Return the main program's handle, the first one sceKernelGetModuleList
lists and one sceKernelGetModuleInfo accepts. reSOT (PPSA99023) imports
it from libkernel and passes the handle to sceKernelGetModuleInfo to find
its own code segment; before this its eboot failed to load on the
unresolved import.
The PS5 3.20 export lists have it in libkernel as well as libkernel_sys,
and on Windows a libkernel import never reaches libkernel_sys, so the
throwing libkernel_sys stub moves to libkernel as pselect did.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The public header declared the unimplemented placeholder int __tls_get_addr(void). It now declares void* __tls_get_addr(const KernelTlsIndex*), the tls_index pointer the ABI passes, and the implementation and the test use that declaration and type instead of their own.
Resolve a FreeBSD/ELF tls_index {module, offset} the way the relinker's
DTPMOD64 values are laid out: on Windows through the PE _tls_index the
module word points at and the thread's ThreadLocalStoragePointer, on
Linux through glibc's __tls_get_addr.
dlerror returned the last loader error from a 512-byte buffer, so a
longer message was cut off. On macOS the reason dyld gives for a failed
dlopen lists every path it tried, and the message for a module that was
not relinked runs to over 1,000 characters; the end of it, the hint to
relink with --module-dir, was lost, and guest_dynamic_loader failed.
Keep the message in a host thread-local string, through
HostThreadLocal so MinGW does not run its destructor on freed
thread-local storage.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Flags 1 finds any module and flags 2 only non-system ones; other flags return EINVAL instead of throwing, every failure clears the 0x1A8 bytes, and st_size is left 0.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
On Windows, dlopen passed a module that was never relinked to LoadLibraryExW, which raised the
modal Bad Image hard-error dialog and blocked the calling thread until someone answered it. The
load now runs with SEM_FAILCRITICALERRORS set for that thread only, so it fails at once with the
same result as before. Every failed load is reported once per file on stderr with a [module]
prefix; a file that exists with no relinked .guest.prx names the relinker's --module-dir option.
Two unwind queries a title makes went wrong on macOS, so a C++ exception the title would catch ended the process instead: God of War Sons of Sparta (PPSA28997) stops on an IL2CPP exception it normally handles.
- sceKernelGetModuleInfoForUnwind found a relinked image and its PT_GNU_EH_FRAME header but left eh_frame_addr and eh_frame_size at zero, so the title's unwinder found no FDE for its own frame. The tables are now read with EhFrame::ReadTables over the image's load segments, as ModuleInfo does on Linux, and eh_frame_size includes the zero terminator, as on Linux.
- sceSysmoduleGetModuleInfoForUnwind read /proc/self/maps outside Windows and threw on every call on macOS. It now answers from mach_vm_region, with the image path from dladdr, as the Linux branch answers from the mapping.
guest_unwind_module_info now runs on macOS: the test executable carries the __APS5DATA,__meta program headers that the macOS dl_iterate_phdr reads from a relinked image. guest_sysmodule checks the macOS answers against mach_vm_region.
Co-authored-by: mugurc <[email protected]>
PS4 programs load system libraries with sceKernelLoadStartModule and
their console path. The OpenOrbis piglet sample loads
/<sandbox word>/common/lib/libScePigletv2VSH.sprx and
libScePrecompiledShaders.sprx, the sandboxed form of
/system/common/lib/ that sceKernelGetFsSandboxRandomWord names. The path
was opened as a guest file and the load failed with ENOENT.
A path in /system/common/lib/ or in the sandboxed /<word>/common/lib/
whose file name ends in .sprx now loads the host libs/<name>.prx, as
libSceSysmodule does for module IDs. Names with a directory part are
not mapped, so such a path cannot leave libs/.
The cache key of relinked images has no time stamp or check sum, so a
different module of the same size loaded at the same base was served the
old tables. The loader now forgets the image when it frees the module, the
cache has a separate valid flag, and the sysmodule name cache is left out
of this change.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Titles check for a plugin with sceKernelStat before loading it through the engine path. The relinker emits only X.prx.guest.prx, so the check failed and PSNCore started with the raw (0, NULL) arguments. Share the dlopen mapping with sceKernelStat, read-only sceKernelOpen and sceKernelCheckReachability when the original name is absent.
The title-module variants of sceKernelGetModuleList and
sceKernelGetModuleInfo, following shadPS4: the list leaves out system
libraries and the info call answers EPERM for one. A system library is
a loaded .prx image that is not a relinked title module.
NHL 27 (PPSA34063) imports both and fails to load without them.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
sceKernelGetModuleInfoFromAddr found the size of the image's .eh_frame
on every call by walking all of its CIE and FDE records, checking each
against every PT_LOAD header. The guest libc's unwinder calls it for
each frame it unwinds, so a title that unwinds often walked its whole
.eh_frame hundreds of times per second.
The tables read from a .eh_frame_hdr are now kept per header address
and reused while the image stays loaded. The cache is dropped whenever
dl_iterate_phdr reports that an object was unloaded (dlpi_subs), so an
address reused by another image is read again.
guest_module_info queries a module twice and expects the same tables,
then unloads it, loads it again and expects tables of the same size at
the same offset in the new image.
PPSA16827 (Harmony's Odyssey), title screen, over 500 calls per second
counted under gdb, which slows the title: the process used 9269 CPU
samples per 10 s, 53.7% of them in this walk, and 3306 with this change,
3.2% in the lookup. The title still runs at 27 FPS; its frame rate is
limited elsewhere.
sceKernelAvailableFlexibleMemorySize and the flexible maps counted only
explicit flexible mappings, so the full 448 MiB was reported while the
title's executable and modules were loaded. A title that derives its code
and data size from the budget minus the available size got an unsigned
underflow.
The segments of the main executable and of every .guest.prx module that
the title's ELF gives permissions now count, rounded to 16 KiB pages, as
shadPS4 maps every non-system module segment as flexible memory. The
relinker's own blocks and the host system libraries do not count. The
charge ends when a module is unloaded.
Refs #2883
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fnrk5Dazjb2tLooVSpdRQq
Relinks the ELF modules of extra directories under the module parent directory. Modules the executable or another module needs start with the executable; the others are initialized when the title loads them with sceKernelLoadStartModule, with its start arguments (Windows: __aps5_guest_initialize export; Linux: left out of DT_NEEDED).
Squashed onto main by the reviewer (history had a merge commit).
The bundled libc.prx of PPSA21703 calls sceKernelGetModuleInfoFromAddr
with a 0x1A8-byte stack buffer and never sets st_size, so the field holds
whatever was on the stack (983040 in one run) and the call threw. The
console cannot require the field on input. The full size is still
written back. The flags check is unchanged.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
pista