syscalls/x64: Add fchdir

External/FEXCore/Source/Interface/HLE/Syscalls/FS.cpp

@@ -23,6 +23,11 @@ namespace FEXCore::HLE {
     SYSCALL_ERRNO();
   }
 
+  uint64_t Fchdir(FEXCore::Core::InternalThreadState *Thread, int fd) {
+    uint64_t Result = ::fchdir(fd);
+    SYSCALL_ERRNO();
+  }
+
   uint64_t Rename(FEXCore::Core::InternalThreadState *Thread, const char *oldpath, const char *newpath) {
     uint64_t Result = ::rename(oldpath, newpath);
     SYSCALL_ERRNO();

External/FEXCore/Source/Interface/HLE/Syscalls/FS.h

@@ -11,6 +11,7 @@ struct InternalThreadState;
 namespace FEXCore::HLE {
   uint64_t Getcwd(FEXCore::Core::InternalThreadState *Thread, char *buf, size_t size);
   uint64_t Chdir(FEXCore::Core::InternalThreadState *Thread, const char *path);
+  uint64_t Fchdir(FEXCore::Core::InternalThreadState *Thread, int fd);
   uint64_t Rename(FEXCore::Core::InternalThreadState *Thread, const char *oldpath, const char *newpath);
   uint64_t Mkdir(FEXCore::Core::InternalThreadState *Thread, const char *pathname, mode_t mode);
   uint64_t Rmdir(FEXCore::Core::InternalThreadState *Thread, const char *pathname);

External/FEXCore/Source/Interface/HLE/x64/Syscalls.cpp

@@ -310,6 +310,9 @@ void x64SyscallHandler::Strace(FEXCore::HLE::SyscallArguments *Args, uint64_t Re
   case SYSCALL_CHDIR:
     LogMan::Msg::D("chdir(\"%s\") = %ld", reinterpret_cast<char const*>(Args->Argument[1]), Ret);
     break;
+  case SYSCALL_CHDIR:
+    LogMan::Msg::D("fchdir(\"%d\") = %ld", reinterpret_cast<int>(Args->Argument[1]), Ret);
+    break;
   case SYSCALL_RENAME:
     LogMan::Msg::D("rename(\"%s\", \"%s\") = %ld", reinterpret_cast<char const*>(Args->Argument[1]), reinterpret_cast<char const*>(Args->Argument[2]), Ret);
     break;
@@ -833,6 +836,7 @@ void x64SyscallHandler::RegisterSyscallHandlers() {
     {SYSCALL_GETDENTS,               cvt(&FEXCore::HLE::Getdents),               3},
     {SYSCALL_GETCWD,                 cvt(&FEXCore::HLE::Getcwd),                 2},
     {SYSCALL_CHDIR,                  cvt(&FEXCore::HLE::Chdir),                  1},
+    {SYSCALL_FCHDIR,                 cvt(&FEXCore::HLE::Fchdir),                 1},
     {SYSCALL_RENAME,                 cvt(&FEXCore::HLE::Rename),                 2},
     {SYSCALL_MKDIR,                  cvt(&FEXCore::HLE::Mkdir),                  2},
     {SYSCALL_RMDIR,                  cvt(&FEXCore::HLE::Rmdir),                  1},

External/FEXCore/Source/Interface/HLE/x64/Syscalls.h

@@ -92,6 +92,7 @@ enum Syscalls {
   SYSCALL_GETDENTS        = 78,  ///< __NR_getdents
   SYSCALL_GETCWD          = 79,  ///< __NR_getcwd
   SYSCALL_CHDIR           = 80,  ///< __NR_chdir
+  SYSCALL_FCHDIR          = 81,  ///< __NR_fchdir
   SYSCALL_RENAME          = 82,  ///< __NR_rename
   SYSCALL_MKDIR           = 83,  ///< __NR_mkdir
   SYSCALL_RMDIR           = 84,  ///< __NR_rmdir