.exe (main.c log_open).
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// rt_logf and rt_log_raw write to both without the prefix and the newline: crash reports, fatal errors, guest output.
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void rt_logf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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void rt_vlogf(const char *fmt, va_list ap);
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void rt_log_raw(const char *p, size_t n);
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const char *rt_log_path(void); // the log file, NULL when this run writes none
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enum { RT_TRACE_SVC = 1, RT_TRACE_HOSTCALL = 2, RT_TRACE_IPC = 4, RT_TRACE_FS = 8, RT_TRACE_GFX = 16, RT_TRACE_PERF = 32,
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RT_TRACE_SCHED = 64, RT_TRACE_AUDIO = 128, RT_TRACE_PRESENT = 256 };
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extern unsigned rt_trace; // from TOTK_TRACE=svc,host,ipc,fs,gfx,perf,sched,audio,present (or all)
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// prof_win.c: TOTK_PROFILE=<path> sampling profiler; TOTK_TRACE=perf frame timing (waits of the render thread)
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// PERF_TEX: texture uploads on the render thread (deswizzle, decode, staging), PERF_ASTC included
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enum { PERF_PACE, PERF_FENCE, PERF_DRAIN, PERF_PIPE, PERF_XLATE, PERF_TEX, PERF_ASTC, PERF_N };
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void prof_start(void);
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void prof_write(void); // idempotent; boot.c calls it before _exit
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uint64_t perf_begin(void); // start time of a wait; pair with perf_end
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void perf_end(int kind, uint64_t t0); // counts render-thread time only
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void perf_replay(uint64_t t0); // replay (NVN -> Vulkan recording) time on any thread, waits inside it included
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void perf_replay_thread(void); // the calling thread replays for the render thread: perf_end counts its waits
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void perf_main_thread(void); // the calling thread is the guest main thread (TOTK_PROFILE_MAIN)
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// Events per 60-frame window: graphics pipelines finished by the background workers, draws skipped while pending,
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// first texture uploads and re-uploads after CPU writes, draws skipped while a shader translates in the background,
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// draws that waited for their pending pipeline and got it, draws into a target the previous frame did not render that
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// waited for their pending shader or pipeline instead of being skipped (vk_exec_draw.c prepare_draw). The rest feed only
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// the flight recorder (flight.c): graphics pipelines created on any thread, texture images created, images created at an
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// address where a live image of another descriptor already starts, write-backs done and skipped because the CPU
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// rewrote the storage after the GPU render (vk_texture.c vk_texture_write_back).
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enum { PERF_CNT_PIPE_ASYNC, PERF_CNT_PIPE_SKIP, PERF_CNT_TEX_UP, PERF_CNT_TEX_REUP, PERF_CNT_SHADER_SKIP,
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PERF_CNT_PIPE_WAIT, PERF_CNT_ONESHOT_WAIT, PERF_CNT_PIPE_BUILT, PERF_CNT_TEX_NEW, PERF_CNT_TEX_ALIAS,
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PERF_CNT_WB, PERF_CNT_WB_SKIP, PERF_CNT_N };
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void perf_count(int kind);
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void perf_present(uint64_t frame);
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void perf_summary_flush(void); // prints the frame-time summary of the running period (exit); the 60 s lines come from perf_present
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void gfx_exit_log(void); // back end's lines for the exit summary (weak no-op in prof_win.c)
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void perf_gpu_wait(uint64_t t0); // a wait for a GPU fence ended (any thread; the render thread's also counts as PERF_FENCE)
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// GPU side of the 60-frame perf line, filled by the graphics back end when it set perf_gpu_stats. gpu_ns: GPU busy time
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// since the previous call (timestamp queries, overlaps counted once), have_gpu 0 when the device has no timestamps.
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typedef struct {
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int have_gpu, have_vram, vram_exact;
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uint64_t gpu_ns, gpu_parts, gpu_missed; // busy time, submission parts timed, parts left untimed
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uint64_t vram_used, vram_budget;
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} PerfGpu;
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extern void (*perf_gpu_stats)(PerfGpu *out);
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// The performance overlay (perfmon.c): mode 0 off, 1 fps, 2 full. While it is on, perf_present hands every frame to
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// perfmon_frame; full also takes the event counts (perf_count) and the GPU timestamps as TOTK_TRACE=perf does.
