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https://github.com/mihawk-99/PS5_RetroArch.git
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MihawkandClaude Opus 5.5
95f8538c10
tools/build-lrps2.sh builds libretro's PCSX2 core from my fork's pinned revision with patches/lrps2/ps5-port.patch (the fork's ps5-port branch), checks its ABI, stamps it and stages it in the title. LRPS2_DEV=1 builds the fork's working tree. Its toolchain file and libc shims live in tooling/lrps2; the title exports dirfd for it (ps5_dirfd). On the console the BIOS boots on the software renderer and runs 150 s with no crash and full-speed audio, and the Vulkan renderer creates its 1.1 device (docs/PHASE_LOG.md, docs/LRPS2_PORT.md). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/*
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* PS5 RetroArch - libc entry points LRPS2's core calls and the console lacks.
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*
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* Copyright (C) 2026 Mihawk
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* Each function here is referenced by LRPS2 or by a library it vendors, and
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* cannot come from the title's import table: the payload SDK exports no symbol
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* for it, or its stub lists one the console does not provide at runtime. They
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* are defined in the core so the reference resolves where it is made. The
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* pattern is the Dolphin port's (tooling/dolphin/ps5-libc-shims.cpp).
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*
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* A real implementation, because the core depends on the answer:
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*
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* atexit glslang registers its finalizer. The process-wide list would
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* call into the core after RetroArch unmapped it, so it joins
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* this core's own destructor registry
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* (tooling/native/core_cxx_runtime.cpp), which the native loader
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* runs before unmapping.
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*
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* clock_nanosleep
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* Granite's timer (paraLLEl-GS) sleeps to an absolute deadline.
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* The console has clock_gettime and nanosleep, so the deadline is
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* turned into the interval still to go.
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*
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* Refusals the callers already handle, for features a console core never uses:
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*
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* getaddrinfo, freeaddrinfo DEV9's network adapter (name lookups)
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* if_nameindex, if_freenameindex DEV9's adapter enumeration
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*/
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#include <cerrno>
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#include <cstddef>
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#include <ctime>
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#include <net/if.h>
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#include <netdb.h>
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extern "C"
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{
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int __cxa_atexit(void (*callback)(void *), void *argument, void *dso);
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extern void *__dso_handle;
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}
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namespace
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{
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void run_atexit(void *function)
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{
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reinterpret_cast<void (*)()>(function)();
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}
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} // namespace
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extern "C"
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{
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int atexit(void (*function)())
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{
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return __cxa_atexit(run_atexit, reinterpret_cast<void *>(function), &__dso_handle);
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}
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int clock_nanosleep(clockid_t clock, int flags, const struct timespec *request,
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struct timespec *remaining)
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{
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struct timespec wait = *request;
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if (flags & TIMER_ABSTIME)
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{
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struct timespec now;
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if (clock_gettime(clock, &now) != 0)
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return errno;
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const long long left = (static_cast<long long>(request->tv_sec) - now.tv_sec) * 1000000000LL +
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(request->tv_nsec - now.tv_nsec);
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if (left <= 0)
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return 0;
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wait.tv_sec = static_cast<time_t>(left / 1000000000LL);
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wait.tv_nsec = static_cast<long>(left % 1000000000LL);
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/* An absolute sleep reports no remainder: the deadline is unchanged. */
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remaining = nullptr;
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}
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return nanosleep(&wait, remaining) == 0 ? 0 : errno;
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}
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int getaddrinfo(const char *, const char *, const struct addrinfo *, struct addrinfo **result)
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{
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if (result)
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*result = nullptr;
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return EAI_FAIL;
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}
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void freeaddrinfo(struct addrinfo *)
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{
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}
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struct if_nameindex *if_nameindex()
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{
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errno = ENOSYS;
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return nullptr;
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}
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void if_freenameindex(struct if_nameindex *)
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{
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}
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}
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