disable temporary unsupported features on aarch64 (#96)

* remove OpenMP Runtime, move runtime to an own package

* remove uneeded dependencies to rdtsc, disable rdtsc based benchmarks on aarch64

* disable temporary go and xray applications on aarch64

CMakeLists.txt

@@ -173,7 +173,9 @@ endif()
 ## Tests and benchmarks
 build_external(tests ${HERMIT_ROOT}/usr/tests hermit)
 build_external(benchmarks ${HERMIT_ROOT}/usr/benchmarks hermit)
+if("${TARGET_ARCH}" STREQUAL "x86_64-hermit")
 build_external(openmpbench ${HERMIT_ROOT}/usr/openmpbench hermit)
+endif()
 
 ## relocate the local prefix to our install destination
 install(DIRECTORY ${LOCAL_PREFIX_DIR}/

usr/benchmarks/CMakeLists.txt

@@ -3,6 +3,7 @@ include(../../cmake/HermitCore-Application.cmake)
 
 project(hermit_benchmarks C)
 
+if("${TARGET_ARCH}" STREQUAL "x86_64-hermit")
 add_executable(basic basic.c)
 target_link_libraries(basic pthread)
 
@@ -12,6 +13,7 @@ add_executable(netio netio.c)
 
 add_executable(RCCE_pingpong RCCE_pingpong.c)
 target_link_libraries(RCCE_pingpong ircce)
+endif()
 
 add_executable(stream stream.c)
 target_compile_options(stream PRIVATE -fopenmp)

usr/benchmarks/stream.c

@@ -416,40 +416,14 @@ checktick()
 #include <time.h>
 #include <sys/time.h>
 
-#ifdef __hermit__
-extern unsigned int get_cpufreq();
-static unsigned long long start_tsc;
-
-inline static unsigned long long rdtsc(void)
-{
-	unsigned long lo, hi;
-	asm volatile ("rdtsc" : "=a"(lo), "=d"(hi) :: "memory");
-	return ((unsigned long long) hi << 32ULL | (unsigned long long) lo);
-}
-
-__attribute__((constructor)) static void timer_init()
-{
-	start_tsc = rdtsc();
-}
-#endif
-
 double mysecond()
 {
-#ifndef __hermit__
         struct timeval tp;
         struct timezone tzp;
         int i;
 
         i = gettimeofday(&tp,&tzp);
         return ( (double) tp.tv_sec + (double) tp.tv_usec * 1.e-6 );
-#else
-	double ret;
-
-	ret = ((double) (rdtsc() - start_tsc)) / ((double) get_cpufreq() * 1000000.0);
-	//printf("CPU frequency: %d MHz\n", get_cpufreq());
-
-	return ret;
-#endif
 }
 
 #ifndef abs

usr/tests/CMakeLists.txt

@@ -9,7 +9,9 @@ add_executable(jacobi jacobi.c)
 add_executable(argv_envp argv_envp.c)
 add_executable(hello++ hello++.cpp)
 add_executable(hellof hellof.f90)
+if("${TARGET_ARCH}" STREQUAL "x86_64-hermit")
 add_executable(pi pi.go)
+endif()
 add_executable(allocator allocator.c)
 
 add_executable(endless endless.c)
@@ -21,11 +23,13 @@ add_executable(test-malloc-mt test-malloc-mt.c)
 target_compile_options(test-malloc-mt PRIVATE -pthread)
 target_link_libraries(test-malloc-mt pthread)
 
+if("${TARGET_ARCH}" STREQUAL "x86_64-hermit")
 add_executable(server server.go)
 target_link_libraries(server netgo)
 
 add_executable(RCCE_minimum RCCE_minimum.c)
 target_link_libraries(RCCE_minimum ircce)
+endif()
 
 add_executable(thr_hello thr_hello.c)
 target_compile_options(thr_hello PRIVATE -pthread)

usr/tests/jacobi.c

@@ -30,6 +30,7 @@
 #include <string.h>
 #include <math.h>
 #include <time.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include <errno.h>
 
@@ -39,38 +40,14 @@
 #define CACHE_SIZE	(256*1024)
 #define ALIGN(x,a)	(((x)+(a)-1)&~((a)-1))
 
-extern unsigned int get_cpufreq();
-static unsigned long long start_tsc;
-
-inline static unsigned long long rdtsc(void)
-{
-	unsigned long lo, hi;
-	asm volatile ("rdtsc" : "=a"(lo), "=d"(hi) :: "memory");
-	return ((unsigned long long) hi << 32ULL | (unsigned long long) lo);
-}
-
-__attribute__((constructor)) static void timer_init()
-{
-	start_tsc = rdtsc();
-}
-
 double mysecond()
 {
-#if 0
 	struct timeval tp;
 	struct timezone tzp;
 	int i;
 
 	i = gettimeofday(&tp,&tzp);
 	return ( (double) tp.tv_sec + (double) tp.tv_usec * 1.e-6 );
-#else
-	double ret;
-
-	ret = (double) (rdtsc() - start_tsc) / ((double) get_cpufreq() * 1000000.0);
-	//printf("CPU frequency: %d MHz\n", get_cpufreq());
-
-	return ret;
-#endif
 }