pthread_rwlockattr_settype_np stored any type and returned 0. The console's answer to a type outside 0 to 2 is unknown, and shadPS4 returns EINVAL once the stored type is above 2, so such a type now goes through NotImplemented_nid_no_patch. Types 0 to 2 are stored but not applied, so the debt entry moves to the silent stubs.
The SCE name moves from a libkernel_sys stub to libkernel. Kinds
MutexType::ErrorCheck (1) to MutexType::Adaptive (4) are the mutex
types FreeBSD 11 libthr's pthread_mutexattr_setkind_np stores, and are
set through scePthreadMutexattrSettype, which maps the same values onto
those types. Other kinds and a null or uninitialized attribute throw, as
their console answer is not known.
guest_kernel_sys_pthread_np_kind round-trips kinds 2, 3, 4 and 1
through pthread_mutexattr_gettype, checks that kind 1 makes a second
lock return EDEADLK and kind 2 lets it succeed, and checks the throws
for kinds 0, 5 and -1 (the type unchanged) and for a destroyed or null
attribute.
The POSIX name moves from a libkernel_sys stub to libkernel and stores the
type through its SCE twin scePthreadRwlockattrSettype, converting the
result as the other POSIX rwlock calls do.
guest_kernel_sys_pthread_np_rwlockattr checks types 0, 1 and 2 through
both names, a rwlock built from the attribute, and the throws for a
destroyed or null attribute.
setsockopt reaches a socket created with sceNetSocket through the option setter libSceNet registers, but getsockopt looked the descriptor up only among libkernel's own sockets and failed, so a title could set an option on such a socket through the BSD call and not read it back. libSceNet now registers an option getter with libkernel next to its setter, which answers through sceNetGetsockopt, so SO_RCVTIMEO and SO_SNDTIMEO come back as a struct timeval.
A handler's blocks are now holds kept apart from the mask sigprocmask sets, and released when the handler returns, so a sigprocmask(SIG_BLOCK) from another thread meanwhile survives even for a signal in the handler's sa_mask. sigprocmask reports the holds; SIG_UNBLOCK of a held signal releases its hold and SIG_SETMASK, which longjmp uses, releases them all, while sigsuspend's own restore keeps them.
main now keeps all four words of the guest signal mask. A handler's sa_mask above signal 32 is added too, and SIGKILL and SIGSTOP stay unblocked, as sigprocmask leaves them.
The PS5 3.20 export lists have pselect in libkernel as well as
libkernel_sys, and on Windows a libkernel import never reaches
libkernel_sys. The implementation moves unchanged to
libkernel/Socket/src/Pselect.cpp, beside select.
The PS5 3.20 export lists have ktimer_* in libkernel as well as
libkernel_sys, and on Windows a libkernel import never reaches
libkernel_sys. The implementation moves unchanged to
libkernel/Time/Ktimer.cpp.
soreceive_generic returns 0 for a socket whose receive side is shut and for a
zero-length receive on a connected stream socket (ENOTCONN when it is not
connected), without waiting. Winsock fails the first with WSAESHUTDOWN, which
reached the guest as EPIPE, and blocks the second until data arrives. recv and
recvfrom now answer both themselves.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
On Linux sceKernelGetdirentries copied the host d_type, so a directory under app0 that is a host symlink was listed as a link, and a title that only descends into directory entries skipped it. Inside the app0 tree, report a symlink (or an entry of unknown type) as the type of its target; links elsewhere, and dangling links, stay links.
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]>
Both were missing from libkernel.prx, so a title importing either
(dYv-+If2GPk, RRnSj8h8VR4) failed to load. They take a relative timeout
in microseconds and are scePthreadRwlockTimedrdlock and
scePthreadRwlockTimedwrlock with POSIX error numbers; a zero lock is
initialized as by pthread_rwlock_rdlock. The signature comes from
shadPS4, which registers one function for each NID and its
scePthreadRwlockTimed* twin; FreeBSD 11.4 has no such calls. The throwing
libkernel_sys copies are removed, as an export may live in one library
only. Recorded in the libkernel debt file.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
Follow FreeBSD 11.4 sys_setresuid and sys_setresgid (sys/kern/kern_prot.c):
accept real, effective, and saved user and group IDs for the guest process,
which is assumed to run as root with IDs 0. Setting an ID to 0 or -1 (unchanged)
is accepted without changing credentials and returns 0; any other value throws.
Cover both in guest_credentials test and update libkernel debt documentation.
The PS5 libkernel exports _accept, _bind, _connect, _getdirentries,
_getpeername, _getsockname, _getsockopt, _listen, _recvfrom, _recvmsg,
_sendmsg, _sendto, _setsockopt, _sigaction and _sigsuspend (PS5 3.20
export list, DNNDHH/PS5-3.20_Libs b2a77c0 libkernel.c), and main
exports none of them, so a title importing one fails at startup. Each
now forwards to the export without the underscore, as _close, _ioctl
and _nanosleep already do.
In FreeBSD 11.4 (8c639945a4) these are libc's plain system call
entries: lib/libc/amd64/SYS.h makes bind, getdirentries, getpeername,
getsockname, getsockopt, listen and setsockopt one stub under both
names, and lib/libc/sys/Makefile.inc gives accept, connect, recvfrom,
recvmsg, sendmsg, sendto, sigaction and sigsuspend a separate public
name that goes through libthr's interposing table, which adds the
cancellation points and the sigaction wrapper. The exports without the
underscore have no libthr layer here, so forwarding gives the system
call. docs/dev/debt/libkernel.md records what stays unverified: the
console is not measured, _sigaction shares the handler table of
sigaction, and a null set throws in _sigsuspend as in sigsuspend,
where FreeBSD's system call returns EFAULT.
guest_underscore_entries calls every new export: a loopback TCP
connection, UDP datagrams with scatter, truncation and sender
addresses, a directory listing compared with getdirentries, a SIGTERM
handler set by _sigaction, and a pending SIGUSR1 that _sigsuspend
delivers before returning EINTR with the mask restored. It checks the
errors they pass on (EBADF, EINVAL, EFAULT, ENOPROTOOPT, EOPNOTSUPP)
and that outputs stay untouched on failure.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Measured on firmware 13.60: a start whose rounding to 16 KiB overflows
finds nothing, and of two equal free ranges the lowest is returned.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
ArjenS-LA