Differential D36701 Diff 110969 sys/arm64/include/atomic.h

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sys/arm64/include/atomic.h

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	*/			*/
	#define dsb(opt) __asm __volatile("dsb " __STRING(opt) : : : "memory")			#define dsb(opt) __asm __volatile("dsb " __STRING(opt) : : : "memory")
	#define dmb(opt) __asm __volatile("dmb " __STRING(opt) : : : "memory")			#define dmb(opt) __asm __volatile("dmb " __STRING(opt) : : : "memory")

	#define mb() dmb(sy) /* Full system memory barrier all */			#define mb() dmb(sy) /* Full system memory barrier all */
	#define wmb() dmb(st) /* Full system memory barrier store */			#define wmb() dmb(st) /* Full system memory barrier store */
	#define rmb() dmb(ld) /* Full system memory barrier load */			#define rmb() dmb(ld) /* Full system memory barrier load */

				#ifdef _KERNEL
				extern bool lse_supported;
				andrewUnsubmitted Done Inline Actions Why is this needed? andrew: Why is this needed?
				kevansAuthorUnsubmitted Done Inline Actions We still want to build sys/arm64/arm64/support_ifunc.c, but otherwise the symbol's only declared here in the !sanitizer branch below. kevans: We still want to build sys/arm64/arm64/support_ifunc.c, but otherwise the symbol's only…
				#endif
				markjUnsubmitted Not Done Inline Actions A problem with this is that we rely on the sys/types.h include in atomic_common.h/atomic_san.h to provide a typedef for bool. This appears to break at least linux_mmap.c. One workaround is to define it as a `_Bool` instead. markj: A problem with this is that we rely on the sys/types.h include in atomic_common.h/atomic_san.h…
				kevansAuthorUnsubmitted Done Inline Actions In the interest of not adding any arch-specific header pollution, I've staged the change to `_Bool` locally for push or to roll into another revision. kevans: In the interest of not adding any arch-specific header pollution, I've staged the change to…

	#if defined(SAN_NEEDS_INTERCEPTORS) && !defined(SAN_RUNTIME)			#if defined(SAN_NEEDS_INTERCEPTORS) && !defined(SAN_RUNTIME)
	#include <sys/atomic_san.h>			#include <sys/atomic_san.h>
	#else			#else

	#include <sys/atomic_common.h>			#include <sys/atomic_common.h>

	#ifdef _KERNEL			#ifdef _KERNEL
	extern bool lse_supported;

	#ifdef LSE_ATOMICS			#ifdef LSE_ATOMICS
	#define _ATOMIC_LSE_SUPPORTED 1			#define _ATOMIC_LSE_SUPPORTED 1
	#else			#else
	#define _ATOMIC_LSE_SUPPORTED lse_supported			#define _ATOMIC_LSE_SUPPORTED lse_supported
	#endif			#endif
	#else			#else
	#define _ATOMIC_LSE_SUPPORTED 0			#define _ATOMIC_LSE_SUPPORTED 0
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