Added bindings to the linux perf_event.h header. The system call perf_event_open is not bound by glibc so I have included a helper

to call this through syscall (in linux unistd) which is in glibc. The bitfields were done via the phobos library (manual mixin inclusion)

Author: maxhaton

mak/COPY

@@ -214,6 +214,7 @@ COPY=\
 	$(IMPDIR)\core\sys\linux\ifaddrs.d \
 	$(IMPDIR)\core\sys\linux\io_uring.d \
 	$(IMPDIR)\core\sys\linux\link.d \
+	$(IMPDIR)\core\sys\linux\perf_event.d \
 	$(IMPDIR)\core\sys\linux\sched.d \
 	$(IMPDIR)\core\sys\linux\stdio.d \
 	$(IMPDIR)\core\sys\linux\string.d \

mak/SRCS

@@ -215,6 +215,7 @@ SRCS=\
 	src\core\sys\linux\ifaddrs.d \
 	src\core\sys\linux\io_uring.d \
 	src\core\sys\linux\link.d \
+	src\core\sys\linux\perf_event.d \
 	src\core\sys\linux\sched.d \
 	src\core\sys\linux\stdio.d \
 	src\core\sys\linux\string.d \