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void perf_set_overlay(int mode);
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int perf_gpu_timing(void); // GPU timestamps wanted: TOTK_TRACE=perf or the full overlay
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void perf_gpu_busy(uint64_t ns); // GPU busy time of a timed submission part (vk_sync.c, any thread)
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uint64_t perf_gpu_busy_total(void); // its running total (the overlay's GPU time per frame)
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#define RT_RESULT(module, desc) ((uint32_t)(module) | ((uint32_t)(desc) << 9))
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void rt_sha256(const void *p, size_t n, uint8_t out[32]); // BCrypt; fatal if the provider fails
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// ---- guest address map (fixed part)
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#define RT_ADDRESS_LIMIT (1ull << 39)
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#define RT_KERNEL_BASE 0x7010000000ull
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#define RT_KERNEL_SIZE 0x10000000ull
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#define RT_HOSTFN_BASE 0x7020000000ull
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#define RT_HOSTFN_SIZE 0x100000ull
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// ---- AAPCS64 argument access for host functions (section 2.2)
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static inline uint64_t arg_x(const Cpu *c, int i) { return i < 8 ? c->x[i] : LD64(c->sp + 8 * (uint64_t)(i - 8)); }
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static inline void *arg_p(const Cpu *c, int i) { return (void *)(uintptr_t)arg_x(c, i); }
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static inline float arg_s(const Cpu *c, int i) { uint32_t b = (uint32_t)c->v[i]; float f; memcpy(&f, &b, 4); return f; }
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static inline double arg_d(const Cpu *c, int i) { uint64_t b = (uint64_t)c->v[i]; double d; memcpy(&d, &b, 8); return d; }
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static inline void ret_x(Cpu *c, uint64_t v) { c->x[0] = v; }
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static inline void ret_s(Cpu *c, float f) { uint32_t b; memcpy(&b, &f, 4); c->v[0] = b; }
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static inline void ret_d(Cpu *c, double d) { uint64_t b; memcpy(&b, &d, 8); c->v[0] = b; }
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// ---- host functions (hostfn.c)
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// Every host function is a GuestFn at a synthetic address RT_HOSTFN_BASE + 16*i. It runs on the calling guest thread,
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// may clobber x0-x18, v0-v7, v16-v31, must preserve x19-x29, sp, v8-v15, tpidr, and returns to the guest BL site with
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// a C return. On entry c->pc holds the function's own synthetic address.
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typedef struct { const char *name; GuestFn fn; } RtHostEntry;
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#define RT_CAT2(a, b) a##b
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#define RT_CAT(a, b) RT_CAT2(a, b)
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// File-scope declarations; fn must be declared before. The loader binds them by symbol name.
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#define HOST_OVERRIDE(sym, fn) /* replaces sym in every GOT/GLOB_DAT/ABS64 of every module */ \
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__attribute__((used, section(".ovr$m"))) static const RtHostEntry RT_CAT(rt_ovr_, __COUNTER__) = {sym, fn}
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#define HOST_OBSERVER(sym, fn) /* JUMP_SLOT only; fn calls rt_original(c) */ \
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__attribute__((used, section(".obs$m"))) static const RtHostEntry RT_CAT(rt_obs_, __COUNTER__) = {sym, fn}
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uint64_t hostfn_register(const char *name, GuestFn fn); // synthetic address; before hostfn_seal only. The same
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// (name, fn) pair returns the same address
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GuestFn hostfn_override(const char *name); // NULL if none
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GuestFn hostfn_observer(const char *name); // NULL if none
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void hostfn_add_override(const char *name, GuestFn fn); // an override outside the linker table (probes); before
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// ldr_load
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const char *hostfn_name(uint64_t addr); // name registered at a synthetic address, NULL if none
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void hostfn_seal(void); // build the dispatch table (rt_dispatch_init over every
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// linked module); idempotent; registration ends here
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uint64_t hostfn_calls(void); // host-function calls so far, all threads
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void hostfn_report(void); // call count per host function to stderr, busiest first
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int hostfn_table_size(int observers); // linked HOST_OVERRIDE (0) / HOST_OBSERVER (1) entries
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const char *hostfn_table_name(int observers, int i); // symbol of linked entry i, NULL past the end
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uint64_t rt_original(Cpu *c); // inside an observer: call the guest definition with the
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// current x0..x7, return x0. Uses c->pc, so call it before
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// anything that changes c->pc (rt_call restores it)
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uint64_t rt_call(Cpu *c, uint64_t fn, int n, ...); // host -> guest, section 2.3. n <= 8 arguments, each read
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// as uint64_t: cast every argument. Seals the dispatch
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// table on first use. Sets x30 = RT_RET_HOST, restores
