feat(libs): declare sceGameLiveStreamingEnableLiveStreaming and sceKernelPrintBacktraceWithModuleInfo

PS4 titles import both and do not load without them; every call throws and
the debt files list them.

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

core/libs/prx/libSceGameLiveStreaming/Export.cpp

@@ -40,4 +40,9 @@ int APS5_VABI sceGameLiveStreamingGetProgramInfo() {
     return 0;
 }
 
+int APS5_VABI sceGameLiveStreamingEnableLiveStreaming(void) {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 }

core/libs/prx/libkernel/Unimplemented.cpp

@@ -121,4 +121,10 @@ int APS5_VABI sceKernelUnknown19(void) {
     NotImplemented_nid_no_patch("uDGXwUKqi8s");
     return 0;
 }
+
+int APS5_VABI sceKernelPrintBacktraceWithModuleInfo(void) {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 }

docs/dev/debt/libSceGameLiveStreaming.md

@@ -2,4 +2,5 @@
 
 ### Unknown function info
 
+- [sceGameLiveStreamingEnableLiveStreaming](../../../core/libs/prx/libSceGameLiveStreaming/Export.cpp) (libSceGameLiveStreaming) - imported by PS4 titles, which do not load without it, and added without an implementation: declared without parameters, every call throws
 - [sceGameLiveStreamingGetCurrentStatus2](../../../core/libs/prx/libSceGameLiveStreaming/Export.cpp) (libSceGameLiveStreaming) - the status layout (user id, on-air flag, spectator, text and command message counts, broadcast resolution, 48 reserved bytes) is taken from shadPS4's `OrbisGameLiveStreamingStatus2`; the call reports that no stream is on air, with an invalid user id

docs/dev/debt/libkernel.md

@@ -107,6 +107,7 @@
 - [sceKernelIsThreadSanitizerEnabled](../../../core/libs/prx/libkernel/System/src/Sanitizer.cpp) (libkernel, NID `LzoM-wVLJDE`) - no source gives the signature; `int (void)` is assumed from `sceKernelIsAddressSanitizerEnabled` and from PPSA23226's bundled `libSceJobManager_nosubmission.prx`, which passes no arguments and tests only the 32-bit result
 - [getdtablesize](../../../core/libs/prx/libkernel/System/src/Process.cpp) (libkernel) - returns the smaller of the `RLIMIT_NOFILE` soft limit of `getrlimit` and the host's `getdtablesize()`, capped at `INT_MAX`: FreeBSD returns the smaller of the `RLIMIT_NOFILE` soft limit and `maxfilesperproc` ([`sys_getdtablesize`](https://github.com/freebsd/freebsd-src/blob/8c639945a44588f6cfdddfb057bb5aad88735da0/sys/kern/kern_descrip.c#L338-L355)), and the host call supplies that bound on macOS, where the soft limit alone is not one (`setrlimit` accepts soft limits above `maxfilesperproc`, `RLIM_INFINITY` included); `maxfilesperproc` is not measured on the console. The guest limit is the host's soft limit, raised to the hard limit when libkernel loads only on Linux: `core/libs/prx/libkernel/File/src/OpenFileLimit.cpp` is `__linux__`-only, so on macOS the guest gets whatever soft limit the host process inherited. VLC (PPSA85300) imports it for a `closefrom` loop in the child of its spawn helper ([libc_stubs.c](https://github.com/ZiZc3/VLC/blob/d46be6a68f4244466b041c2dc1b640915ac1a983/ps5/compat/libc_stubs.c#L66-L72)), which never runs because its `fork` fails with `ENOSYS`
 - [close, sceKernelClose](../../../core/libs/prx/libkernel/File/src/HostStreams.cpp) (libkernel) - descriptors 0 to 2 that are open when libkernel loads belong to the host process: closing one fails with `EBADF` and leaves it open. The console's result is unknown. PPSA21703 calls `sceKernelClose(0)` repeatedly; closing the host stream let the host C runtime give descriptor 0 to the next file opened, which the next call then closed
+- [sceKernelPrintBacktraceWithModuleInfo](../../../core/libs/prx/libkernel/Unimplemented.cpp) (libkernel) - imported by PS4 titles, which do not load without it, and added without an implementation: declared without parameters, every call throws
 
 ### Functional