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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
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28 #include <mach/mach_types.h>
29 #include <mach/vm_param.h>
31 #include <pexpert/pexpert.h>
32 #include <kern/copyout_shim.h>
34 #if (DEVELOPMENT || DEBUG)
35 #define UNUSED_IN_RELEASE(x)
37 //supress compiler warnings about unused variables
38 #define UNUSED_IN_RELEASE(x) (void)(x)
39 #endif /* (DEVELOPMENT || DEBUG) */
42 #if (DEVELOPMENT || DEBUG)
43 copyout_shim_fn_t copyout_shim_fn
=NULL
;
44 unsigned co_src_flags
=0;
47 kern_return_t
register_copyout_shim(void (*fn
)(const void *,user_addr_t
,vm_size_t
,unsigned co_src
),unsigned types
)
49 #if (DEVELOPMENT || DEBUG)
50 int copyout_shim_enabled
=0;
54 /* unregistration is always allowed */
61 //need to unregister first before registering a new one.
65 if(!PE_parse_boot_argn("enable_copyout_shim",©out_shim_enabled
,sizeof(copyout_shim_enabled
)) || !copyout_shim_enabled
)
75 UNUSED_IN_RELEASE(fn
);
76 UNUSED_IN_RELEASE(types
);
81 void *cos_kernel_unslide(const void *ptr
)
83 #if (DEVELOPMENT || DEBUG)
84 return (void *)(VM_KERNEL_UNSLIDE(ptr
));
86 UNUSED_IN_RELEASE(ptr
);
91 void *cos_kernel_reslide(const void *ptr
)
93 #if (DEVELOPMENT || DEBUG)
94 return (void *)(VM_KERNEL_SLIDE(ptr
));
96 UNUSED_IN_RELEASE(ptr
);