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// x30 and pc, returns x0. Does not touch sp
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#define RT_RET_HOST 0x70200ff000ull // x30 sentinel inside the host-function window; a jump to
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// it is a named fatal
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// ---- guest memory (memory.c)
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typedef struct { uint64_t base, size; } RtRange;
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typedef struct { RtRange aslr, stack, heap, alias, kernel, hostfn; uint64_t pool; } RtGuestLayout;
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typedef struct { uint64_t base, size; uint32_t state, attr, perm, ipc, device, pad; } RtMemoryInfo; // Horizon layout
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void mem_init(void); // reserve every region; on a collision re-run the process
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// (up to 20 times, TOTK_REEXEC), then fatal
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const RtGuestLayout *mem_layout(void);
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uint32_t mem_set_heap_size(uint64_t size, uint64_t *addr); // 0x01
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uint32_t mem_set_permission(uint64_t a, uint64_t n, uint32_t perm); // 0x02
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uint32_t mem_set_attribute(uint64_t a, uint64_t n, uint32_t mask, uint32_t at); // 0x03
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uint32_t mem_map(uint64_t dst, uint64_t src, uint64_t n); // 0x04
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uint32_t mem_unmap(uint64_t dst, uint64_t src, uint64_t n); // 0x05
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uint32_t mem_query(uint64_t a, RtMemoryInfo *out); // 0x06
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uint32_t mem_map_physical(uint64_t a, uint64_t n); // 0x2C
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uint32_t mem_unmap_physical(uint64_t a, uint64_t n); // 0x2D
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int mem_info(uint32_t id, uint64_t *out); // GetInfo memory ids 2-7, 12-17, 21, 22, 28; 0 if not a memory id
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void *mem_kernel_alloc(uint64_t size, uint64_t align); // zeroed, guest-visible, in the kernel region; align <= 64 KiB
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uint64_t mem_written_pages(uint64_t addr, uint64_t size, uint64_t *pages, uint64_t max);
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// GetWriteWatch(RESET): fills pages[] (4 KiB addresses)
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// with the pages of [addr, addr+size) written since the
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// last call, returns their count (at most max; a page
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// past max stays reported next time). The range must lie
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// inside the stack/heap block or the alias region
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// (write watch); otherwise returns UINT64_MAX
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uint64_t mem_written_peek(uint64_t addr, uint64_t size, uint64_t *pages, uint64_t max);
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// the same without the reset: the bits stay for the next
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// mem_written_pages (verify checks only)
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int mem_freeze(uint64_t a); // makes the 2 MiB region at a (2 MiB aligned, watched,
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// committed PAGE_READWRITE) read-only until a write or
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// mem_thaw thaws it; 1 frozen (or already), 0 refused
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int mem_frozen(uint64_t a); // the 2 MiB region of a is frozen: no page in it changed
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// since its freeze
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void mem_thaw(uint64_t a, uint64_t n); // makes the frozen regions over [a, a+n) writable again;
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// before a kernel write (file read) into guest memory
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void mem_freeze_stats(uint64_t *frozen, uint64_t *freezes, uint64_t *fault_thaws, uint64_t *other_thaws);
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// regions frozen now; freezes and thaws since the last call
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void mem_kernel_free(void *p, uint64_t size); // TLR/TLS reuse after thread exit
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// ---- modules (loader.c)
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typedef struct {
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const char *name; uint64_t base, size, text_end, data_off; // text_end, data_off: offsets from base
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uint64_t init, init_array, init_array_size, ctor_flag; // absolute guest addresses; init_array_size in bytes
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} RtLoaded;
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void ldr_load(const char *exefs_dir); // load, relocate (overrides applied), seal; once
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int ldr_count(void);
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const RtLoaded *ldr_module(int i); // order: main, subsdk0, sdk
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uint64_t ldr_symbol(const char *name); // exported definition, 0 if none
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uint64_t ldr_plt_stub(const char *module, const char *name); // PLT stub whose GOT slot holds name, 0 if none
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const char *ldr_describe(uint64_t a, char *buf, int n); // "main+0x1234 (symbol+0x10)", "host <name>", or the address
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uint8_t *ldr_read_verified(const char *dir, const char *file, size_t *len); // whole file, SHA-256 checked against
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// modules.c (fatal on mismatch); free() it
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// Written by tools/build_game.py into build/<version>/modules.c.
