X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/36401178fd6817c043cc00b0c00c7f723e58efae..7e41aa883dd258f888d0470250eead40a53ef1f5:/libsyscall/custom/SYS.h

diff --git a/libsyscall/custom/SYS.h b/libsyscall/custom/SYS.h
index 53039d9e3..46e3735d9 100644
--- a/libsyscall/custom/SYS.h
+++ b/libsyscall/custom/SYS.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 1999-2011 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -48,6 +48,8 @@
 
 #include <sys/syscall.h>
 
+/* Binary compatibility stubs for syscalls that no longer exist */
+
 #ifndef SYS_setquota
 #define SYS_setquota	148
 #endif
@@ -55,60 +57,7 @@
 #define SYS_quota	149
 #endif
 
-#if defined(__ppc__) || defined(__ppc64__)
-
-#include <architecture/ppc/mode_independent_asm.h>
-
-/* From rhapsody kernel mach/ppc/syscall_sw.h */
-#define	kernel_trap_args_0
-#define	kernel_trap_args_1
-#define	kernel_trap_args_2
-#define	kernel_trap_args_3
-#define	kernel_trap_args_4
-#define	kernel_trap_args_5
-#define	kernel_trap_args_6
-#define	kernel_trap_args_7
-#define	kernel_trap_args_8
-/* End of rhapsody kernel mach/ppc/syscall_sw.h */
-
-/*
- * Macros.
- */
-
-#define	SYSCALL(name, nargs)			\
-	.globl	cerror				@\
-    MI_ENTRY_POINT(_##name)     @\
-	kernel_trap_args_##nargs    @\
-	li	r0,SYS_##name			@\
-	sc                          @\
-	b	1f                      @\
-	blr                         @\
-1:	MI_BRANCH_EXTERNAL(cerror)
-
-
-#define	SYSCALL_NONAME(name, nargs)		\
-	.globl	cerror				@\
-	kernel_trap_args_##nargs    @\
-	li	r0,SYS_##name			@\
-	sc                          @\
-	b	1f                      @\
-	b	2f                      @\
-1:	MI_BRANCH_EXTERNAL(cerror)  @\
-2:
-
-
-#define	PSEUDO(pseudo, name, nargs)		\
-    .private_extern  _##pseudo           @\
-    .text                       @\
-    .align  2                   @\
-_##pseudo:                      @\
-	SYSCALL_NONAME(name, nargs)
-
-#define __SYSCALL(pseudo, name, nargs)	\
-    PSEUDO(pseudo, name, nargs)	@\
-    blr
-
-#elif defined(__i386__)
+#if defined(__i386__)
 
 #include <architecture/i386/asm_help.h>
 #include <mach/i386/syscall_sw.h>
@@ -121,58 +70,61 @@ _##pseudo:                      @\
 
 #define UNIX_SYSCALL_SYSENTER		call __sysenter_trap
 #define UNIX_SYSCALL(name, nargs)			\
-	.globl	cerror					;\
+	.globl	tramp_cerror				;\
 LEAF(_##name, 0)					;\
 	movl	$ SYS_##name, %eax			;\
 	UNIX_SYSCALL_SYSENTER				;\
 	jnb	2f					;\
-	BRANCH_EXTERN(cerror)  				;\
+	BRANCH_EXTERN(tramp_cerror)  			;\
 2:
 
 #define UNIX_SYSCALL_INT(name, nargs)			\
-	.globl	cerror					;\
+	.globl	tramp_cerror				;\
 LEAF(_##name, 0)					;\
 	movl	$ SYS_##name, %eax			;\
 	UNIX_SYSCALL_TRAP				;\
 	jnb	2f					;\
-	BRANCH_EXTERN(cerror)  				;\
+	BRANCH_EXTERN(tramp_cerror)  			;\
 2:
 
-#if defined(__SYSCALL_I386_ARG_BYTES) && ((__SYSCALL_I386_ARG_BYTES >= 4) && (__SYSCALL_I386_ARG_BYTES <= 20))
-#define UNIX_SYSCALL_NONAME(name, nargs)			\
-	movl	$(SYS_##name | (__SYSCALL_I386_ARG_BYTES << I386_SYSCALL_ARG_BYTES_SHIFT)), %eax		;\
+#if defined(__SYSCALL_32BIT_ARG_BYTES) && ((__SYSCALL_32BIT_ARG_BYTES >= 4) && (__SYSCALL_32BIT_ARG_BYTES <= 20))
+#define UNIX_SYSCALL_NONAME(name, nargs, cerror)			\
+	movl	$(SYS_##name | (__SYSCALL_32BIT_ARG_BYTES << I386_SYSCALL_ARG_BYTES_SHIFT)), %eax		;\
 	UNIX_SYSCALL_SYSENTER					;\
 	jnb	2f						;\
-	BRANCH_EXTERN(cerror)					;\
+	BRANCH_EXTERN(tramp_##cerror)				;\
 2:
-#else /* __SYSCALL_I386_ARG_BYTES < 4 || > 20 */
-#define UNIX_SYSCALL_NONAME(name, nargs)		\
-	.globl	cerror					;\
+#else /* __SYSCALL_32BIT_ARG_BYTES < 4 || > 20 */
+#define UNIX_SYSCALL_NONAME(name, nargs, cerror)	\
 	movl	$ SYS_##name, %eax			;\
 	UNIX_SYSCALL_SYSENTER				;\
 	jnb	2f					;\
-	BRANCH_EXTERN(cerror)				;\
+	BRANCH_EXTERN(tramp_##cerror)			;\
 2:
 #endif
 
