fix(exports): export the PS VR2 calls PPSA07411 imports that no library has

PPSA07411 (Resident Evil 4) fails to load without these imports. Their signatures are unknown, so they are declared without parameters and throw until they are implemented. Adds a TechnicalDebt entry.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

core/libs/prx/libSceHmd2/Export.cpp

@@ -16,6 +16,16 @@ std::int32_t APS5_VABI sceHmd2Initialize(const void* param) {
     return SCE_HMD2_ERROR_UNSUPPORTED_FEATURE;
 }
 
+int APS5_VABI sceHmd2GetDeviceInformationByHandle() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI sceHmd2Terminate() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 int APS5_VABI sceHmd2Close() {
     NotImplemented_nid_no_patch(__func__);
     return 0;

core/libs/prx/libScePad/Export.cpp

@@ -35,6 +35,21 @@ int APS5_VABI scePadClose_nid_postfix(int handle) {
  return PAD_OK;
 }
 
+int APS5_VABI scePadVrControllerSetVibration() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI scePadVrControllerSetVibrationMode() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI scePadVrControllerReadCombinedState() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 int APS5_VABI scePadDeviceClassGetExtendedInformation(int handle, PadDeviceClassExtendedInformation* info) {
  if (handle != PAD_HANDLE) return PAD_ERROR_INVALID_HANDLE;
  if (info == nullptr) return PAD_ERROR_INVALID_ARG;

core/libs/prx/libSceVrTracker2/Export.cpp

@@ -10,6 +10,11 @@ int APS5_VABI sceVrTracker2Finalize() {
     return 0;
 }
 
+int APS5_VABI sceVrTracker2ResetLocalCoordinate() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 int APS5_VABI sceVrTracker2GetPlayAreaOrientedBoundingBox() {
     NotImplemented_nid_no_patch(__func__);
     return 0;

docs/dev/TechnicalDebt.md

@@ -626,6 +626,7 @@ Throughout the project, every function at every stage either **does exactly what
 - PPSA07411 imports declared without parameters, signatures unknown, added without an implementation because the title fails to load without them: [sceSslCreateConnection, sceSslDeleteConnection, sceSslEnableVerifyOption, sceSslConnect, sceSslRead, sceSslWrite](../../core/libs/prx/libSceSsl/Export.cpp) (libSceSsl), [four sce::Json::Value members (setElementAccessFailureHandler, setSpecialFloatHandler, setTypeMismatchHandler, operator bool)](../../core/libs/prx/libSceJson2/Export.cpp) (libSceJson2), [sceConvertKeycodeGetCharacter](../../core/libs/prx/libSceConvertKeycode/Export.cpp) (libSceConvertKeycode) and [sceNpSessionSignalingGetGroupFromSessionId](../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling)
 - [Comparison-sampled R32 float and R16 unorm textures](../../core/libs/prx/libSceAgcDriver/Graphics/src/ShaderResources.cpp) (libSceAgcDriver) whose surface a storage image holds are sampled from a D32_SFLOAT or D16_UNORM image that the GPU refills from the storage image whenever its version moves, because Vulkan compares only depth formats. Only surfaces of at least 1 MiB (`APS5_DEPTH_COPY_MIN_KIB`) that are not 3D take the copy; smaller ones stay CPU snapshots compared against guest memory. With copies of small surfaces, one title hit an intermittent boot-time crash that was not explained.
 - [Null vertex buffer V#](../../core/libs/prx/libSceAgcDriver/Graphics/include/VertexInput.hpp) (libSceAgcDriver) - a V# whose four dwords are all zero is bound to a zeroed vertex buffer of the attribute's size with stride 0, so every component of its attribute reads 0. This follows the V# fields in the [AMD RDNA2 ISA](https://gpuopen.com/download/rdna2-shader-instruction-set-architecture.pdf) (`NUM_RECORDS` 0, `DST_SEL` 0 selects 0), not measured on hardware.
+- PPSA07411 PS VR2 imports declared without parameters, signatures unknown, added without an implementation because the title fails to load without them: [sceHmd2GetDeviceInformationByHandle and sceHmd2Terminate](../../core/libs/prx/libSceHmd2/Export.cpp) (libSceHmd2), [scePadVrControllerSetVibration, scePadVrControllerSetVibrationMode and scePadVrControllerReadCombinedState](../../core/libs/prx/libScePad/Export.cpp) (libScePad) and [sceVrTracker2ResetLocalCoordinate](../../core/libs/prx/libSceVrTracker2/Export.cpp) (libSceVrTracker2)
 - [Descriptor pool recycling](../../core/libs/prx/libSceAgcDriver/Graphics/src/ShaderResources.cpp) avoids individually freed sets: [RADV 26.2.2](https://gitlab.freedesktop.org/mesa/mesa/-/blob/mesa-26.2.2/src/amd/vulkan/radv_descriptor_pool.c) initializes its free-set heap with 32 bytes beyond the backing allocation. An allocation-only RX 6600 test reproduces acceptance of a 4,128-byte set in a 4,096-byte pool; the path without individual frees rejects it. Pools reset after their last set is released. A cached set can retain unused slots in an exhausted pool until eviction; peak gameplay pool memory remains unmeasured.
 - [_fstatfs](../../core/libs/prx/libkernel/File/src/Stdio.cpp) (libkernel) fills the FreeBSD 11 `struct statfs` of the PS5 payload SDK with the host volume that holds the file: block size, transfer size, total, free and available blocks, maximum name length and the read-only, `nosuid` and `noexec` flags (on Windows only read-only, and `f_files` and `f_ffree` are 0, as NTFS has no fixed number of files). The filesystem type number and name, mount paths, owner, filesystem id and I/O counters are left 0 or empty, since they would describe a host mount, not a console one. Sockets and pipes return `EINVAL`, as FreeBSD's `getvnode` does; a Windows descriptor that is neither a file nor a pipe throws. Stremio Plus (PPSA74126) reads the free space before a download and only logs the other fields
 - [fstatvfs](../../core/libs/prx/libSceLibcInternal/FilesystemStatistics.cpp) (libSceLibcInternal) converts `_fstatfs` to the 88-byte `struct statvfs` as FreeBSD 9.2's `sfs2svfs` does (`f_bsize` from the transfer size, `f_frsize` from the block size, `f_favail` equal to `f_ffree`, `f_fsid` 0, `ST_RDONLY` and `ST_NOSUID` only). Differences: `f_namemax` is the `statfs` value, not `fpathconf(_PC_NAME_MAX)`; negative `f_bavail` and `f_ffree` wrap to unsigned without `EOVERFLOW`, as the same-width copy in FreeBSD does; inode counts are 0 on Windows, inherited from `_fstatfs`; a null output returns `EFAULT` after the descriptor is validated, where FreeBSD would fault. Layout and conversion are unverified against the PS5 library (PS5MC imports `fstatvfs` but was not run)