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typedef struct { const char *file, *sha256; } RtFileHash;
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extern const RtFileHash rt_exefs_sha256[]; // tools/data/expected-<version>.json "exefs_sha256"
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extern const int rt_exefs_sha256_count;
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extern const char rt_default_exefs[], rt_default_romfs[], rt_default_profile[];
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extern const int rt_game_version; // the game build: 121 (1.2.1) or 143 (1.4.3)
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extern const char rt_port_version[]; // VERSION at the build's root: 0.1.0, 0.1.0+973c626 in a release
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#define RT_V143 (rt_game_version >= 143)
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// ---- kernel (kernel.c)
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typedef struct RtThread RtThread;
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Cpu *kern_cpu(void); // current guest thread's Cpu, NULL on host threads
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uint32_t kern_main_thread(Cpu **cpu); // main thread object and Cpu for the calling host thread
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// (main.npdm: 1 MiB stack at the top of the stack region,
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// priority 44, core 0); on the main thread: its handle
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void kern_main_stack(uint64_t *base, uint64_t *size); // the main thread's stack, size 0 before kern_main_thread;
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// svc.c reports it to QueryMemory, memory.c does not know it
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void kern_run_on_guest_main(void (*fn)(Cpu *c)); // start the guest main host thread, run fn there, join
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int kern_core_away(void); // give the virtual core up around a blocking host wait
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void kern_core_back(int *away);
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void kern_checkpoint(void); // preemption point, at every SVC and indirect call
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// A preempt request is pending for the thread (Cpu.thread): its RtThread starts with the flag (kernel.c).
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static inline int kern_preempt_pending(const void *thread) { return __atomic_load_n((const int *)thread, __ATOMIC_RELAXED); }
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// Set once before guest threads start (TOTK_CORE_DIAG, TOTK_ASYNC_PREEMPT): host calls (hostfn.c) and SVCs (svc.c) count their depth in
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// the thread's second int, so the kernel knows whether a core owner runs game code at the top level.
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extern int kern_host_track;
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static inline int *kern_host_depth(void *thread) { return (int *)thread + 1; }
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void kern_host_left(void *thread); // back at depth 0 with a preempt request pending
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int kern_core_diag_on(void); // TOTK_CORE_DIAG
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void kern_core_diag_frame(uint64_t frame, uint64_t interval_ns); // perf_present, every present (also logs the
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// asynchronous preemption counters)
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void kern_sched_report(uint64_t frame); // TOTK_TRACE=sched: per-thread time split, on present
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uint32_t kern_handle_new(int kind, void *obj); // kind: KERN_SESSION or KERN_TMEM (ipc.c)
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void *kern_handle_get(uint32_t h, int kind);
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void kern_handle_close(uint32_t h); // CloseHandle from the host side, any thread; fatal on a
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// bad handle
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enum { KERN_SESSION = 4, KERN_TMEM = 5 };
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uint32_t kern_event_new(void); // writable handle
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uint32_t kern_event_readable(uint32_t writable);
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void kern_event_signal(uint32_t writable);
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void kern_bind_system_event(Cpu *c, uint64_t ev, int autoclear); // guest thread only
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void kern_signal_system_event(uint64_t ev); // any thread
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int kern_svc(Cpu *c, uint32_t imm); // thread/sync SVCs; 1 if handled
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uint64_t kern_now_ns(void);
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extern uint64_t rt_guest_start_ns; // kern_now_ns when the guest started (boot.c), 0 before
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typedef struct { uint64_t svcs, threads, host_calls; } RtStats;
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RtStats rt_stats(void); // host_calls: hostfn_calls()
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// ---- IPC (ipc.c)
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int ipc_svc(Cpu *c, uint32_t imm); // 0x15, 0x1F, 0x21, 0x22; 1 if handled
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void ipc_handle_closed(int kind, void *obj); // CloseHandle on a KERN_SESSION/KERN_TMEM handle
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// ---- file system (romfs.c / fs_host.c)
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void fs_init(void); // idempotent; paths from rt_config()
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// ---- account (ov_system.c)
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void account_uid(uint64_t out[2]); // the local user's nn::account::Uid {lo, hi}, persistent in
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// <profile>/account.uid; fs_host.c names save data after it
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// ---- movies (ov_movie.c)
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void movie_tick(Cpu *c); // at every present, on the presenting guest thread: hands
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// decoded movie frames over when due, signals their events
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// ---- game resolution (resolution.c): TOTK_OUTPUT_RES, TOTK_RENDER_SCALE
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uint64_t res_heap_extra_bytes(void); // added to the application pool (mem_init), 2 MiB steps
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uint64_t res_heap_extra_kib(void); // added to the HeapDef texture heap and its parent; 0 = none
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int res_heapdef_build(const void *in, size_t n, void **out, size_t *out_n); // the HeapDef table (.byml.zs) with
