partial implementation of _write function , which is used as debug ouput from lle libc

CMakeLists.txt

@@ -112,6 +112,8 @@ set(LIBRARIES src/core/libraries/library_common.h
               src/core/libraries/libscenet.h
               src/core/libraries/libscenetctl.cpp
               src/core/libraries/libscenetctl.h
+              src/core/libraries/libsceposix.cpp
+              src/core/libraries/libsceposix.h
               src/core/libraries/libscesavedata.cpp
               src/core/libraries/libscesavedata.h
               src/core/libraries/libscessl.cpp

src/core/hle/libraries/libs.cpp

@@ -8,12 +8,14 @@
 #include "core/hle/libraries/libpad/pad.h"
 #include "core/hle/libraries/libs.h"
 #include "core/hle/libraries/libscegnmdriver/libscegnmdriver.h"
+#include "src/core/libraries/libkernel.h"
 #include "src/core/libraries/libsceaudioout.h"
 #include "src/core/libraries/libscecommondialog.h"
 #include "src/core/libraries/libscehttp.h"
 #include "src/core/libraries/libscemsgdialog.h"
 #include "src/core/libraries/libscenet.h"
 #include "src/core/libraries/libscenetctl.h"
+#include "src/core/libraries/libsceposix.h"
 #include "src/core/libraries/libscesavedata.h"
 #include "src/core/libraries/libscessl.h"
 #include "src/core/libraries/libscesysmodule.h"
@@ -43,6 +45,8 @@ void InitHLELibs(Core::Loader::SymbolsResolver* sym) {
     Libraries::SaveData::RegisterlibSceSaveData(sym);
     Libraries::Ssl::RegisterlibSceSsl(sym);
     Libraries::SysModule::RegisterlibSceSysmodule(sym);
+    Libraries::Kernel::Registerlibkernel(sym);
+    Libraries::Posix::Registerlibsceposix(sym);
 }
 
 } // namespace OldLibraries

src/core/libraries/libkernel.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 // Generated By moduleGenerator
+#include <common/assert.h>
 #include "common/logging/log.h"
 #include "error_codes.h"
 #include "libkernel.h"
@@ -458,8 +459,13 @@ int PS4_SYSV_ABI _wait4() {
     return ORBIS_OK;
 }
 
-int PS4_SYSV_ABI _write() {
-    LOG_ERROR(Kernel, "(STUBBED) called");
+s64 PS4_SYSV_ABI _write(int d, const void* buf, std::size_t nbytes) {
+    if (d <= 2) { // stdin,stdout,stderr
+        LOG_INFO(Kernel, "{}", (const char*)buf);
+        return nbytes;
+    }
+    LOG_ERROR(Kernel, "(STUBBED) called d = {} nbytes = {} ", d, nbytes);
+    UNREACHABLE(); // normal write , is it a posix call??
     return ORBIS_OK;
 }
 
@@ -5253,7 +5259,7 @@ int PS4_SYSV_ABI sceCoredumpDebugTriggerCoredump() {
     return ORBIS_OK;
 }
 
-void Registerlibkernel(Core::Loader::SymbolsResolver* sym){
+void Registerlibkernel(Core::Loader::SymbolsResolver* sym) {
     /* LIB_FUNCTION("Fjc4-n1+y2g", "libkernel", 1, "libkernel", 1, 1, __elf_phdr_match_addr);
     LIB_FUNCTION("9BcDykPmo1I", "libkernel", 1, "libkernel", 1, 1, __error);
     LIB_FUNCTION("nSSPVGJLMjE", "libkernel", 1, "libkernel", 1, 1, __freeze);
@@ -5348,9 +5354,9 @@ void Registerlibkernel(Core::Loader::SymbolsResolver* sym){
     LIB_FUNCTION("6xVpy0Fdq+I", "libkernel", 1, "libkernel", 1, 1, _sigprocmask);
     LIB_FUNCTION("9zpLsLESzTs", "libkernel", 1, "libkernel", 1, 1, _sigsuspend);
     LIB_FUNCTION("04AjkP0jO9U", "libkernel", 1, "libkernel", 1, 1, _umtx_op);
-    LIB_FUNCTION("RFlsu7nfopM", "libkernel", 1, "libkernel", 1, 1, _wait4);
+    LIB_FUNCTION("RFlsu7nfopM", "libkernel", 1, "libkernel", 1, 1, _wait4);*/
     LIB_FUNCTION("FxVZqBAA7ks", "libkernel", 1, "libkernel", 1, 1, _write);
-    LIB_FUNCTION("YSHRBRLn2pI", "libkernel", 1, "libkernel", 1, 1, _writev);
+    /* LIB_FUNCTION("YSHRBRLn2pI", "libkernel", 1, "libkernel", 1, 1, _writev);
     LIB_FUNCTION("3e+4Iv7IJ8U", "libkernel", 1, "libkernel", 1, 1, accept);
     LIB_FUNCTION("8vE6Z6VEYyk", "libkernel", 1, "libkernel", 1, 1, access);
     LIB_FUNCTION("3SVaehJvYFk", "libkernel", 1, "libkernel", 1, 1, amd64_set_fsbase);

src/core/libraries/libkernel.h

@@ -97,7 +97,7 @@ int PS4_SYSV_ABI _sigprocmask();
 int PS4_SYSV_ABI _sigsuspend();
 int PS4_SYSV_ABI _umtx_op();
 int PS4_SYSV_ABI _wait4();
-int PS4_SYSV_ABI _write();
+s64 PS4_SYSV_ABI _write(int d, const void* buf, std::size_t nbytes);
 int PS4_SYSV_ABI _writev();
 int PS4_SYSV_ABI accept();
 int PS4_SYSV_ABI access();

src/core/libraries/libsceposix.cpp

@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// Generated By moduleGenerator
+#include "common/logging/log.h"
+#include "error_codes.h"
+#include "libsceposix.h"
+
+namespace Libraries::Posix {
+
+void Registerlibsceposix(Core::Loader::SymbolsResolver* sym) {}
+
+} // namespace Libraries::Posix

src/core/libraries/libsceposix.h

@@ -0,0 +1,10 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "library_common.h"
+
+namespace Libraries::Posix {
+void Registerlibsceposix(Core::Loader::SymbolsResolver* sym);
+} // namespace Libraries::Posix