[wasm] Skeleton for wasm specific implementations of a bunch of OS st…

…uff.

This commit is incomplete because we need to implement / investigate all missing functions that I added as comments in w32process-wasm.c.
Savings for a release build are of the order of 100kb for interp-release.

The icalls should be all implemented as throwing PSNE.

The non-icall functions require some investigation.

mono/metadata/Makefile.am

@@ -40,6 +40,26 @@ export HOST_CC
 AM_CFLAGS = -O
 else
 
+if HOST_WASM
+assembliesdir = $(exec_prefix)/lib
+confdir = $(sysconfdir)
+wasm_sources = \
+	console-wasm.c \
+	w32mutex-wasm.c \
+	w32semaphore-wasm.c \
+	w32event-wasm.c \
+	w32process-wasm.c \
+	w32process-wasm-internals.h \
+	w32socket-wasm.c \
+	w32file-wasm.c \
+	w32file-wasm-glob.c \
+	w32file-wasm-glob.h \
+	w32error-wasm.c
+
+platform_sources = $(wasm_sources)
+
+else
+
 assembliesdir = $(exec_prefix)/lib
 confdir = $(sysconfdir)
 unix_sources = \
@@ -61,6 +81,7 @@ unix_sources = \
 
 platform_sources = $(unix_sources)
 endif
+endif
 
 glib_libs = $(top_builddir)/mono/eglib/libeglib.la
 

mono/metadata/w32process-wasm.c

@@ -0,0 +1,115 @@
+/*warning: unresolved symbol: mono_console_handle_async_ops
+warning: unresolved symbol: mono_console_init
+warning: unresolved symbol: mono_w32error_get_last
+warning: unresolved symbol: mono_w32event_close
+warning: unresolved symbol: mono_w32event_create
+warning: unresolved symbol: mono_w32event_init
+warning: unresolved symbol: mono_w32event_set
+warning: unresolved symbol: mono_w32file_cleanup
+warning: unresolved symbol: mono_w32file_close
+warning: unresolved symbol: mono_w32file_copy
+warning: unresolved symbol: mono_w32file_create
+warning: unresolved symbol: mono_w32file_create_directory
+warning: unresolved symbol: mono_w32file_create_pipe
+warning: unresolved symbol: mono_w32file_delete
+warning: unresolved symbol: mono_w32file_find_close
+warning: unresolved symbol: mono_w32file_find_first
+warning: unresolved symbol: mono_w32file_find_next
+warning: unresolved symbol: mono_w32file_flush
+warning: unresolved symbol: mono_w32file_get_attributes
+warning: unresolved symbol: mono_w32file_get_attributes_ex
+warning: unresolved symbol: mono_w32file_get_console_error
+warning: unresolved symbol: mono_w32file_get_console_input
+warning: unresolved symbol: mono_w32file_get_console_output
+warning: unresolved symbol: mono_w32file_get_cwd
+warning: unresolved symbol: mono_w32file_get_disk_free_space
+warning: unresolved symbol: mono_w32file_get_drive_type
+warning: unresolved symbol: mono_w32file_get_file_size
+warning: unresolved symbol: mono_w32file_get_logical_drive
+warning: unresolved symbol: mono_w32file_get_type
+warning: unresolved symbol: mono_w32file_init
+warning: unresolved symbol: mono_w32file_lock
+warning: unresolved symbol: mono_w32file_move
+warning: unresolved symbol: mono_w32file_read
+warning: unresolved symbol: mono_w32file_remove_directory
+warning: unresolved symbol: mono_w32file_replace
+warning: unresolved symbol: mono_w32file_seek
+warning: unresolved symbol: mono_w32file_set_attributes
+warning: unresolved symbol: mono_w32file_set_cwd
+warning: unresolved symbol: mono_w32file_set_times
+warning: unresolved symbol: mono_w32file_truncate
+warning: unresolved symbol: mono_w32file_unlock
+warning: unresolved symbol: mono_w32file_write
+warning: unresolved symbol: mono_w32mutex_abandon
+warning: unresolved symbol: mono_w32mutex_init
+warning: unresolved symbol: mono_w32process_cleanup
+warning: unresolved symbol: mono_w32process_get_fileversion_info
+warning: unresolved symbol: mono_w32process_get_pid
+warning: unresolved symbol: mono_w32process_init
+warning: unresolved symbol: mono_w32process_module_get_filename
+warning: unresolved symbol: mono_w32process_module_get_information
+warning: unresolved symbol: mono_w32process_module_get_name
+warning: unresolved symbol: mono_w32process_signal_finished
+warning: unresolved symbol: mono_w32process_try_get_modules
+warning: unresolved symbol: mono_w32process_ver_language_name