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// the grown heaps, malloc'd; 0 = cannot (logged)
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void res_heapdef_served(void); // romfs.c serves the grown table
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void res_init(void); // after rt_patches_init: the patch page and the sets
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void res_sizes(unsigned out[2], unsigned scene[2]); // the output and scene sizes in effect (the game's own
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// until res_init switched the sets on)
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int res_is_16x9(unsigned w, unsigned h); // within 1% of 16:9 (the test res_init and romfs.c share)
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int res_wants_wide_overlay(const unsigned out[2]); // not 16:9 on a game version with the camera aspect patch
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void res_wanted(unsigned out[2]); // the output size TOTK_OUTPUT_RES asks for
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// ---- code patches (patches.c) and the frame step (frame_rate.c)
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void rt_patches_init(void); // after ldr_load: switches from the environment, the patch
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// page committed; logs the sets
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int rt_patch_set(const char *name); // index of a set of generated patches.h, -1 if absent
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int rt_patch_enabled(int set); // the set is on (0 for -1)
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void rt_patch_disable(int set); // before the guest starts: a set needs another that is off
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void rt_patch_switch(int set, int on); // at run time (live settings): each site takes the new code
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// the next time it runs
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void *rt_patch_page(void); // the page the patched code reads (NULL without the table)
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void frame_step_init(void); // after rt_patches_init: the real-time step's first value
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int frame_step_realtime(void); // the real-time step is on: presents ignore the interval
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uint64_t frame_step_cap_ns(void); // with the real-time step: the shortest frame in ns
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double frame_step_limit_hz(void); // the frame rate the limit gives (overlay); 0 unknown
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int64_t frame_step_world_us(void); // game time since the loaded save's first frame, -1 before
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// (TOTK_FPS_LIMIT, live)
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uint64_t frame_step_ticks(void); // game time since the first present in 60 Hz ticks (input scripts)
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// In-launch A/B measurement: TOTK_AB=<seconds> splits the world clock (frame_step_world_us) into blocks of that much
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// game time in the order A B B A (repeated); rt_ab() is 1 in the B blocks, 0 in A blocks, before the world clock and
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// without TOTK_AB. rt_knob(name, def) reads the switch
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// TOTK_<name> once per call (def when unset): 0 off, 2 for "ab" (on in the B blocks only), 1 for anything else;
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// callers keep it and test it with RT_KNOB_ON. The perf line counts the B frames of its window (tools/ab_summary.py
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// compares the windows that are wholly A or wholly B).
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int rt_ab(void);
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int rt_knob(const char *name, const char *def);
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#define RT_KNOB_ON(mode) ((mode) == 2 ? rt_ab() : (mode))
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void frame_step_present(uint64_t display_ns, int interval); // nvnQueuePresentTexture: the frame's display time and
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// present interval (60 Hz ticks)
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// ---- boot (boot.c, main.c)
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typedef struct { const char *exefs, *romfs, *profile; int boot; double seconds; const char *shot, *gpu; } RtConfig;
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// romfs: directory with romfs.bin and index.json;
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// frames: --frames N (0 = no limit); shot: --shot
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// PATH; gpu: TOTK_GPU
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const RtConfig *rt_config(void);
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void rt_boot_event(const char *what, Cpu *c, const char *detail); // checkpoint log; "nvn" ends --boot
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void rt_boot(void); // boot.c
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// Modes of totk.exe. main.c has run mem_init and parsed the paths; each mode calls ldr_load itself if it needs the
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// modules, registers its host functions, then seals (hostfn_seal, or implicitly at the first rt_call). Return the
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// process exit code.
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int probe_cfg(void); // cfg_probe.c
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int probe_dpi(void); // dpi_probe.c
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int probe_loader(void), probe_kernel(void), probe_ipc(void), probe_services(void), probe_fs(void);
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int probe_gfx_abi(void); // gfx_abi_probe.c
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int probe_vkdevice(void); // vk_device.c
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int probe_nvn(void), probe_nvn_tex(void); // nvn_probe.c, nvn_tex_probe.c
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int probe_window(void); // gfx_window.c
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int probe_shader(void); // gfx_shader.c
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int probe_vkmem(void), probe_vkexec(void), probe_astc(void); // tex_probe.c, vk_exec_probe.c, astc_probe.c
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int probe_movie(void); // movie_probe.c: host VP9 movie::Decoder on one RomFS movie
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int vk_pipeline_prepare_shaders(void); // vk_pipeline.c: --prepare-shaders (tools/prepare_shaders.py)
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int vk_pipeline_warm_shaders(void); // vk_pipeline.c: --warm-shaders (tools/build_game.py)
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