---- ld/fake-mach.c Sat Sep 6 21:32:56 2003
-+++ ld/fake-mach.c Tue Aug 26 11:40:24 2003
-@@ -0,0 +1,160 @@
-+/** fake-mach.c - A half baked implementation of mach kernel functions using the POSIX UNIX API.
-+*
-+* This was used to port Apple's Darwin linker (ld) to Linux. This allows Mac OS X applications to
-+* be cross complied on Linux. */
-+
-+#include <stdlib.h>
-+#include <assert.h>
-+#include <sys/types.h>
-+#include <sys/uio.h>
-+#include <unistd.h>
-+
-+#include <errno.h>
-+
-+#include <sys/mman.h>
-+
-+// Mach include files for typedefs, return values, etc
-+//~ #include <mach/mach.h>
-+#include <mach/kern_return.h>
-+#include <mach/vm_types.h>
-+#include <mach/mach_types.h>
-+#include <mach/message.h>
-+#include <servers/bootstrap_defs.h>
-+
-+/** The port for the current task. Ignored in this implementation. */
-+mach_port_t mach_task_self_ = 0;
-+
-+/** The bootstrap port. Ignored in this implementation. */
-+mach_port_t bootstrap_port = 0;
-+
-+#include <mach/ppc/ndr_def.h>
-+
-+/** Maps the file descriptor into memory. Free the memory using vm_deallocate. Ignores findspace and offset. */
-+kern_return_t map_fd( int fd, vm_offset_t offset, vm_offset_t *va, boolean_t findspace, vm_size_t size)
-+{
-+ void* space = NULL;
-+
-+ assert( fd > 0 );
-+ assert( offset == 0 );
-+ //~ assert( *va == 0 );
-+ assert( findspace == TRUE );
-+
-+ //~ // Allocate memory
-+ //~ space = malloc( size );
-+ //~ assert( space != NULL );
-+
-+ //~ // Read file into space
-+ //~ bytes = read( fd, space, size );
-+ //~ assert( bytes == size );
-+
-+ space = mmap( (void*) offset, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0 );
-+ // No permission: try to make it read only
-+ if ( space == (void*) -1 && errno == EACCES )
-+ {
-+ space = mmap( (void*) offset, size, PROT_READ, MAP_SHARED, fd, 0 );
-+ }
-+ assert( space != NULL && space != (void*) -1 );
-+
-+ // Copy back the pointer
-+ *va = (vm_offset_t) space;
-+
-+ // Return success
-+ return KERN_SUCCESS;
-+}
-+
-+/** Returns a string appropriate to the error argument given. */
-+char* mach_error_string( int error_value )
-+{
-+ char errorString[] = "Some fake mach error string.";
-+
-+ return errorString;
-+}
-+
-+/** Returns the mach port for the current host. We fake it by returning zero. */
-+mach_port_t mach_host_self( void )
-+{
-+ return 0;
-+}
-+
-+/** Returns the mach port for the current task. We fake it by returning zero. */
-+//~ mach_port_t mach_task_self( void )
-+//~ {
-+ //~ return 0;
-+//~ }
-+
-+/**The function vm_allocate allocates a region of virtual memory, placing it in the specified task's address space. Anywhere must be true, as the memory will be allocated anywhere. */
-+extern kern_return_t vm_allocate( mach_port_t target_task, vm_address_t *address, vm_size_t size, boolean_t anywhere )
-+{
-+ assert( anywhere == TRUE );
-+
-+ // Anonymous memory map
-+ *address = (vm_address_t) mmap( NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0 );
-+ //~ *address = (vm_address_t) malloc( size );
-+ assert( address != (vm_address_t) NULL );
-+
-+ return KERN_SUCCESS;
-+}
-+
-+/**vm_deallocate relinquishes access to a region of a task's address space, causing further access to that memory to fail. This memory must have been allocated with vm_allocate. size is ignored. */
-+kern_return_t vm_deallocate( mach_port_t target_task, vm_address_t address, vm_size_t size )
-+{
-+ int ret = 0;
-+
-+ assert( address != (vm_address_t) NULL );
-+
-+ // Free the memory
-+ ret = munmap( (void*) address, size );
-+ assert( ret == 0 );
-+
-+ //~ free( (void*) address );
-+
-+ return KERN_SUCCESS;
-+}
-+
-+/** The function mach_port_allocate_name creates a new right in the specified task, with a specified name for the new right. In this implementation it does nothing. */
-+kern_return_t mach_port_allocate_name (mach_port_t task, mach_port_right_t right, mach_port_t name)
-+{
-+ return KERN_SUCCESS;
-+}
-+
-+/** The function mach_port_deallocate releases a user reference for a right in task's IPC name space. In this implementation it does nothing. */
-+kern_return_t mach_port_deallocate (mach_port_t task, mach_port_t name)
-+{
-+ return KERN_SUCCESS;
-+}
-+
-+/** host_info returns information about the host. It is not implemented in this implementation. */
-+kern_return_t host_info( host_t host, host_flavor_t flavor, host_info_t host_info_out, mach_msg_type_number_t *host_info_outCnt )
-+{
-+ assert( 0 );
-+ return KERN_FAILURE;
-+}
-+
-+/** vm_msync unimplemented: It does nothing. */
-+kern_return_t vm_msync ( vm_map_t target_task, vm_address_t address, vm_size_t size, vm_sync_t sync_flags )
-+{
-+ //~ assert( address != (vm_address_t) NULL );
-+ //~ int ret = 0;
-+ //~ ret = msync( (void*) address, size, int flags);
-+ //~ assert( 0 );
-+ return KERN_SUCCESS;
-+}
-+
-+/** bootstrap_look_up unimplemented. */
-+kern_return_t bootstrap_look_up( mach_port_t bootstrap_port, name_t service_name, mach_port_t *service_port )
-+{
-+ assert( 0 );
-+ return KERN_FAILURE;
-+}
-+
-+/** mach_msg unimplemented. Send and/or receive a message. If the message operation
-+ * is interrupted, and the user did not request an indication
-+ * of that fact, then restart the appropriate parts of the
-+ * operation silently (trap version does not restart).
-+ */
-+mach_msg_return_t mach_msg( mach_msg_header_t *msg, mach_msg_option_t option, mach_msg_size_t send_size,
-+ mach_msg_size_t rcv_size, mach_port_name_t rcv_name, mach_msg_timeout_t timeout, mach_port_name_t notify)
-+{
-+ //~ assert( 0 );
-+ return KERN_SUCCESS;
-+}
-\ No newline at end of file