 #define UNIX_SYSCALL_INT_NONAME(name, nargs)		\
-	.globl	cerror					;\
+	.globl	tramp_cerror_nocancel			;\
 	movl	$ SYS_##name, %eax			;\
 	UNIX_SYSCALL_TRAP				;\
 	jnb	2f					;\
-	BRANCH_EXTERN(cerror)  				;\
+	BRANCH_EXTERN(tramp_cerror_nocancel) 		;\
 2:
 
-#define PSEUDO(pseudo, name, nargs)			\
-LEAF(_##pseudo, 0)					;\
-	UNIX_SYSCALL_NONAME(name, nargs)
+#define PSEUDO(pseudo, name, nargs, cerror)	\
+LEAF(pseudo, 0)					;\
+	UNIX_SYSCALL_NONAME(name, nargs, cerror)
 
-#define PSEUDO_INT(pseudo, name, nargs)			\
-LEAF(_##pseudo, 0)					;\
+#define PSEUDO_INT(pseudo, name, nargs)		\
+LEAF(pseudo, 0)					;\
 	UNIX_SYSCALL_INT_NONAME(name, nargs)
 
+#define __SYSCALL2(pseudo, name, nargs, cerror)			\
+	PSEUDO(pseudo, name, nargs, cerror)			;\
+	ret
+
 #define __SYSCALL(pseudo, name, nargs)			\
-	PSEUDO(pseudo, name, nargs)			;\
+	PSEUDO(pseudo, name, nargs, cerror)		;\
 	ret
 
 #define __SYSCALL_INT(pseudo, name, nargs)		\
@@ -188,31 +140,38 @@ LEAF(_##pseudo, 0)					;\
 	movq	%rcx, %r10		;\
 	syscall
 
-#define UNIX_SYSCALL(name, nargs)			\
-	.globl	cerror					;\
-LEAF(_##name, 0)					;\
-	movl	$ SYSCALL_CONSTRUCT_UNIX(SYS_##name), %eax	;\
-	UNIX_SYSCALL_SYSCALL				;\
-	jnb	2f					;\
-	BRANCH_EXTERN(cerror)  				;\
+#define UNIX_SYSCALL(name, nargs)						 \
+	.globl	cerror								;\
+LEAF(_##name, 0)								;\
+	movl	$ SYSCALL_CONSTRUCT_UNIX(SYS_##name), %eax			;\
+	UNIX_SYSCALL_SYSCALL							;\
+	jnb		2f							;\
+	movq	%rax, %rdi							;\
+	BRANCH_EXTERN(_cerror)							;\
 2:
 
-#define UNIX_SYSCALL_NONAME(name, nargs)		\
-	.globl	cerror					;\
-	movl	$ SYSCALL_CONSTRUCT_UNIX(SYS_##name), %eax	;\
-	UNIX_SYSCALL_SYSCALL				;\
-	jnb	2f					;\
-	BRANCH_EXTERN(cerror)  				;\
+#define UNIX_SYSCALL_NONAME(name, nargs, cerror)		 \
+	.globl	cerror								;\
+	movl	$ SYSCALL_CONSTRUCT_UNIX(SYS_##name), %eax			;\
+	UNIX_SYSCALL_SYSCALL							;\
+	jnb		2f							;\
+	movq	%rax, %rdi							;\
+	BRANCH_EXTERN(_##cerror)						;\
 2:
 
-#define PSEUDO(pseudo, name, nargs)			\
-LEAF(_##pseudo, 0)					;\
-	UNIX_SYSCALL_NONAME(name, nargs)
+#define PSEUDO(pseudo, name, nargs, cerror)			\
+LEAF(pseudo, 0)					;\
+	UNIX_SYSCALL_NONAME(name, nargs, cerror)
+
+#define __SYSCALL2(pseudo, name, nargs, cerror) \
+	PSEUDO(pseudo, name, nargs, cerror)			;\
+	ret
 
 #define __SYSCALL(pseudo, name, nargs)			\
-	PSEUDO(pseudo, name, nargs)			;\
+	PSEUDO(pseudo, name, nargs, cerror)			;\
 	ret
 
 #else
 #error Unsupported architecture
 #endif
+