/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the
- * License may not be used to create, or enable the creation or
- * redistribution of, unlawful or unlicensed copies of an Apple operating
- * system, or to circumvent, violate, or enable the circumvention or
- * violation of, any terms of an Apple operating system software license
- * agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#include <architecture/i386/asm_help.h>
-#if defined(__i386__)
-/*
- * Software interrupt codes for 32-bit system call entry:
- */
-#define UNIX_INT 0x80
-#define MACH_INT 0x81
-#define MACHDEP_INT 0x82
-#define DIAG_INT 0x83
-
-#ifndef KERNEL
-/*
- * Syscall entry macros for use in libc:
- * [Note that the nop padding is temporary during 4/4 transition.]
- */
-#define SYSENTER_PAD nop;nop;
-#define SYSCALL_PAD nop;nop;nop;nop;nop;
-#define UNIX_SYSCALL_TRAP \
- SYSCALL_PAD \
- int $(UNIX_INT)
-#define MACHDEP_SYSCALL_TRAP \
- SYSCALL_PAD \
- int $(MACHDEP_INT)
-
-/*
- * Macro to generate Mach call stubs in libc:
- */
-#define kernel_trap(trap_name,trap_number,number_args) \
-LEAF(_##trap_name,0) ;\
- movl $##trap_number,%eax ;\
- int $(MACH_INT) ;\
-END(_##trap_name)
-
-#endif
-#endif /* defined(__i386__) */
-
-#if defined(__x86_64__)
+#define MACHCALLSEL $0x07
-#ifndef KERNEL
-
-#define UNIX_SYSCALL_TRAP \
- syscall
-#define MACHDEP_SYSCALL_TRAP \
- syscall
-
-/*
- * Macro to generate Mach call stubs in Libc.
- * Existing calls use negative numbers for Mach traps, so
- * until we change those and change the 32-bit kernel_trap
- * macro above, we negate those numbers here for the 64-bit
- * code path.
- */
#define kernel_trap(trap_name,trap_number,number_args) \
LEAF(_##trap_name,0) ;\
- movq %rcx, %r10 ;\
- movl $ SYSCALL_CONSTRUCT_MACH(-##trap_number), %eax ;\
- syscall ;\
+ movl $##trap_number,%eax ;\
+ lcall MACHCALLSEL, $0 ;\
END(_##trap_name)
-#endif
-#endif /* defined(__x86_64__) */
-
-/*
- * Syscall classes for 64-bit system call entry.
- * For 64-bit users, the 32-bit syscall number is partitioned
- * with the high-order bits representing the class and low-order
- * bits being the syscall number within that class.
- * The high-order 32-bits of the 64-bit syscall number are unused.
- * All system classes enter the kernel via the syscall instruction.
- *
- * These are not #ifdef'd for x86-64 because they might be used for
- * 32-bit someday and so the 64-bit comm page in a 32-bit kernel
- * can use them.
- */
-#define SYSCALL_CLASS_SHIFT 24
-#define SYSCALL_CLASS_MASK (0xFF << SYSCALL_CLASS_SHIFT)
-#define SYSCALL_NUMBER_MASK (~SYSCALL_CLASS_MASK)
-
-#define SYSCALL_CLASS_NONE 0 /* Invalid */
-#define SYSCALL_CLASS_MACH 1 /* Mach */
-#define SYSCALL_CLASS_UNIX 2 /* Unix/BSD */
-#define SYSCALL_CLASS_MDEP 3 /* Machine-dependent */
-#define SYSCALL_CLASS_DIAG 4 /* Diagnostics */
-
-/* Macros to simpllfy constructing syscall numbers. */
-#define SYSCALL_CONSTRUCT_MACH(syscall_number) \
- ((SYSCALL_CLASS_MACH << SYSCALL_CLASS_SHIFT) | \
- (SYSCALL_NUMBER_MASK & (syscall_number)))
-#define SYSCALL_CONSTRUCT_UNIX(syscall_number) \
- ((SYSCALL_CLASS_UNIX << SYSCALL_CLASS_SHIFT) | \
- (SYSCALL_NUMBER_MASK & (syscall_number)))
-#define SYSCALL_CONSTRUCT_MDEP(syscall_number) \
- ((SYSCALL_CLASS_MDEP << SYSCALL_CLASS_SHIFT) | \
- (SYSCALL_NUMBER_MASK & (syscall_number)))
-#define SYSCALL_CONSTRUCT_DIAG(syscall_number) \
- ((SYSCALL_CLASS_DIAG << SYSCALL_CLASS_SHIFT) | \
- (SYSCALL_NUMBER_MASK & (syscall_number)))
-
#endif /* _MACH_I386_SYSCALL_SW_H_ */
#endif /* PRIVATE */
projects / apple / xnu.git / blobdiff