src/atomics/OSAtomicFifo.h

//
//  OSAtomicFifo.h
//  libatomics
//
//  Created by Rokhini Prabhu on 4/7/20.
//

#ifndef _OS_ATOMIC_FIFO_QUEUE_
#define _OS_ATOMIC_FIFO_QUEUE_

#if defined(__arm64e__) && __has_feature(ptrauth_calls)
#include <ptrauth.h>

#define COMMPAGE_PFZ_BASE_AUTH_KEY ptrauth_key_process_independent_code
#define COMMPAGE_PFZ_FN_AUTH_KEY ptrauth_key_function_pointer
#define COMMPAGE_PFZ_BASE_DISCRIMINATOR ptrauth_string_discriminator("pfz")

#define COMMPAGE_PFZ_BASE_PTR __ptrauth(COMMPAGE_PFZ_BASE_AUTH_KEY, 1, COMMPAGE_PFZ_BASE_DISCRIMINATOR)

#define SIGN_PFZ_FUNCTION_PTR(ptr) ptrauth_sign_unauthenticated(ptr, COMMPAGE_PFZ_FN_AUTH_KEY, 0)

#else /* defined(__arm64e__) && __has_feature(ptrauth_calls) */

#define COMMPAGE_PFZ_BASE_AUTH_KEY 0
#define COMMPAGE_PFZ_FN_AUTH_KEY 0
#define COMMPAGE_PFZ_BASE_DISCRIMINATOR 0

#define COMMPAGE_PFZ_BASE_PTR

#define SIGN_PFZ_FUNCTION_PTR(ptr) ptr
#endif /* defined(__arm64e__) && __has_feature(ptrauth_calls) */

extern void *COMMPAGE_PFZ_BASE_PTR commpage_pfz_base;

#endif /* _OS_ATOMIC_FIFO_QUEUE_ */
Commit	Line	Data
	1	//
	2	// OSAtomicFifo.h
	3	// libatomics
	4	//
	5	// Created by Rokhini Prabhu on 4/7/20.
	6	//
	7
	8	#ifndef _OS_ATOMIC_FIFO_QUEUE_
	9	#define _OS_ATOMIC_FIFO_QUEUE_
	10
	11	#if defined(__arm64e__) && __has_feature(ptrauth_calls)
	12	#include <ptrauth.h>
	13
	14	#define COMMPAGE_PFZ_BASE_AUTH_KEY ptrauth_key_process_independent_code
	15	#define COMMPAGE_PFZ_FN_AUTH_KEY ptrauth_key_function_pointer
	16	#define COMMPAGE_PFZ_BASE_DISCRIMINATOR ptrauth_string_discriminator("pfz")
	17
	18	#define COMMPAGE_PFZ_BASE_PTR __ptrauth(COMMPAGE_PFZ_BASE_AUTH_KEY, 1, COMMPAGE_PFZ_BASE_DISCRIMINATOR)
	19
	20	#define SIGN_PFZ_FUNCTION_PTR(ptr) ptrauth_sign_unauthenticated(ptr, COMMPAGE_PFZ_FN_AUTH_KEY, 0)
	21
	22	#else /* defined(__arm64e__) && __has_feature(ptrauth_calls) */
	23
	24	#define COMMPAGE_PFZ_BASE_AUTH_KEY 0
	25	#define COMMPAGE_PFZ_FN_AUTH_KEY 0
	26	#define COMMPAGE_PFZ_BASE_DISCRIMINATOR 0
	27
	28	#define COMMPAGE_PFZ_BASE_PTR
	29
	30	#define SIGN_PFZ_FUNCTION_PTR(ptr) ptr
	31	#endif /* defined(__arm64e__) && __has_feature(ptrauth_calls) */
	32
	33	extern void *COMMPAGE_PFZ_BASE_PTR commpage_pfz_base;
	34
	35	#endif /* _OS_ATOMIC_FIFO_QUEUE_ */