+warning: unresolved symbol: mono_w32process_ver_query_value
+warning: unresolved symbol: mono_w32semaphore_init
+warning: unresolved symbol: mono_w32socket_accept
+warning: unresolved symbol: mono_w32socket_bind
+warning: unresolved symbol: mono_w32socket_cleanup
+warning: unresolved symbol: mono_w32socket_close
+warning: unresolved symbol: mono_w32socket_connect
+warning: unresolved symbol: mono_w32socket_convert_error
+warning: unresolved symbol: mono_w32socket_disconnect
+warning: unresolved symbol: mono_w32socket_duplicate
+warning: unresolved symbol: mono_w32socket_get_available
+warning: unresolved symbol: mono_w32socket_get_last_error
+warning: unresolved symbol: mono_w32socket_getpeername
+warning: unresolved symbol: mono_w32socket_getsockname
+warning: unresolved symbol: mono_w32socket_getsockopt
+warning: unresolved symbol: mono_w32socket_initialize
+warning: unresolved symbol: mono_w32socket_ioctl
+warning: unresolved symbol: mono_w32socket_listen
+warning: unresolved symbol: mono_w32socket_recv
+warning: unresolved symbol: mono_w32socket_recvbuffers
+warning: unresolved symbol: mono_w32socket_recvfrom
+warning: unresolved symbol: mono_w32socket_send
+warning: unresolved symbol: mono_w32socket_sendbuffers
+warning: unresolved symbol: mono_w32socket_sendto
+warning: unresolved symbol: mono_w32socket_set_blocking
+warning: unresolved symbol: mono_w32socket_setsockopt
+warning: unresolved symbol: mono_w32socket_shutdown
+warning: unresolved symbol: mono_w32socket_socket
+warning: unresolved symbol: mono_w32socket_transmit_file
+warning: unresolved symbol: putchar
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_CloseProcess
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_GetCurrentProcess
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_GetExitCodeProcess
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_GetPriorityClass
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_GetProcessTimes
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_GetProcessWorkingSetSize
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_SetPriorityClass
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_SetProcessWorkingSetSize
+warning: unresolved symbol: ves_icall_Microsoft_Win32_NativeMethods_TerminateProcess
+warning: unresolved symbol: ves_icall_System_ConsoleDriver_InternalKeyAvailable
+warning: unresolved symbol: ves_icall_System_ConsoleDriver_Isatty
+warning: unresolved symbol: ves_icall_System_ConsoleDriver_SetBreak
+warning: unresolved symbol: ves_icall_System_ConsoleDriver_SetEcho
+warning: unresolved symbol: ves_icall_System_ConsoleDriver_TtySetup
+warning: unresolved symbol: ves_icall_System_Diagnostics_Process_CreateProcess_internal
+warning: unresolved symbol: ves_icall_System_Diagnostics_Process_GetProcess_internal
+warning: unresolved symbol: ves_icall_System_Diagnostics_Process_GetProcesses_internal
+warning: unresolved symbol: ves_icall_System_Diagnostics_Process_ShellExecuteEx_internal
+warning: unresolved symbol: ves_icall_System_Net_Sockets_Socket_SupportPortReuse
+warning: unresolved symbol: ves_icall_System_Threading_Events_CloseEvent_internal
+warning: unresolved symbol: ves_icall_System_Threading_Events_CreateEvent_internal
+warning: unresolved symbol: ves_icall_System_Threading_Events_OpenEvent_internal
+warning: unresolved symbol: ves_icall_System_Threading_Events_ResetEvent_internal
+warning: unresolved symbol: ves_icall_System_Threading_Events_SetEvent_internal
+warning: unresolved symbol: ves_icall_System_Threading_Mutex_CreateMutex_internal
+warning: unresolved symbol: ves_icall_System_Threading_Mutex_OpenMutex_internal
+warning: unresolved symbol: ves_icall_System_Threading_Mutex_ReleaseMutex_internal
+warning: unresolved symbol: ves_icall_System_Threading_Semaphore_CreateSemaphore_internal
+warning: unresolved symbol: ves_icall_System_Threading_Semaphore_OpenSemaphore_internal
+warning: unresolved symbol: ves_icall_System_Threading_Semaphore_ReleaseSemaphore_internal
+*/